CN114228045B - Injection mold of washing machine door seal - Google Patents
Injection mold of washing machine door seal Download PDFInfo
- Publication number
- CN114228045B CN114228045B CN202111330699.4A CN202111330699A CN114228045B CN 114228045 B CN114228045 B CN 114228045B CN 202111330699 A CN202111330699 A CN 202111330699A CN 114228045 B CN114228045 B CN 114228045B
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- clamping
- mold
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- injection
- washing machine
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- 238000005406 washing Methods 0.000 title claims abstract description 59
- 238000002347 injection Methods 0.000 title claims abstract description 56
- 239000007924 injection Substances 0.000 title claims abstract description 56
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000001746 injection moulding Methods 0.000 description 29
- 230000009471 action Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
- B29C45/2606—Guiding or centering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
-
- 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
- B29C45/7337—Heating or cooling of the mould using gas or steam
-
- 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
- B29C2045/645—Mould opening, closing or clamping devices using magnetic 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
- B29C45/64—Mould opening, closing or clamping devices
- B29C45/66—Mould opening, closing or clamping devices mechanical
- B29C2045/664—Mould opening, closing or clamping devices mechanical using mould clamping means operating independently from the mould closing means
-
- 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
- B29L2031/00—Other particular articles
- B29L2031/762—Household appliances
Abstract
The application relates to the field of injection molds, in particular to an injection mold of a door seal of a washing machine, which comprises an upper mold and a lower mold, wherein the top of the lower mold is provided with a central column matched with the surface of the upper mold, the periphery of the lower mold is provided with a guide column, the bottom of the lower mold is also provided with a cooling base, the injection mold further comprises an auxiliary piece taking device, the auxiliary piece taking device comprises a hollow tray, an elastic piece is connected between the tray and the lower mold, an injection cavity for molding the door seal of the washing machine is formed between the upper mold and the tray, and a mold clamping locking device for ensuring the accurate mold clamping of the upper mold and the lower mold is also matched between the upper mold and the lower mold.
Description
Technical Field
The application relates to the field of injection molds, in particular to an injection mold of a door seal of a washing machine.
Background
The special door seal for the washing machine is a special door seal for a full-automatic roller washing machine, has the main effects of sealing and damping, belongs to special parts, has large market demands, generally adopts rubber products in production, adopts an upper die, a lower die, a middle die core and a sliding block for vulcanization molding, and after vulcanization, products are wrapped outside the middle die core and clamped by an insert, and when the upper die and the middle die are lifted and separated, the sliding block of the middle die and the sliding block of the upper die are required to be separated under the action of external force, the products can be demolded, and the following problems exist in production: the existing washing machine door seal mold is not easy to demold, has no auxiliary demolding structure, has the advantages of quick abrasion of the conical surface line contact points of the upper mold and the lower mold, reduced folding precision and easy occurrence of inaccurate mold closing.
The currently disclosed Chinese patent CN201610230256.0 is a door seal mold of a washing machine, comprising an injection piece mold cavity consisting of an upper mold, a first upper mold core, a second upper mold core, a lower mold core, a middle mold and a middle core; the middle core is arranged between the upper die and the lower die, the first upper die core and the second upper die core are arranged on the upper die, the lower die core is arranged on the lower die, the middle core is arranged on the upper die through a pull rod, an upper half module is arranged on the middle die, a lower half module is arranged below the middle die, an injection nozzle is arranged on the upper die, upper die positioning pins are arranged on the upper die, the number of the upper die positioning pins is at least four, and pull rods are arranged between the upper die positioning pins; the upper half module is connected with the middle die through a T-shaped slideway; an upper built-in compression spring is arranged between the upper half module and the middle die, and a lower built-in compression spring is arranged between the lower half module and the middle plate; the injection nozzle passes through the middle mold core and is connected with the lower mold core.
According to the patent, the upper half slide block and the lower half slide block of the die are respectively opened by adopting the upper built-in compression spring and the lower built-in compression spring, compared with an external spring mode, the die has the advantages of being good in suitability, avoiding hidden danger of flying and hurting people due to loosening of an external spring bolt, avoiding hidden danger of stabbing and scratching caused by the fact that an operator is right opposite to the spring when the operator takes down a product, however, when the upper die and the lower die of the die are closed, the situation that a gap is reserved between the upper die and the lower die to cause incomplete injection cavity is easy to occur, and a device for locking the upper die and the lower die again after the die is closed is not needed, so that for the problems, a device capable of automatically ejecting a formed product when the die is opened under the condition that the die is accurately closed is ensured is needed.
