CN114750378B - Injection mold with high injection precision stability - Google Patents
Injection mold with high injection precision stability Download PDFInfo
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- CN114750378B CN114750378B CN202210054911.7A CN202210054911A CN114750378B CN 114750378 B CN114750378 B CN 114750378B CN 202210054911 A CN202210054911 A CN 202210054911A CN 114750378 B CN114750378 B CN 114750378B
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- seat
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- 238000002347 injection Methods 0.000 title claims abstract description 58
- 239000007924 injection Substances 0.000 title claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 54
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005485 electric heating Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 abstract description 34
- 239000000243 solution Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 6
- 239000002826 coolant Substances 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2608—Mould seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7331—Heat transfer elements, e.g. heat pipes
-
- 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
- B29C45/84—Safety devices
-
- 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
- B29C2045/7318—Construction of heating or cooling fluid flow channels multilayered fluid channel constructions
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse 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)
- Fluid Mechanics (AREA)
- Thermal Sciences (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold with high injection precision stability, which belongs to the technical field of injection molds and comprises a heat conduction seat, wherein a heat exchange base is fixedly connected to the top of the heat conduction seat, a lower mold mechanism is sleeved at the top of the heat exchange base, upper mold bases are connected to four corners of the top of the heat exchange base through positioning mechanisms, a liquid injection sleeve is arranged at the top of the upper mold base, an air extraction mechanism is arranged on one side of the lower mold mechanism, a temperature control mechanism is arranged at the bottom of the heat conduction seat, and a discharging mechanism is in transmission connection with one side of the bottom of the lower mold base. According to the invention, the ejection thimble pushes the cooled injection molding piece in the lower die holder to perform demoulding, after the cam continues to rotate, the spring pulls the connecting rod to move downwards to drive the ejection thimble to move downwards for resetting, so that the requirement of quick ejection resetting can be met in the repeated injection molding process, leakage can be avoided when the ejection thimble is in injection molding through matching with the shaft sleeve, and the continuous ejection demoulding requirement can be ensured while the injection molding safety is improved.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to an injection mold with high injection precision stability.
Background
Injection molding is also called injection molding, and is a molding method for injection and molding, and has the advantages of high production speed, high efficiency, automation in operation and various colors, and generally needs to use an injection mold to ensure molding requirements for quick shaping during injection molding.
Chinese patent document CN102990865B discloses a pipe injection mold provided with a front mold, a rear mold, a core group, a tensioning device; the front mold and the rear mold are matched to form an injection molding cavity, and the injection molding cavity consists of a water gap runner communicated with a mold pouring system and a plurality of product molding cavities communicated with the water gap runner; the tensioning device is provided with a hydraulic oil cylinder which is arranged below the front die through a bracket, and a pull block which is arranged at the end part of the piston rod; the core group consists of a plurality of cores; each core is arranged in one product forming cavity, the upper end of each core is matched and fixed with the upper end of the product forming cavity, and the lower end of each core is connected with the pull block; each product forming cavity cooperates with a core to form a tube cavity. The invention has the advantages of ensuring that the central hole of the cross section of the pipe is not deviated, but has certain defects in actual use, such as lack of a discharging mechanism, influencing the discharging safety performance, meanwhile, the residual air in the die cannot be well dispersed, injection molding impurity particles are easy to hover in the inner cavity of the die holder, heat and residual air easily cause defects of injection molding finished products, and when the upper die holder and the lower die holder slide in through the positioning mechanism, repeated sliding in easily causes heat to rise, the thermal expansion easily influences the positioning precision, and the use requirement cannot be well met.
Disclosure of Invention
The invention aims at: in order to solve the problem that a discharging mechanism is lacked, discharging safety performance is affected, meanwhile, residual air in the die cannot be well dispersed, injection molding impurity particles are easy to hover in an inner cavity of a die holder, heat and residual air easily cause defect of injection molding finished products, and when an upper die holder and a lower die holder slide in through a positioning mechanism, repeated sliding in easily causes heat to rise, thermal expansion easily affects positioning accuracy, and the injection molding die is high in stability of injection molding accuracy.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an injection mold that injection accuracy stability is high, includes the heat conduction seat, heat conduction seat top fixedly connected with heat transfer base, heat transfer base top cover is equipped with lower mould mechanism, and heat transfer base top four corners department all is connected with the upper die base through positioning mechanism, and the upper die base top is equipped with annotates the liquid cover, and lower mould mechanism one side is equipped with air extraction mechanism, and the heat conduction seat bottom is equipped with temperature control mechanism, and lower die base bottom one side transmission is connected with discharge mechanism.
