Special device for taking loose piece after casting of high-voltage conductor casting

Abstract

The utility model discloses a special device for taking a loose piece after casting of a high-voltage conductor casting. The special device comprises a positioning module and a pressing module positioned right above the positioning module, the positioning module comprises a bottom plate; a positioning base for positioning the lower end of the casting is arranged in the middle of the bottom plate; the positioning base comprises a front side wall, a rear side wall, a left side wall and a right side wall, and the front side wall, the rear side wall, the left side wall and the right side wall of the positioning base define an open groove capable of containing the middle of the lower end of a casting on a bottom plate. The inner side faces of the four side walls of the open groove are inclined faces matched with the middle of the lower end of the casting in shape. The pressing module comprises an upper connecting plate, and pressing blocks in one-to-one correspondence with upper movable blocks of the casting are arranged at the lower end of the upper connecting plate; the two ends of the pressing block extend downwards to form pressing heads in butt joint with the movable blocks, and V-shaped open grooves corresponding to the movable blocks are formed in the bottoms of the pressing heads. And uniform stress of the loose piece is ensured, the loose piece is taken out stably, and the service life of the metal loose piece is well prolonged. Meanwhile, the casting quality is guaranteed, and the labor intensity of operators is relieved.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, specifically to a special device for removing loose blocks after casting high-voltage conductor castings. Background Technology

[0002] High-voltage conductor castings have extremely thick walls and cannot tolerate pinhole defects. To ensure casting quality, sand cores cannot be used for forming; instead, metal blocks must be used. Since the blocks are partially obscured by the lower mold within the cavity, they can only be removed after the mold is opened, making hydraulic cylinder extraction impossible. Existing methods for removing casting mold blocks mainly include manual hammering and crane-assisted removal. Manual hammering is particularly time-consuming and labor-intensive, requiring dozens of repeated hammerings to remove a single block. When the surface quality of the block is poor, a significant amount of time is spent removing it, resulting in extremely low labor efficiency. Furthermore, the casting is difficult to place and may cause injury or burns to the operator. Furthermore, manual hammering can only strike one side, failing to apply force to the center of the movable block. This can easily damage the block, rendering it unusable for extended periods, and can also damage or deform the casting. While crane-assisted removal of the movable block is suitable when it's located on the upper surface of the sand mold or core and the lifting ring is exposed, this method requires crane resources, has limited application, and the movable block is prone to damage, affecting its lifespan. Currently, there is no particularly efficient and convenient device for removing movable blocks from high-voltage conductor castings. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a special device for removing loose blocks after casting high-voltage conductor castings, which ensures that the loose blocks are subjected to uniform force and are removed smoothly, thus extending the service life of the metal loose blocks.

[0004] A special device for removing loose blocks after casting of high voltage conductor castings includes a positioning module and a pressing module located directly above the positioning module;

[0005] The positioning module includes a base plate, and a positioning base at the lower end of the positioning casting is located in the middle of the base plate;

[0006] The positioning base includes a front side wall, a rear side wall, a left side wall, and a right side wall. The front side wall, rear side wall, left side wall, and right side wall of the positioning base are enclosed on the base plate to form an open groove that can accommodate the middle part of the lower end of the casting.

[0007] The inner surfaces of the four side walls of the open groove are inclined surfaces that match the shape of the lower middle part of the casting;

[0008] The pressing module includes an upper connecting plate, and the lower end of the upper connecting plate has pressing blocks that correspond one-to-one with the movable blocks on the casting.

[0009] The pressure block has pressure heads extending downwards at both ends to engage with the movable block, and the bottom of the pressure head has a V-shaped opening groove corresponding to the movable block.

[0010] It also includes a drive device that can drive the connecting plate to move vertically up and down. The drive device is fixed on the frame and connected to the upper end of the connecting plate.

[0011] The driving device is a pneumatic cylinder or a hydraulic cylinder.

[0012] When the connecting plate presses down on the movable block, the upper groove wall of the V-shaped opening groove is flush with the upper side wall of the movable block, and the rear groove wall of the V-shaped opening groove is flush with the rear side wall of the movable block.

[0013] The upper connecting plate has a through hole in the middle to accommodate the direct sprue of the casting.

[0014] Two positioning posts are erected on the base plate, and the two positioning posts are symmetrically arranged on both sides of the positioning base.

[0015] The left and right walls have recessed gaps in the middle.

[0016] The front and rear side walls are at the same height, the left and right side walls are at the same height, and the front side wall is higher than the right side wall.

[0017] The bottom of the V-shaped opening groove extends upward to provide a clearance groove for the inner gate of the casting.

[0018] Compared with the existing technology, this utility model uses a mold-making device to press out the movable block. The lower part is made into a positioning part according to the shape of the casting gating system, and the upper part is made into a pressing block according to the shape of the exposed part of the movable block. The casting is placed on the positioning body, and the device drives the pressing block to move down to press out the movable block. The movable block is subjected to force at the center of the product hole, and the force of pressing out the movable block is at the center of the movable block, so there will be no phenomenon of pressing and damaging the movable block or the casting.

[0019] This invention greatly reduces the labor intensity of the live block extraction process and improves production efficiency.

[0020] This invention can ensure that the movable block is subjected to uniform force and is removed smoothly, thus significantly extending the service life of the metal movable block.

