CN210211163U

CN210211163U - Injection molding nozzle for cold-contraction cable accessories

Info

Publication number: CN210211163U
Application number: CN201921166729.0U
Authority: CN
Inventors: Wenlong Wu; 吴文龙; Xiaohui Wu; 吴晓晖; Zhiwen Shen; 沈志文
Original assignee: Suzhou Yabo Cold And Heat-Shrinkable Products Co Ltd
Current assignee: Suzhou Yabo Cold And Heat-Shrinkable Products Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-03-31
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a cold contraction cable accessory injection molding spray head, which comprises a spray pipe and an external thread insertion pipe, wherein the top end port of the spray pipe is fixedly connected with the external thread insertion pipe through mutual engagement between threads, the top end port of the external thread insertion pipe is fixedly connected with the bottom end port of a nozzle through welding, the annular outer surface of the nozzle is provided with a nut near the bottom end, the inner wall of the nut is fixed with the outer wall of the nozzle through welding, a positioning nut is welded at the edge of the bottom end of the vertical annular outer surface of the spray pipe, the positioning nut is sleeved with the spray pipe, the bottom end port of the spray pipe is fixedly connected with the positioning insertion pipe through welding, the problem that the material yield is reduced in the discharging process caused by solidification of residues in the pipeline can be avoided, on the other hand, the heating ring adopts direct current low voltage power supply, and the electric, is safer and more efficient.

Description

Injection molding nozzle for cold-contraction cable accessories

Technical Field

The utility model belongs to the technical field of the shrinkage cable accessories is relevant, concretely relates to shrinkage cable accessories shower nozzle of moulding plastics.

Background

The cold contraction type cable accessory is made up by using elastomer material (commonly used silicone rubber and ethylene-propylene rubber) and making injection vulcanization moulding in factory, then making diameter-expansion and lining with plastic spiral support to form various cable accessory components.

The existing injection molding nozzle technology for cold-contraction cable accessories has the following problems: the bore of the injection molding nozzle is narrow, after the injection molding is finished, the injection molding nozzle cannot be well cleaned, and the phenomenon that the nozzle is blocked or the nozzle is rough can be easily caused after cooling, so that the problems that the nozzle is blocked or the discharging is not formed during injection molding are solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shrinkage cable accessories shower nozzle of moulding plastics to the bore of the shower nozzle of moulding plastics that proposes in solving above-mentioned background art is comparatively narrow, finishes the back moulding plastics, can not be fine clear up, easily after the cooling, appears the shower nozzle and blocks up or the coarse phenomenon of shower nozzle department, causes the fashioned problem of shower nozzle putty or ejection of compact to appear when moulding plastics again.

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

a cold contraction cable accessory injection molding spray head comprises a spray pipe and an external thread insertion pipe, wherein the top end port of the spray pipe is fixedly connected with the external thread insertion pipe through mutual meshing between threads, the top end port of the external thread insertion pipe is fixedly connected with the bottom end port of a nozzle through welding, a nut is arranged on the annular outer surface of the nozzle at a position close to the bottom end, the inner wall of the nut is fixed with the outer wall of the nozzle through welding, a positioning nut is welded at the edge of the bottom end of the vertical annular outer surface of the spray pipe and is sleeved with the spray pipe, the bottom end port of the spray pipe is fixedly connected with the positioning insertion pipe through welding, a heating ring is arranged on the upper side of the positioning nut and is sleeved on the outer surface of the spray pipe, the heating ring comprises a heat preservation layer, a heating layer and a wiring layer, the annular outer, the surface of zone of heating has the heat preservation through welded connection, the top of heat preservation is being close to both ends edge welding respectively to peg graft and is having the wiring.

Preferably, the nozzle is provided with a through-hole at the tip end thereof.

Preferably, the external threaded insertion pipe can rotate relative to the spray pipe by exerting force on the nut, the external threaded insertion pipe is gradually sleeved in the spray pipe when the nut rotates clockwise, and the external threaded insertion pipe is gradually separated from the sleeve of the spray pipe for the external threaded insertion pipe when the nut rotates anticlockwise.

Preferably, the top end face of the heat preservation layer is spliced with two groups of connecting wires, and the connecting wires are electrically connected with the heating layer through a circuit.

