CN115320046B - Cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment - Google Patents

Cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment Download PDF

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Publication number
CN115320046B
CN115320046B CN202211086581.6A CN202211086581A CN115320046B CN 115320046 B CN115320046 B CN 115320046B CN 202211086581 A CN202211086581 A CN 202211086581A CN 115320046 B CN115320046 B CN 115320046B
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China
Prior art keywords
injection molding
assembly
pressing block
cooling
synchronous
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CN202211086581.6A
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Chinese (zh)
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CN115320046A (en
Inventor
唐卫刚
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Wuxi Lingpai Technology Co ltd
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Wuxi Lingpai Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/73Heating or cooling of the mould
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/02Deburring or deflashing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/1769Handling of moulded articles or runners, e.g. sorting, stacking, grinding of runners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The invention discloses a cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment, wherein the cooling system for special-shaped injection molding comprises a pressing block and a female die arranged on one side of the pressing block, and further comprises: the device comprises a water cooling assembly, an induction assembly and a synchronization assembly; one end of the female die extends out of the pressing block, the water cooling assembly is communicated between the pressing block and the female die, the synchronous assembly is slidably arranged on one side, close to the female die, of the pressing block, the induction assembly is arranged on one side, close to the synchronous assembly, of the female die, and the synchronous assembly is movably clamped with the induction assembly; the water cooling assembly accelerates the cooling rate by increasing the flow path within the master mold, and the sensing assembly controls the motion state of the synchronizing assembly through the master mold sidewall temperature.

Description

Cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment
Technical Field
The invention relates to the technical field of injection molding equipment, in particular to a cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment.
Background
The injection moulding machine is a special plastic moulding machine, and uses the thermoplastic property of plastics, after heating and melting, it is quickly flowed into mould cavity by means of high pressure, and after a period of pressure-retaining and cooling, the plastics products with various shapes can be formed. The working procedures are basically the same and can be roughly divided into seven working procedures: clamping, injecting glue, maintaining pressure, melting glue, cooling, opening the mould and thimble.
The existing injection molding equipment is complex to operate, burrs and the like are easy to occur at joints among molds after injection molding is finished, the products after injection molding are required to be folded secondarily, the folding is generally required to be finished after injection molding is finished and cooled, and a common cooling system after injection molding is longer in cooling time and slower in cooling efficiency.
Therefore, it is necessary to provide a cooling system for profile injection molding and a profile molding device for the same to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment so as to solve the technical problems.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a cooling system for dysmorphism is moulded plastics, including pressfitting piece with set up in the master model of pressfitting piece one side still includes: the device comprises a water cooling assembly, an induction assembly and a synchronization assembly; one end of the female die extends out of the pressing block, the water cooling assembly is communicated between the pressing block and the female die, the synchronous assembly is slidably arranged on one side, close to the female die, of the pressing block, the induction assembly is arranged on one side, close to the synchronous assembly, of the female die, and the synchronous assembly is movably clamped with the induction assembly; the water cooling assembly accelerates the cooling rate by increasing the flow path within the master mold, and the sensing assembly controls the motion state of the synchronizing assembly through the master mold sidewall temperature.
Further, the water cooling assembly includes: the device comprises a water inlet pipe, a water outlet pipe, a cooling cavity, a water inlet, a water outlet and a water cooling pipe; the top and the bottom of pressfitting piece are provided with respectively and run through the pressfitting piece the inlet tube with the outlet pipe, the inlet tube with the outlet pipe corresponds the setting, the inlet tube with the outlet pipe set up in the pressfitting piece is close to one side of master model, seted up in the master model the cooling chamber, the master model top corresponds the position of inlet tube has been seted up the water inlet, the inlet tube passes through the water inlet stretches into inside the cooling chamber, the master model bottom corresponds the position of outlet pipe has been seted up the delivery port, the outlet pipe passes through the delivery port with the cooling chamber intercommunication.
Further, the cooling cavity is internally provided with the water cooling pipe, the water cooling pipe is arranged into a W-shaped pipeline, the water cooling pipe is connected end to end, so that the whole water cooling pipe is cylindrical and is wound in the cooling cavity, and the top and the bottom of the water cooling pipe are respectively communicated with the water inlet pipe and the water outlet pipe.
