A multi-layer co-extruded insulation layer extruder
By introducing a controllable discharge device and heating wire treatment into the extruder, the problems of uneven insulation layer thickness and loose interlayer bonding were solved, achieving precise control of the insulation layer and high-quality production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 兴胜山鹰线缆有限公司
- Filing Date
- 2025-05-14
- Publication Date
- 2026-07-07
AI Technical Summary
The existing extruders lack flow control devices during discharge, resulting in uneven insulation layer thickness and loose interlayer bonding, which affects product quality.
The device employs a controllable discharge and control mechanism, including a horizontal plate, a vertical plate, a distribution port, a chute, a slider, a baffle plate, and a threaded rod, which, in conjunction with a heating wire, perform layered extrusion and melting of the insulating material.
It achieves precise control and uniform thickness of the insulation layer material, avoids problems such as material mixing and loose interlayer bonding, and improves the overall performance of the insulation layer.
Smart Images
Figure CN224472255U_ABST
Abstract
Description
Technical Field
[0001] This disclosure specifically discloses a field of extruder technology, specifically relating to a multi-layer co-extrusion insulation layer extruder. Background Technology
[0002] In the production of products such as wires and cables, the extrusion of the insulation layer is a crucial step. With the development of technology, the performance requirements for the insulation layer are becoming increasingly stringent, leading to the emergence of multilayer co-extrusion technology. This technology involves simultaneously extruding insulating materials with different properties to form multilayer composite insulation layers, thereby meeting diverse application needs.
[0003] According to application number 201921265670.0, a multi-layer co-extrusion cable insulation extruder is disclosed, including multiple sets of extruder bodies, base plates, multiple sets of feed pipes, multiple sets of hoppers, multiple sets of discharge pipes, multiple sets of molds, multiple sets of rotating plates, multiple sets of winding columns, multiple sets of fixing rods, and multiple sets of conductive cores; it also includes support plates, fixing plates, air boxes, multiple sets of cooling pipes, multiple sets of blowers, multiple sets of air ducts, multiple sets of air nozzles, multiple sets of motors, multiple sets of rotating shafts, multiple sets of gears, multiple sets of connecting plates, multiple sets of left limit rods, multiple sets of right limit rods, and multiple sets of universal wheels. This multi-layer co-extrusion cable insulation extruder can cool multiple sets of conductive cores extracted from multiple sets of second circular holes on multiple sets of molds, accelerate the cooling and drying rate of the insulation material on the outer wall of multiple sets of conductive cores, reduce the entanglement and adhesion of multiple sets of conductive cores together, and improve the rationality of use;
[0004] Existing extruders lack flow control devices during discharge, making it difficult to precisely control the extrusion amount of each layer of material. This results in uneven insulation layer thickness, affecting product quality. Furthermore, the different insulation layer materials can lead to loose interlayer bonding, impacting the overall performance of the insulation layer. Therefore, we propose a multi-layer co-extrusion insulation layer extruder. Summary of the Invention
[0005] In view of the above-mentioned defects or deficiencies in the prior art, this application aims to provide a structure with controllable quantity and good adhesion.
[0006] A multi-layer co-extrusion insulation layer extruder includes a base plate. Support seats are uniformly fixedly connected to the right side of the upper surface of the base plate. The inner cavity of the support seat is arc-shaped. An extrusion device is fixedly connected inside the support seat. A discharge pipe is fixedly connected to the left outlet of the extrusion device. A discharge device is fixedly connected to the left side of the upper surface of the base plate. The right side of the discharge device is connected to the discharge pipe. A die head is fixedly connected to the middle of the left end face of the discharge device.
[0007] According to the technical solution provided in the embodiments of this application, the extrusion device includes an extruder housing, a rotating shaft, a spiral blade, a feed inlet, and a drive motor. The drive motor is fixedly connected to the middle of the right end face of the extruder housing. The motor shaft of the drive motor extends through the inner cavity of the extruder housing and is fixedly connected to the rotating shaft. The spiral blade is fixedly connected to the outer wall of the rotating shaft. The feed inlet is fixedly connected to the right side of the upper end face of the extruder housing, and the discharge pipe is fixedly connected to the left side of the extruder housing.
