Insulation extrusion multi-manifold precision dispensing device
By using a multi-die precision distribution device for insulating extrusion, precise distribution and filtration of insulating materials are achieved, solving the problem of wire bending and cracking caused by the thickness of the copper wire insulation layer in existing technologies, and improving production efficiency and material uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JINHONGFENG ELECTRONICS CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-29
AI Technical Summary
Existing insulating extrusion dies attach a thick insulating layer to the copper wire, increasing the wire's rigidity and making it prone to cracking when bent.
An insulating extrusion multi-die precision distribution device is adopted. The flow rate of the insulating material is adjusted and impurities are filtered through a flow control valve and a filter plate to ensure that the extrusion deviation between each die group is less than ±1%. The insulating material is coated in three stages, and the copper wire is preheated using a limiting component and a heating tube.
It effectively reduces the thickness of the insulation layer on the surface of the copper wire, reduces the risk of cracking when the wire is bent, prevents clogging, and improves the uniformity of materials and production efficiency.
Smart Images
Figure CN224296525U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extrusion die technology, specifically an insulated extrusion multi-die head precision distribution device. Background Technology
[0002] The insulation extrusion die is a core component in wire and cable manufacturing used to mold molten insulating material (such as polyethylene, cross-linked polyethylene, etc.) into a continuous insulation layer or sheath layer. Its design directly affects product quality and production efficiency. Molten plastic is pushed to the die by a rotating screw, and extruded through the annular gap between the die core and the die sleeve to form a continuous and dense insulation layer or sheath layer. The shape and size of the die directly determine the shape and size of the final product. After extrusion, the insulation layer or sheath layer is rapidly cooled through a cooling water tank or cooling pipe, changing from an amorphous plastic state to a shaped solid state.
[0003] In the prior art, such as the insulating extruder head disclosed in CN218159811U, there is an extrusion head with a cable body penetrating through it. A flange connecting plate is fitted onto the outer surface of the extrusion head, and multiple mounting holes are evenly distributed inside the flange connecting plate. A connector is fixedly mounted on the top of the extrusion head, and a die core is embedded inside the extrusion head. A guide sleeve connects the die core to the cable body. A material guiding mechanism is connected near the top of the extrusion head. It is reset by a return spring and a telescopic column moving relative to the connecting column. A sealing ball blocks the feeding channel, preventing debris from entering the extruder head. This facilitates the even addition of insulating material to the cable surface, improving the uniformity of the insulating material extruded onto the cable surface.
[0004] The existing method uses a return spring and a telescopic column to move relative to the connecting column for reset, and a blocking ball to block the feeding channel to prevent debris from entering the extruder head. However, since most dies have a thick insulation layer directly attached to the copper wire, it increases the rigidity of the wire, making it prone to cracking when bent, which affects its use. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Given the problems existing in the prior art, most dies attach a thick insulating layer directly to the copper wire, which increases the rigidity of the wire and makes it prone to cracking when bent, affecting its use.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An insulating extrusion multi-die head precision distribution device includes an extrusion die head, the upper surface of which is connected to a flow control valve, the upper end of which is provided with a distribution component for distributing the flow of the multi-die head, and the right side of the extrusion die head is provided with a disassembly component for disassembling the multi-die head.
[0009] The distribution component includes a flow sensor connected to the upper end of a flow control valve. The input end of the flow sensor is connected to a delivery pipe, and the end of the delivery pipe is connected to a distribution box. A filter screen is installed vertically inside the distribution box.
[0010] As a further improvement of this utility model: both ends of the filter screen are fixed with limiting plates that are inserted into the diversion box, and the upper surface of the filter screen is fixed with a movable plate that is movably connected to the diversion box.
[0011] As a further improvement of this utility model: one side of the diversion box is connected to a delivery pump via a pipe, and the input end of the delivery pump is connected to a connecting pipe.
[0012] As a further improvement of this utility model: the end of the connecting pipe is connected to a storage box, and the inner wall of the storage box is equipped with an insulation inner plate.
[0013] As a further improvement of this utility model: the disassembly assembly includes a connector, which is welded to the right side of the extrusion die.
[0014] As a further improvement of this utility model: the end of the connector is connected to a limiting member, and one side of the limiting member is provided with a threaded groove that is threadedly connected to the connector.
[0015] As a further improvement of this utility model, a heating tube is embedded in the inner wall of the limiting member.
[0016] As a further embodiment of this utility model: the interior of the extrusion die is provided with a flow cavity that communicates with the flow control valve, and one side of the flow cavity is connected to an extrusion hole opened on the inner surface of the extrusion die.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This utility model adjusts the flow rate of the insulating material in real time by controlling the flow control valve to ensure that the extrusion deviation between different dies is less than ±1%. After the insulating material is coated in the first set of extrusion dies, the copper wire enters the second set of extrusion dies and is coated with a thinner layer of insulating material again. Then, it passes through the second set of extrusion dies to coat a third layer of insulating material. This effectively reduces the risk of the copper wire being directly coated with a thicker insulating layer, which would increase the rigidity of the wire and make it prone to cracking when bent.