Further, the synchronization component includes: a synchronizing key, a synchronizing groove and a tension spring; the utility model discloses a pressing block, including female die, synchronizing key, tension spring, lock nut, the lock nut is close to one side of female die has been seted up the synchronizing groove, be provided with in the synchronizing groove the synchronizing key, the synchronizing key with be provided with between the synchronizing key tension spring, tension spring keeps the synchronizing key has the trend of keeping away from the lock nut.
Further, the synchronization component includes: the positioning seat, the telescopic seat and the blocking groove; the female die is close to the side wall fixedly connected with of the synchronous key the positioning seat, the sliding of positioning seat is provided with the telescopic seat, the telescopic seat sets up to electric telescopic handle, the synchronous key is close to one side of positioning seat has been seted up the stop groove, stop groove activity block the telescopic seat.
Further, a temperature sensor is further arranged on the outer side wall of the female die, and the temperature sensor is electrically connected with the telescopic seat; in a natural state, the temperature sensor controls the expansion seat to extend, so that the blocking groove is clamped with the expansion seat; when the temperature sensor is at the limit value under the temperature, the temperature sensor controls the telescopic seat to shrink, and the synchronous key stretches under the action of the stretching spring.
The utility model provides a dysmorphism is moulded piece injection molding equipment, includes the base, the up end one side fixedly connected with melting of base moulds plastics the device main part, the up end of melting is moulded plastics the device main part and is equipped with throw the material device, side terminal surface one side drive of melting is moulded plastics the device main part is connected with and rotates the lead screw, the up end sliding connection of base has the pressfitting piece, the inside of pressfitting piece is equipped with the ball nut with rotating lead screw looks adaptation, one side fixedly connected with male mould that melting is moulded plastics the device main part and pressfitting piece laminating, the outer terminal surface cover of male mould is equipped with the receipts limit mechanism of handling the finished product edge, pressfitting piece and melting are moulded plastics device main part laminating one side and are equipped with the master model with male mould looks adaptation, still include be used for the cooling system that dysmorphism moulded plastics.
Further, the surface of the male die is provided with an injection nozzle and a negative pressure adsorption mechanism.
As a further scheme of the invention, one end of the main body of the fusion injection molding device, which is attached to the pressing block, is fixedly connected with the inserting rod, and the pressing block is provided with a positioning hole matched with the inserting rod.
As a further scheme of the invention, the edge folding mechanism comprises an inner swivel, a polishing air bag and an outer swivel, wherein the outer swivel is rotationally connected to the end face of the main body of the melt injection molding device, the inner swivel is rotationally sleeved in the outer swivel, and the polishing air bag is fixedly connected to the inner wall of the inner swivel.
Furthermore, the polishing air bag adopts an elastic structure, and polishing particles or polishing fibers are attached to the surface of the polishing air bag.
As a further scheme of the invention, a rotating cavity is formed in the main body of the melt injection molding device, the edge collecting mechanism is movably arranged in the rotating cavity, and a gear matched with the tooth slot is fixedly connected to the side end face of the rotating screw rod.
As a further scheme of the invention, an inclined plane groove is formed in the inner part of the inner rotating ring, one end of the synchronous key, which is away from the pressing block, penetrates through and extends to the inside of the main body of the melt injection molding device, and one side of the synchronous key is fixedly connected with an inclined plane part which is matched with the inclined plane groove.
As a further scheme of the invention, the two groups of rotating screw rods are respectively a first rotating screw rod and a second rotating screw rod, the first rotating screw rod and the second rotating screw rods are symmetrically distributed on two sides of the male die, the inner wall of the rotating cavity is provided with a spring, one end of the spring, which is away from the rotating cavity, is elastically connected with an outer rotating ring, the outer rotating ring is eccentrically arranged in the rotating cavity under the action of the spring, and the tooth slot is meshed with the second rotating screw rod.
As a further scheme of the polishing device, a sliding cavity is arranged between the inner rotating ring and the outer rotating ring, a positioning rod and a sliding rod are arranged in the sliding cavity, the positioning rod is fixedly connected with the inner rotating ring, the sliding rod is fixedly connected with the outer rotating ring, and a communication hole communicated with the polishing air bag is formed in the sliding cavity.
