CN116252440A - Injection molding mold for washing machine accessories and application method thereof - Google Patents
Injection molding mold for washing machine accessories and application method thereof Download PDFInfo
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- CN116252440A CN116252440A CN202310252752.6A CN202310252752A CN116252440A CN 116252440 A CN116252440 A CN 116252440A CN 202310252752 A CN202310252752 A CN 202310252752A CN 116252440 A CN116252440 A CN 116252440A
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- injection molding
- ejector rod
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 72
- 238000005406 washing Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000945 filler Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 239000012778 molding material Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 230000008602 contraction Effects 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011499 joint compound Substances 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
- B29C45/332—Mountings or guides therefor; Drives therefor
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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
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an injection molding die for washing machine accessories and a use method thereof, wherein a movable core is arranged, when a model is demolded, the movable core can move towards the inner side of the upper side, so that the model is not influenced, and a bulge on a telescopic die is creatively used, and can shrink into the movable core when the model is demolded, so that the convenience degree of the model is further improved; the expansion and contraction of the bulge are linked with the push-pull mechanism through the bulge expansion and contraction linkage mechanism, and the expansion and contraction can be realized in the up-and-down movement process of the push plate; and metal joint compound is coated on the gap of the ejector rod hole, the gap of the contact surface of the movable core and the fixed core and the gap of the contact surface of the extension block of the movable core, so that the flash influence during forming at the positions is greatly reduced, and the forming effect of the die is better.
Description
Technical Field
The invention belongs to the technical field of washing machine accessory molds, and particularly relates to an injection molding mold for washing machine accessories and a use method thereof.
Background
The upper end surrounding frame of the washing machine accessory such as the single-drum impeller washing machine is often manufactured by injection molding, however, the existing injection molding mold is manufactured by setting a fixed mold core by injection molding, but the structure makes the demolding of the injection molding part after molding more troublesome, for example, the rear end of the upper end surrounding frame of the single-drum impeller washing machine is connected with the mold core more precisely due to more convex structures, and more time is required for disassembling the injection molding part after demolding, which is very inconvenient; and the problem of flash often exists due to the abrasion of the die or the problem of processing precision when the die is used for a long time, so that the processed product has poor aesthetic property.
Disclosure of Invention
The invention aims to provide an injection molding die for washing machine accessories and a use method thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the injection molding die for the washing machine accessories comprises a movable die plate, a fixed die seat plate, a supporting plate, a cushion block and a movable die seat plate which are sequentially arranged, wherein the fixed die plate is fixedly connected with the fixed die seat plate, the movable die plate, the supporting plate, the cushion block and the movable die seat plate are fixedly connected, a push plate and a push plate fixing plate are arranged between the supporting plate and the movable die seat plate and positioned at the inner side of the cushion block, a fixed die core is arranged at the inner side of the fixed die plate, and a movable die core is arranged at the inner side of the movable die plate;
the movable model core comprises a fixed core, two movable cores and a fixed core extension block arranged between the two movable cores, the interface between the movable cores and the fixed core is obliquely arranged, the movable cores drive the extension interface to move through a push-pull mechanism, the push-pull mechanism comprises a push-pull plate, a push-pull plate guide sleeve, a lower connecting sleeve and a lower connecting sleeve guide rod, the upper end of the push-pull plate is connected with the movable cores, the push-pull plate movably penetrates through the push-pull plate guide sleeve, the lower connecting sleeve guide rod is rotatably connected with the lower connecting sleeve, the lower connecting sleeve guide rod horizontally penetrates through and is in sliding connection with the lower connecting sleeve, the push-pull plate guide sleeve is arranged on a supporting plate, a movable cavity of the lower connecting sleeve is arranged on the push plate, the lower connecting sleeve guide rod is horizontally arranged in the movable cavity, and when the push plate moves upwards to drive the movable cores to move upwards, and meanwhile the lower connecting sleeve moves inwards along the lower connecting sleeve guide rod;
the fixed core extension block comprises a fixed core extension block body, a fixed core extension block inner cavity, a cavity side runner, a fixed core extension block inner injection molding channel and a fixed core extension block inner ejector rod, wherein the fixed core extension block inner cavity is formed in the outer side of the upper end face of the fixed core extension block body, the cavity side runners are arranged on two sides of the fixed core extension block inner cavity, the fixed core extension block inner injection molding channel is arranged on the inner side of the upper end face of the fixed core extension block body, and the fixed core extension block inner injection molding channel obliquely downwards penetrates through the fixed core extension block body and extends into the fixed core extension block inner cavity.
