CN112339225A - High-precision plastic injection mold with rapid cooling function - Google Patents
High-precision plastic injection mold with rapid cooling function Download PDFInfo
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- CN112339225A CN112339225A CN202011093303.4A CN202011093303A CN112339225A CN 112339225 A CN112339225 A CN 112339225A CN 202011093303 A CN202011093303 A CN 202011093303A CN 112339225 A CN112339225 A CN 112339225A
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- 238000001816 cooling Methods 0.000 title claims abstract description 45
- 238000002347 injection Methods 0.000 title claims abstract description 35
- 239000007924 injection Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 113
- 239000000498 cooling water Substances 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 17
- 239000000523 sample Substances 0.000 claims description 5
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification 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
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
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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
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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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
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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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7312—Construction of heating or cooling fluid flow channels
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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
- B29C45/76—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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76732—Mould
Abstract
The invention provides a high-precision plastic injection mold with a rapid cooling function, which aims at solving the problems that the existing high-precision plastic injection mold is inconvenient to rapidly disassemble and assemble and is inconvenient to rapidly cool and cool, and the invention provides a scheme that the high-precision plastic injection mold comprises an injection mold body, wherein the injection mold body comprises an upper mold and a combined lower mold matched with the upper mold, the combined lower mold consists of a bottom mold base and four arc mold bases annularly surrounding and arranged at the outer side of the bottom mold base, the inner sides of the arc mold bases are integrally provided with outer convex parts, and the four outer convex parts form an annular convex edge. Is beneficial to use.
Description
Technical Field
The invention relates to the technical field of high-precision plastic injection molds, in particular to a high-precision plastic injection mold with a rapid cooling function.
Background
An injection mold is a tool for producing plastic products; the injection molding is a processing method used for batch production of parts with complex shapes, and particularly relates to a method for injecting heated and molten plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification.
The high-precision injection mold in the prior art mostly cools and cools by circulating and flowing cooling water through a simple coil pipe, but the mode can not be suitable for products with concave buckling edges on the outer sides, such as a cover shell and some cylindrical plastic parts with annular inner grooves on the outer sides, the products with the concave buckling edges mostly adopt combined lower molds, namely after injection molding, the lower molds need to be disassembled into a plurality of pieces, and then the products can be taken out, so that the coil pipe coiling mode can not be suitable for the parts, the disassembling and assembling work of the combined lower molds can be influenced, for the parts with the concave buckling edges, the following defects exist during injection molding, 1, the combined lower molds need to be disassembled and assembled manually in a mode of disassembling a plurality of bolts, so as to avoid the phenomenon that the annular convex modules in the lower mold can not be removed due to buckling edges of the inner grooves formed by injection molding and buckling the annular convex modules, the disassembling and assembling work efficiency is low; 2. because the cooling mode of cooling water through the conventional coil pipe cannot be adopted, natural cooling or air blowing cooling is mostly adopted, so that the cooling efficiency is low, the waiting time is long, and the working efficiency is reduced.
In order to solve the problems that the combined lower die is inconvenient to disassemble and assemble automatically and quickly and the cooling is inconvenient to cool quickly, a high-precision plastic injection mold with a quick cooling function is provided.
Disclosure of Invention
The invention provides a high-precision plastic injection mold with a quick cooling function, which solves the problems of inconvenient quick disassembly and assembly and inconvenient quick cooling.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-precision plastic injection mold with a rapid cooling function comprises an injection mold body, wherein the injection mold body comprises an upper mold and a combined lower mold matched with the upper mold, the combined lower mold consists of a bottom mold base and four arc mold bases annularly surrounding and arranged on the outer side of the bottom mold base, outer convex parts are integrally arranged on the inner sides of the arc mold bases, an annular convex edge is formed by the four outer convex parts, one side of each two adjacent arc mold bases is in close movable contact with each other, a base is arranged below the combined lower mold, supporting legs are fixedly connected to four corners of the bottom of the base, an annular water tank is fixedly connected to the top of the base, the combined lower mold is positioned in the annular water tank, a U-shaped supporting rod is fixedly connected to the top of the annular water tank, an electric telescopic rod is fixedly installed at the top of the U-shaped supporting rod, and an extending end of the electric telescopic, the lifting plate sliding sleeve is arranged on the U-shaped supporting rod, the upper die is fixedly arranged at the bottom of the lifting plate, the top of the upper die is communicated and fixed with a pouring pipe orifice, the lifting plate is movably arranged on the pouring pipe orifice, the top of the base is embedded with the supporting seat, the bottom of the base seat is fixedly connected with the top of the supporting seat, the bottom of the arc-shaped die seat is in sliding contact with the top of the supporting seat, the annular water tank is provided with a cooling mechanism matched with the combined lower die, and the supporting seat is provided with a quick component mechanism matched with the combined lower die.
