Mold opening mechanism for mold

Abstract

The utility model relates to a mold opening mechanism for a mold, and belongs to the field of injection molds. The upper mold is arranged on the upper surface of the lower mold in a sliding manner; the two limiting assemblies are symmetrically arranged on the front surface of the upper mold; the connecting assembly is arranged on the front surface of the lower die and comprises a connecting sleeve which is arranged on the front surface of the lower die; and the four first bolts are rotatably and uniformly distributed on the inner side of the connecting sleeve and are used for mounting the connecting sleeve. Through the arrangement of the limiting assembly and the connecting assembly, the stroke of the upper mold and the lower mold during mold opening can be limited, and after the upper mold and the lower mold are closed, the limiting assembly and the connecting assembly can automatically reset, so that the use convenience is improved, the contact area of the limiting assembly and the connecting assembly is small, and the service life of the mold is prolonged. Therefore, the service life of the limiting assembly and the connecting assembly is prolonged, and when the mold opening stroke of the upper mold and the mold opening stroke of the lower mold are limited, no noise is generated, and the influence on workers is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely for a mold opening mechanism. BACKGROUND

[0002] Injection molding is a method of production molding of industrial products, and the products are usually made of rubber injection molding and plastic injection molding, and the existing injection molding product forming production is mainly completed through the joint action of an injection molding machine and a mold, in working, first, the injection molding machine extrudes the material in a molten state into the mold, then forms in the mold cavity between the fixed mold and the movable mold, and after cooling, the molded product is obtained, and finally, the mold is opened to take out the product.

[0003] However, the existing mold is separated by the spring force and the nylon plug tension when opening the mold, the opening distance is controlled by the length of the limiting screw, thereby positioning the stroke of the mold opening, the plug is easy to wear out and fail when the production mold is more and the mold temperature is higher, and the mold plate is stopped suddenly when the mold plate is opened to a position, and the noise is large. UTILITY MODEL CONTENT

[0004] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a mold opening mechanism, which has the advantages of long service life and small use noise. In order to achieve the above purpose, the utility model provides the following technical scheme: a mold opening mechanism, comprising a lower mold;

[0005] The upper mold is slidably arranged on the upper surface of the lower mold; two limiting components are symmetrically arranged on the front surface of the upper mold; a connecting component is arranged on the front surface of the lower mold, comprising a connecting sleeve arranged on the front surface of the lower mold; four first bolts are rotatably and uniformly distributed on the inner side of the connecting sleeve for mounting the connecting sleeve.

[0006] As a further improvement of the utility model, four first threaded holes are uniformly arranged on the front surface of the lower mold, and the four first threaded holes are arranged in the four first threaded holes. As a further improvement of the utility model, two second threaded holes are symmetrically arranged on the front surface of the upper mold;

[0007] Four limiting rods are uniformly arranged on the front surface of the upper mold to improve the stability of the limiting component in use.

[0008] As a further improvement of the utility model, the limiting component comprises a limiting block arranged on the front surface of the upper mold;

[0009] Two limiting holes are symmetrically arranged on the front surface of the limiting block, and the inner sides of the two limiting rods on the left side of the second threaded hole are located on the inner sides of the two limiting holes respectively.

[0010] A fixing hole is arranged on the right side of the limiting block.

[0011] As a further improvement of the utility model, the outer side of the second bolt is threadedly connected with the inner side of the second threaded hole.

[0012] As a further improvement of the utility model, one side of the fixing hole close to the second bolt is an inclined surface.

[0013] As a further improvement of the utility model, the connecting assembly further comprises a connecting piece rotatably arranged on the inner side of the connecting sleeve.

[0014] As a further improvement of the utility model, the connecting piece comprises a connecting block arranged on the inner side of the connecting piece.

[0015] A convex block is rotatably arranged on the rear surface of the connecting piece, and two fixing shafts are respectively arranged on the left and right surfaces of the connecting block, and the outer sides of the two fixing shafts are in contact with the front surfaces of the two limiting blocks.

[0016] An arc surface is arranged on the upper surface of the connecting block.

[0017] The above improved technical features can be combined with each other as long as they do not conflict with each other.

