CN119189186A - A spiral structure extrusion type forming die and forming method thereof - Google Patents
A spiral structure extrusion type forming die and forming method thereof Download PDFInfo
- Publication number
- CN119189186A CN119189186A CN202411710761.6A CN202411710761A CN119189186A CN 119189186 A CN119189186 A CN 119189186A CN 202411710761 A CN202411710761 A CN 202411710761A CN 119189186 A CN119189186 A CN 119189186A
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- threaded rod
- die
- injection molding
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- 238000001125 extrusion Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000001746 injection moulding Methods 0.000 claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 229920003023 plastic Polymers 0.000 claims description 40
- 239000004033 plastic Substances 0.000 claims description 40
- 238000009434 installation Methods 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 claims description 11
- 239000000110 cooling liquid Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 239000002991 molded plastic Substances 0.000 abstract 1
- 229920000426 Microplastic Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000007306 turnover Effects 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
- B29C45/03—Injection moulding apparatus
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/02—Deburring or deflashing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C2045/4036—Ejector constructions; Ejector operating mechanisms driven by a screw and nut mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to the technical field of extrusion molding dies, in particular to a screw structure extrusion molding die and a molding method thereof, comprising two supporting legs, wherein a supporting plate is fixedly arranged between the two supporting legs, an injection molding mechanism is arranged at the top of the supporting plate, the injection molding mechanism comprises an extrusion bin, the extrusion storehouse fixed mounting is at the top of backup pad, the top fixed mounting in extrusion storehouse has the feeding storehouse, extrusion storehouse is linked together with the feeding storehouse, top cap fixed mounting is in the lateral part of backup pad, the inlet pipe has been seted up at the top of top cap, the discharge gate has been seted up to the bottom of backup pad. The ejection mechanism can automatically eject the molded plastic product out of the mold core without waiting for demolding time manually, thereby reducing the molding cycle of each product, ensuring that the mold can rapidly perform the next injection molding, and ensuring the integrity and the dimensional accuracy of the product in the demolding process by automatic ejection.
Description
Technical Field
The invention relates to the technical field of extrusion forming dies, in particular to a screw structure extrusion forming die and a forming method thereof.
Background
Along with the continuous improvement of the requirements of products on the dimensional accuracy and the shape accuracy, the processing accuracy of the spiral structure extrusion forming die is continuously improved, for example, in the aerospace field, for some precise parts with spiral structures, the dimensional accuracy of the die is required to reach the micrometer or even submicron level, so that more advanced processing equipment and processes, such as a high-accuracy numerical control processing center, slow wire cutting and the like, are required to be adopted to ensure the forming accuracy of the die.
However, when the existing injection mold is used for injection molding operation, manual flash cutting is needed for plastic products, and under the condition of manually processing the flash, workers need to spend a great deal of time to use cutters, polishing tools and the like to remove the flash on the products, so that the influence of factors such as fatigue and skill level of the workers is easily caused, the delay of the whole production flow is caused, and the production requirements of large scale and high efficiency cannot be met.
Disclosure of Invention
In order to overcome the above disadvantages, the present invention provides a screw structure extrusion molding die which overcomes the above technical problems or at least partially solves the above problems.
The invention is realized in the following way:
The invention provides a spiral structure extrusion molding die, which comprises two supporting legs, wherein a supporting plate is fixedly arranged between the two supporting legs, an injection molding mechanism is arranged at the top of the supporting plate, and the injection molding mechanism comprises:
The extrusion bin is fixedly arranged at the top of the supporting plate, the top of the extrusion bin is fixedly provided with a feeding bin, and the extrusion bin is communicated with the feeding bin;
The top cover is fixedly arranged on the side part of the supporting plate, the top of the top cover is provided with a feeding pipe, the bottom of the supporting plate is provided with a discharging hole, and the discharging hole is communicated with the extrusion bin;
the upper die is fixedly arranged at the bottom of the top cover through bolts, an upper die core is fixedly arranged at the bottom of the upper die, an injection molding opening is formed in the upper die core, and the injection molding opening is communicated with the feeding pipe.
In one embodiment of the invention, a bottom plate is fixedly arranged on the side part of the supporting leg, a hydraulic telescopic rod is fixedly arranged on the top of the bottom plate, a plurality of telescopic rods are arranged on the top of the bottom plate, a supporting seat is fixedly arranged on the top of the hydraulic telescopic rod, a first limiting plate is fixedly arranged on the top of the supporting seat, an ejection mechanism is arranged on the top of the first limiting plate, a lower die is arranged in the first limiting plate, a lower die core is arranged on the surface of the lower die, cutting mechanisms are arranged on two sides of the supporting seat, circulating hoses are fixedly arranged on two sides of the first limiting plate, and a circulating pump is fixedly arranged on the side part of the bottom plate and fixedly connected with the top of the circulating pump.
