CN219191215U - Flame-retardant PVC cable material production extruder die head - Google Patents

Abstract

The utility model relates to the field of cable material production devices and discloses a flame-retardant PVC (polyvinyl chloride) cable material production extruder die head, which comprises a shell, wherein an inner core is sleeved in the shell in a sliding way, an extrusion cavity is formed in the inner core, a mounting groove is formed in the upper end face of the inner core, an extrusion opening is formed in the mounting groove, a conical head opening is formed in the extrusion opening, an outer jacket is sleeved on the outer surface of the shell, a plurality of heating pipes are fixedly arranged in the shell and surround the extrusion cavity, and a matching clamping edge is fixedly arranged at the position, close to the upper end, of the outer side of the inner core and is clamped with the upper end of the shell. According to the die head of the flame-retardant PVC cable material production extruder, all the components can be disassembled, the cleaning and the maintenance are very convenient, and the heating pipe is arranged in the shell, so that the solidification and blockage of an extrusion port of an unextruded cable material can be prevented.

Description

A flame retardant PVC cable material production extruder die head

technical field

The utility model relates to the field of cable material production devices, in particular to a flame-retardant PVC cable material production extruder die head.

Background technique

Plastics for wire and cable insulation and sheathing are commonly known as cable materials, including rubber, plastic, nylon and other varieties, among which flame-retardant PVC is mostly used. Cable material production enterprises take cable production enterprises as users, as long as there is demand for wires and cables, there will be a market for cable materials. Except for bare wire products such as steel-cored aluminum stranded wire and electromagnetic wire, almost all wire and cable products require an insulation layer. Therefore, from a period of time, cable materials have a broad market development prospect in our country.

The production of cable materials needs to go through the process of melting and extrusion. During extrusion, the required shape is formed through the extrusion die of the extruder, and then cut after cooling. The cable material that is extruded in time is easy to solidify due to the temperature drop, thereby blocking the extrusion die head. At this time, the die head needs to be disassembled for cleaning. It is inconvenient to disassemble and clean up. Therefore, those skilled in the art provide a flame-retardant PVC cable material production extruder die head to solve the problems raised in the above-mentioned background technology.

Utility model content

The purpose of this utility model is to solve the shortcomings in the prior art, and propose a flame-retardant PVC cable material production extruder die head, each part of the die head can be disassembled, and it is very convenient for cleaning and maintenance. A heating tube is arranged inside the shell, which can prevent the unextruded cable material from solidifying and blocking the extrusion port.

In order to achieve the above object, the utility model provides the following technical solutions:

A flame-retardant PVC cable material production extruder die head, including a shell, the inner sliding sleeve of the shell is provided with an inner core, the inner core is provided with an extrusion cavity, and the upper end surface of the inner core is provided with An installation groove, the interior of the installation groove is provided with an extrusion port, the interior of the extrusion port is provided with a cone mouth, and the outer surface of the shell is provided with an outer sheath;

The inside of the shell is fixedly provided with a plurality of heating tubes around the extrusion cavity, and the outer side of the inner core is fixedly provided with a matching card edge near the upper end, and the matching card edge is clamped with the upper end of the shell;

Through the above technical solution, the shell, inner core and extrusion port can all be disassembled, which is very convenient for cleaning and maintenance. At the same time, the detachable extrusion port is also convenient for model replacement. It is not necessary to replace the entire die head, which is convenient to use and can also reduce The use cost is low, and a heating pipe is arranged inside the shell, which can heat and keep the unextruded cable material, and can prevent the melted cable material from solidifying and blocking the extrusion port.

Further, the outer sheath includes two connecting half-covers, the inner sides of the two connecting half-covers are fixedly connected with thermal insulation pads, and both ends of the two connecting half-covers are fixedly connected with connectors, the The connecting heads are matched in pairs and connected by connecting bolts;

Through the above technical solution, the outer sheath can keep the shell warm.

Further, the matching card edge is engaged with the upper end of the housing and connected to the housing through a plurality of first connecting screws;

Through the above technical solution, after the connecting screw is unscrewed, the matching card edge and the shell can be disassembled, so that the inner core can be taken out.

