CN116945493B - Injection mold for production of household appliance display panel - Google Patents
Injection mold for production of household appliance display panel Download PDFInfo
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- CN116945493B CN116945493B CN202310905293.7A CN202310905293A CN116945493B CN 116945493 B CN116945493 B CN 116945493B CN 202310905293 A CN202310905293 A CN 202310905293A CN 116945493 B CN116945493 B CN 116945493B
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- 238000002347 injection Methods 0.000 title claims abstract description 22
- 239000007924 injection Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000007789 sealing Methods 0.000 claims abstract description 91
- 230000005540 biological transmission Effects 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 7
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 4
- 238000000429 assembly Methods 0.000 claims 4
- 238000001746 injection moulding Methods 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 14
- 239000002994 raw material Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2608—Mould seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/67—Mould opening, closing or clamping devices hydraulic
-
- 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
- B29C45/67—Mould opening, closing or clamping devices hydraulic
- B29C2045/6792—Combined pneumatic-hydraulic cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
- B29L2007/002—Panels; Plates; Sheets
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of injection molds, and discloses an injection mold for producing a display panel of a household appliance. The invention achieves the aim of facilitating demoulding of injection molding by arranging the sealing ring, the first sleeve, the piston rod and the like, the fourth spring returns to push the piston rod and the second sleeve upwards, meanwhile, the third spring returns to pull the first sleeve upwards, at the moment, the air inlet hole is communicated with the top of the first mold, the air in the first sleeve is injected into the first mold through the piston rod and the second sleeve, the frame of the display panel of the central air conditioner breaks away from the top of the first mold and the second mold under the pushing of the air, the injection molding is prevented from being adsorbed on the surfaces of the first mold and the second mold and being difficult to take down, the yield of injection molding of the frame of the display panel of the central air conditioner is improved, and the frame of the display panel of the central air conditioner is convenient to take down, so that the effect of facilitating demoulding of the injection molding is achieved.
Description
Technical Field
The invention belongs to the technical field of injection molds, and particularly relates to an injection mold for producing a display panel of a household appliance.
Background
The intelligent household appliance is a household appliance product formed by introducing a microprocessor, a sensor technology and a network communication technology into household appliances, has the functions of automatically sensing the space state of a residence, the state of the household appliance, and the service state of the household appliance, and can automatically control and receive control instructions of residence users in residence or remotely; the display panel is a display tool for displaying a certain electronic file on a screen through a specific transmission device; the central air conditioner display panel comprises a liquid crystal module, a control panel, an inverter and a fixed frame, wherein an injection molding machine is main molding equipment for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by using a plastic molding die, and the injection molding is realized by the injection molding machine and the die.
At present, after the central air conditioner display panel frame is mostly injection molded, the existing central air conditioner display panel frame is usually manually taken down after injection molding is finished, but because the existing central air conditioner display panel frame is mostly injection molded, the central air conditioner display panel frame cannot be rapidly cooled after injection molding is finished, so that the central air conditioner display panel frame is softer, meanwhile, injection molding raw materials of the central air conditioner display panel frame are sticky and can be attached to the inside of a mold, the shape of a central air conditioner display panel frame piece can be changed after manual taking down, thereby affecting the quality of a finished product of the central air conditioner display panel frame, and the central air conditioner display panel frame cannot be used.
Disclosure of Invention
(One) solving the technical problems
In order to solve the problems in the background art, the invention provides the injection mold for producing the display panel of the household appliance, solves the problem that the frame of the display panel of the traditional central air conditioner is difficult to take off after injection molding, and has the advantage of convenience in demolding of injection molding pieces.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an injection mold is used in household electrical appliances display panel production, includes the base, the top fixed mounting of base has fixed casing, the top fixed mounting of base has the support frame, the top fixed mounting of support frame has drive assembly, drive assembly's bottom fixed mounting has last mould subassembly, the inside four sides of fixed casing is fixed mounting respectively has the bed die subassembly, the inside of fixed casing just is located two movable mounting has the promotion subassembly between the bed die subassembly, the both ends of bed die subassembly bottom are movable mounting respectively has the drawing of patterns subassembly.
Preferably, the driving assembly comprises a cylinder, the bottom of the cylinder is fixedly arranged at the top of the supporting frame, a transmission plate is fixedly arranged at the output end of the cylinder, a second spring is fixedly arranged at the bottom of the transmission plate, and a transmission block is fixedly arranged at the bottom of the output end of the cylinder.
