Injection mold for manufacturing earth leakage protection switch shell

Abstract

The utility model discloses an injection mold for manufacturing a leakage protection switch shell, which comprises a mold body, the mold body is arranged on a base of an injection molding machine, the mold body consists of a fixed mold and a movable mold, the fixed mold is arranged at the top of the movable mold, the fixed mold and the movable mold are both arranged on the base through sliding rods, and the sliding rods are arranged on the fixed mold and the movable mold. A double-positioning structure is further mounted on the mold body; and the dual positioning structure comprises a first positioning structure for positioning between the fixed mold and the movable mold and a second positioning structure for positioning an ejector pin on the base. According to the mode, the injection mold for manufacturing the earth leakage protection switch shell is provided with a double-positioning structure, so that the earth leakage protection switch shell can be ensured to be uniformly stressed during demolding, the earth leakage protection switch shell is prevented from being deformed or damaged during production, and the yield of products is ensured.

Description

Technical Field

[0001] The utility model relates to the field of molds, in particular to an injection mold for manufacturing a leakage protection switch housing. Background Art

[0002] The injection mold is an important equipment used in the plastic injection molding process. Its main function is to inject molten plastic into the mold cavity inside the mold, and then form the desired plastic product after it cools and solidifies.

[0003] During the production of leakage protection switch housings, uniform force is required during demolding to ensure product surface quality. However, existing injection molds experience uneven force during demolding, which is prone to deviations. This can cause deformation or damage to the leakage protection switch housing, thus affecting the yield rate. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide an injection mold for manufacturing a leakage protection switch housing, which can ensure that the leakage protection switch housing is subjected to uniform force during demoulding.

[0005] To solve the above technical problems, the present invention adopts a technical solution: an injection mold for manufacturing a leakage protection switch housing, comprising a mold body, the mold body being mounted on a base of an injection molding machine, the mold body being composed of a fixed mold and a movable mold, the fixed mold being arranged on top of the movable mold, the fixed mold and the movable mold being both mounted on the base via sliding rods, and a dual positioning structure being further mounted on the mold body;

[0006] The dual positioning structure includes a first positioning structure for positioning between the fixed mold and the movable mold and a second positioning structure for positioning the ejector pin on the base.

[0007] In a preferred embodiment of the present invention, the fixed mold is fixed on a slide rod vertically fixed on the base, the movable mold is slidably connected to the slide rod, and a sliding sleeve is provided between the movable mold and the slide rod.

[0008] In a preferred embodiment of the present invention, the first positioning structure includes a first positioning ring and a first positioning groove, the first positioning ring is arranged on the top of the movable mold, the first positioning groove is opened at the bottom of the fixed mold, the top of the first positioning ring is provided with an arc protrusion that matches the bottom of the first positioning groove, and a plurality of injection tubes pass through the fixed mold and are connected to the first positioning groove.

[0009] In a preferred embodiment of the present invention, the second positioning structure includes a second positioning ring and a second positioning groove, the second positioning ring is arranged at the bottom of the ejector block at the top of the ejector pin, and the second positioning groove is opened at the bottom of the mounting groove that matches the ejector block at the top of the ejector hole.

[0010] In a preferred embodiment of the present invention, a shaping groove is provided on the top of the movable mold, and the shaping groove surrounds the outside of the installation groove.

[0011] In a preferred embodiment of the present invention, the inner wall of the first positioning ring, the top of the first positioning groove, the shaping groove, the top of the movable mold and the top of the ejector block form a mold cavity.

[0012] The beneficial effects of the utility model are as follows: the utility model is an injection mold for manufacturing a leakage protection switch housing. The injection mold has a double positioning structure, which can ensure that the leakage protection switch housing is subjected to uniform force when demolding, avoid deformation or damage of the leakage protection switch housing during production, and ensure the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a front view of an injection mold for manufacturing a leakage protection switch housing.

[0014] Figure 2 for Figure 1 Assembly drawing.

[0015] The components in the accompanying drawings are marked as follows: 1. fixed mold; 2. movable mold; 3. ejector pin; 4. ejector block; 5. first positioning ring; 6. first positioning groove; 7. second positioning ring; 8. second positioning groove; 9. slide rod; 10. slide sleeve; 11. arc protrusion; 12. molding groove; 13. injection tube. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0017] See also Figure 1 and Figure 2 An injection mold for manufacturing a leakage protection switch housing includes a mold body, which is installed on the base of an injection molding machine. The mold body consists of a fixed mold 1 and a movable mold 2. The fixed mold 1 is arranged on the top of the movable mold 2. Both the fixed mold 1 and the movable mold 2 are installed on the base through a slide rod 9. A double positioning structure is also installed on the mold body, which can ensure that the leakage protection switch housing is subjected to uniform force during demolding, avoid deformation or damage of the leakage protection switch housing during production, and ensure the product yield.

