A burr removing tool for a mold production

Abstract

The utility model relates to the burr removing tool field, concretely points to a kind of burr removing tool for mould production, including the support rod of carrying trapezoidal polishing block, the driving assembly of adjusting the open-close state of support rod, and through the locking of lock catch, lock slot, the fixed component of the open-close state of support rod is locked etc.;The utility model compared with prior art has the advantages that: in the present application, the tool is expected to use a rod-shaped structure, which is inserted into the hole of the mold, to remove the burr on the edge of the hole by rotating and polishing. In addition, to adapt to the position and size of the mold hole, the tool also has a driving assembly for adjusting the position of the polishing block.

Description

Technical Field

[0001] This utility model relates to the field of burr removal tools, specifically a burr removal tool for mold production. Background Technology

[0002] Molds are usually formed by casting. Due to the low precision of the casting process, there will be some burrs on the surface and edges of the mold after demolding. Burrs are usually removed by hand sanding.

[0003] As a part, a mold may contain holes, and burrs often appear on the edges of these holes. When using hand sandpaper to polish these holes, the rounded edges are not easy to handle. If the inner diameter of the hole is small, it is even more inconvenient for the operator to carry sandpaper and reach into it to process it. Therefore, a burr removal tool for mold production is provided. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem this utility model aims to solve is that hand-held sandpaper is a convenient and economical way to polish the burrs on the surface of parts such as molds. However, when there are small holes in the mold, it is not easy to polish the area around the holes with hand-held sandpaper.

[0006] Technical solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a burr removal tool for mold production, comprising: a handle, a plurality of support rods evenly distributed and rotatably connected below the handle, and a plurality of trapezoidal grinding blocks connected outward at the bottom of the support rods, which scrape off burrs by contacting the edge of the mold hole and moving with each other.

[0008] The handle and the support rod are connected together by a drive assembly capable of changing the opening and closing state of the support rod.

[0009] Furthermore, the drive assembly includes a support, a support frame is connected to the top of the support, the support is installed below the handle, the ends of the support rods are rotatably connected to the edge of the support, a square guide rod is connected downward to the handle, the bottom end of the guide rod passes through the support and the support rod and is rotatably connected to a drive rod, and a fixing component capable of locking the position of the guide rod is installed inside the support.

[0010] Furthermore, the fixing component includes multiple locking blocks, which are evenly distributed and installed on the inner wall of the support. Each locking block has a wave-shaped locking groove. Support columns are connected around the guide rod, and a sliding sleeve is slidably connected to the end of the support column. A hemispherical buckle that engages with the locking groove is connected to the sliding sleeve. A return spring is installed between the guide column and the sliding sleeve.

[0011] Furthermore, the lock block is provided with multiple baffles on the outside of the lock groove to restrict the movement path of the hemispherical latch. Beneficial effects

[0012] The advantages of this utility model compared with the prior art are as follows: the tool in this application is intended to use a rod-shaped structure to extend into the hole of the mold and remove the burrs on the edge of the hole by rotating it. In addition, in order to adapt to the position and size of the mold hole, a drive component for adjusting the position of the grinding block is added to the tool. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the appearance and structure of a burr removal tool for mold production according to this utility model. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the appearance and structure of a burr removal tool for mold production according to this utility model. Figure 2 .

[0015] Figure 3 This is a schematic diagram of the internal structure of a burr removal tool for mold production according to this utility model. Figure 1 .

[0016] Figure 4 This is a schematic diagram of the internal structure of a burr removal tool for mold production according to this utility model. Figure 2 .

[0017] Figure 5 yes Figure 1 A partial structural diagram.

[0018] Figure 6 yes Figure 2 A partial structural diagram.

[0019] Figure 7 yes Figure 4 A schematic diagram of the structure of part A.

[0020] As shown in the figure: 1. Support, 2. Guide rod, 3. Handle, 4. Support frame, 5. Support rod, 6. Drive rod, 7. Grinding block, 8. Support column, 9. Sliding sleeve, 10. Hemispherical buckle, 11. Locking block, 12. Locking groove, 13. Baffle, 14. Return spring. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. Example

[0022] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a burr removal tool for mold production, combined with an attached... Figure 1-2 It includes: a handle 3, and a plurality of support rods 5 are evenly distributed and rotatably connected below the handle 3. The bottom of the support rods 5 is connected to a plurality of trapezoidal grinding blocks 7 that scrape off burrs by contacting the edge of the mold hole and moving with each other.

[0023] A rod structure is formed by the handle 3 and multiple support rods 5. The rod structure extends into the mold hole, so that the trapezoidal inclined surface of the grinding block 7 on the outside of the support rod 5 contacts the edge of the hole. By holding the rod structure, the grinding block 7 is kept in constant contact with the mold and rotated by pressing and lifting to grind away the burrs on the edge of the mold hole.