Preferably, the upper die assembly comprises an upper die main body, the bottom of the upper die main body is fixedly installed with the bottom of the second spring, the left end and the right end of the top of the upper die main body are respectively fixedly provided with a material injection pipe, the bottom of the middle of the upper die main body is fixedly provided with a fifth sealing gasket, and the bottom of the upper die main body is fixedly provided with a fourth sealing gasket.
Preferably, the lower die assembly comprises four first dies, four first dies are fixedly mounted on four sides of the top of the base, four first dies are fixedly mounted on four sides of the inner wall of the fixed shell, a first sealing gasket is fixedly mounted at the outer ends of the top of the four first dies respectively, a sixth sealing gasket is fixedly mounted at the inner ends of the top of the four first dies respectively, and a fixing frame is fixedly mounted at the inner wall of the four first dies.
Preferably, the demolding assembly comprises a first limiting ring, the first limiting ring is fixedly mounted in the first mold, a first sleeve is movably sleeved in the first limiting ring, a second limiting ring is fixedly mounted at the bottom of the first sleeve, a sealing ring is fixedly mounted at the top of the first sleeve, a third spring is fixedly mounted at the top of the second limiting ring, a third limiting ring is fixedly mounted at the outer portion of the first sleeve, air inlets are formed in the outer annular portions of the first sleeve at equal angles, a second sleeve is movably sleeved in the inner portion of the first sleeve, a piston rod is movably sleeved in the inner portion of the second sleeve, a pushing plate is fixedly mounted at the bottom of the piston rod, and a fourth spring is fixedly mounted at the bottom of the pushing plate.
Preferably, the pushing assembly comprises four second dies, the four second dies are movably mounted with four corners of the inner wall of the fixed shell respectively, sliding grooves are formed in the four corners of the inner wall of the fixed shell respectively, first springs are fixedly mounted at the bottoms of the four second dies respectively, sliding blocks are fixedly mounted at the outsides of the four second dies respectively, second sealing gaskets are fixedly mounted at the outer ends of the tops of the four second dies respectively, and third sealing gaskets are fixedly mounted at the inner ends of the tops of the four second dies respectively.
Preferably, two sides of the four second molds are respectively contacted with two sides of the four first molds, the sliding blocks respectively slide in the sliding grooves, the bottoms of the first springs are fixedly connected with four corners of the tops of the bases, the fifth sealing gasket, the fourth sealing gasket, the sixth sealing gasket and the third sealing gasket are made of polytetrafluoroethylene materials, and four corners of the connecting plate are respectively fixedly installed with the inner walls of the four second molds.
Preferably, the combination of four first sealing gaskets and four second sealing gaskets is a first rectangular ring, the first rectangle is also vertical to the fourth sealing gaskets, the combination of four sixth sealing gaskets and four third sealing gaskets is a second rectangular ring, the second rectangular ring is vertical to the bottom of the fifth sealing gaskets, and connecting plates are fixedly arranged on the inner sides of the four second molds.
Preferably, circular holes are respectively formed in two ends of the top of the first die, the first limiting ring is fixedly mounted in the circular holes, the outer wall of the first sleeve is in contact with the inner wall of the first limiting ring, the thickness of the sealing ring is consistent with the distance between the first sleeve and the first die, and the outer diameter value of the sealing ring is consistent with the inner diameter value of the circular holes.
Preferably, the top of the third spring is fixedly connected with the bottom of the first die, the outer diameter value of the third limiting ring is consistent with the inner diameter value of the circular hole, the top of the second sleeve is consistent with the inner diameter value of the first sleeve, and the outer diameter value of the top of the piston rod is consistent with the inner diameter value of the second sleeve.
