A traction device for processing a drainage tube

Abstract

The utility model relates to drainage tube processing equipment technical field, concretely is a kind of traction equipment for drainage tube processing, the front end of transmission frame is fixedly arranged fixed frame, one guide roller is arranged between two fixed frames before and after, the both ends of guide roller are rotatably connected with fixed frame, wherein the upper end of upper fixed frame and the lower end of lower fixed frame are equipped with tension adjusting assembly, and tension adjusting assembly includes support frame and tension adjusting roller, support frame is fixed on fixed frame, and tension adjusting roller is located inside support frame, and tension adjusting assembly is through the synergies of "L-shaped rod-spring-fixed sleeve", realize the dynamic compensation to the tension of drainage tube: when extrusion speed fluctuation causes tension mutation, spring is through telescopic deformation rapid absorption or release force, avoid the pipe material tensile deformation caused by tension sudden increase, wall thickness uneven, or skid, wrinkle caused by tension sudden decrease.

Description

Technical Field

[0001] This utility model relates to the technical field of drainage tube processing equipment, specifically a traction device for processing drainage tubes. Background Technology

[0002] In the processing of medical and industrial drainage tubes, traction equipment is a key piece of equipment connecting the extruder to subsequent processing steps. Its core function is to continuously traction the tubular blank extruded by the extruder at a stable speed, ensuring that the drainage tube maintains the preset dimensional accuracy (such as diameter and wall thickness) and structural integrity during the forming process, which directly affects the mechanical properties and safety of the final product.

[0003] Existing traction equipment for processing drainage pipes typically achieves traction by clamping the pipe with traction wheel sets. Its operational stability highly depends on the precise matching of the traction speed and the extrusion speed of the preceding extruder. However, in actual production, the extrusion speed of the extruder is easily affected by factors such as the molten state of the raw material (e.g., viscosity fluctuations), heating temperature stability, and slight deviations in screw speed, inevitably resulting in minor fluctuations. Because traditional traction equipment lacks targeted tension adjustment and buffering mechanisms, when the extrusion speed fluctuates, the traction tension will change abruptly. If the extrusion speed increases briefly, the tension on the pipe increases sharply, which can easily lead to overstretching of the pipe, resulting in defects such as reduced diameter, uneven wall thickness, or even local cracking. If the extrusion speed decreases briefly, the sudden decrease in tension can cause slippage between the pipe and the traction wheel, not only affecting traction accuracy but also potentially causing scratches on the pipe surface due to uneven friction. In severe cases, it can even lead to pipe wrinkles and deformation, reducing the product qualification rate. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a traction device for processing drainage tubes.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a traction device for processing drainage tubes, including a processing table, two transmission frames symmetrically arranged above the processing table, a pulley at the front and a pulley at the back of each transmission frame, the two pulleys being connected by a traction belt, and a rotating shaft rotatably connected to the transmission frame at both ends of the pulleys; a motor is fixedly arranged on one side of the transmission frame, and a drive shaft passing through the transmission frame and connected to the outer end of one of the rotating shafts is provided at the output end of the motor.

[0008] A fixed frame is fixedly installed at the front end of the transmission frame. A guide roller is installed between the two fixed frames at the front and back. The two ends of the guide roller are rotatably connected to the fixed frame. Tension adjustment components are provided at the upper end of the upper fixed frame and the lower end of the lower fixed frame. The tension adjustment components include a support frame and a tension adjustment roller. The support frame is fixed on the fixed frame, and the tension adjustment roller is located inside the support frame. Two L-shaped rods are symmetrically arranged at both ends of the tension adjustment roller. The lower end of the L-shaped rod is rotatably connected to the outer end of the tension adjustment roller. A fixed sleeve is fixedly installed at the upper end of the support frame. The fixed sleeve has a cavity. A spring is installed in the cavity. The upper end of the L-shaped rod vertically penetrates the support frame and is inserted into the cavity. The upper end of the L-shaped rod is connected to the lower end of the spring.

[0009] Furthermore, the improvements of this utility model include that the two ends of the rotating shaft are rotatably connected to the transmission frame via bearings, the two ends of the guide roller are rotatably connected to the fixed frame via bearings, and the bottom end of the L-shaped rod is rotatably connected to the outer end of the tension adjusting roller via bearings.

