A cable insulation layer extrusion molding machine
By using an extrusion device and a cleaning device in the cable insulation extruder, the problem of dust and impurities on the surface of raw material particles is solved, the quality of the insulation layer and the degree of automation of the equipment are improved, and the operational intensity is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN NANDA CABLE MFG CO LTD
- Filing Date
- 2025-02-19
- Publication Date
- 2026-06-23
AI Technical Summary
During the use of existing cable insulation extruders, dust and impurities adsorb onto the surface of raw material particles, leading to a decline in insulation quality and affecting insulation performance.
The molten raw material is attached to the surface of the wire core by an extrusion device, and automatic feeding is achieved by a feeding device. Combined with a cleaning device and a dust collection device, dust and impurities on the surface of the raw material particles are collected to reduce the impurity content in the insulation layer.
It improved the production quality of insulation layers and the practicality of equipment, reduced the labor intensity of operators, and enhanced the automation level of equipment.
Smart Images

Figure CN224391844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cable production, and in particular to a cable insulation layer extrusion molding machine. Background Technology
[0002] The insulation layer of cables is a crucial part of the wire and cable structure. It plays multiple roles, including electrical insulation, conductor protection, uniform electric field distribution, prevention of leakage, and fire resistance. The insulation layer is a component that covers the outside of the conductor and provides electrical insulation, ensuring that the transmitted current, electromagnetic waves, or light waves only travel along the conductor and do not flow outward.
[0003] The existing Chinese utility model patent with application number CN202220108887.6 relates to a cable insulation layer extruder, which includes an extrusion mechanism, an extrusion port, a feed hopper, a guide barrel, a spiral feed rod, a heating device, and a cooling device. It can quickly produce multi-color cable insulation layers and effectively reduce production costs.
[0004] However, in actual use, the surface of the raw material particles will adsorb dust and impurities. As the raw material particles are heated and melted, the surface dust and impurities will melt along with the raw material, which will lead to a decrease in the surface quality of the insulation layer and affect the insulation effect of the cable insulation layer. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a cable insulation extrusion molding machine that uses an extrusion device to extrude molten raw materials and attach them to the surface of the wire core, uses a feeding device to control the automatic feeding process of the equipment, and uses a dust removal device in conjunction with a dust collection device to collect dust and impurities on the surface of the raw material particles, thereby reducing the impurity content in the insulation layer and improving production quality and equipment practicality.
[0006] This utility model discloses a cable insulation layer extrusion molding machine, comprising an extrusion device, a feeding device, a cleaning device, and a dust collection device. The feeding device is installed on the extrusion device, the cleaning device is installed on the extrusion device, and the dust collection device is installed on the extrusion device. The extrusion device extrudes the molten raw material and attaches it to the surface of the wire core. The feeding device controls the automatic feeding process of the equipment. The cleaning device, in conjunction with the dust collection device, collects dust and impurities from the surface of the raw material particles, reducing the impurity content in the insulation layer and improving production quality and the practicality of the equipment.
[0007] Preferably, the extrusion device includes a base plate, an extrusion chamber, a geared motor, spiral extrusion blades, a conical head, and a self-heating extrusion die. The extrusion chamber is installed on the upper surface of the base plate, the geared motor is installed on the left end surface of the extrusion chamber, the spiral extrusion blades are installed inside the extrusion chamber, the output end of the geared motor is connected to the spiral extrusion blades, the conical head is connected to the right end surface of the extrusion chamber, and the self-heating extrusion die is connected to the output end of the conical head. When the geared motor is turned on, power is transmitted to the spiral extrusion blades, which drive the spiral extrusion blades to rotate. The rotating spiral extrusion blades drive the material to the right and feed it into the self-heating extrusion die through the conical head. During the process of the wire core passing through the self-heating extrusion die, the molten material adheres to the surface of the wire core to complete the insulation layer processing, which improves the practicality of the device.
