Mandrel recovery push-pull trolley limiting tool for medical catheter core-pulling mechanism

Abstract

The utility model discloses a limiting tool for a mandrel recovery push-pull cart for a medical catheter core-pulling mechanism, which comprises a frame structure for providing overall support and stability, and an accommodating space for accommodating the mandrel recovery push-pull cart is formed in the frame structure. A limiting device used for limiting the mandrel recycling push-and-pull trolley is arranged on the frame structure at the lower end of the displacement containing space, and the mandrel recycling push-and-pull trolley can be effectively prevented from moving in the working process through the limiting device. The mandrel recovery push-and-pull trolley can be effectively fixed, the situation that mandrels are scattered due to movement of the push-and-pull trolley is avoided, waste of the mandrels is reduced, the cleaning workload is reduced, meanwhile, cleanliness and safety of a production site are guaranteed, and production efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of medical catheter core extraction technology, specifically, it relates to a core shaft recovery push-pull cart limiting tooling for a medical catheter core extraction mechanism. Background Technology

[0002] Medical catheters are tubular instruments, generally made of soft polymer materials. During the manufacturing process, a relatively rigid mandrel is used as a guide and support to ensure that the shape, size, and performance of the catheter meet medical requirements. However, during the manufacturing process, the inner wall of the catheter and the mandrel may bond together due to heat. Therefore, when the intermediate process of the catheter is completed, the mandrel needs to be removed from the catheter for subsequent processing.

[0003] When extracting the mandrel from the guide tube, it is first necessary to stretch the mandrel to detach it from the inner wall of the guide tube. Then, the mandrel is pulled out from one end of the guide tube and trimmed to prevent it from being too long for easy recycling. Currently, during the trimming and recycling process, a recycling box is usually placed below the trimming mechanism, and the recycling box is placed on a trolley to transfer the recycled mandrels. However, this recycling method often causes the recycling box to shift due to the movement of the trolley (e.g., accidental collision, uneven ground causing the trolley to shake), resulting in the trimmed mandrels not falling accurately into the recycling box and scattering on the ground. This not only wastes the mandrels but also increases the amount of cleaning work and may even affect the cleanliness and safety of the production site. Utility Model Content

[0004] In order to solve the problems existing in the prior art, this utility model aims to provide a limiting tooling for a mandrel recovery push-pull cart for a medical catheter core extraction mechanism, so as to fix the mandrel recovery push-pull cart and prevent the mandrel from falling off due to the movement of the push-pull cart.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A limiting fixture for a mandrel retrieval push-pull trolley in a medical catheter core extraction mechanism includes a frame structure for providing overall support and stability. The frame structure has an internal accommodating space for accommodating the mandrel retrieval push-pull trolley. A limiting device is provided on the frame structure at the lower end of the accommodating space to limit the movement of the mandrel retrieval push-pull trolley during operation.

[0007] Furthermore, the frame structure includes a substrate and a support frame disposed above the substrate.

[0008] Furthermore, a feed funnel is provided above the support frame.

[0009] Furthermore, decorative panels are provided on the side walls of the support frame.

[0010] Furthermore, the limiting device includes a track for providing movement guidance for the mandrel recycling push-pull trolley, a baffle for limiting the maximum travel of the mandrel recycling push-pull trolley sliding inward along the track at the rear end of the track, and a blocking component for preventing the mandrel recycling push-pull trolley from sliding outward along the track on one side of the inner sidewall of each set of tracks.

[0011] Furthermore, the blocking assembly includes a rotary cylinder, a connecting plate is provided on the turntable of the rotary cylinder, a double-rod cylinder is provided on the connecting plate, and a blocking block is provided at the front end of the piston rod of the double-rod cylinder.

[0012] Furthermore, the limiting device also includes a sensor to detect whether the mandrel recovery push-pull trolley has slid inward along the track to the correct position.

[0013] The beneficial effects of this utility model are as follows: By setting a frame structure and limiting device, this utility model can effectively fix the mandrel recycling push-pull cart, avoid the mandrel from falling due to the movement of the push-pull cart, reduce the waste of mandrels, reduce the amount of cleaning work, and at the same time ensure the cleanliness and safety of the production site and improve production efficiency.

[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of the tooling of this utility model;

[0017] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the limiting device of this utility model;

[0019] Figure 4 This is a schematic diagram of the blocking component of this utility model;

[0020] Figure 5 This is a schematic diagram of the push-pull cart of this utility model after it has been pushed in;

[0021] Figure 6 This is a schematic diagram of the working state of this utility model.

[0022] The following are the labels in the diagram: 1. Frame structure; 11. Base plate; 12. Support frame; 13. Feed hopper; 14. Decorative panel; 2. Accommodation space; 3. Limiting device; 31. Track; 32. Baffle; 33. Blocking assembly; 331. Rotary cylinder; 332. Connecting plate; 333. Double rod cylinder; 334. Blocking block; 34. Sensor. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] In the description of this invention patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this invention patent and for simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention patent. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention patent based on the specific circumstances.

[0025] See Figure 1 As shown, a mandrel retrieval push-pull trolley limiting fixture for a medical catheter core extraction mechanism includes a frame structure 1 for providing overall support and stability. The frame structure 1 has an internal accommodating space 2 for accommodating the mandrel retrieval push-pull trolley. A limiting device 3 for limiting the mandrel retrieval push-pull trolley is provided on the frame structure 1 at the lower end of the accommodating space 2. The limiting device 3 can effectively prevent the mandrel retrieval push-pull trolley from moving during operation.

