CN111070576A - Bidirectional core-pulling mechanism based on combination of sliding block and bent pin - Google Patents
Bidirectional core-pulling mechanism based on combination of sliding block and bent pin Download PDFInfo
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- CN111070576A CN111070576A CN201911380977.XA CN201911380977A CN111070576A CN 111070576 A CN111070576 A CN 111070576A CN 201911380977 A CN201911380977 A CN 201911380977A CN 111070576 A CN111070576 A CN 111070576A
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- core pulling
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 11
- 238000005452 bending Methods 0.000 claims description 24
- 238000000465 moulding Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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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
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- 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
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention provides a bidirectional core pulling mechanism based on a combination of a sliding block and a bent pin, which comprises a movable mould plate, a fixed mould plate, a first core pulling assembly and a second core pulling assembly, wherein the first core pulling assembly comprises a first bent pin and a first sliding block, the second core pulling assembly comprises a second bent pin and a second sliding block, the first sliding block can move along a first core pulling direction along with the movement of the first bent pin, and the second sliding block can move along a second core pulling direction along with the movement of the second bent pin. According to the inlaying structure of the first core pulling assembly and the second core pulling assembly, core pulling molding in two different directions of inclined hole screw column lateral core pulling and base buckle lateral core pulling of the air conditioner base can be achieved successively by means of matching of the bent pin and the sliding block, the structure is simple on the whole, disassembly and replacement are convenient, mold cost is reduced, and processing period is shortened.
Description
Technical Field
The invention relates to the technical field of mold core pulling, in particular to a bidirectional core pulling mechanism based on a combination of a sliding block and a bent pin.
Background
In order to meet the requirements of different products on functions and structures and the assembly requirements of different workpieces, the structures of plastic products are increasingly complex, and more structures such as holes, grooves, bulges and the like are designed, and the structures usually need to be provided with a core pulling mechanism on a mold.
Take air conditioner to hang quick-witted base as an example, the mechanism of slider and the combination of oblique guide pillar is mainly adopted to the side direction among the prior art mechanism of loosing core, nevertheless because one set of oblique guide pillar side direction is loosed core and can only realize the side direction of certain orientation and loose core, if will realize two-way loosing core, then need set up the side direction mechanism of loosing core that two sets of sliders combine the oblique guide pillar that looses core, make mould development cost high, influence the manufacturing and the assembly of mould, on the other hand, the shaping position of air conditioner base buckle is darker, traditional slider and the mechanism that the oblique guide pillar combines are difficult to get into this position, the buckle is loosed.
Disclosure of Invention
The invention solves the problems of difficult core pulling, high processing cost and long manufacturing period caused by a plurality of core pulling directions of the core pulling mechanism in the prior art.
In order to solve the problems, the invention provides a bidirectional core pulling mechanism based on a combination of a sliding block and a bent pin, which comprises a movable mould plate, a fixed mould plate, a first core pulling assembly and a second core pulling assembly, wherein the first core pulling assembly comprises a first bent pin and a first sliding block, the second core pulling assembly comprises a second bent pin and a second sliding block, the first sliding block can move along a first core pulling direction along with the movement of the first bent pin, and the second sliding block can move along a second core pulling direction along with the movement of the second bent pin.
After adopting the structure, compared with the prior art, the invention has the following advantages: according to the inlaying structure of the first core pulling assembly and the second core pulling assembly, core pulling molding in two different directions of inclined hole screw column lateral core pulling and base buckle lateral core pulling of the air conditioner base can be achieved successively by means of matching of the bent pin and the sliding block, the structure is simple on the whole, disassembly and replacement are convenient, mold cost is reduced, and processing period is shortened.
Furthermore, the first core pulling assembly further comprises a sliding block base used for supporting the first sliding block to slide, and the sliding block base is fixed on the movable mould plate; the sliding block can move along the sliding block base by adopting the arrangement.
