FOOD PRODUCT LOADER FOR FOOD PROCESS LINES
20210100258 · 2021-04-08
Inventors
Cpc classification
B65G47/8876
PERFORMING OPERATIONS; TRANSPORTING
B65G47/1492
PERFORMING OPERATIONS; TRANSPORTING
B65G47/12
PERFORMING OPERATIONS; TRANSPORTING
B65G2201/0202
PERFORMING OPERATIONS; TRANSPORTING
B65G2201/047
PERFORMING OPERATIONS; TRANSPORTING
B65G41/008
PERFORMING OPERATIONS; TRANSPORTING
International classification
B65G47/12
PERFORMING OPERATIONS; TRANSPORTING
B65G47/71
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A food-product loader has a conveyor passing through its cabinet, and the cabinet is formed with a bulk hopper. The loader is loaded with elongate pieces of food-product by way of dumping a heaping mass of the food-product pieces into the bulk hopper all at one time. The loader ultimately handles the heap of food-product pieces such that, the loader loads the pieces onto the conveyor in neat lanes, with individual pieces slightly spaced apart from one another. To do this, the loader is constructed with a series or array of soft-sided dispensing sleeves or funnels which are mechanically massaged to tease out one piece at a time, and only one piece at a time.
Claims
1. (canceled)
2. A food-product loader for loading elongate pieces of meat onto an underpassing conveyor; comprising: a bulk hopper, adapted to receive a bulk supply of the elongate pieces of meat, having a trough portion extending from a high elevation characterized by a common headspace, transitioning into a lateral distribution of chutes in “N” lanes over the underpassing conveyor at an intermediate elevation, wherein each chute is formed a respective outlet port at a low elevation; a corresponding lateral distribution of soft-sided funnels respectively suspended below a respective outlet port of a respective chute and being elevationally elongated between an intake port, adapted to receive elongate pieces of meat from the respective outlet port of the respective chute, and, a dispensing port, adapted to dispense single pieces at a time of the elongate pieces of meat onto the underpassing conveyor; flanking massaging frame assemblies disposed to massage spaced upline and downline portions of sides of the soft-sided funnels for massaging or teasing out one piece of food product at a time; a source of solution; and a solution spray system comprising a sprayer spraying solution over the bulk supply of the elongate pieces of meat at or proximate the common headspace of the trough portion.
3. The food-product loader of claim 2, wherein: the sprayer comprises a laterally elongate spray arm suspended over the common headspace of the trough portion.
4. The food-product loader of claim 3, wherein: the sprayer comprises a laterally distributed plurality of spray sources suspended over the common headspace of the trough portion.
5. The food-product loader of claim 4, further comprising: a plurality of laterally-distributed rigid-walled lane dividers suspended across a food-product carrying run of the underpassing conveyor and partitioning the food-product carrying run laterally into “N” lanes; wherein the dispensing ports of the soft-sided tunnels and the plurality of lane dividers are cooperatively arranged such that the dispensing ports dispense into a respective one of the “N” lanes partitioned across the food-product carrying run of the underpassing conveyor.
6. The food-product loader of claim 5, wherein: the solution spray system further comprises another sprayer spraying solution over the dispensed elongate pieces of meat at or proximate overhead space over the lane dividers.
7. The food-product loader of claim 6, wherein: this other sprayer comprises a laterally distributed plurality of spray sources suspended over the lane dividers.
8. The food-product loader of claim 5, wherein: the solution spray system further comprises a recirculation pump for recirculating excess solution collected below the food-product carrying run of the underpassing conveyor back through the one and the other sprayers.
9. A food-product loader for loading elongate pieces of meat onto an underpassing conveyor; comprising: a bulk hopper, adapted to receive a bulk supply of the elongate pieces of meat, having a trough portion extending from a high elevation, transitioning into a lateral distribution of chutes in “N” lanes over the underpassing conveyor at an intermediate elevation, wherein each chute is formed a respective outlet port at a low elevation; a corresponding lateral distribution of soft-sided funnels respectively suspended below a respective outlet port of a respective chute and being elevationally elongated between an intake port, adapted to receive elongate pieces of meat from the respective outlet port of the respective chute, and, a dispensing port, adapted to dispense single pieces at a time of the elongate pieces of meat onto the underpassing conveyor; flanking massaging frame assemblies disposed to massage spaced upline and downline portions of sides of the soft-sided funnels for massaging or teasing out one piece of food product at a time; a plurality of laterally-distributed rigid-walled lane dividers suspended across a food-product carrying run of the underpassing conveyor and partitioning the food-product carrying run laterally into “N” lanes; wherein the dispensing ports of the soft-sided tunnels and the plurality of lane dividers are cooperatively arranged such that the dispensing ports dispense into a respective one of the “N” lanes partitioned across the food-product carrying run of the underpassing conveyor.