Further, the communication hole is arranged at one side of the edge of the positioning rod.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;
FIG. 3 is a schematic view of an end face structure of a main body of a melt injection apparatus according to the present invention;
FIG. 4 is a schematic diagram of the edging mechanism of the present invention;
FIG. 5 is a schematic view of the inner ring structure of the present invention;
FIG. 6 is a schematic view of the outer ring structure of the present invention;
FIG. 7 is a schematic view showing the structure of the polishing bladder in the state of injection pressure according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of FIG. 7B in accordance with the present invention;
FIG. 9 is a schematic view showing a polishing state structure of a polishing bladder of the present invention;
FIG. 10 is an enlarged schematic view of the structure of FIG. 9C in accordance with the present invention;
FIG. 11 is a schematic view of a jack lever structure of the present invention;
FIG. 12 is a schematic structural view of a cooling system for profile injection molding of the present invention;
FIG. 13 is a schematic cross-sectional view of a cooling system for profile injection molding according to the present invention;
FIG. 14 is a schematic cross-sectional view of a synchronization module and a sensing module according to the present invention;
FIG. 15 is a schematic cross-sectional view of the cooling chamber of the present invention after being flattened.
In the figure: 1. pressing the block; 2. positioning holes; 3. a feeding device; 4. a melt injection molding apparatus body; 5. a base; 6. rotating the screw rod; 7. a ball nut; 8. a master mold; 10. a bevel portion; 11. inserting a connecting rod; 12. a positioning rod; 13. a sealing layer; 14. a male mold; 15. a trimming mechanism; 16. tooth slots; 17. an inclined surface groove; 18. an inner swivel; 19. polishing the air bag; 20. an outer swivel; 21. a positioning rod; 22. a communication hole; 23. a sliding chamber; 24. a slide bar; 25. a rotating chamber; 26. a gear; 27. a first rotating screw; 28. a spring; 29. a second rotating screw rod; 31. a water inlet pipe; 32. a water outlet pipe; 33. a cooling chamber; 41. a synchronization key; 42. a synchronization groove; 43. a tension spring; 51. a positioning seat; 52. a telescopic seat; 53. a blocking groove; 61. a water inlet; 62. a water outlet; 63. a water-cooled tube.
Detailed Description
Example 1
As shown in fig. 1-3, an injection molding device for an irregular plastic part comprises a base 5, wherein one side of the upper end face of the base 5 is fixedly connected with a melting injection molding device main body 4, the upper end face of the melting injection molding device main body 4 is provided with a feeding device 3, one side of the side end face of the melting injection molding device main body 4 is in driving connection with a rotating screw rod 6, the upper end face of the base 5 is in sliding connection with a pressing block 1, a ball nut 7 matched with the rotating screw rod 6 is arranged in the pressing block 1, one side of the melting injection molding device main body 4, which is jointed with the pressing block 1, is fixedly connected with a male die 14, the outer end face of the male die 14 is sleeved with a edging mechanism 15 for processing the edge of a finished product, and one side, which is jointed with the pressing block 1 and the melting injection molding device main body 4, is provided with a female die 8 matched with the male die 14.
Further, an injection nozzle and a negative pressure adsorption mechanism are arranged on the surface of the male die 14.
During the use, through the rotation of drive rotation lead screw 6, will drive under the effect of ball nut 7, pressfitting piece 1 removes relative melting injection molding device main part 4, make master model 8 and public mould 14 lock each other, throw into the raw materials of moulding plastics through throw material device 3 after pouring into melting injection molding device main part 4 melting pressurization injection between public mould 14 and master model 8 and cool down the shaping, control the reversal of rotation lead screw 6 after the shaping can make public mould 14 and master model 8 separation, can reach injection moulding's product after the separation, and public mould 14 and master model 8 are connected with melting injection molding device main part 4 and pressfitting piece 1 assembled respectively, make public mould 14 and master model 8 can be conveniently changed.
Example two
On the basis of the first embodiment, as shown in fig. 1-3, one end of the melt injection molding device main body 4, which is attached to the pressing block 1, is fixedly connected with a positioning rod 12, and the pressing block 1 is provided with a positioning hole 2 which is matched with the positioning rod 12.
When the positioning rod is used, the positioning rod 12 is inserted into the positioning hole 2, so that the accuracy of the butt joint of the male die 14 and the female die 8 can be effectively improved.
As shown in fig. 1 to 6, the edge finishing mechanism 15 comprises an inner swivel 18, a polishing air bag 19 and an outer swivel 20, the outer swivel 20 is rotatably connected to the end face of the main body 4 of the melt injection molding device, the inner swivel 18 is rotatably sleeved inside the outer swivel 20, and the polishing air bag 19 is fixedly connected to the inner wall of the inner swivel 18.
Further, the polishing air bag 19 adopts an elastic structure, and polishing particles or polishing fibers are attached to the surface of the polishing air bag 19.