Preferably, a cavity upper sealing plate is arranged on the upper side of the fixed core extension block body, and the cavity upper sealing plate is arranged on the fixed mold core.
Preferably, the injection molding channel in the fixed core extension block is arranged to be an injection molding channel inner hole at a section of the fixed core extension block body, the shape of the injection molding channel inner hole is arranged to be a truncated cone shape with gradually reduced aperture along the flowing direction, and the injection molding channel in the fixed core extension block is internally provided with a fixed core extension block inner ejector rod.
Preferably, the outer side surface of the movable core is movably provided with a plurality of bulges, the bulges are commonly connected to the side wall of the movable plate in the movable core, the inner side of the movable plate is connected with a connecting plate, and the connecting plate is obliquely provided with a second waist-shaped hole; the upper end of the push-pull plate is connected in the movable core through a pin, a first waist-shaped hole is formed in the push-pull plate at the position of the pin, a cylindrical mounting plate is arranged at the upper end of the pin, a cylinder is mounted at the tail end of the cylindrical mounting plate, and the cylinder is arranged in a second waist-shaped hole.
Preferably, the outside of the movable core is provided with an outer baffle, the inner side surface of the outer baffle is provided with a movable top plate, and the lower end of the top plate is connected with a push plate.
Preferably, the movable core supporting rod is further arranged on the outer baffle plate.
Preferably, the movable core supporting rod is in threaded connection with the outer baffle, and a supporting rod sleeve is arranged at the inner end of the movable core supporting rod.
Preferably, the ejector rod in the fixed core extension block comprises an upper ejector rod, a lower ejector rod and an ejector rod sleeve, the upper ejector rod and the lower ejector rod are sleeved in the ejector rod sleeve in a sliding manner, a clamping block is movably arranged in the ejector rod sleeve, the lower end face of the clamping block is an inclined plane, the upper end face of the clamping block is a plane, a spring is arranged on the outer side of the clamping block, an upper ejector rod supporting block is arranged at the lower end of the upper ejector rod, the lower end face of the upper ejector rod supporting block is flush with the lowest end of the inclined plane of the clamping block, the ejector rod sleeve is arranged on a supporting plate, and the lower ejector rod is arranged on the pushing plate.
The application method of the injection molding mold for the washing machine accessories comprises the following steps:
1) Opening the mould, coating a gap filler on a mandril hole gap of the mould, a gap between a movable core and a fixed core contact surface and a gap between a movable core and a fixed core extension block contact surface, scraping off redundant gap filler outside the gap, starting a heat supply system of the mould, and rapidly forming the gap filler at high temperature;
2) Closing the mold, inputting the prepared injection molding material into the mold, and opening the mold again after the material is molded;
3) Starting the cylinder, wherein the cylinder pushes the push plate fixing plate to move upwards, when the push plate moves upwards, the cylinder is driven to move upwards by the cylinder mounting plate, the cylinder extrudes the second waist-shaped hole, and the movable plate is driven by the connecting plate to enable the bulge to shrink into the movable core;
4) When the push-pull plate continues to move upwards, the lower end of the first waist-shaped hole props against the pin, so that the whole movable core is driven to move upwards; the push plate fixing plate drives the push plate to move upwards, so that the push plate pushes the movable core to move obliquely upwards along the inclined plane;
5) Simultaneously, the upper end of lower ejector pin contacts the lower terminal surface of last ejector pin butt piece, and ejector pin, roof in the ejector pin of the injection molding on the push pedal, the fixed core extension piece upwards move jointly, jack-up drawing of patterns with the injection molding on the movable mould core, alright take off the injection molding.
Preferably, the ejector rod structure of the injection molding part is the same as the ejector rod structure in the fixed core extension block, and the lower end structure of the top plate is the same as the ejector rod structure in the fixed core extension block.
