CN211221886U

CN211221886U - Injection mold structure convenient for demolding

Info

Publication number: CN211221886U
Application number: CN201921591441.8U
Authority: CN
Inventors: 南基学
Original assignee: Dongguan Yejia Electronic Technology Co ltd
Current assignee: Dongguan Yejia Electronic Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-08-11
Anticipated expiration: 2029-09-24

Abstract

The utility model provides a make things convenient for injection mold structure of drawing of patterns, including last module, lower module, it includes from the top down last mould roof, last mould backing plate, the last mould bottom plate that sets gradually to go up the module, lower mould group includes lower mould bottom plate, lower mould bedplate, the lower mould roof that from the bottom up set gradually, two down have a recess between the mould bedplate, be equipped with the push pedal in the recess, be connected with the picture peg in the push pedal, two terminal surfaces of picture peg are the inclined plane, and two other terminal surfaces are the arc surface, the horn hole has been seted up on the lower mould roof, the horn hole both sides all are equipped with splint, two splint are located respectively the picture peg both sides, two splint with the front side forms a round platform form cylinder behind the picture peg cooperation, round platform form cylinder one end is stretched out the horn hole outside. The utility model discloses an injection mold structure, the easy drawing of patterns of product, the drawing of patterns is efficient.

Description

Injection mold structure convenient for demolding

Technical Field

The utility model relates to the technical field of mold, concretely relates to make things convenient for injection mold structure of drawing of patterns.

Background

The injection molding product is a common daily product, and is widely applied to the fields of household products, medical equipment, building materials, sports equipment and the like due to the advantages of light weight, high strength, good durability, strong assembly and the like. In the manufacturing process of injection molding products, plastic materials in a molten state are generally uniformly stirred by a screw extruder at a certain temperature, then injected into an injection mold, molded in a cavity of the injection mold, and cooled and solidified to obtain the molded injection molding products.

In the injection mold in the prior art, an ejector pin is usually adopted to eject an injection product in a cavity, however, for a product with a groove, the suction force of the molded product is large, and the ejector pin is difficult to eject the product.

SUMMERY OF THE UTILITY MODEL

To above problem, the utility model provides a make things convenient for injection mold structure of drawing of patterns, the easy drawing of patterns of product, the drawing of patterns is efficient.

In order to achieve the above object, the present invention provides the following technical solutions:

an injection mold structure convenient for demolding comprises an upper mold set and a lower mold set, wherein the upper mold set comprises an upper mold top plate, an upper mold base plate and an upper mold bottom plate which are sequentially arranged from top to bottom, the lower die set comprises a lower die bottom plate, a lower die seat plate and a lower die top plate which are arranged from bottom to top in sequence, the number of the lower die seat plates is two, a groove is arranged between the two lower die seat plates, a push plate is arranged in the groove, an inserting plate is connected onto the push plate, two end faces of the inserting plate are inclined planes, the other two end surfaces are arc surfaces, a horn hole is arranged on the lower die top plate, clamping plates are arranged on two sides of the horn hole, one end face of each clamping plate is a plane, the other end face of each clamping plate is an arc surface, the clamping plates are respectively located on two sides of the inserting plate, the clamping plates and the inserting plate are matched, a round-table-shaped column body is formed on the front side of the rear portion of the inserting plate, and one end of the round-table-shaped column body extends out of the horn hole.

Specifically, the outer side of the clamping plate is further connected with a spring, and a yielding groove for accommodating the spring is further formed in the lower die top plate.

Specifically, the upper die base plate is close to one end of the lower die top plate and is further provided with a circular groove, and the circular-truncated-cone-shaped cylinder is matched with the circular groove to form a cavity.

Specifically, go up the mould roof middle part and be equipped with a sprue gate, the sprue gate bottom is connected with the material runner, material runner bottom with circular slot through connection.

Specifically, be equipped with the guide post on the lower mould roof, be equipped with on the last mould bottom plate with guide post assorted guiding hole.

The utility model has the advantages that:

the utility model discloses an injection mold utilizes two splint and a picture peg cooperation to form a round platform form cylinder, utilizes the end and the circular slot cooperation formation die cavity of round platform form cylinder, and during the drawing of patterns, the picture peg is pulled out to the push pedal, and two splint draw close in opposite directions under the effect of spring to make the injection moulding product in the die cavity drop, compare traditional thimble and release, the drawing of patterns more easily, drawing of patterns efficiency is higher.

Drawings

Fig. 1 is the structural schematic diagram of an injection mold structure of the utility model, which facilitates demolding.

Fig. 2 is an exploded view of the injection mold structure of the present invention, which facilitates the demolding.

Fig. 3 is a schematic structural view of the insert plate and the clamping plate in fig. 2.

Fig. 4 is an exploded view of the injection mold structure of the present invention, which facilitates the demolding.

Fig. 5 is a schematic structural view of the insert plate and the clamping plate in fig. 4.