During the use, after the product injection moulding, owing to the circumstances that the edge that the mould joined often has burr and abrupt extension, make its inside polishing gasbag 19 synchronous rotation through the rotation of receipts limit mechanism 15, through supplying the pressure to polishing gasbag 19, make polishing gasbag 19 inflation, and laminate with injection moulding product, and owing to polishing gasbag 19 adopts pressure control, and then adaptable multiple different abnormal shape products, receipts limit mechanism 15's function will not receive the restriction of product form, improve the adaptability of device greatly, and polishing gasbag 19 and product edge contact, through continuous rotation, polish the burr and abrupt extension to the product edge, and polishing gasbag 19's fast rotation also can improve product edge temperature and help the smoothness of polishing to the burr.
As shown in fig. 1-10, a rotating cavity 25 is formed in the melt injection molding device main body 4, a trimming mechanism 15 is movably arranged in the rotating cavity 25, and a gear 26 matched with the tooth slot 16 is fixedly connected to the side end surface of the rotating screw rod 6.
When the rotary screw rod is used, the screw rod 6 is rotated to drive the gear 26 to rotate, the gear 26 is meshed with the tooth grooves 16 to drive the outer rotary ring 20 to rotate, the outer rotary ring 20 is further driven to drive the inner rotary ring 18, and the polishing air bag 19 on the inner wall of the inner rotary ring 18 is rotated, so that the edge of an injection molding product is polished and polished, and the surface of the rotary cavity 25 is sealed through the sealing layer 13.
As shown in fig. 1-6 and 11, as shown in fig. 1-11, the rotating screw rod 6 is provided with two groups, namely a first rotating screw rod 27 and a second rotating screw rod 29, the first rotating screw rod 27 and the second rotating screw rod 29 are symmetrically distributed on two sides of the male die 14, a spring 28 is arranged on the inner wall of the rotating cavity 25, one end of the spring 28, which is away from the rotating cavity 25, is elastically connected with the outer rotating ring 20, the outer rotating ring 20 is eccentrically arranged in the rotating cavity 25 under the action of the spring 28, and the tooth grooves 16 are meshed with the second rotating screw rod 29.
As shown in fig. 1-11, a sliding cavity 23 is arranged between the inner rotating ring 18 and the outer rotating ring 20, a positioning rod 21 and a sliding rod 24 are arranged in the sliding cavity 23, the positioning rod 21 is fixedly connected with the inner rotating ring 18, the sliding rod 24 is fixedly connected with the outer rotating ring 20, and a communication hole 22 communicated with the polishing air bag 19 is formed in the sliding cavity 23.
Further, a communication hole 22 is provided on the side of the edge of the positioning rod 21.
When in use, the polishing air bag 19 is required to be injected and rotated along with the injection molding of a product, at the moment, the pressing block 1 is driven by the reversing of the rotating screw rod 6 to continuously move, so that the inserting rod 11 moves the inclined surface part 10 along with the inclined surface groove 17 to be attached, the edge collecting mechanism 15 is pushed away to transversely move under the action of the inclined surface, the tooth groove 16 is further in clamping fit with the first rotating screw rod 27, at the moment, the inner rotating ring 18 is pinned under the action of the inclined surface groove 17 and the inclined surface part 10, so that the inner rotating ring 18 is fixed, the tooth groove 16 drives the outer rotating ring 20 to rotate, the sliding rod 24 in the inner rotating ring slides along the sliding cavity 23, the gas between the positioning rod 21 and the sliding rod 24 is injected into the polishing air bag 19 through the communication hole 22 to expand the polishing air bag 19, and when the sliding rod 24 is attached to the positioning rod 21, the communication hole 22 can be attached to the sliding rod 24, and the communication hole 22 is further closed through the sliding rod 24, so that the internal pressure of the polishing air bag 19 is constant, further, when the sliding rod 24 is jointed with the positioning rod 21, the inclined surface part 10 is separated from the inclined surface groove 17 along with the movement of the inserting connection rod 11, the outer rotary ring 20 is jointed with the second rotary screw rod 29 again under the action of the spring 28, the outer rotary ring 20 is driven by the tooth groove 16 to continue rotating, at the moment, the outer rotary ring 20 keeps the original direction to continue rotating, the polishing air bag 19 is driven to continue rotating under the state that the sliding rod 24 is abutted with the positioning rod 21 and the communication hole 22 is closed, until the pressing block 1 moves to the end of the stroke or the polishing is finished, the rotary screw rod 6 is controlled to reversely rotate, when the inclined surface part 10 is jointed and matched with the inclined surface groove 17, the position of the edge folding mechanism 15 is transversely moved, so that the outer rotary ring 20 is reversely rotated, the positioning rod 21 is separated from the sliding rod 24, the internal volume is increased, and the gas in the polishing air bag 19 flows back into the sliding cavity 23 through the communication hole 22, the polishing air bag 19 is made to be in fit with the product, the product can be taken out through closing the negative pressure adsorption mechanism of the male die 14, an additional treatment process is not needed, the device integration degree is high, the processing process is simplified, and the treatment efficiency of injection molding products, particularly special-shaped workpieces with larger polishing difficulty, is greatly improved.