As a further description of the above technical solution:
the air extraction mechanism comprises an air pump, an air outlet of the air pump is communicated with an air outlet pipe, an air extraction opening of the air pump is communicated with an air extraction pipe, the other side of the air extraction pipe is communicated with a heat exchange sleeve, the heat exchange sleeve is sleeved outside the temperature control mechanism, the inner cavity of the heat exchange sleeve is fixedly connected with a plurality of heat exchange columns, the top of the heat exchange sleeve is communicated with an exhaust pipe, one end of the exhaust pipe is communicated with an exhaust groove, the exhaust groove is embedded in one side of the lower die mechanism, two sides of the inner cavity of the exhaust groove are fixedly connected with sliding blocks, sliding blocks are slidably connected with sliding blocks, sealing gaskets are fixedly connected between the sliding blocks on two sides, and the sealing gaskets are attached to one side of the exhaust groove.
As a further description of the above technical solution:
the sealing gasket is an elastic plastic mat, and openings are formed in one side of the sealing gasket and one side of the exhaust groove.
As a further description of the above technical solution:
the temperature control mechanism comprises a cooling tank, a liquid pump is fixedly arranged on one side of the cooling tank and is communicated with the cooling tank through a pipeline, one side of the cooling tank is communicated with a heat conduction seat through a liquid cooling pipe, a liquid outlet of the liquid pump is communicated with the liquid cooling pipe, the liquid cooling pipe is communicated with the heat conduction seat, a plurality of heat exchange seats are fixedly connected in the cooling tank, diagonal positions between the connected heat exchange seats are communicated through a circulating pipe, two sides of the circulating pipe are respectively embedded on one side of the cooling tank, the circulating pipe is communicated with an external heat return pipeline, and four corners of the top of the heat conduction seat are all communicated with the positioning mechanism through two communicating pipes.
As a further description of the above technical solution:
the heat exchange seat is characterized in that a groove is formed in one side of the heat exchange seat, a plurality of heat exchange fins are fixedly connected to the inner cavity of the groove, and the heat exchange fins and the heat exchange seat are copper heat conduction plates.
As a further description of the above technical solution:
the lower die mechanism comprises a lower die holder, a heat-conducting worm ring is fixedly connected to the bottom of the lower die holder, a heat-conducting worm disc is meshed with the bottom of the heat-conducting worm ring, the heat-conducting worm disc is fixedly connected to the bottom of an inner cavity of a heat exchange base, a heat-conducting pad is fixedly connected to the inner cavity of the heat exchange base, the heat-conducting pad is sleeved with the lower die holder, a shaft sleeve is embedded in the inner cavity of the lower die holder, a discharging mechanism is sleeved in the shaft sleeve, and a sheath is fixedly connected to the top of the lower die holder.
As a further description of the above technical solution:
the positioning mechanism comprises a positioning rod which is fixedly connected to one side of the bottom of the upper die holder, a positioning sleeve is sleeved at the bottom of the positioning rod, the positioning sleeve is embedded at the top of the heat conducting seat, and the positioning sleeve is communicated with the communicating pipe.
As a further description of the above technical solution:
the bottom of the positioning rod is a conical surface, and the cross section of the inner cavity of the positioning sleeve is of an inner hexagon shape.
As a further description of the above technical solution:
the discharging mechanism comprises a discharging thimble, the discharging thimble is sleeved on one side of an inner cavity of the shaft sleeve, the bottom of the discharging thimble is fixedly connected with a connecting block, the bottom of the connecting block is fixedly connected with a hinge block, one side of the hinge block is hinged with a connecting rod through a pin shaft, the connecting rod is hinged with a fixing seat through a pin shaft, the fixing seat is fixedly connected on one side of a heat exchange base, the heat exchange base is fixedly connected on the bottom of the inner cavity of the lower die seat, the other end of the connecting rod is hinged with a hinge seat through a pin shaft, the bottom of the hinge seat is attached with a cam, one side of the cam is fixedly connected with a rotating shaft, the outer side wall of the rotating shaft is sleeved with a bearing, the bearing is embedded on one side of the lower die seat and the heat exchange base, one end of the rotating shaft is fixedly connected with a motor, the motor is fixedly connected on one side of the heat exchange base through a mounting plate, the connecting rod is close to one end of the hinge block and one side of the inner cavity of the lower die seat is fixedly connected with a pull ring, and the pull rings on two sides of the pull rings are fixedly connected through springs.
