CN210148638U - Mould with compound slider secondary heterodromous structure of loosing core - Google Patents

Mould with compound slider secondary heterodromous structure of loosing core Download PDF

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Publication number
CN210148638U
CN210148638U CN201920482172.5U CN201920482172U CN210148638U CN 210148638 U CN210148638 U CN 210148638U CN 201920482172 U CN201920482172 U CN 201920482172U CN 210148638 U CN210148638 U CN 210148638U
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China
Prior art keywords
sliding block
mold
die
turnover part
slider
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CN201920482172.5U
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张小勇
刘强
颜端学
岳明
尹世华
邹雄伟
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Ningbo Gongniu Precision Manufacturing Co Ltd
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Ningbo Gongniu Precision Manufacturing Co Ltd
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Abstract

The utility model discloses a mould with heterodromous structure of loosing core of composite slider secondary, include: a lower die; an upper die; a slider; the driving mechanism is used for driving the sliding block to move back and forth; the overturning component is movably arranged on the upper end surface of the sliding block and can overturn relative to the sliding block; the slide block insert is connected to the upper side of the front end of the turnover part and used for forming a groove in the upper part of the plastic product; the elastic piece is longitudinally embedded in the upper end face of the sliding block, the upper end of the elastic piece is abutted against the lower end face of the turnover part, the upper die is used for pushing the turnover part to turn over after being opened upwards, and the front end of the turnover part drives the sliding block insert to move downwards to separate from the groove. Its technical scheme can realize the structure of secondary incorgruous core pulling and back-off on the shaping plastic product with simple reliable and stable structure, is applicable to the great product of stroke of loosing core, and the mould convenient operation that opens and shuts can effectively improve production efficiency, and affiliated spare part processing is simple and easy, economical and practical.

