Bidirectional core-pulling injection mold mechanism of oil cylinder

Abstract

The utility model discloses an oil cylinder two-way core-pulling injection mold mechanism which comprises an oil cylinder, a slide A and a slide B, the slide A and the slide B are respectively arranged along the Y-axis direction and the X-axis direction and used for connecting a mold, the oil cylinder is connected with a shovel base A arranged along the Y-axis direction through an oil cylinder meson, and the shovel base A is matched with the slide A in an inclined plane mode and used for driving the slide A to act along the X-axis direction. A driving block is further arranged on the shovel base A, a connecting block arranged in the X-axis direction is matched with the upper slope of the driving block, a shovel base B arranged in the X-axis direction is connected to the connecting block, and the shovel base B is matched with the slide B in a slope mode and used for driving the slide B to act in the Y-axis direction. In the specific implementation process, one oil cylinder can realize core-pulling movement of two movement slides in different directions, so that the use of oil cylinders in a double-color injection mold is reduced, the purposes of simplifying the mold structure and reducing the mold size can be achieved, the manufacturing cost of the mold can be effectively reduced, and the manufacturing period of the mold can be shortened.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to a two-way core-pulling injection mold mechanism for an oil cylinder. Background Technique

[0002] In the design and application of injection molds, the cylinder core-pulling structure is a very common core-pulling mechanism. Especially in the two-color blade molds, the oil cylinder core-pulling mechanism is the preferred mechanism to realize the two-color injection molding of the blade core. The ordinary oil cylinder core-pulling structure is that one oil cylinder only drives the core-pulling in one direction. Therefore, in the design of the circumferential blade two-color mold, more oil cylinders are required, resulting in a larger space required for the mold, a more complicated oil circuit design, a more numerous control circuit for the oil cylinder action, and at the same time, the template has a strength risk due to the clearance for the designed oil cylinder. Since the oil cylinder mechanism requires a large design space, it not only increases the external dimensions of the mold but also often causes problems such as the mold exceeding the maximum mold size allowed by the customer-specified machine tool, which increases the difficulty of mold design and also increases the mold cost. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a two-way core-pulling injection mold mechanism for an oil cylinder to solve the technical problems raised in the above background technique.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A two-way core-pulling injection mold mechanism for an oil cylinder includes an oil cylinder and a core-pulling member A and a core-pulling member B that are respectively arranged along the Y-axis and X-axis directions and are used to connect the mold. The oil cylinder is connected with a base A arranged along the Y-axis direction through an oil cylinder spacer. The base A is in inclined surface fit with the core-pulling member A and is used to drive the core-pulling member A to act along the X-axis direction. A driving block is further arranged on the base A. The driving block is in inclined surface fit with a connecting block arranged along the X-axis direction. The connecting block is connected with a base B arranged along the X-axis direction. The base B is in inclined surface fit with the core-pulling member B and is used to drive the core-pulling member B to act along the Y-axis direction.

[0006] In the above content of the utility model, further, the core-pulling member A includes a driving block A, a blade fixing block A, and a blade A. The driving block A is in inclined surface fit with the base A. The blade fixing block A is fixedly connected with the driving block A. The blade A is fixedly connected with the blade fixing block A.

[0007] In the above content of the utility model, further, the core-pulling member B includes a driving block B, a blade fixing block B, and a blade B. The driving block B is in inclined surface fit with the base B. The blade fixing block B is fixedly connected with the driving block B. The blade B is fixedly connected with the blade fixing block B.

[0008] In the above-mentioned utility model content, further, the included angle between the driving block A and the shovel base A is 5° - 10°.

[0009] In the above-mentioned utility model content, further, the included angle between the driving block B and the shovel base B is 5° - 10°.

[0010] In the above-mentioned utility model content, further, the included angle between the driving block A and the shovel base A is 5°, the included angle between the driving block B and the shovel base B is 7°, and the included angle between the shovel base A and the connecting block is 35°.