Preferably, the cooling mechanism comprises a cavity arranged on the arc-shaped die holder, four one-way valves are fixedly connected with the inner side of the annular water tank in a square shape, the outlets of the one-way valves extend into the annular water tank, the outer side of the arc-shaped die holder is fixedly connected with a first flexible hose and a second flexible hose which are communicated with the corresponding cavity, one end of the first flexible hose close to the corresponding one-way valve is communicated and fixed with the inlet of the one-way valve, the second flexible hose is positioned below the corresponding first flexible hose, an annular pipe is fixedly sleeved in the annular water tank, one end of the second flexible hose far away from the corresponding arc-shaped die holder is communicated and fixed with the inner side of the annular pipe, the bottom of the inner side of the annular water tank is fixedly connected with a water pump, the water inlet end of the water pump extends into the annular water tank and is fixedly connected with a filter screen, and the, the annular water tank is filled with cooling water, and an automatic water changing mechanism is arranged on the annular water tank.
Preferably, the rapid component mechanism comprises a rectangular groove arranged at the bottom of the supporting seat, four rectangular through holes are arranged on the inner wall of the top of the rectangular groove, guide rods are fixedly connected between the inner walls at two sides of the rectangular through holes, a moving seat is fixedly connected at the bottom of the arc-shaped die holder, the bottom of the moving seat penetrates through the corresponding rectangular through holes and extends into the rectangular groove, the moving seat is slidably sleeved on the corresponding guide rods, screw rods are rotatably arranged on the inner walls at four sides of the rectangular groove, a driving motor is fixedly arranged on the inner wall of the top of the rectangular groove, the driving motor is positioned between the four screw rods, one end of each screw rod close to the driving motor is fixedly connected with a first bevel gear, the same second bevel gear is meshed between the four first bevel gears, the two opposite first bevel gears are symmetrically arranged, and the bottom end of an output shaft of the driving motor is, rotate the cover on the screw rod and be equipped with the vertical support pole with rectangular channel top inner wall fixed connection, the thread bush is equipped with the nut on the screw rod, and the top fixedly connected with L-shaped piece of nut, two relative L-shaped piece symmetries set up, fixedly connected with fixed block on the bottom inner wall of L-shaped piece, and the fixed block is close to one side of driving motor and the fixedly connected with locating lever between one side inner wall of the L-shaped piece that corresponds, remove seat sliding sleeve and establish on the locating lever that corresponds, remove one side that driving motor was kept away from to the seat and the fixed block that corresponds and be close to fixedly connected with spring between one side of driving motor, and.
Preferably, automatic trade water mechanism including the intercommunication and fix at the left inlet tube of annular water tank and drain pipe, the equal fixedly connected with solenoid valve in the left end of inlet tube and the left end of drain pipe, annular water tank's left side fixed mounting has temperature detect switch, and temperature detect switch's temperature sensing probe extends to in the annular water tank, two solenoid valves all with temperature detect switch electric connection, two solenoid valves all are controlled by temperature detect switch, advance the union coupling with the water inlet and the outside running water of inlet tube connected's solenoid valve in two solenoid valves, the delivery port and the outside recovery pond pipe connection of solenoid valve with water piping connection.
Preferably, the top of the arc-shaped die holder is fixedly connected with a positioning clamping block, the bottom of the upper die is square and is provided with four positioning clamping grooves, and the positioning clamping grooves are located above the corresponding positioning clamping blocks and are matched with the positioning clamping blocks.
Preferably, the top of the base is provided with a groove, the inner wall of the groove is fixedly connected with the outer side of the supporting seat, and the inner wall of the bottom of the groove is provided with a square hole.
Preferably, the top of lifter plate has seted up first round hole and two rectangular holes, the lateral wall of first round hole with pour orificial outside movable contact, the inner wall in rectangular hole and the outside sliding connection of U-shaped branch.