As a further description of the above technical solution:
and an electric heating rod is fixedly connected to the inner cavity of the cooling tank.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. according to the invention, the upper die holder can be positioned and pressed down through the positioning mechanism, the motor drives the longer end of the rotating shaft cam to extrude the top hinging seat, the hinging seat can be stressed to push the connecting rod to push the hinging block to drive the ejection ejector pin to move upwards, the ejection ejector pin pushes the cooled injection molding piece in the lower die holder to perform demolding, after the cam continues to rotate, the spring pulls the connecting rod to move downwards to drive the ejection ejector pin to move downwards for resetting, so that the requirement of quick ejection resetting can be met in the repeated injection molding process, and the ejection ejector pin can avoid leakage in injection molding through matching with the shaft sleeve, so that the continuous ejection demolding requirement can be ensured while the injection molding safety is improved.
2. According to the invention, when the high temperature accumulation is generated by continuously injecting the lower die holder and the upper die holder, the lower die holder can quickly guide heat into the heat conducting seat at one side through the heat conducting pad sleeved at the bottom, cooling liquid in the inner cavity of the heat conducting seat can be pumped into the cooling tank through the liquid pumping pump at one side, a plurality of heat exchanging seats in the cooling tank can absorb heat after heat exchange of the cooling liquid in the cooling tank through water circulation pipe at one side, then the high temperature generated by the lower die holder can be quickly conducted and absorbed, the water circulation in the circulation pipe can absorb and reuse the heat in the cooling tank, the heat accumulation in the lower die holder is prevented from influencing the damage of the surface smoothness and stress intensity of an injection product caused by the overhigh heat of the lower die holder, the heat exchange efficiency of continuous production is improved, and the long-time processing injection molding requirement is met.
3. According to the invention, after the injection molding product is discharged, one end of the circulating pipe distributes heat to be in a low-temperature state through circulation, at the moment, the heat exchange sleeve can be used for exhausting air from the heat exchange sleeve through the exhaust pipe at one side, the heat exchange sleeve can be used for exhausting air from the exhaust groove to the inner cavity of the lower die holder through the exhaust pipe at one side, hot air can be used for carrying out contact heat exchange and cooling on a cold liquid pipe in the low-temperature state through the heat exchange sleeve at the bottom and is discharged through the exhaust pipe at one side of the air pump, so that scalding hazard caused by direct discharge of the hot air to station operators can be avoided, and backflow heat exchange can be carried out through the cold liquid pipe, so that the cleanliness of an injection molding space in the heat exchange base is effectively ensured, the accumulation damage caused by continuous operation is further improved, the injection molding precision during continuous processing is improved, and the processing suitability is effectively met.
4. According to the invention, through the designed positioning mechanism, when heat in the heat conduction seat circulates through the one-side circulating pipe, the communicating pipe communicated with the top of the heat conduction seat can conduct friction sliding heat generated by the contact of the positioning sleeve and the positioning rod through water circulation, so that the influence of heat accumulation on positioning precision caused by the continuous positioning contact of the upper die holder through the positioning rod can be avoided, the conical surface at the bottom end of the positioning rod can be prevented from shifting when falling, the positioning machining precision of the lower die holder and the upper die holder during continuous injection machining operation is ensured, and the machining use requirement is met.
5. According to the invention, through the designed exhaust groove and the sealing gasket, the sealing gasket can be clamped into the inner cavity of the L-shaped exhaust groove through the sliding seat at the two sides for assembly, then the sealing gasket with the exhaust holes of different inner diameters can be assembled through the sliding seat, the exhaust adjustment requirements at different injection molding temperatures are adapted, the clamping tightness of the sealing gasket and the exhaust groove is ensured through the clamping connection of the sliding seat, the sealing gasket is prevented from being separated during injection molding, the exhaust hole of the sealing gasket is positioned in the gap of the lower die seat, the injection molding precision can be ensured, and the suitability of the processing requirements of an injection mold can be effectively met.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of an injection mold with high injection precision stability;
FIG. 2 is a schematic view of a part of a three-dimensional structure of an injection mold with high injection precision stability;
fig. 3 is a schematic diagram of a heat conduction seat of an injection mold with high injection precision stability in a three-dimensional structure;
fig. 4 is a schematic diagram of a three-dimensional split structure of an air extraction mechanism of an injection mold with high injection precision stability;
fig. 5 is a schematic diagram of a turnover three-dimensional structure of a lower die holder of an injection mold with high injection precision stability;
fig. 6 is a schematic diagram of a sheath perspective structure of an injection mold with high injection precision stability;
FIG. 7 is a schematic diagram of a three-dimensional structure of an exhaust slot of an injection mold with high injection precision stability;
FIG. 8 is a schematic diagram of a heat exchange seat of an injection mold with high injection precision stability;
fig. 9 is a schematic diagram of a heat exchange sleeve of an injection mold with high injection precision and stability.
