CN213166647U - Anti-blocking thread core-pulling structure - Google Patents
Anti-blocking thread core-pulling structure Download PDFInfo
- Publication number
- CN213166647U CN213166647U CN202022004912.XU CN202022004912U CN213166647U CN 213166647 U CN213166647 U CN 213166647U CN 202022004912 U CN202022004912 U CN 202022004912U CN 213166647 U CN213166647 U CN 213166647U
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- chain wheel
- core
- tooth
- sleeve
- fixing plate
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- 230000000670 limiting effect Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 238000000465 moulding Methods 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 8
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses a dead screw thread of anti-sticking structure of loosing core, include: the core pulling mechanism comprises a top plate, a chain wheel fixing plate, a core pulling assembly and a driving mechanism, wherein the top plate is movably connected with the chain wheel fixing plate, and the core pulling assembly penetrates through the top plate and is installed in the chain wheel fixing plate; the core pulling assembly comprises a hinge tooth core and a chain wheel sleeve, and the chain wheel sleeve is rotatably installed in the chain wheel fixing plate and connected with the driving mechanism; the hinge tooth core is arranged in the chain wheel sleeve and can move up and down along the chain wheel sleeve; a limiting mechanism is arranged between the tooth reaming core and the chain wheel sleeve so that the chain wheel sleeve drives the tooth reaming core to rotate; the top plate and the separation driving device are installed between the chain wheel fixing plates, and the separation driving device is used for driving the chain wheel fixing plates to be separated from the top plate when the mold is opened. The utility model relates to a dead screw thread core pulling structure of anti-sticking can not lead to the mould card dead, has prolonged the life of mould, reduces the cost of moulding plastics.
Description
Technical Field
The utility model relates to a technical field of loosing core in the injection moulding product, in particular to anti-sticking dead screw thread structure of loosing core.
Background
With the development of the mold industry, the technology is continuously improved, the mold structure converts general manual operation into full mechanical motion, uncertain factors caused by manual operation are overcome, the stability of the size of a product, appearance requirements and long-time batch production are guaranteed, and for the product with the thread structure inside, a thread core is usually required to be added in a mold core.
At present, a common thread core-pulling structure adopts a gear on a rack transmission thread core on a hydraulic cylinder to realize rotary core-pulling or adopts a hydraulic motor to drive a push plate to realize rotary core-pulling. By adopting the rack transmission structure, when the number of the product tooth rings is large, the stroke of the hydraulic cylinder with the rack is too long, so that the mold is large, and the injection molding cost is increased. For most products with glue positioned on the rear mold, the products cannot be taken out by using a traditional hydraulic motor with a push plate, and a ejector sleeve is required to be ejected; and the unable accurate control of hydraulic motor number of turns can't accomplish just to the place of stroke just stop, causes the mould card to die, leads to the life of mould very low, makes the subsequent cost of maintenance of mould increase.
Disclosure of Invention
The utility model aims to solve the problem that an anti-sticking thread structure of loosing core is provided to overcome among the prior art injection mold occupation space big, the cost of moulding plastics is high, easy card defect such as dead when the drawing of patterns.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: an anti-seize thread core pulling structure comprises: the core pulling mechanism comprises a top plate, a chain wheel fixing plate, a core pulling assembly and a driving mechanism, wherein the top plate is movably connected with the chain wheel fixing plate, and the core pulling assembly penetrates through the top plate and is installed in the chain wheel fixing plate; the core pulling assembly comprises a hinge tooth core and a chain wheel sleeve, and the chain wheel sleeve is rotatably installed in the chain wheel fixing plate and connected with the driving mechanism; the hinge tooth core is arranged in the chain wheel sleeve and can move up and down along the chain wheel sleeve; a limiting mechanism is arranged between the tooth reaming core and the chain wheel sleeve so that the chain wheel sleeve drives the tooth reaming core to rotate; the top plate and the separation driving device are installed between the chain wheel fixing plates, and the separation driving device is used for driving the chain wheel fixing plates to be separated from the top plate when the mold is opened.
As a further improvement of the utility model, the tooth core that articulates includes tooth core body and tooth core seat, the tooth core seat is fixed tooth core body bottom, the tooth core seat outside is the hexagon shape.
As a further improvement of the utility model, a containing cavity is arranged in the chain wheel fixing plate, and the chain wheel sleeve is rotatably installed in the containing cavity through a bearing; the chain wheel sleeve is internally provided with a hexagon socket hole which is matched and connected with the tooth core seat, and the tooth core seat is arranged in the hexagon socket hole and can move up and down along the hexagon socket hole.
