CN213006263U

CN213006263U - Plastic ribbon injection mold

Info

Publication number: CN213006263U
Application number: CN202020916480.7U
Authority: CN
Inventors: 周益芹
Original assignee: Xuancheng Longhua Electron Co ltd
Current assignee: Xuancheng Longhua Electron Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-04-20
Anticipated expiration: 2030-05-27

Abstract

A plastic tie injection mold comprises a lower template, wherein a plurality of lower cavities are symmetrically formed in two sides of the interior of a matching groove, and cooling runners are distributed on the outer parts of the lower cavities; the top of the lower template is assembled with an upper template, four corners of the bottom surface of the upper template are vertically provided with positioning columns, the positioning columns are inserted into the positioning holes, the bottom surface of the upper template is provided with a convex matching seat, the matching seat is embedded into the matching groove, an upper cavity is formed in the matching seat, and the upper cavity is relatively arranged at the top of the lower cavity; and machining teeth are arranged at the top of the inner part of the upper cavity. The utility model can realize that the sawtooth on the binding belt can be processed completely when the binding belt is injected by processing the teeth, thereby improving the processing efficiency without independently arranging the sawtooth in the follow-up process; on the other hand, the setting of processing tooth can increase the contact surface of die cavity and ribbon, improves the bonding strength of ribbon and cope match-plate pattern, the ribbon drawing of patterns of being convenient for.

Description

Plastic ribbon injection mold

Technical Field

The utility model belongs to the technical field of the ribbon production, in particular to plastics ribbon injection mold.

Background

The application field of the ribbon becomes increasingly wide along with the development of economy, and almost all the fields are applied, the ribbon is made of UL approved Nylon-66 (Nylon 66) materials through injection molding, the fireproof grade is 94V-2, and the ribbon has good acid resistance, corrosion resistance and insulation performance, is not easy to age and has strong bearing capacity. The operation temperature is-20 ℃ to +80 ℃ (common nylon 66);

during production of the ribbon, molten materials are injected into a mold, after the molten materials are cooled and solidified, an upper template and a lower template are separated, and the upper template drives the ribbon to demold; however, in the current mold, the bonding ability of the upper mold plate to the ribbon is not strong enough, the bonding area between the upper mold plate and the ribbon is limited, and when the mold is demolded, the ribbon can be adhered to a lower mold, the separation is not thorough, and the ribbon needs to be manually pulled out again.

SUMMERY OF THE UTILITY MODEL

The utility model discloses not enough to prior art exists provides a plastics ribbon injection mold, and concrete technical scheme is as follows:

a plastic tie injection mold comprises a lower template, wherein positioning holes are formed in four corners of the surface of the lower template, an inwards concave matching groove is formed in the middle of the surface of the lower template, a plurality of lower cavities are symmetrically formed in two sides of the inside of the matching groove, and cooling runners are distributed on the outer portion of each lower cavity;

the top of the lower template is assembled with an upper template, four corners of the bottom surface of the upper template are vertically provided with positioning columns, the positioning columns are inserted into the positioning holes, the bottom surface of the upper template is provided with a convex matching seat, the matching seat is embedded into the matching groove, an upper cavity is formed in the matching seat, and the upper cavity is relatively arranged at the top of the lower cavity; and machining teeth are arranged at the top of the inner part of the upper cavity and are used for machining sawteeth on the binding belt.

Furthermore, an outer shield cover is arranged outside the upper cavity and vertically arranged on the bottom surface of the matching seat, and the outer shield cover is embedded into the lower cavity.

Furthermore, the cooling runner comprises a main cooling groove, the main cooling groove is located at two groups of symmetrical lines of the lower cavities, a plurality of branch cooling grooves are symmetrically communicated with two sides of the main cooling groove and are arranged between the lower cavities, two ends of the main cooling groove are communicated with cooling water connectors, and the cooling water connectors are located on the outer wall of the lower template.

Furthermore, the bottom surface of the upper template is provided with a sealing plug, the distribution shape of the sealing plug is the same as that of the cooling flow channel, the sealing plug is embedded into the top of the main cooling groove and the inner top of the branch cooling groove, and the sealing plug is in an inclined surface structure with a wide upper part and a narrow lower part.

Furthermore, the surface of the upper template is provided with an injection molding joint, the center of the interior of the upper template is provided with an injection molding pipeline, the top end of the injection molding pipeline is communicated with the injection molding joint, and the outlet at the bottom end of the injection molding pipeline is communicated to each upper cavity through each branch pipeline.

