Blanking and cutting equipment for cold shrink pipe

Abstract

The invention relates to the technical field of cold shrink pipe machining, in particular to cold shrink pipe blanking and cutting equipment which comprises a workbench, a guide ring used for allowing a raw material pipe to penetrate through is fixedly arranged on the workbench, a support is further fixedly arranged on the workbench, and a cutting area used for cutting the raw material pipe is reserved between the support and the workbench. A cutter is arranged in the cutting area in the height direction of the workbench in a sliding mode, a first electric push rod is fixedly arranged on the support, and the output end of the first electric push rod is fixedly connected with the cutter. A movable table is slidably arranged on the workbench in the length direction, the movable table can pass through a cutting area, a second electric push rod is fixedly arranged on the workbench, and the output end of the second electric push rod is fixedly connected with the movable table; and a group of movable clamping petals are symmetrically arranged on the movable table in a sliding manner. The device has the effects of reducing the labor intensity of workers, reducing the production risk, improving the machining efficiency and improving the product quality.

Description

Technical Field

[0001] The present application relates to the technical field of cold shrink tube processing, and in particular to a cold shrink tube blanking and cutting device. Background Art

[0002] Cold shrink tubing is widely used in the fields of electricity, communications, etc. It is a key material for protecting the joints of power equipment. The processing quality of cold shrink tubing directly affects the performance and service life of the product. In recent years, with the rapid development of the power industry, the demand for cold shrink tubing has continued to increase, and at the same time, higher requirements have been placed on processing accuracy and efficiency. In the processing of cold shrink tubing, it is necessary to cut the long section of cold shrink tubing (i.e. raw material tube) into multiple short sections of cold shrink tubing (i.e. finished product tube).

[0003] At present, the cutting of raw material tubes mostly relies on manual operation. Workers are required to feed the raw material tubes under the cutting knife of the cutting equipment and drive the cutting knife of the cutting equipment to cut. The cold shrink tube separated from the raw material tube by the cutter is the finished tube. This process is repeated many times to cut the raw material tube into multiple finished tubes.

[0004] In the process of implementing this application, it was found that there are at least the following problems in this technology: the manual cutting of cold shrink tubes is labor-intensive for workers and requires workers to move their hands near the cutter, which is risky in the production process and has low processing efficiency. In addition, manual cutting relies on manual experience, and it is difficult to ensure the length and flatness of the cut finished tube, which affects product quality. Summary of the invention

[0005] In order to reduce the labor intensity of workers, reduce production risks, improve processing efficiency, and improve product quality, the present application provides a cold shrink tube blanking and cutting device.

[0006] The present application provides a cold shrink tube cutting device that adopts the following technical solution: A cold shrink tube blanking and cutting equipment comprises a workbench, wherein a guide ring for allowing a raw material tube to pass through is fixedly arranged on the workbench, and the axis of the guide ring is parallel to the length direction of the workbench; a bracket is also fixedly arranged on the workbench, and a cutting area for cutting the raw material tube is reserved between the bracket and the workbench, and a cutter is slidably arranged in the cutting area along the height direction of the workbench, and a first electric push rod is fixedly arranged on the bracket, and an output end of the first electric push rod is fixedly connected to the cutter; a movable table is slidably arranged along the length direction on the workbench, and the movable table can pass through the cutting area, and a second electric push rod is fixedly arranged on the workbench, and an output end of the second electric push rod is fixedly connected to the movable table; the movable table is symmetrical in the width direction of the workbench and a group of movable clamping petals are slidably arranged, and a clamping and placing mechanism is also arranged on the movable table, and the clamping and placing mechanism is used to drive a group of movable clamping petals to approach or move away from each other, and the axis of the guide ring is located on the symmetry plane of a group of movable clamping petals.