[0008] According to the technical solution provided in the embodiments of this application, the discharge device includes a discharge port, a horizontal plate, a distribution port, a vertical plate and a discharge shell. The discharge pipe is fixedly connected to the discharge shell on the left side. A horizontal plate is fixedly connected longitudinally in the middle of the inner cavity of the discharge shell. A vertical plate is fixedly connected longitudinally on the right end face of the horizontal plate. Distribution ports are opened on both the front and rear sides of the right end face of the horizontal plate. Control devices are evenly arranged on the right end face of the horizontal plate.
[0009] According to the technical solution provided in the embodiments of this application, the control device includes a chute, a slider, a baffle plate, a threaded rod, and a handle. The right end of the horizontal plate is provided with chutes on both the front and rear sides. A slider is installed inside each chute. A baffle plate is fixedly connected to the right end of each slider. A threaded rod is movably connected to the middle of the upper end of each baffle plate. The upper end of the threaded rod extends through to the upper end of the discharge housing and is fixedly connected to a handle.
[0010] According to the technical solution provided in the embodiments of this application, the cross-sections of the chute and the slider are both trapezoidal, the chute matches the slider, and a rubber pad is fixedly bonded to the left end face of the baffle plate.
[0011] According to the technical solution provided in the embodiments of this application, the discharge shell is funnel-shaped.
[0012] According to the technical solution provided in the embodiments of this application, the diameter of the baffle plate is larger than the diameter of the dispensing port.
[0013] According to the technical solution provided in the embodiments of this application, heating wires are uniformly and fixedly connected inside the extruder housing and the outer wall of the die head, and the heating wires are spiral in shape.
[0014] In summary, this application discloses a multi-layer co-extrusion insulation layer extruder.
[0015] Beneficial effects:
[0016] 1. Through the discharge device and control device, different insulation layer materials are separated by horizontal and vertical plates to avoid material mixing. The threaded rod and baffle plate work together to ensure that the extrusion amount of insulation layer material can be controlled, so as to avoid uneven insulation layer thickness and affect product quality.
[0017] 2. The extruder housing, die head, and heating wire ensure that the insulation material is in a molten state, preventing solidification during extrusion and avoiding delamination of the outer insulation layer of the battery cell, which could result in poor interlayer bonding and affect the overall performance of the insulation layer. Attached Figure Description
[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0019] Figure 1 This is a schematic diagram of the multilayer co-extrusion insulation layer extruder in this application;
[0020] Figure 2 This is a schematic cross-sectional view of the left side of the extruder for the multi-layer co-extrusion insulation layer in this application;
[0021] Figure 3 This is a schematic cross-sectional view of the right side of the extruder for the multilayer co-extrusion insulation layer in this application;
[0022] Figure 4 This is a schematic diagram of the discharge port structure in this application;
[0023] Figure 5 It is in this application Figure 2 Enlarged structural diagram at point A in the middle.
[0024] In the diagram: 1. Base plate; 2. Support base; 3. Extrusion device; 31. Extruder housing; 32. Rotating shaft; 33. Spiral blade; 34. Feed inlet; 35. Drive motor; 4. Discharge pipe; 5. Discharge device; 51. Discharge port; 52. Horizontal plate; 53. Distributor port; 54. Vertical plate; 55. Discharge housing; 6. Die head; 7. Heating wire; 8. Slide groove; 9. Slider; 10. Baffle plate; 11. Threaded rod; 12. Handle. Detailed Implementation
[0025] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] As mentioned in the background section, in the existing technology, the extruder does not have a flow control device when discharging material, making it difficult to accurately control the extrusion amount of each layer of material, resulting in uneven insulation layer thickness and affecting product quality; moreover, the existing insulation layer materials are different, which can easily lead to poor interlayer bonding, affecting the overall performance of the insulation layer. This disclosure proposes a structure with controllable amount and good adhesion.
[0028] Example 1
[0029] Please see Figure 1 A multi-layer co-extrusion insulation layer extruder includes a base plate 1. In order to ensure the stability of the extruder housing 31, a support seat 2 is uniformly fixedly connected to the right side of the upper end face of the base plate 1, and the inner cavity of the support seat 2 is arc-shaped, which effectively fixes the extruder housing 31. In order to ensure normal material feeding, a discharge pipe 4 is fixedly connected to the outlet on the left side of the extruder housing 31.