As a further improvement, the driving mechanism comprises a motor, a chain and a chain wheel, the chain wheel is sleeved outside the chain wheel, the motor drives the chain to drive the chain wheel to rotate.
As a further improvement, the sprocket cover outside is provided with first spacing groove, the sprocket inboard with first spacing groove relative position is provided with the second spacing groove, first spacing groove with the stopper is installed to the second spacing inslot.
As a further improvement of the utility model, install the copper sheathing on the roof, the copper sheathing is established the tooth core outside of hinge.
As a further improvement of the utility model, the separation driving device comprises a spacing screw and a spring, and the top of the spacing screw penetrates through the chain wheel fixing plate and is fixedly connected to the top plate; the tail part of the distance screw is provided with a limiting boss, the chain wheel fixing plate is provided with a stopping part, and the limiting boss is abutted against the stopping part after the distance screw moves upwards for a certain distance; the spring is sleeved on the distance screw, one end of the spring is abutted against the top plate, and the other end of the spring is abutted against the chain wheel fixing plate.
As a further improvement of the utility model, the chain wheel fixing plate is right opposite to the gasket is installed at the bottom of the hinge tooth core.
As a further improvement of the utility model, the sliding sleeve is equipped with the sleeve on the hinge tooth core, the sleeve is used for ejecting work piece.
The utility model has the advantages that: the utility model provides a dead screw thread structure of loosing core of anti-sticking, be provided with hinge tooth core and sprocket cover, hinge tooth core is installed in the sprocket cover, and can follow the sprocket cover and reciprocate, hinge tooth core is rotated by the synchronous drive of sprocket cover, when the mould is opened, the sprocket fixed plate passes through the spring and the distance screw is opened, simultaneously hinge tooth core and sprocket cover relative movement, the motor drives hinge tooth core and rotates, under the drive of work piece screw thread, hinge tooth core begins to move back, to withdrawing from the work piece completely after, can make a round always in situ, can not continue to walk down after and lead to the mould card to die, need not carry out accurate control to the motor and rotate the number of turns, the life of mould has been prolonged, injection mold occupation space is little, the cost of moulding plastics is reduced, degree of automation is high, the production efficiency is improved, the work piece is demolding easily, and the drawing of patterns is.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a cross-sectional view in another direction of the present invention;
FIG. 4 is a partial exploded view of the present invention;
fig. 5 is an exploded view of the core pulling assembly of the present invention.
The following description is made with reference to the accompanying drawings:
1-a top plate; 2-chain wheel fixing plate;
201-a housing chamber; 202-a stop;
3-a driving mechanism; 301-motor;
302-chain; 303-sprocket;
3031-second Limit groove; 4-a tooth reaming core;
401 — dental core body; 402-dental core print;
5-chain wheel sleeve; 501-inner hexagonal hole;
502-first limiting groove; 6-bearing;
7-a limiting block; 8-copper sheathing;
9-distance screw; 901-limit boss;
10-a spring; 11-a gasket;
12-a sleeve; 13-workpiece.
Detailed Description
The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.
Referring to fig. 1 to 5, the utility model provides a dead screw thread of anti-sticking structure of loosing core, include: roof 1, sprocket fixed plate 2, the subassembly of loosing core and actuating mechanism 3, roof 1 and sprocket fixed plate 2 swing joint, the subassembly of loosing core runs through roof 1 and installs in sprocket fixed plate 2.
Referring to fig. 2 and 5, the core pulling assembly comprises a hinge tooth core 4 and a chain wheel sleeve 5, wherein the chain wheel sleeve 5 is rotatably installed in the chain wheel fixing plate 2 and connected with the driving mechanism 3; the hinge core 4 is installed in the sprocket housing 5 and can move up and down along the sprocket housing 5. A limiting mechanism is arranged between the tooth hinging core 4 and the chain wheel sleeve 5 so that the chain wheel sleeve 5 drives the tooth hinging core 4 to rotate. The tooth reaming core 4 comprises a core body 401 and a core seat 402, the core seat 402 is fixed at the bottom of the core body 401, and the outer side of the core seat 402 is in a hexagonal shape. An accommodating cavity 201 is formed in the chain wheel fixing plate 2, and the upper end and the lower end of the chain wheel sleeve 5 are rotatably installed in the accommodating cavity 201 through bearings 6. The sprocket sleeve 5 is internally provided with a hexagon socket 501 which is matched and connected with the tooth core holder 402, and the tooth core holder 402 is arranged in the hexagon socket 501 and can move up and down along the hexagon socket 501. By adopting the structural design, the chain wheel sleeve 5 can drive the tooth hinging cores 4 to synchronously rotate, and the tooth hinging cores 4 can move downwards along the chain wheel sleeve 5 in the rotating process. The hexagonal core holder 402 and the hexagonal socket 501 of the sprocket sleeve 5 form the limiting mechanism, but the limiting mechanism is not limited to this structure, or the core holder 402 and the sprocket sleeve 5 are in spline fit, as long as the sprocket sleeve 5 can synchronously drive the hinge core 4 to rotate, and the hinge core 4 can move relative to the sprocket sleeve 5 in the rotating process.