[0018] Overall, compared with the prior art, the above technical scheme conceived by the utility model has the following beneficial effects:

[0019] 1. The mold opening mechanism in the preferred embodiment of the utility model can limit the stroke when the upper mold and the lower mold are opened, and the limiting assembly and the connecting assembly are automatically reset after the upper mold and the lower mold are closed, thereby improving the use convenience, and the contact surface of the limiting assembly and the connecting assembly is less, thereby improving the service life of the limiting assembly and the connecting assembly, and the noise is not emitted when the opening stroke of the upper mold and the lower mold is limited, thereby affecting the workers.

[0020] 2. The mold opening mechanism in the preferred embodiment of the utility model has a simple overall structure and is easy to operate, can not only limit the stroke when the upper mold and the lower mold are opened, but also improve the service life of the limiting assembly and the connecting assembly, and will not emit noise to affect the workers, has good use value and application prospect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a preferred embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the upper mold and the lower mold in the preferred embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the overall three-dimensional structure of the limiting component in the preferred embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the connecting assembly in a preferred embodiment of the present utility model;

[0025] Figure 5 It is a schematic diagram of the overall top view of the three-dimensional structure of the connecting component in the preferred embodiment of the present utility model.

[0026] In all the drawings, the same figure marks represent the same technical features, specifically: 1. lower mold; 11. first threaded hole; 2. upper mold; 21. second threaded hole; 22. limiting rod; 3. limiting assembly; 31. limiting block; 32. limiting hole; 33. second bolt; 34. fixing hole; 4. connecting assembly; 41. connecting sleeve; 42. first bolt; 43. connecting piece; 431. connecting block; 432. protrusion; 433. fixed shaft; 434. arc surface. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0028] 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] In the embodiment, Figures 1-5 Provided is a mold opening mechanism, which may optionally include but is not limited to: a lower mold 1;

[0030] The upper mold 2 is slidably arranged on the upper surface of the lower mold 1; two limit assemblies 3 are symmetrically arranged on the front surface of the upper mold 2; a connecting assembly 4 is arranged on the front surface of the lower mold 1, which includes a connecting sleeve 41, which is arranged on the front surface of the lower mold 1; four first bolts 42 are rotatable and evenly distributed on the inner side of the connecting sleeve 41 for installing the connecting sleeve 41.

[0031] In this embodiment, the present invention provides a mold opening mechanism, in which the connection component 4 slides outside the limit component 3 when the upper mold 2 and the lower mold 1 are opened. When the connection component 4 moves a certain distance, the two limit components 3 limit the connection component 4, thereby limiting the mold opening stroke between the upper mold 2 and the lower mold 1. Figure 2 As shown, four first threaded holes 11 are evenly distributed on the front surface of the lower mold 1, and four first bolts 42 are respectively located in the four first threaded holes 11. Figure 2 As shown, two second threaded holes 21 are symmetrically opened on the front surface of the upper mold 2; four limiting rods 22 are evenly distributed on the front surface of the upper mold 2 to improve the stability of the limiting assembly 3 when in use.

[0032] Further, such as Figure 3 As shown, the limiting assembly 3 in the preferred embodiment of the present invention includes a limiting block 31, which is provided on the front surface of the upper mold 2; two limiting holes 32, which are symmetrically opened on the front surface of the limiting block 31, and the two limiting rods 22 located on the left side of the second threaded hole 21 are respectively located inside the two limiting holes 32; a second bolt 33, which is rotatably provided on the inside of the limiting block 31, and the second bolt 33 is located inside the left second threaded hole 21; and a fixing hole 34, which is opened on the right side of the limiting block 31. Furthermore, the outer side of the second bolt 33 is threadedly connected to the inner side of the second threaded hole 21.

[0033] Furthermore, the fixing hole 34 has an inclined surface near the second bolt 33. In this embodiment, multiple preferred embodiments of the limit assembly 3 are provided. When the upper mold 2 and the lower mold 1 are opened, the upper mold 2 drives the limit block 31 to move. When the connecting assembly 4 enters the fixing hole 34, the upper mold 2 and the lower mold 1 cannot open further, thereby limiting the mold opening stroke.