Working principle: the rotation of the rotary screw rod 6 is driven, the pressing block 1 is driven to move relative to the main body 4 of the melt injection molding device, so that the female die 8 and the male die 14 are buckled with each other, injection molding raw materials are injected into a gap between the male die 14 and the female die 8 through the melt injection molding device main body 4 by the feeding device 3, cooling molding is performed after molding, the male die 14 and the female die 8 can be separated by controlling the inversion of the rotary screw rod 6, an injection molded product can be obtained after separation, the male die 14 and the female die 8 are respectively connected with the main body 4 of the melt injection molding device and the pressing block 1 in an assembling way, the male die 14 and the female die 8 can be conveniently replaced, the accuracy in butt joint of the male die 14 and the female die 8 can be effectively improved through the position grafting of the positioning rod 12 and the positioning hole 2, the polishing air bag 19 in the edge folding mechanism 15 rotates synchronously, the polishing air bag 19 is pressed by the pressure supply, the polishing air bag 19 expands and is attached to injection molding products, and the polishing air bag 19 is controlled by pressure, so that the edge folding mechanism 15 can adapt to various different special-shaped products, the function of the edge folding mechanism 15 is not limited by the shape of the products, the adaptability of the device is greatly improved, the polishing air bag 19 contacts with the edges of the products, burrs and sudden extensions on the edges of the products are polished and ground by continuous rotation, the quick rotation of the polishing air bag 19 can also improve the edge temperature of the products to help smooth the grinding of the burrs, the screw rod 6 is rotated to drive the gear 26 to rotate by the engagement of the gear 26 and the tooth grooves 16, the outer rotating ring 20 is further driven by the inner rotating ring 18, and the polishing air bag 19 on the inner wall of the inner rotating ring 18 rotates to polish and polish the edge of an injection molding product, the surface of the rotating cavity 25 is sealed by the sealing layer 13, the polishing air bag 19 is required to be injected and rotated along with the injection molding of the product, at the moment, the pressing block 1 continuously moves under the reverse driving of the rotating screw rod 6, so that the inserting rod 11 moves along the inclined surface part 10 to be attached to the inclined surface groove 17, the edge collecting mechanism 15 is pushed away to move transversely under the action of the inclined surface, the tooth groove 16 is clamped and matched with the first rotating screw rod 27, at the moment, the inner rotating ring 18 is pinned under the action of the inclined surface groove 17 and the inclined surface part 10, so that the inner rotating ring 18 is fixed, the tooth groove 16 drives the outer rotating ring 20 to rotate, the sliding rod 24 in the inner rotating ring slides along the sliding cavity 23, and then gas between the positioning rod 21 and the sliding rod 24 is injected into the polishing air bag 19 through the communication hole 22 to expand the polishing air bag 19 under the pressure, when the sliding rod 24 is jointed with the positioning rod 21, the communication hole 22 can be jointed with the sliding rod 24, the communication hole 22 is further closed by the sliding rod 24, so that the internal pressure of the polishing air bag 19 is constant, further, when the sliding rod 24 is jointed with the positioning rod 21, the inclined surface part 10 is separated from the inclined surface groove 17 along with the movement of the inserting connection rod 11, the outer rotating ring 20 is jointed with the second rotating screw rod 29 again under the action of the spring 28, the outer rotating ring 20 is driven to continue to rotate under the driving of the tooth groove 16, at the moment, the outer rotating ring 20 keeps the original direction to continue rotating, the sliding rod 24 is abutted with the positioning rod 21 and drives the polishing air bag 19 to continue rotating under the state of sealing the communication hole 22 until the pressing block 1 is operated to the end of travel or after polishing is finished, the rotating screw rod 6 is controlled to rotate reversely, when the inclined surface part 10 is jointed and matched with the inclined surface groove 17, the position of the edge folding mechanism 15 is transversely moved, thereby make outer change ring 20 reversal, locating lever 21 breaks away from with slide bar 24, the internal volume grow, the gas flows back into in the slip chamber 23 through intercommunicating pore 22 in the polishing gasbag 19 for polishing gasbag 19 cancel with the product laminating, can take out the product through closing the negative pressure adsorption mechanism of public mould 14 this moment, need not extra processing technology, the device degree of integration is high, the course of working is retrencied, the treatment effeciency to the injection moulding product, especially the great special-shaped work piece of polishing degree of difficulty has been improved greatly, the automation efficiency of improvement equipment.
