CN114055725A - Plastic mold with low-temperature early warning function and adopting hot runner technology - Google Patents
Plastic mold with low-temperature early warning function and adopting hot runner technology Download PDFInfo
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- CN114055725A CN114055725A CN202111358387.4A CN202111358387A CN114055725A CN 114055725 A CN114055725 A CN 114055725A CN 202111358387 A CN202111358387 A CN 202111358387A CN 114055725 A CN114055725 A CN 114055725A
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- hot runner
- seat
- pressure regulating
- outer side
- plastic mold
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- 239000004033 plastic Substances 0.000 title claims abstract description 65
- 229920003023 plastic Polymers 0.000 title claims abstract description 65
- 238000005516 engineering process Methods 0.000 title claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 64
- 238000001746 injection moulding Methods 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims description 42
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 238000006073 displacement reaction Methods 0.000 claims description 19
- 238000009423 ventilation Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 13
- 229920001169 thermoplastic Polymers 0.000 abstract description 12
- 239000004416 thermosoftening plastic Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 5
- 238000005491 wire drawing Methods 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 description 14
- 230000001965 increasing effect Effects 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000005574 cross-species transmission Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003466 welding Methods 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
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2701—Details not specific to hot or cold runner channels
- B29C45/2703—Means for controlling the runner flow, e.g. runner switches, adjustable runners or gates
- B29C45/2704—Controlling the filling rates or the filling times of two or more mould cavities by controlling the cross section or the length of the runners or the gates
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/2737—Heating or cooling means therefor
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
-
- 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
- B29C45/43—Removing or ejecting moulded articles using fluid under pressure
-
- 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
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
-
- 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
- B29C45/76—Measuring, controlling or regulating
- B29C45/82—Hydraulic or pneumatic circuits
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a plastic mould with low-temperature early warning and adopting a hot runner technology, which relates to the technical field of plastic moulds and comprises a workbench, a pressure regulating assembly and an upper mould base, wherein a lifting table is arranged on the outer side of the bottom of the workbench, an injection molding opening is formed in the middle end of the top of the lifting table, and a communicating pipe is arranged at the tail end of the inner side of the injection molding opening. The invention can drive the sealing seat to rotate together when the sliding seat slides, and the injection molding hole and the cutting hole can be staggered in the rotating process of the sealing seat, so that the cutting hole can cut off and separate the formed module and the thermoplastic in the hot runner, thereby avoiding the phenomenon that the thermoplastic is attached to the formed part to generate wire drawing in the material taking process.
Description
Technical Field
The invention relates to the technical field of plastic molds, in particular to a plastic mold with low-temperature early warning and adopting a hot runner technology.
Background
The plastic mould is a short-name for a combined mould for compression moulding, extrusion moulding, injection, blow moulding and low-foaming moulding, a series of plastic parts with different shapes and sizes can be processed by the coordinated change of a mould convex mould, a mould concave mould and an auxiliary moulding system, while a hot runner is a heating component system used in an injection mould and used for injecting melted plastic particles into a mould cavity of the mould, and the hot runner mould is a brand-new structure which heats a runner and a runner of a traditional mould or a three-plate mould and does not need to take out the runner and the runner during each moulding.
Common hot runner plastic mould produces the wire drawing in order to prevent that fashioned module from producing with the hot plastic separation in the hot runner on the market, can use the needle valve hot runner to block thermoplastic and module usually, but the needle valve need settle inside the hot runner to need use and carry out reciprocating motion through the cylinder, if the processing material is comparatively thick plastics, the needle body makes the hot runner take place to block up easily, produce the influence to the moulding plastics of hot runner, needle valve hot runner cost is expensive in addition, and damage easily, this normal production to plastic mould produces the influence easily.