Disclosure of Invention
Based on the above, it is necessary to provide an injection mold for a door seal of a washing machine aiming at the prior art, and the injection mold ensures the integrity of the injection cavity formation by matching a tray with an elastic piece and locking an upper mold and a lower mold by a mold closing and locking device, realizes the operation that the door seal of the washing machine can be automatically ejected from a central column after injection molding, and is convenient for operators to take out the door seal.
In order to solve the problems in the prior art, the application adopts the following technical scheme:
the application provides an injection mold of a washing machine door seal, which comprises an upper mold and a lower mold, wherein the top of the lower mold is provided with a central column matched with the surface of the upper mold, the periphery of the lower mold is provided with a guide column used for guiding the upper mold to be clamped, the bottom of the lower mold is also provided with a cooling base used for cooling, the injection mold further comprises an auxiliary pick-up device used for conveniently taking out the formed washing machine door seal, the auxiliary pick-up device comprises a hollow tray, the tray is sleeved on the central column, an elastic piece is connected between the tray and the lower mold, an injection cavity used for forming the washing machine door seal is formed between the upper mold and the tray after the upper mold and the lower mold are clamped, and a clamping and locking device used for ensuring the accurate clamping of the upper mold and the lower mold is also matched between the upper mold and the lower mold.
Preferably, the inner diameter of the tray is equal to the diameter of the central column, the periphery of the bottom of the tray is vertically and downwards provided with an inserting rod, the lower die is provided with a socket for inserting the inserting rod, and the inserting rod is also sleeved with a compression spring with two ends respectively fixed on the tray and the lower die, and the compression direction of the compression spring is parallel to the die closing direction of the upper die.
Preferably, the mold closing and locking device is provided with two mold closing and locking devices, the two mold closing and locking devices are symmetrically arranged on two sides of the center column, the symmetrical surfaces of the two mold closing and locking devices are the middle section of the center column, the mold closing and locking device comprises a shell, a clamping block arranged in the shell and a clamping piece arranged on the upper mold, the center column is provided with a containing opening for installing the shell, a first cavity and a second cavity are formed in the shell through the clamping block, the center column is provided with a through opening for inserting the clamping piece into the second cavity, and the first cavity and the second cavity are respectively internally provided with an ejection mechanism for releasing the locking state of the clamping piece and a supporting mechanism for assisting the clamping piece to move out of the clamping block.
Preferably, the clamping block is of a rectangular block structure, one end, close to the through hole, of the clamping block is provided with a slope, one end, far away from the slope, of the clamping block is provided with a notch, and a contact switch for triggering the clamping piece is further arranged in the notch.
Preferably, the clamping piece is specifically an elastic buckle, the length of the elastic buckle is equal to that of the clamping block, the non-clamping end of the elastic buckle is fixedly arranged on the upper die through a fixing column, and the length direction of the elastic buckle is parallel to the die closing direction of the upper die.
Preferably, the ejection mechanism comprises a push rod, a push opening is formed in the clamping block, the axial direction of the push opening is perpendicular to the insertion direction of the elastic buckle, one end of the push rod is inserted into the push opening, the other end of the push rod is provided with a tip with the diameter larger than that of the push rod, a buffer spring is further sleeved on the push rod, two ends of the buffer spring are respectively fixed on the tip of the push rod and the clamping block, an air bag is further arranged between the tip of the push rod and the inner wall of the shell, the edge of the air bag is fixed on the shell, and the surface of the air bag is attached to the tip of the push rod.
Preferably, the edge of the central column, which is close to the central column, is provided with an annular air cavity along the circumferential direction of the central column, the surface of the shell is provided with an air vent for the mutual communication between the first cavity and the annular air cavity, and the cooling base is also provided with a cold air pipeline communicated with the annular air cavity.
Preferably, the supporting mechanism comprises a supporting block, a slideway is vertically arranged at the bottom of the shell, the supporting block can move in the slideway towards the direction of the elastic buckle, the end part of the supporting block, which faces the elastic buckle, is also provided with a supporting part which can enable the clamping end of the elastic buckle to smoothly leave the notch, and a driving piece for driving the supporting block to move is also arranged in the slideway.
Preferably, the driving member is specifically a pair of first electromagnet and second electromagnet with magnetic force, the first electromagnet is fixedly arranged at the bottom of the shell, the second electromagnet is fixedly arranged at one end of the supporting block away from the supporting part, and the movement of the supporting block in the slideway is that the magnetic force is changed between the first electromagnet and the second electromagnet.