Preferably, one side of the moving seat is provided with a second round hole and a third round hole, the side wall of the second round hole is in sliding connection with the outer side of the corresponding guide rod, and the side wall of the third round hole is in sliding connection with the outer side of the corresponding positioning rod.
Preferably, the inner walls of the four sides of the rectangular groove are fixedly connected with first bearings, one side of the vertical supporting rod is provided with a fourth round hole, a second bearing is fixedly sleeved in the fourth round hole, and the inner ring of the second bearing and the inner ring of the first bearing are fixedly sleeved with the outer sides of the corresponding screw rods.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, an arc-shaped die holder, a bottom die holder, a U-shaped support rod, an electric telescopic rod, a lifting plate, nuts, screws, a first bevel gear, a second bevel gear, a driving motor, an L-shaped block, fixed blocks and springs are matched with a moving seat, when the die is closed, the driving motor is started in a positive direction to drive the second bevel gear to rotate, the second bevel gear drives four screws to rotate through four first bevel gears, the four screws drive four nuts to move towards the middle, the four nuts drive the four fixed blocks to move towards the middle through the four L-shaped blocks, the fixed blocks drive the moving seat to slide on a guide rod through corresponding springs, the four moving seats drive the four arc-shaped die holders to contact with the bottom die holder towards the middle, and the four fixed blocks compress the four springs when continuing to move towards the middle, so that the springs are in a tensed state, and at the moment, the electric telescopic rod is, the lifting plate drives the upper die to move downwards and is matched with the combined lower die, so that rapid assembly is realized;
2. according to the invention, by matching the extraction annular water tank, the cavity, the first flexible hose, the one-way valve, the annular pipe, the second flexible hose, the water pump, the drain pipe, the water inlet pipe and the electromagnetic valve with the temperature control switch, cooling water in the extraction annular water tank of the water pump is started and drained into the annular pipe, the cooling water enters the four cavities through the four second flexible hoses and then flows back into the annular water tank through the corresponding first flexible hose and the corresponding one-way valve to form cooling water circulation, the cooling water which circularly flows can take away heat, so that the effect of continuously cooling is realized, when the cooling water gradually heats up along with the heat absorption of the cooling water circulation, when a temperature sensing probe on the temperature control switch detects that the cooling water in the annular water tank is higher than a preset temperature, the temperature control switch controls the two electromagnetic valves to be opened, and at the moment, a tap water inlet pipe, the water in the annular water tank is discharged into the pipeline of the external recovery tank through the water discharge pipe and the corresponding electromagnetic valve, and the water is gradually cooled under the action of one inlet and one outlet, so that the effect of water change is realized, and the cooling efficiency and stability are further improved;
3. after the cooling shaping, reverse start electric telescopic handle drives lifter plate and goes up the mould and rise, reverse start driving motor again, the motion process that starts driving motor with the forward on the same reason is totally opposite, four L-shaped pieces change into the direction removal of keeping away from each other this moment, when one side inner wall and the removal seat contact that corresponds of L-shaped piece, four L-shaped pieces drive four arc die holders through four removal seats this moment and keep away from each other, four arc die holders drive four outer convex parts and keep away from each other, fashioned product exposes completely this moment, alright take out, realize quick split.
The invention has reasonable design, is convenient for automatically and quickly disassembling the combined lower die, is convenient for quickly cooling the combined lower die in a cooling water circulation mode, is convenient for automatically realizing a water changing function when the temperature of cooling water is overhigh, improves the working efficiency and is beneficial to use.
Drawings
FIG. 1 is a schematic structural diagram of a high-precision plastic injection mold with a rapid cooling function according to the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of part A of FIG. 2;
FIG. 4 is a perspective view of a combined lower mold of a high-precision plastic injection mold with a rapid cooling function according to the present invention;
FIG. 5 is a schematic top view of a combined lower mold of a high precision plastic injection mold with a rapid cooling function according to the present invention;
FIG. 6 is a schematic top view of the assembled lower mold of the high-precision plastic injection mold with a rapid cooling function according to the present invention, in a mutually separated state;
FIG. 7 is a schematic top view of the ring tube and the second flexible hose connection member of the high precision plastic injection mold with rapid cooling function according to the present invention.
