High-precision cable insulation extrusion device
By introducing a combination structure of L-shaped frame, storage box and rotating shaft into the extrusion device, the problem of uneven raw material mixing is solved, high-precision extrusion of insulation layer is achieved, and the safety and service life of cable are improved.
Patent Information
- Application Number
- CN202520541840.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing extruders have difficulty mixing multiple raw materials evenly, resulting in poor insulation quality and affecting the safety performance and service life of cables.
It adopts a combination structure of L-shaped frame, storage box, drive motor, rotating shaft and stirring rod. The drive motor drives the spiral pusher plate and stirring rod to rotate, so as to achieve full mixing and conveying of raw materials and ensure the uniformity of raw materials entering the extrusion tube.
This improved the mixing accuracy and quality of the insulation layer, thereby enhancing the safety performance and service life of the cable.
Smart Images

Figure CN223941596U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extrusion equipment technology, and in particular to a high-precision cable insulation extrusion device. Background Technology
[0002] Cables are typically made up of several or groups of conductors twisted together like ropes, with each group of conductors insulated from each other. They are often twisted around a central core and the entire surface is covered with an insulation layer. During cable manufacturing, an extruder is used to wrap the outer surface of the cable conductor with this insulation layer. When producing cable insulation using existing extruders, various granular raw materials are generally first poured into the extruder barrel. Then, the materials are cut, mixed, heated, and melted by the rotating screw in the extrusion tube. Finally, the mixture is extruded through an extrusion die and wrapped around the cable conductor.
[0003] However, in existing extruders, it is difficult to mix multiple raw materials evenly by cutting and mixing them with the spiral extrusion rod in the extrusion tube alone. This results in poor quality of the extruded insulation layer and a rough surface, which reduces the safety performance and service life of the cable. Therefore, we propose a high-precision cable insulation extrusion device to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-precision cable insulation extrusion device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-precision cable insulation extrusion device includes an L-shaped frame. An extrusion tube is fixedly mounted on one side of the L-shaped frame, with an extrusion head at one end. An L-shaped reinforcing plate is fixedly mounted on one side of the L-shaped frame and is fixedly connected to it. A storage bin is fixedly mounted on the top of the L-shaped reinforcing plate, and a feed pipe is installed at the bottom of the storage bin, communicating with the extrusion tube. A drive motor is fixedly mounted on one side of the L-shaped reinforcing plate, and a drive shaft is fixedly mounted on the output shaft of the drive motor, extending into the extrusion tube. A spiral pusher plate is fixedly mounted on the drive shaft. A rotating shaft is rotatably mounted on the top and bottom inner walls of the storage bin, with a stirring rod fixedly mounted on the rotating shaft. A second rotating shaft is rotatably mounted on the top inner wall of the storage bin, with multiple stirring rods fixedly mounted on the second rotating shaft.
[0007] Preferably, the bottom end of the second rotating shaft extends into the feed pipe, and a spiral pusher plate is fixedly installed on the second rotating shaft.
[0008] Preferably, the bottom end of the first rotating shaft extends to the bottom of the storage box, and a transmission mechanism is provided between the first rotating shaft and the drive shaft.
[0009] Preferably, the transmission mechanism includes a driving bevel gear and a driven bevel gear. The driving bevel gear is fixedly mounted on the driving shaft, and the driven bevel gear is fixedly mounted on the rotating shaft. The driving bevel gear and the driven bevel gear mesh with each other.
[0010] Preferably, a control box is fixedly installed on the top of the storage box, and the top ends of rotating shaft one and rotating shaft two are rotatably installed on the inner wall of the top of the control box, and a linkage mechanism is provided between rotating shaft one and rotating shaft two.
[0011] Preferably, the linkage mechanism includes a first pulley, a second pulley, and a belt. The first pulley is fixedly mounted on a first rotating shaft, the second pulley is fixedly mounted on a second rotating shaft, and the same belt is used for transmission between the first pulley and the second pulley.
[0012] Preferably, the top of the storage box is provided with a feed inlet, and the feed inlet is equipped with a sealing plug.
[0013] Preferably, a guide seat is installed inside the storage box, and the guide seat is adapted to the feed pipe.
[0014] The beneficial effects of this utility model are:
[0015] 1. When high-precision cable insulation is extruded, the drive motor, drive shaft, drive bevel gear and driven bevel gear work together to drive the rotating shaft to rotate, and the rotating shaft to drive the stirring rod to rotate, so as to achieve the purpose of preliminary stirring and mixing of the raw materials in the storage box.
[0016] 2. With the cooperation of pulley one, pulley two and belt, rotating shaft one can drive rotating shaft two to rotate, and rotating shaft two can drive stirring rod two to rotate. The stirring of stirring rod two and stirring rod one can achieve the purpose of fully mixing the raw materials and improve the precision of the insulation layer.