The invention has the technical effects and advantages that: by arranging the movable core, the movable core can move towards the inner side of the upper side when the mold is demolded, so that the mold is not influenced, and the bulge on the telescopic mold is creatively used and can shrink into the movable core when the mold is demolded, so that the convenience degree of mold demolding is further improved; the expansion and contraction of the bulge are linked with the push-pull mechanism through the bulge expansion and contraction linkage mechanism, and the expansion and contraction can be realized in the up-and-down movement process of the push plate; and metal joint compound is coated on the gap of the ejector rod hole, the gap of the contact surface of the movable core and the fixed core and the gap of the contact surface of the extension block of the movable core, so that the flash influence during forming at the positions is greatly reduced, and the forming effect of the die is better.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the connecting structure of the fixed core, the movable core and the fixed core extension block of the present invention;
FIG. 4 is a schematic top view of the fixed core, the movable core and the fixed core extension block of the present invention;
FIG. 5 is a schematic view of the structure of the movable core and the push-pull mechanism thereof;
FIG. 6 is a schematic view of a fixed core extension block according to the present invention;
FIG. 7 is a schematic view of a cam telescoping linkage mechanism of the present invention;
fig. 8 is a schematic view of the structure of the ejector pin in the fixed core extension block of the present invention.
In the figure: 1. a movable template; 2. a stationary mold plate; 3. a fixed die seat plate; 4. a support plate; 5. a cushion block; 6. a movable die base plate; 7. a fixed mold core; 8. a moving mold core; 81. a fixed core; 82. a movable core; 821. a push-pull plate; 822. guide sleeve of push-pull plate; 823. a lower connecting sleeve; 824. a lower connecting sleeve guide rod; 83. fixing the core extension block; 831. a fixed core extension block body; 832. a fixed core extension block inner cavity; 833. a cavity side runner; 834. an injection molding channel is arranged in the fixed core extension block; 835. fixing the ejector rod in the core extension block; 8351. an upper ejector rod; 8352. a lower ejector rod; 8353. a jacking rod sleeve; 8354. a clamping block; 8355. installing a screw; 8356. a spring; 8357. the upper ejector rod is abutted against the block; 836. a cavity upper sealing plate; 837. injection molding an inner hole of the channel; 9. a push plate; 10. a push plate fixing plate; 11. an outer baffle; 111. a top plate; 112. a movable core supporting rod; 13. a protrusion; 14. a pin; 15. a first waist-shaped hole; 16. a cylindrical mounting plate; 17. a cylinder; 18. a connecting plate; 19. a second waist-shaped hole; 20. a movable plate.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The invention provides an injection molding die for washing machine accessories, as shown in figures 1 and 2, which comprises a movable die plate 1, a fixed die plate 2, a fixed die seat plate 3, a support plate 4, a cushion block 5 and a movable die seat plate 6 which are sequentially arranged, wherein the fixed die plate 2 is fixedly connected with the fixed die seat plate 3 and fixedly arranged on an equipment frame and is immovable; the movable template 1, the support plate 4, the cushion block 5 and the movable die holder plate 6 are fixedly connected, are movably arranged on the equipment frame through guide posts, and are driven to open and close up and down through a cylinder group; a push plate 9 and a push plate fixing plate 10 are arranged between the support plate 4 and the movable die seat plate 6 and positioned on the inner side of the cushion block 5, a fixed die core 7 is arranged on the inner side of the fixed die plate 2, a movable die core 8 is arranged on the inner side of the movable die plate 1, and the push plate 9 is pushed by another cylinder group to drive the movable die core to move up and down so as to realize up and down movement of the movable core 82 and each ejector rod.