[0010] To make the spring more securely installed, the improvement of this utility model is that the top end of the spring is fixed inside the cavity, and the bottom end of the spring is fixed to the upper end of the L-shaped rod.

[0011] Furthermore, an improvement of this utility model is that the support frame and the fixing frame are an integrated structure.

[0012] To facilitate adjustment of the spacing between the two traction belts, the present invention includes the following improvements: multiple positioning frames are symmetrically arranged on both sides of the transmission frame; multiple first guide rods are vertically arranged symmetrically with respect to the transmission frame at the upper end of the processing table, penetrating the positioning frames; the positioning frames are slidably connected to the first guide rods; a locking rod is provided on the positioning frame, the locking rod penetrates the positioning frame and abuts against the first guide rod at one end; the locking rod is threadedly connected to the positioning frame; and a scale strip is provided on the outer wall of the first guide rod.

[0013] To improve the stability of the fixing frame during use, the present invention includes the following improvements: multiple second guide rods are vertically arranged symmetrically with respect to the upper end of the processing table and the outer side of the fixing frame is fixedly provided with an annular frame, which is penetrated by the second guide rods and slidably connected to them; the fixing frame and the annular frame are an integrated structure.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a traction device for processing drainage tubes, which has the following beneficial effects:

[0016] The tension adjustment component achieves dynamic compensation for the tension of the drainage tube through the synergistic effect of "L-shaped rod-spring-fixed sleeve": when the extrusion speed fluctuation causes a sudden change in tension, the spring quickly absorbs or releases the force through its extension and contraction deformation, avoiding the pipe stretching deformation and uneven wall thickness caused by a sudden increase in tension, or slippage and wrinkles caused by a sudden decrease in tension.

[0017] By sliding the positioning frame and the first guide rod together, and with the fixing effect of the locking rod, the spacing between the upper and lower transmission frames, the traction belt and the guide roller can be flexibly adjusted. With the scale bar on the first guide rod, it can accurately match the processing requirements of drainage pipes of different diameters, solving the problem of limited adaptability of traditional equipment. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 The main view;

[0020] Figure 3 This is a schematic diagram of the installation structure of the tension adjusting roller in this utility model;

[0021] In the diagram: 1. Processing table; 2. Transmission frame; 3. Motor; 4. Pulley; 5. Traction belt; 6. Positioning frame; 7. First guide rod; 8. Locking rod; 9. Fixing frame; 10. Guide roller; 11. Ring frame; 12. Second guide rod; 13. Support frame; 14. Tension adjusting roller; 15. L-shaped rod; 16. Fixing sleeve; 17. Spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This utility model proposes a traction device for processing drainage tubes, including a processing table 1. Two transmission frames 2 are symmetrically arranged on the upper part of the processing table 1. A pulley 4 is arranged at the front and back of each transmission frame 2. The two pulleys 4 are connected by a traction belt 5. The two ends of the pulleys 4 are provided with rotating shafts that are rotatably connected to the transmission frame 2. A motor 3 is fixedly arranged on one side of the transmission frame 2. The output end of the motor 3 is provided with a drive shaft that passes through the transmission frame 2 and is connected to the outer end of one of the rotating shafts.

[0024] The front end of the transmission frame 2 is fixedly provided with a fixing frame 9. A guide roller 10 is provided between the two fixing frames 9 at the front and back. The two ends of the guide roller 10 are rotatably connected to the fixing frame 9. The upper end of the upper fixing frame 9 and the lower end of the lower fixing frame 9 are provided with tension adjustment components. The tension adjustment components include a support frame 13 and a tension adjustment roller 14. The support frame 13 is fixed on the fixing frame 9, and the tension adjustment roller 14 is located inside the support frame 13. Two L-shaped rods 15 are symmetrically arranged at both ends of the tension adjustment roller 14. The lower end of the L-shaped rod 15 is rotatably connected to the outer end of the tension adjustment roller 14. A fixing sleeve 16 is fixedly provided at the upper end of the support frame 13. The fixing sleeve 16 has a cavity. A spring 17 is provided in the cavity. The upper end of the L-shaped rod 15 vertically penetrates the support frame 13 and is inserted into the cavity. The upper end of the L-shaped rod 15 is connected to the lower end of the spring 17.

