A mold structure for solving ejection imbalance of injection mold

Abstract

The utility model discloses a mould structure for solving the ejection unbalance of injection mould, including mould main part and bevel pin, the one side of mould main part is provided with bevel pin, the top and side of mould main part are provided with the ejection mechanism, the one side below of mould main part is provided with bevel pin, and the side of mould main part of installing bevel pin side is provided with mould rib plate hole, and both sides of mould rib plate hole are provided with the positioning column hole symmetrically, and the positioning column hole extends to the inboard of mould main part. The utility model discloses through setting up bevel pin and positioning column hole on the original mould, makes the bevel pin positioning product in mould opening, prevents the product loosening to cause the deformation, avoids the ejection unbalance of mould, and simultaneously does not influence product light transmission.

Description

Technical Field

[0001] This utility model belongs to the field of mold injection technology, and in particular relates to a mold structure for solving the problem of uneven ejection in injection molds. Background Technology

[0002] Current plastic products have aesthetic requirements for appearance and need to be translucent, i.e., have an optical visual effect. When designing translucent molded products, it is necessary to consider that there should be no splicing or ejector pins in the translucent area. During the mold opening process, if there are too few ejector pins, the ejection will be unbalanced, causing product deformation.

[0003] Existing traditional injection molding molds require redesigning the ejector pin layout and adjusting the ejector point layout to match the demolding process in order to solve the problem of uneven ejection. This results in ejector pin marks on the light-transmitting areas of the product, affecting the optical visual effect of the product itself and limiting the product's appearance design. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a mold structure for solving the problem of uneven ejection of injection molds. This utility model sets inclined pins and positioning pin holes on the original mold so that the inclined pins position the product during mold opening, preventing the product from loosening and causing deformation, thus avoiding uneven ejection of the mold, and at the same time not affecting the light transmission of the product.

[0005] To achieve the aforementioned objectives of this utility model, the technical solution provided by this utility model patent is as follows:

[0006] A mold structure for solving the problem of uneven ejection in injection molds includes a mold body and a slanted pin. The slanted pin is provided on one side of the mold body. Ejection mechanisms are provided on the top and side of the mold body. The slanted pin is provided below one side of the mold body. A mold rib hole is provided on the side of the mold body on the side where the slanted pin is installed. Positioning pin holes are symmetrically provided on both sides of the mold rib hole, and the positioning pin holes extend into the inside of the mold body.

[0007] Furthermore, the inclined pin is generally rectangular, with a fixing pin hole at the lower end, and the upper end of the inclined pin is connected and fixed to the lower end of one side of the mold. The angle between the inclined pin and the vertical direction is 8°, and multiple mold rib holes are provided on the side of the mold body above the inclined pin.

[0008] Furthermore, the mold rib holes include a first rib hole and a second rib hole. The first rib holes are symmetrically distributed on the side of the mold body along the center line of the inclined pin. The second rib holes are symmetrically arranged outside the first rib holes. Positioning pin holes are symmetrically arranged outside the second rib holes.

[0009] Furthermore, the first rib hole and the second rib hole are square holes, the length of the first rib hole is less than the length of the second rib hole, the width of the first rib hole is less than the width of the second rib hole, and the upper ends of the first rib hole and the second rib hole are flush.

[0010] Furthermore, the root diameter of the positioning pin hole is 3.4 mm, the end diameter of the positioning pin hole is 3.2 mm, the hole depth of the positioning pin hole is 5.4 mm, and the center distance between the two positioning pin holes on the side of the mold body is 13.65 mm.

[0011] Based on the above solution, the mold structure of this utility model for solving the problem of uneven ejection in injection molds has achieved positive and beneficial results in practice:

[0012] 1. This utility model provides a mold structure for solving the problem of uneven ejection in injection molds. By setting inclined pins and positioning pin holes on the original mold, the inclined pins position the product during mold opening, preventing the product from loosening and causing deformation, thus avoiding uneven ejection and not affecting the light transmission of the product. Attached Figure Description

[0013] Figure 1 This utility model provides a mold structure diagram showing the usage state of a mold structure used to solve the problem of uneven ejection in injection molds.

[0014] Figure 2 This is a side view of a mold structure used in this utility model to solve the problem of uneven ejection in injection molds.

[0015] Figure 3 This utility model relates to a mold structure diagram of an injection molded product used to solve the problem of uneven ejection in injection molds. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of this invention.