Description

Mould with compound slider secondary heterodromous structure of loosing core
Technical Field
The utility model relates to a plastic product forming die technical field especially relates to a mould with heterodromous structure of loosing core of composite sliding block secondary.
Background
In the design process of the plastic mold, the product structure is complex, the local characteristics are special, and the mold is designed by adopting mechanisms such as a sliding block, a tunnel sliding block and an inclined top to perform core-pulling and demolding on the local characteristics of the product in different directions.
As shown in fig. 1, the upper part of the existing plastic product 1 is also provided with a groove 11 as a barb, and for the conventional mold, the demolding is difficult due to the complex structure, so the local feature must be subjected to core-pulling demolding by adopting a slide block composite mechanism. However, in the existing mold demolding technology, the demolding mechanism adopted corresponding to the structure generally performs demolding in multiple sliding blocks, multiple mechanisms and multiple directions, and the structure is extremely complex, so that the mold opening and closing actions become extremely inconvenient, and the production efficiency is difficult to improve.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the mold with the composite sliding block secondary anisotropic core pulling structure is provided, which aims to realize secondary anisotropic core pulling with a simple, stable and reliable structure and form an upper inverted buckle structure of a plastic product, and is used for overcoming the technical defects.
The specific technical scheme is as follows:
the utility model provides a mould with compound slider secondary heterodromous structure of loosing core, includes:
a lower die;
the upper die is arranged above the lower die in a longitudinally movable manner, a die cavity is formed between the upper die and the lower die, and the plastic product is molded in the die cavity;
the sliding block is positioned in the die cavity, and the front end of the sliding block is matched with the shape of the plastic product;
the driving mechanism is arranged in the rear side direction of the lower die and the upper die, and the output end of the driving mechanism is connected with the rear end of the sliding block and used for driving the sliding block to move back and forth;
the overturning component is movably arranged on the upper end surface of the sliding block and can overturn relative to the sliding block;
the slide block insert is connected to the upper side of the front end of the turnover part and used for forming a groove in the upper part of the plastic product;
the elastic piece is longitudinally embedded in the upper end face of the sliding block, the upper end of the elastic piece is abutted against the lower end face of the turnover part, the upper die is used for pushing the turnover part to turn over after being opened upwards, and the front end of the turnover part drives the sliding block insert to move downwards to separate from the groove.
Preferably, the rear end face of the upper die is further connected with a barb, the rear end of the turnover part is provided with a flange, and the lower end of the barb is provided with a hook part matched with the flange structure, so that the turnover part is driven to turn over in the anticlockwise direction when the upper die moves upwards.
Preferably, the turnover part is integrally in a seesaw-shaped structure, a fixed seat is fixedly arranged on the upper end face of the sliding block, and the middle part of the turnover part is hinged to the fixed seat through a rotating shaft.
Preferably, the lower side surface of the front end of the turnover part is of an inclined surface structure.
Preferably, the front end of the turnover part is provided with a T-shaped groove from front to back, and the lower end of the sliding block insert is provided with a T-shaped connector matched with the T-shaped groove structure.
Preferably, the number of the slide block insert is one.
Preferably, the upper end surface of the sliding block is downwards provided with a hole groove for accommodating the elastic piece.
Preferably, a stud is further vertically arranged in the hole groove, the elastic element is a spring, and the lower end of the spring is sleeved on the periphery of the stud.
Preferably, the upper end surface of the turnover part is also recessed to form a groove, and the lower end surface of the upper die is provided with a lug matched with the groove structure.
The beneficial effects of the above technical scheme are that:
the mould with compound slider secondary incorgruous structure of loosing core includes the mould, the lower mould, the slider, actuating mechanism, upset part, sub-and elastic component are gone into to the slider, can realize the structure of the incorgruous secondary of structure with simple reliable and stable loosing core and back-off on the shaping plastic product, be applicable to the great product of stroke of loosing core, the mould convenient operation that opens and shuts can effectively improve production efficiency, and affiliated spare part processing is simple and easy, economical and practical, do benefit to later stage maintenance, be convenient for satisfy the assembly needs, and it is little to occupy the slider inner space, the intensity of slider body has been ensured simultaneously.
Drawings
FIG. 1 is a cross-sectional view of a plastic product with a groove according to the prior art;
FIG. 2 is a cross-sectional view of the mold with the composite slider secondary counter-rotating core-pulling structure of the present invention in a stationary mold closing state;
fig. 3 is a cross-sectional view of a first mold opening state of the mold with the composite slider secondary anisotropic core pulling structure of the present invention;
fig. 4 is a sectional view of a second mold opening state of the mold with the composite slider secondary anisotropic core pulling structure of the present invention;
fig. 5 is a cross-sectional view of a third mold opening state of the mold with the composite slider secondary anisotropic core pulling structure of the present invention;
FIG. 6 is an exploded view of the slider assembly in the mold with the secondary anisotropic core pulling structure of the composite slider according to the present invention;
FIG. 7 is a structural view of the assembly of the turnover part in the mold with the secondary anisotropic core pulling structure of the composite slider of the present invention;
fig. 8 is a perspective view of the turnover part and the slider insert in the mold with the composite slider secondary anisotropic core pulling structure of the present invention.
Detailed Description
In order to make the technical means, creation features, achievement purposes and effects of the present invention easy to understand, the following embodiments are specifically illustrated in conjunction with the accompanying drawings.
In the first embodiment, the first step is,