[0007] By adopting the above technical solution, when cutting the raw material tube, one end of the raw material tube is passed through the guide ring and pulled onto the movable table, and the clamping mechanism drives the movable clamping petals to approach each other, and a group of movable clamping petals clamp the end of the raw material tube together. Subsequently, the second electric push rod is started, and the movable table is pushed to move a certain distance away from the guide hole and then stops. In this process, the movable table pulls the end of the raw material tube through the cutting area so that the raw material tube is located directly below the cutter. Among them, the distance of controlling the movement of the movable table is determined by the required length of the finished tube, thereby controlling the length of each cutting. Then, the first electric push rod is started, and the cutter is driven to slide downward along the height direction of the workbench to cut the raw material tube. At this time, the part of the cold shrink tube clamped by the movable clamping petals is separated from the raw material tube and becomes a finished tube. After the cutting is completed, the first electric push rod drives the cutter to rise and reset. The second electric push rod is activated again, and the movable table continues to move a certain distance, so that the finished tube is away from the cutter. Then, the clamping mechanism drives the movable clamping petals to move away from each other, releases the finished tube, and the finished tube automatically falls under the action of gravity. Finally, the second electric push rod drives the movable table to reset, and the movable clamping flap clamps the end of the raw material tube again, and reciprocates. Compared with manual cutting, this equipment does not need to manually push the raw material tube near the cutter, reducing the labor intensity and production risks of workers. In addition, this equipment uses the precise displacement control of the electric push rod to ensure that the length of the cut finished tube is consistent, improve product quality, and improve processing efficiency.

[0008] Preferably, a fixed support flap is fixedly provided on the workbench, a floating pressure flap is provided above the fixed support flap, the floating pressure flap can slide along the height direction of the workbench, and the floating pressure flap is connected to a pre-clamping component for driving the floating pressure flap to slide.

[0009] By adopting the above technical solution, before the cutter cuts the raw material tube, the pre-clamping assembly drives the floating pressure flap to approach the fixed support flap along the height direction of the workbench, so that the fixed support flap and the floating pressure flap jointly pre-clamp the raw material tube. In this way, during the cutting process, the raw material tube is constrained by the fixed support flap and the floating pressure flap on one side of the cutting area, and by a group of movable clamping flaps on the other side of the cutting area, so as to avoid shaking or displacement of the raw material tube during cutting as much as possible, and further ensure the flatness of the cutting and the length accuracy of the short section of the finished tube. When the raw material tube is pulled to move, the pre-clamping assembly controls the floating pressure flap to rise, releases the clamping state of the raw material tube, and does not hinder the movable table from driving the raw material tube to move.

[0010] Preferably, the pre-clamping assembly includes a movable plate, a floating plate, and a force transmission spring. The movable plate is fixedly connected to the output end of the first electric push rod, the floating plate is located below the movable plate, the floating pressure flap is fixedly connected to the floating plate, one end of the force transmission spring is fixedly connected to the floating plate, and the other end of the force transmission spring is fixedly connected to the movable plate.

[0011] By adopting the above technical solution, when the first electric push rod starts and drives the cutter downward, the movable plate fixedly connected to the output end of the first electric push rod moves downward synchronously. Since one end of the force transmission spring is fixed to the movable plate and the other end is fixed to the floating plate, and the floating pressure flap is connected to the floating plate, when the movable plate moves downward, the floating plate and the floating pressure flap are pushed downward by the force transmission spring, so that the fixed support flap and the floating pressure flap pre-clamp the raw material tube. As the cutter continues to move downward, the floating pressure flap is subjected to the upward reaction force of the fixed support flap. At this time, the force transmission spring undergoes elastic deformation, and when the floating plate cannot continue to move, the cutter is allowed to move downward alone to cut the raw material tube. In this way, automatic control of the pre-clamping and loosening of the raw material tube is realized, without the need for an additional driving device, and the equipment structure is simplified. On the other hand, when the cutter moves downward, the floating pressure flap will inevitably clamp the raw material tube together with the fixed support flap to prevent the raw material tube in the moving state from being cut by the cutter, further improving the safety of the production process.

[0012] Preferably, the pre-clamping assembly also includes a fixed plate, a guide cylinder, and a guide rod. The fixed plate is fixedly connected to the bracket, the fixed plate is located below the floating plate, the guide rod is fixedly arranged at the bottom of the floating plate and extends downward, the guide cylinder is fixedly arranged at the top of the fixed plate and extends upward, the guide rod extends into the guide cylinder, and the guide rod and the guide cylinder are slidably matched.

[0013] By adopting the above technical solution, the cooperation between the guide rod and the guide cylinder provides a guide for the upward and downward sliding of the floating plate. During the operation of the pre-clamping assembly, when the movable plate drives the floating plate to move downward, the guide rod slides downward along the inner wall of the guide cylinder, ensuring that the floating plate can move in the direction of the fixed support flap, and minimizing the displacement or shaking of the floating plate during the movement.

[0014] Preferably, a receiving groove is provided on the upper surface of the workbench just below the cutter, and a cutting support is arranged in the receiving groove. The cutting support can slide along the height direction of the workbench and extend out of the receiving groove. A lifting mechanism for driving the cutting support to slide is arranged on the workbench, and a cutting groove adapted to the cutter is provided on the upper surface of the cutting support.