[0019] 2. This utility model uses insulating material to filter impurities or larger materials through a filter screen, thereby effectively reducing the possibility of subsequent clogging. With the help of a limiting plate, the filter screen can be disassembled by pulling the movable plate for easy replacement. Attached Figure Description
[0020] Figure 1 A three-dimensional structural schematic diagram of an insulating extrusion multi-die precision dispensing device;
[0021] Figure 2 This is a schematic cross-sectional view of the extrusion die in an insulating multi-die precision dispensing device.
[0022] Figure 3 This is a three-dimensional structural diagram of the extrusion die in an insulating multi-die precision dispensing device;
[0023] Figure 4 This is a schematic cross-sectional view of the distribution box in a precision dispensing device for multi-die extrusion of insulating materials.
[0024] Figure 5 This is a three-dimensional schematic diagram of the delivery pump in an insulating extrusion multi-die precision distribution device.
[0025] In the diagram: 1. Extrusion die; 2. Flow control valve; 3. Flow sensor; 31. Delivery pipe; 32. Diverter box; 33. Filter screen; 34. Limiting plate; 35. Movable plate; 36. Delivery pump; 4. Connecting pipe; 5. Storage tank; 6. Insulation inner plate; 7. Connector; 71. Limiting component; 72. Threaded groove; 73. Heating tube; 8. Flow chamber; 9. Extrusion orifice. Detailed Implementation
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0029] Example 1
[0030] Please see Figures 1-5 This is the first embodiment of the present utility model. This embodiment provides an insulating extrusion multi-die head precise distribution device, including an extrusion die head 1, a flow control valve 2 connected to the upper surface of the extrusion die head 1, a distribution component for distributing the flow of the multi-die head at the upper end of the flow control valve 2, and a disassembly component for disassembling the multi-die head on the right side of the extrusion die head 1.
[0031] The distribution component includes a flow sensor 3, which is connected to the upper end of the flow control valve 2. The input end of the flow sensor 3 is connected to a delivery pipe 31, and the end of the delivery pipe 31 is connected to a distribution box 32. A filter screen 33 is installed vertically inside the distribution box 32.
[0032] Specifically, both ends of the filter screen 33 are fixed with limiting plates 34 that are inserted into the diversion box 32, and the upper surface of the filter screen 33 is fixed with a movable plate 35 that is movably connected to the diversion box 32.
[0033] Furthermore, when the insulating material passes through the filter screen 33, it can filter out impurities or larger material particles in the material, thereby effectively reducing the possibility of subsequent clogging.
[0034] Specifically, a delivery pump 36 is connected to one side of the distribution box 32 via a pipe, and a connecting pipe 4 is connected to the input end of the delivery pump 36.
[0035] Furthermore, the installed delivery pump 36 extracts the insulating material through the connecting pipe 4 and sends it to the distribution box 32.
[0036] Specifically, the end of the connecting pipe 4 is connected to a storage box 5, and the inner wall of the storage box 5 is equipped with an insulation inner plate 6.
[0037] Furthermore, the inner insulation panel 6 installed inside the storage bin 5 can insulate the insulating material.
[0038] In use, multiple extrusion dies 1 are connected and assembled. The insulation inner plate 6 installed in the storage tank 5 can keep the insulating material warm. The delivery pump 36 extracts the insulating material through the connecting pipe 4 and sends it to the distribution box 32. When the insulating material passes through the filter screen 33, it can filter impurities or larger material particles in the material, thereby effectively reducing the possibility of subsequent blockage. With the cooperation of the limit plate 34, the filter screen 33 can be disassembled by pulling the movable plate 35 for easy replacement. The filtered insulating material is delivered to the flow sensor 3 through the delivery pipe 31, and then enters the flow chamber 8 through the flow control valve 2. Through the extrusion hole 9, the insulating material can be... The insulation material is evenly coated on the surface of the copper wire, while the flow sensor 3 monitors the extrusion volume of each die in real time and sends the detected data to the microcontroller for processing via wires. When the flow rate of the insulation material in a certain die is too high, the microcontroller controls the flow control valve 2 to adjust the flow rate of the insulation material in real time to ensure that the extrusion volume deviation between different dies is less than ±1%. After the insulation material is coated in the first set of extrusion dies 1, the copper wire enters the second set of extrusion dies 1 and is coated with a thinner layer of insulation material again. Then, it passes through the second set of extrusion dies 1 to coat a third layer of insulation material. This can effectively reduce the situation where directly coating a thicker insulation layer on the surface of the copper wire increases the rigidity of the wire and makes it easy to crack when bending.