[0017] 3. With the cooperation of the rotating shaft and the spiral pusher plate, the rotation of the spiral pusher plate can convey the raw material in the storage box to the extrusion tube. The drive motor can drive the drive shaft and the spiral pusher plate to rotate. The spiral pusher plate can squeeze the material in the extrusion tube towards the extrusion head, thereby achieving the purpose of extruding the cable insulation layer. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a high-precision cable insulation extrusion device proposed in this utility model;
[0019] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of a high-precision cable insulation extrusion device proposed in this utility model;
[0020] Figure 3 This is a partial three-dimensional structural diagram of a high-precision cable insulation extrusion device proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of part A of a high-precision cable insulation extrusion device proposed in this utility model.
[0022] In the diagram: 101, L-shaped frame; 102, extrusion tube; 103, extrusion head; 104, storage box; 105, feed pipe; 106, feed inlet; 201, L-shaped reinforcing plate; 202, drive motor; 203, drive shaft; 204, spiral pusher plate one; 301, rotating shaft one; 302, stirring rod one; 401, rotating shaft two; 402, stirring rod two; 403, spiral pusher plate two; 501, drive bevel gear; 502, driven bevel gear; 6, control box; 601, pulley one; 602, pulley two; 603, belt. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0024] This application discloses a high-precision cable insulation extrusion device.
[0025] Reference Figure 1-4 A high-precision cable insulation extrusion device includes an L-shaped frame 101. An extrusion tube 102 is fixedly installed on one side of the L-shaped frame 101, and an extrusion head 103 is provided at one end of the extrusion tube 102. An L-shaped reinforcing plate 201 is fixedly installed on one side of the L-shaped frame 101 and is fixedly connected to the L-shaped frame 101. A storage box 104 is fixedly installed on the top of the L-shaped reinforcing plate 201, and a feed pipe 105 is installed at the bottom of the storage box 104, and the feed pipe 105 is connected to the extrusion tube 102. The L-shaped reinforcing plate 201... A drive motor 202 is fixedly installed on one side, and a drive shaft 203 is fixedly installed on the output shaft of the drive motor 202. The drive shaft 203 extends into the extrusion tube 102, and a spiral pusher plate 204 is fixedly installed on the drive shaft 203. A rotating shaft 301 is rotatably installed on the top and bottom inner walls of the storage box 104. An agitator rod 302 is fixedly installed on the rotating shaft 301. A rotating shaft 401 is rotatably installed on the top inner wall of the storage box 104. Multiple agitators 402 are fixedly installed on the rotating shaft 401.
[0026] In this embodiment, the bottom end of the rotating shaft 2 401 extends into the feed pipe 105, and a spiral pusher plate 2 403 is fixedly installed on the rotating shaft 2 401. This plate can further stir the raw material during the process of conveying the raw material to the extrusion pipe 102, ensuring that the raw material entering the extrusion pipe 102 is mixed more evenly and effectively improving the extrusion quality of the insulation layer.
[0027] In this embodiment, the bottom end of the rotating shaft 301 extends to the bottom of the storage box 104. A transmission mechanism is provided between the rotating shaft 301 and the drive shaft 203. The transmission mechanism includes a drive bevel gear 501 and a driven bevel gear 502. The drive bevel gear 501 is fixedly installed on the drive shaft 203, and the driven bevel gear 502 is fixedly installed on the rotating shaft 301. The drive bevel gear 501 and the driven bevel gear 502 mesh with each other. By cleverly utilizing the power of the drive motor 202, the rotation of the drive shaft 203 is efficiently transmitted to the rotating shaft 301, thereby achieving the initial stirring of the raw materials in the storage box 104. The structure is compact and the transmission is stable and reliable.
[0028] In this embodiment, a control box 6 is fixedly installed on the top of the storage box 104, and the top ends of the first rotating shaft 301 and the second rotating shaft 401 are rotatably installed on the inner wall of the top of the control box 6. A linkage mechanism is provided between the first rotating shaft 301 and the second rotating shaft 401. The linkage mechanism includes a pulley 601, a pulley 602 and a belt 603. The first pulley 601 is fixedly installed on the first rotating shaft 301, and the second pulley 602 is fixedly installed on the second rotating shaft 401. The same belt 603 is provided between the first pulley 601 and the second pulley 602. Through a simple and reliable belt drive, the first rotating shaft 301 drives the second rotating shaft 401 to rotate, thereby allowing the second stirring rod 402 to work in coordination with the first stirring rod 302, which greatly enhances the mixing effect of the raw materials and improves the precision of the insulation layer.
