CN216100195U

CN216100195U - Inclined pulling structure of precision mold

Info

Publication number: CN216100195U
Application number: CN202121810077.7U
Authority: CN
Inventors: 宁建强
Original assignee: Guangdong Well Technology Co ltd
Current assignee: Guangdong Well Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-03-22
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses an inclined drawing structure of a precision mold, wherein an inclined through hole is formed in a rear mold core, the inclined through hole is inclined towards the lower right side, a vertical through hole is formed in a rear mold B plate, the left upper end of the inclined through hole is communicated with an injection molding cavity, the right lower end of the inclined through hole is communicated with the vertical through hole, a rear mold inner slide is arranged in the inclined through hole, a shoveling machine is arranged in the vertical through hole, the bottom end of the shoveling machine is fixed to the top of a supporting plate, an inclined plane is arranged on the left upper side of the top end of the shoveling machine, and the right lower end of the rear mold inner slide is in inclined sliding fit with the inclined plane of the shoveling machine. The injection molding die cavity has the advantages that the structural design is reasonable, (1) the injection molding die cavity can complete the molding of the second back-off of the product by utilizing the structural characteristics of the back die inner slide; (2) through being equipped with horizontal line position, and then make the moulding cavity of moulding plastics can utilize the structural feature of horizontal line position to accomplish the shaping of the first back-off of product.

Description

Inclined pulling structure of precision mold

Technical Field

The utility model relates to the technical field of dies, in particular to an inclined drawing structure of a precision die.

Background

The die is various dies and tools which are used for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly by changing the physical state of a formed material, the article is called as an industrial parent, and a blank is made into a tool of a finished piece with a specific shape and a specific size under the action of external force.

Referring to fig. 3, 4 and 5, the existing product (19) is a turntable with an internal structure of an air purifier of a certain brand, the size of the product is 240mmx200mmx24mm, the product belongs to a medium-sized and small-sized product, and the product needs to be produced in mass; the structural product has a bellied knob structure of stirring of a department, and this structure can control the carousel rotation function, and the relative mould opening direction of mould of structure has first back-off (20), second back-off (21), and the drawing of patterns direction of first back-off (20), second back-off (21) and product (19) becomes 45 jiaos, and how to make the product can the shaping important problem that the urgent need was solved through designing the slide structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a precise die inclined drawing structure which can enable a second back-off of a product to be molded.

In order to achieve the purpose, the technical scheme of the utility model provides a precise mold inclined-drawing structure which comprises a front mold A plate and a rear mold B plate, wherein the front mold A plate is positioned above the rear mold B plate, the front mold A plate and the rear mold B plate can be used for mold closing and mold opening, a supporting plate is arranged below the rear mold B plate, and the supporting plate can move up and down relative to the rear mold B plate; the bottom of the front mould A plate is provided with a front mould core, the top of the rear mould B plate is provided with a rear mould core, and when the front mould A plate and the rear mould B plate are closed, the front mould core and the rear mould core enclose an injection mould cavity; be equipped with the slope through-hole in the back mould benevolence, the slope through-hole inclines towards right side below, be equipped with vertical through-hole in the back mould B board, the upper left end of slope through-hole with the die cavity intercommunication of moulding plastics, the right lower extreme of slope through-hole with vertical through-hole intercommunication, be equipped with back mould internal row position in the slope through-hole, be equipped with the shovel machine in the vertical through-hole, the bottom mounting of shovel machine the top of layer board, the upper left side on the top of shovel machine is equipped with the inclined plane, the right lower extreme of back mould internal row position with the inclined plane of shovel machine carries out slope sliding fit.

Furthermore, a first limiting step is arranged on the inner wall of the inclined through hole, a second limiting step is arranged on the outer wall of the inner slide of the rear mold, the opening of the first limiting step faces to the lower right, the opening of the second limiting step faces to the upper left, and the first limiting step is in limiting fit with the second limiting step; the right lower extreme of back mould inner row position is equipped with the arcwall face, the arcwall face of back mould inner row position with the inclined plane of shovel machine carries out slope sliding fit.

Furthermore, the top edge of the supporting plate is provided with a plurality of pull rods, the bottom edge of the rear die B plate is provided with a plurality of first mounting holes, second mounting holes are arranged above the first mounting holes, and communication holes are formed between the first mounting holes and the second mounting holes; the pull rod sequentially penetrates through the first mounting hole, the communicating hole and the second mounting hole upwards, a spring is sleeved at the bottom end of the pull rod, a limiting column is arranged at the top end of the pull rod and is located in the first mounting hole, the limiting column is located in the second mounting hole, and the outer diameter of the spring and the outer diameter of the limiting column are larger than the diameter of the communicating hole.