The utility model has the advantages that: the processing teeth can be used for finishing processing the sawteeth on the binding belt while the binding belt is injected, so that the processing efficiency is improved, and the sawteeth do not need to be separately formed subsequently; on the other hand, the setting of processing tooth can increase the contact surface of die cavity and ribbon, improves the bonding strength of ribbon and cope match-plate pattern, the ribbon drawing of patterns of being convenient for.

Drawings

Fig. 1 shows a schematic structural view of a plastic tie injection mold of the present invention;

FIG. 2 is a schematic structural view of the cross section of the upper and lower templates of the present invention;

FIG. 3 shows an enlarged schematic view of FIG. 2 at A;

FIG. 4 is a schematic side view of the cross-sectional structure of the upper and lower templates of the present invention;

shown in the figure: 1. a lower template; 11. positioning holes; 12. a mating groove; 13. a cooling water joint; 14. a main cooling tank; 141. a branched cooling tank; 15. a lower cavity; 2. mounting a template; 21. a positioning column; 22. injection molding a joint; 23. a mating seat; 231. an upper cavity; 2311. machining teeth; 232. an outer shield; 24. injecting a pipeline; 25. a branch line; 26. and (4) sealing the plug.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A plastic tie injection mold comprises a lower template 1, wherein positioning holes 11 are formed in four corners of the surface of the lower template 1, an inwards concave matching groove 12 is formed in the middle of the surface of the lower template 1, a plurality of lower cavities 15 are symmetrically formed in two sides of the inside of the matching groove 12, and cooling flow channels are distributed outside the lower cavities 15;

the top of the lower template 1 is assembled with an upper template 2, and four corners of the bottom surface of the upper template 2 are vertically provided with positioning columns 21; the matching of the positioning columns 21 and the positioning holes 11 can enable the lower template 1 to be accurately matched with the upper template 2;

the positioning column 21 is inserted into the positioning hole 11, a convex matching seat 23 is arranged on the bottom surface of the upper template 2, and the matching seat 23 is embedded into the matching groove 12; the arrangement of the matching seat and the matching groove can improve the assembly precision and simultaneously avoid the molten material from leaking out of the template;

an upper cavity 231 is formed in the matching seat 23, and the upper cavity 231 is oppositely arranged at the top of the lower cavity 15; the top of the interior of the upper cavity 231 is provided with a processing tooth 2311, and the processing tooth 2311 is used for processing sawteeth on the binding belt; the processing of the teeth 2311 can be used for finishing processing of the sawteeth on the binding belt while the binding belt is subjected to injection molding, so that the processing efficiency is improved, and the sawteeth do not need to be independently formed subsequently; on the other hand, the setting of processing tooth 2311 can increase the contact surface of die cavity and ribbon, improves the bonding strength of ribbon and cope match-plate pattern, the ribbon drawing of patterns of being convenient for.

As an improvement of the above technical solution, an outer shield 232 is disposed outside the upper cavity 231, the outer shield 232 is vertically disposed on the bottom surface of the mating seat 23, and the outer shield 232 is embedded inside the lower cavity 15; the outer shield 232 can form a two-layer staggered barrier structure with the lower cavity, so that the molten material in the cavity is further prevented from leaking, and the stability of the molten material is ensured; meanwhile, the outer shield 232 can further increase the connecting surface of the upper template and the binding belt, so that the demolding speed is higher,

as an improvement of the above technical solution, the cooling flow channel includes a main cooling groove 14, the main cooling groove 14 is located at a symmetrical line of two groups of the lower cavities 15, two sides of the main cooling groove 14 are symmetrically communicated with a plurality of branch cooling grooves 141, the branch cooling grooves 141 are disposed between adjacent lower cavities 15, two ends of the main cooling groove 14 are both communicated with cooling water connectors 13, and the cooling water connectors 13 are located on an outer wall of the lower template 1; the main cooling groove 14 and the branch cooling groove 141 can effectively increase the covering surface of the cooling flow channel, improve the cooling effect and enable the forming effect of the ribbon to be better.

As an improvement of the above technical solution, a sealing plug 26 is arranged on the bottom surface of the upper die plate 2, the distribution shape of the sealing plug 26 is the same as that of the cooling flow channel, the sealing plug 26 is embedded in the top of the main cooling groove 14 and the branch cooling groove 141, and the sealing plug 26 is an inclined plane structure with a wide upper part and a narrow lower part; the cooling flow passage can be blocked from above by the sealing plug 26, so that the liquid in the cooling flow passage is prevented from leaking, and the circulation stability of the cooling water is improved.