[0015] By adopting the above technical solution, before cutting the raw material tube, the lifting mechanism is activated to drive the cutting platform to extend from the receiving groove and rise to the bottom of the raw material tube. Since the upper surface of the cutting platform is provided with a cutting groove adapted to the cutter, when the cutter descends to cut the raw material tube, the blade of the cutter can be embedded in the cutting groove to ensure that the raw material tube can be completely cut off. In addition, since the cold shrink tube has a deformable characteristic, the cutting platform provides a bearing base for the raw material tube when it is cut, preventing the raw material tube from deforming when being cut, resulting in a decrease in the flatness of the cut.

[0016] Preferably, the lifting mechanism includes a first rack, a second rack, and an intermediate gear. The first rack and the second rack are parallel to the height direction of the workbench. The first rack is fixedly connected to the floating plate, the second rack is fixedly connected to the cutting support, and the intermediate gear is rotatably connected to the workbench. The first rack is meshed with one side of the intermediate gear, and the second rack is meshed with the other side of the intermediate gear.

[0017] By adopting the above technical solution, when the first electric push rod drives the movable plate and the floating plate downward, the first rack fixedly connected to the floating plate moves downward synchronously. The first rack meshes with one side of the intermediate gear and drives the intermediate gear to rotate; and because the second rack meshes with the other side of the intermediate gear, the rotation of the intermediate gear drives the second rack to move upward, thereby driving the cutting bracket to extend from the receiving groove. In this process, the rising action of the cutting bracket is synchronized with the action of the floating pressure flap descending to pre-clamp the raw material tube, and the action is completed and stopped before the cutter begins to contact the raw material tube. No additional driving components are required to control the lifting and lowering of the cutting bracket, thereby reducing the manufacturing cost of the equipment.

[0018] Preferably, the clamping mechanism includes a screw, a sliding block, and a rotating assembly. The movable table is provided with a sliding groove along the width direction of the workbench. The sliding blocks are symmetrical and slide in a group in the sliding groove, one of which is fixedly connected to one of the sliding blocks, and the other is fixedly connected to the other sliding block; the screw rotates in the sliding groove, and a group of threaded segments with equal pitch and opposite rotation direction are provided on the screw, one of which is threadedly connected to one of the sliding blocks, and the other is threadedly connected to the other sliding block. The rotating assembly is used to drive the screw to rotate.

[0019] By adopting the above technical solution, when the screw is driven to rotate, the rotation of the screw will cause the two sliding blocks to move closer to or farther from each other in the sliding groove along the width direction of the worktable. The movable clamping petal fixedly connected to the sliding block will move synchronously with the sliding block, thereby realizing the clamping or loosening operation of the raw material tube.

[0020] Preferably, the rotating assembly includes a pushing rod and a shifting rod, the end of the screw rod passes through the outer wall of the movable table, the shifting rod is fixedly connected to the end of the screw rod and extends along the radius of the screw rod in a direction away from the screw rod; the number of the pushing rods is two, and both are fixedly connected to the workbench; in the length direction of the workbench, the cutter is located between the two pushing rods; one of the pushing rods can be abutted against one side wall of the shifting rod, and the other pushing rod can be abutted against the other side of the shifting rod.

[0021] By adopting the above technical solution, when the movable table moves to the side of the cutting area close to the guide ring, the movable table drives the lever to abut against one of the push rods. As the movable table continues to slide, one side of the lever is abutted by one of the push rods and cannot move directly. At this time, the sliding of the movable table forces the lever to drive the screw rod to rotate, so that a group of movable clamps approach each other and grab one end of the raw material tube. When the cutting is completed, the second electric push rod moves again to push the movable table to continue to move away from the guide ring. At this time, the lever moves with the movable table and abuts against another push rod. Similarly, since one side of the lever is abutted, the continued movement of the movable table prompts the lever to drive the screw rod to rotate in the opposite direction, so that a group of movable clamps move away from each other, release the finished product tube that has been cut, and the finished product tube automatically falls under the action of gravity. In this way, the automatic clamping of the raw material tube and the automatic release of the finished product tube are completed.

[0022] Preferably, a control console is further provided on the workbench, and the control console is electrically connected to the first electric push rod and the second electric push rod.

