CN109648804B - Sliding block anti-retreating structure for injection mold - Google Patents
Sliding block anti-retreating structure for injection mold Download PDFInfo
- Publication number
- CN109648804B CN109648804B CN201910131797.1A CN201910131797A CN109648804B CN 109648804 B CN109648804 B CN 109648804B CN 201910131797 A CN201910131797 A CN 201910131797A CN 109648804 B CN109648804 B CN 109648804B
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- block
- shaped
- locking block
- shaped slot
- plane
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- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 230000002512 anti-withdrawal effect Effects 0.000 claims abstract description 6
- 238000001746 injection moulding Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method 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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C2045/338—Mould parts with combined axial and transversal movements
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 molds, in particular to a sliding block anti-withdrawal structure for an injection mold, which comprises a hydraulic cylinder, a linkage seat, a sliding block and a T-shaped block, wherein a piston shaft of the hydraulic cylinder is fixedly connected with the linkage seat, a longitudinal section of the T-shaped block is inserted into and fixedly connected with a first inclined surface of the linkage seat, the sliding block is provided with a T-shaped slot, a transverse section of the T-shaped block is inserted into the T-shaped slot and can slide relative to the T-shaped slot in a demolding state, the anti-withdrawal structure also comprises a first locking block and a second locking block which are arranged at two ends of the linkage seat, the first locking block and the second locking block jointly lock the sliding block in the injection state, the first locking block is inserted into the T-shaped slot and the sliding block slides downwards along the inclined direction of the T-shaped slot, and compared with the prior art, the first locking block and the second locking block are propped against the sliding block together in the injection state, so that the sliding block slides relative to the sliding seat under the action of the extrusion force in the injection process is prevented.
Description
Technical Field
The invention relates to the technical field of molds, in particular to a sliding block anti-withdrawal structure for an injection mold.
Background
The slide block is a mold assembly which can slide in a direction perpendicular to or at a certain angle with the mold opening and closing direction in the mold opening and closing operation of the mold. The slide block is used when the product structure makes the mold unable to be demolded normally. In the manufacturing and production process of the die, the design of the front die oil cylinder core-pulling mechanism is unavoidable for a plurality of dies, when the core-pulling mechanism is used, the clamping force of the injection molding machine can not be used for locking the sliding block, at the moment, the sliding block is retreated under the action of the clamping force to be the most common failure mode of the core-pulling mechanism, and the failure of the core-pulling mechanism can cause the defects of multiple glue, flash and the like of a product, thereby inducing the generation of a series of interlocking problems such as die development failure, die test frequency increase, greatly increased cost, unqualified product quality and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a slide block anti-withdrawal structure for an injection mold, which has good anti-withdrawal effect and long service life.
The aim of the invention is achieved by the following technical scheme: the utility model provides a slider anti-retreating structure for injection mold, including pneumatic cylinder, linkage seat, slider and T type piece, the piston axle and the linkage seat rigid coupling of pneumatic cylinder, the longitudinal segment of T type piece inserts and the rigid coupling is at the first inclined plane of linkage seat, T type fluting has been seted up to the slider, in the deciduous membrane state, the horizontal section of T type piece inserts in the T type fluting and can slide for T type fluting, anti-retreating structure still includes first locking piece and the second locking piece that set up in the linkage seat both ends, under the state of moulding plastics, first locking piece and second locking piece lock the slider jointly, under the drawing of patterns state, first locking piece inserts in the T type fluting, and the slider slides down along the slant of T type fluting.
A movable gap for inserting the first locking block is reserved between the T-shaped slot and the T-shaped block positioned in the T-shaped slot; in the demolding state, the first locking block is inserted into the movable gap.
The length of the first locking block is smaller than or equal to the width of the T-shaped block and can pass through the T-shaped slot.
Under the injection molding state, the first locking block limits the sliding block to slide upwards along the oblique direction of the T-shaped slot.
And in the injection molding state, the second locking block limits the sliding block to slide downwards along the T-shaped groove.
