Shearing feeding mechanism

Abstract

The utility model provides a shearing feeding mechanism which comprises a machine frame, a feeding mechanism and a shearing mechanism are arranged on the machine frame, the shearing mechanism comprises a shearing rod which transversely reciprocates, a detachable round cutter is arranged on the shearing rod, a longitudinal feeding hole is formed in the machine frame on one side of the round cutter, and a length fixing assembly is arranged on the machine frame on the other side of the round cutter. The length fixing assembly comprises a connecting base with the longitudinal position adjustable, a travel switch is fixed to the connecting base, a swing arm of the travel switch is longitudinally arranged and is opposite to the feeding hole, and a reset spring is arranged between the rack and the swing arm. Friction damage between the swing arm and a blank is avoided as much as possible, follow-up fixed length is not affected, and the round cutter is detachable and convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of cold heading equipment, in particular to a shearing feeding mechanism. Background Art

[0002] Cold heading machines are mainly used to process blanks into headed screws, rivets, etc. The blanks are obtained by cutting wires to a fixed length. The blanks are then fed into a forming die and processed into the desired shape using a stamping die. The existing cutting and feeding mechanisms of cold heading machines have the following problems: 1. The circular cutter and the cutter bar used for cutting are an integrated structure, which is not convenient for replacement as needed, or the cutter bar needs to be replaced together, which is costly; 2. After the circular cutter cuts the wire, it needs to drive the blank to the feeding station. The existing fixed-length components are usually fixed baffles, etc. When the blank is pushed to move, friction damage between the blank and the fixed baffle is easy to occur, affecting the fixed-length effect; 3. The blank cannot be transferred quickly and effectively between the cutting mechanism and the feeding mechanism, affecting the processing efficiency. Utility Model Content

[0003] The utility model provides a shearing feeding mechanism, which can avoid friction damage between the swing arm and the blank as much as possible, does not affect the subsequent fixed length, and the circular cutter is detachable and easy to replace.

[0004] The technical solution of the present utility model is achieved as follows: a shearing feeding mechanism includes a frame, a feeding mechanism and a shearing mechanism are arranged on the frame, the shearing mechanism includes a shearing rod that reciprocates laterally, a detachable circular cutter is arranged on the shearing rod, a longitudinal feeding hole is arranged on the frame on one side of the circular cutter, and a fixed length component is arranged on the frame on the other side, the fixed length component includes a connecting seat with adjustable longitudinal position, a travel switch is fixed on the connecting seat, the swing arm of the travel switch is arranged longitudinally and opposite to the feeding hole, and a reset spring is arranged between the frame and the swing arm.

[0005] Furthermore, the circular cutter includes an annular cutter seat, a positioning ring is provided on the outer side of the annular cutter seat, an annular tungsten steel cutter is provided on the inner side of the annular cutter seat, and the inner hole of the tungsten steel cutter corresponds to the feeding hole.

[0006] Furthermore, the shear rod includes a transverse main rod and an end head, which are detachably connected by bolts. The connecting surfaces of the transverse main rod and the end head are both provided with positioning grooves that cooperate with the outer side of the annular knife seat, and the positioning grooves are provided with grooves that cooperate with the positioning ring.

[0007] Furthermore, the frame is also provided with a push hole that cooperates with the circular cutter. The push hole is located on the feed side of the loading hole. A push rod that moves back and forth longitudinally is provided in the push hole. The feeding mechanism includes a feed rod that moves back and forth laterally. A pneumatic clamp is provided on the feed rod. The pneumatic clamp is located on the side of the circular cutter away from the push hole.

[0008] Furthermore, the connecting seat is connected to the frame through a longitudinal screw, one end of the longitudinal screw is fixedly connected to the frame, and the other end slides through the connecting seat, and locking nuts are screwed on the longitudinal screws on both sides of the connecting seat.

[0009] Furthermore, a transverse push groove is provided at the positioning groove of the transverse main rod. The transverse push groove is located on a side of the positioning groove away from the end head, and the transverse push groove is communicated with the positioning groove.