Disclosure of Invention
The invention aims to provide a plastic mould with low-temperature early warning and adopting a hot runner technology, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the plastic mold with low-temperature early warning and adopting the hot runner technology comprises a workbench, a pressure regulating assembly and an upper mold base, wherein a lifting platform is arranged on the outer side of the bottom of the workbench, an injection molding port is formed in the middle end of the top of the lifting platform, a communicating pipe is arranged at the tail end of the inner side of the injection molding port, a pressurizing seat is arranged at the outer end of the communicating pipe, pressurizing pipes are connected to two sides of the outside of the pressurizing seat, the pressure regulating assembly is arranged on two sides of the inside of the pressurizing seat, the hot runner assembly is connected to the tail end of the bottom of the communicating pipe, a heat regulating box is arranged at the outer end of the hot runner assembly, heaters are arranged on two sides of the outside of the hot runner assembly, the upper mold base is arranged on the outer side of the bottom of the hot runner assembly and comprises an upper mold plate, injection molding holes and sliding grooves, the injection molding holes are formed in the outer side of the top of the upper mold plate, and the sliding grooves are formed in two sides of the outer end of the upper mold plate, the inboard of upper die base is provided with seal assembly, seal assembly includes the seal receptacle, cuts off hole, sliding seat and first vent, the hole has been seted up and has been cut off in the top outside of seal receptacle, and the outside both sides of seal receptacle are connected with the sliding seat, first vent has been seted up in the top outside of sliding seat, settle the inside both sides of elevating platform has the motor, and the bottom outside of motor is provided with the rotor plate, settle the outside both sides of elevating platform has the fixed plate, and the bottom outside of fixed plate settles and have first cylinder, the bottom of first cylinder is provided with the fixed station.
Preferably, the vertical central line of the lifting platform and the vertical central line of the injection molding port are overlapped, and the injection molding port is communicated with the communicating pipe.
Preferably, the pressure regulating subassembly includes pressure regulating pipe, resettlement groove, electromagnetism post, spring holder and pressure regulating ball, the resettlement groove has been seted up to the inboard surface of pressure regulating pipe, and the inboard middle-end of pressure regulating pipe is connected with the electromagnetism post, the outside surface of electromagnetism post is provided with the spring holder, and the top of spring holder settles and have the pressure regulating ball.
Preferably, the size of the pressure regulating ball is similar to that of the placement groove, and the pressure regulating ball is elastically connected with the spring seat.
Preferably, hot runner assembly includes heating cabinet, reposition of redundant personnel chamber and shunt tubes, the bottom outside of heating cabinet is provided with the reposition of redundant personnel chamber, and the bottom outside in reposition of redundant personnel chamber is connected with the shunt tubes.
Preferably, the shunt cavity is communicated with the shunt tubes, and the number of the shunt tubes is three.
Preferably, the size, shape and position of the injection molding hole are consistent with those of the cutting hole, and the injection molding hole is in sleeved connection with the shunt pipe.
Preferably, the sealing seat and the sliding seat are integrated, and the sliding seat is connected with the sliding groove in a sliding manner.
Preferably, the inside both sides of fixed station are provided with the second cylinder, and the top outside of second cylinder is connected with the push pedal, the bottom outside of push pedal is provided with the displacement plate, and the second ventilation opening has been seted up to the bottom both sides of displacement plate, the top outside of displacement plate is provided with the shaping seat, the rear portion outside arrangement of fixed station has the fan.
Preferably, the forming seat and the displacement plate are integrated, and the displacement plate and the push plate are in welded connection.
The invention provides a plastic mould with low-temperature early warning and adopting a hot runner technology, which has the following beneficial effects: after the pressure regulating ball sensed magnetic force, the pressure regulating ball can be moved out from the inner side of the arranging groove, and the extrusion spring seat moves to one side of the electromagnetic column, so that the inner diameter of the pressure regulating pipe can be changed, thereby the pressure transmitted by the pressure regulating pipe can be changed, the thermoplastic module with the cutting hole separated is used to block the thermoplastic module and the module compared with the traditional needle valve hot runner, the condition that the equipment cannot normally work due to the fact that the needle valve blocks the hot runner can be effectively avoided, meanwhile, the assembly component is separated, and the assembly component is easier to repair compared with the situation that the needle valve buried in the hot runner is more difficult to damage.