Furthermore, the extending direction of the connecting surface of the first slider and the slider base is the first core pulling direction; the first sliding block can move along the first core pulling direction by adopting the arrangement.
Furthermore, a first guide groove is formed in the first sliding block, and a second guide groove is formed in the sliding block base; the guide groove is provided so that the first bending pin can move therein.
Furthermore, the first bent pin comprises a straight column and an inclined column bent towards the first core pulling direction, one end of the straight column is fixed on the fixed die plate, the other end of the straight column is inserted into the first guide groove, and the inclined column is inserted into the second guide groove; by adopting the arrangement, the movement of the first bent pin can drive the movement of the first sliding block.
Further, the right side wall of the first guide groove is provided with a guide section parallel to the extending direction of the inclined column; the arrangement makes the contact surface seamless when the first bent pin drives the first sliding block to move, the movement efficiency is high, and the friction is small.
Further, the second core pulling assembly further comprises a slider guide pillar connected with the second slider and extending towards the second bent pin, and the extending direction of the slider guide pillar is a second core pulling direction; the core-pulling forming of the structure in the deep cavity can be realized by adopting the above arrangement.
Furthermore, a groove is formed in one end, close to the second bent pin, of the slide block guide column, one end of the second bent pin is fixed on the fixed die plate, and the other end of the second bent pin is inserted into the groove; the locking effect of the second bent pin on the slide block guide post in the die closing state can be realized by adopting the arrangement.
Furthermore, a guide pillar base is arranged below the groove, a first guide block is arranged above the groove, and the guide pillar base and the first guide block are fixed relative to the movable die plate when the movable die plate moves; the guide pillar base and the first guide block are arranged to limit the displacement of the second bent pin in the vertical direction.
Furthermore, a second guide block is arranged on the slide block guide column, the second guide block is fixed on the movable template, and the second guide block is positioned on the left side of the groove; and the second guide block is arranged for realizing the guide function of the slide block guide column in the second core pulling direction.
Furthermore, a spring groove with an opening facing the groove is formed in the second guide block, a spring is arranged in the spring groove, a spring limiting block is abutted to the right side of the spring, and the spring limiting block is fixed on the slider guide column; the spring is arranged to provide driving force for the slider guide post to move.
Further, when the second core pulling assembly is in a mold closing state, the spring is in a compression state; by adopting the arrangement, when the movable die plate moves, the spring plays a role of pushing the spring limiting block so as to push the slide block guide pillar to move.
Further, a guide pillar limiting plate is arranged at the right end of the guide pillar base; the guide post limit plate can limit the movement distance of the slide block guide post.
Drawings
FIG. 1 is a schematic structural diagram of an air conditioner chassis according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the two-way core-pulling mechanism in a closed state according to an embodiment of the present invention;
FIG. 3 is a sectional view of the two-way core-pulling mechanism in an open mold state according to the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a bidirectional core-pulling mechanism according to an embodiment of the present invention;
FIG. 5 is an exploded schematic view of a second core pulling assembly according to an embodiment of the present invention;
110-a first bending pin; 111-a first bent pin screw; 120-a first slider; 121-a first guide groove; 122-a guide section; 130-a slider base; 131-a second guide groove; 140-a wear-resistant block; 150-a first slider stop; 210-a second bending pin; 211-a first bending pin screw; 220-a second slider; 221-second slider screw; 230-slider guide post; 231-a groove; 240-guide post base; 250-a first guide block; 260-a second guide block; 261-a spring; 270-a spring stop; 280-guide pillar limit plates; 290-a third guide block; 300-moving the template; 400-fixing a template; 500-a base; 510-base snap; 520-hole position of the middle frame fixing screw.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The embodiment of the invention discloses a bidirectional core-pulling mechanism, which is used for demolding a base 500 of an air conditioner hanging machine, and as shown in fig. 1, the base 500 comprises a middle frame fixing screw hole position 520 and a base buckle 510, the demolding directions of the two structures are different, and the forming position of the base buckle 510 is deeper.
