A sand blocking plate structure of a core setting jig

Abstract

The application relates to the casting technical field and discloses a sand blocking plate structure of a core lower mould, which comprises a core lower mould, a plurality of sand blocking components arranged on the core lower mould, a mounting block and a plurality of sand blocking plates arranged on the outer side of the mounting block, a fixed block fixed on the outer side of the mounting block and hinged to the bottom of the sand blocking plate, a mounting groove arranged on the side of the mounting block close to the sand blocking plate, and a plurality of connecting springs with the other ends fixed on the adjacent sand blocking plates and fixed on the inner wall of the mounting groove. The sand blocking plate can be offset along with the shape of the sand core, the sand blocking plate can be flexibly regulated and controlled, the flexibility is high, and the sand blocking plate is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and in particular to a sand-blocking plate structure for a lower core die. Background Technology

[0002] A core die is a tool used to manufacture castings. Most existing core dies are equipped with sand baffles to confine the sand core on the core and prevent it from slipping off. Although existing sand baffles can confine the sand core, they are often fixed to the core die during use. When adjustments are needed based on the shape of the sand core, the sand baffles usually need to be removed from the core die. This process is not only time-consuming and labor-intensive, but also greatly reduces the casting production progress. Therefore, we propose a new core die sand baffle structure. Summary of the Invention

[0003] To address the technical problem that existing sand baffles are inconvenient to use, this invention provides a sand baffle structure for a lower core die.

[0004] This invention is achieved using the following technical solution: a sand-blocking plate structure for a lower core fixture, comprising a lower core fixture, wherein the lower core fixture is provided with multiple sand-blocking components, each sand-blocking component comprising a mounting block and multiple sand-blocking plates disposed on the outside of the mounting block, wherein the bottom of each sand-blocking plate is hinged to a fixing block fixed to the outside of the mounting block, wherein the mounting block has a mounting groove on the side near the sand-blocking plate, wherein the inner wall of the mounting groove is fixed with multiple connecting springs whose other ends are fixed to adjacent sand-blocking plates, wherein the multiple mounting blocks can support the sand core, and the sand-blocking plates can limit the sand core, wherein the sand-blocking plates will deflect according to the shape of the sand core through the hinged cooperation of the sand-blocking plates and the fixing blocks, and the restoring elasticity of the connecting springs pulls the sand-blocking plates to adhere to the sand core, thereby ensuring the stability of the sand core.

[0005] As a further improvement to the above solution, a support block is provided below the mounting block. The support block has a mounting groove on the side near the mounting block. A loading block is rotatably connected inside the mounting groove. A loading groove is provided at the end of the mounting block near the support block. The loading block located outside the mounting groove is inserted into the loading groove and has a drive groove. A drive block fixed to the inner wall of the top of the loading groove is slidably inserted inside the drive groove. Multiple positioning grooves are provided circumferentially on the inner wall of the bottom of the mounting groove. Positioning blocks fixed to the loading block are slidably connected inside the positioning grooves. Through the cooperation of the above components, the horizontal angle of the sand baffle can be adjusted.

[0006] As a further improvement to the above solution, the driving block is a rectangular block and the driving groove is a rectangular groove. With the driving block and driving groove, which are both rectangular in structure, the loading block can be driven to rotate when the driving block rotates.

[0007] As a further improvement to the above solution, the mounting block has multiple through holes on the lower core jig. A threaded rod slides through the through holes. One end of the threaded rod is fixed to an adjacent support block, and a limiting sleeve is threaded onto the outer wall of the other end of the threaded rod. The limiting sleeve contacts the lower core jig. Through the cooperation of the above components, it is convenient for workers to remove the sand baffle from the lower core jig.

[0008] As a further improvement to the above solution, the diameter of the limiting sleeve is larger than the diameter of the perforation, and a rubber sleeve is fixedly fitted on the outer wall of the limiting sleeve. By using the limiting sleeve with a diameter larger than the diameter of the perforation, the limiting sleeve can be prevented from entering the interior of the perforation. The rubber sleeve allows the user to easily rotate the limiting sleeve.

[0009] As a further improvement to the above solution, a pressure ring that slides inside the mounting groove is sleeved on the outside of the loading block. Multiple push springs are fixed on the side of the pressure ring away from the positioning block. The end of the push spring away from the loading block is fixed on the inner wall of the mounting groove. By pushing the elasticity of the spring, the pressure ring can be pushed to press tightly against the loading block, pressing the positioning block at the bottom of the loading block into the positioning groove, thus limiting the loading block and the sand baffle and preventing the sand baffle from deflecting arbitrarily.

