Cable wire tri-chromatic processing machine head

Abstract

The utility model discloses a cable line three primary color processing machine head relates to cable processing field, including the machine head body, is set up in the machine head body and is opened to the plastic material flow channel, and the plastic material flow channel includes the arc distribution flow channel of setting in the machine head body rear section, and the angle of distribution flow channel is one hundred and twenty degrees, and the machine head body front section is opened to the arc even distribution flow channel, and the angle of even distribution flow channel is two hundred and forty degrees, and distribution flow channel and even distribution flow channel are connected through the axial flow channel, and the machine head body is opened to three circumferential even distribution's discharge seam, and the middle distribution flow channel is set to injection point. Advantageous effects lie in: through the optimization design of flow channel structure, the material flow path is shortened significantly, and the pressure fluctuation is reduced, and the stability and uniformity of plastic in the extrusion process are ensured, can realize three primary color cable sheath color even distribution effect, and the appearance size is consistent, and the appearance quality and functionality of product are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of cable processing, and in particular to a cable three-color processing head. Background Technology

[0002] The three-color design of cables clearly distinguishes their function and purpose, which is especially important in complex wiring environments. Color coding allows installers and maintenance personnel to quickly identify the cable type and application, reducing operational errors and improving efficiency. Furthermore, color coding significantly enhances safety, particularly in high-density wiring or complex electrical systems, preventing safety hazards caused by misoperation. In the building and decoration industries, three-color cables are not only functional but also aesthetically pleasing.

[0003] For example, patent document CN103887020B discloses a three-color cable processing machine head, including a machine head body with a cylindrical cavity inside; a core rod inside the cavity; a core mold connected to the right end of the core rod, with a core hole inside the core rod; a metal wire passing through the core hole; a tightening cap connected to the left end of the machine head body; a main feed port in the middle of the machine head body; a color-separating ring on a step; a groove on the side of the color-separating ring, with several auxiliary material holes leading to one end face of the color-separating ring inside the groove; a die on the right side of the color-separating ring; the left end of the die abutting against the right end face of the color-separating ring, with a tightening nut fitted on the die; the tightening nut connected to the right end of the machine head body, with the inner wall of the tightening nut pressing against the outer wall of the die; and a conical auxiliary feed port on the outer side of the machine head body. This invention allows users to quickly switch between two-color and three-color cable sheath production as needed, improving work efficiency, and reducing production costs by using only one color-separating ring.

[0004] In the existing technology, the three-color device has problems such as long flow channel, large material pressure fluctuation, uneven color distribution and complex structure, resulting in low production efficiency and high cost. Utility Model Content

[0005] The purpose of this invention is to provide a cable three-color processing head to solve the above problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A three-color cable processing head includes a head body with a plastic material flow channel inside. The plastic material flow channel includes an arc-shaped material distribution channel located at the rear of the head body with an angle of 120 degrees, and an arc-shaped equal distribution channel located at the front of the head body with an angle of 240 degrees. The material distribution channel and the equal distribution channel are connected by an axial flow channel. The head body has three circumferentially evenly arranged discharge slots, and the middle of the material distribution channel is set as an injection point.

[0008] Preferably, the cross-section of the plastic material flow channel is set to be circular.

[0009] Preferably, the machine head body includes a rear ring, a front ring is connected to the front side of the rear ring via a connecting member, an outer shell is fixedly connected to the outer side of the rear ring and the front ring, and an injection tube is fixedly connected to the outer side of the outer shell, with the injection tube aligned with the injection point.

[0010] Preferably, the material distribution channel is set on the rear ring, the radially divided channel is set on the rear ring and the front ring respectively, the discharge slot is set on the rear ring and the front ring respectively, and the remaining part of the plastic material channel is set on the outer shell.

[0011] Preferably, the connecting component includes three hexagon socket head cap screws, the front ring has three countersunk through holes, the hexagon socket head cap screws are set in the countersunk through holes on the front ring, and the rear ring has three threaded holes, the hexagon socket head cap screws are threaded into the threaded holes.