As shown in fig. 3 and 4, the movable mold core 8 comprises a fixed core 81, two movable cores 82 and a fixed core extension block 83 arranged between the two movable cores 82, the interface between the movable cores 82 and the fixed core 81 is obliquely arranged, the movable cores 82 drive the extension surface to move through a push-pull mechanism, because the upper end surrounding frame of the single-drum pulsator washing machine is a square ring structure, the formed part structure is positioned at the lower side of the protruding part at the outer side of the movable cores 82, namely the part I in fig. 7, which affects the demolding of the formed injection molding piece, so the movable cores 82 are designed to obliquely move towards the upper part of the inner side, the movable cores 82 are folded towards the inner side when viewed from the overlooking angle, the occupied space of the whole movable mold core 8 is reduced, the movable cores 82 do not affect the demolding, the push-pull mechanism comprises a push-pull plate 821, a push-pull plate guide sleeve 822, a lower connecting sleeve 823 and a lower connecting sleeve guide rod 824, wherein the upper end of the push-pull plate 821 is connected with a movable core 82, the push-pull plate 821 movably passes through the push-pull plate guide sleeve 822, the lower end of the push-pull plate 821 is rotationally connected with the lower connecting sleeve 823, the lower connecting sleeve guide rod 824 horizontally passes through and is in sliding connection with the lower connecting sleeve 823, the push-pull plate guide sleeve 822 is arranged on a supporting plate 4, a movable cavity of the lower connecting sleeve 823 is arranged on a push plate 9, the lower connecting sleeve guide rod 824 is horizontally arranged in the movable cavity, and when the push plate 9 moves upwards, the push-pull plate 821 is driven to move upwards to push the movable core 82 to move inwards and simultaneously the lower connecting sleeve 823 moves inwards along the lower connecting sleeve guide rod 824;
as shown in fig. 7, the structure of the protrusion telescopic linkage mechanism is as follows, the outer side surface of the movable core 82 is movably provided with a plurality of protrusions 13, the protrusions 13 are commonly connected to the side wall of the movable plate 20 inside the movable core 82, the inner side of the movable plate 20 is connected with the connecting plate 18, and the connecting plate 18 is obliquely provided with the second waist-shaped hole 19; the upper end of the push-pull plate 821 is connected in the movable core 82 through a pin 14, a first waist-shaped hole 15 is formed in the push-pull plate 821 where the pin 14 is located, a cylindrical mounting plate 16 is arranged at the upper end of the pin 14, a cylinder 17 is arranged at the tail end of the cylindrical mounting plate 16, and the cylinder 17 is arranged in a second waist-shaped hole 19; for convenience of explanation, the push plate 9 is moved up to be divided into two sections, wherein the first section, when the push-pull plate 821 is moved up initially, the cylinder 17 is driven to move up through the cylinder mounting plate 16, the cylinder 17 extrudes the second waist-shaped hole 19 first, the movable plate 20 is driven by the connecting plate 18 to enable the protrusion 13 to retract into the movable core 82, and the second section, when the push-pull plate 821 is moved up continuously, the lower end of the first waist-shaped hole 15 abuts against the pin 14, so that the whole movable core 82 is driven to move up.
As shown in fig. 8, the push-pull plate 821 is initially moved up to retract the protrusion 13 into the movable core 82, the upper end of the inner ejector rod 835 of the fixed core extension block in the upward movement process of the push plate 9 should not move up to eject the mold, and the forced ejection would damage the mold, so that the inner ejector rod 835 of the fixed core extension block and the second section of the push plate 9 need to move together when moving up, therefore, the inner ejector rod 835 of the fixed core extension block is designed into a structure, the inner ejector rod 835 of the fixed core extension block comprises an upper ejector rod 8351, a lower ejector rod 8352 and an ejector rod sleeve 8353, the upper ejector rod 8351 and the lower ejector rod 8352 are slidably sleeved in the ejector rod sleeve 8353, a clamping block 8354 is movably arranged in the ejector rod sleeve 8353, the lower end surface of the clamping block 8354 is an inclined plane, the upper end surface is a plane, the upper ejector rod 8351 is supported, the upper ejector rod 8351 is enabled to be stressed when the mold is molded, the outer side of the clamping block 8354 is provided with a spring 8356, the lower end of the upper ejector rod 8351 is provided with an upper ejector rod supporting block 8357, the distance between the upper ejector rod supporting block 8357 and the lower ejector rod 8352 is the same as the upward moving distance of the first section of the push plate 9, the lower end face of the upper ejector rod supporting block 8357 is flush with the lowest end of the inclined plane of the clamping block 8354, the ejector rod sleeve 8353 is arranged on the supporting plate 4, the outer wall of the ejector rod sleeve 8353 is provided with an external thread, a locking nut is further arranged on the external thread, the ejector rod sleeve 8353 is fixed on the supporting plate 4, the threaded installation is adopted, the height of the ejector rod sleeve 8353 is adjustable, so that the upper ejector rod 8351 is adjustable in height, the lower ejector rod 8352 is arranged on the push plate 9, and the installation height is adjustable, namely the distance between the upper ejector rod supporting block 8357 and the lower ejector rod 8352 is adjustable according to the actual use requirement; when the first section of the push plate 9 moves upwards, the upper end of the lower ejector rod 8352 contacts with the upper ejector rod supporting block 8357, and when the push plate 9 moves upwards in the second section, the lower ejector rod 8352 acts on the inclined plane of the lower end surface of the clamping block 8354 to enable the clamping block 8354 to move outwards, and meanwhile the upper ejector rod 8351 can be lifted up, so that the upper ejector rod 8351 can realize the function of ejecting a molding model.