Furthermore, a thimble panel is arranged below the supporting plate, a thimble bottom plate is arranged at the bottom of the thimble panel, a thimble is arranged at the top of the thimble bottom plate, and the thimble upwards sequentially penetrates through the thimble panel, the supporting plate, the rear mold B plate and the rear mold core; the ejector pin panel and the ejector pin bottom plate can move up and down relative to the supporting plate and the rear die B plate, and the ejector pins can eject products on the rear die core.

Furthermore, the supporting plate is connected with the ejector pin panel and the ejector pin bottom plate through mechanical mold locking buckles.

Furthermore, an oil cylinder is arranged at the bottom of the front mould A plate and is positioned at the left side of the front mould core; the left side of the injection molding cavity is provided with a transverse through hole, a transverse slide is arranged in the transverse through hole, the left end of the transverse slide is connected with the oil cylinder through an oil cylinder connecting block, and the oil cylinder can drive the oil cylinder connecting block and the transverse slide to perform left-right reciprocating motion.

Furthermore, an electronic switch is arranged at the bottom of the oil cylinder.

Furthermore, a hot runner plate is arranged at the top of the front mould A plate, and a needle point type open hot nozzle is arranged at the bottom of the hot runner plate; and a glue injection runner is arranged in the front mould A plate, the glue injection runner penetrates through the front mould core downwards and then is communicated with the injection mould cavity, and the needle point type open hot nozzle is inserted into the glue injection runner downwards.

In summary, the technical scheme of the utility model has the following beneficial effects: the structure of the utility model is reasonable in design, (1) the rear mould inner slide is arranged in the inclined through hole, the shovel machine is arranged in the vertical through hole, the bottom end of the shovel machine is fixed at the top of the supporting plate, the left upper side of the top end of the shovel machine is provided with the inclined plane, and the right lower end of the rear mould inner slide is in inclined sliding fit with the inclined plane of the shovel machine, so that when the front mould core and the rear mould core are closed: at first the layer board upward movement, then the layer board drives shovel machine upward movement, and shovel machine drive back mould inner row position carries out the tilt motion towards the upper left side afterwards, and the last back mould inner row position's upper left end enters into the type of moulding plastics intracavity, and then makes the type of moulding plastics and can utilize the structural feature completion product's of back mould inner row position the shaping of second back-off. (2) Be equipped with horizontal through-hole through the left side of the die cavity of moulding plastics, be equipped with horizontal line position in the horizontal through-hole, the left end of horizontal line position is connected with the hydro-cylinder through the hydro-cylinder connecting block to when the compound die is carried out with the back mould benevolence in the front mould benevolence: the oil cylinder drives the oil cylinder connecting block and the transverse slide to move rightwards, and then the right end of the transverse slide enters the injection molding cavity, so that the injection molding cavity can complete the molding of a first reverse buckle of a product by utilizing the structural characteristics of the transverse slide.

Drawings

FIG. 1 is a schematic sectional view of the present invention in mold clamping;

FIG. 2 is a schematic cross-sectional view of the present invention when the mold is opened;

FIG. 3 is a schematic cross-sectional view of a product made in accordance with the present invention;

FIG. 4 is a schematic top perspective view of a product made in accordance with the present invention;

FIG. 5 is a schematic bottom perspective view of a product made in accordance with the present invention;

description of reference numerals: 1-pin point type open hot nozzle, 2-transverse row position, 3-rear die inner row position, 4-front die core, 5-rear die core, 6-oil cylinder connecting block, 7-oil cylinder, 8-shovel machine, 9-front die A plate, 10-rear die B plate, 11-supporting plate, 12-mechanical die locking buckle, 13-pull rod, 14-spring, 15-thimble panel, 16-thimble bottom plate, 17-thimble, 18-electronic switch, 19-product, 20-first reverse buckle and 21-second reverse buckle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, but the technical solutions in the embodiments of the present invention are not limited to the scope of the present invention.

In the present invention, for a clearer description, the following explanation is made: an observer viewing the attached fig. 1, the left side of the observer is set as left, the right side of the observer is set as right, the front of the observer is set as front, the rear of the observer is set as rear, the upper side of the observer is set as upper, and the lower side of the observer is set as lower, it should be noted that the terms "front end", "rear end", "left side", "right side", "middle part", "upper part", "lower part" and the like in the text indicate the orientation or positional relationship set on the basis of the attached drawings, and only for the convenience of clearly describing the present invention, but not for indicating or implying that the structure or component indicated must have a specific orientation, be configured in a specific orientation, and thus cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used merely for purposes of clarity or simplicity of description and are not to be construed as indicating or implying relative importance or quantity.