[0030] Please see Figure 1 In order to ensure that the insulating material inside the discharge pipe 4 can be extruded in layers and separately, a discharge device 5 is fixedly connected to the left side of the upper end face of the base plate 1, and the right side of the discharge device 5 is connected to the discharge pipe 4. In order to ensure that the insulating material can be layered on the outer wall of the battery cell, a die head 6 is fixedly connected to the middle of the left end face of the discharge device 5.
[0031] Please see Figure 3 To ensure that the insulating material can be extruded normally, an extrusion device 3 is formed by an extruder housing 31, a rotating shaft 32, a spiral blade 33, a feed port 34, and a drive motor 35. The drive motor 35 is fixedly connected to the middle of the right end face of the extruder housing 31, and the motor shaft of the drive motor 35 extends through the inner cavity of the extruder housing 31 and is fixedly connected to the rotating shaft 32. The spiral blade 33 is fixedly connected to the outer wall of the rotating shaft 32. In order to ensure that the insulating layer particles can melt, the feed port 34 is fixedly connected to the right side of the upper end face of the extruder housing 31, and the discharge pipe 4 is fixedly connected to the left side of the extruder housing 31.
[0032] Please see Figure 2 To ensure that the discharge device 5 can separate the different insulating layer materials and that different insulating layers can be bonded to the outside of the battery cell in layers, the discharge device 5 is composed of discharge port 51, horizontal plate 52, distribution port 53, vertical plate 54 and discharge housing 55. The discharge housing 55 is fixedly connected to the left side of the discharge pipe 4. The horizontal plate 52 is longitudinally fixedly connected to the middle of the inner cavity of the discharge housing 55. In order to separate the two different insulating materials, the vertical plate 54 is longitudinally fixedly connected to the right end face of the horizontal plate 52. Distribution ports 53 are opened on both the front and rear sides of the right end face of the horizontal plate 52. In order to control the flow rate of the insulating layer, control devices are evenly arranged on the right end face of the horizontal plate 52.
[0033] Please see Figure 5To precisely control the extrusion volume, a control device is formed by a chute 8, a slider 9, a baffle plate 10, a threaded rod 11, and a handle 12. The chute 8 is evenly provided on both the front and rear sides of the right end of the horizontal plate 52. A slider 9 is installed inside each chute 8. A baffle plate 10 is fixedly connected to the right end of each slider 9. To ensure that the baffle plate 10 can rise and fall normally, a threaded rod 11 is movably connected to the middle of the upper end of the baffle plate 10. The upper end of the threaded rod 11 extends through to the upper end of the discharge housing 55 and is fixedly connected to the handle 12.
[0034] Please see Figure 5 To ensure that the baffle plate 10 is not pushed open by the left insulating layer material, the cross sections of the slide groove 8 and the slider 9 are both trapezoidal, and the slide groove 8 matches the slider 9 to ensure that the left end face of the baffle plate 10 is stably attached to the right end face of the horizontal plate 52. To further ensure the sealing of the baffle plate 10, a rubber pad is fixedly bonded to the left end face of the baffle plate 10.
[0035] Please see Figure 3 In order to ensure that the extrusion amount of the insulation material is uniform and has extrusion force, the discharge shell 5 is trumpet-shaped, forming a precise material output channel, effectively reducing the frictional resistance of the material during the flow process, and playing a gathering and guiding role for the insulation material, ensuring that the material is stably and centrally output into the die head 6, thus ensuring the continuity and smoothness of the entire material transmission system.
[0036] Please see Figure 5 In order to ensure that the baffle plate 10 can stably stop the material, the diameter of the baffle plate 10 is larger than the diameter of the material distribution port 53, which effectively prevents the two different insulating layer materials from mixing together.
[0037] Example 2
[0038] Please see Figure 4 To further ensure the stable bonding of the insulation material bonded to the outside of the battery cell and avoid delamination, heating wires 7 are uniformly fixed inside the extruder housing 31 and the outer wall of the die head 6. The heating wires 7 are spiral-shaped and heat the insulation material through the heating wires 7 to prevent the material from cooling and solidifying and causing delamination.
