CN114147929B - Injection mold of automobile lamp shell - Google Patents
Injection mold of automobile lamp shell Download PDFInfo
- Publication number
- CN114147929B CN114147929B CN202111524367.XA CN202111524367A CN114147929B CN 114147929 B CN114147929 B CN 114147929B CN 202111524367 A CN202111524367 A CN 202111524367A CN 114147929 B CN114147929 B CN 114147929B
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- mold
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- ejector
- bulge
- parting
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- 241000258971 Brachiopoda Species 0.000 title claims abstract description 47
- 238000002347 injection Methods 0.000 title claims abstract description 37
- 239000007924 injection Substances 0.000 title claims abstract description 37
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 235000000396 iron Nutrition 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 238000000465 moulding Methods 0.000 abstract description 25
- 238000001746 injection moulding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000243 solution Substances 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector means
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an injection mold of an automobile lamp shell, which comprises an upper mold and a lower mold which are oppositely arranged, wherein the lower surface of the upper mold is provided with a first parting surface, the first parting surface is provided with two concave cavities which correspond to the upper surface of the automobile lamp shell in a mirror image mode, the upper surface of the lower mold is provided with a second parting surface, the second parting surface is provided with a mold bulge matched with the corresponding concave cavities, the first parting surface is also provided with a first runner, the second parting surface is also provided with a second runner, the first runner and the second runner are oppositely arranged to form a side mold groove, a side mold which is movably embedded with the mold bulge is arranged in the side mold groove, the periphery side of the mold bulge is also provided with a first insert which is movably embedded with the mold bulge, the first insert is in transmission connection with an oblique top component, the mold bulge is embedded with the first insert to form a first molding bulge, the concave cavities, the first molding bulge is used for embedding the automobile lamp shell, and the oblique top component is used for transmitting the first mold bulge to eject the opposite mold bulge, and the automobile lamp shell is demolded.
Description
Technical Field
The invention relates to the technical field of molds, in particular to an injection mold for an automobile lamp shell.
Background
The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. The automobile lamp shell is often formed by injection molding through an injection mold, but in the injection molding process of the automobile lamp shell of the automobile lamp assembly, as the automobile lamp shell is formed with a plurality of bone positions, an automobile lamp mounting table board, locking lugs and the like, the side wall and the surface of the automobile lamp shell form a concave-convex structure, so that the demolding is difficult after the automobile lamp shell is formed; meanwhile, in the related technical field, after the automobile lamp shell is molded, a plurality of bone positions are easy to form back-off, the molded automobile lamp shell is poor in effect, and the product quality is low.
At present, no effective solution is proposed for solving the problems of difficult demoulding and poor quality of a formed product of an injection mould for injection molding of an automobile lamp shell in the related art.
Disclosure of Invention
In view of the foregoing, it is necessary to provide an injection mold for an automobile lamp housing, so as to at least solve the problems of difficult demolding and poor quality of molded products of the injection mold for injection molding of an automobile lamp housing in the related art.
In order to solve the technical problems, the invention provides a technical scheme as follows: the injection mold of the automobile lamp shell comprises an upper mold and a lower mold which is arranged oppositely to the upper mold, wherein a first parting surface is arranged on the lower surface of the upper mold, two concave cavities which correspond to the upper surface of the automobile lamp shell are formed in the first parting surface in a mirror image mode, a second parting surface is arranged on the upper surface of the lower mold, a mold bulge which is matched with the corresponding concave cavities is arranged on the second parting surface, a first running groove is further formed in the first parting surface, a second running groove is further formed in the second parting surface, a side mold which is movably embedded with the mold bulge is arranged in the side mold groove, a first insert mold which is movably embedded with the mold bulge is further arranged on the periphery of the mold bulge, the first insert mold is connected with an oblique top component in a transmission mode, the mold bulge is embedded with the first insert mold so as to form a first molding bulge, the first molding bulge is embedded with the side mold bulge so as to form a first molding bulge, the automobile lamp shell is used for ejecting out the automobile lamp shell, and the first molding bulge is used for forming the cavity of the automobile lamp shell.
In the injection mold, the first row of position grooves and the second row of position grooves are adopted to form the side mold grooves for mounting the side mold; the side die, the first insert die, the die boss and the concave cavity are matched to form the first molding cavity for molding the automobile lamp shell, the surface and the side wall of the molded automobile lamp shell are reversely buckled, the edge point glue and the point steel are fewer, and the molded product quality is high; meanwhile, by arranging the side die and the first insert die, the automobile lamp shell can be quickly separated after being molded, and the problem that an injection mold for injection molding of the automobile lamp shell is difficult to demold is solved.
