Elastic demolding mechanism for hot core box core making
The hot core box core-making elastic demolding mechanism uses springs on surface A and surface B to drive the movable block upward, solving the problem of inconvenient sand core demolding and achieving more efficient sand core production.
Patent Information
- Application Number
- CN202520069767.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-10
AI Technical Summary
In the current sand core demolding process, the side is set perpendicular to the mold, which makes demolding inconvenient, inefficient, and makes it difficult to guarantee the quality of sand cores and castings.
The hot core box core-making elastic demolding mechanism uses springs on surface A and surface B to drive the movable block to move upward relative to the moving mold, achieving rapid demolding.
It improves demolding efficiency, has a simple and compact structure, is easy to operate, has good economic benefits, and ensures the quality of sand cores and castings.
Smart Images
Figure CN223670159U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sand core demoulding technical field especially a hot core box core making elastic demoulding mechanism. BACKGROUND
[0002] Sand core demoulding is an important link in the casting process, which involves how the sand core is smoothly separated from the mold, while ensuring the quality of the sand core and the casting. The sand core plays a role in forming the internal cavity or structure of the casting during the casting process. If the sand core cannot be smoothly separated from the mold during demoulding, it may cause damage to the sand core, thereby affecting the quality and yield of the casting. Therefore, sand core demoulding is one of the key steps to ensure the quality of casting. Sand core demoulding is an important link in the casting process, which requires selecting appropriate demoulding method, paying attention to the selection and use of demoulding agent, keeping the mold and sand core clean, and ensuring the operation safety. At the same time, the sand core demoulding process can be optimized by improving the demoulding tooling, optimizing the sand core design and strengthening the temperature control, so as to improve the casting quality and yield.
[0003] The existing sand core side grinding tool is perpendicular to the demoulding direction, which is 90 degrees, and is not convenient for demoulding. Generally, side air cylinder is set to demould, which is not convenient to operate and has low demoulding efficiency.
[0004] Therefore, we propose a hot core box core making elastic demoulding mechanism. CONTENT OF THE UTILITY MODEL
[0005] The applicant provides a hot core box core making elastic demoulding mechanism to drive the A-face movable block to move upward relative to the movable die through the A-face spring and drive the B-face movable block to move upward relative to the movable die through the B-face spring when the mold is opened, so as to realize rapid demoulding.
[0006] The technical scheme adopted by the utility model is as follows:
[0007] A hot core box core making elastic demoulding mechanism comprises:
[0008] A static die and a movable die;
[0009] An A-face limiting block is arranged on one side of the bottom of the static die;
[0010] A B-face limiting block is arranged on the other side of the bottom of the static die;
[0011] An A-face movable block is arranged on one side of the movable die;
[0012] A B-face movable block is arranged on the other side of the movable die;
[0013] An A-face spring is arranged in the movable die below the A-face movable block;
[0014] The B-side spring is arranged in the movable die and below the B-side movable block.
[0015] The A-side spring and the B-side spring are in compression after the static die and the movable die are combined.
[0016] It is further characterized in that:
[0017] The A-side limiting block is provided with two, and the B-side limiting block is provided with two.
[0018] The A-side limiting block extends downwardly a limiting column, and the B-side limiting block extends downwardly a limiting column.
[0019] The A-side movable block is provided at the top with a limiting slot corresponding to the A-side limiting block, and the B-side movable block is provided at the top with a limiting slot corresponding to the B-side limiting block.
[0020] The A-side movable block is provided at the bottom with a recess, and one end of the A-side spring is arranged in the recess.
[0021] The A-side spring and the recess at the bottom of the A-side movable block are both provided with two.
[0022] The B-side movable block is provided at the bottom with a recess, and one end of the B-side spring is arranged in the recess.
[0023] The B-side spring and the recess at the bottom of the B-side movable block are both provided with two.
[0024] The sand core is between the A-side movable block and the B-side movable block.
