Tube-propelling apparatus for tube bending machine

Abstract

Disclosed is a tube-propelling apparatus for a tube bending machine. The apparatus comprises a main tube-propelling base mounted on a slide rail mechanism of a tube bending machine tool, wherein a penetrating hole though which both a fixing sleeve and a core rod pass is provided on the main tube-propelling base, the rear end of the fixing sleeve is fixed in the penetrating hole, and the front end of the fixing sleeve is provided with a tube clamping apparatus. The propelling apparatus further comprises a surplus material auxiliary propelling base mounted on the slide rail mechanism of the tube bending machine tool, wherein the surplus material auxiliary propelling base is provided with a through-hole coaxial with the penetrating hole of the main tube-propelling base. An auxiliary pushing sleeve is mounted in the through-hole, and the core rod passes through the auxiliary pushing sleeve. Meanwhile, the auxiliary pushing sleeve is sheathed in the fixing sleeve and the front end of the auxiliary pushing sleeve is provided with a propelling head engaging with a tube. The tube-propelling apparatus has a simple and rational structure, and can fully utilize surplus material.

Claims

1. A tube-propelling apparatus for tube bending machine comprising: a main tube-propelling base 1 mounted on a slide rail mechanism 3 of a bending machine 2, the main tube-propelling base 1 can be slid back and forth through a sliding block mounted on the bottom of said main tube-propelling base; the main tube-propelling base is provided with a penetrating hole for receiving a fixing sleeve and a core rod, a back end of the fixing sleeve is fixed in the penetrating hole, the front end of the fixing sleeve is provided with a tube clamp apparatus for securing the tube; it is characterized by that: a surplus material auxiliary propelling base is provided and mounted on the slide rail mechanism that can slide back and forth; said surplus material auxiliary propelling base is provided with a through hole that has the same axis with the penetrating hole of the main tube-propelling base; an auxiliary pushing sleeve is provided in the through hole for the core rod to pass through the auxiliary pushing sleeve, at the same time, the auxiliary pushing sleeve is coaxial with the fixing sleeve; the front end of the auxiliary pushing sleeve is provided with a pushing head; and a power push apparatus for sliding the surplus material auxiliary propelling base back and forth, wherein said sliding rail mechanism of the bending machine is further provided with a tube locking controlling base that can slide back and forth, the tube locking controlling base is provided with a through hole; a shaft sleeve is provided inside the through hole of the tube locking controlling base, the shaft sleeve located between the fixing sleeve and auxiliary pushing sleeve, the front end of the shaft sleeve couples with the tube clamp apparatus.

2. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein it is characterized that said slide rail mechanism is used at the same time for main tube-propelling base, surplus material auxiliary propelling base and the tube locking controlling base.

3. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein said tube clamp apparatus 41 comprises a tube clamp 42 fixed on the fixing sleeve 4, one end of the tube clamp 42 is slotted to form an elastic tube claw 421 and the other end of the tube clamp 42 is provided with a tapered surface 422 to be coupled with the front end of the shaft sleeve 10.

4. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein it is characterized that, a rack is provided by the side of slide rail mechanism; said main tube-propelling base is mounted on the said rack, and the bottom of the main tube-propelling base is provided with a first electric motor and a first gear; and said first gear engages with the said rack to allow a back and forth slide.

5. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein it is characterized that the power pushing apparatus comprises a second electric motor mounted on the main tube-propelling base and a threaded rod of which one end of said threaded rod is connected to and powered by the second electric motor; and the other end of said threaded rod is connected to a threaded nut mounted on the surplus material auxiliary propelling base.

6. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein it is characterized that the power pushing apparatus comprises a second electric motor mounted on the surplus material auxiliary propelling base; said surplus material auxiliary propelling base is also mounted on a rack by the slide rail mechanism; the bottom of the surplus material auxiliary propelling base is provided with a second gear powered by said second electric motor and the second gear engages with the rack to allow a back and forth slide.

7. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein it is characterized that a threaded nut is provided and mounted on the tube locking controlling base, and correspondingly, a third electric motor is provided and mounted on the main tube-propelling base; one end of a threaded rod is connected to the output end of said third electric motor, and the other end of the threaded rod is connected to the threaded nut on the tube locking controlling base.

8. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein it is characterized that said pushing head is removably attached to the front end of the auxiliary pushing sleeve.

9. The tube-propelling apparatus for tube bending machine as claimed in claim 8, wherein it is characterized that the front end of the pushing head is removably attached to the tube by a plug and connect part; and the back end of the pushing head is provided with a receive and connect part, and the front end of the auxiliary pushing sleeve is provided with a pin hole, and the front peripheral end of the auxiliary sleeve 7 is provided with threaded holes, a screw nail with a ball point is provided and tightened in the threaded hole, a spring is provided to support the ball point in a cavity of the screw nail, the spring maintains the ball point in a protruding position, a pin is inserted into the pin hole and pushes against the plug and connect part of the pushing head, the ball point of the screw nail pushes against a limiting groove provided on the pin.

10. The tube-propelling apparatus for tube bending machine as claimed in claim 8, wherein it is characterized that the front end of the pushing head is removably attached to the tube by a plug and connect part and the back end of the pushing head is a threaded connection part; the pushing head is attached to the auxiliary pushing sleeve through the threaded connection part.

11. The tube-propelling apparatus for tube bending machine as claimed in claim 1, wherein it is characterized that the back end of said fixing sleeve is rotatably mounted in the through hole.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a structural view of the present invention bender machine;

(2) FIG. 2 is a structural view the surplus material auxiliary propelling base;

(3) FIG. 3 is a structural view the surplus material auxiliary propelling base without the auxiliary pushing sleeve;

(4) FIG. 4 is a perspective view of the main tube-propelling base;

(5) FIG. 5 is a side view of the main tube-propelling base;

(6) FIG. 6 is a perspective view of a power motor;

(7) FIG. 7 is a structural view of the tube clamp and auxiliary pushing, sleeve;

(8) FIG. 8 is a structural view of the propelling head;

(9) FIG. 9 is an installation view of the propelling head;

(10) FIG. 10 is a structural view of the pin and screw; and

(11) FIG. 11 is a connection view of the tube locking controlling base and the main tube propelling base.

DETAILED DESCRIPTION OF THE INVENTION

(12) The accompanying drawings of embodiments of the present invention will be further described in detail.

(13) As shown in FIG. 1FIG. 11, the present invention a tube-propelling apparatus for tube bending machine comprises a main tube-propelling base 1 mounted on the slide rail mechanism 3 of a bending machine 2, the main tube-propelling base 1 can be slide back and forth through a sliding block mounted on the bottom with the sliding rail mechanism 3; the main tube-propelling base is provided with a penetrating hole 11 for receiving a fixing sleeve 4 and a core rod 5, the back end of the fixing sleeve 4 is provided with a flange structure 111 for rotatably fixed in the penetrating hole 11, the front end of the fixing sleeve 4 is provided with a tube clamp apparatus 41 for securing the tube, and the core rod 5 passes through the penetrating hole 11 but not touching the penetrating hole 11, as shown in the figures.

(14) As a preferred embodiment; the sliding rail mechanism 3 of the bending machine 2 is provided with a rack 21, the main tube-propelling base 1 is mounted on the rack 21, furthermore, the bottom of the main tube-propelling base 1 is provided with a first electric motor 12 for powering a first gear 121, the first gear 121 engages with the rack 21 for allowing sliding movement of the main tube-propelling base 1; of course other means of sliding structure can be used for sliding the main tube-propelling base on the slide rail mechanism 3, such as with electric motor and threaded rod and nut, as shown in the figures.

(15) The present invention is further provided with a surplus material auxiliary propelling base 6, for the purpose of saving production costs; said surplus material auxiliary propelling base 6 is also mounted on the sliding rail mechanism 3 of the bending machine 2 and can slide back and forth on the sliding rail mechanism 3 through a sliding block.

(16) The surplus material auxiliary propelling base 6 is provided with a through hole 61 that has the same axis with the penetrating hole 11 of the main tube-propelling base 1, an auxiliary pushing sleeve 7 is provided in the through hole 61 for the core rod 5 to pass through the auxiliary pushing sleeve 7, at the same time, the auxiliary pushing sleeve 7 is sleeved by the fixing sleeve 4, the front end of the auxiliary pushing sleeve 7 is provided with a pushing head 71, as shown in FIG. 8.