1. According to the invention, the electromagnetic column on the inner side of the pressure regulating pipe can generate suction when working, the pressure regulating ball is made of metal materials, and can move out of the inner side of the placing groove after the pressure regulating ball senses magnetic force and extrude the spring seat to move towards one side of the electromagnetic column, so that the inner diameter of the pressure regulating pipe can be changed, the pressure transmitted by the pressure regulating pipe can be changed, the waste caused by excessive overflow in the extrusion process of molten plastic due to overlarge transmission pressure can be avoided, the magnetic force of the electromagnetic column can be changed through the current, and the pressure regulation of equipment can be activated flexibly. .
2. The heaters on the two sides of the outside of the heating box have a temperature measuring function, the heaters can detect the temperature in the heating box before the injection molding machine performs injection molding, if the temperature of the heating box is too low, the device can send out an early warning signal and prevent the injection molding machine from injecting molten plastic into an injection molding port, so that the plastic can be prevented from entering the inner side of the heating box to be solidified, and in addition, when the temperature is too low, the electric heating wires in the heating box can generate heat and conduct the heat to the inner side of the heating box, so that the temperature in the heating box can be increased, and the molten plastic can not be solidified when being stored in the heating box.
3. The invention can drive the fixed plate to rotate by the motor, the fixed plate can be attached to the sliding seat in the rotating process, the sliding seat can slide on the inner side of the sliding groove, the sealing seat can be driven to rotate together when the sliding seat slides, the injection molding holes and the cutting holes can be staggered in the rotating process of the sealing seat, the formed module and the thermoplastic in the hot runner can be cut and separated by the cutting holes, and the phenomenon that the hot runner is attached to the formed part to generate wire drawing in the material taking process is avoided.
4. The inner side of the sealing seat is hollow, air can enter the inner side of the sealing seat and is discharged from the first vent at the other side by injecting air into the first vent, the temperature of the sealing seat can be reduced by the flowing of high-speed air, the cooling speed of a formed part can be accelerated, the displacement plate and the forming seat are integrated, the inner side of the forming seat is also hollow, the forming seat can be cooled by injecting air into the inner side of the second vent, and the formed part can be further cooled rapidly, so that the forming time of a single part can be greatly saved.
5. According to the invention, after the part is formed, the first cylinder works to drive the fixing plate to move upwards, so that the sealing component can be separated from the formed part, and the second cylinder works to drive the push plate to move downwards, so that the forming seat can be separated from the formed part, at the moment, the fan at the rear part of the fixing table works to blow out high-speed airflow to the front part of the fixing table, so that the formed part can be blown to the front part of the fixing table through the high-speed airflow to complete discharging, and the discharging convenience of the equipment can be improved.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a plastic mold with low temperature early warning and hot runner technology according to the present invention;
FIG. 2 is a schematic structural diagram of a pressure regulating assembly of the plastic mold with low temperature early warning and hot runner technology according to the present invention;
FIG. 3 is an enlarged schematic view of the position A of the plastic mold with low temperature pre-warning and hot runner technology in FIG. 1;
FIG. 4 is a schematic perspective view of an upper mold base of the plastic mold with low temperature pre-warning and hot runner technology according to the present invention;
fig. 5 is a schematic top view of the upper mold base of the plastic mold with low temperature pre-warning and hot runner technology according to the present invention.
In the figure: 1. a work table; 2. a lifting platform; 3. an injection molding port; 4. a communicating pipe; 5. a pressurizing seat; 6. a pressure increasing pipe; 7. a voltage regulating component; 701. a pressure regulating pipe; 702. a placing groove; 703. an electromagnetic column; 704. a spring seat; 705. a pressure regulating ball; 8. a hot runner assembly; 801. a heating box; 802. a shunting cavity; 803. a shunt tube; 9. a heat regulating box; 10. a heater; 11. an upper die holder; 1101. mounting a template; 1102. injection molding holes; 1103. a sliding groove; 12. a seal assembly; 1201. a sealing seat; 1202. cutting off the hole; 1203. a sliding seat; 1204. a first vent; 13. a motor; 14. a rotating plate; 15. a fixing plate; 16. a first cylinder; 17. a fixed table; 18. a second cylinder; 19. pushing the plate; 20. a displacement plate; 21. a second vent; 22. forming a base; 23. a fan.
