Runner adjusting valve for adjusting plastic flow

Abstract

The utility model discloses a runner regulating valve for regulating plastic flow, which belongs to the technical field of valves, and comprises a regulating valve main body (1), a scale positioning needle (2) and an elastic piece (3) which are sequentially arranged, the regulating valve main body (1) comprises a valve body (11), a plastic inlet (12), a plastic outlet (13), a centre hole (14), a wrench groove (15) and a regulating scale groove (16); by the adoption of the flow regulating valve, the same die can produce two qualified products with large weight difference at the same time, and the problems that the die is complex in structure and high in cost are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a runner regulating valve for regulating the flow rate of plastic. Background Technique

[0002] In mold development, it is often required by customers to develop two products with large weight differences in a set of molds, and it is required to produce two products simultaneously in a set of molds. If the mold is designed according to the conventional scheme at this time, in the subsequent injection molding production, the cavity of the product with a light weight will be filled completely, while the cavity of the product with a heavy weight is still in an unfilled state; conversely, after the product with a heavy weight is completely filled, the product with a light weight will have problems of excessive glue and severe burrs on the product parting surface or exhaust surface. Existing molds for solving similar problems have the problems of complex structure and high cost. Therefore, how to make the molten plastic reach the two-cavity mold cavities simultaneously, fill out two complete and abnormal-free products, and reduce the mold complexity and cost is a technical problem urgently to be solved in this field. Summary of the Invention

[0003] The purpose of the utility model is to provide a runner regulating valve for regulating the flow rate of plastic to solve the above problems.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is as follows: A runner regulating valve for regulating the flow rate of plastic includes a regulating valve body, a scale positioning pin and an elastic member arranged in sequence. Among them, the regulating valve body includes a valve body, a glue inlet, a glue outlet, a thimble hole, a wrench groove and a regulating scale groove. The valve body serves as a supporting body, the glue inlet and the glue outlet are arranged on the same horizontal line of the valve body. The wrench groove and the thimble hole are arranged at the center of the valve body. The regulating scale groove is arranged on the bottom surface of the hanging platform below the glue outlet, and a scale positioning pin needs to be arranged below, that is, it plays a fixing role. Among them, the valve body serves as a supporting body, the glue inlet and the glue outlet are arranged on the same horizontal line, the wrench groove and the thimble hole are arranged at the center of the valve body, the regulating scale groove is arranged on the bottom surface of the hanging platform below the glue outlet, and the regulating scale groove is correspondingly arranged with the scale positioning pin to play a fixing role.

[0005] As a preferred technical scheme: The elastic member is a rectangular spring.

[0006] As a preferred technical scheme: The wrench groove is an internal hexagonal wrench groove.

[0007] Compared with the prior art, the advantages of the utility model are as follows: By using the flow regulating valve of the utility model, a set of molds can simultaneously produce two qualified products with large weight differences, and also solve the problems of complex mold structure and high cost. Brief Description of the Drawings

[0008] Figure 1 The overall structure diagram of the flow path regulating valve according to the embodiment of the present utility model;

[0009] Figure 2 is Figure 1 the structure diagram of the regulating valve body in

[0010] Figure 3 The initial state diagram when the flow path regulating valve of the present utility model is in use;

[0011] Figure 4 The display of the regulating valve installation example;

[0012] Figure 5 The flow rate adjustment state diagram when the flow path regulating valve of the present utility model is in use.

[0013] In the figure: 1. Regulating valve body; 11. Valve body; 12. Glue inlet; 13. Glue outlet; 14. Thimble hole; 15. Wrench groove; 16. Adjustment scale groove; 2. Scale positioning pin; 3. Elastic member; A. Lighter product; B. Heavier product; C. Flow path. Specific implementation manner

[0014] The present utility model will be further described below in conjunction with the accompanying drawings.

