Wire insulating layer filtering extrusion head

Abstract

The utility model discloses a wire insulating layer filtering extrusion head, and relates to the technical field of wire production devices. The device structurally comprises an extrusion head and a filtering tank, the extrusion head is of a conical structure and is provided with an external thread connector connected with an extruder; a plurality of communicating joints are arranged on the outer wall of the extrusion head; the filtering tank is mounted on the communicating joint through a threaded cover; an annular plate is vertically fixed on the inner wall of the extrusion head; a first circular ring matched with the outer wall of the wire core is fixed in the middle of the circular plate; the annular plate is arranged in the middle of the communicating connector. Through the arrangement of the extrusion head with the filter tank and the filter plate and the design of the wire core guide carding device, the wire core can be pretreated before entering the extrusion head, surface burrs are removed, and the workload of the first circular ring is reduced; meanwhile, by installing a ring cylinder magnet and a scrap iron collecting ring bin, metal impurities in the molten material are effectively removed and collected, the additional burden of the impurities on the filtering tank is avoided, and efficient operation of the filtering system is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire production devices, and particularly relates to a wire insulation layer filtering extrusion head. Background Technique

[0002] In the process of wire manufacturing, the extrusion and coating of the insulation layer are key steps to ensure the quality and safety of the cable. The traditional extrusion head design usually only focuses on the extrusion molding of the insulation material, while ignoring the pretreatment of the wire core surface and the impact of possible impurities in the molten material on the quality of the final product. Burrs or irregular protrusions may exist on the untreated wire core surface, and these defects may be wrapped by the insulation layer during the extrusion and coating process, resulting in an uneven cable surface and affecting the appearance and performance of the cable. The molten insulation layer material may contain unmelted particles or impurities, such as hard impurities like iron filings. If these impurities cannot be effectively removed, they will be embedded in the insulation layer, reducing the electrical performance and mechanical strength of the cable. In view of the above problems, the utility model provides a wire insulation layer filtering extrusion head. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a wire insulation layer filtering extrusion head, which optimizes the design and increases the filtering function by combining the extrusion head, the filtering tank and the wire core guiding and combing device, so as to improve the quality and production efficiency of the cable product.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model is a wire insulation layer filtering extrusion head, including an extrusion head and a filtering tank; the extrusion head has a conical structure and is provided with an external thread joint connected to the extruder; a plurality of communication joints are arranged on the outer wall of the extrusion head; the filtering tank is installed on the communication joints through a threaded cover; a circular ring plate is vertically fixed on the inner wall of the extrusion head; a first circular ring matching the outer wall of the wire core is fixed in the middle of the circular ring plate; the circular ring plate is placed in the middle of the communication joints.

[0006] As a preferred technical solution of the utility model, the filtering tank includes a circular tank; a circular ring end plate is arranged at the open end of the circular tank; a filtering plate extending to the outside is fixed inside the circular tank, and the filtering plate divides the internal space of the circular tank equally; rectangular slots for inserting and matching with the filtering plate are jointly opened on the inner wall of the communication joint and the circular ring plate.

[0007] As a preferred technical solution of the utility model, a ring groove is opened on the inner wall of the threaded connection end of the extrusion head; a wire core guiding and combing device is installed in the ring groove.

[0008] As a preferred technical solution of the present utility model, the wire core guiding and combing device includes a circular sleeve that cooperates with the annular groove; two coaxially arranged second annular rings are respectively arranged inside both ends of the circular sleeve; the two second annular rings are respectively connected and fixed to the inner wall of the circular sleeve through four support plates.

[0009] As a preferred technical solution of the present utility model, an annular cylinder magnet is installed inside the circular sleeve between the two circles of support plates.

[0010] As a preferred technical solution of the present utility model, an iron filings collection ring bin is also installed inside the circular sleeve between the two circles of support plates; the collection ring bin includes an annular cavity; an annular plate with an L-shaped cross-section is fixed on the inner circular surface of the annular cavity; a storage groove is formed between the annular plate and the inner circular surface of the annular cavity; the contact end of the annular cylinder magnet and the iron filings collection ring bin is placed in the storage groove.

[0011] As a preferred technical solution of the present utility model, four positioning pin columns are fixed at one end of the circular sleeve where the iron filings collection ring bin is located; four positioning slots that cooperate with the positioning pin columns are opened on the inner end surface of the annular groove.

