Balloon stretching mechanism

Abstract

The utility model discloses a balloon stretching mechanism, which comprises a bottom plate, two driving assemblies which are oppositely arranged are arranged on the bottom plate; clamping assemblies are arranged on the two driving assemblies, and the clamping assemblies are used for clamping the two ends of the balloon; a heating assembly is arranged between the two driving assemblies, an adjusting assembly is arranged below the heating assembly, the position of the heating assembly is adjusted through the adjusting assembly, the heating assembly heats the middle of the balloon, the driving assemblies drive the clamping assemblies to move towards the two sides, and the balloon is clamped by the clamping assemblies. The heated balloon is stretched; the two opposite clamping assemblies and the two opposite heating assemblies are designed, the two sides of the balloon can be heated at the same time, after heating is completed, the two sides are stretched at the same time, the stretching forming precision of the balloon is ensured through stretching stress, stretching can be completed only through one-time stretching, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical machining equipment field especially, relates to a balloon stretching mechanism. BACKGROUND

[0002] With the development of medical level, medical catheter has special function and occupies the important position in clinical medical treatment. The balloon catheter is a part of medical catheter, as an important means of treating cardiovascular diseases, and its processing precision also has higher requirement.

[0003] Among them, the balloon bubble stretching is a process step before balloon forming, and the purpose of the process is to form a bubble by heating and stretching first, to support the balloon expansion during use, and the current way is to heat and stretch the balloon tube on one side first, and then heat and stretch the other side after completion, in the process of two times of stretching, after once stretching, the balloon tube changes, and when stretching the other side, the stress distribution of the balloon tube also changes, which affects the precision of balloon stretching forming, and the processing efficiency of this way is low. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a balloon stretching mechanism.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a balloon stretching mechanism, comprising:

[0006] The bottom plate is provided with two oppositely arranged driving assemblies;

[0007] The bottom plate is provided with two oppositely arranged driving assemblies;

[0008] Two driving assemblies are provided with clamping assemblies, and the clamping assemblies clamp the two ends of the balloon; a heating assembly is arranged between the two driving assemblies, an adjusting assembly is arranged below the heating assembly, the position of the heating assembly is adjusted through the adjusting assembly, the middle part of the balloon is heated through the heating assembly, and the clamping assemblies are driven to move to both sides through the driving assemblies, so that the heated balloon is stretched.

[0009] As a further description of the above technical scheme: the driving assembly comprises a sliding table, the sliding table is provided with a clamping assembly, one side of the sliding table is provided with a position sensor, and the clamping assembly reciprocates along the setting direction of the sliding table through the sliding table.

[0010] As a further description of the above technical scheme: the clamping assembly comprises a base, a floating seat is arranged above the base, a gap exists between the base and the floating seat, a tension sensor is mounted at the gap, and the two sides of the tension sensor are connected with the base and the floating seat respectively.

[0011] As the further description of the above technical scheme: the floating seat is provided with a cylinder, one side of the cylinder is provided with a first guide rail, the first guide rail is provided with a chuck, and the cylinder is connected with the two sides of the chuck through a gas pipe.

[0012] As the further description of the above technical scheme: the heating assembly comprises a first sliding seat, the first sliding seat is provided with a second sliding seat, the upper portion of the second sliding seat is provided with oppositely arranged mounting plates, and the two mounting plates are controlled to move towards or away from each other.

[0013] As the further description of the above technical scheme: the moving direction of the first sliding seat is perpendicular to the mounting plate.

[0014] As the further description of the above technical scheme: the two mounting plates are provided with heating plates, the end surface of the heating plate is provided with a groove, and the balloon is heated in contact with the heating plate.

[0015] As the further description of the above technical scheme: the adjusting assembly comprises a motor, and the output end of the motor penetrates through the bottom plate and extends upwards.

[0016] As the further description of the above technical scheme: the output end of the motor is provided with a gear, the bottom plate is provided with two second guide rails, the second guide rails are provided with sliding blocks, and the sliding blocks are provided with the first sliding seat.

[0017] As the further description of the above technical scheme: the first sliding seat is provided with a rack on the side close to the gear, the motor drives the gear to rotate, drives the rack to move, and adjusts the position of the heating assembly.

[0018] The above technical scheme has the following advantages or beneficial effects:

[0019] The two oppositely arranged clamping assemblies and heating assemblies can heat the two sides of the balloon at the same time, after heating is completed, the two sides are stretched at the same time, the stress received at the same time is ensured, the precision of balloon stretching is ensured, and the processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the stretching mechanism of the utility model;

[0021] Figure 2 It is a front view of the stretching mechanism of the utility model;

[0022] Figure 3 It is a top view of the stretching mechanism of the utility model;

[0023] Figure 4 For Figure 2 A cross-sectional view at A-A in FIG.

