A heat-melt shrink film catheter rheology forming device

Abstract

The present invention discloses a heat-melt shrink film conduit rheoforming device, comprising a fixed frame, wherein the upper and lower ends of the fixed frame are provided with a clamping mechanism for clamping a stretching conduit, the fixed frame is provided with a hot melt mechanism for heating the heat shrink film and preventing the heat melt shrink film from deviating, a control box for controlling the operation of the clamping mechanism and the hot melt mechanism is provided on one side of the fixed frame, the hot melt mechanism comprises a lifting assembly, a mounting seat and a plurality of heating tube heating and deviating prevention assemblies, the lifting assembly is provided on one side of the fixed frame, the mounting seat is provided at the lifting end of the lifting assembly, a first electric push rod is provided on the upper end surface of the mounting seat, and a mounting plate is provided at the telescopic end of the first electric push rod; the present invention has a simple structure and a reasonable design, and can more accurately control the flow and shrinkage behavior of the heat shrink film, so that the heat shrink film and the conduit are more closely fitted, the generation of gaps and bubbles is reduced, and the processing accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of catheter processing equipment, in particular to a heat-melt shrink film catheter rheological molding device. Background Art

[0002] The heat-melt shrink film catheter rheoforming machine is a device that uses the principles of heat melting and rheology to shrink the heat shrink film on the catheter. The device precisely controls the temperature and pressure to form a tightly fitting surface of the heat shrink film on the catheter while maintaining the structural and functional integrity of the catheter. The heat-melt principle makes the heat shrink film flow at high temperatures, while the rheological principle controls the flow and shrinkage behavior of the heat shrink film to adapt it to the shape and size of the catheter. By adjusting the temperature and pressure, the fluidity and shrinkage rate of the heat shrink film can be precisely controlled to achieve the best fitting effect.

[0003] Deficiencies of existing technology:

[0004] During the heat-melt shrink film process, the heat shrink film needs to form a uniform and tight fit on the catheter surface. However, due to the imprecise control of the heat shrink film's fluidity and shrinkage rate, the heat shrink film is prone to uneven flow and loose fit. This may cause gaps or bubbles between the heat shrink film and the catheter, affecting the performance and service life of the catheter. Summary of the invention

[0005] The object of the present invention is to provide a heat-melt shrink film conduit rheology molding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a heat-melt shrink film conduit rheological forming device, comprising a fixed frame, the upper and lower ends of the fixed frame are provided with a clamping mechanism for clamping a stretching conduit, the fixed frame is provided with a hot melt mechanism for heating a heat-shrink film and preventing the heat-melt shrink film from deviating, one side of the fixed frame is provided with a control box for controlling the clamping mechanism and the hot melt mechanism, and the hot melt mechanism comprises:

[0007] A lifting assembly, wherein the lifting assembly is arranged on one side of the fixed frame;

[0008] A mounting seat, the mounting seat is arranged at the lifting end of the lifting assembly, a first electric push rod is arranged on the upper end surface of the mounting seat, a mounting plate is arranged at the telescopic end of the first electric push rod, and a plurality of mounting frames are arranged on the upper end of the mounting plate;

[0009] A plurality of heating tubes, each of which is arranged on a mounting frame and used for heating the heat shrink film, and one end of each heating tube is provided with a U-shaped air cavity;

[0010] The anti-deviation component is arranged on one side of the mounting seat.

[0011] As a further improvement of the present invention, the clamping mechanism comprises:

[0012] An upper fixing frame, wherein the upper fixing frame is arranged at the upper end of the fixing frame;

[0013] A plurality of pneumatic clamps, which are arranged on one side of the upper fixing frame and are used to fix the upper end of the catheter;

[0014] A lower fixing frame, the lower fixing frame being arranged at the lower end of the fixing frame;

[0015] A plurality of rope pulling modules, wherein the rope pulling modules are arranged on the upper end surface of the lower fixing frame;

[0016] A traction rope is arranged on the pull rope module and is used for pulling the lower end of the stretching catheter.

[0017] As a further improvement of the present invention, the anti-deviation assembly comprises:

[0018] A second electric push rod, the second electric push rod is arranged at the upper end of the mounting seat;

[0019] A fixing plate, the fixing plate being arranged on the upper end of the fixing end of the second electric push rod;

[0020] The movable plate is arranged on the upper end of the driving end of the second electric push rod, and a plurality of matching limiting grooves are arranged on the fixed plate and the movable plate.