Preferably, the center of the upper die is provided with an injection molding opening from top to bottom in a penetrating way, the end part, which is fit with the surface of the upper die, of the central column is a conical surface, a plurality of circulation openings which are communicated in the injection molding cavity are formed between the surface of the upper die and the conical surface of the central column, and an injection molding pipe used for injecting injection molding liquid is further arranged in the injection molding opening.
Compared with the prior art, the application has the following beneficial effects:
1. according to the application, through the matching of the tray and the elastic piece, the operation that the washing machine door seal can be automatically ejected from the central column after injection molding is realized, the washing machine door seal is convenient to take out by an operator, and the upper die and the lower die are locked by the die clamping locking device, so that the integrity of the injection molding cavity is ensured, and the injection molding of the washing machine door seal is successfully realized.
2. The application realizes the formation of the injection cavity through the cooperation of the upper die and the central column after the tray is pressed down by the pressure of the upper die on the tray, realizes the operation of jacking the washing machine door seal by the tray under the action of the elastic piece after the upper die is opened, and is convenient for operators to take the piece.
3. According to the application, through the matching of the clamping piece on the upper die and the clamping block on the central column, the upper die is fastened on the lower die after being clamped on the lower die, so that the deviation of the formation of an injection cavity after the upper die and the lower die are clamped is avoided, and the qualification rate of injection molding of the door seal of the washing machine is improved.
4. According to the application, the clamping piece is locked by matching the structure of the clamping block with the clamping piece, so that the upper die is locked.
5. According to the application, through the elastic structure of the elastic buckle, the notch is clamped, the folding precision between the upper die and the lower die is improved, and the forming of the injection cavity is ensured to be capable of forming a qualified washing machine door seal.
6. According to the application, through the cooperation between the air bag and the push rod, the state that the elastic buckle releases the clamping notch is realized, and the upper die can be opened smoothly.
7. The application realizes the cooling of the door seal of the washing machine and simultaneously leads the elastic buckle to exit the notch of the clamping block through the cool air.
8. According to the application, the elastic buckle can smoothly withdraw from the first cavity through the support of the support block on the elastic buckle.
Drawings
FIG. 1 is a schematic perspective view of an embodiment;
FIG. 2 is a top view of an embodiment;
FIG. 3 is a cross-sectional view at A-A of FIG. 2;
FIG. 4 is a cross-sectional view at B-B of FIG. 2;
FIG. 5 is an enlarged schematic view at C of FIG. 3;
FIG. 6 is an enlarged schematic view at D of FIG. 4;
FIG. 7 is an exploded perspective view of an embodiment;
fig. 8 is a front view of fig. 7;
fig. 9 is a schematic perspective view of the upper and lower molds;
fig. 10 is an exploded perspective view of fig. 9.
The reference numerals in the figures are:
1-upper die; 1 A-An injection molding port; 1 b-a flow-through port; 1 c-injection molding a tube;
2-lower die; 2 A-An injection molding cavity; 2 b-a guide post; 2 c-a central column; 2c 1-annular air cavities; 2c 2-conical surface;
3-cooling the base; 3 A-A cold air duct;
4-an auxiliary pick-off unit; 4 a-trays; 4a 1-a plunger; 4 b-an elastic member; 4b 1-compression springs;
5-a die closing and locking device; 5 A-A housing; 5a 1-a first cavity; 5a 2-a second cavity; 5a 3-vent; 5 b-a clamping block; 5b 1-ramp; 5b 2-notch; 5b 3-contact switch; 5 c-a clamping piece; 5c 1-elastic snap; 5c 2-fixing columns; 5 d-an ejection mechanism; 5d 1-pushing rod; 5d 2-buffer springs; 5d 3-balloon; 5 e-a supporting mechanism; 5e 1-supporting blocks; 5e 11-a support; 5e 2-drive; 5e 21-a first electromagnet; 5e 22-a second electromagnet;
6-washing machine door seal.
Detailed Description
The application will be further described in detail with reference to the drawings and the detailed description below, in order to further understand the features and technical means of the application and the specific objects and functions achieved.