referring to fig. 1 to 8, it is shown that the direction from left to right as the paper surface in fig. 2 is defined as the direction from front to back in this embodiment, and the direction from top to bottom shown on the paper surface is the direction from top to bottom in this embodiment, the utility model provides a mould with compound slider secondary counter core pulling structure includes:
a lower die 3;
the upper die 2 is arranged above the lower die 3 in a longitudinally movable manner, a die cavity is formed between the upper die 2 and the lower die 3, and the plastic product 1 is formed in the die cavity;
the sliding block 4 is positioned in the die cavity, and the front end of the sliding block 4 is matched with the shape of the plastic product 1;
the driving mechanism 9 is arranged in the rear side direction of the lower die 3 and the upper die 2, and the output end of the driving mechanism 9 is connected with the rear end of the sliding block 4 and used for driving the sliding block 4 to move back and forth;
the overturning part 5 is movably arranged on the upper end surface of the sliding block 4 and can overturn relative to the sliding block 4;
at least one slide block insert 6 connected to the upper side of the front end of the turnover part 5 and used for molding a groove 11 on the upper part of the plastic product 1;
the elastic piece 8 is longitudinally embedded in the upper end face of the sliding block 4, the upper end of the elastic piece 8 abuts against the lower end face of the turnover part 5, the upper die 2 is used for pushing the turnover part 5 to turn over upwards after being opened upwards, and the front end of the turnover part 5 drives the sliding block insert 6 to move downwards to separate from the groove 11.
In specific use, firstly, a mold is subjected to injection molding in a mold closing state, and a groove 11 (shown in fig. 2) serving as an inverted buckle is formed on a plastic product 1 through a slide block insert 6; then the upper die 2 is lifted upwards, and because the upper die 2 does not press the turnover part 5 any more, the turnover part 5 is pushed to turn over on the upper end surface of the slide block 4 under the action of the elastic force generated by the compression of the elastic part 8, and at least one slide block insert 6 connected with the upper side of the front end of the turnover part 5 falls along with the turnover part 5 to be separated from the groove 11, so that the first core pulling of the local back-off of the plastic product 1 is realized (as shown in fig. 3 and 4); then the driving mechanism 9 drives the sliding block 4 to move backwards, so as to realize the second core pulling of the whole plastic product 1 (as shown in fig. 5); and finally, after the plastic product 1 is taken out, the sliding block 4 moves forwards to reset, the upper die 2 moves downwards to reset and presses the sliding block 4 to reversely turn over to reset simultaneously so as to play a locking role, and the sliding block returns to the shape shown in the figure 2 again so as to perform injection molding operation again.
Based on above-mentioned technical scheme, mould with compound slider secondary incorgruous structure of loosing core includes mould 2, lower mould 3, slider 4, actuating mechanism 9, upset part 5, slider income sub 6 and elastic component 8, can realize the structure of the incorgruous secondary of loosing core and back-off on the shaping plastic product 1 with simple reliable and stable structure, be applicable to the great product of the stroke of loosing core, mould convenient operation opens and shuts, can effectively improve production efficiency, and affiliated spare part processing is simple and easy, economical and practical, do benefit to later stage maintenance, be convenient for satisfy the assembly needs, and it is little to occupy slider 4 inner space, the intensity of slider 4 body has been ensured simultaneously.
In a preferred embodiment, as shown in fig. 3, 4 and 8, a barb 10 is connected to the rear end surface of the upper mold 2, the rear end of the turning member 5 has a flange 52, and the lower end of the barb 10 has a hook portion matched with the structure of the flange 52 for driving the turning member 5 to turn when the upper mold 2 moves upward. Specifically, at the initial stage of the upward movement of the upper mold 2, the inverted component 5 is driven by the barb 10 to invert in the counterclockwise direction, after a predetermined stroke, the flange 52 and the hook part are separated from each other (as shown in fig. 3), and at this time, the elastic element 8 further performs an inverting action and a state maintaining action on the inverted component 5 (as shown in fig. 4).
As a further preferred embodiment, as shown in fig. 6 and 7, the turning member 5 is a seesaw-like structure as a whole, a fixing seat 7 is fixedly installed on the upper end surface of the sliding block 4, and the middle part of the turning member 5 is hinged to the fixing seat 7 through a rotating shaft 51. Specifically, the rotating shaft 51 passes through the middle of the turning part 5, and both ends of the rotating shaft are respectively rotatably inserted into the fixing seat 7. Furthermore, the lower side surface of the front end of the turning component 5 is of an inclined surface structure so as to ensure that the turning component can turn anticlockwise and abut against the upper end surface of the sliding block 4 before the sliding block insert 6 is separated from the reverse buckle. Furthermore, the front end of the turning part 5 is provided with a T-shaped groove 53 from front to back, and the lower end of the sliding block insert 6 is provided with a T-shaped connector 61 matched with the T-shaped groove 53 in structure, so that the mutual assembly, disassembly and maintenance are facilitated.
As a further preferred embodiment, in the present embodiment, the number of the slide inserts 6 is one, and the number of the slide inserts corresponds to one of the grooves 11 on the plastic product 1, but obviously, the number of the slide inserts is not limited to this, and a plurality of slide inserts 6 and even a plurality of corresponding slide blocks 4 can be provided according to the actual product requirement, and the above purpose can be achieved only by correspondingly providing a plurality of slide inserts 6 horizontally arranged in parallel. Further, the driving mechanism 9 is an oil cylinder, but may be a component such as an electric push rod and an air cylinder, or may be implemented by a motor and a transmission mechanism. Furthermore, the rear end of the sliding block 4 is provided with a T-shaped groove structure, and the front end of the output shaft of the oil cylinder is provided with a T-shaped connector matched with the T-shaped groove structure in shape, so as to achieve the purpose of mutual connection, but not limited to this.