10. The food-product loader of claim 9, further comprising: rigid-walled sidewalls suspended across the food-product carrying run of the underpassing conveyor as well as downline from the plurality of laterally-distributed rigid-walled lane dividers providing continuation of the food-product carrying run being laterally partitioned into “N” lanes for some downline extent past the dispensing ports of the downline soft-sided funnels.
11. The food-product loader of claim 10, wherein: the rigid-walled sidewalls can be characterized alternately as left-side leafs and right-side leafs adjustably connected to downline margins of the lane dividers to pivot about an elevationally elongated pivot axis; and a respective left-side leaf and right-side leaf for a given one of the “N” lanes are pivotally adjustable laterally toward and away from each other between tapering and relatively parallel extremes; whereby the respective left-side leaf and right-side leaf for the given one of the “N” lanes serve as a collimating channel that can be focused to make a relatively narrow choke point (bottleneck) for the pieces of elongate food product headed downline, and thereby provide a longitudinally-straightening effect on the elongate pieces of food product.
12. The food-product loader of claim 11, further comprising: a pair of laterally-elongated laterally-extending drive rods having reversibly thrusting drive strokes, one of the pair of the laterally-elongated laterally-extending drive rods being arranged and coupled to drive left-side leafs only and the other of the pair of the laterally-elongated laterally-extending drive rods being arranged and coupled to drive right-side leafs only; whereby all the left-side leafs are adjusted in unison as are all the right-side leafs.
13. The food-product loader of claim 9, wherein: the flanking massaging frame assemblies comprise an upline massaging frame assembly and a downline massaging frame assembly; the upline massaging frame is rotated by an upline drive axle therefor; the downline massaging frame is rotated by a downline drive axle therefor; the plurality of laterally-distributed rigid-walled lane dividers at each partition on both sides of all the “N” lanes are formed either (1) with an upline through-aperture for extension of the upline drive axle therethrough, or (2) with a downline through-aperture for extension of the downline drive axle therethrough.
14. The food-product loader of claim 13, wherein: the plurality of laterally-distributed rigid-walled lane dividers at each partition on both sides of all the “N” lanes are formed both (1) with an upline through-aperture for extension of the upline drive axle therethrough, and, (2) with a downline through-aperture for extension of the downline drive axle therethrough.
15. The food-product loader of claim 14, wherein: each massaging frame is laterally partitioned into “N” sections across the “N” lanes; each section comprises plural paddles connected extended from and driven in rotation by the respective drive axle therefor; the plural paddles in each section are angularly-space apart from one another and present massaging surfaces radially spaced from the respective drive axle therefor.
16. The food-product loader of claim 15, wherein: the paddles comprise cross bars elongated within and relative to the respective section therefor, which cross bars are supported radially spaced away from the respective drive axle therefor by at least two laterally-spaced spokes; and further comprising a biasing arrangement for the cross bars relative the spokes biasing the cross bars in a radially outward extreme and while permitting radially-inward yielding; whereby the biasing arrangement enhances peristaltic-style motivation of single pieces at a time out through the dispensing ports of the soft-side funnels so that one individual piece after the next dispensed by any given dispensing port are relatively longitudinally spaced apart from one another.
