Automatic water gap cutting die for switch box

Abstract

The utility model relates to the technical field of molds, in particular to an automatic water gap cutting mold for a switch box, which comprises an upper mold unit and a lower mold unit, a return component is arranged in the lower mold unit, and a demolding component and a rod cutting component are arranged on the return component; wherein the demolding assembly extends to a mold core of the lower mold unit, and the cutting rod assembly is arranged at an injection molding opening of the lower mold unit; according to the utility model, the innovative cutting rod assembly is integrated in the mold, so that the automatic water gap cutting after the mold splitting stage in the injection molding process of switch box products is realized, the mechanism effectively improves the production efficiency, the product can be automatically separated from the water gap after the water gap is cut, the subsequent manual secondary processing is not needed, and the production cost is reduced. In addition, the design between the cutting rod assembly and the demolding mechanism adopts a delayed motion structure, and it is ensured that no interference is caused to product demolding in the water gap cutting process.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an automatic water-cutting mold for a switch box. Background Art

[0002] With the development of modern society and the advancement of science and technology, switch box products play a vital role in various electronic devices and household appliances. Switch boxes are mainly used for the installation of load-bearing panels and are generally embedded or externally mounted on the wall. The popular switch box products on the market are mainly manufactured using injection molding technology. Through injection molding, they can be formed in one step and have the advantages of firm structure, good sealing and easy installation.

[0003] However, there are still some problems in the injection molding process of existing switch box products. For example, in the current injection molding process, the mold generally adopts the side injection molding process. After the product is ejected from the mold, a sprue will be formed at the injection port of the switch box product. The existing technology usually adopts subsequent manual cutting of the sprue. This method not only has high labor costs, but also low production efficiency. Based on this, in order to further optimize the convenience of injection molding of existing switch box products, we propose a switch box automatic sprue cutting mold. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose an automatic water outlet mold for a switch box.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A switch box automatic water outlet mold is designed, comprising an upper mold unit and a lower mold unit, wherein a return assembly is provided in the lower mold unit, and a demoulding assembly and a cutting rod assembly are provided on the return assembly;

[0007] Wherein, the demoulding assembly extends to the mold core of the lower mold unit, and the cutting rod assembly is arranged at the injection port of the lower mold unit;

[0008] A delay structure is provided between the demoulding assembly and the return assembly, and the delay structure is designed to control the delayed movement of the demoulding assembly after the cutting rod assembly is actuated.

[0009] Furthermore, the return assembly includes a guide column inserted into the lower mold unit, an ejector plate is movably connected to the lower mold unit, the bottom of the guide column is fixedly connected to the ejector plate, and a spring is provided between the ejector plate and the lower mold unit.

[0010] Furthermore, the ejector plate includes an upper plate and a lower plate connected by fasteners;

[0011] The demoulding components are a plurality of ejector pins distributed between the upper plate and the lower plate.

[0012] Furthermore, the delay structure is a stopper passed through the lower plate, a step hole is provided on the end face of the lower plate, a protrusion is fixedly mounted on the upper end of the stopper, and the protrusion slides with the upper end of the step hole.

[0013] Furthermore, a locking protrusion is fixedly mounted on the bottom of the ejector pin, and a driving groove adapted to the locking protrusion is formed on the bottom of the upper plate.

[0014] Furthermore, the cutting rod assembly is a cutting rod clamped and fixed between the upper plate and the lower plate, and the top of the cutting rod has a blade portion.

[0015] The utility model proposes an automatic sprue cutting mold for a switch box, which has the following beneficial effects: the utility model integrates an innovative cutting rod assembly inside the mold, thereby realizing automatic sprue cutting after the demolding stage during the injection molding process of switch box products. This mechanism effectively improves production efficiency, because after the sprue is cut, the product can be automatically separated from the sprue without the need for subsequent manual secondary processing, thereby significantly reducing labor costs. In addition, the design between the cutting rod assembly and the demolding mechanism adopts a delayed motion structure, which ensures that there will be no interference with product demolding during the sprue cutting process, thereby ensuring the stability of the demolding operation and the convenience of sprue cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the ejector plate structure of the present utility model;

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A;

[0019] Figure 4 This is a schematic structural diagram of the cutting rod assembly of the present utility model.

[0020] In the figure: 1. Upper mold unit; 2. Lower mold unit; 21. Mold core; 3. Return assembly; 31. Guide pin; 32. Ejector plate; 321. Upper plate; 322. Lower plate; 323. Step hole; 324. Boss; 33. Spring; 4. Demolding assembly; 5. Cutting rod assembly; 51. Blade; 6. Delay structure; 61. Raised portion. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-4 This is an embodiment of the present invention, which discloses a switch box automatic water outlet mold. Specifically, the mold includes an upper mold unit 1 and a lower mold unit 2. The composition of the upper mold unit 1 and the lower mold unit 2 is well understood by those skilled in the art. For example, the upper mold unit 1 generally includes an upper fixing plate, an upper mold base, a mold core, and a heat dissipation pipeline. The specific structure can adopt the existing technical solution, which will not be described in detail here.

[0023] It should be noted that, in this embodiment, a return assembly 3 is provided in the lower mold unit 2, and a demoulding assembly 4 and a cutting rod assembly 5 are provided on the return assembly 3;

[0024] The demoulding assembly 4 extends to the mold core 21 of the lower mold unit 2, and the cutting rod assembly 5 is arranged at the injection port of the lower mold unit 2;

[0025] A delay structure 6 is provided between the demoulding assembly 4 and the return assembly 3 , and the delay structure 6 is designed to control the delayed movement of the demoulding assembly 4 after the cutting rod assembly 5 is actuated.

