CN108568948B - Double-layer rotary injection mold structure for single-color forming machine - Google Patents
Double-layer rotary injection mold structure for single-color forming machine Download PDFInfo
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- CN108568948B CN108568948B CN201710747721.2A CN201710747721A CN108568948B CN 108568948 B CN108568948 B CN 108568948B CN 201710747721 A CN201710747721 A CN 201710747721A CN 108568948 B CN108568948 B CN 108568948B
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- turntable
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- gear
- product
- rotary table
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- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 238000001746 injection moulding Methods 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims description 13
- 239000003292 glue Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated 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
- B29C45/03—Injection moulding apparatus
- B29C45/04—Injection moulding apparatus using movable moulds or mould halves
- B29C45/06—Injection moulding apparatus using movable moulds or mould halves mounted on a turntable, i.e. on a rotating support having a rotating axis parallel to the mould opening, closing or clamping direction
-
- 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
Abstract
The invention belongs to the technical field of injection molds of automobile lamps, and provides a double-layer rotary injection mold structure for a monochromatic forming machine, which aims to solve the technical problems that when a monochromatic forming machine is used for injecting thick-wall products, injection molding time is long and defects are easy to occur; the limiting device comprises a limiting block arranged on the movable mould base plate and a limiting stop arranged on the turntable base plate, the turntable ejecting device comprises a roller assembly arranged below the turntable backing plate. The invention divides the thick-wall part into two parts for layered injection molding, greatly shortens the production period of the product and simplifies the production process.
Description
Technical Field
The invention belongs to the technical field of automobile lamp injection molds, and particularly relates to a double-layer rotary injection mold structure for a single-color forming machine.
Background
With the development of the mold technology, the structure is more and more complex, and the realized functions are more and more abundant. Over the years, more reliable and viable mold solutions have been pursued to accomplish the intended design goals. At present, for injection molding of thick-wall products, stable design technology and injection molding technology are not obtained in the research stage. At present, the problem that the mass production of thick-wall products cannot be realized is solved, a common single-color injection molding machine only has a good injection molding effect on products with moderate wall thickness, the time required for injection molding of the thick-wall products can be greatly increased, and the defects of shrinkage, underinjection and the like caused by the thick-wall products are difficult to control in the process.
Disclosure of Invention
The invention provides a double-layer rotary injection mold structure for a single-color forming machine, which aims to solve the technical problems that the injection time is long and defects are easy to occur when a thick-wall product is injected by the single-color forming machine.
The technical scheme adopted by the invention is as follows:
the double-layer rotary injection mold structure for the single-color forming machine comprises a glue feeding system, a rotating mechanism, a limiting device, an ejection device and a turntable ejection device, wherein the glue feeding system comprises a hot runner, an electromagnetic valve, a first product mold cavity and a second product mold cavity, the first product mold cavity and the second product mold cavity are respectively communicated with the hot runner, and the electromagnetic valve is arranged on the hot runner and is used for controlling the injection molding sequence of materials; the rotary mechanism comprises a turntable, a turntable base plate and a turntable rotary driving device for driving the turntable and the turntable base plate to rotate, wherein the turntable base plate is arranged on the movable mould base plate, the turntable is arranged on the turntable base plate, a first product mould and a second product mould are symmetrically arranged on the left side and the right side of the upper part of the turntable, the first product mould and the second product mould are correspondingly arranged with a first product mould cavity and a second product mould cavity in the glue feeding system, and ejection devices are respectively arranged below the first product mould and the second product mould; the limiting device comprises two limiting blocks arranged on the movable die base plate and a limiting stop block arranged at the outer edge of the turntable base plate, wherein the limiting stop block is positioned between the two limiting blocks, and the maximum angle between the limiting stop block and the limiting block is 180 degrees; the turntable popping device comprises a roller assembly arranged below the turntable backing plate, and a spring in the roller assembly is always in a compressed state.