[0025] Adjustment operation adapted to different pipe diameters:

[0026] Multiple positioning frames 6 are symmetrically arranged on both sides of the transmission frame 2. Multiple first guide rods 7 are vertically arranged symmetrically with respect to the transmission frame 2 at the upper end of the processing table 1, passing through the positioning frames 6. The positioning frames 6 are slidably connected to the first guide rods 7. The positioning frames 6 are provided with locking rods 8, which pass through the positioning frames 6 and abut against the first guide rods 7 at one end. The locking rods 8 are threadedly connected to the positioning frames 6. The outer wall of the first guide rods 7 is provided with scale strips.

[0027] The upper end of the processing table 1 is symmetrically and vertically arranged with multiple second guide rods 12 opposite to the fixed frame 9. A ring frame 11 is fixedly arranged on the outside of the fixed frame 9. The ring frame 11 is penetrated by the second guide rods 12 and is slidably connected to the second guide rods 12. The fixed frame 9 and the ring frame 11 are an integrated structure.

[0028] According to the diameter of the drainage tube to be processed, the distance between the traction and guiding structures needs to be adjusted: First, rotate the locking rod 8 on the positioning frame 6 counterclockwise to separate the locking rod 8 from the first guide rod 7, push the transmission frame 2 to drive the positioning frame 6 to slide along the first guide rod 7, and accurately control the distance between the upper and lower transmission frames 2 through the scale strip on the outer wall of the first guide rod 7, thereby adjusting the distance between the upper and lower traction belts 5 and the upper and lower guide rollers 10.

[0029] Simultaneously, the fixed frame 9 moves with the transmission frame 2, and its outer ring frame 11 slides along the second guide rod 12 to ensure that the fixed frame 9 moves stably without deviation. After adjustment, the locking rod 8 is rotated clockwise to press against the first guide rod 7, fixing the position of the positioning frame 6 and the transmission frame 2.

[0030] The process of drainage tube traction and tension buffering:

[0031] Traction start: The extruded blank from the previous extruder is passed sequentially between the front and rear guide rollers 10, between the tension adjusting roller 14 and the corresponding structure, and finally introduced between the upper and lower traction belts 5.

[0032] Start motor 3. Motor 3 drives the rotating shaft to rotate through the drive shaft. The rotating shaft drives the pulley 4 to rotate. The two pulleys 4 form synchronous transmission through the traction belt 5. The traction belt 5 clamps the blank of the drainage tube and conveys it forward.

[0033] Tension buffer adjustment:

[0034] The two ends of the rotating shaft are rotatably connected to the transmission frame 2 via bearings, the two ends of the guide roller 10 are rotatably connected to the fixed frame 9 via bearings, and the bottom end of the L-shaped rod 15 is rotatably connected to the outer end of the tension adjusting roller 14 via bearings.

[0035] The top end of the spring 17 is fixed inside the cavity, and the bottom end of the spring 17 is fixed to the upper end of the L-shaped rod 15.

[0036] The support frame 13 and the fixing frame 9 are an integrated structure.

[0037] When a slight fluctuation in the extrusion speed of the extruder causes a sudden change in the tension of the guide tube, the tension adjustment component responds automatically: if the tension increases suddenly, the guide tube pulls the tension adjustment roller 14, which drives the L-shaped rod 15 to move upward. The upper end of the L-shaped rod 15 compresses the spring 17 in the cavity of the fixing sleeve 16. The spring 17 deforms to absorb the excess tension. At this time, the upper end of the L-shaped rod 15 will slide in the cavity, and the outer wall of the L-shaped rod 15 will fit against the inner wall of the cavity.

[0038] If the tension drops suddenly, the spring 17 releases its elastic force to push the L-shaped rod 15 downward, causing the tension adjusting roller 14 to press against the drainage tube to compensate for the insufficient tension. During this process, the guide roller 10 rotates smoothly with the fixed frame 9 through the bearing, and the tension adjusting roller 14 rotates flexibly with the L-shaped rod 15 through the bearing, ensuring that there is no jamming or scratching during the delivery of the drainage tube.

[0039] Continuous and stable traction: The traction belt 5 continuously clamps and conveys the drainage tube forward. The transmission frame 2 maintains a stable position with the first guide rod 7 through the positioning frame 6. The fixing frame 9 maintains the guiding accuracy with the second guide rod 12 through the ring frame 11. Throughout the process, the tension adjustment component buffers tension fluctuations in real time to ensure that the drainage tube is always pulled to the subsequent process in a stable state.