As shown in fig. 1-10, the present application provides:
the utility model provides an injection mold of washing machine door seal, including last mould 1 and bed die 2, the top of bed die 2 has a center post 2c that agrees with the surface of last mould 1, all be equipped with around bed die 2 and be used for guiding the guide post 2b of last mould 1 compound die, and the bottom of bed die 2 still is equipped with one and is used for playing the cooling base 3 of cooling effect, still including being used for conveniently taking out the supplementary pick-up device 4 of washing machine door seal 6 after the shaping, this supplementary pick-up device 4 is including a tray 4a that is hollow structure, tray 4a cover is established on center post 2c, be connected with elastic component 4b between tray 4a and the bed die 2, and be formed with the injection cavity 2a that supplies washing machine door seal 6 shaping between last mould 1 and the tray 4a after last mould 1 and the bed die 2 compound die, still cooperate and be equipped with between last mould 1 and the bed die 2 and be used for guaranteeing the compound die locking device 5 of the accurate compound die of both.
Based on the above embodiment, the existing door seal 6 of the washing machine is not easy to be demolded, has no auxiliary demolding structure, has quick wear of the line contact points of the conical surfaces of the upper die and the lower die, reduces folding precision, is easy to cause inaccurate die assembly, and aims to solve the technical problems of ensuring accurate die assembly between the upper die 1 and the lower die 2 and facilitating the taking of a piece during die opening, in the process of molding the door seal 6 of the washing machine, the upper die 1 is pressed on the lower die 2 under the guidance of the guide post 2b, when the upper die 1 is pressed on the lower die 2, the tray 4a is pressed on the surface of the lower die 2 under the action of the elastic piece 4b, the resultant force between the upper die 1 and the tray 4a and the center post 2c forms an injection cavity 2a, and when the upper die 1 and the lower die 2 are folded, the upper die 1 and the lower die 2 are fastened together through the die clamping locking device 5, the problem that deviation exists in the injection cavity 2a caused by the movement of the upper die 1 is avoided, after the upper die 1 and the lower die 2 are precisely clamped, injection liquid is filled into the injection cavity 2a, a washing machine door seal 6 is formed in the injection cavity 2a, the washing machine door seal 6 is adhered to the lower die 2 and is not easy to take out because the washing machine door seal 6 is made of rubber, the lower die 2 is cooled by the cooling base 3, the washing machine door seal 6 is cooled by the contact of the lower die 2, the upper die 1 is lifted after the clamping and locking device 5 releases the locking state between the upper die 1 and the lower die 2, after the upper die 1 and the lower die 2 are opened, the tray 4a is sprung upwards due to the acting force of the elastic piece 4b, the cooled washing machine door seal 6 is ejected on the central column 2c under the jacking action of the tray 4a, the top edge of the washing machine door seal 6 protrudes out of the central column 2c, the operator eventually holds the top edge of the washer door seal 6 and removes it.
Further:
the inner diameter of the tray 4a is equal to the diameter of the central column 2c, the periphery of the bottom of the tray 4a is vertically and downwards provided with an inserting rod 4a1, the lower die 2 is provided with a socket for inserting the inserting rod 4a1, the inserting rod 4a1 is also sleeved with a compression spring 4b1, two ends of the compression spring 4b1 are respectively fixed on the tray 4a and the lower die 2, and the compression direction of the compression spring 4b1 is parallel to the die closing direction of the upper die 1.
Based on the above embodiment, in order to solve the technical problem of how to jack up the washing machine door seal 6 by the elastic member 4b, the tray 4a is pressed to the surface of the lower mold 2 in the process of closing the upper mold 1, and the tray 4a is coaxially sleeved on the center post 2c, so that the tray 4a can move along the axis direction of the center post 2c, the tray 4a is horizontally pressed onto the lower mold 2, the injection cavity 2a is formed between the upper mold 1 and the tray 4a and the center post 2c, the injection liquid is injected into the injection cavity 2a, the washing machine door seal 6 is molded, after the upper mold 1 is opened, the tray 4a is then sprung up to the original position under the elastic force of the compression spring 4b1, the top edge of the washing machine door seal 6 exceeds the top edge of the center post 2c, and the top edge of the washing machine door seal 6 is lifted by clamping the operator.
