Load switch shell forming device

Abstract

The utility model relates to the field of electrical equipment manufacturing, and particularly discloses a load switch shell forming device. The forming device comprises a machine body, a lower mold installed at the lower end of the machine body, a fixed mold arranged on the upper side of the lower mold and a movable mold arranged on one side of the fixed mold, the lower end of the machine body is fixedly connected with two first push rods, the upper ends of piston rods of the two first push rods are fixedly connected with a top plate, and the lower side of the lower mold is fixedly connected with the upper side of the top plate. One end of the machine body is fixedly connected with a second push rod, one end of a piston rod of the second push rod is fixedly connected with a mounting plate for mounting the movable mold, and the side, away from the movable mold, of the fixed mold is fixedly connected with one side of the machine body; the upper end of the machine body is fixedly connected with a third push rod for adjusting the position of the injection molding assembly. According to the mold assembly and disassembly device, mold assembly and mold disassembly of the forming mold can be rapidly completed, operation of workers is facilitated, and therefore the forming efficiency and the demolding effect of the load switch shell can be improved.

Description

Technical Field

[0001] This application relates to the field of electrical equipment manufacturing, and in particular to a load switch housing molding apparatus. Background Technology

[0002] A load switch is an electrical device whose function falls between that of a high-voltage circuit breaker and a high-voltage disconnector. The load switch housing isolates live parts from the external environment, protecting internal components from mechanical shock, dust, moisture, and other environmental factors, thereby extending the equipment's service life. Load switch housings are typically manufactured using a molding apparatus. The process involves melting the raw material and then injecting it into a mold within the molding apparatus for injection molding.

[0003] In the prior art, the molding device usually uses the method of closing the upper mold and the lower mold to complete the molding of the load switch housing. Since the contact area between the mold and the molded load switch housing is large, the housing may be deformed or damaged during the demolding process, which will affect the molding effect of the load switch housing. Utility Model Content

[0004] To improve the demolding effect of load switch housings, this application provides a load switch housing molding apparatus.

[0005] The load switch housing forming device provided in this application adopts the following technical solution:

[0006] A load switch housing molding device includes a body, a lower mold mounted on the lower end of the body, a fixed mold disposed on the upper side of the lower mold, and a movable mold disposed on one side of the fixed mold. Two first push rods are fixedly connected to the lower end of the body, and a top plate is fixedly connected to the upper end of the piston rods of the two first push rods. The lower side of the lower mold is fixedly connected to the upper side of the top plate. A second push rod is fixedly connected to one end of the body, and an mounting plate for mounting the movable mold is fixedly connected to one end of the piston rod of the second push rod. The side of the fixed mold opposite to the movable mold is fixedly connected to one side of the body. An injection molding assembly for pouring raw materials is disposed on the upper side of the fixed mold and the movable mold. A third push rod for adjusting the position of the injection molding assembly is fixedly connected to the upper end of the body.

[0007] By adopting the above technical solution, through the design of the lower mold, fixed mold, and moving mold, the contact area between a single mold and the load switch housing can be reduced, thereby improving the demolding effect and demolding efficiency of the load switch housing; secondly, it can quickly complete the mold closing and opening of the forming mold, and is convenient for operators to operate, thereby improving the forming efficiency of the load switch.

[0008] Optionally, a core seat is fixedly connected to the upper surface of the mold, and both the fixed mold and the moving mold have molding cavities at their lower ends that are sleeved on the outside of the core seat, and the two molding cavities are connected.

[0009] By adopting the above technical solution, the raw materials can flow and distribute better in the molding cavity during the molding process of the load switch housing, thereby ensuring that the internal structure of the housing after molding is more complete and uniform, and improving the molding quality of the housing.

[0010] Optionally, a plurality of positioning rods are fixedly connected to the upper side of the lower mold, and a positioning groove for the positioning rods to be inserted is provided on the lower side of the fixed mold.

[0011] By adopting the above technical solution, it can be ensured that the relative position of the fixed mold and the lower mold is more accurate when they are closed, avoiding molding defects caused by mold position deviation, such as inaccurate shell size and uneven surface, improving molding accuracy and quality, and reducing the risk of demolding difficulties or shell damage caused by inaccurate mold alignment.

[0012] Optionally, a plurality of insert rods are fixed on one side of the fixed mold, and a plurality of slots for inserting the insert rods are provided on one side of the moving mold.

[0013] By adopting the above technical solution, the tightness between the fixed mold and the moving mold after mold closing can be guaranteed, reducing gaps caused by loosening between molds during the molding process, preventing raw materials from leaking out of the gaps, ensuring that the raw materials in the molding cavity can be fully filled, improving the molding quality and integrity of the shell, and also helping to reduce the damage to the shell caused by unstable fit between molds during demolding.