The rotary table rotary driving device comprises a rotary shaft I, a rotary shaft II, a bearing I, a bearing II, a gear I, a gear II, a gear III and a stepping motor, wherein the rotary shaft I is vertically arranged in the middle of the rotary table and a rotary table backing plate, the lower part of the rotary shaft I penetrates out of the rotary table backing plate, the rotary shaft I is in key connection with the rotary table and the rotary table backing plate, the gear I and the bearing I are sleeved on the lower part of the rotary shaft I, the bearing I is arranged on the lower part of the gear I, the gear II and the bearing II are sleeved on the rotary shaft II, the gear II is meshed with the gear I, the gear III is sleeved on an output shaft of the stepping motor, and the gear III is meshed with the gear II.
The limiting device further comprises an oil cylinder arranged on the movable die base plate, a connecting rod connected with a push rod of the oil cylinder and a groove arranged on the turntable base plate along the radial direction of the connecting rod, the width of the groove is matched with the rod diameter of the connecting rod, when the angle between the limiting stop block and the limiting block is 0 degree, the connecting rod is arranged opposite to the groove on the turntable base plate, and the connecting rod can be inserted into the groove on the turntable base plate under the pushing of the oil cylinder.
The turntable ejecting device further comprises a resin shutter arranged on the upper portion of the turntable, and the resin shutter is fixed on the fixed die frame through screws when the die is assembled.
The invention has the beneficial effects that:
(1) According to the invention, injection molding is performed through the single-color injection molding machine, so that the manufacturing cost of the double-color mold is reduced, the structural design is flexible and reliable, the mold structural design of similar products can be met, and the application range of the mold is enlarged.
(2) The invention splits the thick-wall part into two parts for layered injection molding, thereby greatly shortening the production period of the product and simplifying the production process.
(3) According to the invention, the rotating shafts are arranged in the middle of the turntable and the turntable backing plate, the rotation of the mold is realized in a mode of driving the gears by the stepping motor, and the auxiliary positioning is performed by the related parts, so that the stability of injection molding products is ensured.
(4) The invention can make the turntable always in an ejecting state by arranging the auxiliary ejecting mechanism such as the resin shutter, the roller component and the like, thereby facilitating the rotation of the turntable and ensuring the stability and the reliability of the structure.
Drawings
FIG. 1 is a schematic diagram of a mold rotating structure according to the present invention;
FIG. 2 is a schematic view of the internal structure of the mold rotating structure of the present invention;
FIG. 3 is a schematic diagram of a double-layer splitting structure of a product;
FIG. 4 is a schematic diagram of a turntable rotation driving device;
FIG. 5 is a schematic view of a rotational stop device;
fig. 6 is a schematic diagram of a mold carousel ejector.
In the figure: 1-a second layer product mold; 2-rotating shaft I; 3-positioning pieces; 4-a first layer product mold; 5-a turntable; 6-a movable die backing plate; 7-backing plate; 8-a lower base plate; 9-an oil cylinder; 10-connecting rods; 11-screws; 12-resin shutter; 13-an ejector plate; 14-a turntable backing plate; 15-limit stops; 16-a stepper motor; 17-gear three; 18-gear two; 19-a second bearing; 20-a second rotating shaft; 21-bearing one; 22-gear one; 23-a roller assembly; 24-limiting blocks; 25-a hot runner; 26-an electromagnetic valve; 27-a first product mold cavity; 28-second product mold cavity.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, 2 and 4, the double-layer rotary injection mold structure for a single-color forming machine comprises a glue feeding system, a rotating mechanism, a limiting device, an ejection device and a turntable ejection device, wherein the rotating mechanism comprises a turntable 5, a turntable base plate 14 and a turntable rotary driving device for driving the turntable 5 and the turntable base plate 14 to rotate, the turntable base plate 14 is arranged on a movable mold base plate 6, the turntable 5 is arranged on the turntable base plate 14, the turntable rotary driving device comprises a first rotating shaft 2, a second rotating shaft 20, a first bearing 21, a second bearing 19, a first gear 22, a second gear 18, a third gear 17 and a stepping motor 16, the first rotating shaft 2 is vertically arranged in the middle of the turntable and the turntable base plate 14, the lower part of the first rotating shaft 2 penetrates out of the turntable base plate 14, the first rotating shaft 2 is in key connection with the turntable 5 and the turntable base plate 14, the lower part of the first rotating shaft 2 is sleeved with the first gear 22 and the first bearing 21, the first bearing 21 is arranged at the lower part of the first gear 22, the second gear 18 and the second bearing 19 are sleeved on the second rotating shaft 20, the second gear 18 is meshed with the first gear 22, the third gear 17 is meshed with the third gear 17, and the third gear 17 is meshed with the third gear 17. The invention drives the gear to rotate through the stepping motor 16, and the gear drives the bearing to move, so that the rotary motion of the turntable 5 and the turntable backing plate 14 is realized, and the specific rotary motion is as follows: after the first injection molding of the mold on the injection molding machine is completed, the stepping motor 16 receives a signal to drive the gear III 17 to start rotating, and torque is transmitted to the rotating shaft I2 through the gear II 18 and the gear I22 to drive the turntable 5 and the turntable backing plate 14 to rotate for a certain angle, so that the action required by the design is completed.