As an improvement of the above technical solution, an injection joint 22 is arranged on the surface of the upper mold plate 2, an injection pipeline 24 is arranged at the center of the inside of the upper mold plate 2, the top end of the injection pipeline 24 is communicated with the injection joint 22, and the outlet at the bottom end of the injection pipeline 24 is communicated to each upper cavity 231 through each branch pipeline 25; the molten material can be rapidly dispersed and output to the upper cavity 231 through the injection joint 22 and the injection pipeline 24.

When the utility model is processed, the upper template 2 moves downwards to be assembled with the lower template 1, the positioning column 21 is inserted into the positioning hole 11, the matching seat 23 is embedded into the matching groove 12, the upper cavity 231 is aligned and matched with the lower cavity 15, the outer shield 232 is embedded into the lower cavity 15, and the sealing plug 26 is sealed on the cooling flow passage;

the injection molding machine discharges the melted materials to the injection molding joint 22, then the melted materials are discharged into the upper die cavity 231 through the injection molding pipeline 24 and the branch pipeline 25, then the melted materials enter the lower die cavity 15, the upper die cavity 231 and the lower die cavity 15 are filled with the melted materials, and the processing teeth 2311 are used for processing the sawtooth grooves on the ribbon;

after filling and injection molding are carried out for a period of time, cooling water enters the main cooling tank 14 through the cooling water connectors 13 and then is dispersed into the branch cooling tanks 141, and the molten materials can be rapidly solidified into the molding ribbon by the cooling water;

after processing finishes, cope match-plate pattern 2 upward movement, cope match-plate pattern 2 can drive the ribbon and follow upward movement, because processing tooth 2311, outer fender cover 232's setting can make the ribbon fully demold, can not by the adhesion of lower bolster 1, and after the drawing of patterns finishes, the workman directly takes off each ribbon alright.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a plastics ribbon injection mold which characterized in that: the die comprises a lower template (1), wherein positioning holes (11) are formed in four corners of the surface of the lower template (1), an inwards concave matching groove (12) is formed in the middle of the surface of the lower template (1), a plurality of lower cavities (15) are symmetrically formed in two sides of the inside of the matching groove (12), and cooling flow channels are distributed outside the lower cavities (15);

the top of the lower template (1) is assembled with an upper template (2), four corners of the bottom surface of the upper template (2) are vertically provided with positioning columns (21), the positioning columns (21) are inserted into the positioning holes (11), the bottom surface of the upper template (2) is provided with a convex matching seat (23), the matching seat (23) is embedded into the matching groove (12), an upper cavity (231) is formed in the matching seat (23), and the upper cavity (231) is relatively arranged at the top of the lower cavity (15); the top of the inner part of the upper cavity (231) is provided with processing teeth (2311), and the processing teeth (2311) are used for processing sawteeth on the binding belt.

2. A plastic tie injection mold according to claim 1, wherein: go up the outside of die cavity (231) and be equipped with outer fender cover (232), outer fender cover (232) are located perpendicularly cooperation seat (23) bottom surface, outer fender cover (232) are embedded in the inside of die cavity (15) down.

3. A plastic tie injection mold according to claim 1, wherein: the cooling runner comprises a main cooling groove (14), the main cooling groove (14) is located in two groups of symmetrical lines of the lower cavities (15), a plurality of branch cooling grooves (141) are symmetrically communicated with two sides of the main cooling groove (14), the branch cooling grooves (141) are arranged between the lower cavities (15) and are adjacent to each other, cooling water connectors (13) are communicated with two ends of the main cooling groove (14), and the cooling water connectors (13) are located on the outer wall of the lower template (1).

4. A plastic tie injection mold according to claim 3, wherein: the bottom surface of the upper template (2) is provided with a sealing plug (26), the distribution shape of the sealing plug (26) is the same as that of the cooling flow channel, the sealing plug (26) is embedded into the top of the main cooling groove (14) and the inner top of the branch cooling groove (141), and the sealing plug (26) is of an inclined surface structure with a wide upper part and a narrow lower part.

5. A plastic tie injection mold according to claim 1, wherein: the injection molding device is characterized in that an injection molding joint (22) is arranged on the surface of the upper template (2), an injection molding pipeline (24) is arranged at the center of the inner part of the upper template (2), the top end of the injection molding pipeline (24) is communicated with the injection molding joint (22), and the outlet of the bottom end of the injection molding pipeline (24) is communicated to each upper cavity (231) through each branch pipeline (25).