[0039] In summary, this insulating extrusion multi-die precision distribution device can coat the copper wire surface with insulating material in three stages during use. This effectively reduces the risk of increased wire rigidity and cracking during bending caused by directly coating the copper wire surface with a thick insulating layer.
[0040] Example 2
[0041] Please see Figures 1-5 This is the second embodiment of the present utility model.
[0042] Specifically, the disassembly assembly includes a connector 7, which is welded to the right side of the extrusion die 1. A limiting member 71 is connected to the end of the connector 7, and a threaded groove 72 is provided on one side of the limiting member 7 to be threadedly connected to the connector 7.
[0043] Furthermore, by aligning the connector 7 on the extrusion die 1 with the threaded groove 72 on the limiting member 71, and then screwing the extrusion die 1 onto the limiting member 71, the two dies can be connected and assembled.
[0044] Specifically, the inner wall of the limiting member 71 is embedded with a heating tube 73.
[0045] Furthermore, the heating tube 73 provided inside the limiting member 71 can preheat the copper wire, thereby ensuring that the insulating material can be better coated on the surface of the copper wire.
[0046] Specifically, the extrusion die 1 has a flow chamber 8 that is connected to the flow control valve 2 inside, and one side of the flow chamber 8 is connected to an extrusion hole 9 that is opened on the inner surface of the extrusion die 1.
[0047] Furthermore, the insulating material enters the flow chamber 8 through the flow control valve 2, and through the extrusion hole 9, the insulating material can be evenly coated on the surface of the copper wire.
[0048] In use, the connector 7 on the extrusion die 1 is aligned with the threaded groove 72 on the limiting member 71, and then the extrusion die 1 is screwed onto the limiting member 71 to connect and assemble the two dies. The size of the cavity through which the copper wire passes through the three sets of extrusion dies 1 increases sequentially. After the three sets of dies are assembled, the copper wire to be processed is passed through the three sets of extrusion dies 1 and the limiting member 71. The heating tube 73 in the limiting member 71 can preheat the copper wire, thereby ensuring that the insulating material can be better coated on the surface of the copper wire.
[0049] In summary, this insulating extrusion multi-die precision distribution device can coat the copper wire surface with insulating material in three stages during use. This effectively reduces the risk of increased wire rigidity and cracking during bending caused by directly coating the copper wire surface with a thick insulating layer. Furthermore, when the insulating material passes through the filter screen 33, it can filter out impurities or larger material particles, thereby effectively reducing subsequent clogging. Pulling the movable plate 35 allows the filter screen 33 to be disassembled for easy replacement.
[0050] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0051] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0052] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0053] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An insulating extrusion multi-die precision dispensing device, comprising an extrusion die (1), characterized in that: The upper surface of the extrusion die (1) is connected to a flow control valve (2), and the upper end of the flow control valve (2) is provided with a distribution component for distributing the flow of multiple dies. The right side of the extrusion die (1) is provided with a disassembly component for disassembling multiple dies. The distribution component includes a flow sensor (3), which is connected to the upper end of the flow control valve (2). The input end of the flow sensor (3) is connected to a delivery pipe (31), and the end of the delivery pipe (31) is connected to a diversion box (32). A filter screen (33) is installed vertically inside the diversion box (32).
2. The insulating extrusion multi-die precision distribution device according to claim 1, characterized in that: Both ends of the filter screen (33) are fixed with limiting plates (34) that are inserted into the diversion box (32), and the upper surface of the filter screen (33) is fixed with a movable plate (35) that is movably connected to the diversion box (32).
3. The insulating extrusion multi-die precision distribution device according to claim 2, characterized in that: One side of the diversion box (32) is connected to a delivery pump (36) via a pipe, and the input end of the delivery pump (36) is connected to a connecting pipe (4).
4. The insulating extrusion multi-die precision distribution device according to claim 3, characterized in that: The end of the connecting pipe (4) is connected to a storage box (5), and the inner wall of the storage box (5) is equipped with an insulation inner plate (6).
5. The insulating extrusion multi-die precision distribution device according to claim 1, characterized in that: The disassembly assembly includes a connector (7) which is welded to the right side of the extrusion die (1).
6. The insulating extrusion multi-die precision dispensing device according to claim 5, characterized in that: The end of the connector (7) is connected to a limiting member (71), and a threaded groove (72) is provided on one side of the limiting member (7) for threaded connection with the connector (7).
7. The insulating extrusion multi-die precision distribution device according to claim 6, characterized in that: The inner wall of the limiting member (71) is embedded with a heating tube (73).
8. The insulating extrusion multi-die precision distribution device according to claim 7, characterized in that: The extrusion die (1) has a flow chamber (8) that communicates with the flow control valve (2) inside, and one side of the flow chamber (8) is connected to an extrusion hole (9) on the inner surface of the extrusion die (1).