In some embodiments, in order to realize forming the car lamp mounting table and the car lamp hole, the mold convex comprises a columnar body, the columnar body is provided with a first parting table top, the first parting table top is provided with a first parting cavity, a first parting table top corresponding to the first parting table top is arranged in the first parting table top, a second parting table top corresponding to the first parting table top is arranged in the cavity, and a second parting table top is arranged at a position corresponding to the first parting table top and the first parting table top, wherein the first parting table top and the second parting table top are combined to form a first cavity for forming the car lamp mounting table, and the first parting table top, the first parting table top and the second parting table top are combined to form a second cavity for forming the car lamp hole.
So set up, through setting up the concave first type mesa, and be in first type mesa sets up first type cave with protruding mold insert of first type, cooperate protruding second type mesa and the corresponding setting of second type cave constitute corresponding die cavity, and shaping car light mount pad and car light hole respectively, the car light mount pad after the shaping does not have the back-off, car light simple to operate.
In some embodiments, in order to realize rapid embedding in place and rapid demolding when the upper die and the lower die are combined, a side push block is arranged in the second row of position grooves and connected with the side die, an inclined guide hole which is obliquely arranged is formed in the side push block, an inclined guide pillar is further arranged in the first row of position grooves, and the inclined guide pillar is used for penetrating into the inclined guide hole and transmitting the side push block to drive the side die to move towards the die bulge so as to be embedded with the die bulge when the upper die and the lower die are combined.
The device is characterized in that in the die assembly or the die stripping process of the upper die and the lower die, the inclined guide pillar vertically moves to laterally push the side push block to move along the second row position groove to drive the side die to be correspondingly and convexly embedded with or separated from the die, and the die and the corresponding insert are convenient to assemble and disassemble.
In some embodiments, in order to achieve separation of the side die and the die boss after demolding of the upper die and the lower die, a guide post extending towards the die boss is further arranged on one side of the side pushing block, which is close to the die boss, a first elastic piece is sleeved on the guide post, and two free ends of the first elastic piece respectively lean against the side wall of the second row of positioning grooves and the side wall of the side pushing block, wherein the first elastic piece is used for providing elastic force along the axial direction of the first guide post when the upper die and the lower die are separated, so that the side die and the die boss are separated.
The side pushing block drives the side die to be far away from the die bulge through the acting force provided by the second line position groove by pushing the first elastic piece, so that the demolding of the side die and the die bulge is accelerated, and the ejection and demolding speed of a product is accelerated.
In some embodiments, in order to assemble a complete mold structure, the injection mold further comprises a base, square irons, a bottom needle plate and an ejector pin plate, wherein two square irons are arranged on the base at intervals, two square irons are arranged on two sides of the base in the transverse direction, the lower mold is fixedly arranged on the two square irons, the lower mold is further movably connected with the upper mold through a first guide post matched with a first guide sleeve, the lower mold is further connected with the base through a plurality of second guide posts, the bottom needle plate and the ejector pin plate are arranged between the two square irons and pass through the second guide posts, a plurality of ejector pins which movably penetrate through the lower mold and protrude from the lower mold and extend into the first molding cavity are arranged on the ejector pin plate, and the oblique ejector pin assembly is further connected with the bottom needle plate after penetrating through the ejector pin plate; the bottom needle plate and the thimble plate can be pushed by an external ejector rod to move, so that the thimble and/or the inclined ejector assembly can move, and the formed automobile lamp shell is ejected out of the material.
In some embodiments, in order to realize quick ejection and demolding of an injection molded product, the inclined ejection assembly comprises a mounting seat, a sliding block, an ejector pin and an ejector rod, wherein the mounting seat is fixedly arranged on the bottom needle plate, the mounting seat is provided with a sliding groove which extends vertically in the transverse direction of the base, the sliding block is movably arranged in the sliding groove, one end of the sliding block corresponding to the extending direction of the sliding groove is provided with an inclined wedge surface, the ejector pin is vertically arranged and fixedly connected with the lower die, one end of the ejector pin, which is away from the lower die, is provided with an inclined wedge tongue corresponding to the inclined wedge surface, the ejector rod is vertically arranged, one vertical end of the ejector rod is in clamping connection with the sliding block, and the other vertical end of the ejector rod is connected with the first insert die, wherein the ejector pin is used for enabling the inclined wedge tongue to abut against the inclined wedge surface and pushing the sliding block to move along the sliding groove when the bottom needle plate drives the mounting seat and the sliding block to vertically move; the sliding block is used for driving the ejector rod to swing when moving along the sliding groove; and the ejector rod is used for driving the first insert die to be ejected out relative to the die boss during swinging and vertical movement.
The setting is that in the vertical jacking process of the bottom needle plate, the inclined wedge tongue is propped against the inclined wedge surface, the sliding block is pushed to move along the sliding groove and drive the ejector rod to deflect and move along with the vertical movement of the bottom needle plate, the first insert die is correspondingly driven to be ejected relative to the die bulge, and therefore the formed product is ejected out of the first forming bulge.