[0040] The tension adjusting roller 14 and L-shaped rod 15, the guide roller 10 and fixed frame 9, and the rotating shaft and transmission frame 2 are all connected by bearings, which greatly reduces rotational friction, ensures smooth conveying of the diversion pipe, avoids surface scratches caused by excessive friction, and effectively improves the product's dimensional accuracy and structural integrity.

[0041] When adjusting the pipe diameter, the transmission frame 2 can be quickly fixed or moved by loosening and tightening the locking rod 8. Precise positioning can be achieved with the help of the scale strip, without the need for complicated tools, thus reducing the difficulty of operation. The motor 3 directly drives the rotating shaft and the pulley 4 through the drive shaft, which is simple and efficient and reduces power loss. The tension adjustment component automatically responds to tension changes throughout the process, without the need for real-time manual monitoring and adjustment, thus reducing the intensity of manual labor and improving production efficiency and stability.

[0042] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0043] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A traction device for processing drainage tubes, comprising a processing table (1), characterized in that: Two transmission frames (2) are symmetrically arranged above the processing table (1). Each transmission frame (2) has a pulley (4) at the front and back. The two pulleys (4) are connected by a traction belt (5). Both ends of the pulleys (4) are provided with rotating shafts that are rotatably connected to the transmission frame (2). A motor (3) is fixedly arranged on one side of the transmission frame (2). The output end of the motor (3) is provided with a drive shaft that passes through the transmission frame (2) and is connected to the outer end of one of the rotating shafts. The front end of the transmission frame (2) is fixedly provided with a fixing frame (9), and a guide roller (10) is provided between the two fixing frames (9) at the front and back. The two ends of the guide roller (10) are rotatably connected to the fixing frame (9). The upper end of the upper fixing frame (9) and the lower end of the lower fixing frame (9) are provided with tension adjustment components. The tension adjustment components include a support frame (13) and a tension adjustment roller (14). The support frame (13) is fixed on the fixing frame (9), and the tension adjustment roller (14) is positioned... Inside the support frame (13), two L-shaped rods (15) are symmetrically arranged at both ends of the tension adjusting roller (14). The lower end of the L-shaped rod (15) is rotatably connected to the outer end of the tension adjusting roller (14). A fixing sleeve (16) is fixedly installed at the upper end of the support frame (13). A cavity is provided inside the fixing sleeve (16), and a spring (17) is provided inside the cavity. The upper end of the L-shaped rod (15) vertically penetrates the support frame (13) and is inserted into the cavity. The upper end of the L-shaped rod (15) is connected to the lower end of the spring (17).

2. The traction device for processing drainage tubes according to claim 1, characterized in that: The two ends of the rotating shaft are rotatably connected to the transmission frame (2) through bearings, the two ends of the guide roller (10) are rotatably connected to the fixed frame (9) through bearings, and the bottom end of the L-shaped rod (15) is rotatably connected to the outer end of the tension adjusting roller (14) through bearings.

3. The traction device for processing drainage tubes according to claim 2, characterized in that: The top end of the spring (17) is fixed inside the cavity, and the bottom end of the spring (17) is fixed to the upper end of the L-shaped rod (15).

4. The traction device for processing drainage tubes according to claim 3, characterized in that: The support frame (13) and the fixing frame (9) are an integrated structure.

5. The traction device for processing drainage tubes according to claim 4, characterized in that: Multiple positioning frames (6) are symmetrically arranged on both sides of the transmission frame (2). Multiple first guide rods (7) that penetrate the positioning frames (6) are vertically arranged on the upper end of the processing table (1) symmetrically to the transmission frame (2). The positioning frames (6) are slidably connected to the first guide rods (7). The positioning frames (6) are provided with locking rods (8). The locking rods (8) penetrate the positioning frames (6) and one end abuts against the first guide rods (7). The locking rods (8) are threadedly connected to the positioning frames (6). The outer wall of the first guide rods (7) is provided with scale strips.

6. The traction device for processing drainage tubes according to claim 5, characterized in that: The upper end of the processing table (1) is vertically arranged with multiple second guide rods (12) symmetrical to the fixed frame (9). A ring frame (11) is fixedly arranged on the outside of the fixed frame (9). The ring frame (11) is penetrated by the second guide rods (12) and slidably connected to the second guide rods (12). The fixed frame (9) and the ring frame (11) are an integrated structure.

Images