In one embodiment of the invention, the ejection mechanism comprises a side plate, the side plate is fixedly arranged at the top of the first limiting plate, a transverse plate is fixedly arranged at the side part of the side plate, a sliding groove is formed in the surface of the transverse plate, a toothed plate is slidably arranged in the sliding groove, a first thread cylinder is fixedly arranged at the bottom of the top cover, a first threaded rod is rotatably arranged at the top of the first limiting plate, and the first threaded rod is in threaded connection with the first thread cylinder.
In one embodiment of the invention, a first gear is rotatably mounted on the top of the first limiting plate, a first belt pulley is rotatably mounted on the top of the supporting seat, a second gear is fixedly mounted on the top of the first belt pulley, the first gear is meshed with the second gear, a second belt pulley is rotatably mounted on the top of the supporting seat, and the second belt pulley is connected with the first belt pulley through a belt.
In one embodiment of the invention, a second thread cylinder is fixedly arranged at the top of the second belt pulley, a second threaded rod is arranged in the second thread cylinder in a threaded manner, an ejection block is fixedly arranged at the top of the second threaded rod, an ejection groove is formed in the surface of the lower mold core, and the ejection groove is in sliding connection with the ejection block.
In one embodiment of the invention, the cutting mechanism comprises a third gear, the third gear is fixedly arranged on the surface of the first threaded rod, the third gear is meshed with the toothed plate, a third threaded rod is fixedly arranged on the side part of the toothed plate, the first mounting seats are fixedly arranged on two sides of the supporting seat, a third belt pulley is rotatably arranged on the side part of the first mounting seat, the third threaded rod penetrates through the side part of the first mounting seat and is in sliding connection with the first mounting seat, and the third threaded rod is in threaded connection with the third belt pulley.
In one embodiment of the invention, the two sides of the supporting seat are fixedly provided with the second installation seat, the surface of the second installation seat is rotatably provided with the fourth belt pulley, the fourth belt pulley is connected with the third belt pulley through a belt, the inside of the second installation seat is rotatably provided with the fourth threaded rod, the fourth threaded rod penetrates through the whole second installation seat and is in threaded connection with the fourth belt pulley, the end part of the fourth threaded rod is fixedly provided with the installation plate, and the other end of the fourth threaded rod is fixedly provided with the second limiting plate.
In one embodiment of the invention, two limit rods are slidably mounted in the second mounting seat, the two limit rods are fixedly connected with the second limit plate, a fixed plate is fixedly mounted on the side portion of the mounting plate, a cutting knife is slidably mounted on the surface of the mounting plate, springs are mounted between the cutting knife and the fixed plate, and a plurality of springs are arranged.
In one embodiment of the invention, the side part of the mounting plate is fixedly provided with the chopping board, the top part of the chopping board is fixedly provided with the first partition board, the top part of the cutting knife is fixedly provided with the second partition board, the bottom part of the first partition board and the top part of the second partition board are fixedly provided with electromagnets, the side part of the second mounting seat is fixedly provided with the induction button, and the side part of the second limiting plate is fixedly provided with the induction plate.
The extrusion molding method of the spiral structure is suitable for the extrusion molding die of the spiral structure, and comprises the following steps:
s1, putting plastic particles into a feeding bin by a worker, heating and melting the plastic particles in the extrusion bin through the feeding bin, and moving the plastic particles in the extrusion bin under the action of screw extrusion;
s2, starting a hydraulic telescopic rod to enable the whole supporting seat to move upwards, enabling the upper mold core to be in contact with the lower mold core, enabling plastic particles to enter the injection molding opening through the feed pipe, and performing injection molding;
S3, after injection molding is completed, starting a hydraulic telescopic rod to separate the upper mold core from the lower mold core, and starting a circulating pump to enable cooling liquid to circularly flow in the first limiting plate to cool plastic products;
S4, when the upper die and the lower die are separated, the first thread cylinder moves on the surface of the first threaded rod, so that the first threaded rod rotates, the ejection block ejects upwards, and the plastic product in the lower die core is ejected upwards, so that automatic demoulding operation is realized;
And S5, simultaneously, the toothed plate is driven to slide in the sliding groove by the rotation of the second threaded rod, so that the cutting knife moves to the top of the burr, and the burr is cut under the action of the electromagnet.
