Plastic production stretching device
By simplifying the user interface and integrating safety protection devices, the complexity and safety issues of traditional plastic production stretching equipment have been resolved, achieving an automated and safe production environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional plastic production stretching equipment is complex to operate, requires professional training, involves cumbersome mold replacement, has inadequate safety protection, and causes serious noise and dust pollution, affecting the efficiency and health of operators.
A plastic production stretching device was designed, comprising a mounting plate, a fixing plate, a motor, a transmission shaft, a stretching shaft, and a shaping mechanism. It features a simplified operating interface, integrated safety interlocking devices and an emergency braking system, and utilizes high-strength alloy materials and intelligent sensors to reduce noise and dust emissions.
The automated operation of the equipment has been achieved, reducing training costs, improving production flexibility and safety, reducing noise and dust pollution, and improving the working environment quality for operators.
Smart Images

Figure CN223998977U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of stretching devices for plastic production, and in particular to a stretching device for plastic production. Background Technology
[0002] With the acceleration of global industrialization and the continuous upgrading of the consumer market, plastics, with their excellent plasticity, corrosion resistance, and lightweight properties, have been widely used in many fields such as construction, electronics, automobiles, and packaging. In the construction sector, the use of plastic pipes and profiles is becoming increasingly common, and their good weather resistance and ease of installation have greatly promoted the development of the construction industry. In the electronics sector, plastics are used to manufacture the shells and internal components of various electronic products, meeting the requirements of electronic products for lightweighting and insulation. In the packaging industry, plastic films and plastic containers are indispensable. They not only protect the products but also enhance their display effect. Different application scenarios have significantly different requirements for the performance of plastics. For example, plastics used for food packaging must have good barrier properties and hygiene safety. Plastics used in automotive parts must possess both high strength and high temperature resistance. To meet these complex and diverse requirements, plastic production processes are constantly iterating. The stretching process, as a key step in improving plastic performance, can orient the plastic molecular chains, thereby significantly improving the strength, toughness, and transparency of the plastic. This makes plastic stretching equipment a core piece of equipment in the plastic processing. At the same time, the continuous emergence of new materials provides strong support for the improvement of stretching equipment. High-strength, lightweight alloy materials and high-performance engineering plastics can be used to manufacture key components of stretching equipment, such as stretching rollers and transmission components, improving the rigidity and wear resistance of the equipment while reducing its weight and operating energy consumption. In addition, new sensor materials and smart materials have also laid the foundation for the intelligent upgrading of stretching equipment.
[0003] Currently, most plastic stretching equipment on the market consists of power and transmission components and control and monitoring components. The operating interface of traditional stretching equipment is often designed to be quite complex, filled with various buttons, knobs, and instruments. Operators need extensive professional training to master the operation methods, which not only increases the training costs for enterprises but also reduces the work efficiency of operators. In addition, when producing plastic products of different specifications, the process of changing molds is cumbersome and time-consuming, requiring operators to have a high level of skill and rich experience. This, to some extent, limits the flexibility and diversity of production. In terms of safety, the protective facilities of traditional stretching equipment are not perfect, lacking effective safety interlock devices and emergency braking systems. If operators misoperate or the equipment suddenly malfunctions during operation, they can easily come into contact with high-speed moving parts, such as stretching rollers and transmission chains, which poses a serious threat to personal safety. At the same time, traditional stretching equipment may also generate a lot of noise and dust during operation, which has an adverse impact on the health of operators and the working environment. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a plastic production stretching device, which aims to improve the problem of insufficient automation in traditional plastic production stretching devices in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a plastic production stretching device, comprising a mounting plate, a fixing plate fixedly connected to the top right side of the mounting plate, a second motor fixedly connected to the top front side of the right end of the outer wall of the fixing plate, a second transmission shaft fixedly connected to the output end of the second motor, a fixing pressure strip slidably connected to the middle of the outer wall of the second transmission shaft, threaded shafts threadedly connected to both ends of the inner wall of the fixing pressure strip, the bottoms of multiple threaded shafts threadedly connected to the front and rear sides of the top of the second transmission shaft, a second stretching shaft rotatably connected to the top left end of the inner wall of the mounting plate near the middle, a second rotating shaft rotatably connected to the top left end of the inner wall of the fixing plate, a first stretching shaft rotatably connected to the bottom left end of the inner wall of the mounting plate, and a shaping mechanism provided on the second stretching shaft for shaping liquid plastic.