The bottom surface of the linkage seat consists of a horizontal first plane and an inclined first inclined plane, the top end surface of the sliding block consists of a second plane parallel to the first plane and a second inclined plane parallel to the first inclined plane, a first right-angle notch and a second right-angle notch are correspondingly formed in the second plane and the second inclined plane, the transverse surfaces of the first right-angle notch and the second right-angle notch are parallel to the second plane, the end part of the T-shaped block, which is close to the first right-angle notch, is fixedly connected with the first locking block, the first plane, which is close to the second right-angle notch, of the linkage seat is fixedly connected with the second locking block, and the transverse bottom end surfaces of the first locking block and the second locking block are parallel to the second plane; in the die assembly state, the bottom end surface of the first locking block is propped against the transverse surface of the first right-angle notch, and the transverse bottom end surface and the longitudinal side surface of the second locking block are respectively propped against the transverse surface and the longitudinal surface of the second right-angle notch.
The application has the beneficial effects that: compared with the prior art, the sliding block anti-retreating structure for the injection mold has the advantages that the first locking block and the second locking block are propped against the sliding block together in an injection molding state, so that the sliding block is prevented from sliding relative to the sliding seat, and the problem that the sliding block slides under the action of extrusion force in the injection process in the past is solved.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic view of a slide block anti-back structure for an injection mold according to the present invention in a mold clamping state.
Fig. 2 is an exploded view of a slide block anti-back structure for an injection mold according to the present invention.
Fig. 3 is a schematic view of a structure of the slide block anti-back structure for an injection mold in the rear view of the present invention.
Fig. 4 is an enlarged view at a in fig. 3.
Fig. 5 is another visual schematic diagram of a slide block anti-back structure for an injection mold according to the present invention.
Fig. 6 is an enlarged view at B in fig. 5.
Fig. 7 is another visual exploded view of a slide block anti-back structure for an injection mold according to the present invention.
Description of the drawings: the linkage seat 1, the first plane 11, the first inclined plane 12, the T-shaped block 2, the longitudinal section 21, the transverse section 22, the sliding block 3, the second plane 31, the second inclined plane 32, the T-shaped slot 33, the piston shaft 4, the hydraulic cylinder 5, the first right-angle notch 61, the transverse plane 611, the longitudinal plane 612, the second right-angle notch 62, the first locking block 7, the second locking block 8, the transverse bottom end surface 81, the longitudinal side surface 82 and the movable gap 9.
Detailed Description
The invention will be further described with reference to the following examples.
The invention relates to a concrete implementation mode of a sliding block anti-retreating structure for an injection mold, which is shown in fig. 1 and 2, and comprises a hydraulic cylinder 5, a linkage seat 1, a sliding block 3 and a T-shaped block 2, wherein a piston shaft 4 of the hydraulic cylinder 5 is fixedly connected with the linkage seat 1, the bottom end surface of the linkage seat 1 consists of a horizontal first plane 11 and an inclined first inclined plane 12, a longitudinal section 21 of the T-shaped block 2 is inserted into and fixedly connected with the first inclined plane 12 of the linkage seat 1, the sliding block 3 is provided with a T-shaped slot 33, a transverse section 22 of the T-shaped block 2 is inserted into the T-shaped slot 33 and can slide relative to the T-shaped slot 33 in an assembled state, and the top end surface of the sliding block 3 consists of a second plane 31 parallel to the first plane 11 and a second inclined plane 32 parallel to the first inclined plane 12.
As an improvement, please see fig. 2, the second plane 31 and the second inclined plane 32 are correspondingly provided with a first right angle notch 61 and a second right angle notch 62, the transverse surface 611 of the first right angle notch 61 and the transverse surface of the second right angle notch 62 are parallel to the second plane 31, the end part of the T-shaped block 2 close to the first right angle notch 61 is fixedly connected with a first locking block 7, the length of the first locking block 7 is smaller than or equal to the width of the T-shaped block 2 and can pass through a T-shaped slot 33, the first plane 11 of the linkage seat 1 is fixedly connected with a second locking block 8, the transverse bottom end surface of the first locking block 7 and the transverse bottom end surface 81 of the second locking block 8 are parallel to the second plane 31, and a movable gap 9 for the first locking block 7 to slide into the T-shaped slot 33 is reserved between the T-shaped slot 33 and the T-shaped block 2 positioned therein; in the mold closing state, please refer to fig. 4 and 6, the bottom end surface of the first locking block 7 abuts against the lateral surface 611 of the first right angle notch 61, the longitudinal surface 612 of the first right angle notch 61 is not in contact with the first locking block 7, and the lateral bottom end surface 81 and the longitudinal side surface 82 of the second locking block 8 abut against the lateral surface and the longitudinal surface of the second right angle notch 62, respectively.
