CN109333926B - A mould for making automobile-used audio amplifier apron - Google Patents

A mould for making automobile-used audio amplifier apron Download PDF

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Publication number
CN109333926B
CN109333926B CN201811318175.1A CN201811318175A CN109333926B CN 109333926 B CN109333926 B CN 109333926B CN 201811318175 A CN201811318175 A CN 201811318175A CN 109333926 B CN109333926 B CN 109333926B
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Prior art keywords
die
plate
mold core
core
mold
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CN201811318175.1A
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CN109333926A (en
Inventor
吴志光
朱飞
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Ningbo Shuaitelong Group Co Ltd
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Ningbo Shuaitelong Group Co Ltd
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Priority to CN201811318175.1A priority Critical patent/CN109333926B/en
Publication of CN109333926A publication Critical patent/CN109333926A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2602Mould construction elements
    • B29C45/2606Guiding or centering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/2628Moulds with mould parts forming holes in or through the moulded article, e.g. for bearing cages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C2045/4063Removing or ejecting moulded articles preventing damage to articles caused by the ejector
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof

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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 a die for manufacturing a cover plate of a sound box for a vehicle, which comprises a forming device, a forming device and a forming device, wherein the forming device comprises an upper die core and a lower die core, the upper die core is arranged above the lower die core, and a die cavity for forming a product is formed by surrounding the upper die core; the lower mold core is internally provided with a plurality of inclined jacking blocks, and the upper parts of the inclined jacking blocks are curved surfaces. The pouring device is arranged in the upper mold core; the middle is provided with a channel for flowing liquid plastic, and the channel is communicated with the die cavity. The die carrier device is arranged at the outer side of the forming device and comprises a first guide component, an ejection component, a reset component and a rectangular fixing component; the first guide assembly is arranged at four corners of the fixed assembly, the ejection assembly is movably arranged in the lower mold core, and the reset assembly is arranged in the fixed assembly. The invention has the advantages that the die inclined ejection block assists ejection balance; the die is accurate in guiding and low in failure rate.