In the figure: 100 upper dies, 200 combined lower dies, 201 arc die holders, 202 bottom die holders, 203 outer convex parts, 1 base, 2 annular water tanks, 3U-shaped supporting rods, 4 electric telescopic rods, 5 lifting plates, 6 positioning clamping blocks, 7 supporting seats, 8 cavities, 9 first telescopic hoses, 10 one-way valves, 11 annular pipes, 12 second telescopic hoses, 13 water pumps, 14 water discharge pipes, 15 water inlet pipes, 16 electromagnetic valves, 17 temperature control switches, 18 rectangular grooves, 19 rectangular through holes, 20 guide rods, 21 screw rods, 22 first bevel gears, 23 second bevel gears, 24 driving motors, 25 vertical supporting rods, 26 nuts, 27L-shaped blocks, 28 fixing blocks, 29 positioning rods, 30 springs, 31 moving seats, 32 square holes and 33 positioning clamping grooves.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, a high-precision plastic injection mold with a rapid cooling function comprises an injection mold body, the injection mold body comprises an upper mold 100 and a combined lower mold 200 matched with the upper mold 100, the combined lower mold 200 is composed of a bottom mold base 202 and four arc mold bases 201 annularly surrounding the outside of the bottom mold base 202, the inner sides of the arc mold bases 201 are integrally provided with outer convex parts 203, the four outer convex parts 203 form an annular convex edge, the adjacent two arc mold bases 201 are closely and movably contacted with each other at one side, a base 1 is arranged below the combined lower mold 200, the four corners of the bottom of the base 1 are fixedly connected with supporting legs, the top of the base 1 is fixedly connected with an annular water tank 2, the combined lower mold 200 is positioned in the annular water tank 2, the top of the annular water tank 2 is fixedly connected with a U-shaped supporting rod 3, and the top of the U-shaped supporting rod 3, the extension end of the electric telescopic rod 4 extends into the U-shaped supporting rod 3 and is fixedly connected with a lifting plate 5, the lifting plate 5 is sleeved on the U-shaped supporting rod 3 in a sliding manner, the upper die 100 is fixedly installed at the bottom of the lifting plate 5, the top of the upper die 100 is communicated with and is fixedly provided with a pouring pipe orifice, the lifting plate 5 is movably sleeved on the pouring pipe orifice, the top of the base 1 is embedded with a supporting seat 7, the bottom of the bottom die seat 202 is fixedly connected with the top of the supporting seat 7, the bottom of the arc-shaped die seat 201 is in sliding contact with the top of the supporting seat 7, the annular water tank 2 is provided with a cooling mechanism matched with the combined lower die 200, the supporting seat 7 is provided with a quick component mechanism matched with the combined lower die 200, the design of the embodiment is reasonable, the automatic and quick assembly and disassembly of the combined lower die 200 are, and the automatic water changing function is conveniently realized when the temperature of the cooling water is overhigh, the working efficiency is improved, and the use is facilitated.
In this embodiment, the cooling mechanism includes a cavity 8 formed in the arc die holder 201, four check valves 10 are fixedly connected to the inner side of the annular water tank 2 in a square shape, outlets of the check valves 10 extend into the annular water tank 2, the outer side of the arc die holder 201 is fixedly connected with a first flexible hose 9 and a second flexible hose 12 which are communicated with the corresponding cavity 8, one end of the first flexible hose 9 close to the corresponding check valve 10 is communicated and fixed with an inlet of the check valve 10, the second flexible hose 12 is located below the corresponding first flexible hose 9, an annular pipe 11 is fixedly sleeved in the annular water tank 2, one end of the second flexible hose 12 far from the corresponding arc die holder 201 is communicated and fixed with the inner side of the annular pipe 11, a water pump 13 is fixedly connected to the bottom of the inner side of the annular water tank 2, and a water inlet end of the water pump 13 extends into the annular water tank 2 and is fixedly connected with a filter screen, the water outlet end of the water pump 13 is communicated and fixed with one side of the bottom of the annular pipe 11, the annular water tank 2 is filled with cooling water, the annular water tank 2 is provided with an automatic water changing mechanism, the quick component mechanism comprises a rectangular groove 18 