CN110614776A

CN110614776A - Automatic control catheter tip forming die

Info

Publication number: CN110614776A
Application number: CN201910990900.8A
Authority: CN
Inventors: 张光宇; 李爽; 潘恒; 阮仪清; 王贺鹤
Original assignee: Shenyang Mastech Medical Device Co Ltd
Current assignee: Shenyang Mastech Medical Device Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2019-12-27

Abstract

A self-control catheter tip forming die belongs to the technical field of medical instruments, and particularly relates to a self-control catheter tip forming die. The invention provides a self-control catheter tip forming die which is fast in heating, modularized and efficient. The invention comprises a base, and is characterized in that: a mould seat is arranged on the base, and a forming mould assembly is arranged on the mould seat; one side of the base corresponding to the forming die assembly is provided with a moving unit, and the moving unit is provided with a conduit clamping unit corresponding to the forming die assembly.

Description

Automatic control catheter tip forming die

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a self-control catheter tip forming die.

Background

With the development of science and technology, interventional medical treatment is rapidly developed in recent years, the market of interventional medical catheters is rapidly expanded, and in order for catheters to play roles in different clinics, the tips of the catheters need to be diversified, and the catheters are safe and reliable to use, high in hygienic index, high in production efficiency and the like. Existing tip molding devices are of the cut type and the hot melt type. The tip cutting forming method comprises the following steps: the temperature is reduced to harden the tip of the catheter, and the hardened tip is cut and formed by a cutter set.

The tip hot melting molding method is that a thermocouple heating coil is fixed on a tip molding die, and after the die is heated, the tip of the catheter is hot melted, so that the tip molding is achieved. Because the mould is a non-detachable whole, when in heating, all parts of the mould are heated unevenly, and the stability of the product has hidden trouble; the hot melting tip forming is a heating, hot melting and cooling process. The coil needs to be heated again every time, time is needed, and the efficiency is not very high; when another type of guide pipe needs to be processed, the forming die and the heating coil need to be integrally detached, and the working efficiency is reduced.

Disclosure of Invention

Aiming at the problems, the invention provides the automatic control catheter tip forming die which is fast in heating, modularized and efficient.

In order to achieve the above purpose, the invention adopts the following technical scheme, and the invention comprises a base, and is characterized in that: a mould seat is arranged on the base, and a forming mould assembly is arranged on the mould seat; one side of the base corresponding to the forming die assembly is provided with a moving unit, and the moving unit is provided with a conduit clamping unit corresponding to the forming die assembly.

As a preferable scheme of the present invention, a water cooling channel of the forming mold assembly is provided in the mold base.

As another preferable scheme of the present invention, a limiting device is provided on the mold base corresponding to the moving unit.

The invention has the beneficial effects that: 1. the invention can use high-frequency induction heating method to shape the tip of the catheter. The heating efficiency is high, and the production efficiency is improved. When the device works in a high-power state, the device inevitably generates certain heat, so that the temperature rise is caused. The cooling is utilized, so that the performance, the efficiency and the power of the machine can be ensured, components can be reduced, and the machine is damaged. The stability of the tip molding is ensured.

2. Each unit of the invention can be automatically controlled, thereby realizing automatic production, being convenient for ensuring the production stability and the product consistency and improving the production efficiency.

3. The forming die assembly is integrated and is not connected with the high-frequency heating coil, so that the complexity in disassembling the die can be reduced, the die is convenient to replace, and the production efficiency is improved.

4. The mould part mould is modularized, and the mould can be quickly replaced according to different models.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of a die holder and a forming die assembly.

Fig. 3 is a schematic view of the structure of the motion unit.

Figure 4 is a schematic diagram of the construction of the conduit gripping unit.

Fig. 5 is an exploded view of fig. 4.

Fig. 6 is a state diagram of the use of the present invention.

Fig. 7 is a schematic structural view of the heating unit.

In the figure, 1 is an air source, 2 is a control unit, 3 is a heating unit, 4 is a cooling system, 5 is a moving unit, 6 is a die unit, 7 is a base, 8 is a micrometer, 9 is a forming die assembly, 10 is a die seat, 11 is a conduit clamping block, 12 is a fixing nail, 13 is a clamping upper frame, 14 is a clamping lower frame, 15 is a conduit body, 16 is a sliding block and sliding rail assembly, 17 is a telescopic cylinder, 18 is a die core and die cavity fixing assembly, 19 is a jackscrew, 20 is a die cavity, 21 is a die core, 22 is a clamping block, 23 is a water cooling channel, 24 is a ruler head, 25 is a position adjusting screw, 26 is a telescopic block, 27 is a clamping cylinder, 28 is a high-frequency heating coil, 29 is an adjusting hinge seat, and 30 is a universal blowing nozzle.

Detailed Description

The invention comprises a base 7, and is characterized in that: a mould seat 10 is arranged on the base 7, and a forming mould assembly 9 is arranged on the mould seat 10; a moving unit 5 is arranged on one side of the base 7 corresponding to the forming die assembly 9, and a conduit clamping unit corresponding to the forming die assembly 9 is arranged on the moving unit 5.

In a preferred embodiment of the present invention, the water cooling channel 23 of the forming die assembly 9 is disposed in the die base 10.

As another preferred embodiment of the present invention, a limiting device is disposed on the mold base 10 corresponding to the moving unit 5.

The limiting device comprises a micrometer 8 arranged on the die base 10, and a micrometer head 24 of the micrometer 8 penetrates through the die base 10 and corresponds to the moving unit 5.

The moving unit 5 comprises a telescopic cylinder 17 arranged on the base 7, a telescopic block 26 is arranged on the telescopic cylinder 17, and a position adjusting screw 25 matched with the limiting device is arranged on the telescopic block 26; the conduit gripping unit is disposed on the telescoping block 26.

