Low-smoke low-halogen cable sheath extrusion die
By designing a low-smoke, low-halogen cable sheath extrusion mold with water spray pipe cleaning and threaded connection, the problem of dust on the cable core surface affecting sheath quality was solved, achieving clean and efficient sheath production.
Patent Information
- Application Number
- CN202520222207.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In the current production process of low-smoke, low-halogen cable sheaths, dust and impurities on the surface of the cable core affect the quality of the sheath, and the cleaning effect is not good.
Design a low-smoke, low-halogen cable sheath extrusion mold, comprising a mold core and a mold sleeve. The mold core is equipped with a water spray pipe to clean the cable core. The water spray pipe is connected to a limiting plate. Filter holes are used for impurity filtration. Cooling pipes are used for cooling the injection molding material. The mold sleeve and mold core are threadedly connected for easy disassembly and maintenance.
It effectively removes dust and impurities from the surface of the cable core, ensuring the quality of the sheath, preventing contamination, and improving production efficiency.
Smart Images
Figure CN223750218U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model mainly relates to cable manufacturing technical field, concretely relates to a low smoke low halogen cable sheath extrusion mould. BACKGROUND
[0002] Low smoke low halogen cable is a kind of cable product specially designed to improve safety and environmental protection, it combines multiple advantages such as flame retardant, low smoke release and low corrosivity.This cable releases less smoke when burning, and the concentration of toxic and harmful substances in the smoke is lower, thereby helping to reduce the harm of fire to personnel and environment.At the same time, low smoke low halogen cable also has certain flame retardant performance, can prevent the spread of fire to a certain extent, and gain more time for escape and rescue.
[0003] The production mode of the sheath of low smoke low halogen cable is roughly the same as that of traditional cable sheath, but more materials are needed, so the surface smoothness of cable core is required higher, and the existing cable core is not cleaned when entering the extrusion die through traction mechanism, dust impurities may be adsorbed on the surface of cable core, which will affect the quality of cable sheath finally produced. UTILITY MODEL CONTENTS
[0004] 1. The technical problem to be solved by the utility model:
[0005] The utility model provides a low smoke low halogen cable sheath extrusion die to solve the technical problems in the above background technology.
[0006] 2. Technical scheme:
[0007] To achieve the above purpose, the utility model provides a technical scheme: a low smoke low halogen cable sheath extrusion die, including die core and die cover, and cable core passing between the two after traction, one end of the die cover is fixedly connected with cooling pipe, and the gap between the cooling pipe and cable core forms injection molding channel, and the injection molding channel is connected with the extrusion channel formed by the gap between die core and die cover.
[0008] The die core is internally provided with machining groove, and a plurality of water spray pipes are arranged in the machining groove, the water spray ends of the plurality of water spray pipes are arranged along the circumference of cable core, and the water outlet end faces the cable core, and the water inlet end extends to the outside of die core, the water spray pipe and one end of die core are detachably installed with limiting plate fixed connection, and a plurality of uniformly distributed filter holes are formed in the limiting plate.
[0009] Further, the die core outer wall is provided with first outer thread, and the first outer thread and the first inner thread arranged on the inner wall of die cover are matched with each other.
[0010] Further, one end of the limiting plate is fixedly connected with a connecting sleeve, the connecting sleeve is matched with a first annular groove formed in the end of the mold core, and a second external thread is arranged on the outer wall of the connecting sleeve, which is matched with a second internal thread arranged on the inner wall of the first annular groove.
[0011] Further, a second annular groove is formed in one end of the mold sleeve, the second annular groove is communicated with the material extruding channel, and is communicated with the filling pipe fixedly connected to the outer side of the mold sleeve.
[0012] Further, the cooling pipe is hollow, and is communicated with the liquid inlet pipe and the liquid outlet pipe arranged on the two sides of the outer wall of the cooling pipe.
[0013] Further, the processing groove is provided with a fixing sleeve, the fixing sleeve is coaxial with the cable core, and the inner wall of the fixing sleeve is attached with wiping cotton through magic tape.
[0014] Further, a partition plate is further arranged in the processing groove, and the partition plate is located between the water spraying pipe and the fixing sleeve.
