CN220614809U - Quick needle replacement and embedding mechanism for injection mold - Google Patents

Quick needle replacement and embedding mechanism for injection mold Download PDF

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Publication number
CN220614809U
CN220614809U CN202322132553.XU CN202322132553U CN220614809U CN 220614809 U CN220614809 U CN 220614809U CN 202322132553 U CN202322132553 U CN 202322132553U CN 220614809 U CN220614809 U CN 220614809U
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China
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insert
needle
cavity
sliding block
die cavity
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CN202322132553.XU
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Chinese (zh)
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黄桑
吴伟生
赵浪
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Linhai Weixing New Building Materials Co Ltd
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Linhai Weixing New Building Materials Co Ltd
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Abstract

The utility model belongs to the technical field of injection molding dies and discloses a quick insert-changing mechanism of an injection molding die, which comprises a die cavity fixing plate and a die cavity plate, wherein the die cavity plate is embedded into the die cavity fixing plate, an insert-needle assembly with a viewing hole is arranged on the die cavity plate, the insert-needle assembly comprises an insert-needle fixing sleeve and an insert needle, the insert needle is arranged on the insert-needle fixing sleeve and is exposed out of a cavity of the die cavity plate, a cavity is arranged in the die cavity fixing plate, one side of the cavity is communicated with the outer side of the die cavity fixing plate, an insert-needle changing mechanism is arranged in the cavity, and the insert-needle fixing sleeve is embedded into the die cavity plate and penetrates through the die cavity plate to be connected with the insert-needle changing mechanism on the die cavity fixing plate, and is used for ejecting the insert-needle assembly to change an insert needle on the insert-needle assembly. The mechanism has simple design, easy processing and strong universality, can be directly replaced on an injection molding machine, and can greatly improve the replacement speed of the insert pin.