Legend description:
1. a heat conduction seat; 2. a heat exchange base; 3. an upper die holder; 4. an air extraction mechanism; 401. an air pump; 402. an exhaust pipe; 403. an exhaust pipe; 404. a heat exchange sleeve; 405. a heat exchange column; 406. a sealing gasket; 407. an exhaust groove; 408. a slide block; 409. a slide; 5. a temperature control mechanism; 501. a cooling tank; 502. a heat exchange seat; 503. a circulation pipe; 504. a liquid pump; 505. a cold liquid pipe; 506. sealing sleeve; 507. a communicating pipe; 508. heat exchange fins; 6. a lower die mechanism; 601. a lower die holder; 602. a sheath; 603. a shaft sleeve; 604. a thermally conductive scroll; 605. a thermally conductive scroll; 606. a thermal pad; 7. a discharging mechanism; 701. a discharging thimble; 702. a connecting block; 703. a hinge block; 704. a pin shaft; 705. a connecting rod; 706. a spring; 707. a pull ring; 708. a fixing seat; 709. a hinge base; 710. a cam; 711. a rotating shaft; 712. a bearing; 713. a motor; 8. a liquid injection sleeve; 9. a positioning mechanism; 901. a positioning rod; 902. and (5) positioning the sleeve.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: the utility model provides an injection mold that injection accuracy stability is high, includes heat conduction seat 1, heat conduction seat 1 top fixedly connected with heat exchange base 2, heat exchange base 2 top cover is equipped with lower mould mechanism 6, and heat exchange base 2 top four corners department all is connected with upper die base 3 through positioning mechanism 9, and upper die base 3 top is equipped with annotates liquid cover 8, and lower mould mechanism 6 one side is equipped with air extraction mechanism 4, and heat conduction seat 1 bottom is equipped with temperature control mechanism 5, and lower die base 601 bottom one side transmission is connected with discharge mechanism 7.
The positioning mechanism 9 comprises a positioning rod 901, the positioning rod 901 is fixedly connected to one side of the bottom of the upper die holder 3, a positioning sleeve 902 is sleeved at the bottom of the positioning rod 901, the positioning sleeve 902 is embedded at the top of the heat conduction seat 1, the positioning sleeve 902 is communicated with the communicating pipe 507, the bottom of the positioning rod 901 is a conical surface, and the cross section of the inner cavity of the positioning sleeve 902 is of an inner hexagon shape.
The discharging mechanism 7 comprises a discharging thimble 701, the discharging thimble 701 is sleeved on one side of an inner cavity of the shaft sleeve 603, the bottom of the discharging thimble 701 is fixedly connected with a connecting block 702, the bottom of the connecting block 702 is fixedly connected with a hinge block 703, one side of the hinge block 703 is hinged with a connecting rod 705 through a pin shaft 704, the connecting rod 705 is hinged with a fixing seat 708 through the pin shaft 704, the fixing seat 708 is fixedly connected with one side of the heat exchange base 2, the heat exchange base 2 is fixedly connected with the bottom of the inner cavity of the lower die holder 601, the other end of the connecting rod 705 is hinged with a hinge seat 709 through the pin shaft 704, the bottom of the hinge seat 709 is attached with a cam 710, one side of the cam 710 is fixedly connected with a rotating shaft 711, the outer side wall of the rotating shaft 711 is sleeved with a bearing 712, the bearing 712 is embedded on one side of the lower die holder 601 and the heat exchange base 2, one end of the rotating shaft 711 is fixedly connected with a motor 713, the motor 713 is fixedly connected on one side of the heat exchange base 2 through a mounting plate, one end of the connecting rod 705 is close to the hinge block 703 and one side of the inner cavity of the lower die holder 601 is fixedly connected with a pull ring 707 through a spring 706, and the two sides of the pull ring are fixedly connected through springs 706.