As shown in fig. 2 to 3, the bidirectional core pulling mechanism disclosed in the embodiment of the present invention includes a movable platen 300, a fixed platen 400, a first core pulling assembly and a second core pulling assembly, wherein the movable platen 300 is located below the fixed platen 400, and the first core pulling assembly and the second core pulling assembly are located between the movable platen 300 and the fixed platen 400.
Specifically, the first core pulling assembly comprises a first bent pin 110 and a first slide block 120, the second core pulling assembly 200 comprises a second bent pin 210 and a second slide block 220, one end of the first slide block 110 is connected with a middle frame fixing screw hole position 520 in a matched die state, and one end of the second slide block is connected with a base buckle 510; the first slider 120 may move in a first core back direction along with the movement of the first bending pin 110, and the second slider 220 may move in a second core back direction along with the movement of the second bending pin 210.
Preferably, the first core back assembly further includes a slider base 130 for supporting the first slider 120, the slider base 130 is fixed to the movable platen 300 by a fastener, and the slider 120 is slidable on the slider base 130.
Preferably, an extending direction of a connection surface between the first slider 120 and the slider base 130 is the first core pulling direction, so that a sliding direction of the first slider 120 is the first core pulling direction.
Preferably, a first guide groove 121 is formed in the first slider 120, a second guide groove 131 is formed in the slider base 130, and the first guide groove 121 and the second guide groove 122 are used for accommodating the first bending pin 110 and enabling the movement of the first bending pin 110 to drive the first slider 120 to move.
Specifically, as shown in the drawings, the first bending pin 110 includes a straight column and an inclined column forming an included angle with the straight column, the inclined column is bent towards the first core pulling direction, and the straight column is a part of the first bending pin 110 extending along the Z-direction; one end of the straight column is fixed to the fixed die plate 400 by a first bent pin screw 111, the other end of the straight column 111 is inserted into the first guide groove 121, and the inclined column is completely inserted into the second guide groove 131.
Preferably, the right side wall of the first guide groove 121 has a guide section 122 parallel to the extending direction of the oblique column 112, and the right side wall of the first guide groove 121 refers to a side wall of the first guide groove 121 that is close to the right along the first core pulling direction.
As shown in fig. 4, a first slider stopper 150 is fixed to the slider base 130, and the first slider stopper 150 is configured to restrict the movement of the first slider 120 in the front-rear direction of the slider base 130. Note that the front-rear direction referred to herein is a direction perpendicular to both the left-right direction (left-right direction along the second core back direction) and the up-down direction (Z-and Z +). The outer side of the first sliding block 120 is provided with a wear-resistant block 140 for reducing friction between the fixed die plate 400 and the first sliding block 120.
Specifically, the mold opening motion process of the first core pulling assembly is as follows:
the movable mold plate 300 moves in the Z + direction, the fixed mold plate 400 moves in the Z-direction relative to the movable mold plate 300, at this time, the fixed mold plate 400 drives the first bent pin 110 fixed thereon to move in the Z-direction relative to the slider base 130 and the first slider 120, the first bent pin 110 is slowly pulled out of the second guide groove 131 until the batter post of the first bent pin 110 is attached to the guide section 122 in the first guide groove 121, at this time, the first bent pin 110 continues to move in the Z-direction to drive the first slider 120 to move in the first core-pulling direction along the slider base 130, and then core-pulling molding of the hole position 520 of the fixed screw of the middle frame is completed.
With further reference to fig. 2-5, the second core back assembly further includes a slider guide post 230 connected to the second slider 220 and extending toward the second bending pin 210, wherein the slider guide post 230 is connected to the second slider 220 by a second slider screw 221; the extension direction of the slider guide post 230 is a second core pulling direction, and the arrangement of the slider guide post 230 can realize core pulling forming of a structure in the deep part of the inner cavity of the core pulling mechanism.