[0017] like Figure 1-3 As shown, this utility model relates to a mold structure for solving the problem of uneven ejection in injection molds, including a mold body 3 and a slanted pin 1. The slanted pin 1 is provided on one side of the mold body 3. Ejection mechanisms are provided on the top and sides of the mold body 3. The slanted pin 1 is provided on the lower side of one side of the mold body 3. A mold rib hole is provided on the side of the mold body 3 on the side where the slanted pin 1 is installed. Positioning pin holes 2 are symmetrically provided on both sides of the mold rib hole, and the positioning pin holes 2 extend into the inside of the mold body 3.

[0018] The inclined pin 1 is generally rectangular, with a fixing pin hole at the lower end. The upper end of the inclined pin 1 is connected and fixed to the lower end of one side of the mold. The angle between the inclined pin 1 and the vertical direction is 8°. Multiple mold rib holes are provided on the side of the mold body 3 above the inclined pin 1.

[0019] The mold rib holes include a first rib hole 41 and a second rib hole 42. The first rib hole 41 is symmetrically distributed on the side of the mold body 3 along the center line of the inclined pin 1. The second rib hole 42 is symmetrically arranged outside the first rib hole 41. Positioning pin holes 2 are symmetrically arranged outside the second rib hole 42.

[0020] The first rib hole 41 and the second rib hole 42 are square holes. The length of the first rib hole 41 is less than the length of the second rib hole 42, and the width of the first rib hole 41 is less than the width of the second rib hole 42. The upper ends of the first rib hole 41 and the second rib hole 42 are flush.

[0021] The root diameter of the positioning pin hole 2 is 3.4 mm, the end diameter of the positioning pin hole 2 is 3.2 mm, the hole depth of the positioning pin hole 2 is 5.4 mm, and the center distance between the two positioning pin holes 2 on the side of the mold body 3 is 13.65 mm.

[0022] The mold opening sequence is as follows: After the injection mold cools down, the moving mold separates from the fixed mold, the main parting surface is opened, and the pillars position the product, such as... Figure 1 This ensures smooth product demolding. After mold opening, the ejection mechanism (such as ejector pins or ejector plates) pushes the product out of the cavity. The product is then removed and held in place by the inclined pin 1 to prevent it from loosening. This prevents the ejector pins from deforming the product during ejection. This simple structural modification effectively solves the problem of ejection imbalance, fundamentally solving the problem of mold ejection imbalance without increasing ejector pin positioning and without affecting the optical visual effect of light transmission.

[0023] The mold design for injection mold ejection imbalance solves the problem of product deformation by positioning the product with a slanted pin 1 without adding ejector pins or affecting the optical visual effect of light transmission. This greatly simplifies the mold structure and meets the customer's product requirements.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A mold structure for solving the problem of uneven ejection in injection molds, characterized in that, The mold includes a mold body and a slanted pin. The slanted pin is provided on one side of the mold body. The top and side of the mold body are provided with ejection mechanisms. The slanted pin is provided on the lower side of one side of the mold body. The side of the mold body on the side where the slanted pin is installed is provided with a mold rib plate hole. Positioning pin holes are symmetrically provided on both sides of the mold rib plate hole, and the positioning pin holes extend into the inside of the mold body.

2. The mold structure for solving the imbalance during ejection of an injection mold according to claim 1, characterized in that, The inclined pin is rectangular in shape. A fixing pin hole is provided at the lower end of the inclined pin. The upper end of the inclined pin is connected and fixed to the lower end of one side of the mold. The angle between the inclined pin and the vertical direction is 8°. Multiple mold rib holes are provided on the side of the mold body above the inclined pin.

3. A mold structure for solving the imbalance during ejection of an injection mold, as described in claim 2, characterized in that, The mold rib holes include a first rib hole and a second rib hole. The first rib hole is symmetrically distributed on the side of the mold body along the center line of the inclined pin. The second rib hole is symmetrically arranged outside the first rib hole. Positioning pin holes are symmetrically arranged outside the second rib hole.

4. A mold structure for solving the imbalance during ejection of an injection mold, as described in claim 3, characterized in that, The first rib hole and the second rib hole are square holes. The length of the first rib hole is less than the length of the second rib hole, and the width of the first rib hole is less than the width of the second rib hole. The upper ends of the first rib hole and the second rib hole are flush.

5. A mold structure for solving the imbalance during ejection of an injection mold according to claim 3, characterized in that, The root diameter of the positioning pin hole is 3.4 mm, the end diameter of the positioning pin hole is 3.2 mm, the hole depth of the positioning pin hole is 5.4 mm, and the center distance between the two positioning pin holes on the side of the mold body is 13.65 mm.

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