arranged at the bottom of the supporting seat 7, the inner wall of the top of the rectangular groove 18 is provided with four rectangular through holes 19, guide rods 20 are fixedly connected between the inner walls of two sides of each rectangular through hole 19, the bottom of the arc-shaped die holder 201 is fixedly connected with a movable seat 31, the bottom of the movable seat 31 penetrates through the corresponding rectangular through hole 19 and extends into the rectangular groove 18, the movable seat 31 is slidably sleeved on the corresponding guide rod 20, screw rods 21 are rotatably arranged on the inner walls of four sides of the rectangular groove 18, a driving motor 24 is fixedly arranged on the inner wall of the top of the rectangular groove 18, the driving motor 24 is positioned between the four screw rods 21, one end of each, the same second bevel gear 23 is engaged between the four first bevel gears 22, two opposite first bevel gears 22 are symmetrically arranged, the bottom end of the output shaft of the driving motor 24 is fixedly connected with the top of the second bevel gear 23, the screw 21 is rotatably sleeved with a vertical support rod 25 fixedly connected with the inner wall of the top of the rectangular groove 18, a nut 26 is sleeved on the screw 21 in a threaded manner, an L-shaped block 27 is fixedly connected with the top of the nut 26, two opposite L-shaped blocks 27 are symmetrically arranged, a fixed block 28 is fixedly connected with the inner wall of the bottom of the L-shaped block 27, a positioning rod 29 is fixedly connected between one side of the fixed block 28 close to the driving motor 24 and the inner wall of one side of the corresponding L-shaped block 27, the movable seat 31 is slidably sleeved on the corresponding positioning rod 29, and a spring 30 is fixedly connected between one side of the movable seat 31 far away from the driving motor, and the spring 30 is movably sleeved on the corresponding positioning rod 29, the automatic water changing mechanism comprises a water inlet pipe 15 and a water outlet pipe 14 which are communicated and fixed on the left side of the annular water tank 2, the left end of the water inlet pipe 15 and the left end of the water outlet pipe 14 are both fixedly connected with electromagnetic valves 16, the left side of the annular water tank 2 is fixedly provided with a temperature control switch 17, a temperature sensing probe of the temperature control switch 17 extends into the annular water tank 2, the two electromagnetic valves 16 are both electrically connected with the temperature control switch 17, the two electromagnetic valves 16 are controlled by the temperature control switch 17, a water inlet of the electromagnetic valve 16 connected with the water inlet pipe 15 in the two electromagnetic valves 16 is connected with an external tap water inlet pipe, a water outlet of the electromagnetic valve 16 connected with the water outlet pipe 14 is connected with an external recycling tank pipe, the top of the arc-shaped die holder 201 is fixedly connected with a positioning clamping block 6, the bottom of the upper die 100 is square and is, the top of the base 1 is provided with a groove, the inner wall of the groove is fixedly connected with the outer side of the supporting seat 7, the inner wall of the bottom of the groove is provided with a square hole 32, the top of the lifting plate 5 is provided with a first round hole and two rectangular holes, the side wall of the first round hole is movably contacted with the outer side of the pouring pipe orifice, the inner wall of the rectangular hole is slidably connected with the outer side of the U-shaped supporting rod 3, one side of the moving seat 31 is provided with a second round hole and a third round hole, the side wall of the second round hole is slidably connected with the outer side of the corresponding guide rod 20, the side wall of the third round hole is slidably connected with the outer side of the corresponding positioning rod 29, the inner walls of the four sides of the rectangular groove 18 are fixedly connected with first bearings, one side of the vertical supporting rod 25 is provided with a fourth round hole, a second bearing is fixedly sleeved in the fourth round hole, the inner ring, be convenient for automatic quick the group's of tearing open modular bed die 200, and be convenient for quick cooling modular bed die 200 through cooling water endless mode, and be convenient for realize changing the water function voluntarily when the cooling water temperature is too high, improve work efficiency, be favorable to making.