The invention provides a spiral structure extrusion forming die, which has the beneficial effects that:
1. through the setting of ejection mechanism, can be to the automatic ejecting mold core of fashioned plastic product, need not the manual work and wait for the drawing of patterns time to reduce the molding cycle of every product, guarantee that the mould can carry out injection moulding next time fast, automatic ejecting can ensure the integrality and the dimensional accuracy of product in the drawing of patterns in-process, reduce the rejection rate.
2. Through cutting mechanism's setting, can be automatic carry out the cutting of overlap to ejecting plastic product, automatic overlap cutting system can closely cooperate with injection moulding process, carries out the overlap cutting immediately after the product drawing of patterns, need not artifical transport and secondary operation, can make production flow compacter like this, reduces the turnover time of product in the workshop.
3. Through the setting of injection molding mechanism, under the drive of circulation hose and circulating pump, can make the coolant liquid carry out circulative cooling in the inside of first limiting plate, the shaping that the injection molding that makes can be quick, quick cooling makes the mould can prepare to mould plastics next time more fast, and when the cooling time of mould reduces, the beat of whole injection molding process accelerates, and the mould can more frequently put into use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure provided by an embodiment of the present invention;
FIG. 2 is a schematic view of the bottom structure of a support plate according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a top structure of a lower mold according to an embodiment of the present invention;
Fig. 4 is a schematic view of an internal structure of a first limiting plate according to an embodiment of the present invention;
fig. 5 is a schematic diagram of the overall structure of a lower mold according to an embodiment of the present invention;
Fig. 6 is a schematic structural diagram of an ejection mechanism according to an embodiment of the present invention;
fig. 7 is a schematic bottom view of an upper mold according to an embodiment of the present invention;
FIG. 8 is a schematic view of a cutting mechanism according to an embodiment of the present invention;
FIG. 9 is a schematic view of the top structure of a base plate according to an embodiment of the present invention;
Fig. 10 is an enlarged schematic view of a portion a in fig. 4 according to an embodiment of the present invention.
In the figure, 1, supporting legs; 101, a supporting plate; 2, an injection molding mechanism; 201, extrusion bin, 202, feed bin, 203, top cap, 204, feed tube, 205, discharge port, 206, upper die, 207, upper die core, 208, injection port, 209, bottom plate, 210, hydraulic telescoping rod, 211, telescoping rod, 212, support seat, 213, first limit plate, 214, lower die, 215, lower die core, 216, circulation hose, 217, circulation pump, 3, ejection mechanism, 301, side plate, 302, cross plate, 303, sliding groove, 304, toothed plate, 305, first screw barrel, 306, first threaded rod, 307, first gear, 308, first pulley, 309, second gear, 310, second pulley, 311, second screw barrel, 312, second threaded rod, 313, ejection block, 314, ejection groove, 4, cutting mechanism, 401, third gear, 402, third threaded rod, 403, first mount seat, 404, third pulley, 405, second mount seat, 406, fourth pulley, fourth threaded rod, 408, 409, second limit plate, 414, 412, second pulley, 309, second pulley, 33, second pulley, 41, 412, second pulley, 401, second pulley, 311, second pulley, 401, second pulley, seat, 401, seat, guide plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Referring to fig. 1-10, the technical scheme provides a spiral structure extrusion forming die, which specifically comprises two support legs 1, wherein a support plate 101 is fixedly arranged between the two support legs 1, an injection molding mechanism 2 is arranged at the top of the support plate 101, and the injection molding mechanism 2 comprises an extrusion bin 201, Top cap 203 and last mould 206, extrusion storehouse 201 fixed mounting is at the top of backup pad 101, the top fixed mounting of extrusion storehouse 201 has feeding storehouse 202, the staff puts in the inside of feeding storehouse 202 with the plastic granules, the plastic granules enters into the inside of extrusion storehouse 201 through feeding storehouse 202 and heats and melts, simultaneously remove under the effect of screw extrusion in the inside of extrusion storehouse 201, extrusion storehouse 201 is linked together with feeding storehouse 202, top cap 203 fixed mounting is at the lateral part of backup pad 101, inlet pipe 204 has been seted up at the top of top cap 203, discharge gate 205 has been seted up to the bottom of backup pad 101, discharge gate 205 is linked together with extrusion storehouse 201, upward mould 206 passes through bolt fixed mounting in the bottom of top cap 203, the plastics granules that heat and melt enter into the inlet pipe 204 at top of top cap 203 through discharge gate 205 and carry out the operation of moulding plastics, bolt fixed last