Fully automatic tube drawing machine
The design of the fully automatic tube drawing machine realizes the automated drawing of plastic tube spirals, solving the problems of high cost and low efficiency of manual spiral drawing, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HONGLIN ELECTRIC TECHNOLOGY CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-02
AI Technical Summary
In the existing plastic pipe production process, the manual spiral drawing method requires a lot of manpower, resulting in high production costs, low efficiency, and poor product uniformity.
The design incorporates a fully automatic tube drawing machine, including a drawing mechanism and a rotating mechanism. It utilizes X- and Y-axis linear modules, a drawing motor, and a rigid shaft to achieve automated drawing of the spiral strip. Combined with material shortage and defective product identification sensors, it ensures product quality.
The automated pulling of the spiral strip of the plastic tube has been realized, which has improved production efficiency, reduced production costs, and improved product qualification rate and dimensional uniformity.
Smart Images

Figure CN224311267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a fully automatic pipe drawing machine, belonging to the field of plastic pipe production technology in the power industry. Background Technology
[0002] In the power industry, the plastic tubing used for cold shrink silicone tubing, cold shrink terminal joints, and cold shrink intermediate joints requires the spiral strip of the plastic tubing to be drawn from the inner pressure end to the other end during production due to process requirements.
[0003] Currently, the spiral strip extraction method used for this type of product is to manually pull the spiral strip from the inner pressure end of the plastic tube to the other end using either a hand pull or a wire hook. This production process requires a lot of manpower, has high production costs, produces products with poor uniformity, is inefficient in mass production, and can easily cause hand fatigue for operators during long working hours. Utility Model Content
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a fully automatic tube pulling machine to realize the automatic pulling of the spiral strip of plastic tube, improve production efficiency, ensure the uniformity of product size, improve the product qualification rate, and reduce production costs.
[0005] The fully automatic tube drawing machine of this utility model includes a frame, a tube drawing mechanism and a rotating mechanism installed on the top of the frame, the tube drawing mechanism is located on one side of the rotating mechanism, and a hopper is provided above the rotating mechanism;
[0006] The strip-drawing mechanism includes an X-axis linear module, a Y-axis linear module, a strip-drawing motor, and a rigid shaft; the Y-axis linear module is fixed on the slide of the X-axis linear module, the strip-drawing motor is fixed on the slide of the Y-axis linear module, and the rigid shaft is connected to the output shaft of the strip-drawing motor.
[0007] The rotating mechanism includes a support plate A, a support plate B, a rotating frame, and a rotating motor. The two sides of the rotating frame are rotatably connected to the support plate A and the support plate B, respectively, and one end of the rotating frame is driven by the rotating motor. The two sides of the rotating frame are provided with grooved indexing plates, which are used to rotate and convey the plastic tube.
[0008] The technical solution of this utility model is to provide a fully automatic tube drawing machine. Plastic tubes are put into the hopper, and a rotary motor drives the grooved indexing plate to rotate. During the rotation of the grooved indexing plate, the plastic tubes fall into the grooves of the grooved indexing plate under the action of gravity and are transported by the grooved indexing plate to the drawing station. The X-axis linear module, the Y-axis linear module and the drawing motor work together to drive the rigid shaft to draw the spiral strip from the inner pressure end of the plastic tube to the other end, thus completing the drawing.
[0009] Preferably, the rigid shaft has a clamp-shaped groove machined at its head end for clamping the spiral strip of the plastic tube.
[0010] Preferably, the support plate A and support plate B are both fixed above the frame, and support plate C is also fixed on the frame. A clamping cylinder is installed on the side of support plate C near the drawing mechanism. The clamping cylinder is used to clamp the plastic tube in the groove of the grooved indexing plate to prevent displacement during drawing.
[0011] Furthermore, a material shortage detection sensor is installed on the support plate C. The material shortage detection sensor is located on the other side of the clamping cylinder on the support plate C and is used to detect whether there is material in the groove.
[0012] Furthermore, a defect screening sensor is also installed on the frame to identify defective shorter plastic tubes.