[0006] As a further description of the above technical solution:
[0007] The shaping mechanism includes a motor, the bottom of which is fixedly connected to the top front left end of the mounting plate. The output end of the motor is fixedly connected to a transmission shaft. A transmission plate is rotatably connected to the outer wall of the transmission shaft. A support frame is fixedly connected to the top surface of the mounting plate near the center. Fixed sleeves are fixedly connected to the bottom front and rear sides of the outer wall of the support frame. Springs are fixedly connected to the top of the inner walls of multiple fixed sleeves. A connecting shaft is fixedly connected to the other end of the spring. A rotating shaft is rotatably connected between adjacent connecting shafts.
[0008] As a further description of the above technical solution:
[0009] A fixed platform is fixedly connected to the top left end of the mounting plate, and a guide plate is fixedly connected to the top left end of the fixed platform.
[0010] As a further description of the above technical solution:
[0011] Liquid inlet pipes are installed on the front and rear sides of the top of the guide plate, and baffles are fixedly connected to the top left and right ends of the mounting plate near the edge.
[0012] As a further description of the above technical solution:
[0013] The top left end of the fixed platform is fixedly connected to handles on both the front and rear sides, and the outer walls of the multiple handles are fixedly connected to anti-slip sleeves.
[0014] As a further description of the above technical solution:
[0015] The top left and right sides of the outer wall of the support frame are fixedly connected with soft pads, and the front and rear ends of the outer wall of the support frame are fixedly connected with protective pads.
[0016] As a further description of the above technical solution:
[0017] Protective plates are fixedly connected to the front and rear sides of the outer wall of the fixed platform, and protective strips are fixedly connected to the front and rear sides of the center of the top surface of the fixed platform.
[0018] As a further description of the above technical solution:
[0019] A controller is fixedly connected to the front side of the center of the top surface of the mounting plate. The controller is electrically connected to motor one and motor two respectively. Protective strips are fixedly connected to the front and rear sides of the top of the outer wall of the mounting plate.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, a fixing plate is fixedly connected to the top right side of the mounting plate, and a fixing plate is also fixed to the top right end of the front side of the outer wall of the fixing plate. Threaded shafts are threaded to the front and rear ends of the fixing pressure strip. A tensioning shaft is rotatably connected to the right side of the rotating shaft two. The tensioning shaft two can drive the plastic strip after shaping to stretch between the rotating shaft two and the tensioning shaft two. At the same time, it passes through the outer wall of the bottom rotating tensioning shaft one and is fixed to the outer wall of the transmission shaft two, thereby realizing continuous stretching and winding to meet production needs.
[0022] 2. In this utility model, in order to shape the liquid plastic liquid, a motor is fixed on the front left side of the top of the mounting plate. The output end of the motor can be driven by a transmission shaft. The transmission plate on the outer wall of the transmission shaft drives the transmission. A spring is fixedly connected to the inner wall of the fixed sleeve, and the other end of the spring is fixed to the connecting shaft. Under the elasticity of the spring, the rotating shaft can be driven to shape the liquid plastic liquid and also to squeeze and stretch it, thereby meeting the usage requirements. Attached Figure Description
[0023] Figure 1 This is a front perspective view of a mounting plate for a plastic production stretching device proposed in this utility model.
[0024] Figure 2 This is a structural diagram of a motor for a plastic production stretching device proposed in this utility model;
[0025] Figure 3 This is a partial structural diagram of the transmission plate of a plastic production stretching device proposed in this utility model;
[0026] Figure 4 This is a partial structural diagram of a spring in a plastic production stretching device according to the present invention.
[0027] Figure 5 This is a schematic diagram of the structure of the stretching shaft of a plastic production stretching device proposed in this utility model.
[0028] Legend:
[0029] 1. Mounting plate; 2. Shaping mechanism; 201. Motor 1; 202. Drive shaft 1; 203. Transmission plate; 204. Support frame; 205. Fixing sleeve; 206. Spring; 207. Connecting shaft; 208. Rotating shaft 1; 3. Fixing plate; 4. Motor 2; 5. Drive shaft 2; 6. Tensioning shaft 1; 7. Fixing pressure strip; 8. Threaded shaft; 9. Rotating shaft 2; 10. Tensioning shaft 2; 11. Soft pad; 12. Fixing platform; 13. Baffle; 14. Handle; 15. Anti-slip sleeve; 16. Liquid inlet pipe; 17. Protective strip; 18. Protective plate; 19. Controller; 20. Guide plate; 21. Protective strip; 22. Protective pad. Detailed Implementation
[0030] 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.
