Lateral core-pulling mechanism of injection mold

Abstract

The utility model discloses a lateral core-pulling mechanism of an injection mold. The lateral core-pulling mechanism comprises an injection product, a plate A, a fixed block I, a fixed block II, a plate B, an external movable rod, a rolling shaft group I, a rolling shaft group II, a pull rod, a guide block, a pressing block I, a pressing block II, a sliding block, a slide, a rear mold insert and a rear mold. The lateral core-pulling demolding mechanism is used for lateral core-pulling demolding for injection molding, the lateral core-pulling action of an injection molding product is realized through the matched movement of the external pull rod and the rolling shaft group, the internal space of the mold is saved, the overall design of the mold is simplified, and the development efficiency of the mold is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of injection mould side core-pulling mechanism, for solving injection product lateral concave-convex structure demoulding problem. BACKGROUND

[0002] Injection product is often designed with lateral concave-convex structure, and traditional core-pulling mechanism usually adopts inclined ejector mechanism or hydraulic core-pulling mechanism, but inclined ejector mechanism can cause overall design of mould to be complex, and hydraulic core-pulling mechanism is too high in cost, so a kind of lateral core-pulling mechanism with simple structure and low manufacturing cost needs to be developed, and the core-pulling action of mould is ensured to be stable and reliable. SUMMARY

[0003] A kind of injection mould side core-pulling mechanism, including injection product, A plate, fixed block one, fixed block two, B plate, external dynamic lever, roller group one, roller group two, pull rod, guide block, pressure block one, pressure block two, sliding block, line, back mould insert and back mould, characterized by: the injection product is combined by two sections of tubular structure with different diameters, the end of larger diameter is towards the outside of mould, and the end of smaller diameter is towards the inside of mould, the upper end of external dynamic lever passes between two rollers in roller group one and is fixedly installed on the side surface of A plate, the lower end of external dynamic lever passes between two rollers in roller group two, and roller group two is fixedly installed on the side surface of B plate, guide block is fixedly installed on B plate, pull rod is cooperatively installed in the recess with same shape on the guide block, one end of pull rod is fastened to roller group one, and the other end of pull rod is fastened to sliding block by rivet, pressure block one and pressure block two are fixedly installed on B plate, and sliding block is cooperatively installed in the side rail of pressure block one and pressure block two, line is fixedly installed on sliding block, back mould insert is fixedly installed on line, and the protruding part of back mould insert is cooperatively installed in the recess with same shape on back mould, back mould is fixedly installed on B plate, fixed block one and fixed block two are fixedly installed on two ends on B plate, and A plate is cooperatively installed on fixed block one and fixed block two.

[0004] The injection mould side core-pulling mechanism can pull back mould insert away from injection product to complete lateral core-pulling action by A plate driving external dynamic lever outside mould and using external dynamic lever and roller group to pull pull rod, so as to save internal space of mould, simplify overall design of mould and reduce manufacturing cost of mould. BRIEF DESCRIPTION OF DRAWINGS

[0005] Figure 1 It is overall structure schematic view of injection mould side core-pulling mechanism.

[0006] Figure 2 It is local structure schematic view of injection mould side core-pulling mechanism.

[0007] Figure 3This is a partial structural diagram of the side core-pulling mechanism of an injection mold.

[0008] Figure 4 This is a partial structural diagram of the side core-pulling mechanism of an injection mold.

[0009] Figure 5 This is a schematic diagram of roller assembly one and roller assembly two.

[0010] Figure 6 This is a partial structural diagram of the side core-pulling mechanism of an injection mold.

[0011] Figure 7 This is a schematic diagram of the rear mold insert structure.

[0012] Figure 8 This is a schematic diagram of the structure of an injection-molded product.

[0013] The components are: 1. Injection molded product; 2. Plate A; 3. Fixing block one; 4. Fixing block two; 5. Plate B; 6. External moving rod; 7. Roller assembly one; 8. Roller assembly two; 9. Tie rod; 10. Guide block; 11. Pressure block one; 12. Pressure block two; 13. Sliding block; 14. Slide; 15. Rear mold insert; 16. Rear mold. Detailed Implementation

[0014] As attached Figures 1-8 As shown, a side core-pulling mechanism for an injection mold includes an injection molded product 1, an A plate 2, a first fixing block 3, a second fixing block 4, a B plate 5, an external moving rod 6, a first roller assembly 7, a second roller assembly 8, a pull rod 9, a guide block 10, a first pressure block 11, a second pressure block 12, a sliding block 13, a slide block 14, a rear mold insert 15, and a rear mold 16.