[0015] 3. Beneficial effects:
[0016] Compared with the prior art, the technical scheme has the following beneficial effects: when the cable core passes through the mold core and the mold sleeve through the traction mechanism, the circumferentially arranged water spraying pipes can clean the surface of the cable to remove dust and impurities, so that the quality of the subsequent cable sheath is not affected, and the generated sewage can flow into the drainage groove through the filter holes, and the impurities are blocked by the filter holes and remain in the processing groove, so that pollution is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole structure schematic view of the utility model;
[0018] Figure 2 It is a whole explosion structure schematic view of the utility model;
[0019] Figure 3 It is a whole cut structure schematic view of the utility model;
[0020] Figure 4 It is a whole structure schematic view of the utility model; Figure 3 It is an enlarged structure schematic view of A in the utility model;
[0021] Figure 5 It is an enlarged structure schematic view of B in the utility model; Figure 3 It is an enlarged structure schematic view of B in the utility model;
[0022] Figure 6 It is an enlarged structure schematic view of C in the utility model. Figure 3 It is an enlarged structure schematic view of C in the utility model.
[0023] REFERENCE SIGNS:
[0024] 1, mold core; 101, processing groove; 102, first annular groove; 2, mold jacket; 201, second annular groove; 3, extrusion channel; 4, cooling pipe; 5, injection channel; 6, limiting plate; 601, filter hole; 7, water jet pipe; 8, first external thread; 9, first internal thread; 10, connecting sleeve; 11, second external thread; 12, second internal thread; 13, filling pipe; 14, liquid inlet pipe; 15, liquid outlet pipe; 16, fixing sleeve; 17, wiping cotton; 18, partition plate. DETAILED DESCRIPTION
[0025] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0026] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0027] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0028] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. EMBODIMENT
[0029] Referring to the drawings Figures 1-6The utility model relates to a low smoke low halogen cable sheath extrusion die, including mould core 1 and mould cover 2 and the cable core that passes between the traction back from both, one end of mould cover 2 is fixedly connected with cooling pipe 4, and the gap between cooling pipe 4 and cable core forms injection channel 5, and injection channel 5 is connected with the extrusion channel 3 formed by the gap between mould core 1 and mould cover 2 and communicates,
[0030] The inside of the mould core 1 is provided with a processing groove 101, and a plurality of water spray pipes 7 are arranged in the processing groove 101, the water spray ends of the plurality of water spray pipes 7 are arranged along the circumference of the cable core, the water outlet ends of the water spray pipes 7 are directed towards the cable core, and the water inlet ends of the water spray pipes 7 extend to the outside of the mould core 1, the water spray pipes 7 are fixedly connected with a limiting plate 6 which is detachably arranged at one end of the mould core 1, and a plurality of filtering holes 601 are arranged on the limiting plate 6.
[0031] In the embodiment, when the cable core passes through the mould core 1 and the mould cover 2 through the traction mechanism, the circumferentially arranged water spray pipes 7 can clean the surface of the cable to remove dust and impurities, and the generated sewage can flow into the drainage groove through the filtering holes 601, and the impurities are blocked by the filtering holes 601 and remain in the processing groove 101, then the injection in the extrusion channel 3 flows into the injection channel 5, and the injection is cooled and solidified to form a sheath wrapped on the surface of the cable core.
[0032] The outer wall of the mould core 1 is provided with a first external thread 8, and the first external thread 8 is matched with a first internal thread 9 arranged on the inner wall of the mould cover 2.
[0033] In the embodiment, the mould core 1 and the mould cover 2 are threadedly connected, so that the mould core 1 and the mould cover 2 can be conveniently disassembled and maintained.
[0034] One end of the limiting plate 6 is fixedly connected with a connecting sleeve 10, the connecting sleeve 10 is matched with a first annular groove 102 arranged at the end of the mould core 1, and the outer wall of the connecting sleeve 10 is provided with a second external thread 11, and the second external thread 11 is matched with a second internal thread 12 arranged on the inner wall of the first annular groove 102.
[0035] In the embodiment, the connecting sleeve 10 and the first annular groove 102 are threadedly connected, so that the connecting sleeve 10 and the first annular groove 102 can be disassembled, and the filtering holes 601 of the limiting plate 6 and the impurities collected in the processing groove 101 can be cleaned.
[0036] One end of the mould cover 2 is provided with a second annular groove 201, the second annular groove 201 is communicated with the extrusion channel 3, and the second annular groove 201 is communicated with a filling pipe 13 fixedly connected to the outer side of the mould cover 2.
[0037] In the embodiment, the injection material can be added into the second annular groove 201 through the filling pipe 13, and the injection material can flow into the extrusion channel 3.
