The utility model discloses a cavity-type vacuum sealing machine, comprising a machine body and a cover which covers the machine body. The machine body is internally provided with a tray; an airtight cavity for holding packaging bags is formed between the tray and the cover; the cavity is internally provided with a hot-pressing bar and a heating and sealing component for sealing the packaging bags; the machine body is internally provided with a vacuum pump set for vacuumization; and the suction ports of the vacuum pump set communicate with the airtight cavity for holding the packaging bags via tubes. The cavity-type vacuum machine disclosed by the utility model has the advantages of smaller volume and small occupied space.

A food processing system is disclosed. The food processing system includes a food scaling portion, a food bagging portion and a chute portion connecting the food scaling portion to the food bagging portion. The food processing system also includes a foreign object sensor arranged about the chute portion. The foreign object sensor and the chute portion cooperatively form a foreign object sensing zone within a passage formed by the chute portion that extends along a portion of a length of the chute portion. The food processing system also includes at least one sensor testing conduit extending through one or both of the food scaling portion and the chute portion. An exit opening of the at least one sensor testing conduit is arranged in an opposing relationship with respect to the foreign object sensing zone. A foreign object sensor apparatus for detecting non-foodstuff material is also disclosed. A method is also disclosed.

A composite belt assembly for a band sealer is provided. The composite belt assembly comprises a belt comprising a main belt; a first layer; and a second layer; wherein the first layer is arranged in contact with the main belt, preferably between the second layer and the main belt; and the first layer includes an attachment portion, configured to contact the main belt and the second layer. There is also provided a band sealer comprising a composite belt assembly and a packaging line comprising the band sealer. There is further provided a method for heat sealing a package, comprising providing a composite belt assembly, gripping a bag neck of the package using the composite belt assembly, guiding the bag neck of the package along a movement plane using the composite belt assembly providing a sealing element configured for heat sealing a plastic material of the bag neck, and applying heat to at least part of the bag neck through the first layer of the composite belt assembly using the sealing element.

A lid for a vacuum sealing device may include a housing that supports a sealing station. The housing may define a sealing surface with a sealing perimeter that is able to seal against a canister body when the sealing surface is located on the canister body so that the sealing surface and the canister body together define a sealed volume. The sealing station is supported by the housing and extends from the housing. The sealing station is configured to heat seal an open bag, the sealing station being located within the sealing perimeter of the sealing surface such that when the lid is located onto the canister body, the sealing station is disposed within the sealed volume. The lid may have an internal pump for vacuum sealing operations or may receive a vacuum from an external source.

A bag clamping device for a material bag filling system is provided. A filling tube portion of a material bag can be blown to be in an upright state from a collapsed state through displacement and lift of an X-axis rail, a Y-axis rail and a Z-axis rail and blow of a pair of blowers. A pair of electric clamps is configured to clamp the filling tube portion. A pair of cantilevers is displaced to the bottom of a material filling device. The filling tube of the material filling device is displaced in a Z direction to enter the material bag for blowing air and filling the material. Through a conveyor belt displaced at the bottom in an X direction to carry the material bag with the filled material to a sealing device for sealing, so as to complete the packaging.

A vacuum packing apparatus includes a box, a lid, a solenoid, a vacuum pump, a pressure gauge, a time relay, a thermal sealer and a controller. The box includes a chamber. The lid is connected to the box. The thermal sealer is located in the chamber. The controller is electrically connected to the vacuum pump, the solenoid, the thermal sealer and the time relay. The panel is electrically connected to the controller.

A form-fill-seal machine forms a bag by filling and sealing a packing object in a wrapping material. The form-fill-seal machine includes a thickness adjustment unit which adjusts a thickness of the bag and a control unit which controls an operation of the thickness adjustment unit. The control unit acquires thickness information obtained in a rear stage of the form-fill-seal machine and relating to a thickness of the bag and controls the operation of the thickness adjustment unit on the basis of a result obtained by performing statistical processing on the thickness information.

The seal plate assembly of this invention includes a base plate, an insulator pad positioned on the base plate, an electric heater pad positioned on the insulator pad and a pair of seal plates positioned on the electric heater pad, all of which have registering vacuum openings formed therein. The base plate, insulator pad, heater pad and seal plates are bolted together. The seal plates have spaced-apart cavities formed therein. A support plate is positioned in each of the cavities with each of the support plates having a length and width which is less than the length and width of the respective cavity to create a vacuum space at the perimeter of the support plates. The support plates are spaced above the bottom of the cavities.

A packaging machine includes an indexing mechanism (210), a base (220), and a clamping arrangement (250). The indexing mechanism moves a web (10) of preformed bags along a path of travel. The base (220) is downstream of the indexing mechanism (210) along the path of travel and supports an engagement member (240) that includes a finger (242) having a beveled end (244). The clamping arrangement (250) supports a gripper (271) that includes a beveled surface (274) and a gripping surface (272). The base (220) further includes an engagement recess (222). The engagement member (240) is positioned within the engagement recess (220) and the beveled end (274) of the gripper (271) is capable of being disposed within the engagement recess. The indexing mechanism is configured to reverse index the web when the beveled end (274) of the gripper (271) is disposed within the engagement recess (222) so that the finger (242) and the gripper (271) are inserted into the top of one of the bags.

A heat sealing apparatus includes: a first sealing unit and a second sealing unit which are provided to be capable of being opened and closed and perform a heat sealing process of a bag while nipping the bag in a state where the first sealing unit and the second sealing unit are arranged in a closed position with the bag positioned between the first sealing unit and the second sealing unit; and a heat shield member including a heat reflector which is provided to cover at least a part of the first sealing unit and the second sealing unit arranged in the closed position, at a position away from the first sealing unit and the second sealing unit.