[0031] Please see the appendix Figure 3 - Appendix Figure 5 This utility model provides an embodiment of a plastic production stretching device, including a mounting plate 1, a fixing plate 3 fixedly connected to the top right side of the mounting plate 1, a motor 4 fixedly connected to the top front side of the right end of the outer wall of the fixing plate 3, a transmission shaft 5 fixedly connected to the output end of the motor 4, a fixing pressure strip 7 slidably connected to the middle of the outer wall of the transmission shaft 5, threaded shafts 8 threadedly connected to both ends of the inner wall of the fixing pressure strip 7, the bottom of multiple threaded shafts 8 threadedly connected to the front and rear sides of the top of the transmission shaft 5, a stretching shaft 10 rotatably connected to the top left end of the inner wall of the mounting plate 1 near the middle, the bottom of these threaded shafts 8 being threadedly connected to the front and rear sides of the top of the transmission shaft 5, in addition, a stretching shaft 10 is rotatably connected to the top left end of the inner wall of the mounting plate 1 near the middle, a rotating shaft 9 rotatably connected to the top left end of the inner wall of the fixing plate 3, a stretching shaft 6 rotatably connected to the bottom left end of the inner wall of the mounting plate 1, and a shaping mechanism 2 is provided on the stretching shaft 10 for shaping liquid plastic;
[0032] Specifically, a fixing plate 3 is fixedly connected to the top right side of the mounting plate 1. A motor 4 is specifically designed to be fixedly connected to the front part of the top right end of the outer wall of this fixing plate 3. The output end of the motor 4 is fixedly connected to a transmission shaft 5. A slidingly connected fixing strip 7 is designed in the middle of the outer wall of the transmission shaft 5. Multiple threaded shafts 8 are threaded to both ends of the inner wall of this fixing strip 7. Simultaneously, a rotating shaft 9 is rotatably connected to the top left side of the inner wall of the fixing plate 3, and a tension shaft 6 is rotatably connected to the bottom left side of the inner wall of the mounting plate 1. It is worth noting that a shaping mechanism 2 is provided on the tension shaft 6, which is used for shaping liquid plastic.
[0033] Please see the appendix Figure 1 - Appendix Figure 3The shaping mechanism 2 includes a motor 201. The bottom of the motor 201 is fixedly connected to the top front left end of the mounting plate 1. The output end of the motor 201 is fixedly connected to a transmission shaft 202. The outer wall of the transmission shaft 202 is rotatably connected to a transmission plate 203. The top surface of the mounting plate 1 is fixedly connected to a support frame 204 near the middle. The bottom front and rear sides of the outer wall of the support frame 204 are fixedly connected to fixed sleeves 205. The top of the inner wall of multiple fixed sleeves 205 is fixedly connected to a spring 206. The other end of the spring 206 is fixedly connected to a connecting shaft 207. The adjacent two connecting shafts 207 are rotatably connected to a rotating shaft 208.
[0034] Specifically, the output end of motor 201 is designed to be fixedly connected to drive shaft 202. Transmission plate 203 is rotatably connected to the outer wall of drive shaft 202. This design allows the transmission plate to rotate with the rotation of drive shaft. In addition, a support frame 204 is fixedly connected to the top surface of mounting plate 1 near its center. Fixed sleeves 205 are fixedly connected to the bottom of the outer wall of support frame 204 and to both the front and rear sides. Springs 206 are fixedly connected to the top of the inner wall of these fixed sleeves 205. The other end of spring 206 is fixedly connected to connecting shaft 207. It is worth noting that a rotating shaft 208 is rotatably connected between adjacent connecting shafts 207. This design ensures that rotating shaft 208 can rotate freely between connecting shafts 207, thereby realizing the flexible operation of the transmission system.