[0010] As a further improvement to the above solution, the drive block has a threaded groove at the end away from the mounting block, and a threaded post is inserted into the threaded groove. The end of the threaded post away from the drive block extends through to the bottom of the lower core jig and is fixed with an operating block. Through the operation of the above components, the horizontal height of the sand baffle can be adjusted.

[0011] As a further improvement to the above solution, the loading block and the support block are provided with transition holes, and the threaded column rotates inside the transition holes, allowing the threaded column to rotate flexibly through the transition holes.

[0012] As a further improvement to the above solution, an operating port is provided below the support block on the lower core die. The threaded column rotates inside the adjacent operating port. Through the operating port, the threaded column can rotate and the operating block can be vertically displaced.

[0013] As a further improvement to the above solution, the distance between the pressure ring and the inner wall of the top of the mounting groove is greater than the height of the positioning block. The positioning block is a cylindrical structure, which allows it to enter the interior of the positioning groove more quickly.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] This invention can support and limit the sand core, and the sand baffle can be offset according to the shape of the sand core, thereby ensuring that the sand baffle is in close contact with the sand core, ensuring the stability of the sand core, avoiding the need for workers to adjust the sand baffle away from the lower core jig, and the sand baffle can be flexibly adjusted according to the usage requirements, with high working performance and convenient use. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a sand baffle plate structure for a lower core jig;

[0017] Figure 2 This is a top view schematic diagram of a sand baffle plate structure in a lower core jig.

[0018] Figure 3 This is a schematic diagram of the mounting block in a sand baffle structure of a lower core fixture.

[0019] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0020] Figure 5 This is a schematic diagram of the drive groove in a sand baffle structure of a lower core fixture.

[0021] Explanation of key symbols:

[0022] 1. Lower core jig; 2. Mounting block; 3. Fixing block; 4. Sand baffle; 5. Positioning groove; 6. Connecting spring; 7. Mounting groove; 8. Loading block; 9. Drive block; 10. Pressure ring; 11. Push spring; 12. Support block; 13. Positioning block; 14. Threaded rod; 15. Limiting sleeve; 16. Threaded post; 17. Drive groove. Detailed Implementation

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] Example 1:

[0025] Combination Figure 1 , Figure 2 and Figure 3 The sand baffle structure of the lower core jig in this embodiment includes a lower core jig 1. The lower core jig 1 is provided with a plurality of sand baffle components. The sand baffle components include a mounting block 2 and a plurality of sand baffles 4 disposed on the outside of the mounting block 2. The bottom of the sand baffle 4 is hinged to a fixing block 3 fixed to the outside of the mounting block 2. The mounting block 2 is provided with a mounting groove 7 on the side near the sand baffle 4. A plurality of connecting springs 6 are fixed on the inner wall of the mounting groove 7, with the other end fixed to the adjacent sand baffle 4.

[0026] The implementation principle of the sand baffle structure of the lower core jig in this application embodiment is as follows: the sand core can be supported by multiple mounting blocks 2, and the sand baffle 4 can limit the sand core to prevent it from slipping off the mounting blocks 2. When the sand core is placed on the mounting blocks 2, the sand baffle 4 will deflect according to the shape of the sand core through the hinged cooperation of the sand baffle 4 and the fixed block 3. When the sand core falls on the mounting blocks 2, the return elasticity of the connecting spring 6 will pull the sand baffle 4 to stick to the sand core, thereby ensuring the stability of the sand core and avoiding the need for workers to adjust the sand baffle away from the lower core jig, making it convenient to use.

[0027] Example 2:

[0028] Combination Figure 4 This embodiment, based on embodiment 1, further improves upon the following: a support block 12 is provided below the mounting block 2; a mounting groove 7 is provided on the side of the support block 12 near the mounting block 2; a loading block 8 is rotatably connected inside the mounting groove 7; a loading groove is provided at one end of the mounting block 2 near the support block 12; the loading block 8, located outside the mounting groove 7, is inserted into the loading groove and has a drive groove 17; a drive block 9, fixed to the inner wall of the top of the loading groove, is slidably inserted inside the drive groove 17; and multiple positioning blocks are provided circumferentially on the inner wall of the bottom of the mounting groove 7. The positioning slot 5 has a slidable connection to a positioning block 13 fixed on the loading block 8. When the user needs to adjust the horizontal angle of the sand baffle 4 during use, the user can pull the mounting block 2 to drive the loading block 8 to move vertically. When the positioning block 13 at the bottom of the loading block 8 is disengaged from the corresponding positioning slot 5, the mounting block 2 can be rotated. Through the cooperation of the drive block 9 and the drive slot 17, the loading block 8 and the mounting block 2 are rotated, which in turn drives the sand baffle 4 to rotate. At this time, the horizontal angle of the sand baffle 4 can be adjusted.