17. A food-product loader for loading elongate pieces of meat onto an underpassing conveyor; comprising: a bulk hopper, adapted to receive a bulk supply of the elongate pieces of meat, having a trough portion extending from a high elevation, transitioning into a lateral distribution of chutes in “N” lanes over the underpassing conveyor at an intermediate elevation, wherein each chute is formed a respective outlet port at a low elevation; a corresponding lateral distribution of soft-sided funnels respectively suspended below a respective outlet port of a respective chute and being elevationally elongated between an intake port, adapted to receive elongate pieces of meat from the respective outlet port of the respective chute, and, a dispensing port, adapted to dispense single pieces at a time of the elongate pieces of meat onto the underpassing conveyor; flanking massaging frame assemblies disposed to massage spaced upline and downline portions of sides of the soft-sided funnels for massaging or teasing out one piece of food product at a time; the underpassing conveyor having a downline transfer end; and further comprising a downline outflow conveyor extending longitudinally between an upline infeed end receiving a flow of food product from the downline transfer end of the underpassing conveyor, and, a downline nose end for said food product loader; as well as weight sensors arranged with the downline outflow conveyor to provide weight signals corresponding to food-product output or through-put flow rate.
18. The food-product loader of claim 17, further comprising: a drum motor mounted in or on the food product loader to have a relatively stationary drive axis relative the food product loader; the downline outflow conveyor comprising an endless belt arranged to longitudinally course around the upline infeed end where the downline outflow conveyor is driven by the drum motor, and, the downline nose end, such that the downline outflow conveyor presents an upper food-product carrying run and a lower return run; and the weight sensors comprise at least a laterally-spaced pair of load cells supporting the downline outflow conveyor cantilevered from the drum motor.
19. The food-product loader of claim 18, wherein: the weight sensors comprise a laterally-spaced near pair of load cells relative the drum motor, and a laterally-spaced distant pair of load cells relative the drum motor, all which load cells cooperatively support the downline outflow conveyor cantilevered from the drum motor.
20. The food-product loader of claim 19, further comprising: a controller receiving the signals of the load cells as input.
21. The food-product loader of claim 20, wherein: the controller is programmed to provide information corresponding to a wide variety of reported values of the four load cells, even when all four load cells are reporting different values, such as the case when a single piece of food product is missing in any given lane in any given row transiting across the downline outflow conveyor.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0023] There are shown in the drawings certain exemplary embodiments of the invention as presently preferred. It should be understood that the invention is not limited to the embodiments disclosed as examples, and is capable of variation within the scope of the skills of a person having ordinary skill in the art to which the invention pertains. In the drawings,
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0044]
[0045] The elongate strip-form food product pieces 50 have been itemized (individualized, or placed in spaced distribution) by the food product loader 100 to be received by the transfer conveyor 102 (and downline equipment downline from the transfer conveyor 102, but none shown here) in laterally-spaced lanes 104, longitudinally spaced apart from one another, and aligned in a longitudinal orientation.
[0046] In this description, illustrated elongate strip-form food product pieces 50 are indicated by reference numeral 50. Any open arrow used to symbolically represent itemized or individual elongate strip-form food product pieces 50 is indicated by reference numeral 51. In contrast, illustrated bulk flow of the elongate strip-form food product pieces 50 (or bulk quantities rather than individual pieces) is indicated by reference numeral 52. Any open arrow used to symbolically represent any bulk flow or quantity of the elongate strip-form food product pieces 50 is indicated by reference numeral 53.
[0047] Hence in
[0048]
[0049] The food product loader 100 has an assemblage of components 114 comprising what is termed here for convenience as itemizing “componentry,” which includes an infeed hopper 122.
[0050] The food product loader 100 has three endless belt conveyors 124, 126 and 128 in series, one being an infeed conveyor 124 to the itemizing componentry and the other two being outflow conveyors 126 and 128, namely:— [0051] an infeed conveyor 124 for the infeed hopper 122, which infeed conveyor 124 has an upper food product carrying run 132 scraping across an inclined floor 134 (eg., stainless steel panel) for the hopper 122; [0052] an upline outflow conveyor 126 onto which the itemized food product pieces 50 are originally distributed across; and [0053] a downline outflow conveyor 128 (which is also a weighing conveyor) from which food product pieces 50 are ultimately discharged from the food product loader 100.
[0054]
[0055] In any event, it is an aspect of the food product loader 100 in accordance with the invention to provide an onboard vacuum pump 140, as it is believed that the vacuum pump 140 represents the greatest capital cost in such vacuum systems, the conduits and separation chambers being far less costly.