As shown in fig. 6, the fixed core extension block 83 includes a fixed core extension block body 831, a fixed core extension block inner cavity 832, a cavity side runner 833, a fixed core extension block inner injection molding channel 834 and a fixed core extension block inner ejector pin 835, the fixed core extension block inner cavity 832 is opened outside the upper end surface of the fixed core extension block body 831, the cavity side runners 833 are provided at both sides of the fixed core extension block inner cavity 832, the fixed core extension block inner injection molding channel 834 is provided inside the upper end surface of the fixed core extension block body 831, and the fixed core extension block inner injection molding channel 834 is downwardly inclined to pass through the fixed core extension block body 831 and extend into the fixed core extension block inner cavity 832, the injection molding material entering from the fixed core extension block inner injection molding channel 834 enters the cavity at the position of the movable core 82 from the cavity side runners 833 at both sides after entering the fixed core extension block inner cavity 832, not only can make the position injection molding, but also reduce the cavity injection molding channel at the position of the movable core 82, and is more practical; the upper side of the fixed core extension block body 831 is provided with a cavity upper sealing plate 836, the cavity upper sealing plate 836 is mounted on the fixed mold core 7, the cavity upper sealing plate 836 moves up and down along with the opening and closing of the fixed mold core 7, and the cavity upper sealing plate 836 moves up along with the opening after the mold is opened, so that the demolding of an injection molding part is not influenced.
The section of fixed core extension piece internal injection molding passageway 834 downward sloping through fixed core extension piece body 831 sets up to injection molding passageway hole 837, and injection molding passageway hole 837's shape sets up to the round platform form that reduces along the circulation direction aperture gradually, with the view angle of fig. 6, injection molding passageway hole 837 downward sloping and aperture reduce gradually, the end of injection molding passageway hole 837 forms the incision of an acute angle, set up fixed core extension piece internal ejector pin 835 in the fixed core extension piece internal injection molding passageway 834, when the drawing of patterns in fixed core extension piece internal ejector pin 835 upwards jack up the built-in injection molding material of fixed core extension piece internal injection molding passageway 834, the end position of injection molding passageway hole 837 is very easy to fracture, make its and the separation of moulding plastics, reduce the work load of follow-up manual clearance injection molding.
As shown in fig. 3 and 5, an outer baffle plate 11 is arranged at the outer side of the movable core 82, a movable top plate 111 is arranged at the inner side surface of the outer baffle plate 11, and the lower end of the top plate 111 is connected with a push plate 9; the outer baffle 11 is also provided with a movable core supporting rod 112; the movable core supporting rod 112 is in threaded connection with the outer baffle plate 11, and a supporting rod sleeve is arranged at the inner end of the movable core supporting rod 112.
The invention also comprises a using method of the injection molding die for the washing machine accessories, which comprises the following steps:
1) Opening the die, coating metal gap filler on the gap between the ejector rod hole of the die, the gap between the contact surface of the movable core 82 and the fixed core 81 and the gap between the contact surface of the fixed core extension block 83 of the movable core 82, scraping off redundant metal gap filler outside the gap, starting a heat supply system of the die, and rapidly forming the metal gap filler at high temperature;
2) Closing the mold, inputting the prepared injection molding material into the mold, and opening the mold again after the material is molded;
3) Starting the air cylinder, wherein the air cylinder pushes the push plate fixing plate 10 to move upwards, when the push plate 821 moves upwards initially, the cylinder 17 is driven to move upwards through the cylinder mounting plate 16, the cylinder 17 extrudes the second waist-shaped hole 19, and the movable plate 20 is driven by the connecting plate 18 to enable the protrusion 13 to retract into the movable core 82;
4) When the push-pull plate 821 continues to move upwards, the lower end of the first waist-shaped hole 15 abuts against the pin 14, so that the whole movable core 82 is driven to move upwards; the push plate fixing plate 10 drives the push plate 9 to move upwards together, so that the push-pull plate 821 pushes the movable core 82 to move obliquely inwards and upwards along the inclined plane;
5) Simultaneously, the upper end of lower ejector rod 8352 contacts the lower terminal surface of upper ejector rod supporting piece 8357, and ejector rod, fixed core extension intra-block ejector rod 835, roof 111 on push pedal 9 upwards move jointly, jack up the injection molding on the movable mould core 8 and take off the drawing of patterns, alright take off the injection molding.