Preferably, the positioning nut is fixedly arranged, and the positioning insertion tube can rotate under the action of acting force at the position of the positioning nut when rotating.

Preferably, the inner wall of the spray pipe is provided with a thread layer matched with the external thread insertion pipe at the position of the top end port.

Preferably, the type of the power supply connected with the heating coil is twelve volts direct current, and the maximum heating temperature of the heating coil is eighty degrees.

Compared with the prior art, the utility model provides a shrinkage cable accessories shower nozzle of moulding plastics possesses following beneficial effect:

the zone of heating has been used, the zone of heating cup joints in the annular surface of spray tube at the in-process of assembly, it is when using, the wiring is pegged graft to the heat preservation that sets up through the outside, can heat the spray tube through built-in resistance in use, such setting, can be before the use on the one hand, preheat the shower nozzle of moulding plastics, can avoid in the pipeline residue because of the problem that causes the in-process of the ejection of compact to cause the material yield to descend after solidifying, on the other hand, this heating ring adopts direct current low-voltage power supply, can stop the potential safety hazard of electrocuting that appears when using, it is safe high-efficient more.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

FIG. 1 is a schematic view of an overall structure of an injection molding nozzle for cold-shrinkage cable accessories according to the present invention;

FIG. 2 is a schematic view of a dispersing member of the injection molding nozzle for cold-shrinkage cable accessories according to the present invention;

FIG. 3 is a schematic structural view of a heating ring in the injection molding nozzle for cold-shrinkage cable accessories of the present invention;

in the figure: 1. a nozzle; 2. a nut; 3. an external thread insertion pipe; 4. heating a ring; 5. positioning a nut; 6. positioning the cannula; 7. a nozzle; 41. a heat-insulating layer; 42. a heating layer; 43. and (6) wiring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a cold contraction cable accessory injection molding spray head comprises a spray pipe 7 and an external thread insertion pipe 3, the top end port of the spray pipe 7 is fixedly connected with the external thread insertion pipe 3 through mutual meshing between threads, a thread layer matched with the external thread insertion pipe 3 is arranged on the position, located at the top end port, of the inner wall of the spray pipe 7, the top end port of the external thread insertion pipe 3 is fixedly connected to the bottom end port of a nozzle 1 through welding, a nut 2 is arranged on the position, close to the bottom end, of the annular outer surface of the nozzle 1, the inner wall of the nut 2 is fixed with the outer wall of the nozzle 1 through welding, the external thread insertion pipe 3 can rotate relative to the spray pipe 7 through applying force to the nut 2, the external thread insertion pipe 3 is gradually sleeved into the spray pipe 7 when the nut 2 rotates clockwise, the external thread insertion pipe 3 is gradually, the nozzle 1 and the externally threaded cannula 3 connected thereto are correspondingly plugged or stripped according to the specific purpose of use.

The utility model provides a shrinkage cable accessories shower nozzle of moulding plastics, the welding that is located bottom edge including the vertical annular surface of spray tube 7 has set nut 5, and set nut 5 cup joints spray tube 7, and the bottom port of spray tube 7 is connected with location intubate 6 through welded fastening, and set nut 5 is fixed setting, and location intubate 6 needs the effort to rotate in 5 prescriptions of set nut when rotating, and such setting can in use carry out corresponding location fixed to spray tube 7.

A cold contraction cable accessory injection molding spray head comprises a heating ring 4 arranged on the upper side of a vertical annular outer surface of a spray pipe 7 and located on a positioning nut 5, a power supply type of the heating ring 4 is direct current twelve volts, the highest heating temperature of the heating ring 4 is eighty degrees, the heating ring 4 is sleeved on the outer surface of the spray pipe 7, the heating ring 4 comprises a heat insulation layer 41, a heating layer 42 and wiring 43, the annular outer surface of the spray pipe 7 is provided with the heating layer 42 in an attached mode, the outer surface of the heating layer 42 is connected with the heat insulation layer 41 in a welding mode, the top end of the heat insulation layer 41 is respectively connected with the wiring 43 in an inserted mode in a mode close to the edges of two ends in a welding mode, two groups of wiring 43 are connected in an inserted mode in the end face of the top end of the heat insulation layer 41, the wiring 43 is electrically connected with the heating layer 42 through a circuit, and the, and the heating ring 4 is powered by direct current low voltage, so that the potential safety hazard of electric shock during use can be avoided.