[0008] Preferably, the feeding device includes a storage bin, a solenoid valve, a feeding pipe, and a cleaning chamber. The storage bin is mounted on the upper surface of the base plate via a bracket, and a discharge port is provided on the lower surface of the storage bin. A solenoid valve is installed on the discharge port. The cleaning chamber is connected to the upper left side of the extrusion chamber. The output end of the solenoid valve is connected to the upper part of the cleaning chamber via the feeding pipe. The raw material particles are stored in the storage bin, and the automatic feeding process of the equipment is completed by controlling the opening and closing of the solenoid valve. The raw material particles are fed into the cleaning chamber through the feeding pipe, and after impurity removal in the cleaning chamber, they enter the extrusion chamber. This improves the practicality of the device and reduces the labor intensity of the operator during the feeding process.
[0009] Preferably, the impurity removal device includes a filter chamber, a filter screen, a first fan, a dust settling platform, nozzles, a grid, and a dust collection pipe. The filter chamber is installed in the middle of the left end face of the cleaning chamber, and a filter screen is installed obliquely on the left end face of the filter chamber. The first fan is installed on the right end face of the filter chamber. A dust settling platform is set in the middle of the cleaning chamber, and multiple sets of nozzles are evenly arranged on the upper oblique surface of the dust settling platform. The output end of the first fan is connected to the multiple sets of nozzles. An air outlet is set on the upper end face of the cleaning chamber, and a dust collection pipe is connected to the air outlet. A grid is set below the air outlet. When the first fan is turned on, outside air is sent into the multiple sets of nozzles and sprayed out, thereby reducing the dust and impurities attached to the surface of the material in the cleaning chamber. The filter screen reduces the entry of dust and impurities from the outside air into the cleaning chamber. The grid intercepts the raw material particles and prevents the raw material particles from being discharged from the air outlet of the cleaning chamber, thus improving the practicality of the device.
[0010] Preferably, the dust collection device includes a dust collection bin, a dust collection bag, and a second fan. The dust collection bin is mounted on the center of the front end face of the cleaning bin via a bracket. An air inlet is provided on the upper end face of the dust collection bin. A dust collection bag is fitted inside the dust collection bin at the air inlet. A second fan is mounted on the lower end face of the dust collection bin. The input end of the second fan is connected to the inside of the dust collection bin, and the output end of the dust collection pipe is connected to the upper part of the dust collection bin. When the second fan is turned on in conjunction with the impurity removal device, the air that has been cleaned of the raw material particles is drawn into the dust collection bin. The dust and impurities in the gas are collected by the dust collection bag, reducing the pollution of the operating environment caused by dust in the gas and improving the practicality of the device.
[0011] Preferably, the device also includes a first heating plate and a second heating plate. The first heating plate is installed on the side of the extrusion chamber, and the second heating plate is installed on the side of the conical head. The first heating plate installed on the side of the extrusion chamber provides auxiliary preheating to the inside of the extrusion chamber, thereby increasing the melting rate of the equipment. The second heating plate installed on the surface of the conical head heats the conical head during cold start-up, thereby heating the residual material inside the conical head, softening the residual material, and extruding it along with the new material. This reduces the impact of the residual material inside the conical head on the raw material extrusion rate and improves the practicality of the device.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the molten raw material is extruded and attached to the surface of the wire core by the extrusion device, the automatic feeding process of the equipment is controlled by the feeding device, and the dust and impurities on the surface of the raw material particles are collected by the impurity removal device in conjunction with the dust collection device, thereby reducing the impurity content in the insulation layer and improving the production quality and the practicality of the equipment. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;
[0015] Figure 3 This is a first cross-sectional structural diagram of the present invention;
[0016] Figure 4 This is a schematic diagram of the second cross-sectional structure of this utility model;
[0017] Figure 5 This is a partially enlarged structural schematic diagram of the present invention;
[0018] The following are labeled in the attached diagram: 1. Base plate; 2. Extrusion chamber; 3. Gear motor; 4. Spiral extrusion blades; 5. Conical head; 6. Self-heating extrusion die; 7. Storage tank; 8. Solenoid valve; 9. Feeding pipe; 10. Cleaning chamber; 11. Filter chamber; 12. Filter screen; 13. First fan; 14. Dust settling platform; 15. Nozzle; 16. Grille; 17. Dust collection pipe; 18. Dust collection bin; 19. Dust collection bag; 20. Second fan; 21. First heating plate; 22. Second heating plate. Detailed Implementation
[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0020] Example
[0021] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The feeding device, the impurity removal device, and the dust collection device are all installed on the extrusion device.