In this embodiment, during mold closing, first, the driving motor 24 is started in a forward direction to drive the second bevel gear 23 to rotate, the second bevel gear 23 drives the four screws 21 to rotate through the four first bevel gears 22 engaged therewith, the screws 21 can drive the corresponding nuts 26 to move in a direction close to the driving motor 24, at this time, the four nuts 26 drive the four fixing blocks 28 to move in a middle direction through the four L-shaped blocks 27, the fixing blocks 28 drive the moving seats 31 to move in a direction close to the driving motor 24 through the corresponding springs 30, the moving seats 31 slide on the corresponding guide rods 20, at the same time, the four moving seats 31 drive the four arc mold bases 201 to move in a middle direction, the arc mold bases 201 stretch the corresponding first flexible hoses 9 and the second flexible hoses 12, when the four arc mold bases 201 are all contacted with the bottom mold base 202, at this time, two adjacent arc mold bases 201 are all contacted with two adjacent outer convex portions 203, a die cavity with an annular male die inside is formed, and when the die cavity and the fixed blocks are contacted with each other, a resisting force is generated mutually, at the moment, when the four fixed blocks 28 continue to move towards the middle, the four positioning rods 29 are driven to respectively slide in the corresponding moving seats 31, and the four springs 30 are compressed, so that the springs 30 are in a tightened state, and under the tightening elasticity of the springs, the four arc die holders 201 can be further tightly attached to each other and the outer side of the bottom die holder 202, at the moment, the electric telescopic rod 4 is started to drive the lifting plate 5 to downwards slide on the U-shaped supporting rod 3, the lifting plate 5 drives the upper die 100 to downwards move to be tightly contacted with the combined lower die 200, the upper die 100 drives the four positioning clamping grooves 33 to be respectively clamped on the corresponding positioning clamping blocks 6, and at the moment, the product melting liquid can be poured on the;
when cooling, the water pump 13 is started, the water pump 13 extracts cooling water in the annular water tank 2 and discharges the cooling water into the annular pipe 11, the cooling water is divided into four second flexible hoses 12 through the annular pipe 11, enters the cavities 8 on the corresponding arc-shaped die holders 201, flows back into the corresponding first flexible hoses 9 through the cavities 8, and finally flows back into the annular water tank 2 through the check valves 10 to form cooling water circulation, so that the cooling water can circulate and continuously flow in the four cavities 8, the heat transferred to the combined lower die 200 in injection molding can be taken away by the circulating cooling water, the effect of continuous cooling is realized, wherein when the cooling water gradually heats up along with the heat absorption of the cooling water circulation, the opening temperature of the two electromagnetic valves 16 can be preset through the temperature control switch 17, when a temperature sensing probe on the temperature control switch 17 detects that the cooling water in the annular water tank 2 is higher than the preset temperature, the temperature control switch 17 controls the two electromagnetic valves 16 to be opened, because the electromagnetic valve 16 connected with the water inlet pipe 15 in the two electromagnetic valves 16 is connected with an external tap water inlet pipe, the electromagnetic valve 16 connected with the water outlet pipe 14 is connected with an external recycling pool pipeline, at the moment, the tap water inlet pipe supplies water to the annular water tank 2 through the corresponding electromagnetic valve 16 and the water inlet pipe 15 in sequence, the water in the annular water tank 2 is discharged into the external recycling pool pipeline through the water outlet pipe 14 and the corresponding electromagnetic valve 16, under the action of one inlet and one outlet, the water is gradually cooled to realize the effect of water change, the cooling effect is prevented from being reduced due to the overheating of cooling water, and the cooling efficiency and the cooling stability are further improved;
when a product needs to be taken out after cooling and forming through mold opening, the operation process is opposite to the operation process of mold closing, firstly, the electric telescopic rod 4 is started reversely to drive the lifting plate 5 and the upper mold 100 to lift, then the driving motor 24 is started reversely, the motion process is completely opposite to the motion process of the driving motor 24 started forwardly, at the moment, the four L-shaped blocks 27 are changed to move towards the directions away from each other, the L-shaped blocks 27 drive the corresponding fixed blocks 28 to release elasticity to the springs 30 in the compression state, until the inner wall of one side of each L-shaped block 27 is contacted with the side, close to the driving motor 24, of the corresponding moving seat 31, the four L-shaped blocks 27 away from each other drive the four moving seats 31 to be away from each other, the four moving seats 31 drive the four arc-shaped mold seats 201 to be away from each other, the four arc-shaped mold seats, in order to avoid forming the shelter, fashioned product exposes completely this moment, alright take out for can be automatic carry out the split to modular bed die 200 fast.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides a high accuracy plastic injection mold with quick cooling function, includes the injection mold body, the injection mold body includes mould (100) and with last mould (100) assorted combination formula bed die (200), a serial communication port, combination formula bed die (200) is by die block seat (202) and be that the annular surrounds four arc die holders (201) that set up in the die block seat (202) outside and constitute, the inboard an organic whole of arc die holder (201) is provided with outer convex part (203), an annular chimb is constituteed to four outer convex parts (203), the close movable contact in one side that two adjacent arc die holders (201) are close to each other, the below of combination formula bed die (200) is equipped with base (1), and the equal fixedly connected with landing leg in bottom four corners of base (1), the top fixedly connected with annular water tank (2) of base (1), combination formula bed die (200) are located annular water tank (2), the top of the annular water tank (2) is fixedly connected with a U-shaped supporting rod (3), the top of the U-shaped supporting rod (3) is fixedly provided with an electric telescopic rod (4), the extending end of the electric telescopic rod (4) extends into the U-shaped supporting rod (3) and is fixedly connected with a lifting plate (5), the lifting plate (5) is sleeved on the U-shaped supporting rod (3) in a sliding manner, an upper die (100) is fixedly arranged at the bottom of the lifting plate (5), the top of the upper die (100) is communicated with and is fixedly provided with a pouring pipe orifice, the lifting plate (5) is movably sleeved on the pouring pipe orifice, the top of the base (1) is embedded with a supporting seat (7), the bottom of a bottom die seat (202) is fixedly connected with the top of the supporting seat (7), the bottom of an arc die seat (201) is in sliding contact with the top of the supporting seat (7), the annular water tank (, the supporting seat (7) is provided with a quick component mechanism matched with the combined lower die (200).