Description

Quick needle replacement and embedding mechanism for injection mold
Technical Field
The utility model belongs to the technical field of injection molding dies, and particularly relates to a quick needle replacement and embedding mechanism of an injection mold.
Background
The plastic products often have holes with different sizes, which are important components of the product structure and are widely applied, and the holes are needed to be embedded with specially designed insert needles on the mould to achieve the effect, and along with the increase of the service time and the defects caused by the strength of the insert needles, the insert needles inevitably break and bend to be replaced due to the structural reasons, and if no good auxiliary mechanism is provided, the replacement is troublesome, and even the mould needs to be completely detached.
Disclosure of Invention
The utility model aims to provide a quick needle replacement mechanism for an injection mold, which aims to solve the technical problems.
In order to solve the technical problems, the specific technical scheme of the injection mold rapid needle replacement mechanism is as follows:
the utility model provides an injection mold trades needle mechanism fast, includes die cavity fixed plate and die cavity board, the inside die cavity board embedding die cavity fixed plate, be equipped with the observation hole needle subassembly that the product shaping needs on the die cavity board, the needle subassembly includes needle fixing sleeve and needle, the needle setting is sheathe in the needle fixing to expose in the cavity of die cavity board, be equipped with a cavity in the die cavity fixed plate, cavity one side intercommunication die cavity fixed plate outside is provided with the needle and changes the mechanism in the cavity, the needle fixing sleeve embedding die cavity board links to each other with the needle change mechanism on the die cavity fixed plate through the die cavity board, thereby needle change mechanism is used for ejecting the needle subassembly and changes the needle on the needle subassembly.
Further, the insert needle replacing mechanism comprises a sliding block, a concave groove which is sunken downwards is formed in the sliding block, an inclined plane is formed in the left side of the groove, a saw-tooth-shaped limiting block is arranged on the right side of the groove, an I-shaped groove is formed in the lower portion of the insert needle fixing sleeve, the limiting block is used for being clamped into the I-shaped groove in the lower portion of the insert needle fixing sleeve so as to prevent the insert needle assembly from falling out of the die along with a product, the sliding block moves rightwards to drive the limiting block to be separated from the I-shaped groove in the lower portion of the insert needle fixing sleeve, and when the I-shaped groove in the bottom of the insert needle fixing sleeve contacts the inclined plane on the sliding block, the insert needle assembly is ejected from the cavity plate under the action of the inclined plane.
Further, the insert needle replacing mechanism further comprises a spring, a sliding groove is formed in the lower portion of the sliding block, a step portion is formed in the sliding groove, one end of the spring is abutted to the step portion, the other end of the spring is fixedly connected with the inner wall of the cavity in the cavity fixing plate, and the spring is compressed and stores elastic potential energy in the process of inward movement of the sliding block and is used for resetting the sliding block.
Further, be equipped with the spring guide bar in the spout, the spring guide bar passes inside the spring, and one end fixed connection is at the cavity inner wall of die cavity fixed plate, and the other end slides and sets up in the spout, slides in the spout along with the removal of sliding block, the spring guide bar is used for restricting the circumference motion of spring, prevents the unbalanced deformation bending of spring atress, spring one end butt is on step, the other end and the stiff end butt of spring guide bar.
Further, the insert needle replacing mechanism further comprises a pull rod, one end of the pull rod is fixedly connected with one side of the sliding block, and the other end of the pull rod extends out of one side of the cavity fixing plate and is used for pushing the sliding block.
Further, a pull rod hole is formed in the sliding block and at the other side of the fixed end of the spring guide rod, the pull rod hole is used for fixedly connecting a pull rod, and one end of the pull rod is embedded into the pull rod hole in the sliding block and fixedly connected with the sliding block.
Further, the pull rod is fixedly connected with the sliding block through the headless screw.
The quick needle replacement mechanism for the injection mold has the following advantages: the mechanism has simple design, easy processing and strong universality, can be directly replaced on an injection molding machine, and can greatly improve the replacement speed of the insert pin.
Drawings
FIG. 1 is a schematic diagram of a quick needle replacement mechanism for an injection mold;
FIG. 2 is a schematic view of the structure of the insert pin assembly of the present utility model;
