A hot water heater panel bending forming die with quick demolding

Abstract

The utility model relates to a kind of water heater panel bending forming die of quick demoulding including upper die holder and lower die holder, the bottom end of upper die holder is equipped with upper module, upper module bottom end is equipped with forming groove, lower die holder is equipped with the demoulding assembly matched with upper module, demoulding assembly includes center fixed block, side block and angle block, by the demoulding assembly of setting, and utilize the inclined surface sliding connection structure between each block contact surface, when driving top rod jacks angle block, can first drive four angle blocks along oblique central path movement and quickly separate product internal angle, and then through the cooperation of third, fourth inclined surface, four side blocks are synchronously shrunk to center, finally make the overall demoulding assembly's external dimensions quickly reduce, improve demoulding efficiency, fundamentally ensure the forming quality and good product rate of product.

Description

Technical Field

[0001] This utility model relates to the field of molding die technology, and in particular to a quick-release water heater panel bending molding die. Background Technology

[0002] In the manufacturing process of home appliances such as water heaters, the panel 500 is usually made of metal plate bent into a semi-frame structure with downward folded edges on all four sides by a mold. In the existing technology, the mold for this type of forming mostly adopts an integral punch or a simple segmented structure for the lower part. After bending and forming, the product will tightly wrap around the outside of the punch. Due to the clamping force and friction after the product is formed, when demolding vertically upward, the inner wall of the product, especially the four inner corners, will have severe scratches with the punch of the mold, resulting in scratches or even deformation on the surface of the product. This makes the demolding process extremely difficult and seriously affects production efficiency and product yield.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model discloses a quick-release water heater panel bending forming mold to solve the problems of clamping force and friction after product molding. During vertical upward demolding, the inner wall of the product, especially the four inner corners, will experience severe scraping with the mold punch, resulting in scratches or even deformation on the product surface. This makes the demolding process extremely difficult and seriously affects production efficiency and product yield.

[0005] The technical solution adopted in this utility model is as follows: A quick-release water heater panel bending forming mold, characterized in that it comprises: An upper mold base, wherein the bottom end of the upper mold base is provided with an upper module and the bottom end of the upper module is provided with a forming groove; A lower mold base, wherein a demolding assembly is provided on the lower mold base to cooperate with the upper mold base, the demolding assembly comprising: A central fixing block, wherein the four sides of the central fixing block are first inclined surfaces that are inclined towards the center; The side block has four sides arranged around the central fixed block. The side of each side block facing the central fixed block is a second inclined surface that matches the first inclined surface. The second inclined surface is slidably connected to the first inclined surface. The corner block has four corner blocks, which are respectively set in the space enclosed by the corners of two adjacent side blocks and the central fixed block. The side of each corner block facing the two adjacent side blocks is a third inclined surface, and the side of each side block facing the third inclined surface is a matching fourth inclined surface. The third inclined surface is slidably connected to the fourth inclined surface. A drive push rod is provided below each corner block on the lower mold base.

[0006] A further technical solution is that a plurality of first grooves are provided on the first inclined surface, and a first slider that slides in cooperation with the first grooves is provided on the second inclined surface.

[0007] A further technical solution is that a plurality of second sliding grooves are provided on the third inclined surface, and a second slider that slides in cooperation with the second sliding grooves is provided on the third inclined surface.

[0008] A further technical solution is that, during mold closing, the top surfaces of the central fixing block, the side block, and the corner block together form a continuous, flat forming surface.

[0009] A further technical solution is that a top block is fixedly provided at the top of the driving top rod, and a clearance groove is provided at the bottom of the corner block, with the top block and the clearance groove slidingly engaged.