[0029] The drive block 9 is a rectangular block, and the drive groove 17 is a rectangular groove. With the drive block 9 and drive groove 17, which are both rectangular structures, the loading block 8 can be driven to rotate when the drive block 9 rotates.

[0030] Multiple through holes are provided below the mounting block 2 on the lower core fixture 1. A threaded rod 14 slides through the through holes. One end of the threaded rod 14 is fixed to the adjacent support block 12. A limiting sleeve 15 is threadedly sleeved on the outer wall of the other end of the threaded rod 14. The limiting sleeve 15 contacts the lower core fixture 1. Rotating the limiting sleeve 15 causes the limiting sleeve 15 to move through the threaded engagement between the limiting sleeve 15 and the threaded rod 14. When the limiting sleeve 15 is removed from the outside of the threaded rod 14, the support block 12 can be pulled. Through the sliding engagement between the through holes and the threaded rod 14, the threaded rod 14 is moved. When the threaded rod 14 is removed from the inside of the through holes, the support block 12 is removed from the lower core fixture 1, and the sand baffle 4 is removed from the lower core fixture 1.

[0031] The diameter of the limiting sleeve 15 is larger than the diameter of the perforation. A rubber sleeve is fixedly fitted on the outer wall of the limiting sleeve 15. The limiting sleeve 15, with a diameter larger than the diameter of the perforation, can prevent the limiting sleeve 15 from entering the interior of the perforation. The rubber sleeve allows the user to easily rotate the limiting sleeve 15.

[0032] The loading block 8 is fitted with a pressure ring 10 that slides inside the mounting groove 7. Multiple push springs 11 are fixed on the side of the pressure ring 10 away from the positioning block 13. The end of the push spring 11 away from the loading block 8 is fixed on the inner wall of the mounting groove 7. By pushing the elasticity of the push spring 11, the pressure ring 10 can be pushed to press tightly against the loading block 8, thereby pressing the positioning block 13 at the bottom of the loading block 8 to be located inside the positioning groove 5, thereby limiting the loading block 8 and limiting the sand baffle 4 to prevent the sand baffle 4 from deflecting arbitrarily.

[0033] Example 3:

[0034] Combination Figure 5 This embodiment is an improvement on embodiment 2, in that the end of the driving block 9 away from the mounting block 2 is provided with a threaded groove, and a threaded post 16 is inserted into the threaded groove. The end of the threaded post 16 away from the driving block 9 extends to the bottom of the lower core jig 1 and is fixed with an operating block. When the driving block 9 moves vertically, the threaded post 16 can be pulled vertically through the threaded groove, which in turn pulls the loading block 8 vertically. When it is necessary to adjust the horizontal height of the sand baffle 4, the operating block can be rotated to drive the threaded post 16 to rotate. Through the threaded engagement between the threaded post 16 and the threaded groove, the driving block 9 is driven to move vertically, which in turn drives the mounting block 2 and the sand baffle 4 to move vertically. At this time, the horizontal height of the sand baffle 4 can be adjusted.

[0035] The loading block 8 and the support block 12 are provided with transition holes, and the threaded column 16 rotates inside the transition hole. Through the transition hole, the threaded column 16 can rotate flexibly.

[0036] The support block 12 has an operating port on the lower core die 1 below it. The threaded column 16 rotates inside the adjacent operating port. The threaded column 16 can rotate through the operating port, and the operating block can be vertically displaced.

[0037] The distance between the pressure ring 10 and the top inner wall of the mounting groove 7 is greater than the height of the positioning block 13. The positioning block 13 has a cylindrical structure. The distance between the pressure ring 10 and the top inner wall of the mounting groove 7 is greater than the height of the positioning block 13, which allows the loading block 8 to be vertically displaced, thereby driving the positioning block 13 to leave the interior of the positioning groove 5. The cylindrical positioning block 13 can more easily enter the interior of the positioning groove 5.