Further:
the mold clamping and locking devices 5 are two, the two mold clamping and locking devices 5 are symmetrically arranged on two sides of the center column 2c, the symmetrical surfaces of the two mold clamping and locking devices 5 are middle sections of the center column 2c, the mold clamping and locking devices 5 comprise a shell 5a, a clamping block 5b arranged in the shell 5a and a clamping piece 5c arranged on the upper mold 1, a containing opening for installing the shell 5a is formed in the center column 2c, a first cavity 5a1 and a second cavity 5a2 are formed in the shell 5a through the clamping block 5b, a through opening for inserting the clamping piece 5c into the second cavity 5a2 is formed in the center column 2c, and an ejection mechanism 5d for releasing the locking state of the clamping piece 5c and a supporting mechanism 5e for assisting the clamping piece 5c to move out of the clamping piece 5b are further arranged in the first cavity 5a1 and the second cavity 5a2 respectively.
Based on the above embodiment, in order to solve the technical problem how to close the upper mold 1 and the lower mold 2 accurately by the mold closing and locking device 5, when the upper mold 1 is pressed on the lower mold 2, the clamping piece 5c on the upper mold 1 is inserted into the second cavity 5a2 of the housing 5a through the through opening, as the upper mold 1 is completely pressed on the lower mold 2, the clamping piece 5c is also clamped on the clamping block, the upper mold 1 and the lower mold 2 cannot be opened from the lower mold 2 in the injection molding process by the cooperation of the clamping piece 5c and the clamping block, the problem that deviation occurs in the formation of the injection molding cavity 2a does not occur, after the door seal 6 of the washing machine is injection molded, the lower mold 2 is cooled by the cooling base 3, the molded door seal 6 of the washing machine is cooled, the upper mold 1 can be opened accordingly, the ejection mechanism 5d ejects the clamping piece 5c out of the clamping block, and after the clamping piece 5c is separated from the clamping block 5b, the supporting mechanism 5e supports the clamping piece 5c from the lower mold 2 in a supporting state immediately, and the door seal 6 is opened, and finally the door seal 6 is completed.
Further:
the clamping block 5b is of a rectangular block structure, one end, close to the through hole, of the clamping block 5b is provided with a slope 5b1, one end, far away from the slope 5b1, of the clamping block 5b is provided with a notch 5b2, and a contact switch 5b3 for triggering the clamping piece 5c is further arranged in the notch 5b 2.
Based on the above embodiment, in order to solve the technical problem how to clamp the clamping piece 5c on the clamping block 5b, after the clamping piece 5c is inserted into the second cavity 5a2, the clamping piece 5c moves down along the slope 5b1, and as the end of the clamping piece 5c arrives at the notch 5b2, the end of the clamping piece 5c is clamped into the notch 5b2, the contact switch 5b3 in the notch 5b2 is triggered under the pressure of the clamping piece 5c, which indicates that the locking between the upper mold 1 and the lower mold 2 is completed, the injection cavity 2a is also completely formed, and then the injection molding liquid is injected into the injection molding cavity 2a to form the door seal 6 of the washing machine.
Further:
the clamping piece 5c is specifically an elastic clamping buckle 5c1, the length of the elastic clamping buckle 5c1 is equal to that of the clamping block 5b, the non-clamping end of the elastic clamping buckle 5c1 is fixedly arranged on the upper die 1 through a fixing column 5c2, and the length direction of the elastic clamping buckle 5c1 is parallel to the die clamping direction of the upper die 1.
Based on the above embodiment, since the clamping piece 5c is the elastic buckle 5c1, when the elastic buckle 5c1 moves down along the slope 5b1 on the clamping block 5b, the elastic buckle 5c1 changes from the original state to the state of being extruded and deformed, and as the clamping end of the elastic buckle 5c1 is clamped into the notch 5b2 on the clamping block 5b, the elastic buckle 5c1 changes back to the original state, and as the clamping end of the elastic buckle 5c1 is limited in the notch 5b2, the upper die 1 cannot be moved out on the lower die 2, and after the injection molding cavity 2a is used for injection molding the door seal 6 of the washing machine, the elastic buckle 5c1 can leave the clamping block 5b through the ejection mechanism 5d and the supporting mechanism 5e, and finally the door seal 6 of the washing machine is taken out from the upper die 1.
Further:
the ejector mechanism 5d comprises a push rod 5d1, a push opening is formed in the clamping block 5b, the axial direction of the push opening is perpendicular to the insertion direction of the elastic buckle 5c1, one end of the push rod 5d1 is inserted into the push opening, the other end of the push rod 5d1 is provided with a tip with the diameter larger than that of the push rod 5d1, the push rod 5d1 is further sleeved with a buffer spring 5d2, two ends of the buffer spring 5d2 are respectively fixed on the tip of the push rod 5d1 and the clamping block 5b, an air bag 5d3 is further arranged between the tip of the push rod 5d1 and the inner wall of the shell 5a, the edge of the air bag 5d3 is fixed on the shell 5a, and the surface of the air bag 5d3 is further attached to the tip of the push rod 5d 1.
