CN114643684B - Inclined pin sliding block structure - Google Patents
Inclined pin sliding block structure Download PDFInfo
- Publication number
- CN114643684B CN114643684B CN202011504967.5A CN202011504967A CN114643684B CN 114643684 B CN114643684 B CN 114643684B CN 202011504967 A CN202011504967 A CN 202011504967A CN 114643684 B CN114643684 B CN 114643684B
- Authority
- CN
- China
- Prior art keywords
- slider
- block
- product
- slider body
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000004579 marble Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 9
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of injection molds, in particular to a taper pin sliding block structure. The taper pin slider structure includes: the sliding block beam block is provided with a vertical surface and an inclined surface; one end of the slider body is provided with a vertical surface and an inclined surface corresponding to the slider binding block, and the other end of the slider body is provided with a reverse hook and a bulge of a molded product; the elastic unit is arranged in the slider body and pushes the slider body to move towards the direction of the slider binding block; one end of the oblique pin body is arranged in the slider body, and a gap is reserved between the oblique pin body and the slider body for the slider body to move. According to the slide block taper pin structure, after a product is formed, when the die is opened, the slide block body is prevented from retreating due to the constraint of the vertical surface of the slide block binding block, the slide block body pulls the inverted hook of the product, the female die is separated, the product is prevented from sticking to the female die, after the female die is separated, the slide block body is prevented from constraining the slide block body, the slide block body retreats under the action of the elastic unit, the inverted hook of the product is withdrawn, and then the slide block body and the taper pin body eject the product, so that the product is prevented from sticking to the slide block body and the taper pin body.
Description
[ field of technology ]
The invention relates to the technical field of injection molds, in particular to a taper pin sliding block structure.
[ background Art ]
When the bicolor product is injection molded, a bicolor mold is used, namely the male mold is the same, and the female mold is different. Referring to fig. 1 to 3, a schematic diagram, an exploded view and a side view of a dual color product are shown respectively. As shown in the figure, the product 10 is a push-button type bicolor product, the first shot product 11 is a hard adhesive, and the second shot product 12 is a soft adhesive. In injection molding of the product 10, since the first shot 11 has a large number of female mold shapes and a small number of male mold shapes, the product 10 sticks to the female mold.
To cope with this problem, as shown in fig. 3, a general process is to make a 0.1mm step, i.e., a 0.1mm width barb 13 at the male mold shape of the product 10, pull the product 10, preventing the product 10 from sticking to the female mold. Referring to fig. 4, a schematic diagram of a prior art two-color product formed by taper pins is shown. In the prior art, the taper pin 30 is arranged in the male die plate 20 of the die, the head of the taper pin 30 forms the barb 13 with the width of 0.1mm, and as the male die shape of the product 10 is small and the inclination of the bottom of the product 10 is large, the product 10 cannot be positioned, so that when the taper pin 30 is obliquely withdrawn from the product 10, the product 10 is adhered to either the left taper pin 30 or the right taper pin 30, and the product 10 is difficult to take out.
In view of this, it is necessary to develop a slide block structure for the taper pin to solve the problem of sticking the taper pin.
[ invention ]
It is therefore an object of the present invention to provide a tilt pin slider structure which avoids sticking of the product to the tilt pin when molding the product.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
an oblique pin slide block structure which is arranged in a mould and is used for forming a product, wherein a male mould shape of the product is provided with a bulge and a barb, and the oblique pin slide block structure comprises:
the sliding block beam block is provided with a vertical surface and an inclined surface;
one end of the slider body is provided with a vertical surface and an inclined surface corresponding to the slider binding block, and the other end of the slider body is provided with a reverse hook and a bulge of a molded product;
the elastic unit is arranged in the slider body and pushes the slider body to move towards the direction of the slider binding block;
one end of the oblique pin body is arranged in the slider body, and a gap is reserved between the oblique pin body and the slider body for the slider body to move.
Further, the product is a double-shot product, the mold is a double-shot mold, a movable stop block is arranged below the sliding block beam block, a shutter is arranged on the sliding block beam block in the first shot mold and connected with the movable stop block, and the shutter is not arranged on the sliding block beam block in the second shot mold.
Further, two pins are arranged in the slider body, and the pins penetrate through the oblique pin body and the slider body.
Further, the elastic unit comprises a sleeve, a spring and a marble, wherein the sleeve is a hollow sleeve, the spring is arranged in the sleeve, one end of the spring props against the sliding block body, the other end of the spring props against the marble, and the marble extends out of the sleeve or retracts into the sleeve.