[0026] In some embodiments, the return assembly 3 in the present invention includes a guide column 31 inserted into the lower mold unit 2, and an ejector plate 32 is movably connected to the lower mold unit 2. The bottom of the guide column 31 is fixedly connected to the ejector plate 32, and a spring 33 is arranged between the ejector plate 32 and the lower mold unit 2.

[0027] Specifically, four guide posts 31 are provided in this embodiment, and the guide posts 31 are used to contact the upper mold unit 1. When the mold is closed, the guide posts 31 are squeezed by the upper mold unit 1 and move downward, thereby pushing the ejector plate 32 to move downward. Similarly, when the mold is separated, under the push of the spring 33, the ejector plate 32 can drive the demolding assembly 4 and the cutting rod assembly 5 to move upward, so as to realize the action of first shearing the water outlet of the product and then ejecting it.

[0028] Based on the above embodiment, the ejector plate 32 in the present invention includes an upper plate 321 and a lower plate 322 connected by fasteners. The fasteners are configured as bolts. Of course, in this embodiment, the sliding of the ejector plate 32 is guided by the guide rods in the lower mold unit 2 to achieve up and down movement.

[0029] The demolding assembly 4 is a plurality of ejector pins distributed between the upper plate 321 and the lower plate 322 . Specifically, in this embodiment, the top of the ejector pins extends into the interior of the mold core 21 to eject the product in the mold core 21 outward.

[0030] Furthermore, the delay structure 6 described in this embodiment is a stop member penetrated through the lower plate 322, and a step hole 323 is opened on the end face of the lower plate 322. A protrusion 61 is fixedly installed on the upper end of the stop member, and the protrusion 61 slides with the upper end of the step hole 323. That is to say, the stop member and the protrusion 61 described in this embodiment form a T-shaped structure together, which slides in the step hole 323 of the lower plate 322.

[0031] In addition, a locking protrusion 324 is fixedly installed at the bottom of the ejector, and a driving groove adapted to the locking protrusion 324 is opened at the bottom of the upper plate 321. The driving groove is used to drive the entire ejector downward after contacting the locking protrusion 324. That is, through the design of the step hole 323, the stopper will fall downward during mold separation, and the ejector will move downward to contact the stopper and be subjected to force before realizing the delayed upward lifting action.

[0032] It should be noted that the cutting rod assembly 5 in the present invention is a cutting rod clamped and fixed between the upper plate 321 and the lower plate 322, and the top of the cutting rod has a blade portion 51, that is, there is no movable space between the cutting rod and the ejector plate 32 in this embodiment, so it can move synchronously with the ejector plate 32 to achieve the first cutting of the product's sprue during mold separation, and then extend and start the ejector pin to eject the product from the mold core 21 to achieve demolding.

[0033] During specific operation, when the mold is closed, the entire ejector plate 32 moves downward under the resistance of the upper mold unit 1. At this time, when the stopper inside the lower plate 322 resists the inner bottom surface of the lower mold unit 2, the stopper stops moving until it resists the locking protrusion 324 at the bottom of the ejector pin, thereby fixing the position of the ejector pin. When demolding, since there is no movable space between the rod and the ejector plate 32, it can move synchronously with the ejector plate 32 to achieve the first cutting of the product's sprue when the mold is separated. In this process, the stopper slides inside the step hole 323, and the ejector pin slides in the upper plate 321 until the stopper moves into place. At this time, the ejector pin receives the limiting force of the stopper and realizes the upward lifting movement following the ejector plate 32 to achieve the demolding of the product.

[0034] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A switch box automatic water outlet mold, comprising an upper mold unit (1) and a lower mold unit (2), characterized in that: A return assembly (3) is provided in the lower mold unit (2), and a demoulding assembly (4) and a cutting rod assembly (5) are provided on the return assembly (3); The demoulding assembly (4) extends to the mold core (21) of the lower mold unit (2), and the cutting rod assembly (5) is arranged at the injection port of the lower mold unit (2); A delay structure (6) is provided between the demoulding assembly (4) and the return assembly (3), and the delay structure (6) is designed to control the delayed movement of the demoulding assembly (4) after the cutting rod assembly (5) is actuated.

2. The automatic water-cutting die for a switch box according to claim 1, characterized in that: The return assembly (3) comprises a guide column (31) inserted into the lower die unit (2), an ejector plate (32) is movably connected to the lower die unit (2), the bottom of the guide column (31) is fixedly connected to the ejector plate (32), and a spring (33) is provided between the ejector plate (32) and the lower die unit (2).

3. The automatic water-cutting die for a switch box according to claim 2, characterized in that: The ejection plate (32) includes an upper plate (321) and a lower plate (322) connected by fasteners; The demoulding component (4) is a plurality of ejector pins distributed between the upper plate (321) and the lower plate (322).

4. The automatic water-cutting die for a switch box according to claim 3, characterized in that: The delay structure (6) is a stopper that is inserted into the lower plate (322). A step hole (323) is provided on the end surface of the lower plate (322). A protrusion (61) is fixedly mounted on the upper end of the stopper, and the protrusion (61) slides with the upper end of the step hole (323).

5. The automatic water-cutting die for a switch box according to claim 4, characterized in that: A clamping protrusion (324) is fixedly mounted on the bottom of the ejector pin, and a driving groove adapted to the clamping protrusion (324) is provided on the bottom of the upper plate (321).

6. The automatic water-cutting die for a switch box according to claim 3, characterized in that: The cutting rod assembly (5) is a cutting rod clamped and fixed between the upper plate (321) and the lower plate (322), and the top of the cutting rod has a blade portion (51).

Images