[0023] By adopting the above technical solution, after the first electric push rod and the second electric push rod are electrically connected, the operator can conveniently and accurately control the first electric push rod and the second electric push rod through the console. For example, when cutting finished pipes of different lengths, the operator can set the moving distance of the second electric push rod on the console to control the length of the finished pipe cut each time.

[0024] Preferably, a rubber pad is provided on the inner wall of the guide ring.

[0025] By adopting the above technical solution, the rubber pad helps to prevent scratches on the raw material tube when passing through the guide ring, further ensuring the quality of the final finished tube. On the other hand, it helps to increase the friction force when the raw material tube passes through, hindering the movement of the raw material tube, so that when the raw material tube is pulled by the movable table, the raw material tube will be in a straightened state, further ensuring the length of the finished tube.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up a workbench, a guide ring, a bracket, a cutter, a first electric push rod, a movable table, a second electric push rod, a movable clamping flap, and a clamping and placing mechanism, there is no need for frequent manual operations near the cutter, which reduces labor intensity and production risks. The electric push rod accurately controls the movement of the movable table to ensure that the length of the finished pipe is consistent, thereby improving processing accuracy and efficiency. 2. By setting fixed flaps, floating pressure flaps, movable plates, floating plates and force transmission springs, the raw material tube is automatically clamped before cutting to avoid shaking and displacement of the raw material tube when being cut, ensuring the cutting flatness and length accuracy of the finished tube; 3. By setting the floating plate, the receiving groove, the cutting support, the cutting groove, the first rack, the second rack and the intermediate gear, the cutting support automatically rises before cutting the raw material tube to prevent the raw material tube from being overly compressed and deformed when being cut, thereby ensuring the cutting quality. After the cutter is raised, the cutting support automatically retracts to the cutting support without hindering the movable table from passing through the cutting area; 4. By setting the screw rod, sliding block, sliding groove, pushing rod and lever, when the movable table moves, the pushing rod and the lever are against each other to make the screw rod rotate, driving the moving clamp to clamp or release the raw material tube and the finished product tube, realizing automatic clamping and releasing, without the need for additional power source, and improving the degree of automation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a cold shrink tube blanking and cutting device provided in an embodiment of the present application.

[0028] Figure 2 yes Figure 1 Enlarged view of part A.

[0029] Figure 3 yes Figure 1 Enlarged view of part B Figure 4 It is a structural schematic diagram of the movable platform in the embodiment of the present application.

[0030] Explanation of the reference numerals: 1. workbench; 11. guide ring; 12. bracket; 13. first electric push rod; 14. second electric push rod; 15. fixed support flap; 16. accommodating groove; 161. cutting support platform; 1611. cutting groove; 17. control console; 2. cutter; 3. movable platform; 31. movable clamping flap; 32. sliding groove; 4. clamping and releasing mechanism; 41. screw rod; 42. sliding block; 43. rotating assembly; 431. pushing rod; 432. lever; 5. pre-clamping assembly; 51. movable plate; 52. floating plate; 521. guide rod; 522. floating pressure flap; 53. force transmission spring; 54. fixed plate; 541. guide cylinder; 6. lifting mechanism; 61. first rack; 62. second rack; 63. intermediate gear. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] The present application embodiment discloses a cold shrink tube blanking and cutting device. Figure 1 The invention comprises a workbench 1, one end of which is rotatably provided with a winding wheel wound with a raw material tube, and the other end of the workbench 1 is provided with a chute for collecting finished product tubes. A guide ring 11 for the raw material tube to pass through is fixedly provided on the upper surface of the workbench 1, and the axis of the guide ring 11 is parallel to the length direction of the workbench 1. A rubber pad is provided on the inner wall of the guide ring 11, and the rubber pad is used to increase the friction force when the raw material tube passes through the guide ring 11.

[0033] Reference Figure 1 and Figure 2 A bracket 12 is also fixedly arranged on the workbench 1, and the bracket 12 is located on the side of the guide ring 11 away from the winding wheel. The bracket 12 is composed of two side panels vertically fixed on the upper surface of the workbench 1, and a top panel fixed on the top of the two side panels. A cutting area for cutting the raw material tube is reserved between the top panel of the bracket 12 and the upper surface of the workbench 1. A cutter 2 is slidably arranged in the cutting area along the height direction of the workbench 1, and a first electric push rod 13 is fixedly arranged on the top panel of the bracket 12, and the output end of the first electric push rod 13 is fixedly connected to the cutter 2.