[0012] The present utility model has the following beneficial effects:

[0013] 1. By redesigning the extrusion head and providing a filter tank and a filter plate thereon, the present utility model can effectively remove the unmelted particles or impurities in the molten insulating layer material, ensure that the surface of the cable is smooth without protruding foreign objects, and improve the overall quality of the cable.

[0014] 2. Through the design of the first annular ring, the present utility model ensures that the surface of the wire core is free of burrs before coating, avoiding damage to the wire core during the extrusion process; the addition of the wire core guiding and combing device, through the internal second annular ring and support plate structure, can pre-treat the surface of the wire core before filtration, smooth or scrape off the burrs on the surface of the wire core, and further reduce the burden of the subsequent filtration link.

[0015] 3. By installing the annular cylinder magnet, the present utility model can effectively adsorb and remove the iron filings in the molten insulating layer material, preventing these hard impurities from affecting the performance and safety of the cable; the design of the iron filings collection ring bin ensures that the iron filings adsorbed by the annular cylinder magnet will not fall off and enter the filter tank again, reducing the workload of the filter tank and facilitating the centralized treatment of the iron filings.

[0016] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the extrusion head.

[0020] Figure 3 It is a schematic structural diagram of the filter tank.

[0021] Figure 4 It is a schematic structural diagram of the second embodiment of the present utility model.

[0022] Figure 5 For Figure 4 axial sectional view of

[0023] Figure 6 For Figure 5 local enlarged view at A in

[0024] Figure 7 It is a schematic structural diagram of the core guiding and combing device.

[0025] In the drawings, the list of components represented by each reference numeral is as follows:

[0026] 1 - extrusion head, 2 - filter tank, 3 - threaded cap, 4 - core guiding and combing device, 11 - connecting joint, 12 - circular ring plate, 13 - first circular ring, 14 - rectangular slot, 15 - annular groove, 16 - positioning slot, 21 - circular tank, 22 - circular ring end plate, 23 - filter plate, 41 - circular sleeve, 42 - second circular ring, 43 - support plate, 44 - annular cylinder magnet, 45 - iron filings collecting ring bin, 46 - positioning pin column, 451 - annular cavity, 452 - ring plate, 453 - storage tank. Specific embodiments

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model. Specific embodiment one:

[0029] Please refer to Figures 1-3As shown in the figure, the utility model relates to a filtering extrusion head for a wire insulating layer, which comprises an extrusion head 1 and a filtering tank 2. The extrusion head 1 is in a conical structure and is provided with an external thread joint connected to an extruder. A plurality of connecting joints 11 are arranged on the outer wall of the extrusion head 1. The filtering tank 2 is installed on the connecting joint 11 through a threaded cover 3. A circular ring plate 12 is vertically fixed on the inner wall of the extrusion head 1. A first circular ring 13 matching with the outer wall of the wire core is fixed in the middle of the circular ring plate 12. The circular ring plate 12 is placed in the middle of the connecting joint 11.

[0030] Among them, the filtering tank 2 specifically comprises a circular tank 21. A circular ring end plate 22 is arranged at the opening end of the circular tank 21. A filter plate 23 extending to the outside is fixed inside the circular tank 21, and the filter plate 23 bisects the internal space of the circular tank 21. A rectangular slot 14 for inserting and matching with the filter plate 23 is jointly opened on the inner wall of the connecting joint 11 and the circular ring plate 12.

[0031] During implementation, the inner diameter of the first circular ring 13 is adapted to the outer diameter of the wire core. The wire core passes through the first circular ring 13 to ensure that the front surface of the wire core before coating has no burrs. The molten insulating layer material gushes out from the extrusion head 1 into the filtering tank 2, and is intercepted by the filter plate 23 inside it to intercept unmolten or foreign particles, ensuring that there are no raised foreign objects on the outer surface of the wire core after coating, and effectively improving the quality of the wire and cable extrusion process. Specific Embodiment Two:

[0033] On the basis of Specific Embodiment One, the difference in this embodiment is:

[0034] As Figures 2-7 shown, a ring groove 15 is opened on the inner wall of the threaded connection end of the extrusion head 1. A wire core guiding and combing device 4 is installed in the ring groove 15. The wire core guiding and combing device 4 specifically comprises a circular sleeve 41 matching with the ring groove 15. Two second circular rings 42 arranged coaxially are respectively arranged inside the two ends of the circular sleeve 41. The two second circular rings 42 are respectively connected and fixed to the inner wall of the circular sleeve 41 through four support plates 43. The two second circular rings 42 of the wire core guiding and combing device 4 pre-treat the surface of the wire core, smooth or scrape off the burrs on the surface of the wire core before filtering in the filtering tank 2, and reduce the workload of the first circular ring 13.