[0022] First, the raw material particles are stored in the storage tank 7. The automatic feeding process of the equipment is completed by controlling the opening and closing of the solenoid valve 8. The raw material particles are fed into the cleaning chamber 10 through the feeding pipe 9. Then, the first fan 13 is turned on to send outside air into multiple sets of nozzles 15 to spray out, thereby reducing the dust and impurities attached to the surface of the material in the cleaning chamber 10. Then, the second fan 20 is turned on in conjunction with the impurity removal device to draw the air that has been cleaned of the raw material particles into the dust collection chamber 18. The dust and impurities in the gas are collected by the dust collection bag 19. Then, the geared motor 3 is turned on to transmit power to the spiral extrusion blades 4 to drive the spiral extrusion blades 4 to rotate. The rotating spiral extrusion blades 4 drive the material to be output to the right and fed into the self-heating extrusion mold 6 through the conical head 5.
[0023] The extrusion device includes a base plate 1, an extrusion chamber 2, a geared motor 3, a spiral extrusion blade 4, a conical head 5, and a self-heating extrusion die 6. The extrusion chamber 2 is installed on the upper end face of the base plate 1, the geared motor 3 is installed on the left end face of the extrusion chamber 2, the spiral extrusion blade 4 is installed inside the extrusion chamber 2, the output end of the geared motor 3 is connected to the spiral extrusion blade 4, the conical head 5 is connected to the right end face of the extrusion chamber 2, and the self-heating extrusion die 6 is connected to the output end of the conical head 5.
[0024] The feeding device includes a storage tank 7, a solenoid valve 8, a feeding pipe 9, and a cleaning chamber 10. The storage tank 7 is mounted on the upper surface of the base plate 1 via a bracket. The lower surface of the storage tank 7 is provided with a discharge port, and the solenoid valve 8 is mounted on the discharge port. The left side of the upper surface of the extrusion chamber 2 is connected to the cleaning chamber 10. The output end of the solenoid valve 8 is connected to the upper part of the cleaning chamber 10 via the feeding pipe 9.
[0025] The impurity removal device includes a filter chamber 11, a filter screen 12, a first fan 13, a dust settling platform 14, nozzles 15, a grid 16, and a dust collection pipe 17. The filter chamber 11 is installed in the middle of the left end face of the cleaning chamber 10. The filter screen 12 is installed obliquely on the left end face of the filter chamber 11. The first fan 13 is installed in the right end face of the filter chamber 11. The dust settling platform 14 is set in the middle of the cleaning chamber 10. Multiple sets of nozzles 15 are evenly arranged on the upper oblique surface of the dust settling platform 14. The output end of the first fan 13 is connected to the multiple sets of nozzles 15. An air outlet is set on the upper end face of the cleaning chamber 10. The dust collection pipe 17 is connected to the air outlet. A grid 16 is set on the lower side of the air outlet.
[0026] The dust collection device includes a dust collection bin 18, a dust collection bag 19, and a second fan 20. The dust collection bin 18 is installed in the middle of the front end face of the cleaning bin 10 via a bracket. An air inlet is provided on the upper end face of the dust collection bin 18. The dust collection bag 19 is fitted inside the dust collection bin 18 at the air inlet. The second fan 20 is installed on the lower end face of the dust collection bin 18. The input end of the second fan 20 is connected to the inside of the dust collection bin 18, and the output end of the dust collection pipe 17 is connected to the upper part of the inside of the dust collection bin 18.
[0027] It also includes a first heating plate 21 and a second heating plate 22. The first heating plate 21 is installed on the side of the extrusion chamber 2, and the second heating plate 22 is installed on the side of the conical head 5.
[0028] The molten raw material is extruded and attached to the surface of the wire core by an extrusion device. The automatic feeding process of the equipment is controlled by a feeding device. The dust removal device, in conjunction with a dust collection device, collects dust and impurities from the surface of the raw material particles, reducing the impurity content in the insulation layer and improving production quality and equipment practicality.
