CN203496229U

CN203496229U - Submarine gate of injection mold

Info

Publication number: CN203496229U
Application number: CN201320527567.5U
Authority: CN
Inventors: 茅金官
Original assignee: SHANGHAI DEKUI KUBOTA MOLD CO Ltd
Current assignee: SHANGHAI DEKUI KUBOTA MOLD CO Ltd
Priority date: 2013-08-22
Filing date: 2013-08-22
Publication date: 2014-03-26
Anticipated expiration: 2023-08-22

Abstract

The utility model relates to an injection mold and particularly relates to a submarine gate of the injection mold. The utility model provides a submarine gate of the injection mold, which is not contacted with the outer surface of a product and is provided with a process handle in the product. The submarine gate is characterized in that an injection gate is arranged on a core template; the injection gate near a core extends obliquely and downwards to form a submarine gate; part of the upper part of a rectangular top rod is cut off, and the space formed by the cut rectangular top rod is a process handle cavity; and the submarine gate is communicated with the process handle cavity which is communicated with a workpiece cavity. The included angle between the submarine gate and the template is 35-45 degrees. The distance between the tail end of the injection gate and the core is 20nm-30nm. The submarine gate provided by the utility model has the obvious characteristics and beneficial effects that no scars can be generated on the outer surface of the product, and the fracture surface of the injection gate does not need to be processed again, so that the quality of the product can be guaranteed and the production efficiency can be improved.

Description

The latent cast gate of injection mold

Technical field

The utility model relates to injection mold, especially a kind of latent cast gate of injection mold.

Background technology

Along with social development, plastic products, aluminum products that people directly or indirectly use are more and more extensive.Now in daily life or industrial various plastic products, aluminum products, major part is manufactured with injection mold.The product that injection mold is produced, indices requires very strict, and wherein product appearance is very important one.Now, the injection cast gate of injection mold is arranged on mould assembly face, and mould assembly face is the face that the mould that is provided with die cavity closes up while pulling and being provided with the template injection moulding of core, injects cast gate and directly leads to die cavity, and die cavity is exactly generally the outer surface of product.This cast form also has weak point, in injecting products production process, remove this procedure of injection cast gate essential, manually pulled, after injecting cast gate and product fracture, again the splitting traces on product is polished, position after polishing and product may be deposited difference, and such as gloss, roughness, this can affect the quality of product; If sag at the vestige of product after injecting cast gate and product fracture, even if polishing also cannot reach requirement, cause product rejection.

Utility model content

The purpose of this utility model is to overcome above-mentioned technological deficiency, a kind of not contact product outer surface is provided and at interiors of products, leave the latent cast gate of the injection mold of technique handle.

In order to realize the purpose of this utility model, the technical scheme adopting is: injection cast gate is arranged in core template, inject cast gate and be tilted to downward-extension and become latent cast gate closing on core place, rectangle push rod top machines away some, the space that rectangular top bar after cutting forms is exactly technique handle die cavity, the cast gate of diving is connected technique handle die cavity, and technique handle die cavity is connected workpiece cavity again.

Rectangle push rod be technique handle die cavity.

The angle of described latent cast gate and template is 35 °～45 °.

The distance of described injection cast gate end and core is in the scope of 20mm to 30mm.

Distinguishing feature of the present utility model and beneficial effect are to make the product external surfaces of producing without scar, inject the plane of disruption of cast gate without processing again, can guarantee the quality of product and production effect is improved.

Accompanying drawing explanation

Fig. 1 is core template schematic top plan view of the present utility model.

Fig. 2 is that core template of the present utility model and the die cavity template master while closing up looks cross-sectional schematic.

Fig. 3 is the product schematic diagram with technique handle.

In figure: 1 core template, 2 inject cast gate, 3 latent cast gates, 4 rectangle push rods, 5 cores, 6 die cavity templates, 7 workpiece cavities, 8 technique handle die cavities, 9 technique handles.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, structure of the present utility model is further illustrated.

Please refer to Fig. 1, Fig. 2 and Fig. 3, a kind of latent cast gate 3 of injection mold, injection cast gate 2 is arranged in core template 1, inject cast gates 2 and be tilted to downward-extension and become the cast gate 3 of diving closing on core 5 places, inject the too short intensity that can affect core template 1 of the end of cast gate 2 and the distance of core 5, the oversize raw material that waste is injected, be chosen in the scope of 20mm to 30mm better, when the angle of cast gate 3 and the core template 1 of diving is 35 °～45 °, the demoulding more for convenience, the cast gate 3 Wei Yuan Cone body of diving, has certain draw taper.Rectangle push rod 4 tops machine away some, and the space that the rectangle push rod 4 after cutting forms is exactly technique handle die cavity 8, and the cast gate 3 of diving is connected technique handle die cavity 8.Technique handle die cavity 8 is also the some toward the interior injection material channel of workpiece cavity 7, and during work, raw material enters and injects cast gate 2, enter the cast gate 3 of diving, enter again technique handle die cavity 8, from technique handle die cavity 8, again to whole workpiece cavity 7 diffusions, complete the injection moulding process of product.After injection moulding completes, core template 1 is separated with die cavity template 6, rectangle push rod 4 upwards cuts off the connection of dive cast gate 3 and technique handle 9, now dive cast gate 3 also by top pine, together with injecting cast gate 2, come off, the related technique handle 9 of product is removed, and then pulls technique handle 9 and enters next procedure, because disconnect scar on inwall, do not affect outward appearance matter weight.

The above, be only preferred embodiment of the present utility model, not structure of the present utility model done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of the technical solution of the utility model.

Claims

1. a latent cast gate for injection mold, is characterized in that injection cast gate (2) is arranged on to core template (1) upper, locates to inject cast gate (2) and is tilted to downward-extension and becomes latent cast gate (3) closing on core (5); Rectangle push rod (4) top machines away some, the space that rectangle push rod (4) after cutting forms is exactly technique handle die cavity (3), the cast gate (3) of diving is connected technique handle die cavity (8), and workpiece cavity (7) is connected in technique handle shape chamber (8) again.

2. the latent cast gate of injection mold according to claim 1, is characterized in that latent cast gate (3) and the angle of core template (1) are 35 °～45 °.

3. the latent cast gate of injection mold according to claim 1, is characterized in that the distance of injecting cast gate (2) end and core (5) is in the scope of 20mm to 30mm.