In some embodiments, in order to realize connection between the sliding block and the ejector rod and return the ejector rod, the inclined ejector assembly further comprises a second elastic piece, a first accommodating hole is further formed in one end of the sliding block, which is away from the inclined wedge surface, the second elastic piece is arranged in the first accommodating hole, one end of the second elastic piece, which is away from the sliding block, abuts against the mounting seat, a clamping hole is further formed in the sliding block, a concave table corresponding to the clamping hole is formed in the side wall of the ejector rod, and the concave table is movably buckled with the clamping hole, so that the ejector rod is clamped with the sliding block; the second elastic piece is used for providing elastic force along the sliding direction of the sliding block when the inclined wedge tongue is separated from the inclined wedge surface so as to enable the sliding block to slide back; and the sliding block is used for driving the ejector rod to deflect when the sliding block slides back and driving the first insert die to be matched with the die bulge.
When the inclined wedge tongue is separated from the inclined wedge surface, the sliding block drives the ejector rod to swing to return through the acting force provided by the second elastic piece, and the first insert die is matched with the vertical return of the bottom needle plate to realize the rapid return of the die bulge.
In some embodiments, in order to realize the forming of the locking lug and the locking lug hole, the first parting surface is provided with a plurality of first hole slots matched with the locking lug of the automobile lamp shell, a first hole barrel for forming the locking lug hole is arranged in the first hole slots, the second parting surface is provided with a first hole table corresponding to the first hole slots, and the first hole table is provided with a second hole barrel corresponding to the first hole barrel, wherein the first hole slots, the first hole table, the first hole barrel and the second hole barrel are combined to form a third cavity for forming the locking lug.
In one embodiment, in order to achieve that the ejector pin is retracted to form a complete first molding cavity when the injection mold is closed, a third elastic piece is further sleeved on the second guide post, two vertical ends of the third elastic piece are respectively propped against the ejector pin plate and the lower mold, wherein the third elastic piece is used for propping against the ejector pin plate to drive the ejector pin and/or the inclined ejector assembly to relatively move away from the lower mold after ejection and stripping are completed, so that the ejector pin and/or the first molding die returns.
In one embodiment, in order to realize rapid embedding in place when the upper die and the lower die are combined, four vertex angles of the first parting surface are provided with first mortises; the four vertex angles of the second parting surface are respectively provided with a first tenon matched with the first tenon groove; the first tenon is embedded with the first mortise, so that the upper die and the lower die are embedded.
Drawings
FIG. 1 is an exploded view of an upper mold and a lower mold of an injection mold according to an embodiment of the present application;
FIG. 2 is an exploded view of a lower die, a die boss, a side die and a first insert die according to an embodiment of the present application;
FIG. 3 is a schematic view of an upper die according to an embodiment of the present application;
FIG. 4 is a perspective view of an injection mold according to an embodiment of the present application;
FIG. 5 is an exploded view of an injection mold according to an embodiment of the present application;
FIG. 6 is a structural view of a pitched roof assembly according to an embodiment of the present application;
FIG. 7 is a schematic view of an automotive lamp housing injection molded from an injection mold according to the present application;
Fig. 8 is another schematic view of an automotive lamp housing formed by the injection mold of the present application.
Reference numerals:
001. Automobile lamp shell; 002. a lamp mounting table; 003. a lamp hole; 004. a locking lug; 005. a locking lug hole; 1. An upper die; 101. a first parting surface; 102. a recess; 103. a first row of slots; 104. a second parting table top; 105. a second type of cavity; 106. a first pocket; 107. a first tenon; 2. a lower die; 201. a second parting surface; 202. a second row of slots; 203. a first cavity table; 204. a first tenon; 3. mould convex; 31. a first type male insert; 301. a columnar body; 302. a first parting table top; 303. a first type of cavity; 4. a side mold; 5. a first insert mold; 6. An inclined roof assembly; 61. a mounting base; 62. a slide block; 63. a knock pin; 64. a push rod; 65. a second elastic member; 611. a chute; 621. an inclined wedge surface; 622. a clamping hole; 631. a wedge tongue; 7. a side pushing block; 8. Oblique guide posts; 9. a guide post; 10. a first elastic member 11, a base; 12. square iron; 13. a bottom needle plate; 14. a needle ejection plate; 15. a first guide post; 16. a second guide post; 17. a thimble; 18. a first barrel; 19. a second barrel; 20. and a third elastic member.
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.
It is noted that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
Fig. 1 is an exploded view of an upper mold and a lower mold of an injection mold according to an embodiment of the present application. The injection mold of the drawing is used for forming the automobile lamp shell 001 shown in fig. 7 and 8, a first forming cavity (not shown in the drawing) for forming the automobile lamp shell 001 is formed by matching the side mold 4, the first insert mold 5, the mold bulge 3 and the concave cavity 102, the surface and side wall back-off, edge point gum and point steel of the formed automobile lamp shell 001 are few, the formed product quality is high, and the side mold 4 and the first insert mold 5 are arranged, so that the formed automobile lamp shell 001 can be quickly separated, and the problem of difficult demoulding of the injection mold for injection molding the automobile lamp shell is solved.
