Mould demoulding mechanism capable of simultaneously demoulding in three directions
By designing a mold demolding mechanism that can eject molds simultaneously from three directions, and utilizing a sliding seat and slider structure, combined with a wedge groove and elastic reset structure, the problem of complex and costly demolding of injection molded products with undercut around the perimeter is solved, achieving efficient and low-cost multi-directional demolding.
Patent Information
- Application Number
- CN202423258680.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing injection molded products have complex and costly undercut demolding structures around the perimeter.
The mold demolding mechanism, which allows for simultaneous demolding in three directions, includes a sliding base, a main slider, and a secondary slider. The slider is driven to slide backward by a drive device, and the three-way demolding (backward, downward, and rightward) is achieved by combining a wedge groove and an elastic reset structure.
It achieves multi-directional demolding with simple structure, low cost, small space, high efficiency and good stability, thus reducing demolding costs.
Smart Images

Figure CN223604941U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a mould demoulding mechanism of three directions simultaneously ejection.
BACKGROUND
[0002] More and more plastic products appear in daily life, with the rapid development of plastic industry and the continuous improvement of general and engineering plastics in strength quality etc. Plastic products are processed by injection mould, in the mould design manufacturing process, especially injection automobile plastic parts, such as automobile rearview mirror shell, automobile headlamp shell etc., since the back of the mirror shell, automobile headlamp shell has the reverse buckle, now generally adopts the inclined jacking or other mechanism to demould, but the existing demoulding structure is high in cost and complex in structure.
[0003] The utility model discloses to solve the problem that the injection moulded product has the reverse buckle, the existing demoulding structure of the injection moulded product is complex, and the cost is high.
SUMMARY
[0004] The utility model discloses to overcome the insufficient of prior art, provide a simple structure, low in cost, small in space, high in efficiency, good stability mould demoulding mechanism of three directions simultaneously ejection.
[0005] The utility model discloses to overcome the insufficient of prior art, provide a simple structure, low in cost, small in space, high in efficiency, good stability mould demoulding mechanism of three directions simultaneously ejection.
[0006] A mould demoulding mechanism of three directions simultaneously ejection, it is characterized in that it includes base, the base is equipped with the sliding seat that can slide on the base, the rear end of sliding seat is equipped with the drive arrangement that drives it to slide, the front end of sliding seat is connected with main sliding block, the upper portion of main sliding block is equipped with the secondary upper sliding block that can drive it to slide back and down after main sliding block slides back certain distance;The left side of main sliding block is equipped with the secondary side sliding block that can drive it to slide back and right side after main sliding block slides back certain distance, drive arrangement drives sliding seat to slide back certain distance, and then main sliding block drives secondary upper sliding block and secondary side sliding block to move back, thereby realizing three directions simultaneously ejection back, down and right.
[0007] A mould demoulding mechanism of three directions simultaneously ejection as above, it is characterized in that the upper portion of main sliding block is equipped with upper wedge-shaped groove, and the upper wedge-shaped groove is inclined and set with low front and high back, the lower portion of secondary upper sliding block is equipped with upper wedge-shaped protruding block that cooperates with upper wedge-shaped groove, and first elastic reset structure is equipped between upper wedge-shaped groove and upper wedge-shaped protruding block.
[0008] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that the first elastic reset structure comprises an upper groove arranged on one side of the upper wedge-shaped groove close to the sliding seat, and an upper sliding block top block arranged on the lower part of the second upper sliding block close to the sliding seat, the upper sliding block top block being capable of being inserted into the upper groove, and a first spring being further arranged in the upper groove.
[0009] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that a side wedge-shaped groove is arranged on the left side of the main sliding block, the side wedge-shaped groove being arranged in an inclined manner with the front part being thin and the rear part being thick, a side wedge-shaped protrusion cooperating with the side wedge-shaped groove is arranged on the left side of the second side sliding block, and a second elastic reset structure is arranged between the side wedge-shaped groove and the side wedge-shaped protrusion.
[0010] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that the second elastic reset structure comprises a side groove arranged on one side of the side wedge-shaped groove close to the sliding seat, a second side sliding block top block arranged on the inner side of the second side sliding block close to the sliding seat, the side sliding block top block being capable of being inserted into the side groove, and a second spring being further arranged in the side groove.
[0011] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that a cladding part is further fixed on the right side of the main sliding block.