[0056]
[0057] It is an aspect of the present invention that the value of the constant spraying of solution (moisture) onto the food product 50,51 pieces improves the itemizing operations of the itemizing componentry 114. The solution serves as a lubricant, albeit the solution is largely water-based. So in use, solution is generously sprayed in two especially strategic locations. It is also advantageous to season the solution in part. Hence the generous spraying of solution also serves a second function as marinading the food product pieces 50 at the same time.
[0058] The three aforementioned endless belt conveyors 124, 126 and 128 for the food product loader 100 preferably comprise without limitation wire mesh belts. These wire mesh belts readily allow water/solution to pour through. Hence the interior of the cabinet 136 for the food product loader 100 is configured in the upper half as a water vessel, with a V-shaped vessel bottom wall 144 draining into a laterally-extending return gutter 146. The return gutter 146 provides a renewed supply of solution to a recirculation pump 148. The recirculation pump 148 pumps up solution by return conduits to at least a first and second laterally extending spray arm 152 and 154.
[0059]
[0060] With general reference to
[0061]
[0062] The bulk flow 55 then pours over the discharge end of the infeed hopper 122's floor infeed conveyor 124 in a laterally-thinned sheet 55 into an open-topped hard-walled trough 168.
[0063] The trough 168's common overhead headspace 172 transitions into a laterally-spaced series of gently rounded crests 182, the downslopes 184 of which fall into one or the other of the eight laterally-spaced hard-walled chutes 174. The crests 182 are not only laterally-rounded with downslopes plummeting into one or the other of the laterally-spaced hardwalled chutes 174, the crests 182 are also longitudinally inclined from the upline to downline direction. That way, that no individual piece 50 of food product finds a stable perch for very long on any crest 182. That is, each individual food product piece 50 will likely be urged by another piece landing on top of it to fall immediately into one chute 174 or the other, or else slide down the spine 188 of the crest 182 to the upline end 212 until that food product piece 50 ultimately loses the battle against keeping its balance. Ultimately, every food product piece 50 is expected to find its way downward into a chute 174. On average (ie., weight or mass average), the bulk flow 55 will be laterally divided into about equal eighths into one each of the eight chutes 174. The chutes 174 taper inwardly downwardly in the longitudinal direction to terminate in eight laterally spaced outlet ports 214 aligned in a common elevation.
[0064] As
[0065] The trough 168 discharges streams of food product pieces 50 out of each of its plurality (eg., eight) chutes 174 into a funnel assembly 224 that is provided with a like number (eg., eight) of soft-side funnels 176. These soft-sided funnels 176 can be likened to icing-dispensing funnels for cake decorators.
[0066] The funnels 176 have a common header 218 which is a planar panel (or panel-form) that slides into a use position and out for removal from one side of the food product loader 100. The common header 218 can be made of stainless steel sheet with the soft-sided funnels 176 adhered thereto. It is preferred to make the header 218 and soft-side funnels 176 as a monolithic whole of polymeric material. It is also intended that the funnel assembly 224 is largely a use-once and discard component. That is, with each washing/cleaning cycle, the hardwalled trough 168 will be sanitized re-deployed while in contrast the funnel assembly 224 will be discarded and replaced with a fresh new one.
[0067] As individual pieces 50 of elongate food product migrate down the tapering chutes 174 and then the soft-sided funnels 176, the pieces 50 begin to naturally distance from each other and nearly form a single-file downstream of pieces 50.
[0068] There are a pair of laterally-extending, longitudinally-spaced massaging frame assemblies 232 and 234 flanking the row of the plurality of soft-sided funnels 176 on an upline side and downline side respectively.
[0069] It is a further aspect of the present invention that the massaging frame assemblies 232 and 234 are partitioned into a plurality of laterally-spaced sections 236 and 238. Preferably each of the upline massaging frame assembly 232 and downline massaging frame assembly 234 provides an upline and downline counterpart section 236 and 238, respectively, for each lane 104. The sections 236 and 238 are partitioned by stationary (preferably stationary) lane dividers 242.