Referring to fig. 1 to 8, an injection mold for an automotive lamp shell according to an embodiment of the present invention includes an upper mold 1 and a lower mold 2 disposed opposite to the upper mold 1, a first parting surface 101 disposed on a lower surface of the upper mold 1, two concave cavities 102 corresponding to an upper surface 002 of the automotive lamp shell 001 are disposed on the first parting surface 101 in a mirror image manner, a second parting surface 201 disposed on an upper surface of the lower mold 2, a mold protrusion 3 matching with the corresponding cavity 102 is disposed on the second parting surface 201, a first positioning groove 103 is further disposed on the first parting surface 101, a second positioning groove 202 is disposed on the second parting surface 201, the first positioning groove 103 and the second positioning groove 202 are disposed opposite to each other to form a side mold groove, a side mold 4 movably engaged with the mold protrusion 3 is disposed in the side mold groove, a first insert 5 movably engaged with the mold protrusion 3 is disposed on a peripheral side of the mold protrusion 3, the first insert 5 is in transmission connection with an oblique top assembly 6, wherein the mold protrusion 3 is engaged with the first insert 5 to form a first mold protrusion, 102, the first mold protrusion 4 and the side mold protrusion 4 are engaged with the corresponding cavity 102 to form a cavity 001 of the automotive lamp shell after the first mold protrusion 001 is ejected from the mold cavity by the transmission assembly, and the mold protrusion 001 is ejected from the mold cavity by the mold cavity 001.
In the injection mold, a side mold groove for mounting the side mold 4 is formed by combining the first row of position grooves 103 and the second row of position grooves 202; the side die 4, the first insert die 5, the die bulge 3 and the concave cavity 102 are matched to form a first molding cavity for molding the automobile lamp shell 001, the surface and the side wall of the molded automobile lamp shell 001 are less in back-off, edge apex and tip steel positions, and the molded product is high in quality; meanwhile, by arranging the side die 4 and the first insert die 5, the automobile lamp shell 001 can be quickly separated after being molded, and the problem that an injection mold for injection molding of the automobile lamp shell 001 is difficult to demold is solved.
Fig. 2 is an exploded view of a lower mold, a mold bulge, a side mold and a first insert mold according to an embodiment of the present application, fig. 3 is a schematic view of an upper mold according to an embodiment of the present application, referring to fig. 2 and 3, in order to implement a molding of a lamp mounting table 002 and a lamp hole 003, in some embodiments, the mold bulge 3 includes a cylindrical body 301, the cylindrical body 301 is provided with a first parting table 302, the first parting table 302 is provided with a first cavity 303, the first cavity 303 is provided with a first molding insert 31, the cavity 102 is provided with a second parting table 104 corresponding to the first parting table 302, and a second cavity 105 is provided at a position of the second parting table 104 corresponding to the first insert 31 and the first cavity 303, wherein the first parting table 302 and the second parting table 104 are combined to form a first cavity (not shown) for molding the lamp mounting table 002, and the first cavity 303, the first molding insert 31 and the second cavity 105 are combined to form a second cavity for molding the lamp hole 003.
It can be understood that, by setting the concave first parting table top 302 and setting the first cavity 303 and the first convex insert 31 on the first parting table top 302, the second parting table top 104 protruding downwards and the second cavity 105 correspondingly set are matched to form the corresponding cavity, and the lamp mounting table 002 and the lamp hole 003 are respectively formed, the formed lamp mounting table 002 has no back-off, and the lamp is convenient to mount.
The first parting table top 302 and the second parting table top 104 are combined and correspond to the molded lamp mounting table 002, and in the process of molding the lamp mounting table 002, a cavity for molding the lamp hole 003 is formed by the first cavity 303 and the second cavity 105, and the first male insert 31 is inserted into the cavity, so that the lamp hole 003 for allowing the lamp to pass through or the lamp holder to be mounted is molded on the lamp mounting table 002.
In order to achieve rapid engagement and rapid demolding when the upper mold and the lower mold are combined, in some embodiments, referring to fig. 1 to 3, a side push block 7 is arranged in the second row of position grooves 202, the side push block 7 is connected with the side mold 4, the side push block 7 is provided with an inclined guide hole 701 which is obliquely arranged, an inclined guide pillar 8 is also arranged in the first row of position grooves 103, and the inclined guide pillar 8 is used for penetrating the inclined guide hole 701 and driving the side push block 7 to drive the side mold 4 to move towards the mold protrusion 3 so as to be engaged with the mold protrusion 3 when the upper mold 1 and the lower mold 2 are combined.
It can be appreciated that in the process of die assembly or die release of the upper die 1 and the lower die 2, the inclined guide post 8 moves vertically to push the side push block 7 laterally to move along the second row of the position slots 202, so as to drive the side die 4 to be correspondingly engaged with or separated from the die boss 3, and the die and the corresponding insert are convenient to assemble and disassemble.