Further, the outer upper end of the extrusion port is fixedly connected with a connecting edge, and the connecting edge is connected with the upper end surface of the inner core with a second connecting screw;

Through the above technical solution, the extrusion port can be disassembled after the second connecting screw is unscrewed.

Further, a gasket is provided between the lower end of the extrusion port and the installation groove;

Through the above technical solution, the sealing pad can enhance the sealing performance between the extrusion port and the installation groove.

Further, the inner lower end of the housing is fixedly provided with a clamping seat;

Through the above technical solution, the clamping seat is used to limit the inner core.

Further, the outer lower end of the housing is fixedly provided with a mounting edge, and the upper end surface of the mounting edge is provided with a plurality of mounting holes;

Through the above technical proposal, the installation edge and the installation hole are provided to facilitate the installation of the die head and the extruder.

Further, the diameter of the lower end of the cone mouth and the upper end of the extrusion chamber cooperate with each other;

Through the above technical scheme, the cable material can smoothly pass through the extrusion cavity and enter the mouth of the cone head.

The utility model has the following beneficial effects:

1. The utility model proposes a flame-retardant PVC cable material production extruder die head. When the die head is in use, it is composed of a shell, an inner core and an extrusion port as a whole. At the same time, all parts can be disassembled for cleaning and maintenance. very convenient.

2. The utility model proposes a flame-retardant PVC cable material production extruder die head. After the second connecting screw is unscrewed, the set extrusion port can be disassembled, so as to facilitate maintenance and replace different models. Extrusion mouth, no need to replace the whole die head, easy to use, and can also reduce the cost of use.

3. The die head of a flame-retardant PVC cable material production extruder proposed by the utility model has a heating tube inside the shell, which can heat and keep the unextruded cable material inside the extrusion cavity and the cone mouth, and can Effectively prevent the melted cable material from rapidly solidifying due to temperature drop and block the extrusion port.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a kind of flame-retardant PVC cable material production extruder die head that the utility model proposes;

Fig. 2 is the internal structure schematic diagram of a kind of flame-retardant PVC cable material production extruder die head that the utility model proposes;

Fig. 3 is the expanded structure schematic diagram of a kind of flame-retardant PVC cable material production extruder die head that the utility model proposes;

Fig. 4 is a structural schematic diagram of an outer sheath of a flame-retardant PVC cable material production extruder die proposed by the utility model.

illustration:

1. Outer shell; 2. Inner core; 3. Extrusion port; 4. Installation edge; 5. Installation hole; 6. Outer sheath; 7. Connection half sleeve; 8. Extrusion chamber; 9. Heating pipe; 10. Coordination Card edge; 11. First connecting screw; 12. Cone head opening; 13. Second connecting screw; 14. Card socket; 15. Installation groove; 16. Gasket; 17. Connecting edge; 18. Connecting head; 19 , Connecting bolts; 20, Insulation pad.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figures 1-4, an embodiment provided by the utility model: a flame-retardant PVC cable material production extruder die head, including a shell 1, the inner sliding sleeve of the shell 1 is provided with an inner core 2, and the inner core 2 There is an extrusion cavity 8 inside, an installation groove 15 is opened on the upper surface of the inner core 2, an extrusion port 3 is arranged inside the installation groove 15, a cone mouth 12 is opened inside the extrusion port 3, and the outer surface of the shell 1 is sleeved There is outer sheath 6.

A plurality of heating tubes 9 are fixedly arranged inside the shell 1 around the extrusion cavity 8 , and a matching clip edge 10 is fixedly arranged on the outer side of the inner core 2 near the upper end, and the clip edge 10 is clipped with the upper end of the shell 1 .