Further, the width of the barb is 0.1mm, and the width of the gap is 0.3mm.
Further, the vertical surface of the slider binding block is higher than the insert of the female mold core into the product.
Compared with the prior art, in the slide block taper pin structure, after a product is formed, when the die is opened, the slide block body is prevented from retreating due to the constraint of the vertical surface of the slide block binding block, the slide block body pulls the inverted hook of the product, the female die is separated, the sticking of the product to the female die is avoided, when the female die is separated, the slide block body is prevented from retreating under the action of the elastic unit, the inverted hook of the product is withdrawn, and then the slide block body and the taper pin body eject the product, so that the sticking of the slide block body and the taper pin body of the product is avoided.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a two-color product.
Fig. 2 shows an exploded view of a two-color product.
Fig. 3 shows a side view of a two-color product.
FIG. 4 is a schematic diagram of a prior art two-color product formed by taper pins.
FIG. 5 is a schematic diagram of the slide taper pin structure of the present invention in a mold.
FIG. 6 is a schematic view of a molded product of the slider taper pin structure of the present invention.
FIG. 7 is a schematic diagram showing the assembly of the slider taper pin structure of the present invention.
FIG. 8 is an exploded view of the slider taper pin structure of the present invention.
FIG. 9 is a cross-sectional view of the slider taper pin structure of the present invention.
FIG. 10 is an enlarged view of a portion of the slider taper pin structure of the present invention.
[ detailed description ] of the invention
For a further understanding of the objects, technical effects and technical means of the present invention, reference will now be made in detail to the accompanying drawings.
Fig. 5 to 7 show a schematic diagram of the slide inclined pin structure of the present invention in a mold, a schematic diagram of a molded product of the slide inclined pin structure of the present invention, and a combined schematic diagram of the slide inclined pin structure of the present invention, respectively.
The invention provides a taper pin sliding block structure, which is arranged in a mould and is used for forming a product 10, wherein a convex 14 and a barb 13 with the width of 0.1mm are arranged at the male mould shape of the product 10, the barb 13 is used for pulling the product 10 and preventing the product 10 from sticking to a female mould, and as the convex 14 and the barb 13 are arranged at two sides of the product, the two sides of the product 10 are formed by the taper pin sliding block structure, and the taper pin sliding block structure comprises:
the sliding block binding block 100 is fixedly connected with a female die plate of a die, the sliding block binding block 100 is positioned in the male die plate 20 when the die is closed, and the sliding block binding block 100 is provided with a vertical surface 101 and an inclined surface 102 which forms an inclined angle with the vertical surface 101;
a slider body 200 provided in the male mold plate 20 of the mold, wherein one end of the slider body 200 has a vertical surface 101 and an inclined surface 102 corresponding to the slider bundle block 100, and when the mold is closed, the vertical surface 101 and the inclined surface 102 of the slider bundle block 100 push the inclined surface 102 of the slider body 200 to gradually return the slider body 200, the vertical surface 101 of the slider bundle block 100 is attached to the vertical surface 101 of the slider body 200 to restrain the slider body 200 and prevent the slider body 200 from retreating, and the other end of the slider bundle block 100 has a structure corresponding to the barbs 13 and the protrusions 14 of the product 10 to mold the barbs 13 and the protrusions 14 of the product 10;
an elastic unit 300 provided in the slider body 200, for pushing the slider body 200 to move in the direction of the slider bundle block 100 after the mold is opened;
one end of the oblique pin body 400 is arranged in the slider body 200, and a gap 401 is reserved between the oblique pin body 400 and the slider body 200 for the slider body 200 to move.
In a preferred embodiment, as shown in fig. 1 and 2, the product 10 is a two-shot product, the mold is a two-shot mold, the male mold portions of the two-shot mold are identical, and the female mold portions are different. In the preferred embodiment, a movable stop block (not shown) is disposed below the slider bundle block, and a shutter is disposed in the slider bundle block in the first injection mold and connected with the movable stop block, so that after the first injection product 11 is molded, the slider bundle block 100 moves along with the female mold plate, and the slider bundle block 100 drives the movable stop block to move upwards through the shutter to continuously constrain the slider block 200, so that the slider block 200 does not retract, the male mold part rotates to the female mold part of the second injection mold, and the second injection product 12 is continuously molded; the shutter is not arranged on the slider block 100 in the two-shot mold, and is not fixedly connected with the movable stop block, after the two-shot product 12 is molded, the slider block 100 moves along with the master mold plate, the movable stop block does not move upwards, the slider block 100 and the movable stop block do not restrict the slider block 200 any more, the slider block 200 retreats, and the product 10 is ejected after demolding.