[0013] Furthermore, the top plate of the frame is provided with a material discharge port, and a defective product channel plate is provided below the material discharge port. A channel switching cylinder is installed below the defective product channel plate. The first end of the channel switching cylinder is hinged to a switching baffle, and the switching baffle is also hinged to the defective product channel plate. A collection box for collecting qualified products can be placed below the switching baffle.
[0014] The advantages of this utility model compared with the prior art are:
[0015] The fully automatic tube drawing machine described in this utility model achieves automated drawing of plastic tube spirals by setting up a drawing mechanism and a rotating mechanism, eliminating manual operation, improving production efficiency, reducing production costs, and improving product qualification rate by setting up a defective product screening sensor, ensuring product size uniformity. Attached Figure Description
[0016] Figure 1 This is one of the structural schematic diagrams of this utility model;
[0017] Figure 2 This is the second structural schematic diagram of this utility model;
[0018] Figure 3 This is the third structural schematic diagram of this utility model;
[0019] Figure 4 This is a schematic diagram of the drawing mechanism;
[0020] Figure 5 This is one of the structural schematic diagrams of a rotating mechanism;
[0021] Figure 6 This is the second schematic diagram of the rotating mechanism.
[0022] In the diagram: 1. Hopper; 2. Rotating mechanism; 21. Support plate A; 22. Grooved indexing plate; 23. Clamping cylinder; 24. Support plate C; 25. Rotary motor; 26. Support plate B; 3. Defective product screening sensor; 4. Frame; 41. Material discharge port; 42. Defective product channel plate; 43. Switching baffle; 44. Channel switching cylinder; 5. Strip drawing mechanism; 51. Y-axis linear module; 52. Rigid shaft; 53. X-axis linear module; 54. Strip drawing motor; 6. Material shortage detection sensor. Detailed Implementation
[0023] The present invention will be further described below with reference to specific embodiments.
[0024] like Figures 1-6 As shown, this embodiment is achieved through the following technical solution: it includes a frame 4, a strip drawing mechanism 5 and a rotating mechanism 2 are installed on the top of the frame 4, the strip drawing mechanism 5 is located on one side of the rotating mechanism 2, and a hopper 1 is provided above the rotating mechanism 2;
[0025] The strip-pulling mechanism 5 includes an X-axis linear module 53, a Y-axis linear module 51, a strip-pulling motor 54, and a rigid shaft 52. The Y-axis linear module 51 is fixed on the slide of the X-axis linear module 53, the strip-pulling motor 54 is fixed on the slide of the Y-axis linear module 51, and the rigid shaft 52 is connected to the output shaft of the strip-pulling motor 54. The strip-pulling motor 54 can drive the rigid shaft 52 to rotate.
[0026] The rotating mechanism 2 includes a support plate A21, a support plate B26, a rotating frame, and a rotating motor 25. The two sides of the rotating frame are rotatably connected to the support plate A21 and the support plate B26 respectively, and one end of the rotating frame is drivenly connected to the rotating motor 25. The two sides of the rotating frame are provided with grooved indexing plates 22, which are used to rotate and convey plastic pipes.
[0027] In this embodiment, the rigid shaft 52 has a clamp-shaped groove machined at its first end for clamping the spiral strip of the plastic tube. The support plates A21 and B26 are both fixed above the frame 4. The frame 4 is also fixed with a support plate C24. A clamping cylinder 23 is installed on the support plate C24 near the strip-drawing mechanism 5. The clamping cylinder 23 is used to clamp the plastic tube in the groove of the grooved indexing plate 22 to prevent displacement during strip drawing.
[0028] A material shortage detection sensor 6 is installed on the support plate C24. Located on the other side of the clamping cylinder on the support plate C24, the sensor detects whether there is material in the groove. A defective product screening sensor 3 is also installed on the frame 4 to identify shorter defective plastic tubes. A material discharge port 41 is provided on the top plate of the frame 4. Below the material discharge port 41 is a defective product channel plate 42. A channel switching cylinder 44 is installed below the defective product channel plate 42. The head of the channel switching cylinder 44 is hinged to a switching baffle 43, which is also hinged to the defective product channel plate 42. A collection box can be placed below the switching baffle 43 to collect qualified products.