[0070] Each massaging frame assembly 232 and 234 comprises a rotating shaft 244 and 246. The upline shaft 244 rotates counterclockwise in the figures, and the downline shaft 246 clockwise in the figures. Each shaft 244 and 246 carries a multiplicity of elongate spokes 248. The spokes 248 extend from bases 252 anchored each spoke 248′s respective shaft 244 or 246. The spokes 252 terminate in terminal ends 254 which support laterally elongate cross-bars, or paddles 256.
[0071] The upline and downline massaging frame assemblies 232 and 234 counter-rotate into each other as shown. A given upline massaging frame section 236 in a given lane 104 and the counterpart downline massaging frame section 238 in the given lane 104 provide a downward massaging stroke on the respective soft-side funnel 176 in the same given lane 104. The massaging stroke serves not only as an urging force to urge one single elongate food piece 50 down at a time below a plane containing both drive shafts 244 and 246, but also serves a check valve function to hold back the next successive single piece 50 of elongate food product.
[0072] So again, improvements have been made and/or learned with respect to massaging frame assemblies 232 and 234 configuration and rotation timing.
[0073] The massaging frame assemblies 232 and 234 here, for example and without limitation, present rotating paddles 256 angularly spaced every 120° apart. In other words, each section 236 and 238 of the massaging frame assemblies 232 and 234 present three equally angularly-spaced apart paddles 256 for every rotation. Configurations can be varied with less than three paddles 256 or more than three paddles 256 for each revolution, but three are shown here for example and without limitation.
[0074] In the previous patent, each paddle was an elongate monolithic unit extending laterally across all the lanes 104. Here, an improvement in accordance with the invention resides in part in that such monolithic paddles are sub-divided here into sections 236 and 238 according to one section 236 or 238 for each lane 104.
[0075] Each massaging frame assembly 232 and 234 comprises a central drive shaft 244 and 246 and then also paddles 256 per section 236 or 238 numbering “X” paddles 256 per revolution (eg., three here) times number of lanes 104 (eg., “N,” or eight here). Therefore, in the non-limiting exemplary configuration here, there are twenty-four paddles 256 per massaging frame assembly 232 or 234. Each massaging frame assembly 232 and 234 further comprises not only the central drive shaft 244 or 246 but then also a pair of spokes 248 for each paddle section 236 or 238. Wherein, given the twenty-four paddles 256 here per massaging frame assembly 232 or 234, that makes forty-eight spokes 248 per massaging frame assembly 232 or 234.
[0076] Whereas in the earlier patent, each paddle for a massaging frame assembly might be a monolithic unit about as long as the drive shaft, the counterpart paddle presentation is sub-divided laterally into “N” sections, wherein “N” corresponds to number of lanes 104, hence eight laterally-divided sections 236 or 238. With “X” (or three) paddles 256 in each of the “N” (or eight) lanes 104, then in other words there are three paddles 256 in each section 236 or 238 of a massaging frame assembly 232 or 234. The “X” paddles 256 are angularly uniformly spaced apart from one another (here, 120° apart).
[0077]
[0078]
[0079]
[0080]
[0081]
[0082] Each collimating channel 260 comprises a left-side sidewall (or leaf) 264 and right-side sidewall (or leaf) 266. These sidewalls 264 and 266 can be alternatively referred to as leafs 264 and 266 because they are adjustable and can be swung left to right in shallow angles:—in pairs like the leafs of a hinge.
[0083] So in
[0084] In
[0085] Staying in
[0086] Nevertheless, for each such pairs of leafs 266 and 264 in adjacent lanes 104, these leafs 266 and 264 swing with respect to each other like the leafs of a hinge. The non-limiting disclosure here has each leaf 266 and 264 independently mounted to its own hinge 276, and it is hinged to the downline (front) margin of the lane dividers 242 for the sections of the massage frame assemblies.
[0087]
[0088] In this fashion, the collimating channels 260 can be focused to make a relatively narrow choke point (bottleneck) for the pieces 50 of elongate food product headed downstream.
[0089] Pause can be taken to return to the subject matter of the solution recirculation system 142.
[0090] Evidently, there is no upper limit of how much spraying is too much. The lubrication works wonders to prevent clogging and promote uniform alignment. The solution is recirculated in the food product loader 100 in any event and so excess is not being sent downline to equipment further downstream.