Based on the above embodiment, in order to solve the technical problem that how the clamping end of the elastic buckle 5c1 leaves the notch 5b2 of the clamping block 5b, after the injection molding of the door seal 6 of the washing machine, the air bag 5d3 expands to push the push rod 5d1, the push rod 5d1 is pushed down to pass through the push opening and enter the second cavity 5a2, the push rod 5d1 is pushed continuously after contacting the elastic buckle 5c1, the elastic buckle 5c1 is pushed down by the push rod 5d1 and then bounces away from the clamping block 5b, the clamping end of the elastic buckle 5c1 leaves the notch 5b2 of the clamping block 5b, after the supporting mechanism 5e keeps the state that the elastic buckle 5c1 is pushed away, the air bag 5d3 returns to the original state, the push rod 5d1 also returns to the first cavity 5a1 under the action of the buffer spring 5d2, and then the upper die 1 can open after the elastic buckle 5c1 is separated from the clamping block 5 b.
Further:
an annular air cavity 2c1 is formed in the edge, close to the center column 2c, of the center column 2c along the circumferential direction of the center column 2c, an air vent 5a3 for communicating the first cavity 5a1 with the annular air cavity 2c1 is formed in the surface of the shell 5a, and a cold air pipeline 3a communicated with the annular air cavity 2c1 is further formed in the cooling base 3.
Based on the above embodiment, in order to solve the technical problem how to push the push rod 5d1 by the air bag 5d3, after the injection molding of the washing machine door seal 6 in the injection cavity 2a, since the washing machine door seal 6 is of a rubber structure, it will adhere to the surface of the injection cavity 2a, so that it needs to be cooled and then taken out, after the air conditioner is filled into the annular air cavity 2c1 through the air conditioner channel, the annular air cavity 2c1 is filled with the air conditioner, and since the first cavity 5a1 is communicated with the annular air cavity 2c1 through the air vent 5a3, the air conditioner also fills the first cavity 5a1, the air bag 5d3 expands under the filling of the air conditioner, the push rod 5d1 is pushed accordingly, after the washing machine door seal 6 is cooled, the air conditioner also stops to be introduced accordingly, and the push rod 5d1 returns to the first cavity 5a1 again, so as not to hinder the exit of the elastic clamping block.
Further:
the supporting mechanism 5e comprises a supporting block 5e1, a slide way is vertically arranged at the bottom of the shell 5a, the supporting block 5e1 can move in the slide way towards the direction of the elastic buckle 5c1, the end part of the supporting block 5e1, which faces the elastic buckle 5c1, is also provided with a supporting part 5e11 which can enable the clamping end of the elastic buckle 5c1 to smoothly leave the notch 5b2, and a driving piece 5e2 for driving the supporting block 5e1 to move is also arranged in the slide way.
Based on the above embodiment, in order to solve the technical problem how the elastic buckle 5c1 is smoothly withdrawn from the second cavity 5a2 under the action of the supporting mechanism 5e, after the elastic buckle 5c1 is pushed out of the notch 5b2 by the push rod 5d1, before the push rod 5d1 returns back to the first cavity 5a1, the supporting block 5e1 moves to the clamping end of the elastic buckle 5c1 under the driving of the driving piece 5e2, the supporting portion 5e11 on the supporting block 5e1 supports the clamping end of the elastic buckle 5c1, and after the push rod 5d1 returns to the first cavity 5a1, the elastic buckle 5c1 is not blocked in the notch 5b2 again.
Further:
the driving member 5e2 is specifically a pair of a first electromagnet 5e21 and a second electromagnet 5e22 having magnetic force, the first electromagnet 5e21 is fixedly disposed at the bottom of the housing 5a, the second electromagnet 5e22 is fixedly disposed at one end of the supporting block 5e1 away from the supporting portion 5e11, and the movement of the supporting block 5e1 in the slideway is by changing the magnitude of the magnetic force between the first electromagnet 5e21 and the second electromagnet 5e 22.
Based on the above embodiment, when the driving member 5e2 drives the supporting block 5e1 to move, the current is increased between the first electromagnet 5e21 and the second electromagnet 5e22, so that the magnetic force of the two is increased, and the supporting block 5e1 moves to the clamping end of the elastic buckle 5c1 to support the clamping end of the elastic buckle 5c1 under the movement of the second electromagnet 5e 22.