[0035] Please see the appendix Figure 1 - Appendix Figure 3 A fixed platform 12 is fixedly connected to the top left end of the mounting plate 1. A guide plate 20 is fixedly connected to the top left end of the fixed platform 12. Liquid inlet pipes 16 are installed on the front and rear sides of the top of the guide plate 20. Baffles 13 are fixedly connected to the top left and right ends of the mounting plate 1 near the edge. Handles 14 are fixedly connected to the front and rear sides of the top left end of the fixed platform 12. The design of these handles 14 allows users to easily move and operate the entire device. Anti-slip sleeves 15 are fixedly connected to the outer walls of multiple handles 14.
[0036] Specifically, the top left end of the mounting plate 1 is designed to be fixedly connected to the fixed platform 12. The top left end of the fixed platform 12 is further connected to the guide plate 20. The function of the guide plate 20 is to guide the liquid flow to a specific area to achieve more efficient liquid treatment. Liquid inlet pipes 16 are installed on the front and rear sides of the top of the guide plate 20. In order to improve the comfort and safety during use, anti-slip sleeves 15 are fixedly connected to the outer walls of multiple handles 14. These anti-slip sleeves 15 can be made of rubber or other materials with good friction coefficient to prevent hand slippage and improve grip stability.
[0037] Please see the appendix Figure 1- Appendix Figure 3 The support frame 204 has soft pads 11 fixedly connected to the top left and right sides of the outer wall, and protective pads 22 fixedly connected to the front and rear ends of the outer wall. The fixed platform 12 has protective plates 18 fixedly connected to the front and rear sides of the outer wall. The fixed platform 12 has protective strips 17 fixedly connected to the front and rear sides of the top center of the top surface. The fixed platform 12 has protective strips 17 fixedly connected to the front and rear sides of the top center of the top surface. These protective strips 17 are designed to provide additional safety protection during equipment operation to prevent operators from accidentally contacting moving parts. The mounting plate 1 has a controller 19 fixedly connected to the front side of the top center of the top surface. The controller 19 is electrically connected to motor 1 201 and motor 2 4 respectively. The fixed plate 3 has protective strips 21 fixedly connected to the front and rear sides of the top of the outer wall.
[0038] Specifically, soft pads 11 are fixedly connected to the top left and right sides of the outer wall of the support frame 204. These pads 11 are designed to provide additional support and protection to prevent damage to the support frame 204 during use. Protective pads 22 are also fixedly connected to the front and rear ends of the outer wall of the support frame 204. These protective pads 22 effectively reduce collisions and friction that may occur during movement or transportation, thereby protecting the integrity of the support frame 204. Furthermore, protective plates 18 are fixedly connected to the front and rear sides of the outer wall of the fixed platform 12. These protective plates 18 not only enhance the stability of the platform but also... The structural strength of the fixed platform 12 also prevents external objects from damaging it. A controller 19 is fixedly connected to the front side of the top center of the mounting plate 1. The controller 19 is the control core of the entire equipment. The controller 19 is electrically connected to motor 1 201 and motor 2 4 respectively, ensuring precise control of the motors and stable operation of the equipment. Finally, protective strips 21 are fixedly connected to the front and rear sides of the top of the outer wall of the fixed plate 3. The function of these protective strips 21 is similar to that of the protective pads 22 on the support frame 204, which aims to reduce wear and damage during use and extend the service life of the equipment.
[0039] Working principle: A fixing plate 3 is fixedly connected to the top right side of the mounting plate 1. At the same time, a fixing plate 3 is fixed to the top right side of the front side of the outer wall of the fixing plate 3. When the fixing plate 3 is driven, it can drive the transmission shaft 5 fixed at its output end to rotate. At the same time, a fixing pressure strip 7 is slidably connected to the top of the outer wall of the transmission shaft 5. Threaded shafts 8 are threaded to the front and rear ends of the fixing pressure strip 7. By rotating the threaded shaft 8, the plastic strip fixed on the transmission shaft 5 can be driven to rotate by the motor 4. At the same time, a rotating shaft 9 is rotatably connected to the top left side of the inner wall of the fixing plate 3. A stretching shaft 10 is rotatably connected to the right side of the rotating shaft 9. The stretching shaft 10 can drive the plastic strip after shaping to stretch between the rotating shaft 9 and the stretching shaft 10. At the same time, it passes through the outer wall of the bottom rotating stretching shaft 6 and is fixed to the outer wall of the transmission shaft 5, thereby realizing continuous stretching and winding to meet production needs.