Detailed Description
Referring to fig. 1-5, the present invention provides the following technical solutions: the plastic mold with low-temperature early warning and adopting the hot runner technology comprises a workbench 1, a pressure regulating assembly 7 and an upper mold base 11, wherein the outer side of the bottom of the workbench 1 is provided with a lifting platform 2, the middle end of the top of the lifting platform 2 is provided with an injection port 3, the tail end of the inner side of the injection port 3 is provided with a communicating pipe 4, the outer end of the communicating pipe 4 is provided with a pressure increasing seat 5, the two outer sides of the pressure increasing seat 5 are connected with pressure increasing pipes 6, the pressure regulating assembly 7 is arranged on the two inner sides of the pressure increasing seat 5, the tail end of the bottom of the communicating pipe 4 is connected with a hot runner assembly 8, the outer end of the hot runner assembly 8 is provided with a heat regulating box 9, the two outer sides of the hot runner assembly 8 are provided with heaters 10, the upper mold base 11 is arranged on the outer side of the bottom of the hot runner assembly 8, the upper mold base 11 comprises an upper mold plate 1101, injection holes 1102 and a sliding groove 1103, the outer side of the upper mold plate 1101 is provided with an injection hole 1102, and a sliding groove 1103, the inner side of the upper die holder 11 is provided with a sealing assembly 12, the sealing assembly 12 comprises a sealing seat 1201, a cutting hole 1202, a sliding seat 1203 and a first ventilation opening 1204, the cutting hole 1202 is formed in the outer side of the top of the sealing seat 1201, the sliding seat 1203 is connected to two outer sides of the sealing seat 1201, the first ventilation opening 1204 is formed in the outer side of the top of the sliding seat 1203, the motor 13 is arranged on two inner sides of the lifting table 2, the rotating plate 14 is arranged on the outer side of the bottom of the motor 13, the fixing plate 15 is arranged on two outer sides of the lifting table 2, the first cylinder 16 is arranged on the outer side of the bottom of the fixing plate 15, and the fixing table 17 is arranged at the bottom of the first cylinder 16.
Referring to fig. 1 and 2, a vertical center line of the lifting table 2 coincides with a vertical center line of the injection port 3, the injection port 3 is communicated with the communicating pipe 4, the pressure regulating assembly 7 includes a pressure regulating pipe 701, a placement groove 702, an electromagnetic column 703, a spring seat 704 and a pressure regulating ball 705, the placement groove 702 is formed on the inner side surface of the pressure regulating pipe 701, the electromagnetic column 703 is connected to the inner side middle end of the pressure regulating pipe 701, the spring seat 704 is arranged on the outer side surface of the electromagnetic column 703, the pressure regulating ball 705 is arranged at the top end of the spring seat 704, the size of the pressure regulating ball 705 is similar to that of the placement groove 702, and the pressure regulating ball 705 is elastically connected with the spring seat 704;
the operation is as follows, the injection molding machine outside the device works, molten plastic can be injected into the injection port 3 at the top of the workbench 1, after the molten plastic enters the injection port 3, the molten plastic can flow into the inner side of the communicating pipe 4 to be transported, when the communicating pipe 4 transports plastic with higher viscosity or the flow rate of the plastic is slower, the pressurizing pipes 6 at the two sides of the outside of the pressurizing base 5 can input high-pressure air to the pressurizing base 5, the high-pressure air can enter the inner side of the pressure regulating pipe 701 through the pressurizing pipes 6, the pressure regulating pipe 701 is communicated with the communicating pipe 4, the high-pressure air can enter the inner side of the communicating pipe 4, thereby the flow rate of the molten plastic in the communicating pipe 4 can be accelerated, the condition that the flow rate is too slow to condense in the communicating pipe 4 to cause the blockage of the communicating pipe 4 is avoided, at the moment, the electromagnetic column 703 at the inner side of the pressure regulating pipe 701 can work to generate suction, the pressure regulating ball 705 is made of metal, when the pressure regulating ball senses the magnetic force, can follow the inboard removal of resettlement groove 702 to push away spring holder 704 and move to electromagnetism post 703 one side, this makes the internal diameter of pressure regulating pipe 701 change, thereby enables the pressure that pressure regulating pipe 701 transmitted and takes place the change, and this can avoid transmission pressure too big to lead to melting plastics to extrude the in-process and spill over too much and cause the waste, and the magnetic force accessible electric current size of electromagnetism post 703 changes, and this makes the pressure regulating of equipment can nimble activation.