The telescopic block 26 is connected with the base 7 through a sliding block and sliding rail assembly 16.

The conduit clamping unit comprises an upper clamping frame 13 and a lower clamping frame 14, and the lower clamping frame 14 is connected with the moving unit 5; a clamping cylinder 27 is arranged in the lower clamping frame 14; a conduit clamping block 11 with an up-and-down separation structure is arranged in the clamping upper frame 13, and a piston rod of the clamping cylinder 27 corresponds to the conduit clamping block 11; the top of the clamping upper frame 13 is provided with a fixing nail 12 of the conduit clamping block 11.

The forming mold assembly 9 comprises a mold cavity 20 arranged on the mold base 10, a mold core 21 is arranged in the mold cavity 20, and one end of the mold core 21 and one end of the mold cavity 20 extend out of the mold base 10 to be connected with a mold core and mold cavity fixing assembly 18.

The die holder 10 is provided with a clamping block 22 matched with the outer surface of the die cavity 20, and the side of the die holder 10 is provided with a jackscrew 19 of the clamping block 22.

The self-control catheter tip forming die is connected with a control unit 2; meanwhile, the heating device also comprises a heating unit 3 connected with the control unit 2; the heating unit 3 is provided with a high-frequency heating coil 28 which is matched with the other side of the forming die assembly 9.

The high-frequency heating coil 28 of the heating unit 3 corresponds to a portion of the die core 21 and the die cavity 20 protruding out of the die holder 10.

The water cooling channel 23 is connected to a cooling pump of the cooling system 4 by a pipe.

A universal blowing nozzle 30 connected with an air source 1 is arranged on the side of the mould seat 10.

The high-frequency heating coil 28 is connected to the heating unit 3 via an adjusting hinge mount 29.

When the die is used, a proper die cavity 20 and a proper die core 21 are connected into a whole through a die core and die cavity assembly and are arranged on a die seat 10, and the die cavity 20 and the die core 21 are fixed through the matching of a jackscrew 19 and a clamping block 22; the die holder 10 is fixed to the base 7 and adjusted in position with the high-frequency heating coil 28.

At the same time, the catheter body 15 is inserted into the catheter holding block 11 of the catheter holding unit, and the micrometer 8 and the position adjusting screw 25 are adjusted to control the movement stroke of the movement unit 5 according to the forming requirement.

After the preparation work is finished, the control unit 2 starts the heating unit 3, and the high-frequency heating coil 28 heats the die core 21 and the die cavity 20; the clamping cylinder 27 is actuated to clamp and fix the pipe body 15; the telescopic cylinder 17 acts to drive the fixed conduit body 15 to advance into the die cavity 20 through the telescopic block 26, after the conduit body 15 is subjected to hot melting forming, the cooling pump is started, cooling water flows in the die seat 10 to cool the forming die assembly 9, and meanwhile, the universal blowing nozzle can also cool the forming die assembly 9; then, the telescopic cylinder 17 is retracted to draw the guide pipe body 15 out of the mold cavity 20, and the clamping unit releases the guide pipe body 15, thereby completing the processing of the guide pipe body 15.

It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can be modified or substituted equally to achieve the same technical effects; as long as the use requirements are met, the method is within the protection scope of the invention.

Claims

1. The utility model provides a sharp-end forming die of automatic control pipe, includes base (7), its characterized in that: a mould seat (10) is arranged on the base (7), and a forming mould assembly (9) is arranged on the mould seat (10).

2. The self-controlling catheter tip molding die of claim 1, wherein: one side of the base (7) corresponding to the forming die assembly (9) is provided with a moving unit (5), and the moving unit (5) is provided with a conduit clamping unit corresponding to the forming die assembly (9).

3. The self-controlling catheter tip molding die of claim 1, wherein: and a water cooling channel (23) of the forming die assembly (9) is arranged in the die seat (10).

4. The self-controlling catheter tip molding die of claim 1, wherein: and a limiting device is arranged on the die seat (10) corresponding to the moving unit (5).

5. The self-controlling catheter tip molding die of claim 4, wherein: the limiting device comprises a micrometer (8) arranged on the die seat (10), and a micrometer head (24) of the micrometer (8) penetrates through the die seat (10) to correspond to the moving unit (5).

6. The self-controlling catheter tip molding die of claim 2, wherein: the movement unit (5) comprises a telescopic cylinder (17) arranged on the base (7), a telescopic block (26) is arranged on the telescopic cylinder (17), and a position adjusting screw (25) matched with the limiting device is arranged on the telescopic block (26); the conduit gripping unit is disposed on a telescoping block (26).

7. The self-controlling catheter tip molding die of claim 2, wherein: the conduit clamping unit comprises an upper clamping frame (13) and a lower clamping frame (14), and the lower clamping frame (14) is connected with the moving unit (5); a clamping cylinder (27) is arranged in the lower clamping frame (14); a conduit clamping block (11) with an up-and-down separation structure is arranged in the clamping upper frame (13), and a piston rod of the clamping cylinder (27) corresponds to the conduit clamping block (11); the top of the clamping upper frame (13) is provided with a fixing nail (12) of the conduit clamping block (11).

8. The self-controlling catheter tip molding die of claim 1, wherein: the forming die assembly (9) comprises a die cavity (20) arranged on a die seat (10), a die core (21) is arranged in the die cavity (20), and one ends of the die core (21) and the die cavity (20) extend out of the die seat (10) to be connected with a die core die cavity fixing assembly (18).

9. The self-controlling catheter tip molding die of claim 8, wherein: the die is characterized in that a clamping block (22) matched with the outer surface of the die cavity (20) is arranged on the die seat (10), and a jackscrew (19) of the clamping block (22) is arranged on the side of the die seat (10).