[0091]
[0092]
[0093] As
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[0096] It is an aspect of the invention to isolate cross bars 256 into sections 236 and 238 into individual lanes 104 so that the relative foreshortening of what occurs in lane “1” does not carryover into lane “2” or any of the other lanes 104. So each section 236 and 238 of mutually displacing cross bars 256 operates independently in its own lane 104, with no information coming over from any other lane 104. Whereas the lane dividers 242 serve several purposes, one purpose is to further isolate each upline and downline counterparts of sections 236 and 238 of the massaging frame assemblies 232 and 234 operatively isolated within their own respective lanes 104 only.
[0097] Note also that the timing of the timing of the upline massaging frame assembly 232 might be 1° or so (one degree) behind the downline massaging frame assembly 234. In other words, they are not perfectly in unison, although very nearly so.
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[0102] Indeed, the underpassing food-product carrying upper run 258 of the upline outflow conveyor 126 assists in pulling the elongate food product piece 50 free of the bottom port 262 of the soft-sided funnel 176, and in the preferred longitudinal alignment, by frictional engagement.
[0103]
[0104] The downline outflow conveyor 128 extends between an upline drive end 312 driven by a drum motor 314 and a downline nose end 316. The downline outflow conveyor 128 is essentially cantilevered from the drum motor 314. The downline nose end 316 is relatively free to pivot up and down relative the position shown in, for example,
[0105] It is preferable to use a drum motor 314 in contrast to a standard motor configuration. Standard motors have their skin mounted stationary and their central axle is a rotor which rotates. With drum motors 314, the central axle is held stationary and the skin (the cylindrical casing) rotates. It is preferred to use electric-powered drum motors 314. To return to
[0106] These load cells 322, 324, 326 and 328 suspend the cantilevered downline outflow conveyor 128 for reasons including in part just to hold it, unloaded and stopped (not running) in the position as shown in
[0107] When the cantilevered downline outflow conveyor 128 is unloaded and stopped (not running), the load cells 322, 324, 326 and 328 will provide a signal corresponding to some force (eg., weight).
[0108] When the cantilevered downline outflow conveyor 128 is still unloaded but now running, the load cells 322, 324, 326 and 328 will provide a signal corresponding to a greater force. The differential between the two forces is the force required to oppose the centripetal force of the running drum motor 314.
[0109] All the foregoing signals are calibrated (or otherwise accounted for) to correspond to a tare weight. Now the load cells 322, 324, 326 and 328 are prepared for providing signals that can be corresponded to flow rate measurements.
[0110]
[0111] Note however that all four gauges are reporting different values. The distant-left gauge is reporting the least value, the near-left gauge the second-least value, the distant-right gauge the third-least value, and the near right value the greatest value.
[0112] In use, it has been discovered that this set-up of load cells 322, 324, 326 and 328 can detect when a fresh row 58 of “N” lanes 104 of food product pieces 50 is deposited on the upline infeed end 312 of the downline outflow conveyor 128, and correspondingly when the lead row 58 of “N” lanes 104 traverses past (drops off) the downline nose end 316 of the downline outflow conveyor 128. Whereas it is assumed all “N” lanes 104 in all rows 58 are filled, that is not always true. Nevertheless, this set-up of load cells 322, 324, 326 and 328 is so sensitive that such missing occupancy can be detected and the transit of that hole in the array can be observed by a computational device 330. As an aside, the computational device 330 can provide indications of this to human observers according to programming.
[0113] Given the foregoing, an average weight (or mass) flow rate can be reckoned, and rate can be adjusted up or down accordingly as desired (within limits).
[0114] As an aside, the bulk hopper 122's floor infeed conveyor 124 travels much more slowly than the outflow conveyors a126 and 128. This is because the weight (mass) of bulk food product 52,53 per unit length of infeed conveyor 124 is so much greater than the spaced distribution of pieces 50 on the outflow conveyors 126 and 128, that the outflow conveyors 126 and 128 have to travel at a relatively brisk speed to keep up.
[0115] The invention having been disclosed in connection with the foregoing variations and examples, additional variations will now be apparent to persons skilled in the art. The invention is not intended to be limited to the variations specifically mentioned, and accordingly reference should be made to the appended claims rather than the foregoing discussion of preferred examples, to assess the scope of the invention in which exclusive rights are claimed.