Referring to fig. 1, 3, 4 and 5, the hot runner assembly 8 includes a heating box 801, a shunt cavity 802 and shunt tubes 803, the shunt cavity 802 is disposed on the outer side of the bottom of the heating box 801, the shunt tubes 803 are connected to the outer side of the bottom of the shunt cavity 802, the shunt cavity 802 is communicated with the shunt tubes 803, the shunt tubes 803 are totally three, the size, shape and position of an injection molding hole 1102 are consistent with those of a cutting hole 1202, the injection molding hole 1102 is in sleeved connection with the shunt tubes 803, the sealing seat 1201 is integrated with the sliding seat 1203, and the sliding seat 1203 is in sliding connection with the sliding groove 1103;
the operation is as follows, the melting plastic flowing out from the communicating pipe 4 can enter the inner side of the heating box 801, the heater 10 on the two sides of the outer part of the heating box 801 has the temperature measuring function, before the injection molding machine performs the injection molding, the heater 10 can detect the temperature in the heating box 801, if the temperature of the heating box 801 is too low, the device can send out the early warning signal and prevent the injection molding machine from injecting the melting plastic into the injection port 3, which can avoid the plastic from entering the inner side of the heating box 801 to solidify, and in addition, when the temperature is too low, the heating wire in the heating box 801 can generate heat and conduct the heat to the inner side of the heating box 801, which can make the temperature in the heating box 801 rise, thereby ensuring that the melting plastic can not solidify when stored in the heating box 801, in addition, the inner side of the heat adjusting box 9 is provided with the hollow layer, which can improve the heat preservation effect of the heating box 801, after the lifting platform 2 moves down and is jointed with the fixing platform 17, the sealing assembly 12 can be overlapped with the forming seat 22, a mold cavity can be formed by a gap between the sealing assembly 12 and the forming seat 22, the flow dividing cavity 802 at the bottom of the heating box 801 can divide the molten plastic inside the heating box 801 to uniformly flow into the three flow dividing pipes 803, the flow dividing pipes 803 are communicated with the injection molding holes 1102 at the top of the upper mold plate 1101, and the injection molding holes 1102 are overlapped with the cutting holes 1202, so that the molten plastic can be injected into the inner side of the sealing seat 1201 and flow into a gap between the sealing assembly 12 and the forming seat 22, after the injection molding is finished, the motor 13 works to drive the fixing plate 15 to rotate, the fixing plate 15 is attached to the sliding seat 1203 in the rotating process, the sliding seat 1203 can slide inside the sliding groove, the sliding seat 1103 can drive the sealing seat 1201 to rotate together, and the sealing seat 1201 rotates in the rotating process, the injection molding holes 1102 and the cutting holes 1202 can be staggered, so that the cutting holes 1202 can cut off and separate molded modules from thermoplastic in a hot runner, drawing caused by the fact that the thermoplastic is attached to a molded part in the material taking process is avoided, in addition, compared with the traditional needle valve hot runner, the thermoplastic and the modules are blocked by separating the thermoplastic modules through the cutting holes 1202, the situation that equipment cannot normally work due to the fact that a needle valve blocks the hot runner can be effectively avoided, meanwhile, the assembly component is separated, and compared with the needle valve buried in the hot runner, the needle valve is not prone to damage and is easy to maintain.