the figure indicates: 1. a cavity fixing plate; 11. a cavity; 2. a cavity plate; 3. inserting a needle; 4. a needle-inlaid fixing sleeve; 41. i-shaped groove; 5. a headless screw; 6. a spring guide rod; 7. a spring; 8. a sliding block; 81. a groove; 811. an inclined plane; 82. a limiting block; 83. a pull rod hole; 84. a chute; 841. a step portion; 9. and (5) a pull rod.
Detailed Description
In order to better understand the purpose, structure and function of the present utility model, the following describes in further detail an injection mold rapid needle replacement mechanism with reference to the accompanying drawings.
As shown in fig. 1 and 2, the quick insert pin replacing mechanism of the injection mold comprises a cavity fixing plate 1 and a cavity plate 2, wherein the cavity plate 2 is embedded into the cavity fixing plate 1 and fixedly installed by screws, and an observation hole insert pin assembly required by product molding is arranged on the cavity plate 2. The insert pin assembly comprises an insert pin fixing sleeve 4 and an insert pin 3, the insert pin fixing sleeve 4 is arranged in the cavity plate 2, the insert pin 3 is arranged on the insert pin fixing sleeve 4, concave-convex grooves on the insert pin 3 and the insert pin fixing sleeve 4 are combined with each other, and the insert pin 3 is exposed in the cavity of the cavity plate 2 to assist product forming. A cavity 11 is arranged in the cavity fixing plate 1, one side of the cavity 11 is communicated with the outer side of the cavity fixing plate 1, an insert needle replacing mechanism is arranged in the cavity 11, the insert needle fixing sleeve 4 is embedded into the cavity plate 2 and penetrates through the cavity plate 2 to be connected with the insert needle replacing mechanism on the cavity fixing plate 1, and the insert needle replacing mechanism is used for ejecting out an insert needle assembly to replace an insert needle 3 on the insert needle assembly.
The insert needle replacing mechanism comprises a headless screw 5, a spring guide rod 6, a spring 7, a sliding block 8 and a pull rod 9, wherein a concave groove 81 is formed in the sliding block 8, a 45-degree inclined surface 811 is formed in the left side of the groove 81, a saw-tooth-shaped limiting block 82 is arranged on the right side of the groove 81, an I-shaped groove 41 is formed below the insert needle fixing sleeve 4, and the limiting block is used for being clamped into the I-shaped groove 41 below the insert needle fixing sleeve 4 so as to prevent an insert needle assembly from falling out of a die along with a product. The sliding block 8 can move in the cavity 11 under the action of external force, when the sliding block 8 moves rightwards to drive the limiting block 82 to separate from the I-shaped groove 41 below the insert pin fixing sleeve 4, and when the I-shaped groove 41 moving to the bottom of the insert pin fixing sleeve 4 contacts the inclined surface 811 on the sliding block 8, the insert pin assembly is ejected out of the cavity plate 2 under the action of the inclined surface 811.
The sliding block 8 below has the spout 84, has step 841 in the spout, is equipped with spring 7 and spring guide bar 6 in the spout 84, and spring guide bar 6 passes inside the spring 7, and one end fixed connection is at cavity 11 inner wall of die cavity fixed plate 1, and the other end slides and sets up in spout 84, and along with the removal of sliding block 8 slides in spout 84, and spring guide bar 6 is used for restricting the circumference motion of spring 7, prevents the unbalanced deformation bending of spring atress, and spring 7 one end butt is on step 841, and the other end is with the stiff end butt of spring guide bar 6, at the in-process of slider 8 inward movement, and spring 7 is compressed, stores elastic potential energy for restoring to the throne slider 8.
The other side of the fixed end of the spring guide rod 6 on the sliding block 8 is provided with a pull rod hole 83, the pull rod hole 83 is used for fixedly connecting a pull rod 9, one end of the pull rod 9 is embedded into the pull rod hole 83 on the sliding block 8, the pull rod 9 and the sliding block 8 are fixedly connected together by using the headless screw 5, and the other end of the pull rod 9 extends out of one side of the cavity fixing plate 1 and is used for pushing the sliding block 8.
The specific working principle is as follows: when the insert 3 needs to be replaced, the pull rod 9 is pushed to move into the cavity fixing plate 1, the sliding block 8 compresses the spring 7 and moves to the right along with the action of the force, meanwhile, the limiting block 82 on the sliding block 8 leaves the I-shaped groove 41 on the insert fixing sleeve 4 along with the increase of the moving distance, the bottom of the insert fixing sleeve 4 stretches out into the cavity plate 2 under the action of the inclined surface on the sliding block 8, when the connecting point of the insert 3 and the insert fixing sleeve 4 stretches out of the surface of the cavity plate 2, the insert 3 can be separated out, after a new insert 3 is replaced, the insert 3 is pushed into the cavity plate 2, the pull rod 9 is slightly placed on the other side, the tail of the insert fixing sleeve 4 is pushed into the groove 81 on the sliding block 8 to be combined with the saw tooth in a limiting mode, and therefore replacement of the insert 3 is completed.