[0038] The cooling pipe 4 is hollow inside and communicates with the liquid inlet pipe 14 and the liquid outlet pipe 15 arranged on both sides of the outer wall thereof.
[0039] In the embodiment, after the cooling liquid is injected into the liquid inlet pipe 14, the cooling liquid can enter the hollow part of the cooling pipe 4 and be discharged from the liquid outlet pipe 15, thereby taking away the heat of the injection molding material and used for rapidly cooling and fastening the injection molding material.
[0040] The processing groove 101 is provided with a fixing sleeve 16 coaxial with the cable core and having the wiping cotton 17 adhered to the inner wall through the magic tape.
[0041] In the embodiment, after the cable core is cleaned by the water spraying pipe 7, the cable core enters the fixing sleeve 16 and the wiping cotton 17 inside the fixing sleeve 16 wipes off the water, and the wiping cotton 17 is adhered to the inner wall of the fixing sleeve 16 through the magic tape, which is convenient for replacement.
[0042] The processing groove 101 is further provided with a partition plate 18 between the water spraying pipe 7 and the fixing sleeve 16.
[0043] In the embodiment, the partition plate 18 is used for avoiding the water sprayed by the water spraying pipe 7 from making the wiping cotton 17 damp and affecting the wiping effect.
[0044] The above-described embodiments only express certain implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the utility model patent scope; it should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model; therefore, the protection scope of the utility model patent should be subject to the appended claims.
[0045] It should be noted that the above content belongs to the technical cognition range of the inventor, and since the technical content in the art is vast and complex, the above content of the present application does not necessarily constitute the prior art.
Claims
1. A low smoke low halogen cable jacket extrusion die comprising a die core (1) and a die shell (2) and a cable core drawn therebetween after passing through both, characterised in that: The mold cover (2) is fixedly connected with a cooling pipe (4) at one end, the gap between the cooling pipe (4) and the cable core forms an injection channel (5), and the injection channel (5) is in communication with an extrusion channel (3) formed by the gap between the mold core (1) and the mold cover (2). A processing groove (101) is formed in the mold core (1), a plurality of water spraying pipes (7) are arranged in the processing groove (101), the water spraying ends of the plurality of water spraying pipes (7) are arranged along the circumference of the cable core, the water outlet ends of the water spraying pipes (7) are directed towards the cable core, and the water inlet ends of the water spraying pipes (7) extend to the outside of the mold core (1), the water spraying pipes (7) are fixedly connected with a limiting plate (6) which is detachably installed at one end of the mold core (1), and a plurality of filtering holes (601) are formed in the limiting plate (6).
2. A low smoke low halogen cable jacket extrusion die according to Claim 1 characterized in that: A first outer thread (8) is arranged on the outer wall of the mold core (1), and the first outer thread (8) is matched with a first inner thread (9) arranged on the inner wall of the mold cover (2).
3. A low smoke low halogen cable jacket extrusion die according to Claim 1, characterized in that: One end of the limiting plate (6) is fixedly connected with a connecting sleeve (10), the connecting sleeve (10) is matched with a first annular groove (102) formed at the end of the mold core (1), an outer wall of the connecting sleeve (10) is provided with a second outer thread (11), and the second outer thread (11) is matched with a second inner thread (12) arranged on the inner wall of the first annular groove (102).
4. A low smoke, low halogen cable jacket extrusion die according to Claim 1, characterized by: One end of the mold cover (2) is provided with a second annular groove (201), the second annular groove (201) is in communication with the extrusion channel (3) and is in communication with a filling pipe (13) fixedly connected to the outside of the mold cover (2).
5. A low smoke, low halogen cable jacket extrusion die according to Claim 1, characterized by: The cooling pipe (4) is hollow and is in communication with liquid inlet pipes (14) and liquid outlet pipes (15) arranged on both sides of the outer wall of the cooling pipe (4).
6. A low smoke, low halogen cable jacket extrusion die according to Claim 1, characterized by: The processing groove (101) is provided with a fixing sleeve (16), the fixing sleeve (16) is coaxial with the cable core, and a wiping cotton (17) is attached to the inner wall of the fixing sleeve (16) by magic tape.
7. A low smoke low halogen cable jacket extrusion die according to Claim 6, characterized in that: A partition plate (18) is further arranged in the processing groove (101), and the partition plate (18) is located between the water spraying pipes (7) and the fixing sleeve (16).