Fig. 6 is a schematic structural view of the middle and lower mold top plate, the insert plate, the clamp plate and the spring of the present invention.

Fig. 7 is a bottom view of the middle upper module according to the present invention.

The reference signs are: the casting device comprises an upper die set 1, an upper die top plate 11, a casting opening 111, a material flow channel 112, an upper die base plate 12, an upper die bottom plate 13, a circular groove 131, a guide hole 132, a lower die set 2, a lower die bottom plate 21, a lower die base plate 22, a lower die top plate 23, guide columns 232, a push plate 31, an insert plate 32, a clamping plate 33, a relief groove 231 and a spring 34.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.

As shown in fig. 1-7:

an injection mold structure convenient for demolding comprises an upper mold set 1 and a lower mold set 2, wherein the upper mold set 1 comprises an upper mold top plate 11, an upper mold base plate 12 and an upper mold bottom plate 13 which are sequentially arranged from top to bottom, the lower mold set 2 comprises a lower mold bottom plate 21, a lower mold base plate 22 and a lower mold top plate 23 which are sequentially arranged from bottom to top, two lower mold base plates 22 are provided, a groove is arranged between the two lower mold base plates 22, a push plate 31 is arranged in the groove, an inserting plate 32 is connected onto the push plate 31, two end faces of the inserting plate 32 are inclined planes, the other two end faces are arc surfaces, a horn hole is formed in the lower mold top plate 23, two clamp plates 33 are arranged on two sides of the horn hole, one end face of each clamp plate 33 is a plane, the other end face of each clamp plate is an arc surface, the two clamp plates 33 are respectively positioned on two sides, the outer side of the clamping plate 33 is further connected with a spring 34, a yielding groove 231 for accommodating the spring 34 is further formed in the lower die top plate 23, a circular groove 131 is further formed in one end, close to the lower die top plate 23, of the upper die bottom plate 13, a circular-table-shaped cylinder and the circular groove 131 are matched to form a cavity, during demolding, the inserting plate 32 is pulled out by the push plate 31, the two clamping plates 33 are closed in opposite directions under the action of the spring 34, accordingly, injection products in the cavity are made to fall off, the ejector pin is pushed out compared with a traditional ejector pin, demolding is easier, and demolding.

Preferably, the middle part of the upper die top plate 11 is provided with a casting port 111, the casting port 111 can be connected to a discharge port of the screw extruder, the bottom of the casting port 111 is connected with a material flow channel 112, the bottom of the material flow channel 112 is in through connection with the circular groove 131, and the material extruded by the screw extruder enters the cavity through the material flow channel 112.

Preferably, the lower mold top plate 23 is provided with guide posts 232, and the upper mold bottom plate 13 is provided with guide holes 132 matched with the guide posts 232.

The above embodiments only represent one embodiment of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The injection mold structure convenient for demolding is characterized by comprising an upper mold set (1) and a lower mold set (2), wherein the upper mold set (1) comprises an upper mold top plate (11), an upper mold base plate (12) and an upper mold base plate (13) which are sequentially arranged from top to bottom, the lower mold set (2) comprises a lower mold base plate (21), a lower mold base plate (22) and a lower mold top plate (23) which are sequentially arranged from bottom to top, two lower mold base plates (22) are provided, a groove is arranged between the two lower mold base plates (22), a push plate (31) is arranged in the groove, an inserting plate (32) is connected onto the push plate (31), two end faces of the inserting plate (32) are inclined planes, the other two end faces are arc surfaces, a horn hole is formed on the lower mold top plate (23), clamping plates (33) are arranged on two sides of the horn hole, one end face of, another terminal surface is the arc surface, two splint (33) are located respectively picture peg (32) both sides, two splint (33) with picture peg (32) cooperation back front side forms a round platform form cylinder, round platform form cylinder one end is stretched out the horn hole outside.

2. An injection mold structure convenient for demolding as claimed in claim 1, wherein a spring (34) is further connected to the outer side of the clamping plate (33), and a relief groove (231) for accommodating the spring (34) is further formed in the lower mold top plate (23).

3. An injection mold structure convenient for demolding as claimed in claim 1, wherein a circular groove (131) is further formed at one end of the upper mold bottom plate (13) close to the lower mold top plate (23), and the circular truncated cone-shaped cylinder and the circular groove (131) are matched to form a cavity.

4. An injection mold structure convenient for demolding as claimed in claim 3, wherein a casting opening (111) is formed in the middle of the upper mold top plate (11), a material flow channel (112) is connected to the bottom of the casting opening (111), and the bottom of the material flow channel (112) is connected with the circular groove (131) in a penetrating manner.

5. An injection mold structure convenient for demolding as claimed in claim 1, wherein the lower mold top plate (23) is provided with guide posts (232), and the upper mold bottom plate (13) is provided with guide holes (132) matched with the guide posts (232).