Referring to fig. 1, two sides of the inside of a fixed table 17 are provided with second cylinders 18, the outer side of the top of each second cylinder 18 is connected with a push plate 19, the outer side of the bottom of each push plate 19 is provided with a displacement plate 20, two sides of the bottom of each displacement plate 20 are provided with second ventilation openings 21, the outer side of the top of each displacement plate 20 is provided with a forming seat 22, the outer side of the rear part of the fixed table 17 is provided with a fan 23, the forming seats 22 and the displacement plates 20 are integrated, the displacement plates 20 and the push plates 19 are connected in a welding manner, and the inner sides of sealing seats 1201 are hollow;
after the injection molding is finished, air can enter the inner side of the sealing seat 1201 and is exhausted from the first vent 1204 at the other side by injecting air into the first vent 1204, the temperature of the sealing seat 1201 can be reduced by the flowing of high-speed air, so that the cooling speed of the molded part can be accelerated, the displacement plate 20 and the molding seat 22 are integrated, the inner side of the molding seat 22 is hollow, the molding seat 22 can be cooled by injecting air into the inner side of the second vent 21, so that the molded part can be further accelerated to cool, so that the molding time of a single part can be greatly saved, the processing speed of the equipment can be increased, after the molded part is finished, the first air cylinder 16 can drive the fixing plate 15 to move upwards by operating, so that the sealing component 12 can be separated from the molded part and operate by operating the second air cylinder 18, can drive push pedal 19 and move down, this makes the one-tenth shape seat 22 can separate with the formed part, and fan 23 through fixed station 17 rear portion this moment carries out work, can blow out high-speed air current to fixed station 17 front portion, and this can make the formed part blow through high-speed air current to the anterior ejection of compact of accomplishing of fixed station 17, and this can lifting means's ejection of compact convenience.
In summary, when the plastic mold with low temperature warning and adopting hot runner technology is used, firstly, the first cylinder 16 works to enable the fixing plate 15 to drive the lifting platform 2 to move downwards to be attached to the fixing platform 17, so that the sealing component 12 can be overlapped with the molding base 22, and a gap between the sealing component 12 and the molding base 22 can form a mold cavity;
then, the injection molding machine outside the device works, molten plastic can be injected into the injection port 3 at the top of the workbench 1, the molten plastic can flow into the inner side of the communicating pipe 4 to be transported after entering the inner side of the injection port 3, the communicating pipe 4 transports plastic with higher viscosity or the plastic has lower flow velocity, the pressurizing pipes 6 at the two sides of the outside of the pressurizing seat 5 can input high-pressure air to the pressurizing seat 5, the high-pressure air can enter the inner side of the pressure regulating pipe 701 through the pressurizing pipes 6, the pressure regulating pipe 701 is communicated with the communicating pipe 4, so that the high-pressure air can enter the inner side of the communicating pipe 4, the flow velocity of the molten plastic in the communicating pipe 4 can be accelerated, and the phenomenon that the communicating pipe 4 is blocked due to the over-low flow velocity of the molten plastic in the communicating pipe 4 is avoided;
then the electromagnetic column 703 on the inner side of the pressure regulating pipe 701 works to generate suction force, the pressure regulating ball 705 is made of metal materials, and can move out of the inner side of the placing groove 702 after the pressure regulating ball 705 senses magnetic force, and the pressing spring seat 704 moves towards one side of the electromagnetic column 703, so that the inner diameter of the pressure regulating pipe 701 can be changed, the pressure transmitted by the pressure regulating pipe 701 can be changed, waste caused by excessive overflow in the extrusion process of molten plastic due to overlarge transmission pressure can be avoided, the magnetic force of the electromagnetic column 703 can be changed through the magnitude of current, and the pressure regulation of equipment can be activated flexibly;
the molten plastic flowing out of the communicating pipe 4 can enter the inner side of the heating box 801, the heaters 10 on the two sides of the outer portion of the heating box 801 have a temperature measuring function, before the injection molding machine performs injection molding, the heaters 10 can detect the temperature in the heating box 801, if the temperature of the heating box 801 is too low, the device can send an early warning signal and prevent the injection molding machine from injecting the molten plastic into the injection port 3, the plastic can be prevented from entering the inner side of the heating box 801 to be solidified, in addition, when the temperature is too low, heating wires in the heating box 801 can generate heat and conduct the heat to the inner side of the heating box 801, so that the temperature in the heating box 801 can be increased, the molten plastic is prevented from being solidified when being stored in the heating box 801, in addition, a hollow layer is arranged on the inner side of the heat regulating box 9, and the heat insulation effect of the heating box 801 can be improved;