(17) Pushing head 71 can be removably attached to the front end of the auxiliary pushing sleeve 7, as a preferred embodiment, the front end of the pushing head 71 is provided with a plug and push part 711 and the back end of the pushing head 71 is a receive and connect part 712, in addition, the front end of the auxiliary sleeve 7 is provided with a pin hole 72 and the front peripheral end of the auxiliary sleeve 7 is provided with threaded holes 73, a screw nail 74 with a ball point 741 is tightened in the threaded hole 73, a spring is provided to support the ball point 741 in cavity of the screw nail 74, the spring maintains the ball point in a protruding position, a pin 721 is inserted into the pin hole 72 and pushes against the receive and connect part 712 of the pushing head 71, the ball point 741 of the screw nail 74 pushes against a limiting groove on the pin 721, as shown in FIGS. 8, 9, and 10, of course, the pushing head 71 can adopt a simple thread joint to be attached to the front end of the auxiliary pushing sleeve 7.

(18) The surplus material auxiliary propelling base 6 is further provided with a power pushing apparatus for sliding the surplus material auxiliary propelling base 6 back and forth. Said power pushing apparatus may slide the surplus material auxiliary propelling base 6 in various way, as a preferred embodiment, the power pushing apparatus in the present invention comprises a second electric motor 13 mounted on the main tube-propelling base 1 and a threaded rod 131 matching with the second electric motor 13; one end of the threaded rod 131 connects with a thread nut 62 on the surplus material auxiliary propelling base 6, as shown in FIG. 6. Of course, the surplus material auxiliary propelling base 6 can also slide back and forth on the sliding rail mechanism 3 with a rack, a gear and an electric motor set up.

(19) The sliding rail mechanism 3 of the bending machine 2 is further provided with a tube locking controlling base 9 that can slide back and forth, the tube locking controlling base 9 is provided with a through hole 91; a shaft sleeve 10 is provided inside the through hole 91. The shaft sleeve 10 sets between the fixing sleeve 4 and auxiliary pushing sleeve 7, the front end of the shaft sleeve 10 couples with the tube clamp apparatus 41, as shown in FIG. 7.

(20) As a preferred embodiment for coupling with the shaft sleeve 10, the tube clamp apparatus 41 in the present invention comprises a tube clamp 42 fixed on the fixing sleeve 4, one end of the tube clamp 42 is slotted to form an elastic tube claw 421 and the other end of the tube clamp 42 is provided with a tapered surface 422 to be coupled with the front end of the shaft sleeve 10, as shown in FIG. 7. Of course, the tube clamp apparatus 41 can also be used the hand operated claw commonly seen, but the effect would not be optimal.

(21) In order to allow the tube locking controlling base 9 to slide on the sliding rail mechanism 3, as a preferred embodiment, the tube locking controlling base 9 is provided with a nut 92, correspondingly, the main tube-propelling base 1 is provided with a third electric motor 14, the output end of the third electric motor 14 is provided with a threaded driving rod 141, one end of the threaded driving rod 141 connects with the nut 92 on the tube locking controlling base 92, as shown in FIG. 11.

(22) In the present invention, when the main tube-propelling base 1 pushes the tube 8 into the end of the final bending process, the anti-wrinkle board in the bending machine 2 prevents the fixing sleeve 4 on the main tube-propelling base from pushing forward anymore, however, there is still an unprocessed portion of tube 8 left in the tube clamp apparatus 41, typically, this portion of tube 8 would be the waste material. In order to fully utilize the material, a control device triggers the second electric motor 13 and the surplus material auxiliary propelling base 6 slides forward, and the pushing head 71 pushes the back end of the tube 8, at the same time, the third electric motor 14 is triggered, and the tube locking controlling base 9 slides forward, the tube clamp apparatus 41 and tube clamp 42 work together release tube 8, and then, the surplus material auxiliary propelling base 6 slides forward more so that pushing head 71 pushes forward more such that, tube 8 is pushed through the tube clamp apparatus 41. The present invention provides that through the work of main tube-propelling base 1, with the operation of surplus material auxiliary propelling base 6 and tube locking controlling base 9, to allow full utilization of tube 8, while the whole apparatus is simple in structure can be easily integrated into an automated production process.