[0025] The beneficial effects of the utility model are as follows:
[0026] The utility model discloses compact, reasonable, convenient operation, before clamping, fix A face stop block and B face stop block respectively in the both sides of static die bottom, place A face movable block and B face movable block in the both sides in movable die, place A face spring below A face movable block, place B face spring below B face movable block, place A face stop block in the limit slot in A face movable block top, and B face stop block is in the limit slot in B face movable block top, static die and movable die begin to clamp, after static die and movable die clamp, limit A face movable block through A face stop block, limit B face movable block through B face stop block, after clamping, A face spring and B face spring are in compression state, make sand core, when opening, movable die moves downward, when movable die moves downward, A face movable block moves upward relative to movable die under the elastic force of A face spring, B face movable block moves upward relative to movable die under the elastic force of B face spring, realize the quick stripping of A face movable block and B face movable block, convenient for improving stripping efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 It is the schematic view after static die and movable die of the utility model clamp.
[0028] Figure 2 It is Figure 1 The top view.
[0029] Figure 3 It is Figure 2 The A-A section view in the schematic view.
[0030] Figure 4 It is Figure 2 The B-B section view in the schematic view.
[0031] Figure 5 It is the schematic view after static die and movable die of the utility model take out.
[0032] Figure 6 It is the A face movable block schematic view of the utility model.
[0033] Figure 7 It is the A face stop block schematic view of the utility model.
[0034] Among them: 1, static die;2, movable die;3, A face stop block;4, A face movable block;5, A face spring;6, B face stop block;7, B face movable block;8, B face spring;9, sand core. DETAILED DESCRIPTION
[0035] The specific implementation of the utility model will be explained below in combination with the drawings.
[0036] For example, Figures 1-7As shown, a hot core box core-making elastic demolding mechanism includes a static mold 1, a moving mold 2, an A-side limiting block 3, an A-side movable block 4, an A-side spring 5, a B-side limiting block 6, a B-side movable block 7, a B-side spring 8, and a sand core 9.
[0037] like Figure 1 As shown, after the mold is closed, the stationary mold 1 is above the moving mold 2. During mold closing and mold disassembly, the stationary mold 1 remains stationary, and the mold closing and disassembly are achieved by the movement of the moving mold 2.
[0038] like Figures 2-4 As shown, two A-side limiting blocks 3 are provided on one side of the bottom of the stationary mold 1. The A-side limiting blocks 3 are fixedly connected to the stationary mold 1. A limiting post extends downward from the A-side limiting blocks 3, and the limiting post is integrally formed with the A-side limiting blocks 3. The A-side limiting blocks 3 are L-shaped. The two A-side limiting blocks 3 are spaced apart.
[0039] Two B-side limiting blocks 6 are provided on the other side of the bottom of the stationary mold 1. The B-side limiting blocks 6 are fixedly connected to the stationary mold 1. The B-side limiting blocks 6 extend downward to form limiting posts, which are integrally formed with the B-side limiting blocks 6. The B-side limiting blocks 6 are L-shaped. The two B-side limiting blocks 6 are spaced apart.
[0040] A movable block 4 matching the A-side limiting block 3 is provided on one side of the moving mold 2, and a movable block 7 matching the B-side limiting block 6 is provided on the other side of the moving mold 2. An A-side spring 5 is provided at the bottom of the movable block 4, and a B-side spring 8 is provided at the bottom of the movable block 6. Both the A-side spring 5 and the B-side spring 8 are in a compressed state after the mold is closed.
[0041] The sand core 9 is located between the movable block 4 on surface A and the movable block 7 on surface B. The top of movable block 4 on surface A has a limiting groove corresponding to the limiting block 3 on surface A, and the top of movable block 7 on surface B has a limiting groove corresponding to the limiting block 6 on surface B. The limiting block 3 on surface A can be positioned within the limiting groove at the top of movable block 4, thus limiting movable block 4. The limiting block 6 on surface B can be positioned within the limiting groove at the top of movable block 7, thus limiting movable block 7.
[0042] In one embodiment, the A-side limiting block 3 can be set to one or three, or the number can be set equally.
[0043] In one embodiment, the B-side limiting block 6 can be set to one or three, or the same number of blocks can be set.
[0044] In one embodiment, two springs 5 are provided on side A and two springs 8 are provided on side B.
[0045] In one embodiment, two A-side springs 5 are disposed on both sides of the bottom of the A-side movable block 4.