then the flow dividing cavity 802 at the bottom of the heating box 801 can divide the molten plastic inside the heating box 801 to make the molten plastic flow into the three flow dividing pipes 803 uniformly, the flow dividing pipes 803 are communicated with the injection molding holes 1102 at the top of the upper template 1101, and the injection molding holes 1102 are overlapped with the cutting holes 1202, so that the molten plastic can be injected into the inner side of the sealing seat 1201 and flow into the gap between the sealing component 12 and the forming seat 22, after the injection molding is completed, the motor 13 can drive the fixing plate 15 to rotate, the fixing plate 15 can be attached to the sliding seat 1203 in the rotating process, so that the sliding seat 1203 can slide in the sliding groove 1103, the sliding seat 1203 can drive the sealing seat 1201 to rotate together when sliding, the injection molding holes 1102 and the cutting holes 1202 can be staggered in the rotating process of the sealing seat 1201, so that the cutting holes 1202 can separate the molded module from the thermoplastic in the hot runner, so as to avoid drawing caused by the adhesion of the thermoplastic and the formed part in the material taking process;
after the injection molding is finished, air is injected into the first ventilation opening 1204, so that the air can enter the inner side of the sealing seat 1201 and is discharged from the first ventilation opening 1204 at the other side, the temperature of the sealing seat 1201 can be reduced through the flow of high-speed air, the cooling speed of the molded part can be accelerated, the displacement plate 20 and the molding seat 22 are integrated, the inner side of the molding seat 22 is also hollow, the molding seat 22 can be cooled through injecting the air into the inner side of the second ventilation opening 21, the molded part can be further accelerated to be cooled, the molding time of a single part can be greatly saved, and the processing speed of the equipment can be improved;
at last after the part shaping is accomplished, work through first cylinder 16, enable first cylinder 16 and drive fixed plate 15 and shift up, this makes seal assembly 12 can separate with the formed part, and work through second cylinder 18, can drive push pedal 19 and move down, this makes shaping seat 22 can separate with the formed part, this moment work through fan 23 at fixed station 17 rear portion, can blow out high velocity air to fixed station 17 front portion, this can make the formed part blow to the anterior ejection of compact of accomplishing of fixed station 17 through high velocity air, this ejection of compact convenience that can improve equipment.
Claims (10)
1. The plastic mold with low-temperature early warning and adopting the hot runner technology is characterized by comprising a workbench (1), a pressure regulating assembly (7) and an upper mold base (11), wherein the outer side of the bottom of the workbench (1) is provided with a lifting platform (2), the middle end of the top of the lifting platform (2) is provided with an injection port (3), the tail end of the inner side of the injection port (3) is provided with a communicating pipe (4), the outer end of the communicating pipe (4) is provided with a pressurizing seat (5), two sides of the outer part of the pressurizing seat (5) are connected with pressurizing pipes (6), the pressure regulating assembly (7) is arranged on two sides of the inner part of the pressurizing seat (5), the tail end of the bottom of the communicating pipe (4) is connected with the hot runner assembly (8), the outer end of the hot runner assembly (8) is provided with a heat regulating box (9), and two sides of the outer part of the hot runner assembly (8) are provided with heaters (10), the upper die holder (11) is arranged on the outer side of the bottom of the hot runner assembly (8), the upper die holder (11) comprises an upper die plate (1101), an injection molding hole (1102) and a sliding groove (1103), the injection molding hole (1102) is formed in the outer side of the top of the upper die plate (1101), the sliding groove (1103) is formed in each of two sides of the outer end of the upper die plate (1101), a sealing assembly (12) is arranged on the inner side of the upper die holder (11), the sealing assembly (12) comprises a sealing seat (1201), a cutting hole (1202), a sliding seat (1203) and a first ventilation opening (1204), the cutting hole (1202) is formed in the outer side of the top of the sealing seat (1201), the sliding seat (1203) is connected to two outer sides of the outside of the sealing seat (1201), the first ventilation opening (1204) is formed in each of the top of the sliding seat (1203), the motor (13) is arranged on two inner sides of the lifting platform (2), and the rotating plate (14) is arranged on the outer side of the bottom of the motor (13), fixing plates (15) are arranged on two sides of the outer portion of the lifting platform (2), a first air cylinder (16) is arranged on the outer side of the bottom of each fixing plate (15), and a fixing platform (17) is arranged at the bottom of each first air cylinder (16).