In the working process of the slide block anti-back structure for the injection mold of this embodiment, please see fig. 1 to 7, under the injection state, the hydraulic cylinder 5 drives the piston shaft 4 to work, the piston shaft 4 drives the linkage seat 1 to move towards the left side in fig. 1, the injection mold will apply a pressure to the slide block, so that the second inclined plane 32 of the slide block 3 will be attached to the first inclined plane 12 of the linkage seat 1 (the top surface of the transverse section of the T-shaped block 2 is close to the top surface in the T-shaped slot 33), when the pressure is too large, the slide block 3 will have a trend to slide along the first inclined plane 12 or the second inclined plane 32, and the anti-back structure of this embodiment sets the first locking block 7 and the first right-angle notch 61, and the second locking block 8 and the second right-angle notch 62, which are mutually locked, respectively, at the left and right ends of the slide block 3, so as to limit the slide block 3 to slide along the inclined plane, the transverse faces of the right-angle structures of the first right-angle notch 61 and the second notch 62 can bear the vertical downward pressure applied by the T-shaped block 2 or the right-angle seat 1, and the longitudinal faces of the slide block 3 can bear the downward movement of the right-angle structures, so as to prevent the slide block from moving back; in addition, a movable gap 9 for the first locking block 7 to slide into the T-shaped slot 33 is reserved between the T-shaped slot 33 and the T-shaped block 2 positioned in the T-shaped slot, the movable gap 9 is positioned at the upper part of the T-shaped block 2 in the mode locking state, and the first locking block 7 is positioned at the first right-angle notch 61; in the release state, the clearance 9 is located at the bottom of the T-block 2 and the first locking block 7 is located in the T-slot 33. In the demolding process, the hydraulic cylinder 5 drives the piston shaft 4 to retract towards the right in the direction of the figure 1 and drives the first locking block 7 to translate rightwards, the first locking block 7 slides into the T-shaped groove 33, the second locking block 8 translates leftwards and releases the limit on the sliding block 3, then the sliding block 3 can slide along the second inclined plane 32 to realize the demolding action, in addition, a section of buffer space can be provided for the sliding block 3 through the movable gap 9 between the T-shaped groove 33 and the T-shaped block 2, and in the working process, the sliding block 3 can be subjected to the action of pressure after moving a certain distance relative to the linkage seat 1, so that the damage caused by the instant overlarge stress of the sliding block 3 is avoided, and the service life is further prolonged.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (4)
1. The slide block anti-withdrawal structure for the injection mold comprises a hydraulic cylinder, a linkage seat, a slide block and a T-shaped block, wherein a piston shaft of the hydraulic cylinder is fixedly connected with the linkage seat, a longitudinal section of the T-shaped block is inserted into and fixedly connected with a first inclined surface of the linkage seat, a T-shaped slot is formed in the slide block, and a transverse section of the T-shaped block is inserted into the T-shaped slot and can slide relative to the T-shaped slot in a demolding state, and the slide block is characterized by further comprising a first locking block and a second locking block which are arranged at two ends of the linkage seat;
The bottom surface of the linkage seat consists of a horizontal first plane and an inclined first inclined plane, the top end surface of the sliding block consists of a second plane parallel to the first plane and a second inclined plane parallel to the first inclined plane, the second plane and the second inclined plane are correspondingly provided with a first right angle notch and a second right angle notch, the transverse surfaces of the first right angle notch and the second right angle notch are parallel to the second plane, the end part of the T-shaped block, which is close to the first right angle notch, is fixedly connected with the first locking block, the first plane, which is close to the second right angle notch, of the linkage seat is fixedly connected with the second locking block, and the transverse bottom end surfaces of the first locking block and the second locking block are parallel to the second plane; in the die assembly state, the bottom end surface of the first locking block is propped against the transverse surface of the first right-angle notch, and the transverse bottom end surface and the longitudinal side surface of the second locking block are respectively propped against the transverse surface and the longitudinal surface of the second right-angle notch;
a movable gap for the first locking block to slide into the T-shaped slot is reserved between the T-shaped slot and the T-shaped block positioned in the T-shaped slot; in the demolding state, the T-shaped block slides into the movable gap, so that the first locking block slides into the T-shaped groove.