The implementation mode specifically comprises the following steps: the mounting hole communicated through the upper die holder 3 can be conveniently connected with a hydraulic mechanism, the upper die holder 3 can be positioned and pressed downwards through the positioning mechanism 9, after the upper die holder 3 is attached to the lower die holder 601, liquid can be injected through the top liquid injection sleeve 8, after liquid injection is completed, the motor 713 can be operated through a switch control motor 713, the output shaft can be driven to rotate, the rotating shaft 711 is driven to rotate through rotation of the output shaft, the rotating shaft 711 rotates in the bearing 712 to drive one end of the one-side cam 710 to extrude the top hinging seat 709, the hinging seat 709 can be stressed to push the connecting rod 705 to rotate around the bottom fixing seat 708 and push the top hinging block 703 and the connecting block 702 to drive the ejection thimble 701 to move upwards through the pin shaft 704, the ejection thimble 701 moves upwards in the shaft sleeve 603 to move the injection molding piece cooled in the lower die holder 601, after the ejection of the injection molding piece is stressed upwards to be separated from the lower die holder 601, after the ejection of the die is finished, the cam 710 continues to rotate to drive one end of the shorter of the hinging seat 709, at the moment, the other end of the connecting rod 705 can be driven to move downwards through the spring 706, the connecting rod 705 can drive one end of the ejection thimble to move downwards, the ejection thimble 701 to reset downwards, the ejection thimble can be reset repeatedly, the ejection thimble can be reset and the ejection thimble can be required to be reset continuously, and the ejection of the ejection thimble can be prevented from being continuously and the ejection of injection process simultaneously in the injection process through the process.
The temperature control mechanism 5 comprises a cooling tank 501, a liquid pump 504 is fixedly arranged on one side of the cooling tank 501, the liquid pump 504 is communicated with the cooling tank 501 through a pipeline, one side of the cooling tank 501 is communicated with a heat conduction seat 1 through a liquid cooling pipe 505, a liquid outlet of the liquid pump 504 is communicated with the liquid cooling pipe 505, the liquid cooling pipe 505 is communicated with the heat conduction seat 1, a plurality of heat exchange seats 502 are fixedly connected in the cooling tank 501, diagonal positions between the connected heat exchange seats 502 are communicated through a circulating pipe 503, two sides of the circulating pipe 503 are respectively embedded on one side of the cooling tank 501, the circulating pipe 503 is communicated with an external heat return pipeline, four corners at the top of the heat conduction seat 1 are communicated with a positioning mechanism 9 through two communicating pipes 507, a groove is formed in one side of the heat exchange seat 502, a plurality of heat exchange fins 508 are fixedly connected with a groove, the heat exchange fins 508 and the heat exchange seat 502 are copper guide heat sheets, the lower die mechanism 6 comprises a lower die holder 601, a heat conduction spiral ring 604 is fixedly connected to the bottom of the lower die holder 601, the heat conduction spiral ring 605 is meshed with a heat conduction disc 605, the bottom of the spiral die seat 605 is fixedly connected with a heat conduction rod 605, the heat conduction rod is fixedly connected with the heat conduction disc is embedded in the inner cavity 603, the heat conduction rod is fixedly connected with the heat conduction seat 2, the heat conduction rod is fixedly sleeved with the heat conduction rod is fixedly connected with the heat conduction rod 601, the heat conduction rod is sleeved with the inner cavity 601, the heat conduction rod is fixedly connected with the heat pipe seat 2, and the heat conduction rod is fixedly sleeved with the heat pipe seat 601, and is fixedly connected with the heat-conducting rod is fixedly provided with the inner cavity 602, and is fixedly connected with the heat liner seat 602, and is fixedly connected with the heat-conducting sleeve 602.
The implementation mode specifically comprises the following steps: when producing high temperature pile up to die holder 601 and upper die holder 3 and continuously moulding plastics, the die holder 601 can be through the heat conduction pad 606 that the bottom cover was established with the heat quick leading-in one side heat conduction seat 1 in, the coolant liquid of heat conduction seat 1 inner chamber can be through one side drawing liquid pump 504 pump into cooling tank 501, and the electric heating rod in the cooling tank 501 can heat the coolant liquid and guarantee the operating condition stability at cold weather die holder 601, a plurality of heat transfer seats 502 in the cooling tank 501 can absorb the heat after the coolant liquid heat transfer in the cooling tank 501 through the water flow in one side circulating pipe 503, then can carry out conduction heat absorption to the high temperature that die holder 601 produced, and the die holder 601 can be through the cooperation of bottom heat conduction spiral ring 604 and bottom heat conduction disk 605 effectively improves the contact heat transfer area, then can guarantee the heat exchange efficiency when inside coolant liquid circulation, and after the coolant liquid that has absorbed the heat is led into cooling tank 501, and can guarantee that the coolant liquid in the cooling tank 501 can carry out heat exchange absorption and recycle through one side a plurality of heat transfer fins 508, and a plurality of heat transfer channels can be guaranteed that the heat in the cooling tank 501 can be with the heat transfer absorption heat, and a plurality of heat transfer channels can be guaranteed that the heat transfer efficiency is realized through the heat transfer pipe 502, and the heat transfer efficiency is improved, can be satisfied in the continuous mode is guaranteed that the heat absorption time is realized in the cooling tank 501, and the heat is realized through the heat pipe 502, the heat is continuous to the heat transfer surface is guaranteed and the heat transfer surface is guaranteed to the heat has high thermal insulation, and the heat can be produced in the cooling pipe and the cooling die 501, and the cooling die has high heat circulation and high heat circulation efficiency, and the heat has high thermal efficiency and high heat circulation efficiency, and the heat circulation efficiency and heat has guaranteed heat and heat in the cooling temperature and heat in the cooling 501 and heat.
