Rear-end material pulling mechanism

Abstract

The utility model belongs to the field of guide wire bending machining, and particularly relates to a rear end material pulling mechanism which comprises a supporting body. A pulling path is arranged on the first movement guide rail, and the two ends of the pulling path are a pulling starting point and a pulling ending point respectively; the rear end clamping assembly is used for clamping the rear end of the guide wire, and the rear end clamping assembly is movably arranged on the pulling path of the first movement guide rail in a reciprocating motion mode; the counterweight piece and the counterweight block are connected with the rear end clamping assembly through a connecting line; and the reset assembly is arranged on the supporting body. The device can be used for repeatedly tightening and pulling the guide wire, so that the front end of the guide wire wound at the external bending position is quickly bent and shaped, the bending speed of the front end of the guide wire is effectively increased, and the processing efficiency is improved; and the stroke of the clamping assembly at the rear end can be always kept on a preset pulling path, so that the machining process is more stable and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of wire bending processing, and specifically relates to a rear-end material pulling mechanism. Background Technology

[0002] J-shaped guidewires are widely used medical devices in the medical field. Their most distinctive feature is the J-shaped bend at the tip, a unique design that provides better maneuverability and adaptability during operation. In traditional J-shaped guidewire manufacturing, the bending of the tip is often done manually, which is inefficient, costly, and results in inconsistent product quality.

[0003] To address this problem, a prior patent provides a guide wire bending device (application number CN202120325668.9). The device comprises a head fixing mechanism for fixing the guide wire tip, a pulling mechanism for fixing the guide wire and cooperating with the head fixing mechanism to tighten the guide wire, and a bending mechanism for bending the guide wire tip. The pulling mechanism has a pulling fixing position for fixing the guide wire, the head fixing mechanism has a head fixing position for fixing the guide wire tip, and the bending mechanism has a bending position for abutting against the guide wire to cooperate with the pulling mechanism and the head fixing mechanism to bend the guide wire tip. The shape formed by the head fixing position, bending position, and pulling fixing position is triangular. This prior patent provides a guide wire bending device that can automatically bend the guide wire tip, which is more efficient and lower in labor costs compared to manual operation.

[0004] However, this type of guide wire bending device still has defects: when the guide wire is bent, the head of the guide wire is fixed by the head fixing mechanism, and then the guide wire is passed around the bending mechanism and clamped by the pulling mechanism and given a certain tension. By maintaining the tension, the guide wire is kept taut for a period of time to achieve its head bending. This bending process takes a long time and is inefficient. Utility Model Content

[0005] To address the aforementioned problems, the present invention aims to provide a rear-end pulling mechanism. After clamping the rear end of the guide wire, this pulling mechanism can cooperate with an external front-end clamping structure to reciprocate and pull the guide wire, thereby accelerating the bending speed of the guide wire's front end and improving processing efficiency.

[0006] Another objective of this invention is to provide a rear-end material pulling mechanism, which has a reset structure to ensure that the rear-end material pulling mechanism can reciprocate and pull.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows.

[0008] A rear-end material pulling mechanism, comprising:

[0009] Support structure;

[0010] A first motion guide rail is provided with a pulling path, the two ends of which are the pulling start point and the pulling end point, respectively.

[0011] A rear-end clamping assembly for clamping the rear end of the guide wire, wherein the rear-end clamping assembly is movably arranged on the pulling path of the first motion guide rail for reciprocating motion;

[0012] A counterweight that uses gravitational potential energy to pull the rear clamping assembly from the starting point to the ending point of the pull, the counterweight being connected to the rear clamping assembly via a wire;

[0013] A reset component for pushing the rear clamping assembly to the starting point of the pull, the reset component being disposed on the support.

[0014] In this rear-end pulling mechanism, the rear-end clamping component is first moved to the starting point of the pulling process by the reset component. After the rear-end clamping component clamps the rear end of the guide wire at the starting point, it moves repeatedly between the starting point and the ending point of the pulling process with the cooperation of the counterweight and the external front-end clamping structure. This tightens and repeatedly pulls the guide wire, allowing the front end of the guide wire around the external bending position to bend and shape quickly, effectively accelerating the bending speed of the guide wire front end and improving processing efficiency. In addition, thanks to the function of the reset component, the rear-end pulling mechanism can ensure that the stroke of the rear-end clamping component always stays on the predetermined pulling path when continuously bending different guide wire front ends, making the processing process more stable and reliable.