[0011] The beneficial effects of the present utility model are as follows: In the specific implementation process of the present utility model, one oil cylinder can achieve the core-pulling movement of two moving positions in different directions, reducing the use of oil cylinders in two-color injection molds. It can not only achieve the purpose of simplifying the mold structure and reducing the mold size, but also effectively reduce the manufacturing cost of the mold and shorten the production cycle of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Figure 2 is Figure 1 a top view;

[0014] Figure 3 is Figure 2 a partial enlarged view of part A in

[0015] Figure 4 is Figure 3 a sectional view taken along line B-B in

[0016] Figure 5 is Figure 3 a sectional view taken along line C-C in

[0017] In the figure, 1 - moving position A, 2 - moving position B, 3 - mold, 4 - oil cylinder, 5 - oil cylinder spacer, 6 - driving block, 7 - connecting block, 1.1 - driving block A, 1.2 - blade fixing block A, 1.3 - blade A, 1.4 - shovel base A, 2.1 - driving block B, 2.2 - blade fixing block B, 2.3 - blade B, 2.4 - shovel base B. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The following describes the implementation modes of the present utility model through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation modes. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0019] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present utility model. Therefore, only the components related to the present utility model are shown in the drawings, rather than being drawn according to the number, shape, and size of the components during actual implementation. The type, quantity, and proportion of each component during actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0020] Embodiment:

[0021] An injection mold mechanism with double-direction core pulling by an oil cylinder. Refer to the attached Figure 1 - attached Figure 3 As shown in the figure, it includes an oil cylinder 4 and a slider A1 and a slider B2 that are respectively arranged along the Y-axis and X-axis directions and are used to connect the mold 3. The oil cylinder 4 is connected with a lifting block A1.4 arranged along the Y-axis direction through an oil cylinder spacer 5. The lifting block A1.4 is in inclined surface fit with the slider A1 and is used to drive the slider A1 to move along the X-axis direction. Specifically, refer to the attached Figure 4 As shown in the figure, the slider A1 includes a driving block A1.1, a blade fixing block A1.2, and a blade A1.3. The driving block A1.1 is in inclined surface fit with the lifting block A1.4. The blade fixing block A1.2 is fixedly connected with the driving block A1.1. The blade A1.3 is fixedly connected with the blade fixing block A1.2. Please continue to refer to the attached Figure 3 As shown in the figure, an angle ∠1 as shown in Figure 3 is formed between the lifting block A1.4 and the inclined surface of the driving block A1.1 of the slider A1. During the two-color injection molding process of the mold, the oil cylinder 4 extends along the Y-axis direction. The lifting block A1.4 squeezes the driving block A1.1 of the slider A1 through the inclined surface, driving the fixing block A1.2 to move along the X-axis direction. Since the blade A1.3 is fixedly connected with the blade fixing block A1.2, the blade A1.3 is driven to move in the X-axis direction.

[0022] Continue to refer to the attached Figure 5As shown, a driving block 6 is further provided on the shovel base A1.4. A connecting block 7 arranged along the X-axis is in inclined surface fit with the driving block 6. A shovel base B2.4 arranged along the X-axis is connected to the connecting block 7. The shovel base B2.4 is in inclined surface fit with the slider B2 and is used to drive the slider B2 to move along the Y-axis. The slider B2 includes a driving block B2.1, a blade fixing block B2.2, and a blade B2.3. The driving block B2.1 is in inclined surface fit with the shovel base B2.4. The blade fixing block B2.2 is fixedly connected to the driving block B2.1. The blade B2.3 is fixedly connected to the blade fixing block B2.2. Please refer to the appendix again. Figure 3 As shown, an angle ∠2 is formed between the inclined surfaces of the driving block 6 on the shovel base A1.4 and the connecting block 7, and an angle ∠3 is formed between the inclined surfaces of the driving block B2.1 of the shovel base B2.4 and the slider B2. When the oil cylinder 4 extends during the two-color injection molding process of the mold, the shovel base A1.4 uses the driving block 6 to drive the connecting block 7 to move along the X-axis, and then drives the shovel base B2.4 fixedly connected to the connecting block 7 to move in the reverse direction of the X-axis together. During the movement of the shovel base B2.4, it further squeezes the driving block B2.1 through the inclined surface, causing the driving block B2.1 to move along the Y-axis, and finally driving the blade B2.3 to move along the Y-axis.

[0023] In the actual application process, if the angles of ∠1 and ∠3 are designed to be too large, it will greatly increase the working load of the oil cylinder 4. Therefore, in this application, the included angle ∠1 between the driving block A1.1 and the shovel base A1.4 is designed to be 5°-10°, and the included angle ∠3 between the driving block B2.1 and the shovel base B2.4 is also designed to be 5°-10°.