[0029] The working process of this utility model is as follows:
[0030] 1. The plastic tube is put into the hopper 1. The rotary motor 25 drives the grooved indexing plate 22 to rotate. During the rotation of the grooved indexing plate 22, the plastic tube falls into the groove of the grooved indexing plate 22 under the action of gravity. The grooved indexing plate 22 rotates to transport the plastic tube.
[0031] 2. When the grooved indexing plate 22 conveys the plastic tube to the drawing station, the clamping cylinder 23 pushes out to clamp the plastic tube.
[0032] 3. The Y-axis linear module 51 drives the rigid shaft 52 to move, causing the clamping groove of the rigid shaft 52 to clamp the plastic tube wall. The drawing motor 54 drives the rigid shaft 52 to rotate a certain angle, breaking open the spiral strip of the plastic tube. Then, the X-axis linear module 53 moves, causing the rigid shaft 52 to clamp the spiral strip and move it to the center of the plastic tube. The Y-axis linear module 51 and the drawing motor 54 move simultaneously, drawing the spiral strip of the plastic tube from the inner pressure end of the plastic tube to the other end, completing the drawing process.
[0033] 4. The plastic tube continues to rotate and finally falls into the collection box from the discharge port 41;
[0034] 5. If the plastic tube gets stuck during the rotating conveying process and does not fall into the groove of the grooved indexing plate 22, the material shortage detection sensor will detect that there is no material in the groove and there will be no further mechanical action. The grooved indexing plate 22 will continue to rotate until it detects that there is material in the groove before starting the next action.
[0035] 6. If a short plastic tube defect occurs during the stripping process, and the stripping end of the defective tube cannot reach the designed stripping position, the clamping groove of the rigid shaft 52 cannot clamp the end of the plastic tube. When this defective plastic tube that has not been stripped rotates to the defective product screening sensor 3 station, the sensor identifies the defective product. At this time, the channel switching cylinder 44 is activated, which lifts the switching baffle 43. After the defective product falls, it rolls down along the defective product channel plate 42 to the defective product box, thus achieving defective product screening.
Claims
1. A fully automatic tube extraction machine, characterized in that, Includes a frame (4), with a strip drawing mechanism (5) and a rotating mechanism (2) installed on top of the frame (4). The strip drawing mechanism (5) is located on one side of the rotating mechanism (2), and a hopper (1) is provided above the rotating mechanism (2). The strip-pulling mechanism (5) includes an X-axis linear module (53), a Y-axis linear module (51), a strip-pulling motor (54), and a rigid shaft (52); the Y-axis linear module (51) is fixed on the slide of the X-axis linear module (53), the strip-pulling motor (54) is fixed on the slide of the Y-axis linear module (51), and the rigid shaft (52) is connected to the output shaft of the strip-pulling motor (54) for transmission. The rotating mechanism (2) includes a support plate A (21), a support plate B (26), a rotating frame and a rotating motor (25). The two sides of the rotating frame are rotatably connected to the support plate A (21) and the support plate B (26) respectively, and one end of the rotating frame is drivenly connected to the rotating motor (25). The two sides of the rotating frame are provided with grooved indexing plates (22).
2. The fully automatic tube extraction machine according to claim 1, characterized in that, The rigid shaft (52) has a clamp-shaped groove at its head end for clamping the spiral strip of the plastic tube.
3. The fully automatic tube extraction machine according to claim 1, characterized in that, The support plates A (21) and B (26) are fixed above the frame (4). The frame (4) is also fixed with a support plate C (24). A pressing cylinder (23) is installed on the side of the support plate C (24) near the drawing mechanism (5).
4. The fully automatic tube extraction machine according to claim 3, characterized in that, A material shortage detection sensor (6) is installed on the support plate C (24), and the material shortage detection sensor (6) is located on the other side of the clamping cylinder (23) on the support plate C (24).
5. The fully automatic tube extraction machine according to claim 3, characterized in that, The frame (4) is also equipped with a defect screening sensor (3).
6. The fully automatic tube extraction machine according to claim 5, characterized in that, The top plate of the frame (4) is provided with a material discharge port (41), and a defective product channel plate (42) is provided below the material discharge port (41). A channel switching cylinder (44) is installed below the defective product channel plate (42). The head end of the channel switching cylinder (44) is hinged to the switching baffle (43), and the switching baffle (43) is also hinged to the defective product channel plate (42).