2. The plastic mold with low-temperature early warning and hot runner technology according to claim 1, wherein the vertical center line of the lifting table (2) and the vertical center line of the injection port (3) coincide with each other, and the injection port (3) and the communicating pipe (4) are communicated with each other.
3. The plastic mold with the low-temperature early warning function and the hot runner technology according to claim 1, wherein the pressure regulating assembly (7) comprises a pressure regulating pipe (701), a placement groove (702), an electromagnetic column (703), a spring seat (704) and a pressure regulating ball (705), the placement groove (702) is formed in the inner side surface of the pressure regulating pipe (701), the electromagnetic column (703) is connected to the inner middle end of the pressure regulating pipe (701), the spring seat (704) is arranged on the outer side surface of the electromagnetic column (703), and the pressure regulating ball (705) is arranged at the top end of the spring seat (704).
4. The plastic mold with low temperature pre-warning and hot runner technology according to claim 1, wherein the size of the pressure regulating ball (705) is similar to that of the placement groove (702), and the pressure regulating ball (705) is elastically connected to the spring seat (704).
5. The plastic mold with low temperature early warning and hot runner technology according to claim 1, wherein the hot runner assembly (8) comprises a heating box (801), a flow dividing cavity (802) and a flow dividing pipe (803), the flow dividing cavity (802) is disposed outside the bottom of the heating box (801), and the flow dividing pipe (803) is connected outside the bottom of the flow dividing cavity (802).
6. The plastic mold with low temperature pre-warning and hot runner technology according to claim 5, wherein the flow dividing cavity (802) and the flow dividing pipes (803) are connected to each other, and there are three flow dividing pipes (803).
7. The plastic mold with low temperature pre-warning and hot runner technology as claimed in claim 5, wherein the size, shape and position of the injection hole (1102) are the same as those of the cut-off hole (1202), and the injection hole (1102) is in socket connection with the shunt pipe (803).
8. The plastic mold with low temperature pre-warning and hot runner technology as claimed in claim 1, wherein the sealing seat (1201) is integrated with the sliding seat (1203), and the sliding seat (1203) is slidably connected with the sliding groove (1103).
9. The plastic mold with low-temperature early warning and hot runner technology according to claim 1, wherein second cylinders (18) are disposed on two sides of the inside of the fixing table (17), a push plate (19) is connected to the outer side of the top of each second cylinder (18), a displacement plate (20) is disposed on the outer side of the bottom of each push plate (19), second ventilation openings (21) are formed in two sides of the bottom of each displacement plate (20), a forming seat (22) is disposed on the outer side of the top of each displacement plate (20), and a fan (23) is disposed on the outer side of the rear portion of the fixing table (17).
10. The plastic mold with low temperature pre-warning and hot runner technology as claimed in claim 1, wherein the forming seat (22) and the displacement plate (20) are integrated, and the displacement plate (20) and the push plate (19) are welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358387.4A CN114055725A (en) | 2021-11-16 | 2021-11-16 | Plastic mold with low-temperature early warning function and adopting hot runner technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111358387.4A CN114055725A (en) | 2021-11-16 | 2021-11-16 | Plastic mold with low-temperature early warning function and adopting hot runner technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114055725A true CN114055725A (en) | 2022-02-18 |
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ID=80272830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111358387.4A Withdrawn CN114055725A (en) | 2021-11-16 | 2021-11-16 | Plastic mold with low-temperature early warning function and adopting hot runner technology |
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| Country | Link |
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| CN (1) | CN114055725A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157575A (en) * | 2022-06-22 | 2022-10-11 | 长沙贝斯特热流道科技有限公司 | Portable manual flow adjusting device |
-
2021
- 2021-11-16 CN CN202111358387.4A patent/CN114055725A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115157575A (en) * | 2022-06-22 | 2022-10-11 | 长沙贝斯特热流道科技有限公司 | Portable manual flow adjusting device |
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Application publication date: 20220218 |