CN211730061U - An injection mold for easy injection of raw materials - Google Patents

Abstract

The utility model relates to an injection mold which is convenient for injecting raw materials, which comprises: a mold main body, an upper template is arranged on the top of the mold main body, a gate is arranged inside the upper template, a runner is opened inside the gate, and the inside of the runner is There are several clamping mechanisms distributed symmetrically in the center. The utility model directly uses the fixing block to clamp the injection head, which increases the stability during injection, prevents the defect of the inner space of the injection molded part, and after the injection is completed, the fixing block is directly released under the action of the ejector plate, which is more convenient Pull out of the injection head.

Description

An injection mold for easy injection of raw materials

technical field

The utility model relates to the technical field of plastic moulds, in particular to an injection mould which is convenient for injecting raw materials.

Background technique

When injection molding the lamp holder injection parts, generally, the injection head of the injection machine is directly inserted into the gate, and then the injection molding material (that is, the molten plastic) is injected, but the injection molding material will generate a large pressure during the injection process, which may lead to The injection head and the gate are loose, which in turn affects the injection of the injection material, and the injection molded parts have internal void defects.

Utility model content

The purpose of this utility model is to provide an injection mold which is convenient for injecting raw materials, which can increase the connection stability between the injection head and the gate when injecting the raw materials.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

An injection mold for injecting raw materials, comprising a mold main body, an upper template is arranged on the top of the mold main body, a gate is arranged inside the upper template, a runner is opened inside the gate, and a number of center runners are arranged inside the runner Symmetrically distributed clamping mechanism,

The clamping mechanism includes a rotating shaft fixedly connected with the gate, a surface of the rotating shaft is rotatably connected with a fixed block, a torsion spring is arranged between the fixed block and the rotating shaft, and an ejector plate is fixedly connected to the bottom of the fixed block.

Preferably, the top of the fixing block is inclined.

Preferably, the top of the fixed block is provided with several balls.

Preferably, several clamping blocks are provided on opposite surfaces of the fixing block.

Preferably, the surface of each clamping block is provided with anti-skid lines.

Preferably, a spacer block is fixedly connected to the inside of the gate close to the fixed block.

Preferably, the opposite surfaces of the ejector plate are inclined surfaces.

Preferably, the bottom of the ejector plate is provided with an ejector cavity.

Preferably, the ejector plate is a silica gel plate.

Preferably, the ejection cavity is trapezoidal.

The utility model at least has the following beneficial effects:

When the injection mold of the utility model injects raw materials, the injection head can be directly clamped by the fixed block, which increases the stability during injection, and after the injection is completed, the fixed block is directly released under the action of the ejector plate, which makes the injection more stable. Easy to pull out the injection head.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the overall structure diagram of the injection mold that is convenient for injecting raw materials in the utility model;

FIG. 2 is a side partial cross-sectional view of the injection mold for injecting raw materials in FIG. 1;

3 is a rear partial cross-sectional view of an injection mold for injecting raw materials in FIG. 1;

FIG. 4 is an enlarged view of area A in FIG. 3 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

Example 1:

Referring to FIGS. 1-4 , the injection mold for injecting raw materials in this embodiment includes: a mold main body 1 , an upper mold plate 2 is provided on the top of the mold main body 1 , specifically, the upper mold plate 2 is fixedly connected with the mold main body 1 , and the upper mold plate 2 There is a gate 3 inside, specifically, the gate 3 is fixedly connected with the upper template 2, the gate 3 is provided with a runner 4, and the inside of the gate 4 is provided with several clamping mechanisms 5 that are symmetrically distributed in the center ,

The clamping mechanism 5 includes a rotating shaft 6 that is fixedly connected to the gate 3, a fixed block 8 is rotatably connected to the surface of the rotating shaft 6, and a torsion spring 7 is arranged between the fixed block 8 and the rotating shaft 6, and the two ends of the torsion spring 7 are respectively connected to the fixed block 8. The block 8 is fixedly connected with the rotating shaft 6 , the bottom of the fixed block 8 is fixedly connected with an ejector plate 9 , and the bottom of the ejector plate 9 is provided with an ejector cavity 13 .