mould 206 can be changed according to different user demands, an upper mold core 207 is fixedly arranged at the bottom of the upper mold 206, the shape of the upper mold core 207 can be changed according to the shape of a plastic product to be produced, an injection molding opening 208 is formed in the upper mold core 207, the injection molding opening 208 is communicated with a feed pipe 204, plastic can enter the injection molding opening 208 through the feed pipe 204 for injection molding, a bottom plate 209 is fixedly arranged at the side part of a supporting leg 1, a hydraulic telescopic rod 210 is fixedly arranged at the top of the bottom plate 209, a telescopic rod 211 is fixedly arranged at the top of the bottom plate 209, a plurality of telescopic rods 211 are arranged, a supporting seat 212 is fixedly arranged at the top of the hydraulic telescopic rod 210, a first limiting plate 213 is fixedly arranged at the top of the supporting seat 212, an ejection mechanism 3 is arranged at the top of the first limiting plate 213, a lower mold 214 is arranged in the first limiting plate 213, a lower mold core 215 is arranged on the surface of the lower mold 214, cutting mechanism 4 is installed to the both sides of supporting seat 212, the circulation hose 216 is all fixed mounting in the both sides of first limiting plate 213, the lateral part fixed mounting of bottom plate 209 has circulating pump 217, circulating pump 217's top and circulation hose 216 fixed connection, lower mold core 215's shape and last mold core 207 phase-match, when needs carry out the injection molding, the staff puts in the inside of feeding storehouse 202 with the plastic granules, then extrude between last mold core 207 and the lower mold core 215 through the heating of extrusion storehouse 201, form the shape of plastic product, after the whole injection molding process finishes, start hydraulic telescoping rod 210, make whole supporting seat 212 move downwards, make last mold core 207 and lower mold core 215 separate, simultaneously, start circulating pump 217, circulating pump 217 can carry out the circulation flow at the inside of first limiting plate 213 with the inside of circulation hose 216, thereby cool off lower mold 214, accelerate the shaping time of plastic product.
Referring to fig. 1-10, the present embodiment further proposes that the ejection mechanism 3 includes two side plates 301, the side plates 301 are fixedly mounted on the top of the first limiting plate 213, the two side plates 301 are respectively disposed on two sides of the first limiting plate 213, a transverse plate 302 is fixedly mounted on each side of the two side plates 301, a sliding groove 303 is formed on a surface of the transverse plate 302, a toothed plate 304 is slidingly mounted in the sliding groove 303, a first threaded cylinder 305 is fixedly mounted on the bottom of the top cover 203, a first threaded rod 306 is rotatably mounted on the top of the first limiting plate 213, the first threaded rod 306 is in threaded connection with the first threaded cylinder 305, when the upper mold 206 is separated from the lower mold 214, the first threaded cylinder 305 moves on the surface of the first threaded rod 306, the first threaded rod 306 rotates on the top of the first limiting plate 213, a first gear 307 is rotatably mounted on the top of the first limiting plate 213, the first gear 307 is fixedly connected with the first threaded rod 306, the top of the supporting seat 212 is rotatably provided with a first belt pulley 308, the top of the first belt pulley 308 is fixedly provided with a second gear 309, the first gear 307 is meshed with the second gear 309, the first gear 307 can be driven to rotate while the first threaded rod 306 rotates, the rotation of the first gear 307 can drive the second gear 309 to rotate, the rotation of the second gear 309 can drive the first belt pulley 308 to rotate, the top of the supporting seat 212 is rotatably provided with a second belt pulley 310, the second belt pulley 310 is connected with the first belt pulley 308 through a belt, the top of the second belt pulley 310 is fixedly provided with a second thread cylinder 311, the internal thread of the second thread cylinder 311 is provided with a second threaded rod 312, the top of the second threaded rod 312 is fixedly provided with an ejection block 313, the surface of the lower mold core 215 is provided with an ejection groove 314, the ejector slot 314 is slidably connected with the ejector block 313, when the first belt pulley 308 rotates, the rotating first belt pulley 308 can drive the second belt pulley 310 to rotate, the rotating second belt pulley 310 can drive the second threaded cylinder 311 to rotate, the second threaded rod 312 moves upwards under the drive of the second threaded cylinder 311, and under the action of the ejector block 313 and the ejector slot 314 with rectangular sections, the second threaded rod 312 can be limited, the ejector block 313 can slide upwards in the ejector slot 314, the plastic product in the lower mold core 215 can be ejected upwards, the automatic demolding operation is realized, the ejector block 313 and the ejector slot 314 are tightly attached, and the plastic can not flow into a gap during injection molding.
