Injection molding structure for injection molding of cable sheath

Abstract

The utility model discloses an injection molding structure for injection molding of a cable sheath, which comprises an injection molding cylinder, a cable through hole penetrating through two end faces of the injection molding cylinder is arranged in the middle of the injection molding cylinder, a glue placing inner cavity is arranged in the injection molding cylinder, and the glue placing inner cavity is communicated with a glue inlet pipe positioned on the upper end face of the injection molding cylinder; and a plurality of groups of glue injection devices are embedded in the inner wall of the cable through hole, and the glue in the glue placement inner cavity is uniformly smeared on the sheath of the cable passing through the cable through hole through the combination of the plurality of groups of glue injection devices. According to the device, when a cable moves in a cable through hole, a ball on the inner wall of the cable is driven to rotate, and glue in an injection molding barrel is smeared on the outer skin of the cable while the ball rotates; and meanwhile, through smearing of the multiple sets of balls arranged in a staggered mode, uniform smearing of the cable outer skin can be achieved, the glue injection molding thickness of the cable outer skin is consistent, and the injection molding quality of the cable outer skin is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable injection mould technical field, concretely relates to injection structure for cable sheath injection. BACKGROUND

[0002] The cable is often composed of a sheath insulating wrapping layer and a plurality of cables arranged inside the wrapping layer, and the current cable injection mold can only wrap a layer of sheath on the cable, so that the cable line surface wrapped with only one layer of sheath has burrs and is not smooth enough, and the anti-aging effect is not good enough, and at the same time, the high-temperature molten plastic in the injection process will heat the cable, causing the temperature to be too high and the cable inside the line to be deformed by heat, thereby affecting the quality of the cable. Patent No. CN214645422U, named injection mold for cable sheath forming, uses annular injection runner to inject glue on cable sheath, mainly realizes injection molding through the viscosity and gravity of glue, which is prone to uneven glue thickness during injection molding, affecting the injection molding effect. SUMMARY

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide an injection structure for cable sheath injection.

[0004] According to the technical scheme provided by the embodiment of the present application, the injection structure for cable sheath injection comprises an injection cylinder, a cable through hole is provided in the middle part of the injection cylinder and penetrates the two end faces, a glue placing inner cavity is provided in the injection cylinder, and the glue placing inner cavity is communicated with the glue inlet pipe located on the upper end face of the injection cylinder; a plurality of glue injection devices are embedded on the inner wall of the cable through hole, and the combination of the plurality of glue injection devices uniformly applies the glue in the glue placing inner cavity to the cable sheath passing through the cable through hole.

[0005] Further, the glue injection device is composed of a plurality of balls arranged in a circle, and the balls on the plurality of glue injection devices are embedded on the inner wall of the cable through hole in a staggered manner, so that the plurality of balls can uniformly contact the cable sheath.

[0006] Further, one end of the ball is placed in the glue placing inner cavity, and the other end is placed in the cable through hole, so that when the ball rolls, the glue in the glue placing inner cavity is transported to the cable through hole.

[0007] Further, the glue inlet pipe protrudes from the upper end face of the injection cylinder, and the glue inlet pipe is made of PVC transparent material, which is convenient for observing the use of liquid glue.

[0008] Further, a heat preservation shell is sleeved on the outer end face of one side end of the injection cylinder to prevent the glue from solidifying.

[0009] Further, a cooling shell is arranged on the outer end face of the other side end of the injection cylinder to prevent the glue from flowing due to its own gravity and affecting the glue thickness.

[0010] In summary, the beneficial effects of the present application: the device of the present application utilizes the cable to move in the cable through hole, drives the ball of the inner wall of the cable to rotate, the ball rotates at the same time the glue in the injection cylinder is smeared on the cable sheath; at the same time, through the multiple groups of staggered placement of the ball smearing, the uniform smearing of the cable sheath can be realized, so that the glue injection thickness of the cable sheath is consistent, and the injection quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 It is a schematic diagram of the overall device of the utility model;

[0013] Figure 2 It is a schematic diagram of the overall device of the utility model;

[0014] The figure mark: injection cylinder-1; glue placement inner cavity-11; glue inlet pipe-12; cable through hole-2; glue injection device-3; ball-31. DETAILED DESCRIPTION

[0015] The present application will be further described in detail below with reference to the drawings and examples. It can be understood that the specific examples described herein are only used to explain the related application, and not to limit the application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the application are shown in the drawings.