(III) beneficial effects
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, the purpose of facilitating demolding of an injection molding piece is achieved by arranging the sealing ring, the first sleeve, the piston rod and the like, after injection molding of the central air conditioner display panel is completed, the cylinder is recovered upwards, the transmission block moves upwards, the piston rod and the second sleeve are pushed upwards by fourth spring reset, meanwhile, the first sleeve is pulled upwards by third spring reset, at the moment, the air inlet hole is communicated with the top of the first mold, the air in the first sleeve is injected into the first mold through the piston rod and the second sleeve, the frame of the central air conditioner display panel is separated from the tops of the first mold and the second mold under the pushing of the air, the injection molding piece is prevented from being adsorbed on the surfaces of the first mold and the second mold and being difficult to take down, the injection molding yield of the frame of the central air conditioner display panel is improved, and the injection molding piece is convenient to take down, so that the effect of facilitating demolding of the injection molding piece is achieved;
the invention achieves the aim of conveniently taking out the injection molding piece through arranging the second mold, the first spring, the sliding block and the like, after the injection molding of the central air-conditioning display panel is finished, the second spring is gradually reset in the process of recycling the air cylinder, and the upper mold main body is pulled upwards, at the moment, the bottom of the upper mold main body is separated from the top of the second mold and the top of the first mold, and meanwhile, the first spring resets, respectively jack up the second mold, jack up the border of the central air-conditioning display panel upwards through the upward movement of the second mold, and can be taken down manually, thereby achieving the effect of conveniently taking out the mold;
The invention achieves the purpose of good filling effect of injection molding by arranging the first sleeve, the second sleeve, the piston rod and the like, the transmission block is pushed downwards by the air cylinder, the pushing plate is pushed downwards and compresses the fourth spring, the piston rod is pulled downwards respectively in the process of the pushing plate moving downwards, the air between the first mold, the upper mold main body and the second mold is pumped out in the process of the piston rod moving downwards, and the air between the first mold, the upper mold main body and the second mold enters the interior of the first sleeve through the air inlet holes respectively, meanwhile, the air in the interior of the first mold, the upper mold main body and the second mold is in a sealing structure, and the air in the interior of the first mold, the upper mold main body, the first mold and the second mold respectively moves downwards through the piston rod and the second sleeve to enter the interior of the first sleeve, so that the upper mold main body, the first mold and the second mold are in a negative pressure state, and the injection molding raw materials are more uniform after entering the interior of the upper mold main body, the first mold and the second mold, so that empty drums are avoided in the injection molding process, and the yield of the injection molding is improved, and the purpose of good filling effect of the injection molding is achieved.
Drawings
FIG. 1 is a schematic view of the overall appearance of the structure of the present invention;
FIG. 2 is a schematic cross-sectional front view of the structure of the present invention;
FIG. 3 is an enlarged schematic view of the structure of the present invention at A in FIG. 2;
FIG. 4 is a schematic cross-sectional view of one side of the structure of the present invention;
FIG. 5 is a schematic diagram of the assembly of the structural pushing assembly and the lower mold assembly of the present invention;
FIG. 6 is a schematic partial cross-sectional view of the structure of the present invention;
FIG. 7 is a schematic cross-sectional view of an upper mold of the structure of the present invention;
FIG. 8 is a schematic view of the lower mold assembly and pushing assembly of the present invention;
FIG. 9 is a schematic diagram of the cooperation of the lower mold assembly and the pushing assembly of the present invention.
In the figure: 1. a base; 2. a fixed housing; 3. a lower die assembly; 301. a first mold; 302. a first gasket; 303. a fixing frame; 304. a sixth gasket; 4. a pushing assembly; 401. a second mold; 402. a second gasket; 403. a sliding block; 404. a sliding groove; 405. a first spring; 406. a connecting plate; 407. a third gasket; 5. an upper mold assembly; 501. an upper die body; 502. a fourth gasket; 503. a fifth gasket; 504. a material injection pipe; 6. a support frame; 7. a drive assembly; 701. a cylinder; 702. a drive plate; 703. a second spring; 704. a transmission block; 8. a demolding assembly; 801. a first sleeve; 802. a first stop collar; 803. a seal ring; 804. an air inlet hole; 805. a second sleeve; 806. a second limiting ring; 807. a third spring; 808. a piston rod; 809. a pushing plate; 810. a third limiting ring; 811. and a fourth spring.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 9, the invention provides an injection mold for producing a display panel of a household appliance, which comprises a base 1, wherein a fixed shell 2 is fixedly arranged at the top of the base 1, a supporting frame 6 is fixedly arranged at the top of the base 1, a driving component 7 is fixedly arranged at the top of the supporting frame 6, an upper mold component 5 is fixedly arranged at the bottom of the driving component 7, lower mold components 3 are respectively and fixedly arranged on four sides in the fixed shell 2, a pushing component 4 is movably arranged in the fixed shell 2 and between the two lower mold components 3, and demolding components 8 are respectively and movably arranged at two ends of the bottom of the lower mold components 3.