[0014] Optionally, the injection molding assembly includes a positioning frame, a flow divider, and an injection tube. The upper end of the positioning frame is fixedly connected to the lower end of the piston rod of the third push rod. The injection tube is fixedly connected to the lower end of the positioning frame. The flow divider is installed on the upper end of the injection tube and fixedly connected to the positioning frame. An injection port for inserting the lower end of the injection tube is provided between the fixed mold and the moving mold, and the injection port communicates with the molding cavity.

[0015] By adopting the above technical solutions, it can be ensured that the raw materials can be injected into the molding cavity evenly and stably during the injection molding process; the distributor can divide the raw materials, so that the raw materials can be distributed more evenly to various parts of the molding cavity, avoiding local defects in the shell caused by uneven injection molding, improving molding efficiency and quality, and providing a better foundation for subsequent demolding.

[0016] Optionally, limiting rods are provided through the inner walls of the four corners of the positioning frame, and the upper ends of the four limiting rods are fixedly connected to the upper end of the machine body.

[0017] By adopting the above technical solution, excessive offset or shaking of the positioning frame is prevented during the movement of the injection molding component, thereby ensuring that the injection tube can be accurately inserted into the injection port and ensuring the stability and accuracy of the injection molding process.

[0018] Optionally, two slide rods are fixedly connected to the upper end of the positioning frame, and the outer wall of the slide rods is slidably connected to the upper inner wall of the machine body.

[0019] By adopting the above technical solutions, it is possible to reduce the shaking or positional deviation of injection molded components during movement, and reduce defects in the shell molding caused by the unstable position of injection molded components.

[0020] Optionally, both sides of the positioning frame are provided with fixing rods that are fixedly connected to the machine body, and the lower side of the fixing rods is fixedly connected with a slide rail. The upper end of the mounting plate is provided with a slide groove that is slidably connected to the outer wall of the slide rail.

[0021] By adopting the above technical solution, a stable guide can be provided for the movement of the moving mold, enabling it to move smoothly and accurately during mold opening and closing. This helps ensure the fitting accuracy between molds and reduces the possibility of deformation or damage to the shell during demolding due to poor mold fit.

[0022] In summary, this application has the following beneficial effects:

[0023] 1. This application can quickly complete the mold closing and opening of the molding die, and is easy for operators to operate, thereby significantly improving the molding efficiency and demolding effect of the load switch housing.

[0024] 2. This application reduces the contact area between a single mold and the shell by combining multiple molds, ensuring the integrity and uniformity of the internal structure of the shell after molding, improving the overall molding quality, and enhancing demolding efficiency and effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the load switch housing forming device according to an embodiment of this application;

[0026] Figure 2 This is a front view of the load switch housing forming apparatus according to an embodiment of this application;

[0027] Figure 3 yes Figure 2 Cross-sectional view along line AA;

[0028] Figure 4 This is a schematic diagram of the structure of the lower mold according to an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of the fixed mold according to an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the structure of the moving mold according to an embodiment of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. First push rod; 21. Top plate; 3. Lower mold; 31. Core seat; 32. Positioning rod; 4. Fixed mold; 41. Positioning groove; 42. Insert rod; 5. Moving mold; 51. Slot; 6. Injection port; 7. Molding cavity; 8. Second push rod; 81. Mounting plate; 811. Slide groove; 9. Injection assembly; 91. Positioning frame; 92. Diverter; 93. Injection tube; 94. Limiting rod; 95. Slide rod; 10. Third push rod; 11. Fixing rod; 12. Slide rail. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0033] This application discloses a load switch housing forming apparatus.

[0034] Reference Figure 1 The load switch housing forming device includes a body 1, which has a square frame as its core structure. Various auxiliary devices for the operation of the internal mechanisms of the body 1, such as a PLC controller and electrical box, are installed on the outside of the body 1. Two first push rods 2 are fixedly installed at the lower end of the body 1. A top plate 21 is fixedly connected to the upper end of the piston rods of the two first push rods 2. A lower mold 3 is fixedly connected to the surface of the top plate 21, and a core seat 31 is fixedly connected to the upper side of the lower mold 3. The first push rods 2 are used to push the top plate 21, causing the lower mold 3 to move up and down. Both the moving mold 5 and the fixed mold 4 have forming cavities 7 at their lower ends, which are fitted onto the outside of the core seat 31. The cooperation between the core seat 31 and the forming cavity 7 ensures the formed shape of the housing.