Referring to fig. 1 and 2, the present embodiment provides a precision mold inclined drawing structure, including a front mold a plate 9 and a rear mold B plate 10, where the front mold a plate 9 is located above the rear mold B plate 10, the front mold a plate 9 and the rear mold B plate 10 can be used for mold closing and mold opening, a supporting plate 11 is located below the rear mold B plate 10, and the supporting plate 11 can move up and down relative to the rear mold B plate 10; the bottom of the front mould A plate 9 is provided with a front mould core 4, the top of the rear mould B plate 10 is provided with a rear mould core 5, and when the front mould A plate 9 and the rear mould B plate 10 are closed, the front mould core 4 and the rear mould core 5 enclose an injection mould cavity; be equipped with the slope through-hole in back mould benevolence 5, the slope through-hole inclines towards right side below, be equipped with vertical through-hole in the back mould B board 10, the upper left end and the die cavity intercommunication of moulding plastics of slope through-hole, the right lower extreme and the vertical through-hole intercommunication of slope through-hole, be equipped with back mould internal row position 3 in the slope through-hole, be equipped with shovel machine 8 in the vertical through-hole, the bottom mounting of shovel machine 8 is at the top of layer board 11, the upper left side on shovel machine 8's top is equipped with the inclined plane, the slide fit that inclines is carried out with shovel machine 8's inclined plane to the right lower extreme of back mould internal row position 3, the theory of operation: the acting force generated by the inclined surface on the inner row position of the rear die is towards the upper left, so that when the shovel moves upwards, the inner row position of the rear die can tilt towards the upper left, and correspondingly, when the shovel moves downwards, the inner row position of the rear die can tilt towards the lower right under the action of gravity and the like. Certainly, in order to accelerate the speed of the rear mold inner row position moving to the lower right, the rear mold inner row position can move to the lower right in an inclined mode under the action of elastic force in a mode of installing a spring in an inclined through hole, and therefore quick reset is achieved. The function is as follows: be equipped with back mould internal row position in through the slope through-hole, be equipped with the shovel machine in the vertical through-hole, the bottom mounting of shovel machine is at the top of layer board, and the upper left side on the top of shovel machine is equipped with the inclined plane, and the right lower extreme of back mould internal row position carries out oblique sliding fit with the inclined plane of shovel machine to mould benevolence in the front carries out the slope sliding fit with back mould benevolence compound die: at first the layer board upward movement, then the layer board drives shovel machine upward movement, and shovel machine drive back mould inner row position carries out the tilt motion towards the upper left side afterwards, and the last back mould inner row position's upper left end enters into the type of moulding plastics intracavity, and then makes the type of moulding plastics and can utilize the structural feature completion product's of back mould inner row position the shaping of second back-off.

Specifically, the inner wall of slope through-hole is equipped with first spacing step, and the outer wall of back mould interior slide 3 is equipped with the spacing step of second, and the opening of first spacing step is towards right side below, and the opening of the spacing step of second is towards upper left side, and first spacing step carries out spacing cooperation with the spacing step of second, and the effect: through the spacing cooperation of first spacing step and second spacing step to carry out the positioning action to the inclined motion of back mould interior slide, make it all can move the same position at every turn. The right lower extreme of back mould inner row position 3 is equipped with the arcwall face, and the arcwall face of back mould inner row position 3 carries out slope sliding fit with the inclined plane of shovel machine 8, and the effect: the cooperation of arcwall face and inclined plane can reduce the production of frictional force.

Specifically, the top edge of the supporting plate 11 is provided with a plurality of pull rods 13, the bottom edge of the rear die B plate 10 is provided with a plurality of first mounting holes, second mounting holes are arranged above the first mounting holes, and communication holes are formed between the first mounting holes and the second mounting holes; pull rod 13 upwards passes first mounting hole, intercommunicating pore, second mounting hole in proper order, and the bottom cover of pull rod 13 has spring 14, and pull rod 13's top is equipped with spacing post, and spring 14 is located first mounting hole, and spacing post is located the second mounting hole, and the external diameter of spring 14, spacing post is greater than the diameter of intercommunicating pore, acts: when the layer board moves downwards, because spacing post can't pass through the intercommunicating pore, consequently will produce the constraint effect to the downstream of layer board, and when the layer board moves upwards, because the spring can't pass through the intercommunicating pore, consequently will produce the constraint effect to the upward movement of layer board, can also provide cushioning effect through the spring simultaneously.