Referring to fig. 3, a separation driving device is installed between the top plate 1 and the sprocket fixing plate 2, and the separation driving device is used for driving the sprocket fixing plate 2 to be separated from the top plate 1 when the mold is opened. The separation driving device comprises a distance screw 9 and a spring 10, a spring accommodating groove is formed in the chain wheel fixing plate 2, and the top of the distance screw 9 penetrates through the spring accommodating groove and is fixedly connected to the top plate 1. Spacing screw 9 afterbody is provided with spacing boss 901, is provided with backstop 202 on the sprocket fixed plate 2, and after spacing screw 9 upwards removed the certain distance, spacing boss 901 supported and leaned on backstop 202. The spring 10 is installed in the spring accommodating groove and is sleeved on the distance screw 9, one end of the spring 10 is abutted against the bottom surface of the top plate 1, the other end of the spring is abutted against the bottom of the spring accommodating groove, and the spring 10 always has opposite elasticity to the top plate 1 and the chain wheel fixing plate 2. When the mold is opened, the sprocket fixing plate 2 moves a distance relative to the top plate 1 under the elastic force of the spring 10, and the position is limited by the matching of the limiting boss 901 and the stopping portion 202.
Referring to fig. 4, the driving mechanism 3 includes a motor 301, a chain 302 and a sprocket 303, the sprocket 303 is sleeved outside the sprocket sleeve 5, the motor 301 is connected to the chain 302, and the chain 302 is meshed with the sprocket 303. Motor 301 drives chain 302 to rotate sprocket 303.
Referring to fig. 5, a first limiting groove 502 is formed in the outer side of the sprocket sleeve 5, a second limiting groove 3031 is formed in the inner side of the sprocket 303 and opposite to the first limiting groove 502, and a limiting block 7 is installed in the first limiting groove 502 and the second limiting groove 3031, so that when the sprocket sleeve 5 rotates, the hinge core 4 is driven to synchronously rotate through the limiting block 7, and the hinge core 4 is rotated to be separated from the threaded portion of the workpiece 13.
Referring to fig. 2, the top plate 1 is fixedly provided with a copper sleeve 8, the copper sleeve 8 is sleeved outside the hinge tooth core 4, and the copper sleeve 8 can lubricate and guide the hinge tooth core 4.
Wherein, the sprocket fixed plate 2 is just being installed gasket 11 to the tooth core 4 bottom of hinging, and gasket 11 can prevent to retreat when moulding plastics and produce deckle edge. The sleeve 12 is slidably sleeved on the tooth reaming core 4, and after the tooth reaming core 4 is completely separated from the workpiece 13, the sleeve 12 pushes out the workpiece 13.
The working principle of the embodiment is as follows: the mold is opened, the chain wheel fixing plate 2 is opened relative to the top plate 1 through the spring 10 and is opened for 15mm under the limiting action of the spacing screw 9, and at the moment, the hinge tooth core 4 moves for 15mm relative to the chain wheel sleeve 5; the motor 301 rotates, the driving chain 302 drives the chain wheel 303 to rotate, the chain wheel 303 synchronously drives the tooth hinging cores 4 to rotate through the chain wheel sleeve 5, the tooth hinging cores 4 move backwards while rotating, the total length of tooth parts of the workpiece 13 is 12mm, when the tooth hinging cores 4 completely move out of the tooth parts of the workpiece 13, the tooth hinging cores 4 still have 3mm stroke lengths, the tooth hinging cores 4 do not have the driving of the teeth of the workpiece 13, the tooth hinging cores can always rotate in situ, and the die cannot be clamped due to continuous downward movement; the motor 301 stops rotating and the sleeve 12 ejects the workpiece 13. When the die is closed, the die can directly press the hinge tooth core 4 back to be locked. The utility model provides a structure of loosing core of anti-sticking dead screw thread, takes out from work piece 13 back at hinge tooth core 4, can be beaten always by motor 301 drive and change, can not let the mould card die, has solved motor 301 and has needed the difficult problem of accurate control rotation number of turns, has prolonged the life of mould, and injection mold occupation space is little, reduces the cost of moulding plastics, and degree of automation is high, improves production efficiency.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (9)
1. The utility model provides an anti-sticking thread structure of loosing core which characterized in that includes: the core pulling mechanism comprises a top plate (1), a chain wheel fixing plate (2), a core pulling assembly and a driving mechanism (3), wherein the top plate (1) is movably connected with the chain wheel fixing plate (2), and the core pulling assembly penetrates through the top plate (1) and is installed in the chain wheel fixing plate (2); the core pulling assembly comprises a hinge tooth core (4) and a chain wheel sleeve (5), and the chain wheel sleeve (5) is rotatably installed in the chain wheel fixing plate (2) and connected with the driving mechanism (3); the hinge tooth core (4) is arranged in the chain wheel sleeve (5) and can move up and down along the chain wheel sleeve (5); a limiting mechanism is arranged between the tooth reaming core (4) and the chain wheel sleeve (5) so that the chain wheel sleeve (5) drives the tooth reaming core (4) to rotate; the top plate (1) and a separation driving device are installed between the chain wheel fixing plates (2), and the separation driving device is used for driving the chain wheel fixing plates (2) to be separated from the top plate (1) when the mold is opened.