[0024] Combined with appendix Figure 5-6 The handle 3 and the support rod 5 are connected together by a drive assembly that can change the opening and closing state of the support rod 5. The drive assembly includes a support 1, a support frame 4 is connected to the top of the support 1, the support 1 is installed below the handle 3, the ends of the support rod 5 are rotatably connected to the edge of the support 1, the handle 3 is connected downward to a square guide rod 2, and the bottom end of the guide rod 2 passes through the support 1 and the support rod 5 and is rotatably connected to a drive rod 6.

[0025] The drive assembly controls each support rod 5 to open and close to a certain state, which facilitates the grinding and deburring of holes with different inner diameters and the upper and lower edges of the holes. The hand grip 3 moves up or down while the support 1 is fixed. The guide rod 2 pushes and pulls the support rod 5 to rotate below the support 1 through the drive rod 6, thereby changing its tilt.

[0026] When the bottom end of the support rod 5 moves inward, the grinding block 7 can be used from above to remove the burrs from the top edge of the hole. When the bottom end of the support rod 5 extends outward, the support rod 5, which has already passed through the through hole in the mold, can be lifted to a certain extent and the grinding block 7 can be used to remove the burrs from the bottom edge of the hole. Example

[0027] Combined with appendix Figure 3-4 and appendix Figure 7The support 1 is equipped with a fixing component that can lock the position of the guide rod 2. The fixing component includes multiple locking blocks 11, which are evenly distributed on the inner wall of the support 1. Each locking block 11 has a wave-shaped locking groove 12. The guide rod 2 is connected to a support column 8 around its perimeter. The end of the support column 8 is slidably connected to a sliding sleeve 9. The sliding sleeve 9 is connected to a hemispherical latch 10 that engages with the locking groove 12. A return spring 14 is installed between the guide column and the sliding sleeve 9. Multiple baffles 13 are connected to the outside of the locking groove 12 of the locking block 11 to limit the movement path of the latch 10.

[0028] During the up-and-down movement of the guide rod 2 within the support 1, its external hemispherical latch 10, under the tension of the return spring 14, is embedded into the bottom of the wave-shaped locking groove 12, thus fixing the up-and-down position of the guide rod 2 and locking the support rod 5 in the open and closed state. Due to the wave-shaped design of the locking groove 12, if too much external force is applied, the return spring 14 will be compressed, and the locking block 11 will also leave the bottom of the locking groove 12, thus unlocking the support rod 5.

[0029] In practical implementation, when deburring the edges of holes on a mold by grinding, this tool is used. One hand holds the support 1 part, and the other hand grasps the handle 3 and pulls it upward. The hemispherical latch 10 on the guide rod 2 bounces continuously in the wave-shaped locking groove 12, while the multiple support rods 5 below also converge inward. After finding a suitable position, the bottom of the tool is inserted into the hole until the edge of the hole abuts against the grinding block 7. Then, the tool is rotated while holding it, and the grinding block 7 rubs against the mold to remove the burrs at the edge of the hole. If a through hole is encountered and there is not enough operating space on the other side of the hole, the part containing the support rod 5 is first passed through the through hole so that the grinding block 7 is below the through hole. Then, the guide rod 2 is pressed down to open the bottom of the support rod 5 outward. After reaching a suitable degree, the tool is lifted upward so that the grinding block 7 contacts the bottom edge of the hole. Then, it is rotated in the same way, and the burrs on the bottom edge of the through hole are removed by friction.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A burr removing tool for a mold production, characterized by, include: The handle (3) has multiple support rods (5) evenly distributed and rotatably connected below it. The bottom of the support rods (5) is connected to multiple trapezoidal grinding blocks (7) that scrape off burrs by contacting the edge of the mold hole and moving with each other. The handle (3) and the support rod (5) are connected together by a drive assembly that can change the opening and closing state of the support rod (5).

2. The burr removing tool for a mold production according to claim 1, characterized by: The drive assembly includes a support (1), a support frame (4) is connected to the top of the support (1), the support (1) is installed below the handle (3), the ends of the support rod (5) are rotatably connected to the edge of the support (1), the handle (3) is connected downward to a square guide rod (2), the bottom end of the guide rod (2) passes through the support (1) and the support rod (5) and is rotatably connected to a drive rod (6), and a fixing component that can lock the position of the guide rod (2) is installed inside the support (1).

3. The burr removing tool for a mold production according to claim 2, characterized by: The fixing component includes multiple locking blocks (11), which are evenly distributed on the inner wall of the support (1). Each locking block (11) has a wavy locking groove (12). The guide rod (2) is connected to a support column (8) around its perimeter. The end of the support column (8) is slidably connected to a sliding sleeve (9). The sliding sleeve (9) is connected to a hemispherical buckle (10) that engages with the locking groove (12). A return spring (14) is installed between the guide rod (2) and the sliding sleeve (9).

4. The burr removing tool for a mold production according to claim 3, characterized by: The locking block (11) is located outside the locking groove (12) and is connected to a plurality of baffles (13) for restricting the movement path of the hemispherical latch (10).

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