It should be noted that, in the process of closing or demolding the upper mold 1 and the lower mold 2, the inclined guide post 8 moves vertically along with the upper mold 1, meanwhile, due to the inclined arrangement of the inclined guide post 8, inclined thrust is generated to press against the side push block 7 in the vertical movement process, and due to the fact that the side push block 7 is arranged on the lower mold 2, the component force of the inclined thrust generated by the inclined guide post 8 in the vertical direction is counteracted by the lower mold 2, and the component force corresponding to the direction facing the mold bulge 3 acts on the side push block 7 to enable the side push block 7 to move towards or away from the mold bulge 3, so that the side mold 4 is driven to be correspondingly embedded or separated from the mold bulge 3.
In order to achieve the separation of the side mold 4 from the mold protrusion 3 after the demolding of the upper mold 1 and the lower mold 2, in some embodiments, referring to fig. 1 to 3, a side of the side pushing block 7 close to the mold protrusion 3 is further provided with a guide post 9 extending towards the mold protrusion 3, a first elastic member 10 is sleeved on the guide post 9, and two free ends of the first elastic member 10 respectively abut against a side wall of the second row slot 202 and a side wall of the side pushing block 7, wherein the first elastic member 10 is used for providing elastic force along the axial direction of the guide post 9 to separate the side mold 4 from the mold protrusion 3 when the upper mold 1 and the lower mold 2 are separated.
The arrangement is that the side pushing block 7 drives the side die 4 to be far away from the die bulge 3 by the acting force provided by the first elastic piece 10 pushing against the second row position groove 202, so that the demolding of the side die and the die bulge is accelerated, and the ejection and demolding speed of a product is accelerated.
When the upper die 1 and the lower die 2 are combined, the first elastic member 10 is in a compressed state, and provides elastic force to buffer the movement of the side pushing block 7 towards the die bulge 3, and when the upper die 1 and the lower die 2 are released, the upper die 1 releases pushing force generated by pressing, at this time, the first elastic member 10 is converted from the compressed state to the telescopic state and releases the force stored in the compressed state, and because the lower die 2 is fixed, when the first elastic member 10 is converted from the compressed state to the telescopic state, the released elastic force acts on the side pushing block 7 to push the side pushing block 7 only laterally, so that the side pushing block 7 is driven to drive the side die 4 to separate from the die bulge 3.
It will be appreciated that in other embodiments, the first elastic member 10 that provides elastic force to move the side push block 7 by the first elastic member 10 is suitable for the first elastic member 10 of this embodiment. Such as optional springs and compression springs.
Fig. 4 is a perspective view of an injection mold according to an embodiment of the present application, fig. 5 is an exploded view of the injection mold according to an embodiment of the present application, in order to assemble a complete mold structure, referring to fig. 4 and 5, in some embodiments, the injection mold further includes a base 11, square irons 12, a bottom needle plate 13 and an ejector plate 14, two square irons 12 disposed at intervals are disposed on the base 11, two square irons 12 are disposed on both sides of the base 11 in a transverse direction (refer to an X direction in fig. 5), a lower mold 2 is fixedly disposed on the two square irons 12, the lower mold 2 is further movably connected with an upper mold 1 by a first guide post 15 in cooperation with a first guide sleeve 16, the lower mold 2 is further connected with the base 11 by a plurality of second guide posts 16, the bottom needle plate 13 and the ejector plate 14 are disposed between the two square irons 12 and are disposed on the second guide posts 16, a plurality of ejector pins 17 movably penetrating through the lower mold 2, the mold protrusions 3 and extending into a first molding cavity are disposed on the ejector plate 14, and the ejector plate 6 is further connected with the bottom needle plate 13 after penetrating through the ejector plate 14; wherein, the bottom needle plate 13 and the ejector plate 14 can be pushed by an external ejector rod to move the ejector pin 17 and/or the inclined ejector assembly 6, and the formed automobile lamp shell 001 is ejected out for stripping.
Fig. 6 is a structural view of an oblique ejection assembly according to an embodiment of the present application, in order to implement quick ejection and demolding of an injection molded product, in some embodiments, referring to fig. 1 to 6, the oblique ejection assembly 6 includes a mounting seat 61, a slide block 62, an ejector pin 63 and an ejector pin 64, the mounting seat 61 is fixedly arranged on a bottom needle plate 13, the mounting seat 61 is provided with a chute 611 extending in a transverse direction perpendicular to the base 11, the slide block 62 is movably arranged in the chute 611, one end of the slide block 62 corresponding to the extending direction of the chute 611 is provided with an oblique wedge surface 621, the ejector pin 63 is vertically arranged and fixedly connected with the lower die 2, one end of the ejector pin 63 facing away from the lower die 2 is provided with an oblique wedge tongue 631 corresponding to the oblique wedge surface 621, one end of the ejector pin 64 is vertically arranged and is clamped with the slide block 62, and the other end of the ejector pin 64 is vertically connected with the first insert die 5, wherein the ejector pin 63 is used for making the oblique wedge tongue 631 abut against the oblique wedge surface 621 and pushing the slide block 62 to move along the chute 611 when the bottom needle plate 13 drives the mounting seat 61 and the slide block 62 to move vertically; a slider 62 for driving the ejector rod 64 to deflect when moving along the chute 611; and the ejector rod 64 is used for driving the first insert mold 5 to eject relative to the mold protrusion 3 during deflection and vertical movement.