The outer sheath 6 includes two connection half-covers 7, the inner sides of the two connection half-covers 7 are fixedly connected with heat preservation pads 20, and the two ends of the two connection half-covers 7 are fixedly connected with connectors 18, and the connectors 18 are connected in pairs. Cooperate and connect through the connecting bolts 19, the outer sheath 6 can play a thermal insulation effect on the shell 1, and the matching card edge 10 is clamped with the upper end of the shell 1 and connected with the shell 1 through a plurality of first connecting screws 11, and the first connecting After the screw 11 is unscrewed, the mating card edge 10 and the shell 1 can be disassembled, so that the inner core 2 can be taken out, the outer upper end of the extrusion port 3 is fixedly connected with a connecting edge 17, and the connecting edge 17 is connected with the upper end surface of the inner core 2 with a second Two connecting screws 13, the extrusion port 3 can be disassembled after the second connecting screw 13 is unscrewed, a gasket 16 is arranged between the lower end of the extrusion port 3 and the installation groove 15, and the gasket 16 can strengthen the extrusion port 3 and the installation The tightness between the grooves 15, the inner lower end of the shell 1 is fixedly provided with a clamping seat 14, the clamping seat 14 is used to limit the inner core 2, the outer lower end of the shell 1 is fixedly provided with a mounting edge 4, and the mounting edge 4 A plurality of installation holes 5 are provided on the upper end surface of the die, and the installation edge 4 and the installation holes 5 are provided to facilitate the installation of the die head and the extruder. The material can pass through the extrusion cavity 8 and enter the cone mouth 12 smoothly.

Working principle: the die head is installed on the extrusion end of the extruder when in use, the inner core 2 can be taken out from the shell 1 by unscrewing the first connecting screw 11, and the second connecting screw 13 can be unscrewed The extrusion port 3 is disassembled from the inner core 2, which is convenient for cleaning and maintenance. At the same time, the detachable extrusion port 3 is also convenient for model replacement. When replacing, it is not necessary to replace the entire die head, which is convenient to use and can reduce the cost of use. A heating pipe 9 is provided to heat and keep the unextruded cable material inside the extrusion cavity 8 and the cone mouth 12, which can effectively prevent the melted cable material from rapidly solidifying due to temperature drop and block the extrusion port 3.

Finally, it should be noted that: the above is only a preferred embodiment of the utility model, and is not intended to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model, All should be included within the protection scope of the present utility model.

Claims (8)

1. A kind of flame-retardant PVC cable material produces extruder die head, comprises shell (1), is characterized in that: the internal sliding cover of described shell (1) is provided with inner core (2), and described inner core (2) ) is provided with an extrusion cavity (8), the upper end surface of the inner core (2) is provided with a mounting groove (15), and the inside of the mounting groove (15) is provided with an extrusion port (3), the extrusion The inside of the outlet (3) is provided with a cone mouth (12), and the outer surface of the shell (1) is covered with an outer sheath (6); The inside of the outer casing (1) is fixedly provided with a plurality of heating tubes (9) around the extrusion cavity (8), and the outer side of the inner core (2) is fixedly provided with a matching card edge (10) near the upper end, so that The matching card edge (10) is clamped with the upper end of the shell (1). 2. A kind of flame-retardant PVC cable material production extruder die head according to claim 1, is characterized in that: described outer sheath (6) comprises two connection halves (7), two described connection The inner sides of the half-covers (7) are fixedly connected with thermal insulation pads (20), and the two ends of the two connected half-covers (7) are fixedly connected with connectors (18), and the connectors (18) are matched in pairs. And connect by connecting bolt (19). 3. A flame retardant PVC cable material production extruder die head according to claim 1, characterized in that: said matching clip edge (10) is clipped with the upper end of the casing (1) and passed through a plurality of first Connecting screw (11) is connected with shell (1). 4. The extruder die head for producing flame-retardant PVC cable material according to claim 1, characterized in that: the outer upper end of the extrusion port (3) is fixedly connected with a connecting edge (17), and the connecting edge (17) A second connecting screw (13) is connected to the upper end surface of the inner core (2). 5. The die head of a flame-retardant PVC cable material production extruder according to claim 1, characterized in that: a gasket (16) is arranged between the lower end of the extrusion port (3) and the installation groove (15) ). 6. The die head of a flame-retardant PVC cable material production extruder according to claim 1, characterized in that: the inner lower end of the housing (1) is fixedly provided with a clamping seat (14). 7. A kind of flame-retardant PVC cable material production extruder die head according to claim 1, is characterized in that: the outer lower end of described casing (1) is fixedly provided with installation edge (4), and described installation edge ( 4) The upper end surface is provided with a plurality of mounting holes (5). 8. A flame-retardant PVC cable material production extruder die head according to claim 1, characterized in that: the diameter of the lower end of the cone mouth (12) and the upper end of the extrusion chamber (8) are mutually Cooperate.

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