[0018] The dual positioning structure includes a first positioning structure for positioning between the fixed mold 1 and the movable mold 2 and a second positioning structure for positioning the ejector pin 3 on the base.

[0019] The fixed mold 1 is fixed on a slide rod 9 vertically fixed on the base, and the movable mold 2 is slidably connected to the slide rod 9. A sliding sleeve 10 is provided between the movable mold 2 and the slide rod 9. The movable mold 2 slides upward during injection molding and slides downward during demoulding. The movable mold 2 slides up and down by a cylinder installed on the base.

[0020] The first positioning structure includes a first positioning ring 5 and a first positioning groove 6. The first positioning ring 5 is arranged on the top of the movable mold 2, and the first positioning groove 6 is opened at the bottom of the fixed mold 1. The first positioning ring 5 cooperates with the first positioning groove 6, so that the movable mold 2 and the fixed mold 1 are connected more accurately, thereby ensuring the quality of the shell during injection molding.

[0021] The top of the first positioning ring 5 is provided with an arc protrusion 11 that matches the bottom of the first positioning groove 6. The arc protrusion 11 makes the gap at the contact point between the first positioning ring 5 and the first positioning groove 6 face upward, which can prevent material from seeping out of the originally horizontal gap.

[0022] A plurality of injection tubes 13 pass through the fixed mold 1 and are communicated with the first positioning groove 6 . External injection equipment injects material into the mold cavity through the injection tubes 13 .

[0023] The second positioning structure includes a second positioning ring 7 and a second positioning groove 8. The second positioning ring 7 is arranged at the bottom of the ejection block 4 at the top of the ejector 3, and the second positioning groove 8 is opened at the bottom of the installation groove at the top of the ejector hole 3 and matched with the ejection block 4.

[0024] A shaping groove 12 is formed on the top of the movable mold 2 , and the shaping groove 12 surrounds the outside of the installation groove.

[0025] The inner wall of the first positioning ring 5 , the top of the first positioning groove 6 , the shaping groove 12 , the top of the movable mold 2 and the top of the ejector block 4 form a mold cavity.

[0026] Compared with the existing technology, the utility model provides an injection mold for manufacturing a leakage protection switch housing. The injection mold has a double positioning structure, which can ensure that the leakage protection switch housing is subjected to uniform force when demolding, avoid deformation or damage of the leakage protection switch housing during production, and ensure the product yield.

[0027] In the description of the present invention, it should be noted that the components are all universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or through conventional test methods. The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships described in the accompanying drawings, or are the directions or positional relationships in which the box of the present invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An injection mold for manufacturing a leakage protection switch housing, comprising a mold body, the mold body being mounted on a base of an injection molding machine, the mold body being composed of a fixed mold and a movable mold, the fixed mold being arranged on top of the movable mold, the fixed mold and the movable mold being mounted on the base via a slide rod, characterized in that: The mold body is also equipped with a double positioning structure; The dual positioning structure includes a first positioning structure for positioning between the fixed mold and the movable mold and a second positioning structure for positioning the ejector pin on the base.

2. The injection mold for manufacturing a leakage protection switch housing according to claim 1, characterized in that: The fixed mold is fixed on a slide rod vertically fixed on the base, the movable mold is slidably connected to the slide rod, and a sliding sleeve is provided between the movable mold and the slide rod.

3. The injection mold for manufacturing a leakage protection switch housing according to claim 2, characterized in that: The first positioning structure includes a first positioning ring and a first positioning groove. The first positioning ring is arranged on the top of the movable mold, and the first positioning groove is opened at the bottom of the fixed mold. The top of the first positioning ring is provided with an arc protrusion that matches the bottom of the first positioning groove. A plurality of injection tubes pass through the fixed mold and are connected to the first positioning groove.

4. The injection mold for manufacturing a leakage protection switch housing according to claim 3, characterized in that: The second positioning structure includes a second positioning ring and a second positioning groove. The second positioning ring is arranged at the bottom of the ejector block at the top of the ejector pin, and the second positioning groove is opened at the bottom of the installation groove that matches the ejector block at the top of the ejector hole.

5. The injection mold for manufacturing a leakage protection switch housing according to claim 4, characterized in that: A shaping groove is provided on the top of the movable mold, and the shaping groove surrounds the outside of the installation groove.

6. The injection mold for manufacturing a leakage protection switch housing according to claim 5, characterized in that: The inner wall of the first positioning ring, the top of the first positioning groove, the shaping groove, the top of the movable mold and the top of the ejector block form a mold cavity.

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