As shown in fig. 5, the limiting device comprises two limiting blocks 24 arranged on the movable mould base plate 6 and a limiting block 15 arranged at the outer edge of the turntable base plate 14, wherein the limiting block 15 is positioned between the two limiting blocks 24, and the maximum angle between the limiting block 15 and the limiting block 24 is 180 degrees; the limiting device is used for the opposite the position of the rotation mechanism is limited, the accurate positioning of the turntable is realized. When the mold completes the first injection molding on the injection molding machine, the turntable 5 and the turntable base plate 14 are driven by the turntable rotation driving device, when the mold rotates to 180 degrees, the limit stop 15 on the turntable base plate 14 is contacted with the limit block 24 on the movable mold base plate 6, the turntable rotation driving device stops moving, thereby providing necessary conditions for the second injection molding, and in order to accurately lock the turntable, the rotating mechanism is stopped in the state, the movable die cushion plate 6 is also provided with an oil cylinder 9 and a connecting rod 10 connected with a push rod of the oil cylinder 9, a groove matched with the rod diameter of the connecting rod 10 is arranged on the turntable cushion plate 14 along the radial direction of the turntable cushion plate 14, and when a limit stop 15 on the turntable cushion plate 14 is contacted with a limit block 24 on the movable die cushion plate 6, namely, the angle between the limit stop 15 and the limit block 24 is 0 degree, the connecting rod 10 is arranged opposite to the groove on the turntable cushion plate 14, and the connecting rod 10 is inserted into the groove on the turntable cushion plate 14 under the pushing of the oil cylinder 9.
As shown in fig. 6, the turntable ejection device includes a roller assembly 23 disposed under the turntable pad 14 and a resin shutter 12 disposed on the upper portion of the turntable 5, where the spring in the roller assembly 23 is always in a compressed state, and when the mold is closed, the resin shutter 12 is fixed on the fixed mold frame by the screw 11, and when the mold is opened, the resin shutter 12 is fixed on the fixed mold, so that the turntable 5 is pulled to separate the rotating mechanism from the rest of the movable mold, and meanwhile, since the spring in the roller assembly 23 is always in a compressed state, a pushing force is continuously applied to the mechanism formed by the turntable 5, the turntable pad 14 and the ejection device, so that the turntable device is always in an ejection state in an opened state, providing a necessary condition for smooth rotation of the turntable, and avoiding the normal operation of the rotating mechanism due to the contact between the turntable 5 and the turntable pad 14 and the movable mold pad 6.