[0029] In this embodiment, the top of the storage box 104 is provided with a feed inlet 106, and the feed inlet 106 is equipped with a sealing plug. A guide seat is installed inside the storage box 104, and the guide seat is adapted to the feed pipe 105. The sealing plug ensures the stability of the environment inside the storage box 104 and prevents the raw materials from getting damp or contaminated by impurities. The guide seat can guide the raw materials to smoothly enter the feed pipe 105, improve the raw material conveying efficiency, and ensure a smooth production process.
[0030] In this invention, when high-precision cable insulation is extruded, the drive motor 202 is started, which drives the drive shaft 203 to rotate. Through the cooperation of the drive bevel gear 501 and the driven bevel gear 502, the drive motor 202 drives the rotating shaft 301 to rotate, which in turn drives the stirring rod 302 to rotate, thus achieving the purpose of preliminary stirring and mixing of the raw materials in the storage bin 104. Through the cooperation of pulley 601, pulley 602, and belt 603, the rotating shaft 301 drives the rotating shaft 401 to rotate, which in turn drives... The stirring rod 402 rotates, and the stirring rod 402 and the stirring rod 302 can achieve the purpose of fully mixing the raw materials, improving the precision of the insulation layer. The rotation of the rotating shaft 401 can drive the spiral pusher plate 403 to rotate, and the rotation of the spiral pusher plate 403 can transport the raw materials in the storage box 104 to the extrusion tube 102. The drive motor 202 can drive the drive shaft 203 and the spiral pusher plate 204 to rotate, and the spiral pusher plate can squeeze the material in the extrusion tube 102 towards the extrusion head 103, thereby achieving the purpose of extruding the cable insulation layer.
[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-precision cable insulation extrusion device, characterized in that, The device includes an L-shaped frame (101), on one side of which an extrusion tube (102) is fixedly installed. One end of the extrusion tube (102) is provided with an extrusion head (103). An L-shaped reinforcing plate (201) is fixedly installed on one side of the L-shaped frame (101), and the L-shaped reinforcing plate (201) is fixedly connected to the L-shaped frame (101). A storage box (104) is fixedly installed on the top of the L-shaped reinforcing plate (201), and a feed pipe (105) is installed at the bottom of the storage box (104). The feed pipe (105) is connected to the extrusion pipe (102). A drive motor (202) is fixedly installed on one side of the L-shaped reinforcing plate (201). A drive shaft (203) is fixedly installed on the output shaft of the drive motor (202). The drive shaft (203) extends into the extrusion pipe (102), and a spiral pusher plate (204) is fixedly installed on the drive shaft (203). A rotating shaft (301) is rotatably mounted on the top and bottom inner walls of the storage box (104), and an agitator (302) is fixedly mounted on the rotating shaft (301). A rotating shaft (401) is rotatably mounted on the top inner wall of the storage box (104), and multiple agitators (402) are fixedly mounted on the rotating shaft (401).
2. The high-precision cable insulation extrusion device according to claim 1, characterized in that, The bottom end of the second rotating shaft (401) extends into the feed pipe (105), and a spiral pusher plate (403) is fixedly installed on the second rotating shaft (401).
3. The high-precision cable insulation extrusion device according to claim 1, characterized in that, The bottom end of the first rotating shaft (301) extends to the bottom of the storage box (104), and a transmission mechanism is provided between the first rotating shaft (301) and the drive shaft (203).
4. The high-precision cable insulation extrusion device according to claim 3, characterized in that, The transmission mechanism includes a driving bevel gear (501) and a driven bevel gear (502). The driving bevel gear (501) is fixedly mounted on the driving shaft (203), and the driven bevel gear (502) is fixedly mounted on the rotating shaft (301). The driving bevel gear (501) and the driven bevel gear (502) mesh with each other.
5. The high-precision cable insulation extrusion device according to claim 1, characterized in that, The top of the storage box (104) is fixedly installed with a control box (6), and the top ends of the first rotating shaft (301) and the second rotating shaft (401) are rotatably installed on the inner wall of the top of the control box (6). A linkage mechanism is provided between the first rotating shaft (301) and the second rotating shaft (401).
6. A high-precision cable insulation extrusion device according to claim 5, characterized in that, The linkage mechanism includes a pulley one (601), a pulley two (602), and a belt (603). The pulley one (601) is fixedly installed on a rotating shaft one (301), and the pulley two (602) is fixedly installed on a rotating shaft two (401). The same belt (603) is provided between the pulley one (601) and the pulley two (602).
7. The high-precision cable insulation extrusion device according to claim 1, characterized in that, The top of the storage box (104) is provided with a feed inlet (106), and the feed inlet (106) is equipped with a sealing plug.
8. A high-precision cable insulation extrusion device according to claim 1, characterized in that, The storage bin (104) is equipped with a guide seat, and the guide seat is compatible with the feed pipe (105).