Further:
the center of the upper die 1 is provided with an injection molding opening 1a in a penetrating way from top to bottom, the end part, which is fit with the surface of the upper die 1, of the central column 2c is a conical surface 2c2, a plurality of circulation openings 1b which are communicated with the injection molding cavity 2a are formed between the surface of the upper die 1 and the conical surface 2c2 of the central column 2c, and an injection molding pipe 1c used for injecting injection molding liquid is further arranged in the injection molding opening 1 a.
Based on the above embodiment, after the injection cavity 2a is formed, the injection liquid is poured into the plurality of circulation ports 1b through the injection pipe 1c along the injection ports 1a, the injection liquid flows into the injection cavity 2a along the plurality of injection ports 1a until the injection cavity 2a is filled with the injection liquid, the washing machine door seal 6 is finally injection molded, and after the washing machine door seal 6 is taken out, the excessive part is trimmed by an operator, so that the qualified washing machine door seal 6 is finally obtained.
According to the application, through the matching of the tray 4a and the elastic piece 4b, the operation that the washing machine door seal 6 can be automatically ejected from the central column 2c after injection molding is realized, the washing machine door seal is convenient for an operator to take out, and the upper die 1 and the lower die 2 are locked through the die clamping locking device 5, so that the integrity of the formation of the injection molding cavity 2a is ensured, and the injection molding of the washing machine door seal 6 is successfully realized.
The foregoing examples merely illustrate one or more embodiments of the application, which are described in greater detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (5)
1. The utility model provides an injection mold of washing machine door seal, including last mould (1) and bed die (2), the top of bed die (2) has a center post (2 c) that fits with last mould (1) surface, all be equipped with around bed die (2) one guide post (2 b) that are used for guiding last mould (1) compound die, and the bottom of bed die (2) still is equipped with one and is used for playing cooling effect's cooling base (3), a serial communication port, still include be used for conveniently taking out washing machine door seal (6) after the shaping auxiliary pick-up device (4), this auxiliary pick-up device (4) is including a tray (4 a) that is hollow structure, tray (4 a) cover is established on center post (2 c), be connected with elastic component (4 b) between tray (4 a) and bed die (2), and be formed with between last mould (1) and tray (4 a) and supply injection cavity (2 a) that washing machine door seal (6) formed after last mould (1) and bed die (2) compound die, be equipped with between two and be used for guaranteeing that the cooperation is accurate locking device (5) still is used for locking down;
the mold clamping and locking devices (5) are two, the two mold clamping and locking devices (5) are symmetrically arranged on two sides of the center column (2 c), the symmetrical surfaces of the two mold clamping and locking devices (5) are the middle section of the center column (2 c), the mold clamping and locking devices (5) comprise a shell (5 a) and a clamping block (5 b) arranged in the shell (5 a) and a clamping piece (5 c) arranged on the upper mold (1), the center column (2 c) is provided with a containing opening for installing the shell (5 a), a first cavity (5 a 1) and a second cavity (5 a 2) are formed in the shell (5 a) through the clamping block (5 b), the center column (2 c) is provided with a through hole for the clamping piece (5 c) to be inserted into the second cavity (5 a 2), and the first cavity (5 a 1) and the second cavity (5 a 2) are internally provided with a clamping mechanism (5 d) for releasing the clamping state of the clamping piece (5 c) and an auxiliary mechanism (5 e) for moving out the clamping piece (5 e) respectively;
the clamping block (5 b) is of a rectangular block structure, one end, close to the through hole, of the clamping block (5 b) is provided with a slope (5 b 1), one end, far away from the slope (5 b 1), of the clamping block (5 b) is provided with a notch (5 b 2), and a contact switch (5 b 3) for triggering the clamping piece (5 c) is further arranged in the notch (5 b 2);
the clamping piece (5 c) is specifically an elastic buckle (5 c 1), the length of the elastic buckle (5 c 1) is equal to that of the clamping block (5 b), the non-clamping end of the elastic buckle (5 c 1) is fixedly arranged on the upper die (1) through a fixing column (5 c 2), and the length direction of the elastic buckle (5 c 1) is parallel to the die clamping direction of the upper die (1);
the ejection mechanism (5 d) comprises a push rod (5 d 1), a push opening is formed in the clamping block (5 b), the axial direction of the push opening is perpendicular to the insertion direction of the elastic buckle (5 c 1), one end of the push rod (5 d 1) is inserted into the push opening, the other end of the push rod (5 d 1) is provided with a tip with the diameter larger than that of the push rod (5 d 1), the push rod (5 d 1) is further sleeved with a buffer spring (5 d 2), two ends of the buffer spring (5 d 2) are respectively fixed on the tip of the push rod (5 d 1) and the clamping block (5 b), an air bag (5 d 3) is further arranged between the tip of the push rod (5 d 1) and the inner wall of the shell (5 a), and the edge of the air bag (5 d 3) is fixed on the shell (5 a) and the surface of the air bag (5 d 3) is further attached to the tip of the push rod (5 d 1);
the supporting mechanism (5 e) comprises a supporting block (5 e 1), a slide way is vertically arranged at the bottom of the shell (5 a), the supporting block (5 e 1) can move in the slide way towards the direction of the elastic buckle (5 c 1), the end part of the supporting block (5 e 1) facing the elastic buckle (5 c 1) is further provided with a supporting part (5 e 11) which can enable the clamping end of the elastic buckle (5 c 1) to smoothly leave the notch (5 b 2), and a driving piece (5 e 2) used for driving the supporting block (5 e 1) to move is further arranged in the slide way.