[0034] Reference Figure 1 and Figure 3 A movable table 3 is slidably provided on the workbench 1 along the length direction, and the movable table 3 can pass through the cutting area. A second electric push rod 14 is fixedly provided on the workbench 1, and the output end of the second electric push rod 14 is fixedly connected to the movable table 3. The movable table 3 is symmetrical in the width direction of the workbench 1 and is slidably provided with a group of movable clamping petals 31. The movable table 3 is also provided with a clamping and placing mechanism 4, which is used to drive a group of movable clamping petals 31 to move closer to or away from each other, and the axis of the guide ring 11 is located on the symmetric plane of a group of movable clamping petals 31.

[0035] Reference Figure 1 A control console 17 is also provided on the side wall of the workbench 1, and the control console 17 is electrically connected to the first electric push rod 13 and the second electric push rod 14. Specifically, a PLC controller is built in the control console 17, and the first electric push rod 13 and the second electric push rod 14 are controlled by the program of the PLC controller.

[0036] Reference Figure 1 Before cutting the raw material tube, first input the length of the finished tube to be cut in the console 17. The console 17 controls the first electric push rod 13 and the second electric push rod 14 to automatically move. In the initial state of the equipment, the movable table 3 should be located on the side of the cutting area close to the guide ring 11. When cutting the raw material tube, one end of the raw material tube passes through the guide ring 11, and the end of the raw material tube is aligned with the cutter 2 in the height direction of the workbench 1 (that is, the incision position after cutting). Then, the movable clamping flaps 31 approach each other under the action of the clamping mechanism 4 and clamp the end of the raw material tube. Subsequently, the second electric push rod 14 drives the movable table 3 to move away from the guide hole, and the distance moved by the movable table 3 is equivalent to the length of a finished tube. In this process, the movable table 3 pulls the end of the raw material tube through the cutting area so that the raw material tube is located directly below the cutter 2. Then, the console 17 controls the first electric push rod 13 to move, so that the cutter 2 slides downward to cut the raw material tube. The part of the cold shrink tube clamped by the movable clamping flap 31 is separated from the raw material tube and becomes a finished tube.

[0037] Reference Figure 1 After the cutting is completed, the first electric push rod 13 drives the cutter 2 to rise and reset. The second electric push rod 14 drives the movable table 3 to move a distance again, so that the finished tube is above the drop chute. Then, the clamping mechanism 4 drives the movable clamping flaps 31 to move away from each other, releases the finished tube, and the finished tube automatically falls under the action of gravity. Finally, the second electric push rod 14 drives the movable table 3 to reset, and the clamping mechanism 4 drives the movable clamping flaps 31 to clamp the end of the raw material tube again, and this reciprocating process is repeated.

[0038] In order to prevent the raw material tube from running when cutting, refer to Figure 2 A fixed flap 15 is fixedly arranged on the workbench 1, and the fixed flap 15 is located between the guide ring 11 and the bracket 12. A floating pressure flap 522 is arranged above the fixed flap 15, and the floating pressure flap 522 can slide along the height direction of the workbench 1.

[0039] Reference Figure 2, the floating pressure flap 522 is connected with a pre-clamping assembly 5 for driving the floating pressure flap 522 to slide. Specifically, the pre-clamping assembly 5 includes a movable plate 51, a floating plate 52, a force transmission spring 53, a fixed plate 54, a guide cylinder 541, and a guide rod 521. The movable plate 51 is fixedly connected to the output end of the first electric push rod 13, the floating plate 52 is located below the movable plate 51, the floating pressure flap 522 is fixedly connected to the floating plate 52, one end of the force transmission spring 53 is fixedly connected to the floating plate 52, and the other end of the force transmission spring 53 is fixedly connected to the movable plate 51. The fixed plate 54 is fixedly connected to the side plate in the bracket 12, the fixed plate 54 is located below the floating plate 52, the guide rod 521 is fixedly arranged at the bottom of the floating plate 52 and extends downward, the guide cylinder 541 is fixedly arranged at the top of the fixed plate 54 and extends upward, the guide rod 521 extends into the guide cylinder 541, and the guide rod 521 and the guide cylinder 541 are slidably matched. In addition, the bottom of the floating plate 52 can abut against the top of the guide cylinder 541 , and when the bottom of the floating plate 52 abuts against the top of the guide cylinder 541 , the floating pressure flap 522 and the fixed support flap 15 clamp the raw material tube together.