Preferably, a groove 231 is formed at one end of the slider guide post 230 close to the second bending pin 210, one end of the second bending pin 210 is fixed on the fixed die plate 400 through a second slider screw 221, and the other end of the second bending pin 210 is inserted into the groove 231, so that the locking effect of the second bending pin 210 on the slider guide post 230 in a die assembly state can be realized by adopting the above arrangement.
Preferably, a guide post base 240 is disposed below the groove 231 of the slider guide post 230, and a first guide block 250 is disposed above the groove 231 of the slider guide post 230, wherein the guide post base 240 is fixed on the movable die plate 300 and is used for limiting the displacement of the second bending pin 210 in the vertical direction; the first guide block 250 is fixed on the slider base 130 and used for realizing the guide function of the second bending pin 210 in the vertical direction; the slider base 130 is fixed to the movable platen 300, and thus the guide post base 240 and the first guide block 250 are fixed with respect to the movable platen 300 while the movable platen moves.
Preferably, a second guide block 260 is further disposed on the slider guide post 230, the second guide block 260 is fixed to the movable mold plate 300, and the second guide block 260 can achieve a guiding effect of the slider guide post 230 in the second core pulling direction.
Preferably, the second guide block 260 is located at the left side of the groove 231, a spring groove with an opening facing the groove 231 is formed in the second guide block 260, a spring 261 is formed in the spring groove, a spring limit block 270 is abutted against the right side of the spring 261, and the spring limit block 270 is fixed on the slider guide post 230. The spring 261 is arranged to provide driving force for the slider guide post 230 to move, and the spring limiting block is prevented from directly colliding with the second guide block, so that the protection effect is achieved.
Preferably, when the second core pulling assembly is in a mold closing state, the spring 261 is in a compression state, so that when the movable mold plate 300 moves, the spring 261 pushes the spring stopper 270 to push the slider guide post 230 to move.
Preferably, a guide post limit plate 280 is disposed at the right end of the guide post base 240, and is used for limiting the moving distance of the slider guide post 230 in the second core-pulling direction.
In addition, the slider guide post 230 is provided with a third guide block 290 near the second slider 220, because the slider guide post 230 is longer, and the third guide block 290 is provided to cooperate with the second guide block 260 to achieve the guiding function of the slider guide post 230 in the second core pulling direction.
Specifically, the mold opening motion process of the second core pulling assembly is as follows:
the movable mold plate 300 moves in the Z + direction, the fixed mold plate 400 moves in the Z-direction relative to the movable mold plate 300, at this time, the fixed mold plate 400 drives the second bending pin 120 fixed thereon to move in the Z-direction relative to the slider guide pillar 230, the bottom end of the second bending pin 120 is slowly separated from the guide pillar base 240 and the groove 231 of the slider guide pillar 230, when the bottom end of the second bending pin 120 is higher than the upper surface of the slider guide pillar 230, the spring 261 in a pressed state pushes the spring stopper 270 to move in the second core pulling direction, that is, pushes the slider guide pillar 230 to move in the second core pulling direction, and when the slider guide pillar 230 moves to the guide pillar stopper 280, the movement is stopped, so that the core pulling molding of the base buckle 510 is completed.
In the invention, the inlaying structure of the first core-pulling assembly and the second core-pulling assembly is adopted, and the cooperation of the bent pin and the sliding block is utilized, so that core-pulling molding in two different directions of inclined hole screw column lateral core-pulling and base buckle lateral core-pulling of the air conditioner base can be realized successively, the structure is simple on the whole, the disassembly and the replacement are convenient, the mold cost is reduced, and the processing period is shortened.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. The utility model provides a two-way mechanism of loosing core based on slider and angle pin combination, its characterized in that, looses core the subassembly including movable mould board (300), fixed mould board (400), first subassembly and the second of loosing core, first subassembly of loosing core includes first angle pin (110) and first slider (120), second subassembly (200) of loosing core includes second angle pin (210) and second slider (220), first slider (120) can be along with the motion of first angle pin (110) is followed first direction of loosing core and is removed, second slider (220) can be along with the motion of second angle pin (210) is followed the second and is loosed core the direction and is removed.