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The utility model provides an injection mold trades needle mechanism fast, includes die cavity fixed plate (1) and die cavity board (2), inside die cavity board (2) embedding die cavity fixed plate (1), a serial communication port, be equipped with the observation hole needle subassembly that the goods shaping needs on die cavity board (2), the needle subassembly is including inserting needle fixed cover (4) and needle (3) that inserts, needle (3) set up on inserting needle fixed cover (4) to expose in the cavity of die cavity board (2), be equipped with a cavity (11) in die cavity fixed plate (1), cavity (11) one side intercommunication die cavity fixed plate (1) outside is provided with in cavity (11) and inserts needle (3) and change the mechanism, insert needle fixed cover (4) embedding die cavity board (2) and pass needle (3) on die cavity fixed plate (1) and change the mechanism and link to each other, thereby needle (3) that insert needle subassembly is used for ejecting needle subassembly to change needle (3) on the needle subassembly.
2. The quick insert replacing mechanism for the injection mold according to claim 1, wherein the insert (3) replacing mechanism comprises a sliding block (8), a concave groove (81) is formed in the sliding block (8), a bevel (811) is formed on the left side of the groove (81), a saw-tooth-shaped limiting block (82) is arranged on the right side of the groove, an I-shaped groove (41) is formed below the insert fixing sleeve (4), the limiting block (82) is used for being clamped into the I-shaped groove (41) below the insert fixing sleeve (4) so as to prevent the insert component from being taken out of the mold along with a product, the sliding block (8) moves rightwards to drive the limiting block (82) to be separated from the I-shaped groove (41) below the insert fixing sleeve (4), and when the I-shaped groove (41) moving to the bottom of the insert fixing sleeve (4) contacts the bevel (811) on the sliding block (8), the insert component is ejected from the cavity plate (2) under the action of the bevel (811).
3. The quick-change insert needle mechanism for an injection mold according to claim 2, wherein the insert needle (3) replacement mechanism further comprises a spring (7), a sliding groove (84) is formed below the sliding block (8), a step portion (841) is formed in the sliding groove (84), one end of the spring (7) is abutted to the step portion (841), the other end of the spring is fixedly connected with the inner wall of a cavity (11) in the cavity fixing plate (1), and the spring (7) is compressed and stores elastic potential energy for resetting the sliding block (8) in the inward movement process of the sliding block (8).
4. The injection mold quick-change needle inserting mechanism according to claim 3, wherein a spring guide rod (6) is arranged in the sliding groove (84), the spring guide rod (6) penetrates through the inside of the spring (7), one end of the spring guide rod is fixedly connected to the inner wall of the cavity (11) of the cavity fixing plate (1), the other end of the spring guide rod is arranged in the sliding groove (84) in a sliding mode, the sliding block (8) moves along with the sliding groove (84), the spring guide rod (6) is used for limiting circumferential movement of the spring (7) and preventing the spring (7) from being deformed and bent due to unbalanced stress, one end of the spring (7) is abutted to the step portion (841), and the other end of the spring guide rod is abutted to the fixed end of the spring guide rod (6).
5. The quick insert-changing mechanism for an injection mold according to claim 2, wherein the insert-changing mechanism for an insert (3) further comprises a pull rod (9), one end of the pull rod (9) is fixedly connected with one side of the sliding block (8), and the other end of the pull rod extends out of one side of the cavity fixing plate (1) and is used for pushing the sliding block (8).
6. The quick insert needle changing mechanism for an injection mold according to claim 5, wherein a pull rod hole (83) is formed in the sliding block (8) at the other side of the fixed end of the spring guide rod (6), the pull rod hole (83) is used for fixedly connecting a pull rod (9), and one end of the pull rod (9) is embedded into the pull rod hole (83) in the sliding block (8) and fixedly connected with the sliding block (8).
7. The quick insert-changing mechanism for an injection mold according to claim 5, wherein the pull rod (9) is fixedly connected with the sliding block (8) through a headless screw (5).
CN202322132553.XU 2023-08-09 2023-08-09 Quick needle replacement and embedding mechanism for injection mold Active CN220614809U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322132553.XU CN220614809U (en) 2023-08-09 2023-08-09 Quick needle replacement and embedding mechanism for injection mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322132553.XU CN220614809U (en) 2023-08-09 2023-08-09 Quick needle replacement and embedding mechanism for injection mold

Publications (1)

Publication Number Publication Date
CN220614809U true CN220614809U (en) 2024-03-19

Family

ID=90233989

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322132553.XU Active CN220614809U (en) 2023-08-09 2023-08-09 Quick needle replacement and embedding mechanism for injection mold

Country Status (1)

Country Link
CN (1) CN220614809U (en)

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