The scheme is adopted: the upper die assembly 5 is pushed downwards by the driving assembly 7, the pushing assembly 4 is pushed by the upper die assembly 5 to enable the top of the pushing assembly 4 to be kept horizontal with the top of the lower die assembly 3, the bottom of the upper die assembly 5 is contacted with the tops of the lower die assembly 3 and the pushing assembly 4, a sealing structure is formed among the lower die assembly 3, the pushing assembly 4 and the upper die assembly 5, meanwhile, the upper die assembly 5 is limited by the lower die assembly 3 and the pushing assembly 4, meanwhile, the driving assembly 7 continues to push downwards, the demolding assembly 8 is pushed downwards, the lower die assembly 3, the pushing assembly 4 and the upper die assembly 5 are pumped downwards by the demolding assembly 8, gas enters the inside of the demolding assembly 8, at the moment, a negative pressure state is formed among the lower die assembly 3, the pushing assembly 4 and the upper die assembly 5, injection molding raw materials are injected among the lower die assembly 3, the pushing assembly 4 and the upper die assembly 5 through the upper die assembly 5, and the raw materials are uniformly distributed among the lower die assembly 3, the pushing assembly 4 and the upper die assembly 5 due to the negative pressure state, and the hollow frame of the central display panel is avoided, and the hollow display panel is effectively protected;
After the hollow display panel frame of centre is moulded plastics and is accomplished, drive assembly 7 retrieves this moment, drawing of patterns subassembly 8 upwards removes this moment to the top gas injection of lower mould subassembly 3, the inside injection molding of pushing away from lower mould subassembly 3 and pushing away subassembly 4 under the promotion of gas of pushing away from subassembly 4 this moment, can be convenient for take off the injection molding, upwards stimulate mould subassembly 5 through drive assembly 7 simultaneously, go up mould subassembly 5 and break away from the top of lower mould subassembly 3 and pushing away subassembly 4, push away subassembly 4 and upwards jack-up the hollow display panel frame of centre this moment, can be convenient for take off it.
As shown in fig. 2, 4 and 7, the driving assembly 7 comprises a cylinder 701, the bottom of the cylinder 701 is fixedly arranged on the top of the supporting frame 6, a transmission plate 702 is fixedly arranged at the output end of the cylinder 701, a second spring 703 is fixedly arranged at the bottom of the transmission plate 702, and a transmission block 704 is fixedly arranged at the bottom of the output end of the cylinder 701;
The upper mold assembly 5 comprises an upper mold body 501, wherein the bottom of the upper mold body 501 is fixedly installed with the bottom of a second spring 703, the left end and the right end of the top of the upper mold body 501 are respectively fixedly installed with a filling pipe 504, the bottom of the middle part of the upper mold body 501 is fixedly installed with a fifth sealing pad 503, and the bottom of the upper mold body 501 is fixedly installed with a fourth sealing pad 502.
The scheme is adopted: the transmission plate 702 and the transmission block 704 are pushed downwards by the starting air cylinder 701, the upper die main body 501 is pushed downwards by the second spring 703 in the process of downward movement of the transmission plate 702, the bottom of the upper die main body 501 is contacted with the top of the pushing component 4, the pushing component 4 is pushed downwards so as to keep the top of the lower die component 3 horizontal, the bottom of the upper die main body 501 is contacted with the tops of the lower die component 3 and the pushing component 4, the upper die main body 501 is sealed by the fourth sealing gasket 502 and the fifth sealing gasket 503, the upper die main body 501 is limited by the lower die component 3 and the pushing component 4, the air cylinder 701 continuously pushes the transmission block 704 downwards, the second spring 703 is compressed at the moment, the transmission block 704 continuously moves downwards, and the demolding component 8 can be pushed downwards to suck air between the lower die component 3, the pushing component 4 and the upper die main body 501.
As shown in fig. 2, 3, 4, 5, 6 and 7, the lower mold assembly 3 comprises four first molds 301, the four first molds 301 are fixedly mounted on four sides of the top of the base 1, the outer parts of the four first molds 301 are fixedly mounted on four sides of the inner wall of the fixed shell 2, the outer ends of the tops of the four first molds 301 are respectively fixedly provided with a first sealing gasket 302, the inner ends of the tops of the four first molds 301 are respectively fixedly provided with a sixth sealing gasket 304, and the inner walls of the four first molds 301 are fixedly provided with a fixing frame 303;
The demolding assembly 8 comprises a first limiting ring 802, wherein the first limiting ring 802 is fixedly arranged inside the first mold 301, a first sleeve 801 is movably sleeved inside the first limiting ring 802, a second limiting ring 806 is fixedly arranged at the bottom of the first sleeve 801, a sealing ring 803 is fixedly arranged at the top of the first sleeve 801, a third spring 807 is fixedly arranged at the top of the second limiting ring 806, a third limiting ring 810 is fixedly arranged at the outer part of the first sleeve 801, air inlets 804 are formed in the outer annular shape of the first sleeve 801 at equal angles, a second sleeve 805 is movably sleeved inside the first sleeve 801, a piston rod 808 is movably sleeved inside the second sleeve 805, a pushing plate 809 is fixedly arranged at the bottom of the piston rod 808, and a fourth spring 811 is fixedly arranged at the bottom of the pushing plate 809;
The pushing assembly 4 comprises four second dies 401, the four second dies 401 are movably mounted with four corners of the inner wall of the fixed shell 2 respectively, sliding grooves 404 are formed in the four corners of the inner wall of the fixed shell 2 respectively, first springs 405 are fixedly mounted at the bottoms of the four second dies 401 respectively, sliding blocks 403 are fixedly mounted at the outsides of the four second dies 401 respectively, second sealing gaskets 402 are fixedly mounted at the outer ends of the tops of the four second dies 401 respectively, third sealing gaskets 407 are fixedly mounted at the inner ends of the tops of the four second dies 401 respectively, and connecting plates 406 are fixedly mounted at the inner sides of the four second dies 401.