2. The high-precision plastic injection mold with the rapid cooling function as claimed in claim 1, wherein the cooling mechanism comprises a cavity (8) formed on the arc mold holder (201), the inner side of the annular water tank (2) is fixedly connected with four check valves (10) in a square shape, the outlets of the check valves (10) extend into the annular water tank (2), the outer side of the arc mold holder (201) is fixedly connected with a first flexible hose (9) and a second flexible hose (12) which are communicated with the corresponding cavity (8), one end of the first flexible hose (9) close to the corresponding check valve (10) is communicated and fixed with the inlet of the check valve (10), the second flexible hose (12) is located below the corresponding first flexible hose (9), the annular water tank (2) is internally and fixedly sleeved with the annular pipe (11), one end of the second flexible hose (12) far away from the corresponding arc mold holder (201) is communicated and fixed with the inner side of the annular pipe (11), the inboard bottom fixedly connected with water pump (13) of annular water tank (2), and the end of intaking of water pump (13) extend to annular water tank (2) in and fixedly connected with filter screen, the play water end of water pump (13) and the bottom one side intercommunication of annular tube (11) and fixed, annular water tank (2) intussuseption is filled with the cooling water, be provided with on annular water tank (2) and trade water mechanism automatically.
3. The high-precision plastic injection mold with the rapid cooling function according to claim 1, wherein the rapid component mechanism comprises a rectangular groove (18) formed at the bottom of the supporting seat (7), and four rectangular through holes (19) are formed on the inner wall of the top of the rectangular groove (18), a guide rod (20) is fixedly connected between the inner walls of the two sides of the rectangular through hole (19), a moving seat (31) is fixedly connected to the bottom of the arc-shaped mold seat (201), and the bottom of the moving seat (31) penetrates through the corresponding rectangular through hole (19) and extends into the rectangular groove (18), the moving seat (31) is slidably sleeved on the corresponding guide rod (20), the inner walls of the four sides of the rectangular groove (18) are rotatably provided with screw rods (21), the inner wall of the top of the rectangular groove (18) is fixedly provided with a driving motor (24), the driving motor (24) is located between the four screw rods (21), one end of the screw rod (21) close to the driving motor (24) is fixedly connected with a first bevel gear (22), a same second bevel gear (23) is meshed between the four first bevel gears (22), the two opposite first bevel gears (22) are symmetrically arranged, the bottom end of an output shaft of the driving motor (24) is fixedly connected with the top of the second bevel gear (23), a vertical support rod (25) fixedly connected with the inner wall of the top of the rectangular groove (18) is rotatably sleeved on the screw rod (21), a nut (26) is sleeved on the screw rod (21) in a threaded manner, the top of the nut (26) is fixedly connected with an L-shaped block (27), the two opposite L-shaped blocks (27) are symmetrically arranged, a fixed block (28) is fixedly connected on the inner wall of the bottom of the L-shaped block (27), and a positioning rod (29) is fixedly connected between one side of the fixed block (28) close to the driving motor (24) and the inner wall, the movable seat (31) is sleeved on the corresponding positioning rod (29) in a sliding manner, a spring (30) is fixedly connected between one side of the movable seat (31) far away from the driving motor (24) and one side of the corresponding fixed block (28) close to the driving motor (24), and the spring (30) is movably sleeved on the corresponding positioning rod (29).