[0040] Reference Figure 2 When the first electric push rod 13 starts and drives the cutter 2 downward, the movable plate 51 moves downward synchronously. When the movable plate 51 moves downward, the force transmission spring 53 pushes the floating plate 52 and the floating pressure flap 522 downward, so that the fixed support flap 15 and the floating pressure flap 522 pre-clamp the raw material tube. At this time, the floating plate 52 abuts against the top of the guide cylinder 541. As the cutter 2 continues to move downward, the floating plate 52 is abutted by the guide cylinder 541 and cannot move further. At this time, the force transmission spring 53 is deformed, so that the cutter 2 can move downward alone to cut the raw material tube. In this way, when the cutter 2 moves downward, the floating pressure flap 522 will inevitably clamp the raw material tube together with the fixed support flap 15 to prevent the raw material tube from running.

[0041] In order to improve the flatness of the finished tube cut, refer to Figure 2 A receiving groove 16 is provided on the upper surface of the workbench 1 just below the cutter 2, and a cutting support 161 is arranged in the receiving groove 16. The cutting support 161 can slide along the height direction of the workbench 1 and extend out of the receiving groove 16. A lifting mechanism 6 for driving the cutting support 161 to slide is provided on the workbench 1, and a cutting groove 1611 adapted to the cutter 2 is provided on the upper surface of the cutting support 161.

[0042] Specifically, refer to Figure 2The lifting mechanism 6 includes a first rack 61, a second rack 62, an intermediate gear 63, and a restraining frame. The restraining frame is fixedly connected to the workbench 1. The first rack 61 and the second rack 62 are parallel to the height direction of the workbench 1 and slide in the restraining frame along the height direction of the workbench 1. The first rack 61 is fixedly connected to the floating plate 52, and the second rack 62 is fixedly connected to the cutting support 161. The intermediate gear 63 is rotatably connected to the restraining frame on the workbench 1, and the first rack 61 is meshed with one side of the intermediate gear 63, and the second rack 62 is meshed with the other side of the intermediate gear 63.

[0043] Reference Figure 2 When the first electric push rod 13 drives the movable plate 51 and the floating plate 52 downward, the first rack 61 fixedly connected to the floating plate 52 moves downward synchronously. The first rack 61 drives the intermediate gear 63 to rotate, and the rotation of the intermediate gear 63 drives the second rack 62 to move upward, thereby driving the cutting bracket 161 to extend from the receiving groove 16. In this process, the rising action of the cutting bracket 161 is synchronized with the action of the floating pressure flap 522 descending to pre-clamp the raw material pipe, and the action is completed and stopped before the cutter 2 begins to contact the raw material pipe. At this time, the cutting bracket 161 is located below the raw material pipe to support the raw material pipe. Preventing the raw material pipe from being stretched and deformed when being cut, thereby improving the flatness of the cut of the finished pipe.

[0044] In order to facilitate driving the movable clamping flaps 31 to automatically move closer to or away from each other, refer to Figure 1 and Figure 4 The clamping mechanism 4 includes a screw 41, a sliding block 42, and a rotating assembly 43. The movable table 3 is provided with a sliding groove 32 along the width direction of the workbench 1. The sliding blocks 42 are symmetrical and slide in the sliding groove 32. There is a group of movable clamping petals 31 fixedly connected to one of the sliding blocks 42, and the other movable clamping petals 31 are fixedly connected to the other sliding block 42. The screw 41 rotates in the sliding groove 32. The screw 41 is provided with a group of thread segments with equal pitch and opposite rotation direction. One thread segment is threadedly connected to one of the sliding blocks 42, and the other thread segment is threadedly connected to the other sliding block 42.

[0045] Reference Figure 1 and Figure 4 , the rotating assembly 43 is used to drive the screw 41 to rotate. Specifically, the rotating assembly 43 includes a push rod 431 and a lever 432. The end of the screw 41 passes through the outer wall of the movable table 3. The lever 432 is fixedly connected to the end of the screw 41 and extends along the radius of the screw 41 in a direction away from the screw 41. There are two push rods 431, and both are fixedly connected to the workbench 1. In the length direction of the workbench 1, the cutter 2 is located between the two push rods 431, one of which can be against one side wall of the lever 432, and the other push rod 431 can be against the other side of the lever 432.