The scheme is adopted: the four second molds 401 are respectively pushed down by the cylinder 701 and the upper mold body 501, the sliding block 403 slides down inside the sliding groove 404 and compresses the first springs 405, simultaneously the tops of the four second molds 401 are kept horizontal by the upper mold body 501 and the tops of the four first molds 301, the upper mold body 501 is limited by the four first molds 301, thereby the tops of the four second molds 401 are kept horizontal by the four first molds 301, the bottoms of the upper mold body 501 are contacted with the tops of the four first molds 301 and the four second molds 401, the fifth sealing gasket 503 and the sixth sealing gasket 304 are contacted with the third sealing gasket 407, the fourth sealing gasket 502, the first sealing gasket 302 are contacted with the second sealing gasket 402, a central air conditioner display panel frame model is formed between the upper mold body 501, the second mold body 401 and the first mold 301, the fifth sealing gasket 503, the sixth sealing gasket 304, the third sealing gasket 407, the fourth sealing gasket 502, the first sealing gasket 302 and the second sealing gasket 402 seal the inside of the sealing gasket, the cylinder 701 continuously pushes the transmission plate 702 downwards, the second spring 703 is compressed, the transmission block 704 continuously moves downwards, pushes the pushing plate 809 downwards and compresses the fourth spring 811, the piston rods 808 are respectively pulled downwards in the process of the downward movement of the pushing plate 809, the gas between the first mold 301, the upper mold main body 501 and the second mold 401 is pumped out in the process of the downward movement of the piston rods 808, the gas between the first mold 301, the upper mold main body 501 and the second mold 401 enters the inside of the first sleeve 801 through the gas inlet holes 804, and meanwhile, the gas in the inside is respectively led into the inside of the first sleeve 801 through the gas inlet holes 804, the sealing structure between the first mold 301, the upper mold main body 501 and the second mold 401, the second sleeve 805 moves down into the first sleeve 801, and after the piston rod 808 and the second sleeve 805 are pulled out completely, the first sleeve 801 is pulled down by the piston rod 808 and the second sleeve 805, and the third spring 807 is stretched, at this time, the top of the sealing ring 803 and the top of the first mold 301 are kept horizontal, and the circular hole at the top of the first mold 301 is sealed by the sealing ring 803, and a negative pressure state is formed between the first mold 301, the upper mold main body 501 and the second mold 401, at this time, raw materials can be injected into the space between the upper mold main body 501 and the first mold 301 and the second mold 401 through the injection pipe 504, and meanwhile, because the space between the upper mold main body 501 and the first mold 301 and the second mold 401 is in the negative pressure state, the injected raw materials are filled between the upper mold main body 501 and the first mold 301 and the second mold 401 more uniformly, so that the border of the central air conditioner display panel is prevented from being molded unevenly, and the yield of the border of the central air conditioner display panel can be improved.
As shown in fig. 4, 5, 8 and 9, two sides of the four second molds 401 are respectively contacted with two sides of the four first molds 301, the sliding blocks 403 are respectively slid in the sliding grooves 404, the bottoms of the first springs 405 are fixedly connected with four corners of the top of the base 1, the fifth sealing gasket 503, the fourth sealing gasket 502, the sixth sealing gasket 304 and the third sealing gasket 407 are made of polytetrafluoroethylene materials, and four corners of the connecting plate 406 are respectively fixedly installed with the inner walls of the four second molds 401;
The four first gaskets 302 in combination with the four second gaskets 402 form a first rectangular ring that is also perpendicular to the fourth gasket 502, the four sixth gaskets 304 in combination with the four third gaskets 407 form a second rectangular ring that is perpendicular to the bottom of the fifth gasket 503.