[0046] In one embodiment, two B-face springs 8 are arranged at the bottom of the B-face movable block 7.
[0047] In one embodiment, a groove is arranged at the bottom of the A-face movable block 4, and one end of the A-face spring 5 is arranged in the groove.
[0048] In one embodiment, a groove is arranged at the bottom of the B-face movable block 7, and one end of the B-face spring 8 is arranged in the groove.
[0049] Before the mold is closed, the A-face limiting block 3 and the B-face limiting block 6 are fixed at the two sides of the bottom of the static mold 1, the A-face movable block 4 and the B-face movable block 7 are placed in the static mold 2, the A-face spring 5 is placed below the A-face movable block 4, the B-face spring 8 is placed below the B-face movable block 7, the A-face limiting block 3 is placed in the limiting groove at the top of the A-face movable block 4, and the B-face limiting block 7 is placed in the limiting groove at the top of the B-face movable block 7, then the static mold 1 and the dynamic mold 2 start to be closed, after the static mold 1 and the dynamic mold 2 are closed, the A-face movable block 4 is limited by the A-face limiting block 3, and the B-face movable block 7 is limited by the B-face limiting block 6, the A-face spring 5 and the B-face spring 8 are in a compressed state after the mold is closed, the sand core 9 is made, and when the mold is opened, the dynamic mold 2 moves downward, when the dynamic mold 2 moves downward, the A-face movable block 4 moves upward relative to the dynamic mold 2 under the elastic force of the A-face spring 5, and the B-face movable block 7 moves upward relative to the dynamic mold 2 under the elastic force of the B-face spring 8, so that the A-face movable block 4 and the B-face movable block 7 are quickly demolded, and the demolding efficiency is improved.
[0050] The above description is an explanation of the utility model, not a limitation of the utility model, the scope defined by the utility model is shown in the claims, and any form of modification can be made within the protection scope of the utility model.
Claims
1. A hot-box core shooting resilient release mechanism, characterized by, The utility model relates to a sand core positioning device for injection moulding machine, including: Static die (1) with movable die (2); A face limiting block (3) is set in static die (1) bottom one side; B face limiting block (6) is set in static die (1) bottom other side; A face movable block (4) is set in movable die (2) inside one side; B face movable block (7) is set in movable die (2) inside other side; A face spring (5) is set in movable die (2) and is below A face movable block (4); B face spring (8) is set in movable die (2) and is below B face movable block (7); Wherein, through A face limiting block (3) to A face movable block (4) is limited, through B face limiting block (6) to B face movable block (7) is limited, static die (1) and movable die (2) after closing die A face spring (5) and B face spring (8) are all in compression state.
2. A hot box core shooting resilient demolding mechanism as claimed in claim 1, characterized in that: The A face limiting block (3) is provided with two, and the B face limiting block (6) is provided with two.
3. A hot box core shooting resilient stripping mechanism as claimed in claim 2 wherein: The A face limiting block (3) extends downwardly to limit the column, and the B face limiting block (6) extends downwardly to limit the column.
4. A hot box core shooting resilient demolding mechanism as claimed in claim 3, characterized in that: The A face movable block (4) top is provided with the limit slot corresponding with A face limiting block (3), and the B face movable block (7) top is provided with the limit slot corresponding with B face limiting block (6).
5. A hot box core shooting resilient demolding mechanism as claimed in claim 4, characterized in that: The A face movable block (4) bottom is provided with the recess, and one end of the A face spring (5) is arranged in the recess.
6. A hot box core shooting resilient stripping mechanism as claimed in claim 5 wherein: The A face spring (5) and the recess of the A face movable block (4) bottom are provided with two.
7. A hot box core shooting resilient stripping mechanism as claimed in claim 4 wherein: The B face movable block (7) bottom is provided with the recess, and one end of the B face spring (8) is arranged in the recess.
8. A hot box core shooting resilient stripping mechanism as claimed in claim 7, wherein: The B face spring (8) and the recess of the B face movable block (7) bottom are provided with two.
9. A hot box core shooting resilient demolding mechanism as claimed in claim 1, wherein: The sand core (9) is between the A face movable block (4) and the B face movable block (7).