[0021] This utility model has a simple structure and low cost. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present utility model;

[0023] Figure 2 This is the front view of the present invention;

[0024] Figure 3 This is a side view of the present invention;

[0025] Figure 4 This is a diagram showing the working status. Detailed Implementation

[0026] Figure 1-4 The present invention includes a positioning module for casting 8 and a pressing module for pressing out the movable block. The pressing module is located directly above the positioning module. The positioning module includes a base plate 1. The base plate 1 has a positioning base in the middle of which can position the middle of the bottom end of casting 8. The positioning base is an open groove formed by a front side wall 6, a rear side wall, a left side wall, and a right side wall 7, which can accommodate the middle of the lower end of casting 8. The inner surfaces of the four side walls of the open groove are inclined surfaces that match the shape of the middle of the lower end of casting 8. The front side wall 6 and the rear side wall are at the same height, and the left side wall and the right side wall 7 are at the same height. The height of the front side wall 6 is greater than the height of the right side wall 7. The middle of the front side wall 6 and the left side wall has a recessed clearance notch for accommodating casting 8. Two positioning posts 2 are erected on the base plate 1. The two positioning posts 2 are symmetrically arranged on both sides of the positioning base. The pressing module is driven by a lifting device to press out the movable blocks in the casting. The driving device is fixed on the frame and connected to the upper end of the connecting plate 4 of the pressing module. The driving device is a cylinder or a hydraulic cylinder. The pressing module includes an upper connecting plate 4. The upper connecting plate 4 has a through hole 12 in the middle to accommodate the direct sprue in the middle of the casting. The lower end of the upper connecting plate 4 has a pressing block 3 that corresponds one-to-one with the movable blocks 9 on the casting 8. The two ends of the pressing block extend downward to the pressing head that mates with the movable block 9. The bottom of the pressing head has a V-shaped opening groove corresponding to the movable block 9. When the connecting plate 4 presses down on the movable block 9, the upper groove wall 10 of the V-shaped opening groove is flush with the upper side wall 91 of the movable block 9, and the rear groove wall 11 of the V-shaped opening groove is flush with the rear side wall 92 of the movable block 9.

[0027] Figure 3 In the middle, the bottom of the V-shaped opening groove extends upward to provide a relief groove 13 for the inner gate of the casting, so as to prevent the force from acting on the inner gate of the casting and causing the pressure block to become unbalanced.

[0028] This invention uses a mold-making device to press out the movable block. The lower part is made into a positioning part according to the shape of the casting gating system, and the upper part is made into a pressing block according to the shape of the exposed part of the movable block. The casting is placed on the positioning body, and the device drives the pressing block to move down and press out the movable block. The movable block is subjected to force at the center of the product hole, and the force of pressing out the movable block is at the center of the movable block, so there will be no phenomenon of pressing and damaging the movable block or the casting.

Claims

1. A special device for removing loose blocks after casting high-voltage conductor castings, characterized in that: Includes a positioning module and a pressing module located directly above the positioning module; The positioning module includes a base plate (1), and the base plate (1) has a positioning base at the lower end of the positioning casting (8) in the middle. The positioning base includes a front side wall (6), a rear side wall, a left side wall and a right side wall (7). The front side wall (6), rear side wall, left side wall and right side wall (7) of the positioning base are enclosed on the base plate (1) to form an open groove that can accommodate the middle of the lower end of the casting (8). The inner sides of the four side walls of the open groove are inclined surfaces that match the shape of the lower middle part of the casting (8); The pressing module includes an upper connecting plate (4), and the lower end of the upper connecting plate (4) has a pressing block (3) that corresponds one-to-one with the movable block (9) on the casting (8); The pressure block has pressure heads extending downwards at both ends to connect with the movable block (9), and the bottom of the pressure head has a V-shaped opening groove corresponding to the movable block (9).

2. The special device for removing loose blocks after casting high-voltage conductor castings according to claim 1, characterized in that: It also includes a drive device that can drive the connecting plate (4) to move vertically. The drive device is fixed on the frame and connected to the upper end of the connecting plate (4).

3. A special device for removing loose blocks after casting high-voltage conductor castings according to claim 2, characterized in that: The driving device is a pneumatic cylinder or a hydraulic cylinder.

4. A special device for removing loose blocks after casting high-voltage conductor castings according to claim 1 or 2, characterized in that: When the connecting plate (4) presses down on the movable block (9), the upper groove wall (10) of the V-shaped opening groove is flush with the upper side wall (91) of the movable block (9), and the rear groove wall (11) of the V-shaped opening groove is flush with the rear side wall (92) of the movable block (9).

5. A special device for removing loose blocks after casting high-voltage conductor castings according to claim 1, characterized in that: The upper connecting plate (4) has a through hole (12) in the middle to accommodate the direct sprue of the casting.

6. A special device for removing loose blocks after casting high-voltage conductor castings according to claim 1, characterized in that: Two positioning posts (2) are erected on the base plate (1), and the two positioning posts (2) are symmetrically arranged on both sides of the positioning base.

7. A special device for removing loose blocks after casting high-voltage conductor castings according to claim 1, characterized in that: The left and right walls (7) are recessed in the middle with clearance gaps.

8. A special device for removing loose blocks after casting high-voltage conductor castings according to claim 1, characterized in that: The front sidewall (6) is at the same height as the rear sidewall, and the left sidewall is at the same height as the right sidewall (7). The height of the front sidewall (6) is greater than the height of the right sidewall (7).

9. A special device for removing loose blocks after casting high-voltage conductor castings according to claim 1, characterized in that: The bottom of the V-shaped opening groove extends upward to provide a relief groove (13) for the inner gate of the casting.

Images