[0035] A fixed mold 4 is fixedly connected to one side of the machine body 1, and the fixed mold 4 is positioned directly above one end of the lower mold 3. A second push rod 8 is fixedly connected to the inner wall of the other end of the machine body 1. A mounting plate 81 is fixedly connected to one end of the piston rod of the second push rod 8. A movable mold 5 is fixedly connected to one side of the mounting plate 81. The second push rod 8 is used to push the mounting plate 81 to move the movable mold 5 left and right until one side of the movable mold 5 fits against one side of the fixed mold 4, thus completing the mold closing of the movable mold 5 and the fixed mold 4.

[0036] The upper end of the body 1 is fixedly connected to a third push rod 10, and the lower end of the piston rod of the third push rod 10 is fixedly connected to an injection molding assembly 9. The injection molding assembly 9 is used to inject the raw material of the load switch housing into the space between the lower mold 3, the fixed mold 4 and the moving mold 5. After the raw material cools and solidifies, the molding of the load switch housing is completed.

[0037] In use, firstly, the second push rod 8 is activated to push the mounting plate 81, which in turn moves the moving mold 5 until one side of the moving mold 5 is in contact with the fixed mold 4. At this time, the two first push rods 2 are activated to push the top plate 21 and the lower mold 3 upward until the upper side of the lower mold 3 is in contact with the lower bottom wall of the moving mold 5 and the fixed mold 4, so that the core seat 31 is placed in the molding cavity 7, completing the mold closing. Then, the third push rod 10 is activated to push the injection molding assembly 9 into the upper side of the fixed mold 4 and the moving mold 5. At this time, the injection molding assembly 9 is activated to inject the raw material into the mold until the raw material fills the molding groove between the molds. Finally, wait for the raw material to cool and solidify. According to the above steps, the mold separation between the molds is completed by reversing the operation. Then, the formed load switch housing is taken out, completing the initial production of the load switch housing.

[0038] refer to Figure 2 , Figure 3 Two fixed rods 11 are fixedly connected to the upper end of the machine body 1, and a slide rail 12 is fixedly connected to the lower surface of each fixed rod 11. The upper end of the mounting plate 81 is provided with two slide grooves 811 that are slidably connected to the outer wall of the two slide rails 12. The cooperation between the slide rails 12 and the slide grooves 811 is used to ensure the stability of the movement of the mounting plate 81 and prevent the mounting plate 81 from being misaligned or shaking during the movement, thereby ensuring the stability of the connection between the moving mold 5 and the fixed mold 4 and the lower mold 3.

[0039] refer to Figure 2 , Figure 3 The injection molding assembly 9 includes a positioning frame 91, a distributor 92, and multiple injection tubes 93. The positioning frame 91 consists of two fixed plates and two connecting rods fixedly connected between the fixed plates. The upper fixed plate is fixedly connected to the lower end of the piston rod of the third push rod 10. Two sliding rods 95 are fixedly connected to the upper surface of the upper fixed plate. The sliding rods 95 are used to ensure the stability of the third push rod 10 pushing the positioning frame 91. Limiting rods are provided through the inner walls of the four corners of the two fixed plates, and the upper ends of the multiple limiting rods 94 are fixedly connected to the upper end of the machine body 1. When the third push rod 10 pushes the positioning frame 91 to move, it moves along the limiting rods 94 to ensure the stability of the positioning frame 91. The distributor 92 is fixedly installed on the upper surface of the lower fixed plate, and the multiple injection tubes 93 are fixedly connected to the lower surface of the lower fixed plate. The injection tubes 93 pass through the lower fixed plate and communicate with the distributor 92. The distributor 92 is connected to the storage tank via a conveying pipe, and the storage tank is fixedly connected to a pump for conveying the raw materials for the shell. An injection port 6 is provided between the fixed mold 4 and the moving mold 5 for the lower end of the injection tube 93 to be inserted.

[0040] When the current mold 3, moving mold 5 and fixed mold 4 are closed, the third push rod 10 pushes the positioning frame 91 down along the limiting rod 94 until the injection tube 93 is inserted into the injection port 6. At this time, the pump is started to inject the raw material in the storage tank into the distributor 92 through the delivery pipe. Then the distributor 92 diverts the raw material to the injection tube 93, so that the raw material is evenly injected into the mold, and the casting of the shell material is completed.

[0041] refer to Figure 4 , Figure 5 and Figure 6 Two positioning rods 32 are fixedly connected to each of the two corners of the lower mold 3 near the fixed mold 4. The lower surface of the fixed mold 4 has positioning grooves 41 for the positioning rods 32 to insert into. When the positioning rods 32 are inserted into the positioning grooves 41, they ensure the stability of the connection between the lower mold 3 and the fixed mold 4, preventing misalignment. Multiple insertion rods 42 are fixedly connected to the side of the fixed mold 4 near the moving mold 5. The side of the moving mold 5 near the fixed mold 4 has slots 51 for the insertion rods 42 to insert into, ensuring stable contact between the moving mold 5 and the fixed mold 4 and improving the molding effect of the shell.