The injection molding ejector rod structure is the same as the structure of the inner ejector rod 835 of the fixed core extension block, and the injection molding ejector rod is a conventional ejector rod on a die, so the inner ejector rod 835 of the fixed core extension block is independently named for convenience of description; the lower end structure of the top plate 111 is the same as the structure of the ejector rod 835 in the fixed core extension block; the top plate 111 is also used to eject the mold, and the lower end of the top plate 111 is connected to the push plate 9 by a fixed core extension block inner push rod 835, which serves as a connecting structure, so that the top plate 111 remains stationary when the first section of the push plate 9 moves upward, and the second section moves upward to eject the mold.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. The utility model provides a washing machine accessory injection moulding mould, includes movable bolster (1), fixed bolster (2), cover half bedplate (3), bearing plate (4), cushion (5), movable bolster bedplate (6) that set gradually, fixed bolster (2) and cover half bedplate (3) fixed connection, movable bolster (1), bearing plate (4), cushion (5), movable bolster (6) fixed connection, its characterized in that: a push plate (9) and a push plate fixing plate (10) are arranged between the support plate (4) and the movable die base plate (6) and positioned at the inner side of the cushion block (5), a fixed die core (7) is arranged at the inner side of the fixed die plate (2), and a movable die core (8) is arranged at the inner side of the movable die plate (1);
the movable mold core (8) comprises a fixed core (81), two movable cores (82) and a fixed core extending block (83) arranged between the two movable cores (82), wherein the interface between the movable cores (82) and the fixed cores (81) is obliquely arranged, the movable cores (82) are driven to move along the interface through a push-pull mechanism, the push-pull mechanism comprises a push-pull plate (821), a push-pull plate guide sleeve (822), a lower connecting sleeve (823) and a lower connecting sleeve guide rod (824), the upper end of the push-pull plate (821) is connected with the movable cores (82), the push-pull plate (821) movably passes through the push-pull plate guide sleeve (822), the lower connecting sleeve guide rod (823) is rotatably connected with the lower connecting sleeve (823), the lower connecting sleeve guide rod (824) horizontally passes through and is connected with the lower connecting sleeve (823) in a sliding mode, the push-pull plate guide sleeve (822) is arranged on a supporting plate (4), a movable cavity of the lower connecting sleeve (823) is arranged on the push plate (9), and when the push plate (9) moves upwards to drive the upper connecting sleeve (823) to move upwards, and the inner side of the movable core (821) is pushed upwards to move downwards along the guide rod (823);
fixed core extension piece (83) are including fixed core extension piece body (831), fixed core extension piece interior type chamber (832), die cavity side runner (833), fixed core extension piece interior injection molding passageway (834) and fixed core extension piece interior ejector pin (835), fixed core extension piece interior type chamber (832) are offered in the up end outside of fixed core extension piece body (831), fixed core extension piece interior type chamber (832) both sides set up die cavity side runner (833), fixed core extension piece body (831) up end inboard sets up fixed core extension piece interior injection molding passageway (834), and fixed core extension piece interior injection molding passageway (834) downward sloping passes fixed core extension piece body (831) and extends to in the fixed core extension piece interior type chamber (832).
2. The washing machine accessory injection molding die of claim 1, wherein: the upper side of the fixed core extension block body (831) is provided with a cavity upper sealing plate (836), and the cavity upper sealing plate (836) is arranged on the fixed mold core (7).
3. The washing machine accessory injection molding die of claim 1, wherein: the injection molding channel (834) in the fixed core extension block is downwards obliquely penetrated through one section of the fixed core extension block body (831) to form an injection molding channel inner hole (837), the injection molding channel inner hole (837) is formed into a truncated cone shape with gradually reduced aperture along the flowing direction, and the injection molding channel (834) in the fixed core extension block is internally provided with a fixed core extension block inner ejector rod (835).