Specifically, a thimble panel 15 is arranged below the supporting plate 11, a thimble bottom plate 16 is arranged at the bottom of the thimble panel 15, a thimble 17 is arranged at the top of the thimble bottom plate 16, and the thimble 17 sequentially penetrates through the thimble panel 15, the supporting plate 11, the rear mold B plate 10 and the rear mold core 5 upwards; the ejector pin panel 15 and the ejector pin base plate 16 can move up and down relative to the supporting plate 11 and the rear mold B plate 10, and the ejector pins 17 can eject products on the rear mold core 5. The function is as follows: after the mold is opened, the product can be ejected out of the rear mold core through the ejector pin, so that an operator can take down the product conveniently.

Specifically, the supporting plate 11 is connected with the thimble panel 15 and the thimble base plate 16 through the mechanical mold locking buckle 12, and functions as follows: the ejector pin panel 15 and the ejector pin bottom plate 16 are controlled by the mechanical mold locking buckle 12, when the supporting plate 11 moves downwards to a specified stroke (such as 20mm), the mold locking buckle releases ejection limitation, and the ejector pin ejects a product in the rear mold core. Of course, the mechanical mold locking buckle can be replaced by other mold locking buckles with the same function according to the needs, and the mold locking buckle or the mechanical mold locking buckle is the prior art and can be purchased in the existing market, so the description is omitted.

Specifically, the bottom of the front mould A plate 9 is also provided with an oil cylinder 7, and the oil cylinder 7 is positioned at the left of the front mould core 4; the left side of the injection molding cavity is provided with a transverse through hole, a transverse moving position 2 is arranged in the transverse through hole, the left end of the transverse moving position 2 is connected with an oil cylinder 7 through an oil cylinder connecting block 6, and the oil cylinder 7 can drive the oil cylinder connecting block 6 and the transverse moving position 2 to do left-right reciprocating motion. The function is as follows: be equipped with horizontal through-hole through the left side of the die cavity of moulding plastics, be equipped with horizontal line position in the horizontal through-hole, the left end of horizontal line position is connected with the hydro-cylinder through the hydro-cylinder connecting block to when the compound die is carried out with the back mould benevolence in the front mould benevolence: the oil cylinder drives the oil cylinder connecting block and the transverse slide to move rightwards, and then the right end of the transverse slide enters the injection molding cavity, so that the injection molding cavity can complete the molding of a first reverse buckle of a product by utilizing the structural characteristics of the transverse slide.

Specifically, the bottom of the oil cylinder 7 is provided with an electronic switch 18, which has the following functions: through setting up electronic switch to only when electronic switch received the information that horizontal line position exited from first back-off, electronic switch just can control the mould and carry out the die sinking.

Specifically, the top of the front mold A plate 9 is provided with a hot runner plate, and the bottom of the hot runner plate is provided with a needle point type open hot nozzle 1; be equipped with the injecting glue runner in the front mould A board 9, the injecting glue runner passes front mould benevolence 4 back downwards and communicates with the die cavity of moulding plastics, and the open hot mouth of pin point formula 1 is in inserting the injecting glue runner downwards, the effect: and injecting glue into the injection molding cavity through the glue injection runner by the needle point type open hot nozzle. Preferably, the glue feeding mode selects three-point open type needle point hot nozzle glue feeding, so that the glue material cost can be saved.

Specifically, referring to fig. 1 and 2, based on the two structures of the first reverse buckle and the second reverse buckle, there are very strict requirements on the mold opening sequence of the mold, and at the end of injection molding, the mold opening sequence is as follows: (1) under the driving of the oil cylinder, the stroke of leftward movement of the transverse slide is 20 mm; (2) opening the die from the parting surface I, moving the supporting plate downwards to drive the shovel machine to move downwards together, performing inclined motion towards the lower right at the inner row position of the rear die, and finishing core pulling at the inner row position of the rear die; (3) the mould is opened from the parting surface II, and the front mould A plate is separated from the rear mould B plate; (4) when the supporting plate moves for 20mm, the ejection limit of the mold locking buckle is removed, the ejector pin upwards ejects the product, the ejection stroke is 15mm, and all actions are finished.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims

1. A precision mold inclined drawing structure comprises a front mold A plate (9) and a rear mold B plate (10), wherein the front mold A plate (9) is positioned above the rear mold B plate (10), mold closing and mold opening can be carried out on the front mold A plate (9) and the rear mold B plate (10), a supporting plate (11) is arranged below the rear mold B plate (10), and the supporting plate (11) can move up and down relative to the rear mold B plate (10); a front mold core (4) is arranged at the bottom of the front mold A plate (9), a rear mold core (5) is arranged at the top of the rear mold B plate (10), and when the front mold A plate (9) and the rear mold B plate (10) are closed, the front mold core (4) and the rear mold core (5) enclose an injection molding cavity; the method is characterized in that: be equipped with the slope through-hole in back mould benevolence (5), the slope through-hole inclines towards right side below, be equipped with vertical through-hole in back mould B board (10), the upper left end of slope through-hole with the die cavity intercommunication of moulding plastics, the right lower extreme of slope through-hole with vertical through-hole intercommunication, be equipped with back mould inner slide (3) in the slope through-hole, be equipped with shovel machine (8) in the vertical through-hole, the bottom mounting of shovel machine (8) is in the top of layer board (11), the upper left side on the top of shovel machine (8) is equipped with the inclined plane, the right lower extreme of back mould inner slide (3) with the inclined plane of shovel machine (8) carries out slope sliding fit.

2. The precision mold inclined drawing structure according to claim 1, characterized in that: the inner wall of the inclined through hole is provided with a first limiting step, the outer wall of the rear mould inner slide (3) is provided with a second limiting step, the opening of the first limiting step faces to the lower right side, the opening of the second limiting step faces to the upper left side, and the first limiting step and the second limiting step are in limiting fit; the right lower end of back mould inner row position (3) is equipped with the arcwall face, the arcwall face of back mould inner row position (3) with the inclined plane of shovel machine (8) carries out slope sliding fit.

3. The precision mold inclined drawing structure according to claim 1, characterized in that: the top edge of the supporting plate (11) is provided with a plurality of pull rods (13), the bottom edge of the rear die B plate (10) is provided with a plurality of first mounting holes, second mounting holes are arranged above the first mounting holes, and communication holes are formed between the first mounting holes and the second mounting holes; the pull rod (13) upwards penetrates the first mounting hole, the communicating hole and the second mounting hole in sequence, a spring (14) is sleeved at the bottom end of the pull rod (13), a limiting column is arranged at the top end of the pull rod (13), the spring (14) is located in the first mounting hole, the limiting column is located in the second mounting hole, and the outer diameter of the spring (14) and the outer diameter of the limiting column are larger than the diameter of the communicating hole.

4. The precision mold slant-drawing structure according to any one of claims 1 to 3, wherein: a thimble panel (15) is arranged below the supporting plate (11), a thimble bottom plate (16) is arranged at the bottom of the thimble panel (15), a thimble (17) is arranged at the top of the thimble bottom plate (16), and the thimble (17) sequentially penetrates through the thimble panel (15), the supporting plate (11), the rear mold B plate (10) and the rear mold core (5) upwards; the ejector pin panel (15) and the ejector pin bottom plate (16) can move up and down relative to the supporting plate (11) and the rear die B plate (10), and the ejector pins (17) can eject products on the rear die core (5).

5. The precision mold inclined drawing structure according to claim 4, wherein: the supporting plate (11) is connected with the ejector pin panel (15) and the ejector pin bottom plate (16) through a mechanical mold locking buckle (12).

6. The precision mold slant-drawing structure according to any one of claims 1 to 3 and 5, wherein: an oil cylinder (7) is further arranged at the bottom of the front mold A plate (9), and the oil cylinder (7) is located on the left of the front mold core (4); the left side of the injection molding cavity is provided with a transverse through hole, a transverse moving position (2) is arranged in the transverse through hole, the left end of the transverse moving position (2) is connected with an oil cylinder (7) through an oil cylinder connecting block (6), and the oil cylinder (7) can drive the oil cylinder connecting block (6) and the transverse moving position (2) to carry out left-right reciprocating motion.

7. The precision mold inclined drawing structure according to claim 6, wherein: an electronic switch (18) is arranged at the bottom of the oil cylinder (7).

8. The precision mold slant-drawing structure according to any one of claims 1 to 3, 5 and 7, wherein: the top of the front mould A plate (9) is provided with a hot runner plate, and the bottom of the hot runner plate is provided with a needle point type open hot nozzle (1); and a glue injection runner is arranged in the front mould A plate (9), the glue injection runner penetrates through the front mould core (4) downwards and then is communicated with the injection mould cavity, and the needle point type open hot nozzle (1) is inserted into the glue injection runner downwards.