The air extraction mechanism 4 comprises an air pump 401, an air outlet of the air pump 401 is communicated with an air outlet pipe, an air extraction opening of the air pump 401 is communicated with an air extraction pipe 402, the other side of the air extraction pipe 402 is communicated with a heat exchange sleeve 404, the heat exchange sleeve 404 is sleeved outside the temperature control mechanism 5, an inner cavity of the heat exchange sleeve 404 is fixedly connected with a plurality of heat exchange columns 405, the top of the heat exchange sleeve 404 is communicated with an exhaust pipe 403, one end of the exhaust pipe 403 is communicated with an exhaust slot 407, the exhaust slot 407 is embedded in one side of the lower die mechanism 6, two sides of the inner cavity of the exhaust slot 407 are fixedly connected with a sliding block 408, sliding blocks 409 are slidably connected in the sliding blocks 408, sealing gaskets 406 are fixedly connected between the sliding blocks 409 on two sides and are attached to the exhaust slot 407 on one side, the sealing gaskets 406 are elastic plastic gaskets, and openings are formed in one sides of the sealing gaskets 406 and the exhaust slot 407.
The implementation mode specifically comprises the following steps: after injection molding product ejection of compact, circulation pipe 503 one end is in the low temperature state through circulating with heat emission, can be through one side air pump 401 through exhaust tube 402 from heat exchange sleeve 404 in this moment, heat exchange sleeve 404 can be through one side blast pipe 403 from exhaust groove 407 to the inner chamber of die holder 601 bleed, the hot air of die holder 601 inner chamber can contact heat transfer cooling to cold liquid pipe 505 of low temperature state through bottom heat exchange sleeve 404, and discharge through air pump 401 one side exhaust line, heat exchange column 405 in the heat exchange sleeve 404 intermediate layer can guarantee the thermal contact heat transfer area, then can guarantee the absorption backward flow effect to exhaust heat, then can avoid the scald harm that hot air directly discharges and bring for station operating personnel, and can carry out backward flow heat transfer through cold liquid pipe 505, then can effectively guarantee the space cleanliness of moulding plastics in the heat exchange base 2, further improve the long-pending material harm that continuous operation brought, the injection molding precision when improving continuous processing, effectively satisfy the processing suitability.
Working principle: when the injection molding machine is used, the installation hole communicated through the upper die holder 3 can be conveniently connected with a hydraulic mechanism, the upper die holder 3 can be positioned and pressed downwards through the positioning mechanism 9, after the upper die holder 3 is attached to the lower die holder 601, liquid can be injected through the top liquid injection sleeve 8, after liquid injection is completed, the motor 713 can be controlled to work through a switch, the motor 713 can drive the output shaft to rotate, the output shaft rotates to drive the rotating shaft 711 to rotate, the rotating shaft 711 rotates in the bearing 712 to drive one side of the cam 710 to extrude the top hinging seat 709, the hinging seat 709 can bear force to push the connecting rod 705 to rotate around the bottom fixing seat 708 upwards through the pin shaft 704 and pull the connecting rod 705 to rotate around the pin shaft 704 to push the top hinging block 703 and the connecting block 702 to drive the ejection thimble 701 to move upwards, the ejection thimble 701 moves upwards in the shaft sleeve 603 to push the injection molding part cooled in the lower die holder 601 upwards, the injection molding part is stressed to be separated from the lower die holder 601 to be taken off, after the demolding is finished, the cam 710 continues to rotate to drive one shorter end of the connecting rod 705 to attach to the hinging seat 709, at the moment, the other end of the connecting rod 705 can drive the connecting rod 705 to move downwards through the spring 706, and the connecting rod 705 to drive one end to hinge the ejection thimble 701 to move downwards to reset downwards.