2. The slide block withdrawal preventing structure for an injection mold according to claim 1, wherein the length of the first locking block is smaller than or equal to the width of the T-shaped block and is capable of passing through the T-shaped slot.
3. The slide block withdrawal preventing structure for an injection mold according to claim 1, wherein the first locking block restricts the slide block from sliding obliquely upward along the T-shaped slot in the injection molding state.
4. The slide block withdrawal preventing structure for an injection mold according to claim 1, wherein the second locking block restricts the slide block from sliding obliquely downward along the T-shaped slot in the injection molding state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910131797.1A CN109648804B (en) | 2019-02-22 | 2019-02-22 | Sliding block anti-retreating structure for injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910131797.1A CN109648804B (en) | 2019-02-22 | 2019-02-22 | Sliding block anti-retreating structure for injection mold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109648804A CN109648804A (en) | 2019-04-19 |
| CN109648804B true CN109648804B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910131797.1A Active CN109648804B (en) | 2019-02-22 | 2019-02-22 | Sliding block anti-retreating structure for injection mold |
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| Country | Link |
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| CN (1) | CN109648804B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140484B (en) * | 2019-06-28 | 2022-07-15 | 汉达精密电子(昆山)有限公司 | Slide block delay mechanism and mold |
| CN112140485B (en) * | 2019-06-28 | 2022-07-15 | 汉达精密电子(昆山)有限公司 | Angle pin mechanism and mould in slider |
| CN113427710A (en) * | 2021-06-02 | 2021-09-24 | 温州长江汽车电子有限公司 | Anti-retraction injection molding production mold |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990025597U (en) * | 1997-12-17 | 1999-07-05 | 김영환 | Shock Absorber of Slide Block for Injection Mold |
| JP2003266490A (en) * | 2002-03-19 | 2003-09-24 | Denso Corp | Mold for injection molding |
| CN202264362U (en) * | 2011-10-18 | 2012-06-06 | 青岛海尔模具有限公司 | Oil cylinder core-pulling mechanism for preventing injection molding retraction and mold |
| CN105415619A (en) * | 2014-09-22 | 2016-03-23 | 宁波东昊汽车部件有限公司 | Oil cylinder receding prevention device for core-pulling mechanism of injection mold |
| CN206690482U (en) * | 2017-03-31 | 2017-12-01 | 青岛华涛汽车模具有限公司 | A kind of front mold slide rollback system of anti-injection mold |
| CN209832481U (en) * | 2019-02-22 | 2019-12-24 | 南方佛吉亚汽车部件有限公司 | Slide block anti-retreating structure for injection mold |
-
2019
- 2019-02-22 CN CN201910131797.1A patent/CN109648804B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990025597U (en) * | 1997-12-17 | 1999-07-05 | 김영환 | Shock Absorber of Slide Block for Injection Mold |
| JP2003266490A (en) * | 2002-03-19 | 2003-09-24 | Denso Corp | Mold for injection molding |
| CN202264362U (en) * | 2011-10-18 | 2012-06-06 | 青岛海尔模具有限公司 | Oil cylinder core-pulling mechanism for preventing injection molding retraction and mold |
| CN105415619A (en) * | 2014-09-22 | 2016-03-23 | 宁波东昊汽车部件有限公司 | Oil cylinder receding prevention device for core-pulling mechanism of injection mold |
| CN206690482U (en) * | 2017-03-31 | 2017-12-01 | 青岛华涛汽车模具有限公司 | A kind of front mold slide rollback system of anti-injection mold |
| CN209832481U (en) * | 2019-02-22 | 2019-12-24 | 南方佛吉亚汽车部件有限公司 | Slide block anti-retreating structure for injection mold |
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|---|---|
| CN109648804A (en) | 2019-04-19 |
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