[0012] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that a pair of rails are arranged on the base, limit grooves are arranged on the lower inner sides of the pair of rails, and limit steps cooperating with the limit grooves are arranged on the two sides of the lower part of the sliding seat.
[0013] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that main sliding block fixing blocks are arranged on the upper part and the lower part of the rear end of the main sliding block, and a sliding seat fixing groove is arranged on the front end of the sliding seat for the insertion of the main sliding block fixing blocks.
[0014] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that a pair of rails are arranged on the base, limit grooves are arranged on the lower inner sides of the pair of rails, and limit steps cooperating with the limit grooves are arranged on the two sides of the lower part of the sliding seat.
[0015] The mold stripping mechanism capable of simultaneous ejection in three directions as described above is characterized in that the main sliding block is driven to slide backward by a certain distance by the driving device, and then the main sliding block drives the second upper sliding block and the second side sliding block to move backward, so as to realize the simultaneous ejection in the backward direction, the downward direction and the rightward direction, the structure is simple, the cost is low, the space is small, the efficiency is high, and the stability is good.
DRAWING EXPLANATION
[0016] Figure 1 is a perspective view of the mold stripping mechanism capable of simultaneous ejection in three directions;
[0017] Figure 2 is a partial structure view of the mold stripping mechanism capable of simultaneous ejection in three directions;
[0018] Figure 3 is Figure 2 an exploded view of the mold stripping mechanism capable of simultaneous ejection in three directions;
[0019] Figure 4 is the structure diagram of the main sliding block, the secondary upper sliding block and the secondary side sliding block of the utility model;
[0020] Figure 5 is the structure diagram of the main sliding block, the secondary upper sliding block and the secondary side sliding block of the utility model;
[0021] Figure 6 is the structure diagram of the main sliding block of the utility model.
CONCRETE IMPLEMENTATION
[0022] The utility model will be further described in connection with the drawings:
[0023] A mould demoulding mechanism that can simultaneously demould in three directions, which comprises a base 1, the base 1 is provided with a sliding seat 2 that can slide on the base, the rear end of the sliding seat 2 is provided with a driving device 3 that drives it to slide, the front end of the sliding seat 2 is connected with a main sliding block 5, the upper portion of the main sliding block 5 is provided with a secondary upper sliding block 6 that can drive it to slide backward and downward after the main sliding block slides a certain distance; the left side of the main sliding block 5 is provided with a secondary side sliding block 7 that can drive it to slide backward and to the right side after the main sliding block slides a certain distance, after the driving device 3 drives the main sliding block 5 to slide a certain distance, the main sliding block 5 drives the secondary upper sliding block 6 and the secondary side sliding block 7 to move backward, thereby realizing simultaneous demoulding in three directions of backward, downward and right.
[0024] The driving device 3 of the utility model can adopt an oil cylinder, an air cylinder and the like.
[0025] The front portion of the secondary upper sliding block 6 of the utility model has an arc shape that matches the injection-molded product, and the left side of the secondary side sliding block 7 has an arc shape that matches the injection-molded product.
[0026] The upper portion of the main sliding block 5 of the utility model is provided with an upper wedge-shaped groove 51, the upper wedge-shaped groove is inclinedly arranged with the front being low and the rear being high, the lower portion of the secondary upper sliding block 6 is provided with an upper wedge-shaped protrusion 61 that cooperates with the upper wedge-shaped groove, and a first elastic reset structure 8 is arranged between the upper wedge-shaped groove 51 and the upper wedge-shaped protrusion 61.
[0027] The first elastic reset structure 8 of the utility model comprises an upper recess 81 that is arranged on one side of the upper wedge-shaped groove 51 close to the sliding seat 2, an upper sliding block top block 82 that is arranged on the lower portion of the side of the secondary upper sliding block 6 close to the sliding seat, the upper sliding block top block 82 can be inserted into the upper recess 81, and a first spring 83 is further arranged in the upper recess 81.
[0028] The left side of the main sliding block 5 of the utility model is provided with a side wedge-shaped groove 52, the side wedge-shaped groove 52 is inclinedly arranged with the front being thin and the rear being thick, the left side of the secondary side sliding block 7 is provided with a side wedge-shaped protrusion 71 that cooperates with the side wedge-shaped groove 52, and a second elastic reset structure 9 is arranged between the side wedge-shaped groove 52 and the side wedge-shaped protrusion 71.