When the lower die holder 601 and the upper die holder 3 are continuously injection-molded to generate high-temperature accumulation, the lower die holder 601 can quickly guide heat into the one-side heat conduction seat 1 through the heat conduction pad 606 sleeved at the bottom, cooling liquid in the inner cavity of the heat conduction seat 1 can be pumped into the cooling tank 501 through the one-side liquid pumping pump 504, an electric heating rod in the cooling tank 501 can heat the cooling liquid, a plurality of heat exchange seats 502 in the cooling tank 501 can absorb heat after the cooling liquid in the cooling tank 501 exchanges heat through the water circulation pipe 503, after the cooling liquid absorbing the heat is guided into the cooling tank 501, the water circulating in the circulation pipe 503 can absorb and reuse the heat in the cooling tank 501, diagonal corners among the plurality of heat exchange seats 502 are communicated through the circulation pipe 503, and the heat accumulation in the lower die holder 601 is avoided.
After the injection molding product is discharged, one end of the circulation pipe 503 distributes heat to be in a low-temperature state through circulation, at the moment, the heat can be pumped from the heat exchange sleeve 404 through the pumping pipe 402 by the air pump 401 on one side, the heat exchange sleeve 404 can pump air from the exhaust groove 407 to the inner cavity of the lower die holder 601 through the exhaust pipe 403 on one side, hot air in the inner cavity of the lower die holder 601 can conduct contact heat exchange and cooling to the cold liquid pipe 505 in the low-temperature state through the bottom heat exchange sleeve 404, and the hot air is discharged through a discharge pipeline on one side of the air pump 401.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides an injection mold that injection accuracy stability is high, includes heat conduction seat (1), a serial communication port, heat conduction seat (1) top fixedly connected with heat transfer base (2), heat transfer base (2) top cover is equipped with lower mould mechanism (6), and heat transfer base (2) top four corners department all is connected with upper die base (3) through positioning mechanism (9), and upper die base (3) top is equipped with annotates liquid cover (8), and lower mould mechanism (6) one side is equipped with bleed mechanism (4), and heat conduction seat (1) bottom is equipped with temperature control mechanism (5), and die holder (601) bottom one side transmission is connected with discharge mechanism (7), discharge mechanism (7) are including ejection of compact thimble (701), and ejection of compact thimble (701) cover is located axle sleeve (603) inner chamber one side, and ejection of compact (701) bottom fixedly connected with connecting block (702), and connecting block (702) bottom fixedly connected with hinge block (703), and hinge block (704) one side is articulated through round pin axle (704) have connecting rod (705), and connecting rod (705) are articulated through round pin axle (704), base (708) fixedly connected with discharge mechanism (7) in heat transfer base (2) bottom one side at the bottom of heat transfer base (601), and the other end of the connecting rod (705) is hinged with a hinging seat (709) through a pin shaft (704), the bottom of the hinging seat (709) is attached with a cam (710), one side of the cam (710) is fixedly connected with a rotating shaft (711), the outer side wall of the rotating shaft (711) is sleeved with a bearing (712), the bearing (712) is embedded on one side of the lower die holder (601) and the heat exchange base (2), one end of the rotating shaft (711) is fixedly connected with a motor (713), the motor (713) is fixedly connected on one side of the heat exchange base (2) through a mounting plate, one end of the connecting rod (705) close to the hinging block (703) and one side of the inner cavity of the lower die holder (601) are fixedly connected with a pull ring (707), and the pull rings (707) on two sides are fixedly connected through springs (706), the air extraction mechanism (4) comprises an air pump (401), an air outlet pipe is communicated with an air outlet of the air pump (401), an air extraction opening of the air pump (401) is communicated with an air extraction pipe (402), the other side of the air extraction pipe (402) is communicated with a heat exchange sleeve (404), the heat exchange sleeve (404) is sleeved outside the temperature control mechanism (5), a plurality of heat exchange columns (405) are fixedly connected in an inner cavity of the heat exchange sleeve (404), the top of the heat exchange sleeve (404) is communicated with an exhaust pipe (403), one end of the exhaust pipe (403) is communicated with an exhaust groove (407), and the exhaust groove (407) is embedded on one side of the lower die mechanism (6), the two sides of the inner cavity of the exhaust groove (407) are fixedly connected with the sliding block (408), the sliding block (408) is internally and slidably connected with the sliding seat (409), the sealing gasket (406) is fixedly connected with the sealing gasket (406) between the sliding seat (409) on two sides, the sealing gasket (406) is attached to the exhaust groove (407) on one side, the sealing gasket (406) and one side of the exhaust groove (407) are respectively provided with an opening, the temperature control mechanism (5) comprises a cooling groove (501), a liquid suction pump (504) is fixedly arranged on one side of the cooling groove (501), the liquid suction pump (504) is communicated with the cooling groove (501) through a pipeline, one side of the cooling groove (501) is communicated with the heat conducting seat (1) through a cold liquid pipe (505), the liquid suction pump (504) is communicated with the cold liquid pipe (505), the cooling groove (505) is fixedly connected with a plurality of heat exchange seats (502) in the cooling groove (501), the two sides of the circulating pipe (503) are respectively communicated with the cooling groove (503) through the two sides of the circulating pipe (503), four corners of the top of the heat conduction seat (1) are communicated with the positioning mechanism (9) through two communicating pipes (507).