Referring to fig. 1-10, the present embodiment further proposes that the cutting mechanism 4 includes a third gear 401, the third gear 401 is fixedly mounted on the surface of the first threaded rod 306, the third gear 401 is meshed with the toothed plate 304, when the first threaded rod 306 rotates, the third gear 401 can be driven to rotate, the rotating third gear 401 can drive the toothed plate 304 to slide in the sliding groove 303, a third threaded rod 402 is fixedly mounted on the side portion of the toothed plate 304, the sliding of the toothed plate 304 can drive the third threaded rod 402 to move, a first mounting seat 403 is fixedly mounted on both sides of the support seat 212, a third belt pulley 404 is rotatably mounted on the side portion of the first mounting seat 403, the third threaded rod 402 penetrates to the side portion of the first mounting seat 403 and is slidably connected with the first mounting seat 403, the third threaded rod 402 is in threaded connection with the third belt pulley 404, the movement of the third threaded rod 402 can drive the third belt pulley 404 to rotate, the two sides of the supporting seat 212 are fixedly provided with the second installation seat 405, the surface of the second installation seat 405 is rotatably provided with the fourth belt pulley 406, the fourth belt pulley 406 is connected with the third belt pulley 404 through a belt, the rotation of the third belt pulley 404 can drive the fourth belt pulley 406 to rotate, the fourth threaded rod 407 is rotatably arranged in the second installation seat 405, the fourth threaded rod 407 penetrates through the whole second installation seat 405 and is in threaded connection with the fourth belt pulley 406, the rotation of the fourth belt pulley 406 can drive the fourth threaded rod 407 to move in the second installation seat 405, the end part of the fourth threaded rod 407 is fixedly provided with the installation plate 408, the other end of the fourth threaded rod 407 is fixedly provided with the second limiting plate 409, the inside of the second installation seat 405 is slidably provided with the limiting rod 410, the limiting rod 410 is provided with two, the two limiting rods 410 are fixedly connected with the second limiting plate 409, the fixed plate 411 is fixedly arranged at the side part of the mounting plate 408, the cutting knife 412 is slidably arranged on the surface of the mounting plate 408, the springs 413 are arranged between the cutting knife 412 and the fixed plate 411, the chopping block 414 is fixedly arranged at the side part of the mounting plate 408, the first partition 4151 is fixedly arranged at the top part of the chopping block 414, the second partition 4152 is fixedly arranged at the top part of the cutting knife 412, the electromagnets 416 are fixedly arranged at the bottom part of the first partition 4151 and the top part of the second partition 4152, the sensing button 417 is fixedly arranged at the side part of the second mounting seat 405, the sensing plate 418 is fixedly arranged at the side part of the second limiting plate 409, when the upper die 206 and the lower die 214 are separated, the second threaded rod 312 rotates, the rotation of the second threaded rod 312 can drive the toothed plate 304 to slide in the sliding groove 303, the sliding of the toothed plate 304 can drive the third threaded rod 402 to move, the moving of the third threaded rod 402 can drive the third belt pulley 404 to rotate, the rotating of the third belt pulley 404 can drive the fourth belt pulley 406 to rotate, the rotating fourth belt pulley 406 can drive the fourth threaded rod 407 to move in the second mounting seat 405, so as to drive the mounting plate 408 to move, the movement of the mounting plate 408 can drive the cutting knife 412 to move forward, so that burrs of a plastic product are positioned at the bottom of the cutting knife 412, when the sensing plate 418 at the side part of the second limiting plate 409 contacts with the sensing button 417, the electromagnet 416 can be started, the cutting knife 412 can move downward under the action of the electromagnet 416, so as to cut burrs of the plastic product, after the burrs of the plastic product are cut, the worker can directly take out the plastic product from the lower mold 214, and then activate the hydraulic telescopic rod 210 to move the hydraulic telescopic rod 210 upwards, so that the upper mold 206 and the lower mold 214 are re-inlaid together, thereby completing the next injection molding operation.