As shown in fig. 3, the glue feeding system includes a hot runner 25, an electromagnetic valve 26, a first product mold cavity 27 and a second product mold cavity 28, the first product mold cavity 27 and the second product mold cavity 28 are respectively communicated with the hot runner 25, the electromagnetic valve 26 is disposed on the hot runner 25, as shown in fig. 1, a first layer of product mold 4 and a second layer of product mold 1 are symmetrically disposed on left and right sides of an upper portion of the turntable, the first layer of product mold 4 and the second layer of product mold 1 are correspondingly disposed with the first product mold cavity 27 and the second product mold cavity 28 in the glue feeding system, the thick-wall product is split into two parts during injection molding, similar to a two-color product, when the mold is injected, a material enters the mold cavity from the hot runner 2525, and the injection molding sequence of the material is controlled by the electromagnetic valve 26 on the hot runner 25, so that the mold is converted into two-time injection molding.
As shown in fig. 1, in order to facilitate ejection of the obtained molded product, ejection devices are respectively arranged below the first layer product mold 4 and the second layer product mold 1; the ejection device comprises an ejection plate 13, a thimble and a pulling rod, and the independent ejection device is designed in the turntable, so that after the product is secondarily molded, the ejection device of the die ejects the product, and the product is smoothly ejected.
According to the invention, the rotating mechanism is added on the mold of the single-color product, so that the mold can realize the injection molding action similar to that of a double-color mold, and the injection molding process of the thick-wall part is completed. The rotating shaft is designed on the movable mould, and is driven by a stepping motor by utilizing gear transmission, so that the movable mould is rotated. The product is designed with two pouring gates, the mutual injection molding is realized through a hot runner electromagnetic valve, after the injection molding is finished for the first time, the mold is opened, and then the mold is driven by a stepping motor to rotate for 180 degrees to be closed again, and the second injection molding is carried out. And ejecting the product out by an ejection device of the die after injection molding is finished. The structure realizes the secondary injection molding of the single-color injection molding machine, avoids designing a double-color mold, saves the cost, and solves the injection molding problem of single-color thick-wall products.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. A double-deck rotatory injection mold structure for monochromatic make-up machine, its characterized in that: the injection molding machine comprises a glue feeding system, a rotating mechanism, a limiting device, an ejection device and a turntable ejection device, wherein the glue feeding system comprises a hot runner (25), an electromagnetic valve (26), a first product mold cavity (27) and a second product mold cavity (28), the first product mold cavity (27) and the second product mold cavity (28) are respectively communicated with the hot runner (25), and the electromagnetic valve (26) is arranged on the hot runner (25) and is used for controlling the injection molding sequence of materials; the rotary mechanism comprises a rotary table (5), a rotary table base plate (14) and a rotary table rotary driving device for driving the rotary table (5) and the rotary table base plate (14) to rotate, wherein the rotary table base plate (14) is arranged on a movable die base plate (6), the rotary table (5) is arranged on the rotary table base plate (14), a first layer of product die (4) and a second layer of product die (1) are symmetrically arranged on the left side and the right side of the upper part of the rotary table (5), the first layer of product die (4) and the second layer of product die (1) are correspondingly arranged with a first product die cavity (27) and a second product die cavity (28) in a glue feeding system, and ejection devices are respectively arranged below the first layer of product die (4) and the second layer of product die (1); the limiting device comprises two limiting blocks (24) arranged on the movable mould base plate (6) and a limiting block (15) arranged on the outer edge of the turntable base plate (14), wherein the limiting block (15) is positioned between the two limiting blocks (24), and the maximum angle between the limiting block (15) and the limiting block (24) is 180 degrees; the limiting device further comprises an oil cylinder (9) arranged on the movable mould base plate (6), a connecting rod (10) connected with a push rod of the oil cylinder (9) and a groove arranged on the turntable base plate (14) along the radial direction of the oil cylinder, the width of the groove is matched with the rod diameter of the connecting rod (10), when the angle between the limiting stop block (15) and the limiting block (24) is 0 degree, the connecting rod (10) is arranged opposite to the groove on the turntable base plate (14), and the connecting rod (10) can be inserted into the groove on the turntable base plate (14) under the pushing of the oil cylinder (9); the turntable ejecting device comprises a roller assembly (23) arranged below a turntable backing plate (14), a spring in the roller assembly (23) is always in a compressed state, the turntable rotating driving device comprises a first rotating shaft (2), a second rotating shaft (20), a first bearing (21), a second bearing (19), a first gear (22), a second gear (18), a third gear (17) and a stepping motor (16), the first rotating shaft (2) is vertically arranged in the middle of the turntable and the turntable backing plate (14), the lower part of the first rotating shaft (2) penetrates out of the turntable backing plate (14), the first rotating shaft (2) is connected with the turntable and the turntable backing plate (14) in a key manner, the first gear (22) and the first bearing (21) are sleeved on the lower part of the first rotating shaft (2), the first bearing (21) is arranged on the lower part of the first gear (22), the second gear (18) and the second bearing (19) are sleeved on the second rotating shaft (20), the second gear (18) is meshed with the first gear (22), the third gear (17) is sleeved on an output shaft (16) of the stepping motor, and the third gear (17) is meshed with the second gear (18).