The utility model discloses a theory of operation and use flow: when the injection nozzle is required to be used, the nozzle 1 and the external thread insertion pipe 3 connected with the nozzle are inserted and fixed at the top end position of the spray pipe 7 through clockwise rotation of the nut 2, after the insertion is finished, the positioning insertion pipe 6 connected with the spray pipe 7 is inserted and fixed at an injection molding pipeline through clockwise rotation of the positioning nut 5, after the insertion, the corresponding sealing performance is tested, the injection nozzle can be used, when the injection nozzle is used, the heating ring 4 is newly arranged, when the heating ring 4 is used, the heating ring 4 comprises three components of a heat insulation layer 41, a heating layer 42 and a wiring 43, wherein the heating layer 42 is used, the heating layer 42 is sleeved on the annular outer surface of the spray pipe 7 in the assembling process, when the injection nozzle is used, the wiring 43 is inserted and connected through the heat insulation layer 41 arranged on the outer side, the spray pipe 7 can be heated through a built-in resistor in the use, and on one hand, the injection, the problem that the yield of the materials is reduced due to the fact that residues in the pipeline are solidified to cause discharging is solved, and on the other hand, the heating ring 4 is powered by direct current low voltage, so that electric shock potential safety hazards can be avoided when the heating ring is used.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cold contraction cable accessories shower nozzle of moulding plastics, includes spray tube (7) and external screw thread intubate (3), its characterized in that: the spray pipe is characterized in that the top end port of the spray pipe (7) is fixedly connected with an external thread insertion pipe (3) through mutual engagement between threads, the top end port of the external thread insertion pipe (3) is fixedly connected with the bottom end port of the nozzle (1) through welding, the annular outer surface of the nozzle (1) is provided with a nut (2) at a position close to the bottom end, the inner wall of the nut (2) is fixed with the outer wall of the nozzle (1) through welding, the vertical annular outer surface of the spray pipe (7) is welded with a positioning nut (5) at the bottom end edge, the positioning nut (5) is sleeved with the spray pipe (7), the bottom end port of the spray pipe (7) is fixedly connected with a positioning insertion pipe (6) through welding, the vertical annular outer surface of the spray pipe (7) is provided with a heating ring (4) at the upper side of the positioning nut (5), heating collar (4) are including heat preservation (41), zone of heating (42) and wiring (43), the annular surface department of spray tube (7) pastes mutually and is provided with zone of heating (42), the surface of zone of heating (42) has heat preservation (41) through welded connection, the top of heat preservation (41) is being close to both ends edge welding and is pegging graft respectively and have wiring (43).

2. The injection molding nozzle for cold-shrink cable accessories as claimed in claim 1, wherein: the top end of the nozzle (1) is in a penetrating arrangement.

3. The injection molding nozzle for cold-shrink cable accessories as claimed in claim 1, wherein: the external thread inserting pipe (3) can rotate relative to the spraying pipe (7) by exerting force on the nut (2), the external thread inserting pipe (3) is gradually sleeved in the spraying pipe (7) when the nut (2) rotates clockwise, and the external thread inserting pipe (3) is gradually separated from the spraying pipe (7) to be sleeved when the nut (2) rotates anticlockwise.

4. The injection molding nozzle for cold-shrink cable accessories as claimed in claim 1, wherein: two groups of wiring (43) are spliced on the end face of the top end of the heat-insulating layer (41), and the wiring (43) is electrically connected with the heating layer (42) through a circuit.

5. The injection molding nozzle for cold-shrink cable accessories as claimed in claim 1, wherein: the positioning nut (5) is fixedly arranged, and the positioning insertion tube (6) can rotate in the positioning nut (5) under the action of force when rotating.

6. The injection molding nozzle for cold-shrink cable accessories as claimed in claim 1, wherein: the inner wall of the spray pipe (7) is provided with a thread layer matched with the external thread insertion pipe (3) at the position of the port at the top end.

7. The injection molding nozzle for cold-shrink cable accessories as claimed in claim 1, wherein: the type of a power supply connected with the heating ring (4) is direct current twelve volts, and the maximum heating temperature of the heating ring (4) is eighty degrees.