The scheme is adopted: four corners of the bottom of the upper die body 501 are respectively contacted with the tops of the second dies 401 through the upper die body 501, the four second dies 401 are respectively pushed downwards through the upper die body 501, the second dies 401 are respectively moved downwards, the sliding blocks 403 slide downwards in the sliding grooves 404, the tops of the four second dies 401 and the tops of the four first dies 301 are kept horizontal, the four sixth sealing gaskets 304 and the four third sealing gaskets 407 are combined to form a second rectangular ring, the four first sealing gaskets 302 and the four second sealing gaskets 402 are combined to form a first rectangular ring, the bottom of the upper die body 501 is respectively contacted with the tops of the four first dies 301 and the four second dies 401, and the bottoms of the four first dies 301, the four second dies 401 are respectively contacted with the fifth sealing gaskets 503, the fourth sealing gaskets 502, the sixth sealing gaskets 304, the third sealing gaskets 407, the second sealing gaskets 402 and the first sealing gaskets 302, and the central air adjusting display panel frame die is formed.
As shown in fig. 2,3 and 4, circular holes are respectively formed at two ends of the top of the first mold 301, the first limiting ring 802 is fixedly mounted in the circular holes, the outer wall of the first sleeve 801 is contacted with the inner wall of the first limiting ring 802, the thickness of the sealing ring 803 is consistent with the distance between the first sleeve 801 and the first mold 301, the outer diameter value of the sealing ring 803 is consistent with the inner diameter value of the circular holes, the top of the third spring 807 is fixedly connected with the bottom of the first mold 301, the outer diameter value of the third limiting ring 810 is consistent with the inner diameter value of the circular holes, the top of the second sleeve 805 is consistent with the inner diameter value of the first sleeve 801, and the outer diameter value of the top of the piston rod 808 is consistent with the inner diameter value of the second sleeve 805.
The scheme is adopted: the transmission plate 702 is continuously pushed downwards through the air cylinder 701, the second spring 703 is compressed, the transmission block 704 continuously moves downwards, the pushing plate 809 is pushed downwards and compresses the fourth spring 811, the piston rods 808 are respectively pulled downwards in the process of the downward movement of the pushing plate 809, air between the first die 301, the upper die main body 501 and the second die 401 is pumped out in the process of the downward movement of the piston rods 808, the air between the first die 301, the upper die main body 501 and the second die 401 enters the inside of the first sleeve 801 through the air inlets 804, and meanwhile, due to the sealing structure between the first die 301, the upper die main body 501 and the second die 401, the air in the inside moves downwards into the inside of the first sleeve 801 through the piston rods 808 and the second sleeve 805 respectively, so that the air between the upper die main body 501, the first die 301 and the second die 401 is in a negative pressure state, and injection molding can be performed;
After the injection molding of the central air conditioner display panel is completed, the air cylinder 701 is recovered upwards, the transmission block 704 moves upwards, the fourth spring 811 is reset to push the piston rod 808 and the second sleeve 805 upwards, meanwhile, the third spring 807 is reset to pull the first sleeve 801 upwards, at this time, the air inlet 804 is communicated with the top of the first mold 301, the air inside the first sleeve 801 is injected into the first mold 301 through the piston rod 808 and the second sleeve 805, at this time, the frame of the central air conditioner display panel is separated from the tops of the first mold 301 and the second mold 401 under the pushing of the air, and therefore the frame of the central air conditioner display panel is convenient to take down.