4. The washing machine accessory injection molding die of claim 1, wherein: the outer side surface of the movable core (82) is movably provided with a plurality of bulges (13), the bulges (13) are commonly connected to the side wall of the movable plate (20) in the movable core (82), the inner side of the movable plate (20) is connected with the connecting plate (18), and the connecting plate (18) is obliquely provided with a second waist-shaped hole (19); the upper end of the push-pull plate (821) is connected in the movable core (82) through a pin (14), a first waist-shaped hole (15) is formed in the push-pull plate (821) at the position of the pin (14), a cylindrical mounting plate (16) is arranged at the upper end of the pin (14), a cylinder (17) is arranged at the tail end of the cylindrical mounting plate (16), and the cylinder (17) is arranged in a second waist-shaped hole (19).
5. The washing machine accessory injection molding die of claim 1, wherein: an outer baffle (11) is arranged on the outer side of the movable core (82), a movable top plate (111) is arranged on the inner side surface of the outer baffle (11), and the lower end of the top plate (111) is connected with a push plate (9).
6. The washing machine accessory injection molding die of claim 5, wherein: the outer baffle (11) is also provided with a movable core supporting rod (112).
7. The washing machine accessory injection molding die of claim 6, wherein: the movable core supporting rod (112) is in threaded connection with the outer baffle plate (11), and a supporting rod sleeve is arranged at the inner end of the movable core supporting rod (112).
8. A washing machine accessory injection mold as claimed in claim 3, wherein: the inner ejector rod (835) of the fixed core extension block comprises an upper ejector rod (8351), a lower ejector rod (8352) and an ejector rod sleeve (8353), the upper ejector rod (8351) and the lower ejector rod (8352) are in sliding sleeve connection with the ejector rod sleeve (8353), a clamping block (8354) is movably arranged in the ejector rod sleeve (8353), the lower end face of the clamping block (8354) is an inclined surface, the upper end face is a plane, a spring (8356) is arranged on the outer side of the clamping block (8354), an upper ejector rod supporting block (8357) is arranged at the lower end of the upper ejector rod (8351), the lower end face of the upper ejector rod supporting block (8357) is flush with the lower end of the inclined surface of the clamping block (8354), the ejector rod sleeve (8353) is arranged on the supporting plate (4), and the lower ejector rod (8352) is arranged on the pushing plate (9).
9. A method of using the injection molding mold for washing machine accessories as claimed in any one of claims 1 to 8, comprising the steps of:
1) opening the mould, coating a gap filler on a mandril hole gap of the mould, a gap between a contact surface of a movable core (82) and a fixed core (81) and a gap between a contact surface of a fixed core extension block (83) of the movable core (82), scraping off redundant gap filler outside the gap, starting a heat supply system of the mould, and rapidly forming the gap filler at high temperature;
2) Closing the mold, inputting the prepared injection molding material into the mold, and opening the mold again after the material is molded;
3) Starting the air cylinder, wherein the air cylinder pushes the push plate fixing plate (10) to move upwards, when the push plate (821) moves upwards initially, the cylinder (17) is driven to move upwards through the cylinder mounting plate (16), the cylinder (17) extrudes the second waist-shaped hole (19), and the movable plate (20) is driven by the connecting plate (18) to enable the protrusion (13) to shrink into the movable core (82);
4) When the push-pull plate (821) continues to move upwards, the lower end of the first waist-shaped hole (15) props against the pin (14), so that the whole movable core (82) is driven to move upwards; the push plate fixing plate (10) drives the push plate (9) to move upwards together, so that the push plate (821) pushes the movable core (82) to move obliquely upwards along the inclined plane;
5) Simultaneously, the upper end of lower ejector rod (8352) contacts the lower terminal surface of upper ejector rod supporting piece (8357), and ejector rod, fixed core extension piece inner ejector rod (835) on push pedal (9), roof (111) upwards move jointly, jack up the drawing of patterns with the injection molding on moving model core (8), alright take off the injection molding.
10. The method for using an injection molding mold for washing machine accessories according to claim 9, wherein the injection molding ejector rod structure is identical to the structure of the ejector rod (835) in the fixed core extension block, and the lower end structure of the top plate (111) is identical to the structure of the ejector rod (835) in the fixed core extension block.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117429007A (en) * | 2023-11-17 | 2024-01-23 | 江苏惠利隆塑业集团有限公司 | Forming mechanism for injection molding machine and application method thereof |
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| KR200188815Y1 (en) * | 1999-12-30 | 2000-07-15 | 엘지전자주식회사 | Mold use of injection molding |
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| CN116252440B (en) | 2023-11-03 |
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