[0034] Further, such as Figures 4-5 As shown, the connecting assembly 4 in the preferred embodiment of the present invention further includes a connecting member 43, which is rotatably arranged on the inner side of the connecting sleeve 41. Figure 5As shown, the connecting piece 43, which comprises a connecting block 431 arranged at the inner side of the connecting piece 43, a protrusion 432 rotatably arranged at the rear surface of the connecting piece 43, two fixing shafts 433 respectively arranged at the left and right surfaces of the connecting block 431, and the outer sides of the two fixing shafts 433 are in contact with the front surfaces of the two limiting blocks 31, and an arc surface 434 arranged at the upper surface of the connecting block 431. In this embodiment, a plurality of preferred embodiments of the connecting assembly 4 are given, when the mold is opened by the upper mold 2 and the lower mold 1, the two fixing shafts 433 will slide at the outer sides of the limiting blocks 31, when the two fixing shafts 433 move to the front of the fixing hole 34, the connecting block 431 will rotate under the action of the protrusion 432, so that the connecting block 431 drives the two fixing shafts 433 to enter the fixing hole 34, so that the opening stroke of the upper mold 2 and the lower mold 1 can be limited, when the upper mold 2 and the lower mold 1 are closed, the connecting block 431 will rotate under the action of the arc surface 434 and the side of the fixing hole 34 close to the second bolt 33 being an inclined surface, so that the two fixing shafts 433 at the outer side of the connecting block 431 move out of the fixing hole 34, so that the fixing shaft 433 can limit the opening stroke when the upper mold 2 and the lower mold 1 are opened next time.

[0035] Those skilled in the art will easily understand that the above description is only the preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mold opening mechanism, characterized in that: It includes a lower mold (1); An upper mold (2) is slidably disposed on the upper surface of the lower mold (1); Two limiting components (3) are symmetrically arranged on the front surface of the upper mold (2); A connecting assembly (4) provided on the front surface of the lower mold (1) comprises a connecting sleeve (41) provided on the front surface of the lower mold (1); four first bolts (42) rotatably and evenly distributed on the inner side of the connecting sleeve (41) for installing the connecting sleeve (41).

2. The mold opening mechanism according to claim 1, characterized in that: Four first threaded holes (11) are evenly distributed and opened on the front surface of the lower mold (1), and the four first bolts (42) are respectively located in the four first threaded holes (11).

3. The mold opening mechanism according to claim 2, characterized in that: Two second threaded holes (21) are symmetrically opened on the front surface of the upper mold (2); Four limiting rods (22) are evenly distributed on the front surface of the upper mold (2) and are used to improve the stability of the limiting assembly (3) when in use.

4. The mold opening mechanism according to claim 3, characterized in that: The limiting assembly (3) comprises a limiting block (31) provided on the front surface of the upper mold (2); Two limiting holes (32) are symmetrically opened on the front surface of the limiting block (31), and the two limiting rods (22) located on the left side of the second threaded hole (21) are respectively located on the inner sides of the two limiting holes (32); A second bolt (33) is rotatably disposed on the inner side of the limiting block (31), and the second bolt (33) is located on the inner side of the second threaded hole (21) on the left side; The fixing hole (34) is opened on the right side of the limiting block (31).

5. The mold opening mechanism according to claim 4, characterized in that: The outer side of the second bolt (33) is threadedly connected to the inner side of the second threaded hole (21).

6. The mold opening mechanism according to claim 5, characterized in that: A surface of the fixing hole (34) close to the second bolt (33) is an inclined surface.

7. The mold opening mechanism according to claim 6, characterized in that: The connecting assembly (4) further comprises a connecting piece (43) rotatably arranged on the inner side of the connecting sleeve (41).

8. The mold opening mechanism according to claim 7, characterized in that: The connecting member (43) includes a connecting block (431) disposed on the inner side of the connecting member (43); a protrusion (432) rotatably disposed on the rear surface of the connecting member (43); Two fixed shafts (433) are respectively provided on the left and right surfaces of the connecting block (431), and the outer sides of the two fixed shafts (433) are in contact with the front surfaces of the two limiting blocks (31); The arc surface (434) is provided on the upper surface of the connecting block (431).

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