[0010] A further technical solution is that the upper module includes an outer ring forming block and a pressure plate, and the bottom end of the outer ring forming block is provided with the forming groove; the bottom end of the upper mold base is provided with an elastic guide, and the bottom end of the elastic guide passes through the forming groove and connects to the pressure plate, and the pressure plate is located in the surrounding area of ​​the forming groove; During mold closing, the pressure plate first contacts and presses the panel against the outer ring molding block. Then, the outer ring molding block continues to press down, bending the four edges of the water heater panel downwards along the side of the pressure plate into the forming groove.

[0011] A further technical solution is that a guide member is provided between the upper mold base and the lower mold base, the guide member including a guide post fixed on one of them and a guide sleeve disposed on the other and slidingly engaged with the guide post.

[0012] A further technical solution is that the lower mold base is provided with a number of limiting rods, and the number of limiting rods are arranged around the demolding component, and their positions are configured to limit the panel blank placed on the top surface of the demolding component.

[0013] The beneficial effects of this utility model embodiment are as follows: (i) A quick-release water heater panel bending forming mold includes an upper mold base and a lower mold base. The bottom end of the upper mold base is provided with an upper module, and the bottom end of the upper module is provided with a forming groove. The lower mold base is provided with a demolding component that cooperates with the upper module. The demolding component includes a central fixing block, side blocks and corner blocks. Through the demolding component and the sliding connection structure of the inclined surfaces between the contact surfaces of each block, when the push rod lifts the corner block, it can first drive the four corner blocks to move along the inclined path towards the center and quickly detach from the inner corner of the product. Then, through the cooperation of the third and fourth inclined surfaces, it pushes the four side blocks to shrink synchronously towards the center, and finally the overall size of the demolding component is quickly reduced, improving the demolding efficiency and fundamentally ensuring the molding quality and yield of the product.

[0014] (ii) Furthermore, a top block is fixedly provided at the top of the drive rod, and a clearance groove is provided at the bottom of the corner block. The top block and the clearance groove are slidably engaged. Through the sliding engagement between the top block and the clearance groove, the vertical lifting motion of the drive rod is converted into the oblique motion required by the corner block. When the rod rises vertically, the top block slides relative to the corner block in the clearance groove. This sliding amount allows the corner block to move towards the center along an inclined trajectory while being vertically lifted, ensuring the smoothness and reliability of the mechanism's movement.

[0015] (III) Further, the upper module includes an outer ring forming block and a pressure plate, with a forming groove at the bottom of the outer ring forming block. An elastic guide is provided at the bottom of the upper mold base, with its bottom end passing through the forming groove and connecting to the pressure plate. The pressure plate is located within the surrounding area of ​​the forming groove. During mold closing, the pressure plate first contacts and presses the panel against the outer ring forming block. Then, the outer ring forming block continues to press down, bending the edges of the water heater panel downwards along the side of the pressure plate into the forming groove. During mold closing, the pressure plate first presses down on the center of the panel to form a stable support, and then the outer ring forming block presses down to complete the bending process. Sequential forming avoids displacement of the sheet material during bending, and the precise guidance of the panel edges by the side of the pressure plate ensures consistent folding angles and surface quality, preventing wrinkles and deformation defects caused by one-time pressing. Attached Figure Description

[0016] Figure 1 This is an isometric view of the panel in a quick-release water heater panel bending forming mold according to this utility model.

[0017] Figure 2 This is an isometric view of a water heater panel bending and forming mold for quick demolding according to this utility model.

[0018] Figure 3 This is a cross-sectional view of a water heater panel bending and forming mold for quick demolding according to this utility model.

[0019] Figure 4This is a front view schematic diagram of a water heater panel bending and forming mold for quick demolding according to the present invention.