[0038] Working principle: When using the sand baffle 4, the horizontal angle of the sand baffle 4 can be adjusted according to the usage requirements. Pulling the mounting block 2 drives the drive block 9 to move vertically. Through the threaded groove on the drive block 9, the threaded column 16 is pulled vertically, which in turn pulls the loading block 8 to move vertically. When the positioning block 13 at the bottom of the loading block 8 disengages from the corresponding positioning groove 5, the mounting block 2 can be rotated. Through the cooperation of the drive block 9 and the drive groove 17, the loading block 8 and the mounting block 2 are rotated, which in turn drives the sand baffle 4 to rotate. At this time, the horizontal angle of the sand baffle 4 can be adjusted, and then the horizontal height of the sand baffle 4 can be adjusted. Rotating the operating block drives the threaded column 16 to rotate. Through the threaded engagement of the threaded column 16 and the threaded groove... The drive block 9 is vertically displaced, which in turn causes the mounting block 2 and the sand baffle 4 to move vertically as well. The horizontal height of the sand baffle 4 can be adjusted at this time. After the sand baffle 4 is adjusted, the sand core can be placed on the mounting block 2. The sand core is supported by multiple mounting blocks 2, and the sand baffle 4 can limit the sand core to prevent it from slipping off the mounting block 2. When the sand core is placed on the mounting block 2, the sand baffle 4 will deflect according to the shape of the sand core through the hinged cooperation between the sand baffle 4 and the fixing block 3. After the sand core falls on the mounting block 2, the return elasticity of the connecting spring 6 will pull the sand baffle 4 to stick to the sand core, thereby ensuring the stability of the sand core and preventing the operator from adjusting the sand baffle away from the lower core jig. It is convenient to use.

[0039] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A sand blocking plate structure of a core lifter, comprising a core lifter, characterized in that, The lower core mold is provided with a plurality of sand blocking assemblies, the sand blocking assembly comprises a mounting block and a plurality of sand blocking plates arranged outside the mounting block, the bottom of the sand blocking plate is hingedly connected with a fixed block fixed outside the mounting block, the side of the mounting block close to the sand blocking plate is provided with a mounting groove, and the inner wall of the mounting groove is fixed with a plurality of connecting springs with the other end fixed on the adjacent sand blocking plate. The lower side of the mounting block is provided with a supporting block, the side of the supporting block close to the mounting block is provided with a mounting groove, the inside of the mounting groove is rotatably connected with a loading block, the end of the mounting block close to the supporting block is provided with a loading groove, the loading block outside the mounting groove is inserted into the inside of the loading groove and is provided with a driving groove, the inside of the driving groove is slidably inserted with a driving block fixed on the top inner wall of the loading groove, and the inner wall of the bottom of the mounting groove is circumferentially provided with a plurality of positioning grooves, the inside of the positioning groove is slidably connected with a positioning block fixed on the loading block.

2. A sand baffle structure for a core setting jig according to claim 1, wherein The driving block is a rectangular block, and the driving groove is a rectangular groove.

3. The core lifter sand plate structure of claim 1, wherein, The lower side of the mounting block is provided with a plurality of through holes arranged on the lower core mold, the inside of the through hole is slidably inserted with a threaded rod, one end of the threaded rod is fixed on the adjacent supporting block, and the outer wall of the other end of the threaded rod is threadedly sleeved with a limiting sleeve, and the limiting sleeve is in contact with the lower core mold.

4. A core lifter sand plate structure as claimed in claim 3, wherein, The diameter of the limiting sleeve is greater than the hole diameter of the through hole, and the outer wall of the limiting sleeve is sleeved with a rubber sleeve.

5. The core lifter sand plate structure of claim 1, wherein, The outside of the loading block is sleeved with a compression ring sliding in the inside of the mounting groove, the side of the compression ring away from the positioning block is fixed with a plurality of pushing springs, and the end of the pushing spring away from the loading block is fixed on the inner wall of the mounting groove.

6. The core lifter sand plate structure of claim 1, wherein, The end of the driving block away from the mounting block is provided with a threaded groove, the inside of the threaded groove is threadedly inserted with a threaded column, and the end of the threaded column away from the driving block penetrates to the lower side of the lower core mold and is fixed with an operating block.

7. A core former sand plate structure as claimed in claim 6, wherein, The loading block and the supporting block are provided with an adapter hole, and the threaded column rotates in the inside of the adapter hole.

8. A core lifter sand plate structure as claimed in claim 6, wherein, The lower side of the supporting block is provided with an operating port arranged on the lower core mold, and the threaded column rotates in the inside of the adjacent operating port.

9. A core lifter sand plate structure as claimed in claim 5, wherein, The distance between the compression ring and the top inner wall of the mounting groove is greater than the height of the positioning block, and the positioning block is a cylindrical structure.

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