[0024] Specifically in this embodiment, please continue to refer to the appendix. Figure 3 As shown, the included angle ∠1 between the driving block A1.1 and the shovel base A1.4 is designed to be 5°, and the included angle ∠3 between the driving block B2.1 and the shovel base B2.4 is designed to be 7°. During the injection molding process, since the movement stroke of the blade A1.3 along the X-axis and the movement stroke of the blade B2.3 along the Y-axis are both equal to the product rubber position thickness S. Therefore, it is necessary to ensure that the movement strokes of the blade A1.3 and the blade B2.3 are equal (i.e., both equal to S) during the movement of the oil cylinder 4. Therefore, it is necessary to determine the angle formed between the inclined surfaces of the driving block 6 and the connecting block 7 (i.e., the angle of ∠2) according to the angles of ∠1 and ∠3.

[0025] In this embodiment, the product rubber position thickness S of the shown mold 3 = 2.33 mm. Let the oil cylinder stroke be L. When the blade A moves along the X-axis, according to the trigonometric function relationship, it can be known that: tan∠1 = L / S, that is, L = S / tan∠1. Substituting ∠1 = 5° and S = 2.33 mm, L = 2.33 / tan5°≈26.6 mm can be obtained.

[0026] Let the movement stroke of the shovel base B2.4 in the X-axis direction be S'. Since the movement stroke of the blade B2.3 in the Y-axis direction is also S, according to the trigonometric function relationship: tan∠3 = S / S', that is, S' = S / tan∠3 = 2.33 / tan7° ≈ 18.9 mm. During the movement of the driving block 6, according to the trigonometric function relationship: tan∠2 = S' / L. Substituting L = 26.6 mm and S' = 18.9 mm, we get: tan∠2 = 18.9 / 26.6 ≈ 0.71. From the tangent value, tan35° ≈ 0.7. Therefore, the angle ∠2 between the shovel base A1.4 and the connecting block 6 is designed to be 35°.

[0027] In summary, the present utility model drives the row-position blades of two different row-positions to move synchronously by one oil cylinder 4 to realize the core-pulling movement of the row-positions moving in two different directions, reducing the use of oil cylinders in the two-color injection mold. It can not only achieve the purpose of simplifying the mold structure and reducing the mold size, but also effectively reduce the manufacturing cost of the mold and shorten the manufacturing cycle of the mold, which is suitable for popularization and use.

[0028] The above embodiments only represent the specific implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A cylinder bidirectional core-pulling injection mold mechanism, characterized in that: It includes an oil cylinder and a slide A and a slide B which are arranged along the Y-axis and X-axis directions respectively and are used to connect the mold. The oil cylinder is connected to a shovel base A arranged along the Y-axis direction through a cylinder meson. The inclined surfaces between the shovel base A and the slide A are matched and are used to drive the slide A to move along the X-axis direction. A driving block is also provided on the shovel base A. The inclined surface on the driving block is matched with a connecting block arranged along the X-axis direction. The connecting block is connected to a shovel base B arranged along the X-axis direction. The inclined surface between the shovel base B and the slide B is matched and is used to drive the slide B to move along the Y-axis direction.

2. The oil cylinder bidirectional core-pulling injection mold mechanism according to claim 1, characterized in that: The row position A includes a driving block A, a blade fixing block A and a blade A. The driving block A and the shovel base A are matched with each other at an inclined surface. The blade fixing block A is fixedly connected to the driving block A. The blade A is fixedly connected to the blade fixing block A.

3. The oil cylinder bidirectional core-pulling injection mold mechanism according to claim 1, characterized in that: The slider B includes a driving block B, a blade fixing block B and a blade B. The driving block B is matched with the shovel base B on an inclined surface. The blade fixing block B is fixedly connected to the driving block B. The blade B is fixedly connected to the blade fixing block B.

4. The oil cylinder bidirectional core-pulling injection mold mechanism according to claim 1, characterized in that: The included angle between the driving block A and the shovel base A is 5°-10°.

5. The oil cylinder bidirectional core-pulling injection mold mechanism according to claim 4, characterized in that: The angle between the driving block B and the shovel base B is 5°-10°.

6. The oil cylinder bidirectional core-pulling injection mold mechanism according to claim 5, characterized in that: The angle between the driving block A and the shovel base A is 5°, the angle between the driving block B and the shovel base B is 7°, and the angle between the shovel base A and the connecting block is 35°.

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