[0021] As a further improvement of the present invention, the lifting assembly includes:

[0022] A fixed guide rail, the upper and lower ends of which are both arranged on a fixed frame;

[0023] A sliding block is connected to a ball screw arranged inside a fixed guide rail, a motor for driving the screw to rotate is arranged at the lower end of one side of the fixed guide rail, and the mounting seat is arranged on one side of the sliding block.

[0024] As a further improvement of the present invention, the control box is controlled and connected to the first electric push rod, the heating tube, the second electric push rod and the motor respectively.

[0025] As a further improvement of the present invention, a control switch for controlling the opening and closing of the pneumatic clamp is provided at the upper end of the upper fixing frame.

[0026] As a further improvement of the present invention, cavities communicating with the heating pipes are provided on both sides of the U-shaped air cavity.

[0027] As a further improvement of the present invention, the lower end of the traction rope is connected to a coil spring arranged inside the pull rope module.

[0028] As a further improvement of the present invention, a plurality of supporting feet and rollers are provided at the lower end of the fixed frame.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention is provided with a hot melt mechanism, which includes a lifting assembly, a mounting seat, a plurality of heating tubes and an anti-deviation assembly, to generate heat and transfer the heat to the hot melt shrink film by air convection or radiation, thereby ensuring that the shrink film can be heated evenly and avoiding local overheating or insufficient temperature;

[0031] 2. The anti-deviation assembly of the present invention includes a second electric push rod, a fixed plate and a movable plate. The fixed plate and the movable plate are provided with a plurality of matching limit grooves, which can more accurately control the flow and shrinkage behavior of the heat shrinkable film, so that the heat shrinkable film and the catheter are more closely fitted, the generation of gaps and bubbles is reduced, and the processing accuracy is improved;

[0032] 3. In the present invention, a control box for controlling the clamping mechanism and the hot melt mechanism is provided on one side of the fixed frame. The control box is respectively controlled and connected with the first electric push rod, the heating tube, the second electric push rod and the motor, and can automatically perform various process steps such as heating, melting, bonding and cooling, thereby reducing the intervention and errors of manual operation and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is an overall stereogram of the present invention;

[0034] Figure 2 A three-dimensional diagram of the hot melt mechanism of the present invention;

[0035] Figure 3 A three-dimensional diagram of the installation of the heating tube of the present invention;

[0036] Figure 4 It is a schematic diagram of the installation of the fixing plate of the present invention;

[0037] Figure 5 It is a schematic diagram of the installation of the pneumatic clamp of the present invention.

[0038] In the figure: 1. fixed frame; 101. supporting foot; 102. roller; 2. clamping mechanism; 21. upper fixed frame; 22. pneumatic clamp; 23. lower fixed frame; 24. pull rope module; 25. traction rope; 3. hot melt mechanism; 31. mounting seat; 32. first electric push rod; 33. mounting plate; 34. mounting frame; 35. heating tube; 36. U-shaped air cavity; 4. control box; 5. second electric push rod; 6. fixed plate; 61. limit groove; 7. movable plate; 8. fixed guide rail; 9. sliding block; 10. motor; 11. control switch. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] It should be noted that when an element is referred to as being "fixed", "mounted", "connected" or "disposed" with another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation in the specification, and therefore cannot be understood as limiting the present invention.

[0041] As a further improvement of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0042] Example

[0043] See also Figure 1-5The present invention provides a technical solution: a heat-melt shrink film conduit flow forming device, comprising a fixed frame 1, a clamping mechanism 2 for clamping a stretching conduit is fixedly installed at the upper and lower ends of the fixed frame 1, a hot melt mechanism 3 for heating a heat-shrink film and preventing the heat-melt shrink film from deviating is installed on the fixed frame 1, a control box 4 for controlling the clamping mechanism 2 and the hot melt mechanism 3 is installed on one side of the fixed frame 1, the hot melt mechanism 3 comprises a lifting assembly, a mounting seat 31, a plurality of heating tubes 35 and an anti-deviation assembly, the lifting assembly is fixedly installed on one side of the fixed frame 1, the mounting seat 31 is installed at the lifting end of the lifting assembly, the upper end surface of the mounting seat 31 is installed with a first electric push rod 32 by bolts, and the first electric push rod 35 is installed on the upper end surface of the mounting seat 31 by bolts. The telescopic end of an electric push rod 32 is installed with a mounting plate 33 by bolts, and a plurality of mounting frames 34 are installed with bolts on the upper end of the mounting plate 33. A heating tube 35 is embedded in the mounting frame 34 for heating the heat shrink film. A U-shaped air cavity 36 is installed at one end of the heating tube 35. The anti-deviation assembly is installed on one side of the mounting seat 31. When in use, the upper and lower ends of the preset conduit are respectively fixed by the clamping mechanism 2, and then the mounting seat 31 is driven to move by the lifting assembly, and the first electric push rod 32 is extended to make the conduit located between the U-shaped air cavity 36, and the heating tube 35 is started for heating, and the heat shrink film sleeved on the outside of the conduit is limited and adjusted by the anti-deviation assembly to ensure uniform shrinkage of the heat shrink film;