[0029] like Figures 1 to 5As shown, this utility model discloses a cable insulation layer extrusion molding machine. During operation, raw material particles are first stored in a storage bin 7. The automatic feeding process is completed by controlling the opening and closing of the solenoid valve 8. The raw material particles are fed into the cleaning chamber 10 through the feeding pipe 9. Then, the first fan 13 is turned on to send outside air into multiple sets of nozzles 15, thereby reducing dust and impurities adhering to the surface of the material in the cleaning chamber 10. Next, the second fan 20, in conjunction with a cleaning device, draws the air that has been cleaned of the raw material particles into the dust collection chamber 18. Dust and impurities in the gas are collected by the dust collection bag 19. Then, the reduction motor 3 is turned on to transmit power to the spiral extrusion blades 4, causing them to rotate. The rotating spiral extrusion blades 4 drive the material to the right and output it through the conical head 5 into the self-heating extrusion die 6.
[0030] The geared motor 3, self-heating extrusion mold 6, first heating plate 21, second heating plate 22, dust collection bin 18, first fan 13 and second fan 20 of the cable insulation layer extrusion molding machine of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from technical personnel in this field.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A cable insulation layer extrusion molding machine; characterized in that, The device includes an extrusion unit, a feeding unit, a cleaning unit, and a dust collection unit. The feeding unit is installed on the extrusion unit, the cleaning unit is installed on the extrusion unit, and the dust collection unit is installed on the extrusion unit. The cleaning unit includes a filter chamber (11), a filter screen (12), a first fan (13), a dust settling platform (14), nozzles (15), a grid (16), and a dust collection pipe (17). The filter chamber (11) is installed in the middle of the left end face of the cleaning chamber (10). The filter screen (12) is installed obliquely on the left end face of the filter chamber (11). The first fan (13) is installed on the right end face of the filter chamber (11). The dust settling platform (14) is set in the middle of the cleaning chamber (10). Multiple sets of nozzles (15) are evenly arranged on the upper inclined surface of the dust settling platform (14). The output end of the machine (13) is connected to multiple sets of nozzles (15). An air outlet is provided on the upper surface of the cleaning chamber (10), and a dust collection pipe (17) is connected to the air outlet. A grid (16) is provided on the lower side of the air outlet. The dust collection device includes a dust collection chamber (18), a dust collection bag (19), and a second fan (20). The dust collection chamber (18) is installed in the middle of the front end face of the cleaning chamber (10) through a bracket. An air inlet is provided on the upper surface of the dust collection chamber (18). A dust collection bag (19) is fitted inside the dust collection chamber (18) at the air inlet. A second fan (20) is installed on the lower surface of the dust collection chamber (18). The input end of the second fan (20) is connected to the inside of the dust collection chamber (18), and the output end of the dust collection pipe (17) is connected to the upper part of the dust collection chamber (18).
2. The cable insulation layer extrusion molding machine as described in claim 1, characterized in that, The extrusion device includes a base plate (1), an extrusion chamber (2), a geared motor (3), a spiral extrusion blade (4), a conical head (5), and a self-heating extrusion die (6). The extrusion chamber (2) is installed on the upper surface of the base plate (1). The geared motor (3) is installed on the left side of the extrusion chamber (2). The spiral extrusion blade (4) is installed inside the extrusion chamber (2). The output end of the geared motor (3) is connected to the spiral extrusion blade (4). The conical head (5) is connected to the right side of the extrusion chamber (2). The self-heating extrusion die (6) is connected to the output end of the conical head (5).
3. The cable insulation layer extrusion molding machine as described in claim 2, characterized in that, The feeding device includes a storage tank (7), a solenoid valve (8), a feeding pipe (9), and a cleaning chamber (10). The storage tank (7) is mounted on the upper surface of the base plate (1) by a bracket. The lower surface of the storage tank (7) is provided with a discharge port, and a solenoid valve (8) is installed on the discharge port. The left side of the upper surface of the extrusion chamber (2) is connected to the cleaning chamber (10). The output end of the solenoid valve (8) is connected to the upper part of the cleaning chamber (10) through the feeding pipe (9).
4. The cable insulation layer extrusion molding machine as described in claim 3, characterized in that, It also includes a first heating plate (21) and a second heating plate (22). The first heating plate (21) is installed on the side of the extrusion chamber (2), and the second heating plate (22) is installed on the side of the conical head (5).