2. The double-layer rotary injection mold structure for a single-color molding machine according to claim 1, wherein: the turntable ejecting device further comprises a resin shutter (12) arranged on the upper portion of the turntable (5), and the resin shutter (12) is fixed on the fixed die frame through a screw (11) when the die is assembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747721.2A CN108568948B (en) | 2017-08-28 | 2017-08-28 | Double-layer rotary injection mold structure for single-color forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710747721.2A CN108568948B (en) | 2017-08-28 | 2017-08-28 | Double-layer rotary injection mold structure for single-color forming machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108568948A CN108568948A (en) | 2018-09-25 |
| CN108568948B true CN108568948B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710747721.2A Active CN108568948B (en) | 2017-08-28 | 2017-08-28 | Double-layer rotary injection mold structure for single-color forming machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109702957B (en) * | 2018-12-28 | 2023-12-26 | 海天塑机集团有限公司 | Double-colored quick-witted carousel holds in palm out device |
| CN110001017B (en) * | 2019-04-18 | 2023-11-17 | 巩诚电装（重庆）有限公司 | Limiting device for cooling water pipe of forming machine die |
| CN110253814A (en) * | 2019-07-17 | 2019-09-20 | 广州市裕航电气机械有限公司 | A kind of foam helmet forming rotation shifting formwork machine |
| CN112959615A (en) * | 2021-02-26 | 2021-06-15 | 广东亚泰科技有限公司 | Turntable mechanism and equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2015571A1 (en) * | 1990-04-26 | 1991-10-26 | Samco Scientific, Inc. | Reinsertable closure for sample tubes |
| JP2008155395A (en) * | 2006-12-21 | 2008-07-10 | Kasai Kogyo Co Ltd | Method and apparatus for molding laminated molding |
| CN104626470A (en) * | 2015-02-11 | 2015-05-20 | 宁波双林模具有限公司 | Two-color mold with inner rotating core |
| CN206154606U (en) * | 2016-08-23 | 2017-05-10 | 台州新立模塑科技股份有限公司 | Double -colored injection mold of automobile door handle rotation type |
| CN207841958U (en) * | 2017-08-28 | 2018-09-11 | 常州星宇车灯股份有限公司 | A kind of Double layer rotating injection mold structure for monochromatic molding machine |
-
2017
- 2017-08-28 CN CN201710747721.2A patent/CN108568948B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2015571A1 (en) * | 1990-04-26 | 1991-10-26 | Samco Scientific, Inc. | Reinsertable closure for sample tubes |
| JP2008155395A (en) * | 2006-12-21 | 2008-07-10 | Kasai Kogyo Co Ltd | Method and apparatus for molding laminated molding |
| CN104626470A (en) * | 2015-02-11 | 2015-05-20 | 宁波双林模具有限公司 | Two-color mold with inner rotating core |
| CN206154606U (en) * | 2016-08-23 | 2017-05-10 | 台州新立模塑科技股份有限公司 | Double -colored injection mold of automobile door handle rotation type |
| CN207841958U (en) * | 2017-08-28 | 2018-09-11 | 常州星宇车灯股份有限公司 | A kind of Double layer rotating injection mold structure for monochromatic molding machine |
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|---|---|
| CN108568948A (en) | 2018-09-25 |
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