[0015] Furthermore, the rear-end clamping assembly includes a rear-end clamping claw cylinder and a cylinder mounting base. The upper end of the rear-end clamping claw cylinder is provided with a rear-end clamping position for clamping the guide wire, and the lower end of the rear-end clamping claw cylinder is fixedly mounted on the cylinder mounting base. The cylinder mounting base is movably mounted on the pulling path of the first motion guide rail.

[0016] Furthermore, the cylinder mounting base is provided with a support member that can be adjusted up and down, and the upper end of the support member is provided with a support surface for supporting the guide wire, and the support surface is located on one side of the rear clamping position.

[0017] Furthermore, the rear-end material pulling mechanism also includes a locking component. The cylinder mounting base is provided with a locking hole, and the support member is provided with an adjusting elongated hole. The adjusting elongated hole corresponds to the locking hole, and the locking component passes through the adjusting elongated hole and connects to the locking hole to lock the support member onto the cylinder mounting base.

[0018] Furthermore, the reset assembly includes a reset mounting base and a reset cylinder. The reset mounting base is fixedly mounted on the support body, and the reset cylinder is fixedly mounted on the reset mounting base. The output shaft of the reset cylinder corresponds to the rear clamping assembly.

[0019] Furthermore, the rear-end material pulling mechanism also includes a material pushing component for pushing the guide wire. The material pushing component is disposed on the support body and corresponds to the rear-end clamping component.

[0020] Furthermore, the pushing assembly includes a pushing block, a pushing drive motor, and a pushing gripper cylinder. The pushing gripper cylinder is mounted on the pushing block, and the pushing block is movably mounted on the support body. The pushing drive motor is fixedly mounted on the support body and is drivenly connected to the pushing block.

[0021] Furthermore, the pusher gripper cylinder is provided with a pusher gripping position for gripping the guide wire, the pusher block is provided with a support block, and the support block is provided with a support position for supporting the guide wire, the support position corresponding to the pusher gripping position.

[0022] Furthermore, the support position is a V-shaped groove.

[0023] Furthermore, the rear-end material pulling mechanism also includes a second motion guide rail, the material pushing assembly also includes a material pushing screw, the material pushing block is movably mounted on the second motion guide rail, and the material pushing drive motor is connected to the material pushing block via the material pushing screw.

[0024] The beneficial effects of this utility model are as follows: In the rear-end pulling mechanism, the rear-end clamping component is first pushed to the starting point of the pulling by the reset component. After the rear-end clamping component clamps the rear end of the guide wire at the starting point of the pulling, it moves repeatedly between the starting point and the ending point of the pulling with the cooperation of the counterweight and the external front-end clamping structure to tighten and repeatedly pull the guide wire, so that the front end of the guide wire around the external bending position is quickly bent and shaped, thereby effectively accelerating the bending speed of the front end of the guide wire and improving the processing efficiency. In addition, thanks to the function of the reset component, when the rear-end pulling mechanism continuously bends different front ends of the guide wire, it can ensure that the stroke of the rear-end clamping component is always kept on the predetermined pulling path, making the processing process more stable and reliable. Attached Figure Description

[0025] Figure 1 This is a structural diagram of the present invention, including the external front clamping structure and the external bending position.

[0026] Figure 2 This is a schematic diagram of the structure of this utility model.

[0027] Figure 3 This is a schematic diagram of the hidden reset component of this utility model.

[0028] Icon labels:

[0029] 1. Support structure;

[0030] 2. First motion guide rail;

[0031] 3. Rear end clamping assembly; 31. Rear end gripper cylinder; 311. Rear end clamping position; 32. Cylinder mounting base; 321. Locking hole; 33. Support component; 331. Support surface; 332. Adjustment elongated hole;

[0032] 4. Reset assembly; 41. Reset mounting base; 42. Reset cylinder;

[0033] 5. Pushing assembly; 51. Pushing block; 52. Pushing drive motor; 53. Pushing gripper cylinder; 531. Pushing clamping position; 54. Support block; 541. Supporting position; 55. Pushing screw;

[0034] 6. Second motion guide rail;

[0035] 7. External front clamping structure;

[0036] 8. External bending points. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] See Figure 1-3 This embodiment provides a rear-end material pulling mechanism, including:

[0039] Support 1;

[0040] The first motion guide rail 2 has a pulling path, with the two ends of the pulling path being the starting point and the ending point of the pulling, respectively.