2. The injection mold of a door seal of a washing machine according to claim 1, wherein the inner diameter of the tray (4 a) is equal to the diameter of the central column (2 c), the periphery of the bottom of the tray (4 a) is vertically provided with a plug rod (4 a 1) downwards, the lower mold (2) is provided with a socket for inserting the plug rod (4 a 1), the plug rod (4 a 1) is further sleeved with a compression spring (4 b 1) with two ends respectively fixed on the tray (4 a) and the lower mold (2), and the compression direction of the compression spring (4 b 1) is parallel to the mold closing direction of the upper mold (1).
3. The injection mold of a washing machine door seal according to claim 1, wherein an annular air cavity (2 c 1) is formed in the edge of the center column (2 c) close to the center column (2 c) along the circumferential direction of the center column (2 c), an air vent (5 a 3) for communicating the first cavity (5 a 1) with the annular air cavity (2 c 1) is formed in the surface of the shell (5 a), and a cold air pipeline (3 a) communicated with the annular air cavity (2 c 1) is further formed in the cooling base (3).
4. An injection mould for a door seal of a washing machine according to claim 1, characterized in that the driving member (5 e 2) is embodied as a pair of a first electromagnet (5 e 21) and a second electromagnet (5 e 22) having magnetic force, the first electromagnet (5 e 21) is fixedly arranged at the bottom of the housing (5 a), the second electromagnet (5 e 22) is fixedly arranged at one end of the supporting block (5 e 1) far away from the supporting portion (5 e 11), and the movement of the supporting block (5 e 1) in the slideway is the magnitude of the magnetic force changed between the first electromagnet (5 e 21) and the second electromagnet (5 e 22).
5. The injection mold of a washing machine door seal according to claim 1, wherein an injection port (1 a) is formed in the center of the upper mold (1) from top to bottom, the end portion of the central column (2 c) which is engaged with the surface of the upper mold (1) is a conical surface (2 c 2), a plurality of flow ports (1 b) which are communicated with the injection cavity (2 a) are formed between the surface of the upper mold (1) and the conical surface (2 c 2) of the central column (2 c), and an injection pipe (1 c) for injecting injection liquid is further arranged in the injection port (1 a).
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| CN202111330699.4A CN114228045B (en) | 2021-11-11 | 2021-11-11 | Injection mold of washing machine door seal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330699.4A CN114228045B (en) | 2021-11-11 | 2021-11-11 | Injection mold of washing machine door seal |
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| CN114228045B true CN114228045B (en) | 2023-12-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208645896U (en) * | 2018-07-20 | 2019-03-26 | 扬州和镪金属制品有限公司 | A kind of injection mould processing easy mold release device |
| CN208854934U (en) * | 2018-08-16 | 2019-05-14 | 深圳市博瑞模型技术有限公司 | A kind of injection mold ejecting mechanism |
| CN211334350U (en) * | 2019-12-03 | 2020-08-25 | 苏州锦和鑫塑胶有限公司 | Injection mold device capable of achieving rapid forming |
| CN214324004U (en) * | 2020-11-03 | 2021-10-01 | 无锡科宇模具有限公司 | Washing machine door seals high-efficient forming die in double-cavity |
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