[0016] It should be noted that the examples in the present application and the features in the examples can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and examples.

[0017] The injection structure for cable sheath injection, as shown in Figure 1 and Figure 2 The middle part of the horizontally placed injection cylinder 1 is provided with a cable through hole 2 penetrating the left end face and the right end face, the upper end face of the injection cylinder 1 is provided with a vertical glue inlet pipe 12, the injection cylinder 1 is provided with a glue placement inner cavity 11, the glue placement inner cavity 11 is communicated with the glue inlet pipe 12, and the glue placement inner cavity 11 is communicated with the cable through hole 2 through multiple glue injection devices 3, the glue injection device 3 is composed of a circular ball 31, and the ball 31 is embedded in the inner wall of the cable through hole 2, the ball 31 can roll relative to the inner wall of the cable through hole 2, and the balls 31 on the multiple glue injection devices 3 are alternately placed, which can realize uniform contact with the four peripheral end faces of the cable passing through the cable through hole 2.

[0018] Before use, the solution of glue is injected into the glue placement cavity 11 through the glue inlet pipe 12, and then the cable to be coated is passed through the cable through hole 2, ensuring that the outer sheath of the cable can contact the ball 31 on the glue injection device 3,

[0019] Then the cable sheath contacts the ball 31, and the cable sheath and the ball 31 have a friction force, which drives the ball 31 to rotate. In the rolling process of the ball 31, the glue in the glue placement cavity 11 can be coated on the cable sheath. Since the balls 31 on the multiple sets of glue injection devices 3 are staggered, the outer end surface of the cable sheath can contact the ball 31 under the combination of the multiple sets of glue injection devices 3, so that the ball 31 can coat the glue on the cable sheath,

[0020] During the coating process, as long as the center line of the cable and the center line of the cable through hole 2 are located on the same straight line, the glue coating thickness of the cable sheath will be consistent, and the work efficiency is very high.

[0021] Since the glue inlet pipe 12 is made of transparent material, when the liquid level of the glue is found to be lowered, liquid glue is immediately added to prevent the occurrence of poor coating quality due to the lack of timely addition of glue.

[0022] Since the glue is prone to solidification at low temperature, a heat preservation shell can be arranged on the outer end surface of the injection cylinder 1 outside the glue injection device 3, and a cooling shell can be arranged on the outer end surface of the injection cylinder 1 for the cable with successful glue injection, to prevent the glue from falling off and affecting the coating quality.

[0023] The above description is only the preferred embodiment of the application and the explanation of the technical principle and scheme used. Meanwhile, the scope of the invention involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solution formed by the mutual replacement of the above features and the technical features disclosed in the present application (but not limited to) with similar functions.

Claims

1. An injection molding structure for cable jacket injection molding, characterized by: The utility model relates to a kind of injection molding barrel and its injection molding barrel, including, Injection molding barrel (1), the middle part of the injection molding barrel (1) is provided with cable through hole (2) through both end faces, glue placement inner cavity (11) is equipped in the injection molding barrel (1), and glue placement inner cavity (11) is communicated with the glue inlet pipe (12) on the upper end face of the injection molding barrel (1); The inner wall of the cable through hole (2) is embedded with multiple groups of glue injection device (3), and the combination of multiple groups of glue injection device (3) evenly applies glue in glue placement inner cavity (11) to the cable sheath that passes through the cable through hole (2).

2. The injection molding structure for cable sheathing injection molding according to claim 1, characterized in that: The glue injection device (3) is composed of a plurality of round-shaped rolling balls (31), and the rolling balls (31) of multiple groups of glue injection device (3) are staggered embedded on the inner wall of the cable through hole (2).

3. The injection molding structure for cable sheathing injection molding according to claim 2, characterized in that: One end of the rolling ball (31) is placed in the glue placement inner cavity (11), and the other end is placed in the cable through hole (2).

4. The injection molding structure for cable sheathing injection molding according to claim 1, characterized in that: The glue inlet pipe (12) protrudes from the upper end face of the injection molding barrel (1), and the glue inlet pipe (12) is made of PVC transparent material.

5. The injection molding structure for cable sheathing injection molding of claim 1, wherein: A heat preservation shell is sleeved on the outer end face of one side end of the injection molding barrel (1) to prevent glue from solidifying.

6. The injection molding structure for cable sheathing injection molding according to claim 5, characterized in that: A cooling shell is arranged on the outer end face of the other side end of the injection molding barrel (1).

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