[0041] The rear clamping assembly 3 is used to clamp the rear end of the guide wire. The rear clamping assembly 3 is movably set on the pulling path of the first motion guide rail 2 for reciprocating motion.

[0042] The counterweight is used to pull the rear clamping assembly 3 from the starting point to the ending point of the pull by the gravitational potential energy. The counterweight is connected to the rear clamping assembly 3 by a wire.

[0043] A reset component 4 is used to push the rear clamping component 3 to the starting point of the pull. The reset component 4 is disposed on the support body 1. Specifically, the counterweight can be a weight, and the connecting wire can be a metal wire or other wire. There is a pulley on the support body 1, and the connecting wire is wound around the pulley and connected to the suspended weight.

[0044] It should be noted that the rear-end pulling mechanism can be used in conjunction with the external front-end clamping structure 7. The rear-end pulling mechanism is used to clamp and pull the rear end of the guide wire. After the front end of the guide wire passes around the external bending position 8, it is clamped and pulled by the external front-end clamping structure 7 to complete the tensioning and repeated pulling of the guide wire, so as to effectively accelerate the bending speed of the front end of the guide wire and improve the processing efficiency.

[0045] In this embodiment, the rear-end clamping assembly 3 includes a rear-end clamping cylinder 31 and a cylinder mounting base 32. The upper end of the rear-end clamping cylinder 31 is provided with a rear-end clamping position 311 for clamping the guide wire, and the lower end of the rear-end clamping cylinder 31 is fixedly mounted on the cylinder mounting base 32. The cylinder mounting base 32 is movably mounted on the pulling path of the first motion guide rail 2, allowing it to reciprocate. The rear-end clamping cylinder 31 clamps or releases the guide wire by controlling the opening and closing of the rear-end clamping position 311.

[0046] In this embodiment, a support member 33 is vertically adjustable on the cylinder mounting base 32. The upper end of the support member 33 is provided with a support surface 331 for supporting the guide wire, and the support surface 331 is located on one side of the rear clamping position 311. The support member 33 can support the guide wire through its support surface 331; the height of the guide wire at the rear clamping position 311 can be adjusted by adjusting the height of the support member 33 on the cylinder mounting base 32.

[0047] In this embodiment, the rear-end material pulling mechanism also includes a locking component, which can preferably be a screw. The cylinder mounting base 32 has a locking hole 321, and the support member 33 has an adjusting elongated hole 332. The adjusting elongated hole 332 corresponds to the locking hole 321. The locking component passes through the adjusting elongated hole 332 and connects to the locking hole 321 to lock the support member 33 onto the cylinder mounting base 32. The adjusting elongated hole 332 can be aligned with the locking hole 321 within a certain range. Within this range, the height of the support member 33 on the cylinder mounting base 32 can be adjusted by loosening the locking component, and then the locking component can be tightened to lock the adjusted support member 33 onto the cylinder mounting base 32.

[0048] In this embodiment, the reset assembly 4 includes a reset mounting base 41 and a reset cylinder 42. The reset mounting base 41 is fixedly mounted on the support body 1, and the reset cylinder 42 is fixedly mounted on the reset mounting base 41. The output shaft of the reset cylinder 42 corresponds to the rear clamping assembly 3. The external front clamping structure 7 clamps the front end of the guide wire, while the rear clamping assembly 3 moves to the pulling point under the push of the output shaft of the reset cylinder 42 to clamp the rear end of the guide wire. At this time, the output shaft of the reset cylinder 42 can retract, so that the guide wire is tightened and repeatedly pulled under the cooperation of the counterweight and the external front clamping structure 7.

[0049] In this embodiment, the rear-end material pulling mechanism further includes a pushing component 5 for pushing the guide wire. The pushing component 5 is disposed on the support body 1 and corresponds to the rear-end clamping component 3. The pushing component 5 can push the front end of the guide wire to the external bending position 8 and the external front end clamping structure 7.

[0050] In this embodiment, the feeding assembly 5 includes a feeding block 51, a feeding drive motor 52, and a feeding gripper cylinder 53. The feeding gripper cylinder 53 is mounted on the feeding block 51, and the feeding block 51 is movably mounted on the support body 1. The feeding drive motor 52 is fixedly mounted on the support body 1 and is drivenly connected to the feeding block 51. The feeding drive motor 52 can drive the feeding block 51 to move, thereby pushing the front end of the guide wire held by the feeding gripper cylinder 53 to the external bending position 8 and the external front end clamping structure 7.