[0040] To shape the liquid plastic, a motor 201 is fixed to the front left side of the top of the mounting plate 1. The output end of the motor 201 can be driven by a transmission shaft 202. The transmission plate 203 on the outer wall of the transmission shaft 202 is driven by the transmission shaft 202. At the same time, the liquid flowing from the guide plate 20 to the transmission plate 203 can be shaped by the fixed sleeves 205 installed on the front and rear sides of the bottom of the outer wall of the support frame 204. A spring 206 is fixedly connected to the inner wall of the fixed sleeve 205, and the other end of the spring 206 is fixed to the connecting shaft 207. Under the elasticity of the spring 206, the rotating shaft 208 can be driven to shape the liquid plastic and also to squeeze and stretch it, thereby meeting the usage requirements.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A plastic production stretching device comprising a mounting plate (1), characterized in that: The top right side of mounting plate (1) is fixedly connected with fixed plate (3), the outer wall right end top front side of fixed plate (3) is fixedly connected with motor two (4), the output end of motor two (4) is fixedly connected with transmission shaft two (5), the outer wall middle part of transmission shaft two (5) is slidably connected with fixed pressing strip (7), the inner wall both ends of fixed pressing strip (7) are threadedly connected with threaded shaft (8), the bottom of multiple threaded shafts (8) is threadedly connected on the top front and back sides of transmission shaft two (5), the inner wall left side top end of mounting plate (1) is rotatably connected with stretching shaft two (10) near the middle part, the inner wall left side top of fixed plate (3) is rotatably connected with rotating shaft two (9), the inner wall left side bottom of mounting plate (1) is rotatably connected with stretching shaft one (6), the setting of stretching shaft two (10) has shaping mechanism (2), shaping mechanism (2) is used for the shaping of liquid plastic.
2. A plastic production stretching device according to claim 1, characterized in that: The top right side of mounting plate (1) is fixedly connected with fixed plate (3), the outer wall right end top front side of fixed plate (3) is fixedly connected with motor two (4), the output end of motor two (4) is fixedly connected with transmission shaft two (5), the outer wall middle part of transmission shaft two (5) is slidably connected with fixed pressing strip (7), the inner wall both ends of fixed pressing strip (7) are threadedly connected with threaded shaft (8), the bottom of multiple threaded shafts (8) is threadedly connected on the top front and back sides of transmission shaft two (5), the inner wall left side top end of mounting plate (1) is rotatably connected with stretching shaft two (10) near the middle part, the inner wall left side top of fixed plate (3) is rotatably connected with rotating shaft two (9), the inner wall left side bottom of mounting plate (1) is rotatably connected with stretching shaft one (6), the setting of stretching shaft two (10) has shaping mechanism (2), shaping mechanism (2) is used for the shaping of liquid plastic.
3. A plastic production stretching device according to claim 1, characterized in that: The top left end of mounting plate (1) is fixedly connected with fixed table (12), and the top left end of fixed table (12) is fixedly connected with guide plate (20).
4. A plastic production stretching device according to claim 3, characterized in that: The top front and back sides of guide plate (20) are provided with liquid inlet pipes (16), and the top left and right ends of mounting plate (1) are fixedly connected with baffle plates (13) near the edges.
5. A plastic production stretching device according to claim 3, characterized in that: The top left end front and back sides of fixed table (12) are fixedly connected with handles (14), and the outer walls of multiple handles (14) are fixedly connected with anti-skid sleeves (15).
6. A plastic production stretching device according to claim 2, characterized in that: The outer wall top left and right sides of support frame (204) are fixedly connected with soft pads (11), and the outer wall front and back ends of support frame (204) are fixedly connected with protection pads (22).
7. A plastic production stretching device according to claim 3, characterized in that: The outer wall front and back sides of fixed table (12) are fixedly connected with protection plates (18), and the top middle front and back sides of fixed table (12) are fixedly connected with protection strips (17).
8. A plastic production stretching device according to claim 1, characterized in that: The top middle front side of mounting plate (1) is fixedly connected with controller (19), and controller (19) is electrically connected with motor one (201) and motor two (4) respectively, and the outer wall top front and back sides of fixed plate (3) are fixedly connected with protection strips (21).