[0046] Reference Figure 1 and Figure 4 When the movable table 3 moves to the side of the cutting area close to the guide ring 11, the movable table 3 drives the lever 432 to abut against one of the push rods 431. As the movable table 3 continues to slide, one side of the lever 432 is abutted by one of the push rods 431 and cannot move directly. At this time, the sliding of the movable table 3 forces the lever 432 to drive the screw 41 to rotate, so that a group of movable clamping petals 31 approach each other and grab one end of the raw material tube. When the cutting is completed, the second electric push rod 14 moves again to push the movable table 3 to continue to move away from the guide ring 11. At this time, the lever 432 moves with the movable table 3 and abuts against another push rod 431. Similarly, since one side of the lever 432 is abutted, the continued movement of the movable table 3 prompts the lever 432 to drive the screw 41 to rotate in the opposite direction, so that a group of movable clamping petals 31 move away from each other, release the finished tube that has been cut, and the finished tube automatically falls under the action of gravity. In this way, the automatic clamping of the raw material tube and the automatic release of the finished tube are completed.

[0047] The implementation principle of a cold shrink tube blanking and cutting device in the embodiment of the present application is as follows: before cutting the raw material tube, the raw material tube is led out from the winding wheel, passes through the guide ring 11, and the end of the raw material tube is aligned with the cutter 2 in the height direction of the workbench 1. In the cutting process, the movable table 3 moves to the cutting area close to the guide ring 11 side, and after the lever 432 abuts against one of the push rods 431, it drives the screw 41 to rotate, so that the movable clamp 31 clamps the end of the raw material tube. Then, the second electric push rod 14 pushes the movable table 3, pulling the raw material tube to pass directly under the cutter 2. After that, the first electric push rod 13 drives the cutter 2 downward; in this process, the movable plate 51 moves downward synchronously, and pushes the floating plate 52 and the floating pressure flap 522 downward through the force transmission spring 53, and the fixed support flap 15 and the floating pressure flap 522 pre-clamp the raw material tube, and the floating plate 52 abuts against the top of the guide cylinder 541. At the same time, the first rack 61 drives the second rack 62 to move upward through the intermediate gear 63, and the cutting support 161 extends from the receiving groove 16 to hold the raw material tube. As the cutter 2 continues to move downward, the floating plate 52 is supported by the guide cylinder 541 and cannot move further, and the force transmission spring 53 is deformed, so that the cutter 2 can move downward alone to cut the raw material tube and separate the finished tube from the raw material tube.

[0048] After the cutting is completed, the first electric push rod 13 drives the cutter 2 to rise and reset. The second electric push rod 14 pushes the movable table 3 to continue moving, so that the finished tube is located above the blanking trough, the lever 432 abuts against the other push rod 431, the screw 41 rotates in the opposite direction, and the movable clamp 31 releases the finished tube, so that the finished tube falls into the blanking trough. Subsequently, the second electric push rod 14 drives the movable table 3 to reset, and the movable clamp 31 clamps the end of the raw material tube again, and the above steps are repeated continuously to realize the continuous automatic cutting of the cold shrink tube. In this way, the labor intensity of workers is reduced, the production risk is reduced, the processing efficiency is improved, and the product quality is improved. The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cold shrink tube blanking and cutting device, comprising a workbench (1), characterized in that: The workbench (1) is fixedly provided with a guide ring (11) for allowing the raw material tube to pass through, and the axis of the guide ring (11) is parallel to the length direction of the workbench (1); the workbench (1) is also fixedly provided with a bracket (12), and a cutting area for cutting the raw material tube is reserved between the bracket (12) and the workbench (1), and a cutter (2) is slidably arranged in the cutting area along the height direction of the workbench (1); a first electric push rod (13) is fixedly provided on the bracket (12), and the output end of the first electric push rod (13) is fixedly connected to the cutter (2); the workbench (1) is provided with a guide ring (11) for allowing the raw material tube to pass through, and the axis of the guide ring (11) is parallel to the length direction of the workbench (1); A movable table (3) is provided for sliding in the direction, and the movable table (3) can pass through the cutting area. A second electric push rod (14) is fixedly provided on the workbench (1), and the output end of the second electric push rod (14) is fixedly connected to the movable table (3); the movable table (3) is symmetrical in the width direction of the workbench (1) and is provided with a group of movable clamping petals (31) for sliding. A clamping mechanism (4) is also provided on the movable table (3), and the clamping mechanism (4) is used to drive the group of movable clamping petals (31) to move closer to or away from each other. The axis of the guide ring (11) is located on the symmetry plane of the group of movable clamping petals (31).