It will be appreciated that in the process of vertically jacking the bottom needle plate 13, the inclined wedge tongue 631 abuts against the inclined wedge surface 621, so that the sliding block 62 is pushed to move along the sliding groove 611 and drive the ejector rod 64 to deflect, and the vertical movement of the bottom needle plate 13 is followed, and the corresponding drive first insert 5 is ejected relative to the die bulge 3, so that the formed product is ejected from the first forming bulge.
It should be noted that, the thrust force generated by the vertical movement of the ejector pin 63 against the inclined wedge surface 621 is converted into two directional force components, one of which is a force component in the vertical direction, the force component is offset by the mounting seat 61, and the other is a force component in the extending direction of the chute 611, and the force component is converted into a thrust force pushing the slide block 62 to move along the chute 611, so that, in the mold closing or releasing of the upper mold 1 and the lower mold 2, the first insert mold 5 is correspondingly engaged or ejected with respect to the mold protrusion 3.
In order to realize the connection between the slide block 62 and the ejector rod 64 and enable the ejector rod 64 to return to the inclined ejection position, in some embodiments, referring to fig. 6, the inclined ejection assembly 6 further includes a second elastic member 65, a first accommodating hole (not shown in the drawings) is further provided at one end of the slide block 62 facing away from the inclined wedge surface 621, the second elastic member 65 is disposed in the first accommodating hole, one end of the second elastic member 65 facing away from the slide block 62 abuts against the mounting seat 61, a clamping hole 622 is further provided on the slide block 62, a concave table (not shown in the drawings) corresponding to the clamping hole 622 is provided on a side wall of the ejector rod 64, wherein the concave table is movably buckled with the clamping hole 622, so that the ejector rod 64 is clamped with the slide block 62; the second elastic member 65 is configured to provide an elastic force along a sliding direction of the slider 62 when the inclined wedge tongue 631 is separated from the inclined wedge surface 621, so as to enable the slider 62 to slide back; the sliding block 62 is used for driving the ejector rod 64 to swing when the sliding block slides back and driving the first insert die 5 to be matched with the die boss 3.
It can be appreciated that, when the inclined wedge tongue 631 is separated from the inclined wedge surface 621, the sliding block 62 drives the ejector rod 64 to swing and return by the acting force provided by the second elastic element 65, and the first insert mold 5 and the mold protrusion 3 are matched with the vertical return of the bottom needle plate 13 to realize rapid return.
In order to implement the molding of the locking lug 004 and the locking lug hole 005, in some embodiments, referring to fig. 1 to 4, a plurality of first grooves 106 matching with the locking lug 004 of the automobile lamp housing 001 are provided on the first parting surface 101, a first barrel 18 for molding the locking lug hole 005 is provided in the first groove 106, a first cavity table 203 corresponding to the first groove 106 is provided on the second parting surface 201, a second barrel 19 corresponding to the first barrel 18 is provided on the first cavity table 203, wherein the first groove 106, the first cavity table 203, the first barrel 18 and the second barrel 19 are combined to form a third cavity for molding the locking lug 004.
The first cavity 106 and the first cavity 203 are combined to form a cavity for forming the lock lug 004, and the first barrel 18 and the second barrel 19 are inserted into the cavity, so that the lock lug hole 005 of the lock attachment connector is formed in the lock lug 004.
In order to realize that the ejector pin retreats to form a complete first molding cavity when the injection mold is closed, in one embodiment, a third elastic piece 20 is further sleeved on the second guide post 16, two vertical ends of the third elastic piece 20 respectively prop against the ejector pin plate 14 and the lower mold 2, wherein the third elastic piece 20 is used for pushing the ejector pin plate 14 to drive the ejector pin 17 and/or the inclined ejector assembly 6 to relatively move away from the lower mold 2 after ejection and stripping are completed, so that the ejector pin 17 and/or the first insert mold 5 are returned.
When the injection mold is in a material removing state, the third elastic member 20 is in a compressed state and provides elastic force to buffer the vertical upward movement of the ejector plate 14, and after the injection mold is in a material removing state, the external ejector rod releases the pushing acting force, at this time, the third elastic member 20 is converted into a telescopic state from the compressed state and releases the force stored in the compressed state, and since the lower mold 2 is fixed, the released elastic force only acts on the ejector plate 14 when the third elastic member 20 is converted into the telescopic state from the compressed state, so as to drive the ejector plate 14 to move downward to complete the return of the ejector pins 14 and/or the oblique ejector assembly 6.