[0051] In this embodiment, the pusher gripper cylinder 53 is provided with a pusher gripping position 531 for gripping the guide wire, and a support block 54 is provided on the pusher block 51. The support block 54 is provided with a support position 541 for supporting the guide wire, and the support position 541 corresponds to the pusher gripping position 531. The provision of the support position 541 can support the guide wire, making the guide wire more stable during the pushing process and the repeated pulling process during subsequent bending.

[0052] In this embodiment, the support position 541 is a V-shaped groove.

[0053] In this embodiment, the rear-end material pulling mechanism further includes a second motion guide rail 6, the material pushing assembly 5 further includes a material pushing screw 55, the material pushing block 51 is movably disposed on the second motion guide rail 6, and the material pushing drive motor 52 is connected to the material pushing block 51 via the material pushing screw 55.

[0054] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rear end pull mechanism characterized by, The application relates to a rear-end wire pulling mechanism, which comprises the following parts: a support body; a first movement guide rail, wherein a pulling path is arranged on the first movement guide rail, and the pulling path has a pulling starting point and a pulling ending point at two ends respectively; a rear-end clamping assembly for clamping the rear end of a guide wire, wherein the rear-end clamping assembly is movably arranged on the pulling path of the first movement guide rail; a counterweight for pulling the rear-end clamping assembly from the pulling starting point to the pulling ending point by gravity potential energy, wherein the counterweight is connected with the rear-end clamping assembly through a connecting line; a reset assembly for pushing the rear-end clamping assembly to the pulling starting point, wherein the reset assembly is arranged on the support body.

2. A rear end pull mechanism according to claim 1, wherein The rear-end clamping assembly comprises a rear-end clamping jaw cylinder and a cylinder mounting seat, wherein an upper end of the rear-end clamping jaw cylinder is provided with a rear-end clamping position for clamping a guide wire, a lower end of the rear-end clamping jaw cylinder is fixedly arranged on the cylinder mounting seat, and the cylinder mounting seat is movably arranged on the pulling path of the first movement guide rail.

3. A rear end pull mechanism according to claim 2, wherein A support part is adjustably arranged on the cylinder mounting seat, an upper end of the support part is provided with a support surface for supporting a guide wire, and the support surface is located at one side of the rear-end clamping position.

4. A rear end pull mechanism according to claim 3, wherein The rear-end wire pulling mechanism further comprises a locking part, the cylinder mounting seat is provided with a locking hole, the support part is provided with an adjusting long hole, the adjusting long hole corresponds to the locking hole, the locking part passes through the adjusting long hole and is connected with the locking hole so as to lock the support part on the cylinder mounting seat.

5. A rear end pull mechanism according to claim 1, wherein The reset assembly comprises a reset mounting seat and a reset cylinder, the reset mounting seat is fixedly arranged on the support body, the reset cylinder is fixedly arranged on the reset mounting seat, and an output shaft of the reset cylinder corresponds to the rear-end clamping assembly.

6. A rear end pull-off mechanism according to any one of claims 1-5, characterized in that The rear-end wire pulling mechanism further comprises a pushing assembly for pushing a guide wire, the pushing assembly is arranged on the support body, and the pushing assembly corresponds to the rear-end clamping assembly.

7. A rear end pull mechanism according to claim 6, wherein The pushing assembly comprises a pushing block, a pushing driving motor and a pushing clamping jaw cylinder, the pushing clamping jaw cylinder is arranged on the pushing block, the pushing block is movably arranged on the support body, the pushing driving motor is fixedly arranged on the support body and is drivingly connected with the pushing block.

8. A rear end pull mechanism according to claim 7, wherein, The pushing clamping jaw cylinder is provided with a pushing clamping position for clamping a guide wire, a supporting block is arranged on the pushing block, the supporting block is provided with a supporting position for supporting a guide wire, and the supporting position corresponds to the pushing clamping position.

9. A rear end pull mechanism according to claim 8, wherein, The supporting position is a V-shaped groove.

10. A rear end pull mechanism according to claim 7, wherein The rear-end wire pulling mechanism further comprises a second movement guide rail, the pushing assembly further comprises a pushing screw rod, the pushing block is movably arranged on the second movement guide rail, and the pushing driving motor is drivingly connected with the pushing block through the pushing screw rod.

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