[0010] Beneficial effects of the utility model:

[0011] The utility model can adjust the position of the connecting seat according to needs, and thus adjust the length of the blank; the swing arm of the travel switch is longitudinally arranged, and the length is fixed by the swing arm. The swing arm can swing to avoid friction damage between the swing arm and the blank as much as possible. The swing arm is reset by the reset spring and does not affect the subsequent fixed length. When the blank cuts off the feed, the travel switch can also send an induction signal.

[0012] The shearing mechanism of the utility model can detachably arrange the circular cutter through the cooperation of the transverse main rod and the end head, and can also prevent the circular cutter from longitudinally moving and affecting the cutting effect through the cooperation of the positioning ring and the groove.

[0013] The utility model facilitates the delivery of the blank in the circular cutter to the pneumatic clamp through the cooperation of the pushing hole and the pushing rod, thereby quickly completing the transfer of the blank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 It is a structural diagram of a fixed-length component;

[0017] Figure 3 Schematic diagram of the split structure of the transverse main rod and the end;

[0018] Figure 4 Schematic diagram of the structure of the circular cutter;

[0019] Figure 5 for Figure 4 A top view of

[0020] Figure 6 Schematic diagram of the structure of the driving arm.

[0021] Frame 1, circular cutting knife 2, annular knife seat 3, positioning ring 4, tungsten steel knife 5, horizontal main rod 6, end 7, positioning groove 8, groove 9, driving arm 10, swing cylinder 11, telescopic guide rod 12, feeding hole 13, connecting seat 14, longitudinal screw 15, travel switch 16, swing arm 17, return spring 18, pushing hole 19, pushing rod 20, feeding rod 21, pneumatic clamp 22, limit rod 23, horizontal pushing groove 24. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The position terms such as horizontal and vertical in this utility model are relative to Figure 1 The positional relationship shown.

[0024] like Figure 1 and 3 -5 shows a shearing feeding mechanism, comprising a frame 1, on which a feeding mechanism and a shearing mechanism are provided, the shearing mechanism comprising a shearing rod which reciprocates laterally, the shearing rod being provided with a detachable circular cutting knife 2, the circular cutting knife 2 comprising an annular knife seat 3, a positioning ring 4 being fixed to the outer side of the annular knife seat 3, an annular tungsten steel knife 5 being fixed to the inner side of the annular knife seat 3, the shearing rod comprising a transverse main rod 6 and an end head 7, the transverse main rod 6 and the end head 7 being detachably connected by bolts, the joint surfaces of the transverse main rod 6 and the end head 7 are both provided with a positioning groove 8 which cooperates with the outer side of the annular knife seat 3, and a groove 9 which cooperates with the positioning ring 4 is provided in the positioning groove 8. A transverse push groove 24 is provided at the positioning groove 8 of the transverse main rod 6. The transverse push groove 24 is located on the side of the positioning groove 8 away from the end head 7, and the transverse push groove 24 is communicated with the positioning groove 8. When the circular cutter 2 needs to be replaced, the bolt is loosened and the circular cutter 2 and the end head are pushed through the transverse push groove 24 to move to complete the disassembly. If the circular cutter 2 is embedded tightly, the transverse push groove 24 makes it easier to disassemble the circular cutter 2.

[0025] like Figure 2As shown, the rack 1 on one side of the round cutter 2 is provided with a longitudinal feeding hole 13, and the rack 1 on the other side is provided with a fixed-length assembly, which includes a connecting seat 14 connected with the rack 1 through a longitudinal screw rod 15, one end of the longitudinal screw rod 15 is fixedly connected with the rack 1, and the other end slides through the connecting seat 14, and a locking nut is screwed on the longitudinal screw rod 15 on both sides of the connecting seat 14, and the position of the connecting seat 14 is adjusted longitudinally by loosening the nut. A travel switch 16 is fixed on the connecting seat 14, the travel switch 16 is a swing arm type travel switch, the swing arm 17 of the travel switch 16 is opposite to the feeding hole 13, and the rack 1 and the swing arm 17 are connected through a return spring 18. The wire rod passes through the feeding hole 13 and the round cutter 2 longitudinally, and abuts against the swing arm 17, the shearing mechanism moves transversely to cut off the wire rod to obtain a blank, the swing arm 17 swings, the travel switch 16 senses the transverse movement of the blank, and the swing arm 17 is reset under the action of the return spring 18 after the blank is separated from the swing arm 17.