Fig. 8 is an exploded view of the slider taper pin structure of the present invention. Two pins 201 are disposed in the slider body 200, the pins 201 penetrate through the oblique pin body 400 and the slider body 200, on one hand, the pins 201 connect the oblique pin body 400 and the slider body 200, and on the other hand, the pins 201 can serve as guide rails when the slider body 200 moves.
In a preferred embodiment, the elastic unit 300 includes a sleeve 302, a spring and a marble 301, wherein the sleeve 302 is a hollow sleeve, the spring is disposed in the sleeve 302, one end of the spring abuts against the slider body 200, the other end abuts against the marble 301, and the marble 301 extends out of the sleeve 302 or retracts into the sleeve 302, and of course, the marble 301 only partially extends out of the sleeve 302 and does not fall out completely. Specifically, when the mold is closed, the spring is in a compressed state, and the marble 301 is pressed back into the sleeve 302; when the mould is opened, the spring is in an extended state, and the marble 301 extends out of the sleeve 302.
In a preferred embodiment, the width of the gap 401 is 0.3mm, and the width of the gap 401 is greater than the width of the barbs 13, i.e. the movement stroke of the slider body 200 is greater than the width of the barbs 13, so that the slider body 200 is completely withdrawn from the barbs 13 of the product 10.
The vertical surface 101 of the slider block 100 is greater than the height of the insert of the master mold insert into the product 10, so that the master mold is released when the slider block 200 is restrained from backing, and the product 10 is further prevented from sticking to the master mold.
Referring to fig. 9 and 10, a cross-sectional view of the slide angle pin structure of the present invention and a partial enlarged schematic view of the slide angle pin structure of the present invention are shown respectively. When the mold starts to open, the slider block 100 moves together with the master mold, but the slider body 200 does not retract due to the constraint of the slider block 100, and the slider body 200 pulls the barbs 13 of the product 10 so that the product 10 does not stick to the master mold when the master mold is released. The mold continues to open, the vertical surface 101 of the slider bundle block 100 is separated from the vertical surface 101 of the slider body 200, the slider body 200 is not constrained any more, the slider body 200 is retracted by 0.3mm under the action of the spring in the elastic unit 300, and the 0.1mm hooks 13 of the product 10 are withdrawn. Then, under the ejection action of the ejection structure of the mold, the oblique pin body 400 and the slider body 200 are ejected together, the slider body 200 ejects the product 10 by pushing the protrusion 14 of the product 10, and the product 10 does not stick to the slider body 200 or the oblique pin body 300. In actual production, the mold is transversely placed, the male mold part and the female mold part are arranged in the left-right direction, and the product 10 automatically falls off after being jacked up.
When the mold is closed, the elastic balls 301 of the elastic unit 300 are pressed back into the sleeve 302 by the mold core, the slider block 100 stirs the slider block 200 to return and tightens the slider block 200, after the mold is opened 10, the slider block 100 restrains the slider block 200 from backing, so that the product 10 is prevented from sticking to the female mold, when the female mold is separated, the slider block 100 does not restrain the slider block 200 any more, the slider block 200 backs under the action of the elastic unit 300, the barb 13 of the product 10 is withdrawn, and then the slider block 200 and the oblique pin body 400 eject the product 10, so that the product 10 is prevented from sticking to the slider block 200 and the oblique pin body 400.
The technical principles of the present invention have been described above in connection with specific embodiments, which are provided for the purpose of explaining the principles of the present invention and are not to be construed as limiting the scope of the present invention in any way. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (5)
1. An oblique pin slide block structure which is arranged in a mould and is used for forming a product, wherein a male mould shape of the product is provided with a bulge and a barb, and the oblique pin slide block structure comprises:
the sliding block beam block is provided with a vertical surface and an inclined surface;
one end of the slider body is provided with a vertical surface and an inclined surface corresponding to the slider binding block, and the other end of the slider body is provided with a reverse hook and a bulge of a molded product;
the elastic unit is arranged in the slider body and pushes the slider body to move towards the direction of the slider binding block;
one end of the inclined pin body is arranged in the slider body, and a gap is reserved between the inclined pin body and the slider body for the slider body to move;
the product is a double-shot product, the mold is a double-shot mold, a movable stop block is arranged below the sliding block beam block, a shutter is arranged on the sliding block beam block in the first-shot mold and connected with the movable stop block, and the shutter is not arranged on the sliding block beam block in the second-shot mold; after the product is molded, the slider beam block moves along with the female template, the slider beam block drives the movable stop block to move upwards through the shutter to continuously restrain the slider body, so that the slider body does not retreat, after the product is molded, the slider beam block moves along with the female template, the movable stop block does not move upwards, the slider beam block and the movable stop block do not restrain the slider body any more, and the slider body retreats.