The working principle and the using flow of the invention are as follows:
In the injection molding process of the frame of the display panel of the central air conditioner, firstly, the injection pipe 504 is in butt joint with the injection molding machine, at the moment, the starting cylinder 701 pushes the transmission plate 702 and the second springs 703 downwards, the second springs 703 push the upper die main body 501 in the downward moving process, four corners of the bottom of the upper die main body 501 are respectively in contact with the tops of the four second dies 401, the four second dies 401 are respectively pushed downwards by the cylinder 701 and the upper die main body 501, the sliding block 403 slides downwards in the sliding groove 404, the first springs 405 are compressed, and meanwhile, the tops of the four second dies 401 and the tops of the four first dies 301 are kept horizontal by the upper die main body 501;
The upper die body 501 is limited by the four first dies 301, so that the top of the four second dies 401 and the top of the four first dies 301 are kept horizontal, the bottom of the upper die body 501 and the four first dies 301 are contacted with the top of the four second dies 401, meanwhile, the fifth sealing gasket 503, the sixth sealing gasket 304 are contacted with the third sealing gasket 407, the fourth sealing gasket 502 and the first sealing gasket 302 are contacted with the second sealing gasket 402, a central air conditioner display panel frame model is formed among the upper die body 501, the second dies 401 and the first dies 301, and the fifth sealing gasket 503, the sixth sealing gasket 304, the third sealing gasket 407, the fourth sealing gasket 502, the first sealing gasket 302 and the second sealing gasket 402 seal the interior;
At this time, the upper mold body 501 is blocked, the air cylinder 701 continuously pushes the transmission plate 702 downwards, the second spring 703 is compressed, the transmission block 704 continuously moves downwards, pushes the pushing plate 809 downwards and compresses the fourth spring 811, the pushing plate 809 respectively pulls the piston rods 808 downwards in the process of moving downwards, air between the first mold 301, the upper mold body 501 and the second mold 401 is pumped out in the process of moving downwards by the piston rods 808, and the air between the first mold 301, the upper mold body 501 and the second mold 401 respectively enters the inside of the first sleeve 801 through the air inlets 804, and meanwhile, because of the sealing structure between the first mold 301, the upper mold body 501 and the second mold 401, the air in the inside respectively moves downwards into the inside of the first sleeve 801 through the piston rods 808 and the second sleeve 805;
Simultaneously, after the piston rod 808 and the second sleeve 805 are completely pulled out, the first sleeve 801 is pulled downwards through the piston rod 808 and the second sleeve 805, and the third spring 807 is stretched, at this time, the top of the sealing ring 803 and the top of the first mold 301 are kept horizontal, and the circular hole at the top of the first mold 301 is sealed through the sealing ring 803, and at this time, the space between the first mold 301, the upper mold body 501 and the second mold 401 is in a negative pressure state, and at this time, raw materials can be injected into the space between the upper mold body 501 and the first mold 301 and the second mold 401 through the injection pipe 504, and at the same time, because the space between the upper mold body 501 and the first mold 301 and the second mold 401 is in a negative pressure state, the injected raw materials are more uniformly filled between the upper mold body 501 and the first mold 301 and the second mold 401, so that the border of the central air conditioner display panel is prevented from being unevenly injected, and being unusable;
After the injection molding of the central air conditioner display panel is completed, the air cylinder 701 is recovered upwards, the transmission block 704 moves upwards, the fourth spring 811 is reset to push the piston rod 808 and the second sleeve 805 upwards, meanwhile, the third spring 807 is reset to pull the first sleeve 801 upwards, at the moment, the air inlet hole 804 is communicated with the top of the first mold 301, the air inside the first sleeve 801 is injected into the first mold 301 through the piston rod 808 and the second sleeve 805, and at the moment, the frame of the central air conditioner display panel is separated from the top of the first mold 301 and the top of the second mold 401 under the pushing of the air;
Meanwhile, in the recycling process of the air cylinder 701, the second spring 703 is gradually reset and pulls the upper mold main body 501 upwards, at this time, the bottom of the upper mold main body 501 is separated from the top of the second mold 401 and the top of the first mold 301, meanwhile, the first spring 405 is reset, the second mold 401 is respectively jacked up, the frame of the central empty display panel is jacked up upwards by upward movement of the second mold 401, and the frame can be taken down manually, so that the injection molding can be continuously performed by repeating the steps.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. Injection mold is used in household electrical appliances display panel production, including base (1), its characterized in that: the novel plastic mold is characterized in that a fixed shell (2) is fixedly arranged at the top of the base (1), a supporting frame (6) is fixedly arranged at the top of the base (1), a driving assembly (7) is fixedly arranged at the top of the supporting frame (6), an upper mold assembly (5) is fixedly arranged at the bottom of the driving assembly (7), lower mold assemblies (3) are respectively and fixedly arranged on four sides inside the fixed shell (2), a pushing assembly (4) is movably arranged inside the fixed shell (2) and between the two lower mold assemblies (3), and demolding assemblies (8) are respectively and movably arranged at two ends of the bottom of the lower mold assemblies (3);