Example III
In the first and second embodiments, the edge trimming mechanism 15 needs to perform edge trimming after the injection molding material is melted and molded by cooling, otherwise, the use of the polishing air bag 19 in the edge trimming mechanism 15 may be affected by the excessive temperature.
Thus, in this example we have provided a cooling system for profile injection molding; by forming the cooling cavity 33 inside the female die 8, cooling water can pass through the outer surface of the whole special-shaped plastic part; the cooling speed is faster; through setting up the plug rod 11 as slidable's synchronous subassembly in this embodiment, rethread master model 8 surface temperature drive response subassembly, and then control synchronous subassembly's motion state, realized that the device just can receive the limit in the cooling, further made the edge receiving device 15 effect better.
In this embodiment, a cooling system for dysmorphism is moulded plastics, including pressfitting piece 1 with set up in master model 8 of pressfitting piece 1 one side still includes: the device comprises a water cooling assembly, an induction assembly and a synchronization assembly; one end of the female die 8 extends out of the pressing block 1, the water cooling assembly is communicated between the pressing block 1 and the female die 8, the synchronous assembly is slidably arranged on one side, close to the female die 8, of the pressing block 1, the induction assembly is arranged on one side, close to the synchronous assembly, of the female die 8, and the synchronous assembly is movably clamped with the induction assembly; the water cooling assembly accelerates the cooling rate by increasing the flow path within the master mold 8, and the sensing assembly controls the motion state of the synchronizing assembly through the temperature of the sidewall of the master mold 8.
As a further aspect of this embodiment, the water cooling assembly includes: a water inlet pipe 31, a water outlet pipe 32, a cooling cavity 33, a water inlet 61, a water outlet 62 and a water cooling pipe 63; the top and the bottom of pressfitting piece 1 are provided with respectively and run through pressfitting piece 1 inlet tube 31 with outlet pipe 32, inlet tube 31 with outlet pipe 32 corresponds the setting, inlet tube 31 with outlet pipe 32 set up in pressfitting piece 1 is close to one side of master model 8, seted up in the master model 8 cooling chamber 33, the master model 8 top corresponds the position of inlet tube 31 has been seted up water inlet 61, inlet tube 31 passes through water inlet 61 stretches into inside cooling chamber 33, the master model 8 bottom corresponds outlet pipe 32's position has been seted up delivery port 62, outlet pipe 32 pass through delivery port 62 with cooling chamber 33 intercommunication.
As a further solution of this embodiment, the cooling chamber 33 is further provided with a water cooling pipe 63, the water cooling pipe 63 is configured as a "W" pipe, and the water cooling pipe 63 is connected end to end so that the water cooling pipe 63 is integrally wound around the cooling chamber 33 in a cylindrical shape, and the top and bottom of the water cooling pipe 63 are respectively communicated with the water inlet pipe 31 and the water outlet pipe 32.
As a further aspect of this embodiment, the synchronization component includes: a synchronizing key 41, a synchronizing groove 42 and a tension spring 43; the utility model discloses a pressing block, including female die 8, pressing block 1, synchronization groove 42 has been seted up to one side that is close to female die 8, be provided with in the synchronization groove 42 synchronization key 41, synchronization key 41 with be provided with between the synchronization key 41 extension spring 43, extension spring 43 keeps synchronization key 41 has the trend of keeping away from pressing block 1.
As a further aspect of this embodiment, the synchronization component includes: a positioning seat 51, a telescopic seat 52 and a blocking groove 53; the female die 8 is fixedly connected with the positioning seat 51 near the side wall of the synchronous key 41, the telescopic seat 52 is slidably arranged in the positioning seat 51, the telescopic seat 52 is an electric telescopic rod, the blocking groove 53 is formed in one side of the synchronous key 41 near the positioning seat 51, and the blocking groove 53 is movably clamped with the telescopic seat 52.