[0042] The implementation principle of the load switch housing molding device in this application embodiment is as follows: In use, firstly, the second push rod 8 is activated to push the mounting plate 81 and the moving mold 5 to move, causing the insert rod 42 to insert into the inner wall of the slot 51 until one side of the moving mold 5 is in contact with one side of the fixed mold 4; then, the two first push rods 2 are activated to push the top plate 21 and the lower mold 3 upwards until the upper side of the lower mold 3 is in contact with the lower bottom wall of the moving mold 5 and the fixed mold 4, so that the core seat 31 is placed in the molding cavity 7, completing the mold closing between the lower mold 3, the fixed mold 4, and the moving mold 5; then, the third push rod 10 is activated to push the positioning frame 91 downwards until the injection molding... The tube 93 is inserted into the injection port 6; at this time, the pump is started to guide the raw material inside the storage tank to the distributor 92, and the raw material is evenly injected into the molding cavity 7 of the mold by multiple injection tubes 93 until the raw material fills the space between the molding cavity 7 and the core seat 31, and the casting of the raw material ends. At the same time, the third push rod 10 retracts, driving the positioning frame 91 back to its original position; finally, wait for the raw material in the mold to solidify and form, and then control the second push rod 8 to retract, so that the moving mold 5 is separated from the fixed mold 4 and the lower mold 3. Then control the two first push rods 2 to retract, so that the lower mold 3 is separated from the fixed mold 4. Then remove the formed load switch housing to complete the production of the load switch housing.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A load switch housing forming device, comprising a body (1), a lower mold (3) installed at the lower end of the body (1), a fixed mold (4) disposed on the upper side of the lower mold (3), and a movable mold (5) disposed on one side of the fixed mold (4), characterized in that: The lower end of the machine body (1) is fixedly connected to two first push rods (2), and the upper end of the piston rods of the two first push rods (2) is fixedly connected to a top plate (21). The lower side of the lower mold (3) is fixedly connected to the upper side of the top plate (21). One end of the machine body (1) is fixedly connected to a second push rod (8), and one end of the piston rod of the second push rod (8) is fixedly connected to an mounting plate (81) for installing the moving mold (5). The side of the fixed mold (4) away from the moving mold (5) is fixedly connected to one side of the machine body (1). The upper side of the fixed mold (4) and the moving mold (5) is provided with an injection molding assembly (9) for pouring raw materials. The upper end of the machine body (1) is fixedly connected to a third push rod (10) for adjusting the position of the injection molding assembly (9).

2. The load switch housing forming device according to claim 1, characterized in that: The core seat (31) is fixedly connected to the upper surface of the mold. The lower ends of the fixed mold (4) and the moving mold (5) are both provided with forming cavities (7) that are sleeved on the outside of the core seat (31) and the two forming cavities (7) are connected.

3. The load switch housing forming device according to claim 1, characterized in that: The lower mold (3) is fixedly connected to a plurality of positioning rods (32), and the lower mold (4) is provided with a positioning groove (41) for the positioning rods (32) to be inserted.

4. The load switch housing forming device according to claim 1, characterized in that: The fixed mold (4) has multiple insert rods (42) fixed on one side, and the moving mold (5) has multiple slots (51) for inserting the insert rods (42) on one side.

5. The load switch housing forming device according to claim 1, characterized in that: The injection molding assembly (9) includes a positioning frame (91), a flow divider (92), and an injection tube (93). The upper end of the positioning frame (91) is fixedly connected to the lower end of the piston rod of the third push rod (10). The injection tube (93) is fixedly connected to the lower end of the positioning frame (91). The flow divider (92) is installed on the upper end of the injection tube (93) and fixedly connected to the positioning frame (91). An injection port (6) for inserting the lower end of the injection tube (93) is provided between the fixed mold (4) and the moving mold (5), and the injection port (6) communicates with the molding cavity (7).

6. The load switch housing forming apparatus according to claim 5, characterized in that: The positioning frame (91) has four corner inner walls with limiting rods (94) inserted through them, and the upper ends of the four limiting rods (94) are fixedly connected to the upper end of the body (1).

7. The load switch housing forming apparatus according to claim 5, characterized in that: The upper end of the positioning frame (91) is fixedly connected to two slide rods (95), and the outer wall of the slide rods (95) is slidably connected to the upper inner wall of the body (1).

8. The load switch housing forming apparatus according to claim 5, characterized in that: The positioning frame (91) is provided with a fixing rod (11) on both sides, which is fixedly connected to the body (1). The lower side of the fixing rod (11) is fixedly connected to the slide rail (12). The upper end of the mounting plate (81) is provided with a slide groove (811) that is slidably connected to the outer wall of the slide rail (12).

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