[0044] The anti-deviation assembly includes a second electric push rod 5, a fixed plate 6 and a movable plate 7. The second electric push rod 5 is installed on the upper end of the mounting seat 31 by bolts, the fixed plate 6 is installed on the upper end of the fixed end of the second electric push rod 5 by bolts, and the movable plate 7 is installed on the upper end of the driving end of the second electric push rod 5 by bolts. A plurality of matching limiting grooves 61 are provided on the fixed plate 6 and the movable plate 7. When the heating tube 35 is heated, the telescopic end of the second electric push rod 5 moves, driving the movable plate 7 to move, and shrinking through the limiting groove 61, so that the hot melt film is evenly and flatly wrapped on the surface of the catheter, and follows the movement of the lifting assembly, and completes the flattening of the heat shrinkable film and removes air in advance before the heat shrinkable film is heated and shrunk, thereby ensuring the shrinking effect of the heat shrinkable film.

[0045] The clamping mechanism 2 includes an upper fixing frame 21, a plurality of pneumatic clamps 22, a lower fixing frame 23, a plurality of pull rope modules 24 and a traction rope 25. The upper fixing frame 21 is installed on the upper end of the fixing frame 1 by bolts, the pneumatic clamp 22 is installed on one side of the upper fixing frame 21 by bolts to fix the upper end of the catheter, the lower fixing frame 23 is installed on the lower end of the fixing frame 1 by bolts, the pull rope module 24 is installed on the upper end surface of the lower fixing frame 23 by bolts, the traction rope 25 is installed on the pull rope module 24 to pull and stretch the lower end of the catheter, and the lower end of the traction rope 25 is connected to the coil spring arranged inside the pull rope module 24. When the catheter is clamped and fixed, the heat shrink film is firstly put on the outside of the catheter, and then the upper end of the catheter is clamped and fixed by the pneumatic clamp 22, and the lower end of the catheter is connected to the traction rope 25. The traction rope 25 is driven to shrink by the coil spring inside the pull rope module 24, so that the catheter is tensioned, so that the subsequent shrinkage of the heat shrink film can shrink smoothly.

[0046] The lifting assembly includes a fixed guide rail 8 and a sliding block 9. The upper and lower ends of the fixed guide rail 8 are installed on the fixed frame 1 by bolts. The sliding block 9 is connected to the ball screw installed inside the fixed guide rail 8. A motor 10 for driving the screw to rotate is provided at the lower end of one side of the fixed guide rail 8. The mounting seat 31 is installed on one side of the sliding block 9. When the heat shrink film is heated, the motor 10 drives the driving screw to rotate, so that the sliding block 9 moves, thereby driving the mounting seat 31 to move up and down, thereby realizing the heating and coating of the entire catheter.

[0047] The control box 4 is respectively connected to the first electric push rod 32 , the heating tube 35 , the second electric push rod 5 and the motor 10 . The control box 4 can automatically control the operation of the first electric push rod 32 , the heating tube 35 , the second electric push rod 5 and the motor 10 .

[0048] The upper end of the upper fixing frame 21 is provided with an opening and closing control switch 11 for controlling the pneumatic clamp 22, which can realize the operation of a single pneumatic clamp 22 and facilitate the installation and adjustment of the catheter.

[0049] Both sides of the U-shaped air cavity 36 are provided with cavities connected to the heating tube 35, which generate heat and transfer the heat to the hot melt shrink film by air convection or radiation, ensuring that the shrink film can be heated evenly and avoiding local overheating or insufficient temperature.

[0050] A plurality of supporting legs 101 and rollers 102 are installed at the lower end of the fixed frame 1 to facilitate the movement and fixation of the fixed frame 1 .