Referring to fig. 1-10, the present embodiment further provides a spiral structure extrusion molding method, which is applicable to the above spiral structure extrusion molding mold, and includes the following steps:
S1, putting plastic particles into a feeding bin 202 by a worker, enabling the plastic particles to enter the extrusion bin 201 through the feeding bin 202 to be heated and melted, and simultaneously moving in the extrusion bin 201 under the action of screw extrusion;
s2, starting a hydraulic telescopic rod 210, enabling the whole supporting seat 212 to move upwards, enabling the upper mold core 207 to be in contact with the lower mold core 215, enabling plastic particles to enter the injection molding opening 208 through the feed pipe 204, and performing injection molding;
S3, after injection molding is completed, starting a hydraulic telescopic rod 210 to separate the upper mold core 207 from the lower mold core 215, and simultaneously starting a circulating pump 217 to enable cooling liquid to circularly flow in the first limiting plate 213 to cool plastic products;
S4, when the upper die 206 and the lower die 214 are separated, the first thread cylinder 305 moves on the surface of the first threaded rod 306, so that the first threaded rod 306 rotates, the ejection block 313 ejects upwards, and the plastic product in the lower die core 215 is ejected upwards, so that automatic demoulding operation is realized;
And S5, simultaneously, the rotation of the second threaded rod 312 drives the toothed plate 304 to slide in the sliding groove 303, so that the cutting knife 412 moves to the top of the burrs, and the burrs are cut under the action of the electromagnet 416.
Specifically, the working process or working principle of the spiral structure extrusion molding die is that firstly, a worker puts plastic particles into the feeding bin 202, the plastic particles enter the extrusion bin 201 through the feeding bin 202 to be heated and melted, meanwhile, the plastic particles move in the extrusion bin 201 under the action of spiral extrusion, after the whole injection molding process is finished, the hydraulic telescopic rod 210 is started, the whole supporting seat 212 moves downwards, the upper die core 207 and the lower die core 215 are separated, meanwhile, the circulating pump 217 is started while injection molding, the circulating pump 217 can circulate cooling liquid in the circulating hose 216 in the first limiting plate 213, so that the lower die 214 is cooled, and the molding time of plastic products is shortened.
When the upper die 206 is separated from the lower die 214, the first threaded cylinder 305 moves on the surface of the first threaded rod 306, so that the first threaded rod 306 rotates on the top of the first limiting plate 213, when the first threaded rod 306 rotates, the first gear 307 can be driven to rotate, the second gear 309 can be driven to rotate by rotation of the first gear 307, the first belt pulley 308 can be driven to rotate by rotation of the second gear 309, when the first belt pulley 308 rotates, the second belt pulley 310 can be driven to rotate by rotation of the first belt pulley 308, the second threaded cylinder 311 can be driven to rotate by rotation of the second belt pulley 310, the second threaded rod 312 moves upwards by the driving of the second threaded cylinder 311, and under the action of the ejector block 313 and the ejector slot 314 with rectangular cross sections, the limiting operation of the second threaded rod 312 can be achieved, the ejector block 313 can slide upwards in the ejector slot 314, the upward ejection operation of plastic products in the lower die core 215 can be achieved, and automatic demoulding operation is achieved.
When the upper die 206 is separated from the lower die 214, the second threaded rod 312 rotates, the rotation of the second threaded rod 312 can drive the toothed plate 304 to slide in the sliding groove 303, the sliding of the toothed plate 304 can drive the third threaded rod 402 to move, the movement of the third threaded rod 402 can drive the third belt pulley 404 to rotate, the rotation of the third belt pulley 404 can drive the fourth belt pulley 406 to rotate, the rotating fourth belt pulley 406 can drive the fourth threaded rod 407 to move in the second mounting seat 405, so as to drive the mounting plate 408 to move, the movement of the mounting plate 408 can enable the cutting knife 412 to move forward, so that burrs of a plastic product are located at the bottom of the cutting knife 412, when the sensing plate 418 at the side part of the second limiting plate 409 contacts the sensing button 417, the electromagnet 416 can be started, and the cutting knife 412 can move downwards under the action of the electromagnet 416, so as to cut burrs of the plastic product.
Claims (10)
1. The utility model provides a spiral structure extrusion molding mould, includes supporting leg (1), supporting leg (1) are provided with two, two fixed mounting has backup pad (101) between supporting leg (1), its characterized in that, injection molding machine constructs (2) are installed at the top of backup pad (101), injection molding machine constructs (2) include:
the extrusion bin (201) is fixedly arranged at the top of the supporting plate (101), the feeding bin (202) is fixedly arranged at the top of the extrusion bin (201), and the extrusion bin (201) is communicated with the feeding bin (202);
The top cover (203) is fixedly arranged on the side part of the supporting plate (101), a feeding pipe (204) is arranged at the top of the top cover (203), a discharging hole (205) is formed in the bottom of the supporting plate (101), and the discharging hole (205) is communicated with the extrusion bin (201);
Go up mould (206), go up the bottom of mould (206) through bolt fixed mounting in top cap (203), the bottom fixed mounting of going up mould (206) has last mold core (207), injection molding mouth (208) have been seted up to the inside of going up mold core (207), injection molding mouth (208) are linked together with inlet pipe (204).