[0015] Embodiment:

[0016] Refer to Figure 1 , a flow path regulating valve for regulating the size of plastic flow rate, comprising a regulating valve body 1, a scale positioning pin 2 and an elastic member 3 arranged in sequence from left to right. Among them, the structure of the regulating valve body 1 is as Figure 2 shown, including a valve body 11, a glue inlet 12, a glue outlet 13, a thimble hole 14, a wrench groove 15 and an adjustment scale groove 16. Among them, the valve body 11 serves as a supporting main body, the glue inlet 12 and the glue outlet 13 are arranged on the same horizontal line of the valve body 11, the wrench groove 15 and the thimble hole 14 are arranged at the center of the valve body 11, the adjustment scale groove 16 is arranged on the bottom surface of the hanging platform below the glue outlet 12, the adjustment scale groove 16 is correspondingly arranged with the scale positioning pin 2, and the scale positioning pin plays a role in positioning the adjustment scale.

[0017] In this embodiment, the elastic member 3 is a rectangular spring, and the wrench groove 15 is an internal hexagonal wrench groove;

[0018] Among the above components, the regulating valve body 1 is the main component for regulating the plastic flow rate; the scale positioning pin 2 is used to fix the rotated regulating valve to prevent it from rotating again; the role of the rectangular spring is that when the internal hexagonal wrench rotates the regulating valve, the scale positioning pin 2 is forced to press down the spring. After the regulating valve reaches the next scale, the spring pressure makes the scale positioning pin 2 return to its position to fix the regulating valve;

[0019] The glue inlet 12 is the inlet for the plastic to enter the regulating valve; the glue outlet 13 is the outlet for the plastic to flow out of the regulating valve; the adjustment scale 16 defines the rotation angle of each grid. In this embodiment, it is taken as an example that each rotation of one grid is 5°; the hexagonal wrench groove 15 can be used to apply force with a hexagonal wrench to rotate the regulating valve.

[0020] During use, the above-mentioned runner regulating valve is arranged on one side of the cavity runner C of the lighter product A, as Figure 3 shown. For the first trial mold, the regulating valve does not need to be adjusted, and the glue injection amounts filled in the cavities of the two cavities A and B are the same.

[0021] Then, weigh the weights of the two products with an electronic scale and compare them with their own weights. The specific gravity of the lighter product A is higher than that of the heavier product B (taking 2:1 as an example); at this time, adjust the runner valve again. Referring to the specific gravity, the lighter product A is twice that of the heavier product B. To achieve balance, reduce the runner of the lighter product A to half of that of the heavier product B. Use the corresponding hexagonal wrench to turn the runner regulating valve three scales, that is, adjust by 15°. The state diagram after adjustment is as Figure 5 shown. After adjustment, the flow rate of the glue outlet 13 is only half of that before adjustment, so that the specific gravities of the products produced by the two cavities are the same. At this time, the mold can produce two qualified products with large weight differences at the same time.

[0022] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flow channel regulating valve for adjusting the flow rate of plastic, characterized in that , comprising a regulating valve body (1), a scale positioning needle (2) and an elastic member (3) which are arranged in sequence, wherein the regulating valve body (1) comprises a valve body (11), a glue inlet (12), a glue outlet (13), a pinhole (14), a wrench groove (15) and an adjusting scale groove (16), wherein the valve body (11) serves as a supporting body, the glue inlet (12) and the glue outlet (13) are arranged on the same horizontal line of the valve body (11), the wrench groove (15) and the pinhole (14) are arranged at the center of the valve body (11), and the adjusting scale groove (16) is arranged on the bottom surface of the hanging platform below the glue outlet (13), and the adjusting scale groove (16) is arranged corresponding to the scale positioning needle (2).

2. A flow channel regulating valve for adjusting the flow rate of plastic according to claim 1, characterized in that: The elastic member (3) is a rectangular spring.

3. A flow channel regulating valve for adjusting the flow rate of plastic according to claim 1, characterized in that: The wrench groove (15) is a hexagonal wrench groove.

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