[0051] Working principle: first, the heat shrink film is put on the outside of the catheter, and then the upper end of the catheter is clamped and fixed by the pneumatic clamp 22, and the lower end of the catheter is connected to the traction rope 25. The traction rope 25 is driven to shrink by the coil spring inside the pull rope module 24, so that the catheter is tensioned, so that the subsequent heat shrink film can shrink smoothly. The first electric push rod 32 is extended to make the catheter located between the U-shaped air cavity 36, and the heating tube 35 is started for heating. The telescopic end of the second electric push rod 5 moves, driving the movable plate 7 to move, and shrinks through the limit groove 61, so that the hot melt film is evenly and evenly wrapped on the surface of the catheter. The motor 10 drives the driving screw to rotate, so that the sliding block 9 moves, thereby driving the mounting seat 31 to move from top to bottom, and realizes the heating and coating of the entire catheter. The device can more accurately control the flow and shrinkage behavior of the heat shrink film, so that the heat shrink film and the catheter fit more closely, reduce the generation of gaps and bubbles, and improve the processing accuracy.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat-melt shrink film catheter rheological molding device, comprising a fixed frame (1), characterized in that: The upper and lower ends of the fixed frame (1) are provided with clamping mechanisms (2) for clamping the stretching tube, the fixed frame (1) is provided with a hot melt mechanism (3) for heating the heat shrink film and preventing the heat melt shrink film from deviating, and one side of the fixed frame (1) is provided with a control box (4) for controlling the operation of the clamping mechanism (2) and the hot melt mechanism (3), and the hot melt mechanism (3) comprises: A lifting component, wherein the lifting component is arranged on one side of the fixed frame (1); A mounting seat (31), the mounting seat (31) being arranged at the lifting end of the lifting assembly, a first electric push rod (32) being arranged on the upper end surface of the mounting seat (31), a mounting plate (33) being arranged at the telescopic end of the first electric push rod (32), and a plurality of mounting frames (34) being arranged on the upper end of the mounting plate (33); A plurality of heating tubes (35), wherein the heating tubes (35) are arranged on the mounting frame (34) and are used to heat the heat shrink film, and a U-shaped air cavity (36) is arranged at one end of the heating tube (35); An anti-deviation component, the anti-deviation component being arranged on one side of the mounting seat (31); The anti-deviation component comprises: A second electric push rod (5), the second electric push rod (5) being arranged at an upper end of the mounting seat (31); A fixing plate (6), the fixing plate (6) being arranged on the upper end of the fixing end of the second electric push rod (5); A movable plate (7), the movable plate (7) being arranged at the upper end of the driving end of the second electric push rod (5), and a plurality of matching limiting grooves (61) being arranged on the fixed plate (6) and the movable plate (7); The clamping mechanism (2) comprises: An upper fixing frame (21), wherein the upper fixing frame (21) is arranged at an upper end of the fixing frame (1); A plurality of pneumatic clamps (22), wherein the pneumatic clamps (22) are arranged on one side of the upper fixing frame (21) and are used to fix the upper end of the catheter; A lower fixing frame (23), wherein the lower fixing frame (23) is arranged at the lower end of the fixing frame (1); A plurality of rope pulling modules (24), wherein the rope pulling modules (24) are arranged on the upper end surface of the lower fixing frame (23); A traction rope (25), the traction rope (25) being arranged on the pull rope module (24) and used for traction of the lower end of the stretching catheter; The lower end of the traction rope (25) is connected to a coil spring arranged inside the pull rope module (24).

2. A heat-melt shrink film catheter rheology molding device according to claim 1, characterized in that: The lifting assembly comprises: A fixed guide rail (8), wherein the upper and lower ends of the fixed guide rail (8) are both arranged on the fixed frame (1); A sliding block (9), the sliding block (9) being connected to a ball screw disposed inside the fixed guide rail (8), a motor (10) for driving the screw to rotate being disposed at the lower end of one side of the fixed guide rail (8), and the mounting seat (31) being disposed on one side of the sliding block (9).

3. A heat-melt shrink film catheter rheology molding device according to claim 2, characterized in that: The control box (4) is respectively controllably connected to the first electric push rod (32), the heating tube (35), the second electric push rod (5) and the motor (10).

4. The heat-melt shrink film catheter rheology molding device according to claim 1, characterized in that: An opening and closing control switch (11) for controlling the pneumatic clamp (22) is provided at the upper end of the upper fixing frame (21).

5. The heat-melt shrink film catheter rheology molding device according to claim 1, characterized in that: Both sides of the U-shaped air cavity (36) are provided with cavities that are in communication with the heating pipe (35).

6. The heat-melt shrink film catheter rheology molding device according to claim 1, characterized in that: A plurality of supporting legs (101) and rollers (102) are provided at the lower end of the fixed frame (1).

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