2. The tilt pin slider structure of claim 1, wherein two pins are provided in the slider body, the pins extending through the tilt pin body and slider body.
3. The angle pin slider structure of claim 1, wherein the elastic unit comprises a sleeve, a spring and a marble, the sleeve is a hollow sleeve, the spring is arranged in the sleeve, one end of the spring abuts against the slider body, the other end of the spring abuts against the marble, and the marble extends out of the sleeve or retracts into the sleeve.
4. The angle pin slider structure of claim 1 wherein the width of the barb is 0.1mm and the width of the gap is 0.3mm.
5. The angle pin slider structure of claim 1 wherein the height of the vertical surface of the slider bundle is greater than the height of the insert inserted into the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504967.5A CN114643684B (en) | 2020-12-18 | 2020-12-18 | Inclined pin sliding block structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011504967.5A CN114643684B (en) | 2020-12-18 | 2020-12-18 | Inclined pin sliding block structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114643684A CN114643684A (en) | 2022-06-21 |
| CN114643684B true CN114643684B (en) | 2023-12-12 |
Family
ID=81990361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011504967.5A Active CN114643684B (en) | 2020-12-18 | 2020-12-18 | Inclined pin sliding block structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114643684B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201098987Y (en) * | 2007-08-28 | 2008-08-13 | 汉达精密电子(昆山)有限公司 | Male die inside and outside composite slide block |
| CN201907173U (en) * | 2010-12-24 | 2011-07-27 | 捷荣模具工业(东莞)有限公司 | Double-color injection mould |
| CN102773970A (en) * | 2011-05-10 | 2012-11-14 | 苏州汉扬精密电子有限公司 | Clutch type slide block mechanism |
| CN103909617A (en) * | 2013-01-03 | 2014-07-09 | 汉达精密电子(昆山)有限公司 | Slide block exiting mechanism |
| CN105563762A (en) * | 2014-10-10 | 2016-05-11 | 汉达精密电子(昆山)有限公司 | Master mold angled core-pulling structure |
| CN107379420A (en) * | 2017-08-29 | 2017-11-24 | 昆山金莓电子有限公司 | Double-color mold sliding block resetting structure and injection mold |
| CN207549343U (en) * | 2018-01-04 | 2018-06-29 | 上海维科精密模塑有限公司 | A kind of injection mould slide block core-pulling mechanism twice |
| CN209888065U (en) * | 2019-03-18 | 2020-01-03 | 常州海卓精密模具有限公司 | Double-colored injection mould slider mechanism of loosing core in proper order |
-
2020
- 2020-12-18 CN CN202011504967.5A patent/CN114643684B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201098987Y (en) * | 2007-08-28 | 2008-08-13 | 汉达精密电子(昆山)有限公司 | Male die inside and outside composite slide block |
| CN201907173U (en) * | 2010-12-24 | 2011-07-27 | 捷荣模具工业(东莞)有限公司 | Double-color injection mould |
| CN102773970A (en) * | 2011-05-10 | 2012-11-14 | 苏州汉扬精密电子有限公司 | Clutch type slide block mechanism |
| CN103909617A (en) * | 2013-01-03 | 2014-07-09 | 汉达精密电子(昆山)有限公司 | Slide block exiting mechanism |
| CN105563762A (en) * | 2014-10-10 | 2016-05-11 | 汉达精密电子(昆山)有限公司 | Master mold angled core-pulling structure |
| CN107379420A (en) * | 2017-08-29 | 2017-11-24 | 昆山金莓电子有限公司 | Double-color mold sliding block resetting structure and injection mold |
| CN207549343U (en) * | 2018-01-04 | 2018-06-29 | 上海维科精密模塑有限公司 | A kind of injection mould slide block core-pulling mechanism twice |
| CN209888065U (en) * | 2019-03-18 | 2020-01-03 | 常州海卓精密模具有限公司 | Double-colored injection mould slider mechanism of loosing core in proper order |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114643684A (en) | 2022-06-21 |
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