[0012] Preferably, a heat-resistant sealing gasket is provided between the front ring and the rear ring.

[0013] The beneficial effects are as follows: through the optimized design of the flow channel structure, the material flow path is significantly shortened, pressure fluctuations are reduced, and the stability and uniformity of the plastic during the extrusion process are ensured. It can achieve the effect of uniform color division of the three-color cable sheath, consistent appearance and size, and greatly improve the appearance quality and functionality of the product. In addition, through functional block design and standardized design, the manufacturing, maintenance and extrusion costs are greatly reduced.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of a cable three-color processing machine head according to the present invention;

[0017] Figure 2 This is a right-side sectional view of the cable three-color processing machine head described in this utility model;

[0018] Figure 3 This is a three-dimensional view of the plastic material flow channel structure of the cable three-color processing machine head described in this utility model;

[0019] Figure 4This is a three-dimensional structural view of the rear ring of a cable three-color processing machine head according to the present invention;

[0020] Figure 5 This is a three-dimensional structural view of the front ring of the cable three-color processing machine head described in this utility model;

[0021] Figure 6 This is a three-dimensional view of the outer ring shell of the cable three-color processing machine head described in this utility model;

[0022] Figure 7 This is a plan view of the plastic material flow channel of a cable three-color processing machine head according to the present invention.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Machine head body; 101. Outer ring shell; 102. Rear ring; 103. Front ring; 104. Injection tube; 2. Plastic material flow channel; 201. Material distribution channel; 202. Even distribution channel; 203. Discharge slot; 3. Connecting components; 301. Socket head bolt; 302. Threaded hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figures 1-7 As shown, a cable three-color processing head includes a head body 1, a plastic material flow channel 2 inside the head body 1, and an arc-shaped material distribution channel 201 located at the rear of the head body 1 with an angle of 120 degrees. An arc-shaped equal distribution channel 202 located at the front of the head body 1 with an angle of 240 degrees is also provided. The material distribution channel 201 and the equal distribution channel 202 are connected by an axial flow channel. Three circumferentially evenly arranged discharge slots 203 are provided on the head body 1, and the middle of the material distribution channel 201 is set as an injection point. Figure 7(Point A) When in use, the plastic material flow channel 2 is optimized and simplified into a convex shape. The plastic material is injected into the plastic material flow channel 2 at the midpoint of the distribution flow channel 201. Then, according to the fluid dynamics principle of the plastic material, the plastic material can flow into the distribution flow channel 202 evenly and stably, and then cover the cable sheath through the discharge slot 203.

[0029] The cross-section of the plastic material flow channel 2 is set to be circular. The circular flow channel setting avoids dead corners in the flow of plastic material and reduces pressure fluctuations during flow.

[0030] The machine head body 1 includes a rear ring 102. A front ring 103 is connected to the front side of the rear ring 102 via a connecting member 3. An outer ring shell 101 is bolted to the outer side of the rear ring 102 and the front ring 103. An injection tube 104 is fixedly connected to the outer side of the outer ring shell 101. The injection tube 104 is aligned with the injection point. By dividing the machine head body 1 into functional blocks, the manufacturing difficulty of the device is greatly reduced, and parts can be quickly replaced when damaged.

[0031] The material distribution channel 201 is set on the rear ring 102. The equal distribution channel 202 is radially divided into two parts and set on the rear ring 102 and the front ring 103 respectively. The discharge slot 203 is radially divided into two parts and set on the rear ring 102 and the front ring 103 respectively. The remaining part of the plastic material channel 2 is set on the outer shell 101. By dividing and setting the plastic material channel 2 on different modules, it is beneficial to process the material distribution channel 201, the equal distribution channel 202, and the discharge slot 203.