2. The spiral structure extrusion molding die of claim 1, wherein a bottom plate (209) is fixedly installed on the side portion of the supporting leg (1), a hydraulic telescopic rod (210) is fixedly installed on the top portion of the bottom plate (209), telescopic rods (211) are fixedly installed on the top portion of the bottom plate (209), a plurality of telescopic rods (211) are arranged, a supporting seat (212) is fixedly installed on the top portion of the hydraulic telescopic rod (210), a first limiting plate (213) is fixedly installed on the top portion of the supporting seat (212), an ejection mechanism (3) is installed on the top portion of the first limiting plate (213), a lower die (214) is placed in the first limiting plate (213), a lower die core (215) is arranged on the surface of the lower die (214), a cutting mechanism (4) is installed on two sides of the supporting seat (212), a circulating hose (216) is fixedly installed on two sides of the first limiting plate (213), a circulating pump (217) is fixedly installed on the side portion of the bottom plate (209), and the top portion of the circulating pump (217) is fixedly connected with the circulating hose (216).
3. The extrusion die for the spiral structure according to claim 2, wherein the ejection mechanism (3) comprises a side plate (301), the side plate (301) is fixedly installed at the top of a first limiting plate (213), a transverse plate (302) is fixedly installed at the side part of the side plate (301), a sliding groove (303) is formed in the surface of the transverse plate (302), a toothed plate (304) is slidably installed in the sliding groove (303), a first threaded cylinder (305) is fixedly installed at the bottom of the top cover (203), a first threaded rod (306) is rotatably installed at the top of the first limiting plate (213), and the first threaded rod (306) is in threaded connection with the first threaded cylinder (305).
4. A screw structure extrusion die according to claim 3, wherein the first gear (307) is rotatably mounted on the top of the first limiting plate (213), the first pulley (308) is rotatably mounted on the top of the supporting base (212), the second gear (309) is fixedly mounted on the top of the first pulley (308), the first gear (307) is meshed with the second gear (309), the second pulley (310) is rotatably mounted on the top of the supporting base (212), and the second pulley (310) is connected with the first pulley (308) through a belt.
5. The extrusion die for the spiral structure according to claim 4, wherein a second threaded cylinder (311) is fixedly installed at the top of the second belt pulley (310), a second threaded rod (312) is installed in the second threaded cylinder (311) in a threaded manner, an ejection block (313) is fixedly installed at the top of the second threaded rod (312), an ejection groove (314) is formed in the surface of the lower die core (215), and the ejection groove (314) is in sliding connection with the ejection block (313).
6. The extrusion die for the spiral structure according to claim 5, wherein the cutting mechanism (4) comprises a third gear (401), the third gear (401) is fixedly installed on the surface of the first threaded rod (306), the third gear (401) is meshed with the toothed plate (304), a third threaded rod (402) is fixedly installed on the side portion of the toothed plate (304), first installation seats (403) are fixedly installed on two sides of the supporting seat (212), a third belt pulley (404) is rotatably installed on the side portion of the first installation seat (403), the third threaded rod (402) penetrates through the side portion of the first installation seat (403) and is in sliding connection with the first installation seat (403), and the third threaded rod (402) is in threaded connection with the third belt pulley (404).
7. The extrusion die for the spiral structure according to claim 6, wherein the second mounting seat (405) is fixedly mounted on two sides of the supporting seat (212), a fourth belt pulley (406) is rotatably mounted on the surface of the second mounting seat (405), the fourth belt pulley (406) is connected with the third belt pulley (404) through a belt, a fourth threaded rod (407) is rotatably mounted in the second mounting seat (405), the fourth threaded rod (407) penetrates through the whole second mounting seat (405) and is in threaded connection with the fourth belt pulley (406), a mounting plate (408) is fixedly mounted at the end part of the fourth threaded rod (407), and a second limiting plate (409) is fixedly mounted at the other end of the fourth threaded rod (407).