4. The high precision plastic injection mold with rapid cooling function as claimed in claim 2, it is characterized in that the automatic water changing mechanism comprises a water inlet pipe (15) and a water outlet pipe (14) which are communicated and fixed on the left side of the annular water tank (2), the left end of the water inlet pipe (15) and the left end of the water outlet pipe (14) are both fixedly connected with an electromagnetic valve (16), the left side of the annular water tank (2) is fixedly provided with a temperature control switch (17), and the temperature sensing probe of the temperature control switch (17) extends into the annular water tank (2), the two electromagnetic valves (16) are electrically connected with the temperature control switch (17), the two electromagnetic valves (16) are controlled by the temperature control switch (17), the water inlet of the electromagnetic valve (16) connected with the water inlet pipe (15) in the two electromagnetic valves (16) is connected with an external tap water inlet pipe, the water outlet of the electromagnetic valve (16) connected with the water discharge pipe (14) is connected with the pipeline of the external recovery tank.
5. The high-precision plastic injection mold with the rapid cooling function as claimed in claim 1, wherein a positioning block (6) is fixedly connected to the top of the arc mold base (201), four positioning slots (33) are formed in the bottom of the upper mold (100) in a square shape, and the positioning slots (33) are located above the corresponding positioning blocks (6) and are matched with the positioning blocks (6).
6. The plastic injection mold with high precision and rapid cooling function as claimed in claim 1, wherein the base (1) is provided with a groove at the top, the inner wall of the groove is fixedly connected with the outer side of the supporting seat (7), and the inner wall of the bottom of the groove is provided with a square hole (32).
7. The high-precision plastic injection mold with the rapid cooling function as claimed in claim 1, wherein a first round hole and two rectangular holes are formed in the top of the lifting plate (5), the side wall of the first round hole is in movable contact with the outer side of the pouring pipe orifice, and the inner wall of each rectangular hole is in sliding connection with the outer side of the U-shaped support rod (3).
8. The high-precision plastic injection mold with the rapid cooling function as claimed in claim 3, wherein one side of the moving seat (31) is provided with a second circular hole and a third circular hole, the side wall of the second circular hole is slidably connected with the outer side of the corresponding guide rod (20), and the side wall of the third circular hole is slidably connected with the outer side of the corresponding positioning rod (29).
9. The high-precision plastic injection mold with the rapid cooling function according to claim 3, wherein the inner walls of the four sides of the rectangular groove (18) are fixedly connected with first bearings, one side of the vertical support rod (25) is provided with a fourth round hole, a second bearing is fixedly sleeved in the fourth round hole, and the inner ring of the second bearing and the inner ring of the first bearing are fixedly sleeved with the outer sides of the corresponding screw rods (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011093303.4A CN112339225A (en) | 2020-10-13 | 2020-10-13 | High-precision plastic injection mold with rapid cooling function |
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| CN202011093303.4A CN112339225A (en) | 2020-10-13 | 2020-10-13 | High-precision plastic injection mold with rapid cooling function |
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| CN113829593A (en) * | 2021-10-21 | 2021-12-24 | 苏州晴朗工业科技有限公司 | Cooling device and cooling method for ultra-thin and long insert |
| CN114261053A (en) * | 2021-12-30 | 2022-04-01 | 重庆浙渝汽车配件有限公司 | Fast-cooling injection molding device for processing automotive interior parts |
| CN114393778A (en) * | 2021-12-16 | 2022-04-26 | 南通东博精密机械有限公司 | Injection mold with complex molded surface and machining method thereof |
| CN115027017A (en) * | 2022-06-23 | 2022-09-09 | 宁波保税区锐敏日用品有限公司 | Forming die for heat-sealing quality-guaranteeing and freshness-keeping lunch box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113829593A (en) * | 2021-10-21 | 2021-12-24 | 苏州晴朗工业科技有限公司 | Cooling device and cooling method for ultra-thin and long insert |
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| CN115027017A (en) * | 2022-06-23 | 2022-09-09 | 宁波保税区锐敏日用品有限公司 | Forming die for heat-sealing quality-guaranteeing and freshness-keeping lunch box |
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Application publication date: 20210209 |