2. The injection mold with high injection precision stability according to claim 1, wherein a groove is formed on one side of the heat exchange seat (502), a plurality of heat exchange fins (508) are fixedly connected to the inner cavity of the groove, and the heat exchange fins (508) and the heat exchange seat (502) are copper heat conduction plates.
3. The injection mold with high injection precision stability according to claim 2, wherein the lower mold mechanism (6) comprises a lower mold base (601), a heat-conducting worm ring (604) is fixedly connected to the bottom of the lower mold base (601), a heat-conducting worm disc (605) is meshed to the bottom of the heat-conducting worm ring (604), the heat-conducting worm disc (605) is fixedly connected to the bottom of an inner cavity of the heat exchange base (2), a heat-conducting pad (606) is fixedly connected to the inner cavity of the heat exchange base (2), the heat-conducting pad (606) is sleeved with the lower mold base (601), a shaft sleeve (603) is embedded in the inner cavity of the lower mold base (601), a discharging mechanism (7) is sleeved in the shaft sleeve (603), and a sheath (602) is fixedly connected to the top of the lower mold base (601).
4. The injection mold with high injection precision stability according to claim 3, wherein the positioning mechanism (9) comprises a positioning rod (901), the positioning rod (901) is fixedly connected to one side of the bottom of the upper mold base (3), a positioning sleeve (902) is sleeved at the bottom of the positioning rod (901), the positioning sleeve (902) is embedded at the top of the heat conducting seat (1), and the positioning sleeve (902) is communicated with the communicating pipe (507).
5. The injection mold with high injection precision stability according to claim 4, wherein the bottom of the positioning rod (901) is a conical surface, and the cross section of the inner cavity of the positioning sleeve (902) is an inner hexagon.
6. The injection mold with high injection precision stability according to claim 5, wherein the inner cavity of the cooling groove (501) is fixedly connected with an electric heating rod.
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| CN202210054911.7A CN114750378B (en) | 2022-01-18 | 2022-01-18 | Injection mold with high injection precision stability |
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| CN202210054911.7A CN114750378B (en) | 2022-01-18 | 2022-01-18 | Injection mold with high injection precision stability |
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| CN114750378B true CN114750378B (en) | 2023-07-14 |
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| CN209920469U (en) * | 2019-01-31 | 2020-01-10 | 厦门鑫德来工贸有限公司 | Precision parts injection moulding device |
| WO2020243375A1 (en) * | 2019-05-31 | 2020-12-03 | Limworks, Llc | Injection molding machine |
| CN212372574U (en) * | 2020-01-14 | 2021-01-19 | 张双垒 | Rapid prototyping's plastic mold |
| CN213260901U (en) * | 2021-03-24 | 2021-05-25 | 辽阳百乐保健品有限公司 | Injection mold convenient to drawing of patterns |
| CN215151496U (en) * | 2021-07-08 | 2021-12-14 | 深圳市杰高精密模具有限公司 | But injection mold of fast demoulding |
| CN215396710U (en) * | 2021-08-10 | 2022-01-04 | 青岛金雍电镀有限公司 | Cooling body of cell-phone accessory production and processing usefulness |
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Effective date of registration: 20230621 Address after: 318020 No. 12, Nangong Road, Shabu Town, Huangyan District, Taizhou City, Zhejiang Province Applicant after: ZHEJIANG HUANGYAN NANDA PLASTIC MOULD Co.,Ltd. Address before: 316000 No.9, dameishan North Road, Yangshan Town, Shengsi County, Zhoushan City, Zhejiang Province Applicant before: Xu Hu |
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Denomination of invention: An injection mold with high precision and stability in injection molding Granted publication date: 20230714 Pledgee: Industrial Commercial Bank of China Ltd. Taizhou Huangyan branch Pledgor: ZHEJIANG HUANGYAN NANDA PLASTIC MOULD Co.,Ltd. Registration number: Y2024330000703 |
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