[0020] In the picture: 100. Upper mold base; 101. Upper module; 200. Lower mold base; 201. Limiting rod; 300. Guide component; 400. Demolding assembly; 410. Center fixing block; 411. First slide groove; 420. Side block; 421. First slider; 422. Second slide groove; 430. Corner block; 431. Second slider; 500. Panel. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] First embodiment: A quick-release water heater panel bending forming mold includes an upper mold base 100 and a lower mold base 200. The lower end of the upper mold base 100 is provided with an upper module 101, and the lower end of the upper module 101 has a forming groove. Exemplarily, a guide member 300 is provided between the upper mold base 100 and the lower mold base 200. The guide member 300 includes a guide post fixed to one of the two mold bases and a guide sleeve slidably engaged with the guide post on the other mold base. A demolding assembly 400 is provided on the lower mold base 200 to cooperate with the upper module 101. The demolding assembly 400 includes a center fixing block 410, an edge block 420, and a corner block 430. Specifically, when the mold is closed, the top surfaces of the center fixing block 410, the edge block 420, and the corner block 430 together form a continuous, flat forming surface.

[0023] The four sides of the central fixing block 410 are first inclined surfaces that slope towards the center. There are four side blocks 420, arranged around the central fixing block 410. The side of each side block 420 facing the central fixing block 410 is a second inclined surface that matches the first inclined surface, and the second inclined surface is slidably connected to the first inclined surface. For example, the first inclined surface has several first grooves, and the second inclined surface has a first slider that slides in cooperation with the first grooves. There are four corner blocks 430, each located in the space enclosed by the corners of two adjacent side blocks 420 and the central fixing block 410. The side of each corner block 430 facing the two adjacent side blocks 420 is a third inclined surface, and the side of each side block 420 facing the third inclined surface is a matching fourth inclined surface, and the third inclined surface is slidably connected to the fourth inclined surface. For example, the third inclined surface has several second grooves, and the third inclined surface has a second slider that slides in cooperation with the second grooves. A drive ejector pin is provided on the lower mold base 200 below each corner block 430.

[0024] Furthermore, a top block is fixedly provided at the top of the drive rod, and a clearance groove is provided at the bottom of the corner block 430. The top block and the clearance groove are slidably engaged. Through the sliding engagement between the top block and the clearance groove, the vertical lifting motion of the drive rod is converted into the oblique motion required by the corner block 430. When the rod rises vertically, the top block slides relative to the corner block 430 within the clearance groove. This sliding amount allows the corner block 430 to move towards the center along an inclined trajectory while being vertically lifted, ensuring the smoothness and reliability of the mechanism's movement.

[0025] Furthermore, the upper module 101 includes an outer ring forming block and a pressure plate, with a forming groove at the bottom of the outer ring forming block. An elastic guide is provided at the bottom of the upper mold base 100, with its bottom end passing through the forming groove and connecting to the pressure plate. The pressure plate is located within the surrounding area of ​​the forming groove. During mold closing, the pressure plate first contacts and presses the panel 500 against the outer ring forming block. Then, the outer ring forming block continues to press down, bending the edges of the water heater panel 500 downwards along the side of the pressure plate into the forming groove. During mold closing, the pressure plate first presses down on the center of the panel 500 to form stable support, and then the outer ring forming block presses down to complete the bending process. Sequential forming avoids displacement of the sheet material during bending, and the precise guidance of the panel 500's edges by the side of the pressure plate ensures consistent folding angles and surface quality, preventing wrinkles and deformation defects caused by one-time pressing.

[0026] Furthermore, the lower die base 200 is provided with a plurality of limiting rods 201, which are arranged around the demolding assembly 400 and are configured to limit the peripheral movement of the panel 500 blank placed on the top surface of the demolding assembly 400. The limiting rods 201 form a positioning boundary during the placement stage of the panel 500 blank, limiting any tendency of the sheet metal to move during the stamping process.