[0024] Figure 5 For Figure 3 A cross-sectional view at B-B in FIG.

[0025] Legend:

[0026] 1, base plate; 2, drive assembly; 22, sliding table; 23, position sensor; 3, clamping assembly; 31, base; 32, floating seat; 33, tension sensor; 34, air cylinder; 35, first guide rail; 36, chuck; 4, heating assembly; 41, first sliding seat; 42, second sliding seat; 43, mounting plate; 44, heating plate; 5, adjusting assembly; 51, motor; 52, gear; 53, second guide rail; 54, sliding block; 55, rack. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] With reference to Figures 1-5 , the utility model provides an embodiment: a balloon stretching mechanism, include: base plate 1, base plate 1 is provided with two opposite drive assemblies 2 that set, two drive assemblies 2 are provided with clamping assembly 3, and clamping assembly 3 is clamped to the both ends of balloon, heating assembly 4 is set between two drive assemblies 2, and the lower portion of heating assembly 4 is provided with adjusting assembly 5, the position of heating assembly 4 is adjusted by adjusting assembly 5, heating assembly 4 heats the middle part of balloon, and the heated balloon is stretched by driving drive assembly 2 to move clamping assembly 3 to both sides.

[0029] In the embodiment, two opposite clamping assemblies 3 and heating assemblies 4 are designed, clamping assembly 3 is moved by two drive assemblies 2, the two sides of balloon can be heated simultaneously, after heating, the two sides are stretched simultaneously, the stress of stretching that balloon is subjected to simultaneously ensures the precision of balloon stretching forming, and only once stretching can be completed, and processing efficiency is improved.

[0030] Drive assembly 2 includes sliding table 22, sliding table 22 is provided with clamping assembly 3, one side of sliding table 22 is provided with position sensor 23, and clamping assembly 3 is controlled to reciprocate along the setting direction of sliding table 22 by sliding table 22.

[0031] In the embodiment, the sliding table 22 is a linear sliding table module, model GTH5-L5-150, connected to the bottom plate 1 on one side, and a sliding plate is arranged on the sliding table 22 and connected to the clamping assembly 3 through the sliding plate. The sliding table 22 is controlled to move, so that the sliding plate drives the clamping assembly 3 to reciprocate, thereby realizing stretching of the balloon. The position sensor 23 is a grating sensor, and two position sensors are arranged. The sliding plate of the sliding table 22 is provided with a light shield on one side to position the clamping assembly 3, and the clamping assembly 3 stops moving after reaching the position, thereby completing stretching and resetting.

[0032] The clamping assembly 3 comprises a base 31, and a floating seat 32 is arranged above the base 31. There is a gap between the base 31 and the floating seat 32, and a tension sensor 33 is arranged in the gap. The two sides of the tension sensor 33 are connected to the base 31 and the floating seat 32, respectively.

[0033] In the embodiment, the base 31 is connected to the sliding plate of the sliding table 22 through a bolt. T-shaped grooves are formed in the base 31 and the floating seat 32, and the base 31 and the floating seat 32 are arranged opposite to each other. Thus, there is a gap between the base 31 and the floating seat 32. The tension sensor 32 is model LCS-S9 and is arranged between the base 31 and the floating seat 32. The two sides of the tension sensor 32 are connected to the base 31 and the floating seat 32, respectively. When stretching, the tension sensor 32 will slightly deform and send tension information to an external monitoring processor (not shown in the figure). Thus, real-time monitoring and prompting can be realized to prevent rupture.

[0034] The floating seat 32 is provided with a cylinder 34. The cylinder 34 is provided with a first guide rail 35 on one side, and a chuck 36 is arranged on the first guide rail 35. The cylinder 34 is connected to the two sides of the chuck 36 through air pipes.

[0035] In the embodiment, the cylinder 34 is a finger cylinder, model HFZ32, and the two sides can be connected to air pipes. The two sides are connected to the chuck 36 through air pipes. The chuck 36 is arranged on the first guide rail 35 on one side. The chuck 36 is controlled to move on the first guide rail 35 by the cylinder 34 to clamp or loosen the balloon.

[0036] The heating assembly 4 comprises a first sliding seat 41. The first sliding seat 41 is provided with a second sliding seat 42. The second sliding seat 42 is provided with oppositely arranged mounting plates 43 above. The two mounting plates 43 are controlled to move towards or away from each other. The two mounting plates 43 are provided with heating plates 44. Grooves are formed in the end faces of the heating plates 44 to contact and heat the balloon.

