CN222201456U

CN222201456U - A trapezoidal shell injection mold

Info

Publication number: CN222201456U
Application number: CN202420202220.1U
Authority: CN
Inventors: 尤剑松; 尤建勋
Original assignee: Ningbo Meiding Molding Co ltd
Current assignee: Ningbo Meiding Molding Co ltd
Priority date: 2024-01-26
Filing date: 2024-01-26
Publication date: 2024-12-20
Anticipated expiration: 2034-01-26

Abstract

The utility model relates to a trapezoid shell injection mold which comprises an upper mold base, an upper mold plate, a lower mold plate and a lower mold base which are sequentially connected, wherein the upper mold plate is arranged at the bottom of the upper mold base, the lower mold plate is arranged at the top of the lower mold base, the trapezoid shell injection mold also comprises a mold core arranged in the lower mold plate, the cross section of the mold core is trapezoid, an included angle between two long sides of the mold core and the lower mold base is larger than 90 degrees, the lower mold plate is provided with a first through hole for placing the mold core, the shape of the first through hole is matched with the outline of the mold core, a plurality of grooves are arranged on two long sides of the mold core at intervals, and a plurality of convex strips matched with the grooves are arranged on the inner wall of the first through hole. The utility model sets up a plurality of convex strips through the inner wall of the upper template, the outside of the mould core sets up a plurality of grooves that match with convex strips on the upper template. On the one hand, the cooperation of sand grip and recess can fix a position the die core.

Description

Trapezoidal shell injection mold

Technical Field

The utility model relates to the technical field of molds, in particular to a trapezoid shell injection mold.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and is cooled and solidified to obtain the molding. The method has the advantages of high production speed, high efficiency, accurate size and the like, and is suitable for the processing fields of mass production, products with complex shapes and the like. When the existing plastic shell product is subjected to injection molding technology, the mold core is easy to move, so that the wall thickness of the molded product is uneven, and the use is affected.

Disclosure of utility model

In view of the above, it is necessary to provide a battery case injection mold that is less likely to move during injection molding of a core and that can be positioned more accurately.

The utility model discloses a trapezoid shell injection mold which comprises an upper mold base, an upper mold plate, a lower mold plate and a lower mold base which are sequentially connected, wherein the upper mold plate is arranged at the bottom of the upper mold base, the lower mold plate is arranged at the top of the lower mold base, the trapezoid shell injection mold also comprises a mold core arranged in the lower mold plate, the cross section of the mold core is trapezoid, an included angle between two long sides of the mold core and the lower mold base is larger than 90 degrees, the lower mold plate is provided with a first through hole for placing the mold core, the shape of the first through hole is matched with the outline of the mold core, the two long sides of the mold core are provided with a plurality of grooves which are arranged at intervals, and the inner wall of the first through hole is provided with a plurality of convex strips which are matched with the grooves.

In one embodiment, a splitter plate is arranged between the mold core and the upper mold plate, a plurality of second through holes are formed in the splitter plate, the top of the splitter plate is connected with the upper mold plate, and the bottom of the splitter plate is in contact with the mold core.

In one embodiment, the bottom of the upper template is provided with a containing groove for placing the splitter plate.

In one embodiment, a material channel is arranged at the top end of the upper template, and the material channel is communicated with the containing groove.

In one embodiment, the upper die holder is provided with a gate, and the gate is arranged above the material channel.

In one embodiment, the gate is funnel-shaped.

In one embodiment, the upper die holder, the upper die plate, the lower die plate and the lower die holder are provided with connecting holes which are sequentially communicated.

And injecting the heated and melted plastic into a die cavity by an injection molding machine under high pressure, enabling the heated and melted plastic to flow through a material channel, and enabling the heated and melted plastic to flow through a flow dividing plate until the heated and melted plastic reaches the die core, and cooling and solidifying the heated and melted plastic to obtain a formed product. The utility model sets up a plurality of convex strips through the inner wall of the upper template, the outside of the mould core sets up a plurality of grooves that match with convex strips on the upper template. On one hand, the matching of the convex strips and the grooves can position the mold cores, so that the mold cores are prevented from moving when heated and melted plastics flow through the surfaces of the mold cores, the situation of different thickness is avoided, and on the other hand, the mold cores are arranged in a trapezoid shape, and the mold cores can be prevented from moving during pouring.