2. The bidirectional core pulling mechanism according to claim 1, wherein the first core pulling assembly further comprises a slider base (130) for supporting the first slider (120) to slide, the slider base (130) being fixed to the movable platen (300).
3. The bidirectional core pulling mechanism according to claim 2, wherein the extending direction of the connecting surface of the first slider (120) and the slider base (130) is the first core pulling direction.
4. A bi-directional core pulling mechanism according to claim 3, wherein a first guide groove (121) is provided in the first slider (120) and a second guide groove (131) is provided in the slider base (130).
5. The mechanism of claim 4, wherein the first bending pin (110) comprises a straight column and an inclined column bending towards the first core pulling direction, one end of the straight column is fixed on the fixed mold plate (400), the other end of the straight column is inserted into the first guide groove (121), and the inclined column is inserted into the second guide groove (131).
6. The bidirectional core pulling mechanism according to claim 5, wherein a right side wall of the first guide groove (121) has a guide section (122) parallel to the extending direction of the oblique post.
7. The bi-directional core pulling mechanism according to any one of claims 1 to 6, wherein the second core pulling assembly further comprises a slider guide post (230) connected to the second slider (220) and extending toward the second bent pin (210), wherein the extension direction of the slider guide post (230) is a second core pulling direction.
8. The mechanism of claim 7, wherein the slider guide post (230) has a groove (231) at one end near the second bending pin, and the second bending pin (210) has one end fixed to the stationary platen (400) and the other end inserted into the groove (231).
9. The mechanism of claim 8, wherein a guide post base (240) is arranged below the groove (231), a first guide block (250) is arranged above the groove (231), and the guide post base (240) and the first guide block (250) are fixed relative to the movable die plate (300) when the movable die plate moves.
10. The bi-directional core pulling mechanism according to claim 9, wherein a second guide block (260) is provided on the slider guide post (230), the second guide block (260) is fixed to the movable platen, and the second guide block (260) is located at the left side of the groove (231).
11. The mechanism of claim 10, wherein the second guide block (260) is provided with a spring groove opening toward the groove (231), a spring (261) is provided in the spring groove, a spring stopper (270) abuts against the right side of the spring (261), and the spring stopper (270) is fixed on the slider guide post (230).
12. The bi-directional core pulling mechanism according to claim 11, wherein the spring (261) is in a compressed state when the second core pulling assembly is in a clamped state.
13. The bi-directional core pulling mechanism according to claim 9, wherein a guide post stopper plate (280) is provided at a right end of the guide post base (240).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380977.XA CN111070576A (en) | 2019-12-27 | 2019-12-27 | Bidirectional core-pulling mechanism based on combination of sliding block and bent pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380977.XA CN111070576A (en) | 2019-12-27 | 2019-12-27 | Bidirectional core-pulling mechanism based on combination of sliding block and bent pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111070576A true CN111070576A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911380977.XA Pending CN111070576A (en) | 2019-12-27 | 2019-12-27 | Bidirectional core-pulling mechanism based on combination of sliding block and bent pin |
Country Status (1)
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| CN (1) | CN111070576A (en) |
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- 2019-12-27 CN CN201911380977.XA patent/CN111070576A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20070113663A (en) * | 2006-05-25 | 2007-11-29 | 한국단자공업 주식회사 | Slide driving structure of injection molding die |
| KR20100002922A (en) * | 2008-06-30 | 2010-01-07 | 한국단자공업 주식회사 | Mold assembly |
| CN102225611A (en) * | 2011-04-01 | 2011-10-26 | 慈溪天龙电子有限公司 | Mechanism capable of pulling core in two directions in once die opening |
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