As a further solution of this embodiment, a temperature sensor is further provided on the outer sidewall of the female mold 8, and the temperature sensor is electrically connected to the telescopic seat 52; in a natural state, the temperature sensor controls the expansion seat 52 to extend, so that the blocking groove 53 is engaged with the expansion seat 52; when the temperature sensor is at a temperature limit value, the temperature sensor controls the telescopic seat 52 to shrink, and the synchronous key 41 is stretched under the action of the stretching spring 43.
The utility model provides a dysmorphism plastic injection molding equipment, including base 5, the up end one side fixedly connected with melting injection molding device main part 4 of base 5, the up end of melting injection molding device main part 4 is equipped with throw material device 3, side terminal surface one side drive connection of melting injection molding device main part 4 has rotation lead screw 6, the up end sliding connection of base 5 has pressfitting piece 1, the inside of pressfitting piece 1 is equipped with the ball nut 7 with the 6 looks adaptation of rotation lead screw, one side fixedly connected with male mould 14 of melting injection molding device main part 4 and pressfitting piece 1 laminating, the outer terminal surface cover of male mould 14 is equipped with the receipts limit mechanism 15 that handles the finished product edge, pressfitting piece 1 and melting injection molding device main part 4 laminating one side be equipped with male mould 14 looks adaptation's master model 8.
As a further solution of this embodiment, the inner ring 18 is internally provided with a bevel groove 17, one end of the synchronizing key 41 facing away from the pressing block 1 extends through to the inside of the melt injection molding device main body 4, and one side of the synchronizing key 41 is fixedly connected with a bevel portion adapted to the bevel groove 17.
Other features are the same as those of the first and second embodiments, and will not be described again;
in this embodiment, the water inlet pipe 31, the water outlet pipe 32 and the water cooling pipe 63 are provided, so that the cooling water can pass through the outer surface of the whole special-shaped plastic part; the cooling speed is faster; then, through the arranged synchronous component and the sensing component, in a natural state, the temperature sensor controls the expansion seat 52 to extend, so that the blocking groove 53 is clamped with the expansion seat 52; when the temperature sensor is at a temperature lower limit (i.e. cooling has been completed), the temperature sensor controls the retraction of the telescopic seat 52, the synchro-key 41 being extended by the tension spring 43. In the injection molding process of the product, only when the polishing air bag 19 needs to be injected and rotated, at the moment, along with the continuous movement of the pressing block 1 driven by the rotating screw rod 6, after the abnormal plastic part is cooled by the water cooling pipe 63, the synchronous key 41 stretches under the action of the stretching spring 43, so that the synchronous key 41 moves the inclined surface part 10 along with the synchronous key to be attached to the inclined surface groove 17, and pushes away the edge collecting mechanism 15 to transversely move under the action of the inclined surface, so that the tooth groove 16 is clamped and matched with the first rotating screw rod 27, at the moment, the inner rotating ring 18 is pinned under the action of the inclined surface groove 17 and the inclined surface part 10, so that the inner rotating ring 18 is fixed, the tooth groove 16 drives the outer rotating ring 20 to rotate, so that the sliding rod 24 in the inner rotating ring slides along the sliding cavity 23, and then the gas between the positioning rod 21 and the sliding rod 24 is injected into the polishing air bag 19 through the communication hole 22, so that the polishing air bag 19 is pressed and expanded, and when the sliding rod 24 is attached to the positioning rod 21, the communication hole 22 can be closed with the sliding rod 24, so that the pressure in the polishing air bag 19 is constant, and the internal pressure of the polishing air bag 19 is further attached to be better; the reverse rotation principle of the rotary screw rod 6 is the same as that described above, and the description of this embodiment is omitted.