It will be appreciated that in other embodiments, the third elastic member 20 that provides elastic force to move the ejector plate 14 by the third elastic member 20 is suitable for the third elastic member 20 of the present embodiment. Such as optional springs and compression springs.
In order to achieve rapid engagement of the upper die 1 with the lower die 2, in one embodiment, referring to fig. 1 to 6, first mortises 107 are provided at four apex angles of the first parting plane 101; the four vertex angles of the second parting surface 201 are respectively provided with a first tenon 204 matched with the first mortise 107; wherein, the first tenon 204 is embedded with the first tenon groove 107, so that the upper die 1 and the lower die 2 are embedded.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustrating the invention and are not to be construed as limiting the invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.
Claims (1)
1. The injection mold for the automobile lamp shell comprises an upper mold and a lower mold which is arranged opposite to the upper mold, wherein a first parting surface is arranged on the lower surface of the upper mold, two concave cavities which correspond to the upper surface of the automobile lamp shell are arranged on the first parting surface in a mirror image mode, a second parting surface is arranged on the upper surface of the lower mold, a mold bulge which is matched with the corresponding concave cavity is arranged on the second parting surface, the injection mold is characterized in that the first parting surface is also provided with a first running groove, the second parting surface is also provided with a second running groove, the first running groove and the second running groove are arranged opposite to each other to form a side mold groove, a side mold which is movably embedded with the mold bulge is arranged in the side mold groove, a first insert mold which is movably embedded with the mold bulge is further arranged on the periphery side of the mold bulge, the first insert mold is in transmission connection with an oblique top component, the mold bulge is embedded with the first insert mold so as to form a first mold bulge, the first mold bulge is formed, the first mold bulge and the first mold bulge is used for forming the automobile lamp shell after the automobile lamp shell is ejected out, and the first mold bulge is used for forming the cavity of the automobile lamp shell; wherein,
The die convex comprises a cylindrical body, wherein the cylindrical body is provided with a first parting table top, the first parting table top is provided with a first type cave, a first type convex insert is arranged in the first type cave, a second parting table top corresponding to the first parting table top is arranged in the cave, and a second type cave is arranged at the position, corresponding to the first type convex insert and the first type cave, of the second parting table top, wherein the first parting table top and the second parting table top are matched to form a first cavity for forming a car lamp mounting table, and the first type cave, the first type convex insert and the second type cave are combined to form a second cavity for forming a car lamp hole;
a side pushing block is arranged in the second row of position grooves and connected with the side die, an inclined guide hole which is obliquely arranged is formed in the side pushing block, an inclined guide pillar is also arranged in the first row of position grooves, and the inclined guide pillar is used for penetrating into the inclined guide hole and driving the side pushing block to drive the side die to move towards the die bulge so as to be embedded with the die bulge when the upper die and the lower die are combined;
The side pushing block is further provided with a guide column extending towards the die boss, a first elastic piece is sleeved on the guide column, two free ends of the first elastic piece respectively lean against the side wall of the second row of position grooves and the side wall of the side pushing block, and the first elastic piece is used for providing elastic force along the axial direction of the guide column when the upper die and the lower die are separated, so that the side die and the die boss are separated;
The injection mold further comprises a base, square irons, a bottom needle plate and an ejector plate, wherein two square irons are arranged on the base at intervals, the two square irons are arranged on two sides of the base in the transverse direction, the lower mold is fixedly arranged on the two square irons, the lower mold is further movably connected with the upper mold through a first guide post matched with a first guide sleeve, the lower mold is further connected with the base through a plurality of second guide posts, the bottom needle plate and the ejector plate are arranged between the two square irons and are arranged on the second guide posts in a penetrating mode, a plurality of ejector pins which movably penetrate through the lower mold, protrude from the lower mold and extend into the first forming cavity are arranged on the ejector plate, and the oblique ejector assembly is further connected with the bottom needle plate after penetrating through the ejector plate; the bottom needle plate and the thimble plate can be pushed by an external ejector rod to move, so that the thimble and/or the inclined ejector assembly can move, and the formed automobile lamp shell is ejected out of the material;