[0015] As attached Figure 8 As shown, the injection molded product 1 is composed of two tubular structures with different diameters. The end with the larger diameter faces the outside of the mold, and the end with the smaller diameter faces the inside of the mold. The protruding part of the rear mold insert 15 corresponds to the internal cavity of the injection molded product 1.

[0016] As attached Figures 1-8As shown, when the mold is opened, the A plate 2 moves upward away from the fixed block one 3 and the fixed block two 4, thereby driving the external moving rod 6 to move upward. The upward movement of the external moving rod 6 drives the roller shaft set one 7 to move outward of the mold. In this process, the external moving rod 6 and the roller shaft set one 7 cooperate to convert the vertical movement of the A plate 2 into horizontal movement, and the cooperation of the roller shaft set two 8 and the lower end of the external moving rod 6 ensures the stability of the movement. The movement of the roller shaft set one 7 outward of the mold drives the pull rod 9 to move outward of the mold along the groove on the guide block 10. The outward movement of the pull rod 9 drives the sliding block 13 to move outward of the mold along the slide rails of the two end blocks one 11 and the block two 12. The outward movement of the sliding block 13 drives the row position 14 and the rear mold insert 15 to move outward of the mold, until the protruding part of the rear mold insert 15 completely separates from the inside of the injection molded product 1, and the lateral core pulling action is completed.

[0017] After the injection molding cycle is completed, the A plate 2 moves downward to contact the fixed block one 3 and the fixed block two 4, thereby driving the external moving rod 6 to move downward. The downward movement of the external moving rod 6 drives the roller shaft set one 7 to move inward of the mold. The inward movement of the roller shaft set one 7 drives the pull rod 9 to move inward of the mold, thereby driving the sliding block 13, the row position 14 and the rear mold insert 15 to move inward of the mold to the initial position, preparing for the next injection molding cycle. The mechanism places some parts outside the mold, which can save the internal space of the mold, simplify the overall design of the mold, and reduce the manufacturing cost of the mold.

[0018] The above is the preferred embodiment of the present application, which aims to explain the content and idea of the present application, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A side core-pulling mechanism of injection mold, comprising injection product (1), A plate (2), fixed block one (3), fixed block two (4), B plate (5), external moving lever (6), roller group one (7), roller group two (8), pull rod (9), guide block (10), pressing block one (11), pressing block two (12), sliding block (13), line position (14), back mold insert (15) and back mold (16), characterized in that, The injection product (1) is combined by two sections of different diameter tubular structure, the larger diameter end faces the outside of the mold, the smaller diameter end faces the inside of the mold, the upper end of the external moving rod (6) passes between the two rollers in the roller group one (7) and is fixedly installed on the side of the A plate (2), the lower end of the external moving rod (6) passes between the two rollers in the roller group two (8), the roller group two (8) is fixedly installed on the side of the B plate (5), the guide block (10) is fixedly installed on the B plate (5), the pull rod (9) is cooperatively installed in the groove with the same shape on the guide block (10), one end of the pull rod (9) is tightly connected to the roller group one (7), the other end of the pull rod (9) is tightly connected to the lower end of the sliding block (13) through the rivet, the pressing block one (11) and the pressing block two (12) are fixedly installed on the B plate (5), the two ends of the sliding block (13) are cooperatively installed in the side rails of the pressing block one (11) and the pressing block two (12) respectively, the line position (14) is fixedly installed on the sliding block (13), the rear mold insert (15) is fixedly installed on the line position (14), the protruding part of the rear mold insert (15) is cooperatively installed in the groove with the same shape on the rear mold (16), the rear mold (16) is fixedly installed on the B plate (5), the fixed block one (3) and the fixed block two (4) are fixedly installed on the two ends of the B plate (5) respectively, the A plate (2) is cooperatively installed on the fixed block one (3) and the fixed block two (4) in a flush manner.

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