[0029] The second elastic reset structure 9 comprises a side recess 91 arranged on one side of the side wedge-shaped groove 52 close to the sliding seat, and a second spring 93 arranged in the side recess 91.
[0030] The main sliding block 5 is further fixed with the insert 4 on the right side.
[0031] The base 1 is provided with a pair of rails 11, the lower inner side of the pair of rails 11 is provided with a limiting groove 12, and the lower sides of the sliding seat 2 are provided with limiting steps matched with the limiting groove 12.
[0032] The upper part and the lower part of the rear end of the main sliding block 5 are both provided with a main sliding block fixing block 53, the front end of the sliding seat 2 is provided with a sliding seat fixing groove 21 for inserting the main sliding block fixing block 53, the main sliding block fixing block 53 is a square block, and the sliding seat fixing groove 21 is a square groove matched with the main sliding block fixing block 53, so that the main sliding block fixing block 53 not only plays a fixing role, but also plays a positioning role.
[0033] The main sliding block 5, the second upper sliding block 6, the second side sliding block 7 and the insert 4 can jointly form a mold core after being folded. The insert 4 can be an integral structure with the main sliding block 5, or can be a split structure.
Claims
1. A mold demolding mechanism capable of simultaneous demolding from three directions, characterized in that... It includes a base (1), a sliding seat (2) that can slide on the base (1), a driving device (3) that drives the sliding seat (2) to slide at the rear end, a main slider (5) connected to the front end of the sliding seat (2), a secondary upper slider (6) that can drive the main slider to slide backward and downward after sliding backward a certain distance on the upper part of the main slider (5); a secondary side slider (7) that can drive the main slider to slide backward and to the right after sliding backward a certain distance on the left side of the main slider (5), after the main slider slides backward a certain distance on the left side, the driving device (3) drives the main slider (5) to slide backward a certain distance, and then the main slider (5) drives the secondary upper slider (6) and the secondary side slider (7) to move backward, thereby realizing simultaneous demolding in three directions: backward, downward and right.
2. The mold demolding mechanism capable of simultaneous demolding from three directions according to claim 1, characterized in that... The upper part of the main slider (5) is provided with an upper wedge groove (51), which is inclined with the front lower and the back higher. The lower part of the secondary upper slider (6) is provided with an upper wedge protrusion (61) that cooperates with the upper wedge groove (51). A first elastic reset structure (8) is provided between the upper wedge groove (51) and the upper wedge protrusion (61).
3. A mold demolding mechanism capable of simultaneous demolding from three directions according to claim 2, characterized in that... The first elastic reset structure (8) includes an upper groove (81) in the upper wedge groove (51) near the sliding seat (2), and an upper slider top block (82) on the lower part of the side of the secondary upper slider (6) near the sliding seat. The upper slider top block (82) can be inserted into the upper groove (81), and a first spring (83) is also provided in the upper groove (81).
4. A mold demolding mechanism capable of simultaneous demolding from three directions according to claim 1, characterized in that... The main slider (5) has a side wedge groove (52) on its left side. The side wedge groove (52) is inclined with a thinner front and thicker back. The secondary side slider (7) has a side wedge protrusion (71) on its left side that cooperates with the side wedge groove (52). A second elastic reset structure (9) is provided between the side wedge groove (52) and the side wedge protrusion (71).
5. A mold demolding mechanism capable of simultaneous demolding from three directions according to claim 4, characterized in that... The second elastic reset structure (9) includes a side groove (91) in the side wedge groove (52) near the sliding seat, a second side slider (7) with a second side slider top block (92) inside the side near the sliding seat, the side slider top block (92) can be inserted into the side groove (91), and a second spring (93) is also provided in the side groove (91).
6. A mold demolding mechanism capable of simultaneous demolding from three directions according to claim 1, characterized in that... An insert (4) is also fixed to the right side of the main slider (5).
7. A mold demolding mechanism capable of simultaneous demolding from three directions according to claim 1, characterized in that... The base (1) is provided with a pair of rails (11), and the lower inner side of the pair of rails (11) is provided with a limiting groove (12). The lower sides of the sliding seat (2) are provided with limiting steps that cooperate with the limiting groove (12).
8. A mold demolding mechanism capable of simultaneous demolding from three directions according to claim 1, characterized in that... The upper and lower parts of the rear end of the main slider (5) are provided with main slider fixing blocks (53), and the front end of the sliding seat (2) is provided with a sliding seat fixing groove (21) for the main slider fixing block (53) to be inserted.