In a further preferred embodiment, the elastic member 8 is a spring, but may be another similar member such as an elastic rubber member. Further, the upper end face of the sliding block 4 is provided with a hole groove for containing the elastic piece 8, specifically, the sliding block 4 is composed of a front sliding block and a rear sliding block which are connected into a whole, and the hole groove is formed in the rear sliding block. Furthermore, a stud is vertically arranged in the hole groove, and the lower end of the spring is sleeved on the periphery of the stud to play a role in positioning and preventing deviation. Furthermore, the upper end face of the turnover part 5 is also concavely provided with a groove 54, and the lower end face of the upper die 2 is provided with a convex block matched with the groove 54 in structure, so that the positioning and the pressing in the die closing process are facilitated. In addition, all the above components are arranged in the die device, the upper die 2 can be driven by an additional lifting mechanism to lift, the fixed installation of the lower die 3 and the driving mechanism 9 is realized by the frame, and the two sides of the sliding block 4 are provided with sliding rail structures which are conventional in the art, so that the detailed description is omitted here.
In the second embodiment, the first embodiment of the method,
the present embodiment provides an operation method of a mold having a composite slider secondary anisotropic core pulling structure as described in the first embodiment, including a mold opening stroke, a mold closing stroke, and a stroke of injection molding a plastic product 1 in a mold closing state, and forming a groove 11 as an inverted buckle on the plastic product 1 by a slider insert 6, where the mold opening stroke includes:
step a, the upper die 2 is lifted upwards, the turnover part 5 is driven by the barb 10 to turn over anticlockwise, and the sliding block insert 6 moves downwards along with the movement of the turnover part 5;
step b, the barb 10 is separated from the turnover part 5, the upper die 2 is continuously lifted upwards, the elastic part 8 pushes the turnover part 5 to be further turned anticlockwise, and the sliding block insert 6 continuously moves downwards to be completely separated from the groove 11;
step c, the driving mechanism 9 drives the sliding block 4 to move backwards;
the stroke of die assembly comprises:
step one, a driving mechanism 9 drives a sliding block 4 to move forwards to an initial position;
and step two, the upper die 2 moves downwards, the barb 10 moves downwards along with the upper die 2, the lower end surface of the upper die 2 presses the turnover part 5 to turn clockwise and return to the initial position, and the elastic part 8 enters a compressed state.
The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. The utility model provides a mould with compound slider secondary heterodromous structure of loosing core which characterized in that includes:
a lower die (3);
the upper die (2) is arranged above the lower die (3) in a longitudinally movable mode, a die cavity is formed between the upper die (2) and the lower die (3), and the plastic product (1) is formed in the die cavity;
the sliding block (4) is positioned inside the die cavity, and the front end of the sliding block (4) is matched with the plastic product (1) in shape;
the driving mechanism (9) is arranged in the rear side direction of the lower die (3) and the upper die (2), and the output end of the driving mechanism (9) is connected with the rear end of the sliding block (4) and used for driving the sliding block (4) to move back and forth;
the overturning component (5) is movably arranged on the upper end surface of the sliding block (4) and can overturn relative to the sliding block (4);
at least one slide block insert (6) connected to the upper side of the front end of the turnover part (5) and used for molding a groove (11) at the upper part of the plastic product (1);
elastic component (8), vertically inlay and locate the up end of slider (4), just the upper end of elastic component (8) with the lower terminal surface of upset part (5) offsets, be used for go up mould (2) upwards promote after the die sinking upwards upset part (5) upset, and by the front end drive of upset part (5) slider income sub (6) downstream is in order to deviate from slot (11).
2. The mold with the composite slider secondary counter-rotating core pulling structure according to claim 1, wherein the rear end surface of the upper mold (2) is further connected with a barb (10), the rear end of the turnover part (5) is provided with a flange (52), and the lower end of the barb (10) is provided with a hook part matched with the flange (52) in structure, so as to drive the turnover part (5) to turn over counterclockwise when the upper mold (2) moves upward.
3. The mold with the composite sliding block secondary counter-rotating core pulling structure according to claim 1, wherein the turnover part (5) is of a seesaw-shaped structure as a whole, a fixed seat (7) is fixedly arranged on the upper end face of the sliding block (4), and the middle part of the turnover part (5) is hinged to the fixed seat (7) through a rotating shaft (51).
4. The mold with the secondary counter-rotating core-pulling structure of the composite sliding block according to claim 1, 2 or 3, wherein the lower side surface of the front end of the turnover part (5) is of an inclined surface structure.
5. The mold with the secondary anisotropic core pulling structure of the composite slider according to claim 4, wherein the front end of the turnover part (5) is provided with a T-shaped groove (53) from front to back, and the lower end of the slider insert (6) is provided with a T-shaped connector (61) matched with the T-shaped groove (53) in structure.
6. The mold with the composite sliding block secondary counter-rotating core pulling structure according to claim 1, wherein the number of the sliding block inserts (6) is one.
7. The mold with the composite sliding block secondary counter-rotating core pulling structure according to claim 1, wherein the upper end surface of the sliding block (4) is provided with a hole groove downwards for accommodating the elastic piece (8).
8. The mold with the composite sliding block secondary anisotropic core pulling structure according to claim 7, wherein a stud is further erected in the hole groove, the elastic member (8) is a spring, and the lower end of the spring is sleeved on the periphery of the stud.
9. The mold with the composite sliding block secondary counter-rotating core pulling structure according to claim 1, wherein the upper end surface of the turnover part (5) is further recessed to form a groove (54), and the lower end surface of the upper mold (2) is provided with a projection matched with the groove (54) in structure.
CN201920482172.5U 2019-04-11 2019-04-11 Mould with compound slider secondary heterodromous structure of loosing core Active CN210148638U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110126214A (en) * 2019-04-11 2019-08-16 宁波公牛精密制造有限公司 A kind of mold and its operation method with the secondary incorgruous pulled core structure of composite slider

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110126214A (en) * 2019-04-11 2019-08-16 宁波公牛精密制造有限公司 A kind of mold and its operation method with the secondary incorgruous pulled core structure of composite slider

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