8. The extrusion die for the spiral structure according to claim 7, wherein limiting rods (410) are slidably mounted in the second mounting seat (405), two limiting rods (410) are fixedly connected with the second limiting plates (409), fixing plates (411) are fixedly mounted on the side portions of the mounting plates (408), cutting knives (412) are slidably mounted on the surfaces of the mounting plates (408), springs (413) are mounted between the cutting knives (412) and the fixing plates (411), and the springs (413) are provided in plurality.
9. The extrusion die of claim 8, wherein an anvil (414) is fixedly mounted on a side portion of the mounting plate (408), a first partition plate (4151) is fixedly mounted on a top portion of the anvil (414), a second partition plate (4152) is fixedly mounted on a top portion of the cutter (412), electromagnets (416) are fixedly mounted on bottoms of the first partition plate (4151) and the second partition plate (4152), an induction button (417) is fixedly mounted on a side portion of the second mounting seat (405), and an induction plate (418) is fixedly mounted on a side portion of the second limiting plate (409).
10. A method for extrusion molding of a spiral structure, which is applicable to the extrusion molding die of the spiral structure as claimed in claim 9, and is characterized by comprising the following steps:
S1, putting plastic particles into a feeding bin (202) by a worker, heating and melting the plastic particles in an extrusion bin (201) through the feeding bin (202), and moving the plastic particles in the extrusion bin (201) under the action of screw extrusion;
S2, starting a hydraulic telescopic rod (210) to enable the whole supporting seat (212) to move upwards, enabling the upper mold core (207) to be in contact with the lower mold core (215), enabling plastic particles to enter the injection molding opening (208) through the feed pipe (204) for injection molding;
S3, after injection molding is completed, starting a hydraulic telescopic rod (210) to separate an upper mold core (207) from a lower mold core (215), and starting a circulating pump (217) to enable cooling liquid to circularly flow in the first limiting plate (213) to cool plastic products;
S4, when the upper die (206) is separated from the lower die (214), the first thread cylinder (305) moves on the surface of the first threaded rod (306), so that the first threaded rod (306) rotates, the ejection block (313) ejects upwards, and the plastic product in the lower die core (215) is ejected upwards, so that automatic demoulding is realized;
And S5, simultaneously, the rotation of the second threaded rod (312) drives the toothed plate (304) to slide in the sliding groove (303), so that the cutting knife (412) moves to the top of the burrs, and the burrs are cut under the action of the electromagnet (416).
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| CN202411710761.6A CN119189186B (en) | 2024-11-27 | 2024-11-27 | Spiral structure extrusion forming die and forming method thereof |
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| CN202411710761.6A CN119189186B (en) | 2024-11-27 | 2024-11-27 | Spiral structure extrusion forming die and forming method thereof |
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| CN119189186B CN119189186B (en) | 2025-02-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936720A (en) * | 2021-01-30 | 2021-06-11 | 宁接桂 | Plastic mould shaping extrusion equipment |
| CN117087108A (en) * | 2023-09-05 | 2023-11-21 | 昆山亿晟力精密模具有限公司 | An injection mold with automatic demoulding mechanism |
| CN221067078U (en) * | 2023-10-19 | 2024-06-04 | 大连定德模塑有限公司 | Environment-friendly plastic molding die |
| CN118305967A (en) * | 2024-04-08 | 2024-07-09 | 昆山拓安塑料制品有限公司 | Plastic box injection mold of electric tool |
| CN221717671U (en) * | 2023-10-31 | 2024-09-17 | 无锡市方正模塑科技有限公司 | An injection mold capable of realizing trimming |
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- 2024-11-27 CN CN202411710761.6A patent/CN119189186B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936720A (en) * | 2021-01-30 | 2021-06-11 | 宁接桂 | Plastic mould shaping extrusion equipment |
| CN117087108A (en) * | 2023-09-05 | 2023-11-21 | 昆山亿晟力精密模具有限公司 | An injection mold with automatic demoulding mechanism |
| CN221067078U (en) * | 2023-10-19 | 2024-06-04 | 大连定德模塑有限公司 | Environment-friendly plastic molding die |
| CN221717671U (en) * | 2023-10-31 | 2024-09-17 | 无锡市方正模塑科技有限公司 | An injection mold capable of realizing trimming |
| CN118305967A (en) * | 2024-04-08 | 2024-07-09 | 昆山拓安塑料制品有限公司 | Plastic box injection mold of electric tool |
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| Publication number | Publication date |
|---|---|
| CN119189186B (en) | 2025-02-11 |
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