[0027] In operation, this embodiment is as follows: When the mold is closed, the upper mold base 100 moves downward, and the pressure plate at its bottom first contacts and is pressed against the panel 500 blank positioned by the limiting rod 201. Then, the outer ring pressing block of the upper module 101 continues to press down, bending the edges of the panel 500 downward along the side of the pressure plate into the forming groove, so that the panel 500 is tightly attached to the continuous forming surface formed by the center fixing block 410, the side block 420 and the top surface of the corner block 430 to complete the forming. When the mold is opened, the upper mold base 100 rises and resets, and then the driving ejector of the lower mold base 200 pushes the corner block 430 upward. The relief groove at the bottom of the corner block 430 slides relative to the top block, forcing the corner block 430 to move along the inclined path towards the center. Then, through the sliding cooperation of the third inclined surface and the fourth inclined surface, the side block 420 is pushed to shrink towards the center along the first inclined surface, causing the overall size of the demolding assembly 400 to shrink rapidly, thereby completely separating from the inner wall of the formed panel 500.

[0028] In this embodiment, the four corner blocks 430 are first driven to move along an oblique path towards the center and quickly detach from the inner corner of the product. Then, through the cooperation of the third and fourth inclined surfaces, the four side blocks 420 are pushed to shrink towards the center in sync. Finally, the overall size of the demolding assembly 400 is rapidly reduced, improving demolding efficiency and fundamentally ensuring the molding quality and yield of the product.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A quick-release water heater panel bending forming mold, characterized in that, include: An upper mold base, wherein the bottom end of the upper mold base is provided with an upper module and the bottom end of the upper module is provided with a forming groove; A lower mold base, wherein a demolding assembly is provided on the lower mold base to cooperate with the upper mold base, the demolding assembly comprising: A central fixing block, wherein the four sides of the central fixing block are first inclined surfaces that are inclined towards the center; The side block has four sides arranged around the central fixed block. The side of each side block facing the central fixed block is a second inclined surface that matches the first inclined surface. The second inclined surface is slidably connected to the first inclined surface. The corner block has four corner blocks, which are respectively set in the space enclosed by the corners of two adjacent side blocks and the central fixed block. The side of each corner block facing the two adjacent side blocks is a third inclined surface, and the side of each side block facing the third inclined surface is a matching fourth inclined surface. The third inclined surface is slidably connected to the fourth inclined surface. A drive push rod is provided below each corner block on the lower mold base.

2. The quick-release water heater panel bending forming mold according to claim 1, characterized in that: The first inclined surface has a plurality of first sliding grooves, and the second inclined surface has a first slider that slides in cooperation with the first sliding grooves.

3. The quick-release water heater panel bending forming mold according to claim 1, characterized in that: A plurality of second sliding grooves are provided on the third inclined surface, and a second slider is provided on the third inclined surface to slide in cooperation with the second sliding grooves.

4. The quick-release water heater panel bending forming mold according to claim 1, characterized in that: When the mold is closed, the top surfaces of the center fixing block, the side block, and the corner block together form a continuous flat forming surface.

5. The quick-release water heater panel bending forming mold according to claim 1, characterized in that: The top end of the drive rod is fixedly provided with a top block, and the bottom end of the corner block is provided with a clearance groove. The top block and the clearance groove are slidably engaged.

6. The quick-release water heater panel bending forming mold according to claim 1, characterized in that: The upper module includes an outer ring forming block and a pressure plate. The bottom end of the outer ring forming block is provided with the forming groove. The bottom end of the upper mold base is provided with an elastic guide. The bottom end of the elastic guide passes through the forming groove and connects to the pressure plate. The pressure plate is located in the surrounding area of ​​the forming groove. During mold closing, the pressure plate first contacts and presses the panel against the outer ring molding block. Then, the outer ring molding block continues to press down, bending the four edges of the water heater panel downwards along the side of the pressure plate into the forming groove.

7. The quick-release water heater panel bending forming mold according to claim 1, characterized in that: A guide member is provided between the upper mold base and the lower mold base. The guide member includes a guide post fixed on one of them and a guide sleeve disposed on the other and slidingly engaged with the guide post.

8. The quick-release water heater panel bending forming mold according to claim 1, characterized in that: The lower mold base is provided with a number of limiting rods, which are arranged around the demolding component and are configured to limit the panel blank placed on the top surface of the demolding component.

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