2. The anti-seize thread core pulling structure according to claim 1, characterized in that: the tooth reaming core (4) comprises a tooth core body (401) and a tooth core seat (402), the tooth core seat (402) is fixed at the bottom of the tooth core body (401), and the outer side of the tooth core seat (402) is in a hexagonal shape.
3. The anti-seize thread core pulling structure according to claim 2, characterized in that: an accommodating cavity (201) is formed in the chain wheel fixing plate (2), and the chain wheel sleeve (5) is rotatably installed in the accommodating cavity (201) through a bearing (6); the chain wheel sleeve (5) is internally provided with a hexagon socket (501) which is matched and connected with the tooth core seat (402), and the tooth core seat (402) is arranged in the hexagon socket (501) and can move up and down along the hexagon socket (501).
4. The anti-seize thread core pulling structure according to claim 1, characterized in that: drive mechanism (3) include motor (301), chain (302) and sprocket (303), sprocket (303) cover is established the sprocket cover (5) outside, motor (301) drive chain (302) drive sprocket (303) rotate.
5. The anti-seize thread core pulling structure according to claim 4, characterized in that: the outer side of the chain wheel sleeve (5) is provided with a first limiting groove (502), the inner side of the chain wheel (303) is provided with a second limiting groove (3031) at a position opposite to the first limiting groove (502), and a limiting block (7) is arranged in the first limiting groove (502) and the second limiting groove (3031).
6. The anti-seize thread core pulling structure according to claim 1, characterized in that: install copper sheathing (8) on roof (1), copper sheathing (8) cover is established the hinge tooth core (4) outside.
7. The anti-seize thread core pulling structure according to claim 1, characterized in that: the separation driving device comprises a distance screw (9) and a spring (10), and the top of the distance screw (9) penetrates through the chain wheel fixing plate (2) and is fixedly connected to the top plate (1); a limiting boss (901) is arranged at the tail of the distance screw (9), a stopping part (202) is arranged on the chain wheel fixing plate (2), and after the distance screw (9) moves upwards for a certain distance, the limiting boss (901) abuts against the stopping part (202); the spring (10) is sleeved on the distance screw (9), one end of the spring (10) is abutted against the top plate (1), and the other end of the spring is abutted against the chain wheel fixing plate (2).
8. The anti-seize thread core pulling structure according to claim 1, characterized in that: the chain wheel fixing plate (2) is right opposite to the bottom of the hinge tooth core (4) and is provided with a gasket (11).
9. The anti-seize thread core pulling structure according to claim 1, characterized in that: the hinge tooth core (4) is sleeved with a sleeve (12) in a sliding mode, and the sleeve (12) is used for ejecting a workpiece (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022004912.XU CN213166647U (en) | 2020-09-15 | 2020-09-15 | Anti-blocking thread core-pulling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022004912.XU CN213166647U (en) | 2020-09-15 | 2020-09-15 | Anti-blocking thread core-pulling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213166647U true CN213166647U (en) | 2021-05-11 |
Family
ID=75773413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022004912.XU Expired - Fee Related CN213166647U (en) | 2020-09-15 | 2020-09-15 | Anti-blocking thread core-pulling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213166647U (en) |
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2020
- 2020-09-15 CN CN202022004912.XU patent/CN213166647U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211011 Address after: 215300 No. 1219, Hengsheng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: KUNSHAN GOLDBERRY ELECTRONICS Co.,Ltd. Address before: 215300 room 2, No. 1219, Hengsheng Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Patentee before: Kunshan Huimei Plastic Mould Industry Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |
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| CF01 | Termination of patent right due to non-payment of annual fee |