When injection molding the lamp holder injection part, insert the injection head of the injection machine into the gate 3 of the injection mold, and insert it into the top of the fixed block 8. When the injection head is inserted into the runner 4 inside the gate 3, the torsion spring 7 Drive the fixed block 8 to clamp the injection head, and the injection machine starts to inject the injection material (that is, the molten plastic), and after the injection material is completely filled in the mold, it then reaches the ejector plate 9, and then ejects the ejector plate 9, so that The ejector plate 9 drives the fixed block 8 to rotate under the action of the rotating shaft 6 , thereby directly releasing the injection head through the fixed block 8 to complete the injection.

Therefore, the injection mold of this embodiment directly uses the fixing block 8 to clamp the injection head, which increases the stability of the injection molding raw material, and can ensure that the injection molding material completely fills the inner wall of the mold, so as to prevent the occurrence of voids in the injection molded parts, which may affect the Product quality, and after the injection is completed, the fixing block 8 can be directly released under the action of the ejector plate 9, which is more convenient for the injection head to be pulled out.

Example 2:

The only difference between this embodiment and Embodiment 1 is that the top of the fixing block 8 is inclined and is provided with several balls 11 , so that the injection machine can be easily injected through the inclined surface and the balls 11 on the top of the fixing block 8 . The head is inserted into gate 3.

In addition, the opposite surfaces of the fixed block 8 are provided with several clamping blocks 10 for tightening the injection head, so that the injection head is separated from the gate 3 in such a way that the stability during injection is increased.

Further, the surface of each clamping block 10 is provided with anti-skid patterns to increase friction and enhance the clamping effect; and the gate 3 is fixedly connected to the interior of the fixing block 8 with a spacer 12, which is used for the fixing block 8. Protect the fixing block 8 when it is close to the inner wall of the gate 3 .

The opposite surfaces of the ejector plate 9 are inclined planes, thereby facilitating the injection head to inject the injection molding material into the interior of the mold body 1; at the same time, the ejector plate 9 is a silica gel plate, and the silica gel plate has elasticity, which is convenient for the ejection plate 9. Ejection, and the ejection cavity 13 is trapezoidal, so that the injection molded part can be easily taken out from the ejection cavity 13 after the lamp socket injection molded part is formed.

When the injection mold of the utility model injects raw materials, the injection head can be directly clamped by the fixed block, which increases the stability during injection, and after the injection is completed, the fixed block is directly released under the action of the ejector plate, which makes the injection more stable. Easy to pull out the injection head.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions describe only the principles of the present invention. There are various changes and improvements that fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. An injection mold convenient for injecting raw materials comprises a mold main body (1) and is characterized in that an upper mold plate (2) is arranged at the top of the mold main body (1), a pouring gate (3) is arranged inside the upper mold plate (2), a pouring gate (4) is arranged inside the pouring gate (3), a plurality of clamping mechanisms (5) which are distributed in a centrosymmetric manner are arranged inside the pouring gate (4),

clamping mechanism (5) include with runner (3) fixed connection's pivot (6), the surface rotation of pivot (6) is connected with fixed block (8), be equipped with torsion spring (7) between fixed block (8) and pivot (6), the bottom fixedly connected with liftout plate (9) of fixed block (8).

2. An injection mould according to claim 1, characterized in that the top of the fixing block (8) is bevelled.

3. An injection mould according to claim 1, characterized in that the top of the fixing block (8) is provided with a number of balls (11).

4. An injection mould according to claim 1, characterized in that the opposite faces of the fixed block (8) are each provided with a number of clamping blocks (10).

5. An injection mould according to claim 4, characterized in that the surface of each clamping block (10) is provided with anti-slip threads.

6. An injection mould according to claim 1, characterized in that a spacer (12) is fixedly connected to the inside of the gate (3) close to the fixed block (8).

7. An injection mould according to claim 1, characterized in that the opposite faces of the ejector plate (9) are both bevelled.

8. An injection mould according to claim 1, characterized in that the bottom of the ejector plate (9) is provided with an ejector cavity (13).

9. An injection mould according to claim 1, characterized in that the ejector plate (9) is a silicone plate.

10. An injection mould according to claim 8, characterized in that the ejection cavity (13) is trapezoidal.

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