[0026] In this embodiment, see Figure 2As shown, the frame structure 1 includes a base plate 11 and a support frame 12 disposed above the base plate 11. A feeding funnel 13 is disposed above the support frame 12 to facilitate the accurate sliding of the cut mandrels into the recycling box installed on the mandrel recycling trolley. A decorative panel 14 is disposed on the side wall of the support frame 12. The decorative panel 14 is locked to the support frame 12 by locking screws. The decorative panel 14 beautifies the appearance while protecting the internal structure of the frame structure 1.

[0027] Furthermore, in this embodiment, see Figure 3 As shown, the limiting device 3 includes a track 31 for providing movement guidance for the mandrel recycling push-pull trolley. The rear end of the track 31 is provided with a baffle 32 for limiting the maximum travel of the mandrel recycling push-pull trolley sliding inward along the track 31. Each set of tracks 31 has a blocking component 33 on one side of its inner sidewall to prevent the mandrel recycling push-pull trolley from sliding outward along the track 31. During installation, the track 31, the baffle 32, and the blocking component 33 are all disposed on the base plate 11, and the track 31 is integrally formed with the base plate 11. In this embodiment, the front end of the track 31 is provided in a trumpet shape, and the base plate 11 on the same side as this end is provided with an inclined surface. Through the above-mentioned configuration, the mandrel recycling push-pull trolley can smoothly enter the track 31, reducing the difficulty of alignment.

[0028] In this embodiment, see Figure 4 As shown, the blocking assembly 33 includes a rotary cylinder 331, a connecting plate 332 is provided on the turntable of the rotary cylinder 331, a double-rod cylinder 333 is provided on the connecting plate 332, and a blocking block 334 is provided at the front end of the piston rod of the double-rod cylinder 333. During operation, the blocking block 334 is rotated and extended by the cooperation of the rotary cylinder 331 and the double-rod cylinder 333, thereby realizing the locking and unlocking of the pushcart.

[0029] Additionally, in this embodiment, see Figure 3 As shown, the limiting device 3 also includes a sensor 34, which detects whether the spindle recovery push-pull trolley has slid inward along the track 31 to the correct position, thereby improving the automation level of the limiting.

[0030] The working principle of this utility model is as follows:

[0031] When using, please refer to Figure 5-6As shown in the figure (A represents the core-pulling mechanism; B represents the cutting mechanism; C represents the recycling trolley loaded with the recycling bin; D represents this tooling), the mandrel recycling trolley slides along the track 31 into the receiving space 2. After the sensor 34 detects that the trolley has reached its position, the rotary cylinder 331 rotates, driving the connecting plate 332 to move the blocking block 334 to the inside of the track 31. The piston rod of the double-rod cylinder 333 extends and presses against the tube wheel of the trolley, restricting the trolley between the baffle 32 and the blocking block 334, achieving reliable positioning. During cutting, the cut mandrel slides into the recycling bin through the feeding funnel 13, preventing the mandrel from scattering.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A core shaft recovery push-pull vehicle limiting tool for a medical catheter core mechanism, characterized in that: The system includes a frame structure (1) for providing overall support and stability. The frame structure (1) has an internal space (2) for accommodating the mandrel recycling trolley. A limiting device (3) for limiting the mandrel recycling trolley is provided on the frame structure (1) at the lower end of the space (2). The limiting device (3) can effectively prevent the mandrel recycling trolley from moving during operation.

2. The core shaft recovery push-pull trolley limiting tool for a medical catheter core mechanism according to claim 1, characterized in that: The frame structure (1) includes a base plate (11) and a support frame (12) disposed above the base plate (11).

3. The core shaft recovery push-pull trolley limiting tool for a medical catheter core mechanism according to claim 2, characterized in that: A feed hopper (13) is provided above the support frame (12).

4. The core shaft recovery push-pull trolley limiting tool for a medical catheter core pulling mechanism according to claim 2, characterized in that: A decorative panel (14) is provided on the side wall of the support frame (12).

5. The mandrel recovery push-pull trolley limiting fixture for the medical catheter core extraction mechanism according to claim 1, characterized in that: The limiting device (3) includes a track (31) for providing movement guidance for the mandrel recycling push-pull trolley, a baffle (32) for limiting the maximum travel of the mandrel recycling push-pull trolley sliding inward along the track (31) at the rear end of the track (31), and a blocking component (33) for preventing the mandrel recycling push-pull trolley from sliding outward along the track (31) on one side of the inner sidewall of each set of the track (31).

6. The core shaft recovery push-pull trolley limiting tool for a medical catheter core pulling mechanism according to claim 5, characterized in that: The blocking assembly (33) includes a rotary cylinder (331), a connecting plate (332) is provided on the turntable of the rotary cylinder (331), a double rod cylinder (333) is provided on the connecting plate (332), and a blocking block (334) is provided at the front end of the piston rod of the double rod cylinder (333).

7. The core shaft recovery push-pull trolley limiting tool for a medical catheter core pulling mechanism according to claim 5, characterized in that: The limiting device (3) also includes a sensor (34) to detect whether the spindle recovery push-pull trolley has slid inward along the track (31) to the correct position.

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