[0037] In the embodiment, the second sliding seat 42 is arranged on the first sliding seat 41, so that the mounting plates 43 move on the second sliding seat 42 to drive the heating plates 44 on the two mounting plates 42 to move towards or away from each other. After the balloon is clamped and contacted, the balloon is heated, thereby facilitating stretching of the balloon.

[0038] The first sliding seat 41 is perpendicular to the moving direction of the mounting plate 43.

[0039] In this embodiment, the position of the heating assembly 4 is adjusted by the first sliding seat 41, and the balloon bubble length is adjusted according to the processing of different balloon types, and the two sides of the balloon are contacted and heated by the mounting plate 43.

[0040] The adjusting assembly 5 includes a motor 51, the output end of the motor 51 penetrates through the bottom plate 1 and extends upward; the output end of the motor 51 is provided with a gear 52, two second guide rails 53 are arranged on the bottom plate 1, a sliding block 54 is arranged on the second guide rail 53, and a first sliding seat 41 is arranged on the sliding block 54; a rack 55 is arranged on the side of the first sliding seat 41 close to the gear 52, the motor 51 drives the gear 52 to rotate, drives the rack 55 to move, and adjusts the position of the heating assembly 4.

[0041] In this embodiment, the gear 52 is engaged with the two racks 55, the arrangement direction of the rack 55 is parallel to the arrangement direction of the second guide rail 53, the motor 51 drives the gear 52 to rotate, drives the two racks 55 to move in the same direction or opposite directions, and then drives the first sliding seat 41 to move on the second guide rail 53 through the sliding block 54 below, adjusts the position of the heating assembly 4, and the motor 51 is a servo motor.

[0042] Working principle: place the two ends of the balloon catheter at the feeding position, control the chuck 36 to clamp the balloon; stretch left and right to ensure that the balloon is tensioned, input parameter information, control the adjusting assembly 5 to automatically adjust the distance between the two heating assemblies 4; the temperature of the heating assembly 4 is preheated to the set temperature, and the two sides are folded at the same time through the cylinder 34, and the two sides are heated at the same time; after heating is completed, the driving assembly 2 on the two sides drives the chuck 36 on the two sides to stretch the balloon at the same time according to the speed in the input parameter information; a small amount of readjustment is performed according to the tension monitored by the tension sensor 33, the rapid stretching of the balloon is completed, and the balloon is discharged.

[0043] The standard parts used in this embodiment can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the details are not described herein, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0044] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A balloon stretching mechanism, characterized by, Include: The base plate (1); Two driving assemblies (2) are arranged on the base plate (1); Two driving assemblies (2) are arranged on the base plate (1); 2. The stretching mechanism of claim 1, wherein: Two driving assemblies (2) are arranged on the base plate (1); 3. The stretching mechanism of claim 1, wherein: The driving assembly (2) includes a sliding table (22), the sliding table (22) is provided with the clamping assembly (3), one side of the sliding table (22) is provided with a position sensor (23), the clamping assembly (3) is controlled to reciprocate along the setting direction of the sliding table (22).

4. The stretching mechanism of claim 3, wherein: The clamping assembly (3) includes a base (31), a floating seat (32) is arranged above the base (31), a gap exists between the base (31) and the floating seat (32), a tension sensor (33) is installed at the gap, and the two sides of the tension sensor (33) are connected with the base (31) and the floating seat (32) respectively.

5. The stretching mechanism of claim 1, wherein: The floating seat (32) is provided with a cylinder (34), a first guide rail (35) is arranged on one side of the cylinder (34), a chuck (36) is arranged on the first guide rail (35), and the cylinder (34) is connected with the two sides of the chuck (36) through an air pipe.

6. The stretching mechanism of claim 5, wherein: The heating assembly (4) includes a first sliding seat (41), a second sliding seat (42) is installed on the first sliding seat (41), and oppositely arranged mounting plates (43) are arranged above the second sliding seat (42).

7. The stretching mechanism of claim 5, wherein: The first sliding seat (41) is perpendicular to the moving direction of the mounting plate (43).

8. The stretching mechanism of claim 5, wherein: Two mounting plates (43) are provided with heating plates (44), and grooves are formed in the end faces of the heating plates (44) to contact and heat the balloon.

9. The stretching mechanism of claim 8, wherein: The adjusting assembly (5) includes a motor (51), and the output end of the motor (51) extends to the upper side through the base plate (1).

10. The stretching mechanism of claim 9, wherein: The output end of the motor (51) is provided with a gear (52), two second guide rails (53) are arranged on the base plate (1), a sliding block (54) is arranged on the second guide rail (53), and the first sliding seat (41) is arranged on the sliding block (54). The first sliding seat (41) is provided with a rack (55) on one side close to the gear (52), the motor (51) drives the gear (52) to rotate, drives the rack (55) to move, and adjusts the position of the heating assembly (4).

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