2. The cold shrink tube blanking and cutting device according to claim 1, characterized in that: A fixed flap (15) is fixedly arranged on the workbench (1), a floating pressure flap (522) is arranged above the fixed flap (15), the floating pressure flap (522) can slide along the height direction of the workbench (1), and the floating pressure flap (522) is connected to a pre-clamping component (5) for driving the floating pressure flap (522) to slide.

3. The cold shrink tube blanking and cutting device according to claim 2, characterized in that: The pre-clamping assembly (5) comprises a movable plate (51), a floating plate (52), and a force transmission spring (53); the movable plate (51) is fixedly connected to the output end of the first electric push rod (13); the floating plate (52) is located below the movable plate (51); the floating pressure flap (522) is fixedly connected to the floating plate (52); one end of the force transmission spring (53) is fixedly connected to the floating plate (52); and the other end of the force transmission spring (53) is fixedly connected to the movable plate (51).

4. The cold shrink tube blanking and cutting device according to claim 3 is characterized in that: The pre-clamping assembly (5) further comprises a fixed plate (54), a guide cylinder (541), and a guide rod (521); the fixed plate (54) is fixedly connected to the bracket (12); the fixed plate (54) is located below the floating plate (52); the guide rod (521) is fixedly arranged at the bottom of the floating plate (52) and extends downward; the guide cylinder (541) is fixedly arranged at the top of the fixed plate (54) and extends upward; the guide rod (521) extends into the guide cylinder (541); and the guide rod (521) and the guide cylinder (541) are slidably matched.

5. The cold shrink tube blanking and cutting device according to claim 3, characterized in that: The upper surface of the workbench (1) is provided with a receiving groove (16) directly below the cutting knife (2), and a cutting support (161) is arranged in the receiving groove (16). The cutting support (161) can slide along the height direction of the workbench (1) and extend out of the receiving groove (16). The workbench (1) is provided with a lifting mechanism (6) for driving the cutting support (161) to slide, and the upper surface of the cutting support (161) is provided with a cutting groove (1611) adapted to the cutting knife (2).

6. The cold shrink tube blanking and cutting device according to claim 5, characterized in that: The lifting mechanism (6) comprises a first rack (61), a second rack (62), and an intermediate gear (63); the first rack (61) and the second rack (62) are both parallel to the height direction of the workbench (1); the first rack (61) is fixedly connected to the floating plate (52); the second rack (62) is fixedly connected to the cutting support (161); the intermediate gear (63) is rotatably connected to the workbench (1); one side of the first rack (61) and the intermediate gear (63) are meshed with each other; the other side of the second rack (62) and the intermediate gear (63) are meshed with each other.

7. The cold shrink tube blanking and cutting device according to claim 1, characterized in that: The clamping mechanism (4) comprises a screw (41), a sliding block (42), and a rotating assembly (43). The movable table (3) is provided with a sliding groove (32) along the width direction of the workbench (1). The sliding blocks (42) are symmetrical and slide in a group in the sliding groove (32), wherein one of the movable clamping petals (31) is fixedly connected to one of the sliding blocks (42), and the other of the movable clamping petals (31) is fixedly connected to the other of the sliding blocks (42); the screw (41) rotates in the sliding groove (32), and a group of threaded segments with equal pitch and opposite rotation direction are provided on the screw (41), wherein one of the threaded segments is threadedly connected to one of the sliding blocks (42), and the other of the threaded segments is threadedly connected to the other of the sliding blocks (42); the rotating assembly (43) is used to drive the screw (41) to rotate.

8. The cold shrink tube blanking and cutting device according to claim 7, characterized in that: The rotating assembly (43) comprises a pushing rod (431) and a shifting rod (432); the end of the screw rod (41) passes through the outer wall of the movable platform (3); the shifting rod (432) is fixedly connected to the end of the screw rod (41) and extends along the radius of the screw rod (41) in a direction away from the screw rod (41); two pushing rods (431) are provided, and both are fixedly connected to the workbench (1); in the length direction of the workbench (1), the cutter (2) is located between the two pushing rods (431); one of the pushing rods (431) can abut against one side wall of the shifting rod (432), and the other pushing rod (431) can abut against the other side of the shifting rod (432).

9. The cold shrink tube blanking and cutting device according to claim 1, characterized in that: The workbench (1) is also provided with a control console (17), and the control console (17) is electrically connected to the first electric push rod (13) and the second electric push rod (14).

10. The cold shrink tube blanking and cutting device according to claim 1, characterized in that: A rubber pad is provided on the inner wall of the guide ring (11).

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