[0026] The rack 1 is also provided with a pushing hole 19 matched with the round cutter 2, the pushing hole 19 is located on the transverse feeding side of the feeding hole 13, the shearing rod drives the round cutter 2 to move transversely and reciprocally at the feeding hole 13 and the pushing hole 19, a sliding pushing rod 20 is arranged in the pushing hole 19, the pushing rod 20 is connected with a longitudinal linear drive module, so that the pushing rod 20 longitudinally reciprocates in and out of the pushing hole 19, and the linear drive module belongs to an existing structure, which can be a telescopic hydraulic cylinder, a telescopic air cylinder or a linkage type linear drive and the like.

[0027] As shown in Figure 1 and 2 , the feeding mechanism includes a transversely sliding feeding rod 21, a pneumatic gripper 22 is arranged on the feeding rod 21, and the pneumatic gripper 22 is located on the side of the round cutter 2 away from the pushing hole 19. When the cutting tool drives the blank to move to the pushing hole 19, the pneumatic gripper 22 clamps the blank, the pushing rod 20 longitudinally moves out of the pushing hole 19, and pushes the blank away from the round cutter 2, so as to facilitate the pneumatic gripper 22 to clamp the blank to feed to the cold heading mechanism. A transverse limiting rod 23 is fixed on the swing arm 17, the limiting rod 23 extends to the pushing hole 19, and the limiting rod 23 is used to limit the longitudinal pushing distance of the blank, so as to avoid the blank from falling off the pneumatic gripper 22.

[0028] As shown in Figure 6 , the rack 1 is also provided with a driving arm 10, one end of the driving arm 10 is connected with the swing cylinder 11, and the other end is provided with a strip-shaped hole, the strip-shaped hole is hinged with the feeding rod 21, the feeding rod 21 is driven to swing transversely and reciprocally through the swing cylinder 11 and the driving arm 10, and transverse telescopic guide rods 12 are connected between the two sides of the feeding rod 21 and the rack 1, so as to ensure the transverse linear motion of the feeding rod 21.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shearing and feeding mechanism, comprising a frame, a feeding mechanism and a shearing mechanism provided on the frame, the shearing mechanism comprising a shearing rod capable of transverse reciprocating motion, characterized in that: A detachable circular cutter is provided on the shear rod, a longitudinal feeding hole is provided on the frame on one side of the circular cutter, and a fixed length component is provided on the frame on the other side. The fixed length component includes a connecting seat with adjustable longitudinal position, a travel switch is fixed on the connecting seat, and the swing arm of the travel switch is arranged longitudinally and opposite to the feeding hole. A reset spring is provided between the frame and the swing arm.

2. A shear feeding mechanism according to claim 1, characterized in that: The circular cutter includes an annular cutter seat, a positioning ring is provided on the outer side of the annular cutter seat, an annular tungsten steel cutter is provided on the inner side of the annular cutter seat, and the inner hole of the tungsten steel cutter corresponds to the feeding hole.

3. A shear feeding mechanism according to claim 2, characterized in that: The shear rod includes a transverse main rod and an end head, which are detachably connected to each other by bolts. The connecting surfaces of the transverse main rod and the end head are provided with a positioning groove that cooperates with the outer side of the annular knife seat, and the positioning groove is provided with a groove that cooperates with the positioning ring.

4. A shear feeding mechanism according to claim 1, characterized in that: The frame is also provided with a push hole that cooperates with the circular cutter. The push hole is located on the feed side of the loading hole. A push rod that moves back and forth longitudinally is provided in the push hole. The feeding mechanism includes a feed rod that moves back and forth laterally. A pneumatic clamp is provided on the feed rod. The pneumatic clamp is located on the side of the circular cutter away from the push hole.

5. A shear feeding mechanism according to claim 1, characterized in that: The connecting seat is connected to the frame through a longitudinal screw rod. One end of the longitudinal screw rod is fixedly connected to the frame, and the other end slides through the connecting seat. Lock nuts are screwed on the longitudinal screw rods on both sides of the connecting seat.

6. A shear feeding mechanism according to claim 3, characterized in that: A transverse push groove is provided at the positioning groove of the transverse main rod. The transverse push groove is located at a side of the positioning groove away from the end head, and the transverse push groove is communicated with the positioning groove.

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