The driving assembly (7) comprises an air cylinder (701), the bottom of the air cylinder (701) is fixedly arranged on the top of the supporting frame (6), a transmission plate (702) is fixedly arranged at the output end of the air cylinder (701), a second spring (703) is fixedly arranged at the bottom of the transmission plate (702), and a transmission block (704) is fixedly arranged at the bottom of the output end of the air cylinder (701);
The upper die assembly (5) comprises an upper die main body (501), the bottom of the upper die main body (501) is fixedly arranged with the bottom of the second spring (703), the left end and the right end of the top of the upper die main body (501) are respectively fixedly provided with a material injection pipe (504), the bottom of the middle part of the upper die main body (501) is fixedly provided with a fifth sealing gasket (503), and the bottom of the upper die main body (501) is fixedly provided with a fourth sealing gasket (502);
The lower die assembly (3) comprises four first dies (301), the four first dies (301) are fixedly arranged on four sides of the top of the base (1), the outer parts of the four first dies (301) are fixedly arranged on four sides of the inner wall of the fixed shell (2), first sealing gaskets (302) are respectively and fixedly arranged at the outer ends of the tops of the four first dies (301), sixth sealing gaskets (304) are respectively and fixedly arranged at the inner ends of the tops of the four first dies (301), and fixing frames (303) are fixedly arranged on the inner wall of the four first dies (301);
The demolding assembly (8) comprises a first limiting ring (802), the first limiting ring (802) is fixedly arranged inside the first mold (301), a first sleeve (801) is movably sleeved inside the first limiting ring (802), a second limiting ring (806) is fixedly arranged at the bottom of the first sleeve (801), a sealing ring (803) is fixedly arranged at the top of the first sleeve (801), a third spring (807) is fixedly arranged at the top of the second limiting ring (806), a third limiting ring (810) is fixedly arranged outside the first sleeve (801), an air inlet hole (804) is formed in the outer annular shape of the first sleeve (801) at equal angles, a second sleeve (805) is movably sleeved inside the first sleeve (801), a piston rod (808) is movably sleeved inside the second sleeve (805), a pushing plate (809) is fixedly arranged at the bottom of the piston rod (808), and a fourth spring (811) is fixedly arranged at the bottom of the pushing plate (809);
The pushing assembly (4) comprises four second dies (401), the four second dies (401) are respectively and movably mounted with four corners of the inner wall of the fixed shell (2), sliding grooves (404) are respectively formed in the four corners of the inner wall of the fixed shell (2), first springs (405) are respectively and fixedly mounted at the bottoms of the four second dies (401), sliding blocks (403) are respectively and fixedly mounted at the outsides of the four second dies (401), second sealing gaskets (402) are respectively and fixedly mounted at the outer ends of the tops of the four second dies (401), third sealing gaskets (407) are respectively and fixedly mounted at the inner ends of the tops of the four second dies (401), and connecting plates (406) are respectively and fixedly mounted at the inner sides of the four second dies (401);
circular holes are respectively formed in two ends of the top of the first die (301), the first limiting ring (802) is fixedly installed in the circular holes, the outer wall of the first sleeve (801) is in contact with the inner wall of the first limiting ring (802), the thickness of the sealing ring (803) is consistent with the distance between the first sleeve (801) and the first die (301), and the outer diameter value of the sealing ring (803) is consistent with the inner diameter value of the circular holes.
2. The injection mold for producing a display panel of an electric home appliance according to claim 1, wherein: the two sides of the four second moulds (401) are respectively contacted with the two sides of the four first moulds (301), the sliding blocks (403) respectively slide in the sliding grooves (404), the bottoms of the first springs (405) are fixedly connected with four corners of the top of the base (1), a fifth sealing gasket (503) in the upper mould assembly (5) and a fourth sealing gasket (502) in the upper mould assembly (5) are respectively made of polytetrafluoroethylene materials, and four corners of the connecting plates (406) are respectively fixedly mounted with the inner walls of the four second moulds (401).
3. The injection mold for producing a display panel of an electric home appliance according to claim 1, wherein: four first gaskets (302) and four second gaskets (402) are combined to form a first rectangular ring, the first rectangle is also vertical to a fourth gasket (502) in the upper die assembly (5), four sixth gaskets (304) and four third gaskets (407) are combined to form a second rectangular ring, and the second rectangular ring is vertical to the bottom of a fifth gasket (503) in the upper die assembly (5).
4. The injection mold for producing a display panel of an electric home appliance according to claim 1, wherein: the top of the third spring (807) is fixedly connected with the bottom of the first die (301), the outer diameter value of the third limiting ring (810) is consistent with the inner diameter value of the circular hole, the top of the second sleeve (805) is consistent with the inner diameter value of the first sleeve (801), and the outer diameter value of the top of the piston rod (808) is consistent with the inner diameter value of the second sleeve (805).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310905293.7A CN116945493B (en) | 2023-07-24 | 2023-07-24 | Injection mold for production of household appliance display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310905293.7A CN116945493B (en) | 2023-07-24 | 2023-07-24 | Injection mold for production of household appliance display panel |
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| CN116945493A CN116945493A (en) | 2023-10-27 |
| CN116945493B true CN116945493B (en) | 2024-05-07 |
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| CN116945493A (en) | 2023-10-27 |
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