The oblique ejection assembly comprises a mounting seat, a sliding block, an ejector pin and an ejector rod, wherein the mounting seat is fixedly arranged on the bottom needle plate, the mounting seat is provided with a sliding groove which is perpendicular to the transverse direction of the base, the sliding block is movably arranged in the sliding groove, one end of the sliding block corresponding to the extending direction of the sliding groove is provided with an oblique wedge surface, the ejector pin is vertically arranged and fixedly connected with the lower die, one end of the ejector pin, which is away from the lower die, is provided with an oblique wedge tongue corresponding to the oblique wedge surface, the ejector rod is vertically arranged, one vertical end of the ejector rod is connected with the sliding block in a clamping manner, and the other vertical end of the ejector rod is connected with the first insert die, wherein the ejector pin is used for enabling the oblique wedge tongue to abut against the oblique wedge surface and pushing the sliding block to move along the sliding groove when the bottom needle plate drives the mounting seat and the sliding block to vertically move; the sliding block is used for driving the ejector rod to swing when moving along the sliding groove; the ejector rod is used for driving the first insert die to be ejected out relative to the die boss when the ejector rod swings and moves vertically;
The inclined top assembly further comprises a second elastic piece, a first accommodating hole is further formed in one end, away from the inclined wedge surface, of the sliding block, the second elastic piece is arranged in the first accommodating hole, one end, away from the sliding block, of the second elastic piece abuts against the mounting seat, a clamping hole is further formed in the sliding block, a concave table corresponding to the clamping hole is formed in the side wall of the ejector rod, and the concave table is movably buckled with the clamping hole, so that the ejector rod is clamped with the sliding block; the second elastic piece is used for providing elastic force along the sliding direction of the sliding block when the inclined wedge tongue is separated from the inclined wedge surface so as to enable the sliding block to slide back; the sliding block is used for driving the ejector rod to deflect when the sliding block slides back and driving the first insert die to be matched with the die bulge;
The first parting surface is provided with a plurality of first hole slots matched with the locking lugs of the automobile lamp shell, a first ejector sleeve used for forming locking lug holes is arranged in the first hole slots, the second parting surface is provided with a first hole table corresponding to the first hole slots, the first hole table is provided with a second ejector sleeve corresponding to the first ejector sleeve, and the first hole slots, the first hole table, the first ejector sleeve and the second ejector sleeve are combined to form a third cavity used for forming the locking lugs;
A third elastic piece is sleeved on the second guide post, and two vertical ends of the third elastic piece are respectively propped against the ejector plate and the lower die, wherein the third elastic piece is used for propping against the ejector plate to drive the ejector pin and/or the inclined ejector assembly to relatively move away from the lower die after ejection and stripping are completed, so that the ejector pin and/or the first insert die are returned;
The four vertex angles of the first parting surface are respectively provided with a first mortise; the four vertex angles of the second parting surface are respectively provided with a first tenon matched with the first tenon groove; the first tenon is embedded with the first mortise, so that the upper die and the lower die are embedded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524367.XA CN114147929B (en) | 2021-12-14 | 2021-12-14 | Injection mold of automobile lamp shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524367.XA CN114147929B (en) | 2021-12-14 | 2021-12-14 | Injection mold of automobile lamp shell |
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| CN114147929A CN114147929A (en) | 2022-03-08 |
| CN114147929B true CN114147929B (en) | 2024-04-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006015767A1 (en) * | 2006-04-04 | 2007-10-18 | Kunststoff-Fröhlich GmbH | Slide system comprises slide with lug which forms aperture in wall of injection molded component, slide being withdrawn after molding in direction at right angles to direction allowing removal of molded component |
| JP2014113769A (en) * | 2012-12-11 | 2014-06-26 | Koito Mfg Co Ltd | Resin molding and vehicle lighting fixture component |
| CN208854946U (en) * | 2018-09-26 | 2019-05-14 | 东莞市杰洋模具有限公司 | A kind of mold of machine-shaping headlight for vehicles shell |
| CN209365261U (en) * | 2018-08-23 | 2019-09-10 | 宁波斯穆汽车模具有限公司 | A kind of Mold Core-pulling Mechanism of Automobile lamp housing |
| CN214491428U (en) * | 2021-04-02 | 2021-10-26 | 重庆精卓模具有限公司 | Front fog lamp holder injection mold |
-
2021
- 2021-12-14 CN CN202111524367.XA patent/CN114147929B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006015767A1 (en) * | 2006-04-04 | 2007-10-18 | Kunststoff-Fröhlich GmbH | Slide system comprises slide with lug which forms aperture in wall of injection molded component, slide being withdrawn after molding in direction at right angles to direction allowing removal of molded component |
| JP2014113769A (en) * | 2012-12-11 | 2014-06-26 | Koito Mfg Co Ltd | Resin molding and vehicle lighting fixture component |
| CN209365261U (en) * | 2018-08-23 | 2019-09-10 | 宁波斯穆汽车模具有限公司 | A kind of Mold Core-pulling Mechanism of Automobile lamp housing |
| CN208854946U (en) * | 2018-09-26 | 2019-05-14 | 东莞市杰洋模具有限公司 | A kind of mold of machine-shaping headlight for vehicles shell |
| CN214491428U (en) * | 2021-04-02 | 2021-10-26 | 重庆精卓模具有限公司 | Front fog lamp holder injection mold |
Non-Patent Citations (1)
| Title |
|---|
| "轿车左前灯灯座本体注塑模具结构设计";吴晋等;"工程塑料应用";第45卷(第10期);第70～75页 * |
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