Drawings

FIG. 1 is an exploded view of the structure of the present utility model;

FIG. 2 is a schematic view of the upper mold plate of the present utility model;

FIG. 3 is a schematic view of the lower die plate of the present utility model;

In the figure, 1, an upper die holder, 2, an upper die plate, 3, a lower die plate, 4, a lower die holder, 5, a die core, 6, a first through hole, 7, a groove, 8, a convex strip, 9, a splitter plate, 10, a second through hole, 11, a containing groove, 12, a material channel, 13 and a gate.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

It will be understood that when an element is referred to as being "mounted" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 3, this embodiment discloses a trapezoid housing injection mold, including upper die base 1, cope match-plate pattern 2, lower bolster 3 and die holder 4 that connect gradually, cope match-plate pattern 2 set up in the bottom of upper die base 1, lower bolster 3 set up in the top of die holder 4, still including set up in mold core 5 in the lower bolster 3, the transversal trapezoid of personally submitting of mold core 5, contained angle between two long sides of mold core 5 and die holder 4 is greater than 90, lower bolster 3 is equipped with the confession the first through-hole 6 that mold core 5 placed, the shape of first through-hole 6 and the outline assorted of mold core 5, two long sides of mold core 5 are equipped with the recess 7 that a plurality of intervals set up, the inner wall of first through-hole 6 be equipped with a plurality of with the sand grip 8 of recess 7 looks adaptation.

In this embodiment, a splitter plate 9 is disposed between the mold core 5 and the upper mold plate 2, a plurality of second through holes 10 are disposed on the splitter plate 9, the top of the splitter plate 9 is connected with the upper mold plate 2, and the bottom of the splitter plate 9 is in contact with the mold core 5. The heated and melted plastic flows through the flow dividing plate 9 through the material channel 12 for dividing, and can uniformly flow to the gap between the mold core 5 and the upper mold plate 2 along a plurality of second through holes 10 arranged on the flow dividing plate 9, so that the wall thickness of the molded product can be uniform.

In this embodiment, a receiving groove 11 is provided at the bottom of the upper template 2 for placing the splitter plate 9. The top of the upper template 2 is provided with a material channel 12, and the material channel 12 is communicated with the accommodating groove 11. The melted plastics are dispersed to the flow dividing plate 9 arranged in the accommodating groove 11 through the material channel 12, and the flow dividing of the flow dividing plate 9 can lead the wall thickness of the formed product to be uniform.

In this embodiment, the upper die holder 4 is provided with a funnel-shaped gate 13, and the gate 13 is disposed above the material channel 12.

In this embodiment, the upper die holder 1, the upper die plate 2, the lower die plate 3 and the lower die holder 4 are provided with connecting holes which are sequentially communicated, and are connected and fixed through external connecting rods.

And the heated and melted plastic flows through the flow dividing plate through the material channel until reaching the mold core, and is cooled and solidified to obtain a formed product. The utility model sets up a plurality of convex strips through the inner wall of the upper template, the outside of the mould core sets up a plurality of grooves that match with convex strips on the upper template. On one hand, the matching of the convex strips and the grooves can position the mold cores, so that the mold cores are prevented from moving when heated and melted plastics flow through the surfaces of the mold cores, the situation of different thickness is avoided, and on the other hand, the mold cores are arranged in a trapezoid shape, and the mold cores can be prevented from moving during pouring.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be regarded as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a trapezoidal shell injection mold, includes upper die base, cope match-plate pattern, lower bolster and the die holder that connects gradually, the cope match-plate pattern set up in the bottom of upper die base, the lower bolster set up in the top of die holder, its characterized in that: the die comprises a lower die plate, and is characterized by further comprising a die core arranged in the lower die plate, wherein the cross section of the die core is trapezoid, an included angle between two long sides of the die core and the lower die base is larger than 90 degrees, the lower die plate is provided with a first through hole for placing the die core, the shape of the first through hole is matched with the outline of the die core, a plurality of grooves are formed in the two long sides of the die core at intervals, and a plurality of convex strips matched with the grooves are formed in the inner wall of the first through hole.

2. The trapezoidal shell injection mold of claim 1, wherein a splitter plate is arranged between the mold core and the upper mold plate, a plurality of second through holes are formed in the splitter plate, the top of the splitter plate is connected with the upper mold plate, and the bottom of the splitter plate is in contact with the mold core.

3. The injection mold for trapezoidal shell according to claim 2, wherein the bottom of the upper die plate is provided with a receiving groove for placing the splitter plate.

4. The injection mold for trapezoidal shell according to claim 3, wherein a material channel is arranged at the top end of the upper mold plate, and the material channel is communicated with the accommodating groove.

5. The injection mold for trapezoidal shell according to claim 4, wherein the upper mold base is provided with a gate, and the gate is arranged above the material channel.

6. The injection mold for trapezoidal housing according to claim 5, wherein said gate is funnel-shaped.

7. The trapezoidal shell injection mold of claim 1, wherein the upper mold base, the upper mold plate, the lower mold plate and the lower mold base are provided with connecting holes which are sequentially communicated.