[0035] In order to remove iron filings from the insulating layer material for wire and cable coating in a molten state, a ring-shaped cylinder magnet 44 is installed inside the circular sleeve 41 between the two circles of support plates 43.

[0036] In order to prevent the iron filings adsorbed by the surface ring cylinder magnet 44 from detaching again and increasing the workload of the filter tank 2, an iron filings collection ring bin 45 is also installed inside the circular sleeve 41 between two circles of support plates 43. The collection ring bin 45 includes an annular cavity 451. An annular plate 452 with an L-shaped cross-section is fixed on the inner circular surface of the annular cavity 451. A storage groove 453 is formed between the annular plate 452 and the inner circular surface of the annular cavity 451. The contact end of the ring cylinder magnet 44 with the iron filings collection ring bin 45 is placed in the storage groove 453, effectively ensuring that the iron filings detached from the ring cylinder magnet 44 enter the iron filings collection ring bin 45.

[0037] In order to ensure the stable installation of the wire core guiding comb 4 in the extrusion head 1, four positioning pin columns 46 are fixed at one end of the circular sleeve 41 where the iron filings collection ring bin 45 is located. Four positioning slots 16 that cooperate with the positioning pin columns 46 are opened on the inner end surface of the ring groove 15.

[0038] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A wire insulation layer filtering extrusion head, characterized in that: It includes an extrusion head (1) and a filtering tank (2); The extrusion head (1) has a conical structure and is provided with an external thread joint connected to an extruder; several connecting joints (11) are arranged on the outer wall of the extrusion head (1); the filtering tank (2) is installed on the connecting joint (11) through a threaded cover (3); A circular ring plate (12) is vertically fixed to the inner wall of the extrusion head (1); a first circular ring (13) matching the outer wall of the wire core is fixed in the middle of the circular ring plate (12); the circular ring plate (12) is placed in the middle of the connecting joint (11).

2. The wire insulation layer filtering extrusion head according to claim 1, characterized in that, The filtering tank (2) includes a circular tank (21); a circular ring end plate (22) is arranged at the open end of the circular tank (21); a filtering plate (23) extending to the outside is fixed inside the circular tank (21), and the filtering plate (23) bisects the internal space of the circular tank (21); a rectangular slot (14) for plugging and matching with the filtering plate (23) is jointly opened on the inner wall of the connecting joint (11) and the circular ring plate (12).

3. The wire insulation layer filtering extrusion head according to claim 1, characterized in that A ring groove (15) is opened on the inner wall of the threaded connection end of the extrusion head (1); a wire core guiding and combing device (4) is installed in the ring groove (15).

4. The wire insulation layer filtering extrusion head according to claim 3, characterized in that, The wire core guiding and combing device (4) includes a circular sleeve (41) matching the ring groove (15); two coaxially arranged second circular rings (42) are respectively arranged at both ends inside the circular sleeve (41); the two second circular rings (42) are respectively connected and fixed to the inner wall of the circular sleeve (41) through four support plates (43).

5. The wire insulation layer filtering extrusion head according to claim 4, wherein An annular cylinder magnet (44) is installed inside the circular sleeve (41) between the two circles of support plates (43).

6. The wire insulation layer filtering extrusion head according to claim 5, characterized in that, An iron filings collecting ring bin (45) is also installed inside the circular sleeve (41) between the two circles of support plates (43); the collecting ring bin (45) includes an annular cavity (451); an L-shaped ring plate (452) is fixed to the inner circular surface of the annular cavity (451); a storage groove (453) is formed between the ring plate (452) and the inner circular surface of the annular cavity (451); the contact end of the annular cylinder magnet (44) and the iron filings collecting ring bin (45) is placed in the storage groove (453).

7. The wire insulation layer filtering extrusion head according to claim 6, characterized in that, Four positioning pin columns (46) are fixed to one end of the circular sleeve (41) where the iron filings collecting ring bin (45) is located; four positioning slots (16) matching the positioning pin columns (46) are opened on the inner end surface of the ring groove (15).

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