[0032] The connecting component 3 includes three hexagon socket head cap screws 301. The front ring 103 has three countersunk through holes, and the hexagon socket head cap screws 301 are installed in the countersunk through holes on the front ring 103. The rear ring 102 has three threaded holes 302, and the hexagon socket head cap screws 301 are threadedly connected to the threaded holes 302. The connecting component 3 can tightly connect the front ring 103 and the rear ring 102 together.

[0033] A heat-resistant sealing gasket is provided between the front ring 103 and the rear ring 102. The heat-resistant sealing gasket can improve the sealing performance between the rear ring 102 and the front ring 103 and prevent plastic leakage.

[0034] like Figure 7 As shown in the diagram, point A is the plastic injection point. After injection, the plastic flows to both sides along the distribution channel 201, then enters the equalization channel 202 where it is further divided, flowing to different outlet slots 203, and finally covering the cable sheath from the outlet slots 203.

[0035] Working principle: When manufacturing this device, each module is made separately, thereby reducing manufacturing difficulty. When installing this device, first align the rear ring 102 and the front ring 103, and use the connecting component 3 to fasten them together. Next, put the outer shell 101 on the outside of the rear ring 102 and the front ring 103 and fasten it with bolts. Finally, install this device at the end of the extruder. When in use, the molten plastic material enters the device through the injection tube 104 under the action of the extruder. Thus, the plastic material can be injected into the plastic material flow channel 2 from the midpoint of the distribution channel 201. Then, according to the fluid dynamics principle of plastic material, the plastic material can flow evenly and stably into the equal distribution channel 202, and then cover the cable sheath through the discharge slot 203. In this way, the effect of uniform color distribution of the three-color cable sheath can be achieved, with consistent appearance and size, which greatly improves the appearance quality and functionality of the product.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A cable three-color processing head, comprising a head body (1), wherein a plastic material flow channel (2) is provided inside the head body (1), characterized in that: The plastic material flow channel (2) includes an arc-shaped material distribution channel (201) located at the rear of the machine head body (1), the angle of the material distribution channel (201) being 120 degrees. An arc-shaped equal distribution channel (202) is provided at the front of the machine head body (1), the angle of the equal distribution channel (202) being 240 degrees. The material distribution channel (201) and the equal distribution channel (202) are connected by an axial flow channel. Three circumferentially evenly arranged discharge slots (203) are provided on the machine head body (1). The middle of the material distribution channel (201) is set as an injection point.

2. The cable three-color processing head according to claim 1, characterized in that: The cross-section of the plastic material flow channel (2) is set to be circular.

3. The cable three-color processing head according to claim 1, characterized in that: The machine head body (1) includes a rear ring (102), and a front ring (103) is connected to the front side of the rear ring (102) via a connecting member (3). An outer ring shell (101) is fixedly connected to the outer side of the rear ring (102) and the front ring (103). An injection tube (104) is fixedly connected to the outer side of the outer ring shell (101), and the injection tube (104) is aligned with the injection point.

4. The cable three-color processing head according to claim 3, characterized in that: The material distribution channel (201) is disposed on the rear ring (102), the equal distribution channel (202) is radially divided into two and disposed on the rear ring (102) and the front ring (103) respectively, the material outlet (203) is radially divided into two and disposed on the rear ring (102) and the front ring (103) respectively, and the remaining part of the plastic material channel (2) is disposed on the outer shell (101).

5. A cable three-color processing head according to claim 3, characterized in that: The connecting component (3) includes three hexagon socket head cap screws (301). The front ring (103) is provided with three countersunk through holes. The hexagon socket head cap screws (301) are disposed in the countersunk through holes on the front ring (103). The rear ring (102) is provided with three threaded holes (302). The hexagon socket head cap screws (301) are threadedly connected to the threaded holes (302).

6. A cable three-color processing head according to claim 3, characterized in that: A heat-resistant sealing gasket is provided between the front ring (103) and the rear ring (102).

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