[0039] Working principle: During use, different insulating materials are poured into the feed inlet 34 and heated by the heating wire 7 to ensure that the insulating material melts. Using an external power supply, the drive motor 35 is started, which drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the spiral blade 33 to rotate, and the spiral blade 33 extrudes the molten insulating material. The insulating material enters the discharge pipe 4 and then the discharge housing 55. The insulating material on the left and right sides enters the cavities on the left and right sides of the vertical plate 54, respectively. Depending on the required amount of insulating material, the handle 12 is rotated. The handle 12 drives the threaded rod 11 to rotate and rise / fall, which in turn moves the baffle plate 10 up and down, ensuring that the required insulating material is extruded from the dispensing port 53 and finally enters the die head 6. Heated by the heating wire 7, the multiple layers of insulating material are bonded together, preventing delamination.
[0040] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A multi-layer co-extrusion insulation layer extruder, comprising a base plate (1), characterized in that: The upper right side of the base plate (1) is uniformly fixedly connected to a support base (2). The inner cavity of the support base (2) is arc-shaped. An extrusion device (3) is fixedly connected inside the support base (2). A discharge pipe (4) is fixedly connected to the left outlet of the extrusion device (3). A discharge device (5) is fixedly connected to the left side of the upper surface of the base plate (1). The right side of the discharge device (5) is connected to the discharge pipe (4). A die head (6) is fixedly connected to the middle of the left end face of the discharge device (5).
2. The multi-layer co-extrusion insulating layer extruder according to claim 1, characterized in that: The extrusion device (3) includes an extruder housing (31), a rotating shaft (32), a spiral blade (33), a feed inlet (34), and a drive motor (35). The drive motor (35) is fixedly connected to the middle of the right end face of the extruder housing (31). The motor shaft of the drive motor (35) extends through the inner cavity of the extruder housing (31) and is fixedly connected to the rotating shaft (32). The spiral blade (33) is fixedly connected to the outer wall of the rotating shaft (32). The feed inlet (34) is fixedly connected to the right side of the upper end face of the extruder housing (31). The discharge pipe (4) is fixedly connected to the left side of the extruder housing (31).
3. The multi-layer co-extrusion insulating layer extruder according to claim 1, characterized in that: The discharge device (5) includes a discharge port (51), a horizontal plate (52), a distribution port (53), a vertical plate (54), and a discharge housing (55). The discharge pipe (4) is fixedly connected to the discharge housing (55) on the left side. The horizontal plate (52) is fixedly connected to the middle of the inner cavity of the discharge housing (55) in the longitudinal direction. The vertical plate (54) is fixedly connected to the right end face of the horizontal plate (52) in the longitudinal direction. Distribution ports (53) are opened on both the front and rear sides of the right end face of the horizontal plate (52). Control devices are evenly arranged on the right end face of the horizontal plate (52).
4. The multi-layer co-extrusion insulating layer extruder according to claim 3, characterized in that: The control device includes a chute (8), a slider (9), a baffle plate (10), a threaded rod (11), and a handle (12). The right end of the horizontal plate (52) is provided with chute (8) evenly on both the front and rear sides. The slider (9) is installed inside each chute (8). The right end of each slider (9) is fixedly connected to a baffle plate (10). The upper end of each baffle plate (10) is movably connected to a threaded rod (11). The upper end of the threaded rod (11) extends through to the upper end of the discharge housing (55) and is fixedly connected to a handle (12).
5. The multi-layer co-extrusion insulating layer extruder according to claim 4, characterized in that: The cross-sections of the groove (8) and the slider (9) are both trapezoidal. The groove (8) matches the slider (9). A rubber pad is fixedly bonded to the left end face of the baffle plate (10).
6. The multi-layer co-extrusion insulating layer extruder according to claim 3, characterized in that: The discharge housing (55) is trumpet-shaped.
7. The multi-layer co-extrusion insulating layer extruder according to claim 4, characterized in that: The diameter of the baffle plate (10) is larger than the diameter of the feed outlet (53).
8. The multi-layer co-extrusion insulating layer extruder according to claim 2, characterized in that: Heating wires (7) are uniformly fixedly connected inside the outer wall of the extruder housing (31) and the die head (6), and the heating wires (7) are spiral in shape.