Claims (6)

1. A cooling system for special-shaped injection molding, includes the base, its characterized in that: the automatic injection molding machine comprises a base, and is characterized in that one side of the upper end face of the base is fixedly connected with a melting injection molding device main body, the upper end face of the melting injection molding device main body is provided with a feeding device, one side of the side end face of the melting injection molding device main body is in driving connection with a rotating screw rod, the upper end face of the base is in sliding connection with a pressing block, a ball nut matched with the rotating screw rod is arranged in the pressing block, one side of the melting injection molding device main body, which is attached to the pressing block, is fixedly connected with a male die, the outer end face of the male die is sleeved with a trimming mechanism for processing the edge of a finished product, and one side of the pressing block, which is attached to the melting injection molding device main body, is provided with a female die matched with the male die;
the edge folding mechanism comprises an inner rotating ring, a polishing air bag and an outer rotating ring, wherein the outer rotating ring is rotationally connected to the end face of the main body of the melt injection molding device, the inner rotating ring is rotationally sleeved in the outer rotating ring, and the polishing air bag is fixedly connected to the inner wall of the inner rotating ring;
the inner part of the main body of the melting injection molding device is provided with a rotating cavity, the edge folding mechanism is movably arranged in the rotating cavity, and a gear matched with the tooth slot is fixedly connected to the side end surface of the rotating screw rod;
the device also comprises a water cooling assembly, an induction assembly and a synchronization assembly;
one end of the female die extends out of the pressing block, the water cooling assembly is communicated between the pressing block and the female die, the synchronous assembly is slidably arranged on one side, close to the female die, of the pressing block, the induction assembly is arranged on one side, close to the synchronous assembly, of the female die, and the synchronous assembly is movably clamped with the induction assembly; the water cooling component increases the cooling speed by increasing the flow path in the female die, and the induction component controls the motion state of the synchronous component through the temperature of the side wall of the female die;
the water cooling assembly includes: the device comprises a water inlet pipe, a water outlet pipe, a cooling cavity, a water inlet, a water outlet and a water cooling pipe; the top and the bottom of pressfitting piece are provided with respectively and run through the pressfitting piece the inlet tube with the outlet pipe, the inlet tube with the outlet pipe corresponds the setting, the inlet tube with the outlet pipe set up in the pressfitting piece is close to one side of master model, seted up in the master model the cooling chamber, the master model top corresponds the position of inlet tube has been seted up the water inlet, the inlet tube passes through the water inlet stretches into inside the cooling chamber, the master model bottom corresponds the position of outlet pipe has been seted up the delivery port, the outlet pipe passes through the delivery port with the cooling chamber intercommunication.
2. The cooling system for profile injection molding of claim 1, wherein:
the cooling cavity is internally provided with a water cooling pipe, the water cooling pipe is arranged into a W-shaped pipeline, the water cooling pipe is connected end to end, so that the whole water cooling pipe is cylindrical and wound inside the cooling cavity, and the top and the bottom of the water cooling pipe are respectively communicated with the water inlet pipe and the water outlet pipe.
3. The cooling system for profile injection molding according to claim 2, wherein:
the synchronization assembly includes: a synchronizing key, a synchronizing groove and a tension spring;
the pressing block is provided with a synchronous groove at one side close to the female die, the synchronous groove is internally provided with a synchronous key, the synchronous key and the synchronous key are provided with an extension spring, and the extension spring keeps the synchronous key away from the pressing block;
an inclined plane groove is formed in the inner part of the inner rotating ring, one end, away from the pressing block, of the synchronous key penetrates through and extends to the inside of the main body of the melt injection molding device, and one side of the synchronous key is fixedly connected with an inclined plane part matched with the inclined plane groove; the inner wall in the rotation chamber is equipped with the spring, and the spring deviates from the one end in the rotation chamber and links to each other with outer swivel, outer swivel eccentric setting is in the inside in the rotation chamber under the effect of spring, tooth's socket meshes with the rotation lead screw mutually.
4. A cooling system for profile injection molding according to claim 3, wherein:
the synchronization assembly includes: the positioning seat, the telescopic seat and the blocking groove;
the female die is close to the side wall fixedly connected with of the synchronous key the positioning seat, the sliding of positioning seat is provided with the telescopic seat, the telescopic seat sets up to electric telescopic handle, the synchronous key is close to one side of positioning seat has been seted up the stop groove, stop groove activity block the telescopic seat.
5. The cooling system for profile injection molding of claim 4, wherein:
the outer side wall of the female die is also provided with a temperature sensor, and the temperature sensor is electrically connected with the telescopic seat;
in a natural state, the temperature sensor controls the expansion seat to extend, so that the blocking groove is clamped with the expansion seat; when the temperature sensor is at the limit value under the temperature, the temperature sensor controls the telescopic seat to shrink, and the synchronous key stretches under the action of the stretching spring.
6. An injection molding device is moulded to dysmorphism, its characterized in that: a cooling system for profile injection molding comprising any one of claims 1-5.
CN202211086581.6A 2022-09-07 2022-09-07 Cooling system for special-shaped injection molding and special-shaped plastic part injection molding equipment Active CN115320046B (en)

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