Description

A mould for making automobile-used audio amplifier apron
Technical Field
The invention relates to the technical field of dies, in particular to a die for manufacturing a cover plate of a sound box for a vehicle.
Background
A plastic mold is a short term for a combination mold for compression molding, extrusion molding, injection, blow molding, and low foaming molding. The coordination change of the male die, the female die and the auxiliary forming system can process a series of plastic parts with different shapes and different sizes. During injection molding, the mold is clamped on the injection molding machine, molten plastic is injected into the molding cavity, cooled and shaped in the cavity, then the upper mold and the lower mold are separated, the product is ejected out of the mold from the mold cavity through the ejection system, finally the mold is closed again for next injection molding, and the whole injection molding process is circularly performed. The productivity of the product produced by the die is higher than that of other production modes.
The tools and products used in daily production and life are as large as the base and the machine body shell of the machine tool, as small as the shell of a head screw, a button and various household appliances, and have no close relation with the die. The shape of the mold determines the shape of the products and the quality and accuracy of the mold processing determines the quality of the products.
Because the automobile has great demand in daily life, the automobile sound box cover plate is one of the indispensable parts, and the automobile sound box cover plate can meet the demand of the existing market only through mass production of the mould. Most of the existing automobile sound box cover plates are manufactured through plastic molds; however, the existing mold for producing the cover plate of the sound box for the vehicle has the following problems: because the design of the ejection system is unreasonable, the product is easy to be ejected and deformed, and the product rejection rate is high; the convex columns of the molding sound box holes are independently arranged on the lower mold core, so that the molding sound box holes are easily broken in the repeated mold opening and closing process, and the mold failure rate is high.
In summary, in order to solve the above problems of the existing mold for producing the cover plate of the vehicle speaker, a mold with balanced ejection and low failure rate needs to be designed.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a die for manufacturing a cover plate of a sound box for a vehicle, which has balanced ejection and low failure rate.
The invention solves the technical problems by adopting the technical scheme that the invention provides a die for manufacturing a cover plate of a sound box for a vehicle, which comprises the following components:
the forming device comprises an upper mold core and a lower mold core, wherein the upper mold core is arranged above the lower mold core, and a mold cavity for forming a product is formed by surrounding the upper mold core; the lower mold core is internally provided with a plurality of inclined jacking blocks, and the upper parts of the inclined jacking blocks are curved surfaces;
the pouring device is arranged in the upper mold core; the middle is provided with a channel for flowing liquid plastic, and the channel is communicated with the die cavity;
the die carrier device is arranged at the outer side of the forming device and comprises a first guide component, an ejection component, a reset component and a rectangular fixing component; the first guide assembly is arranged at four corners of the fixed assembly, the ejection assembly is movably arranged in the lower mold core, and the reset assembly is arranged in the fixed assembly.
In the above-mentioned mold for manufacturing a cover plate of a vehicle sound box, the plurality of inclined top blocks are engraved with different marking characters at corresponding positions of the lower mold core, and each character corresponds to a corresponding inclined top block.
In the above mold for manufacturing the cover plate of the vehicle sound box, the upper mold core and the lower mold core are also provided with second guide components, which comprise guide bosses and guide cylinders matched with the guide bosses; the guide cylinder is arranged in the upper mold core, and the guide boss is arranged in the lower mold core;
the upper mold core and the lower mold core are fixedly provided with a plurality of convex columns, the section of each convex column from the top to the bottom is gradually increased, and the height of the convex column on the lower mold core is larger than that of the convex column of the upper mold core; the center of the upper mold core is also provided with a through hole.
In the above-mentioned mould for manufacturing the cover plate of the vehicle sound box, the pouring device comprises a sprue bush and a positioning ring 22, wherein the sprue bush is arranged in the through hole of the upper mould core, and the positioning ring 22 is arranged at the top of the mould frame device and is concentric with the sprue bush; the center of the sprue bush is provided with a channel for liquid plastic to flow, the diameter of the channel is gradually increased from top to bottom, and the top of the channel is provided with a spherical groove.
In the above-mentioned mould for making the car audio amplifier apron, the said fixed assembly includes upper die base plate, upper template, lower template, two die feet and bottom plate that set up from top to bottom;
the upper die plate is fixedly connected with the upper die base plate through screws, and the upper die core is arranged in the upper die plate;
the two die legs are symmetrically arranged on the lower side of the lower die plate, screws penetrate through the bottom plate, the die legs and the lower die plate to be fixedly connected, and the lower die core is arranged in the lower die plate.
In the above-mentioned mould for making automobile-used audio amplifier apron, leave the exhaust clearance of at least 1 millimeter between cope match-plate pattern and the lower bolster, and all install the briquetting in cope match-plate pattern and the lower bolster, the briquetting protrusion is in the surface of cope match-plate pattern, lower bolster.
In the above-mentioned mould for making automobile-used audio amplifier apron, first direction subassembly is including guide pillar and guide pin bushing, and the guide pin bushing is installed in the cope match-plate pattern, and the guide pillar is installed in the lower bolster, offer the multiturn oil groove on the guide pillar.
In the above-mentioned mold for manufacturing a vehicle speaker cover plate, the ejector assembly includes a ejector pin bottom plate, an ejector pin panel, and a plurality of ejector pins, the ejector pin bottom plate is disposed above the bottom plate; the thimble panel is fixedly connected above the thimble bottom plate through a screw;
the lower parts of the plurality of ejector pins are arranged in the ejector pin panel, and the upper parts of the ejector pins penetrate through the lower die plate and the lower die core to be connected with the die cavity.
In the above-mentioned mould used for making the car loudspeaker box cover plate, the said reset assembly includes reset lever and baffle post, the baffle post is installed in upper template; the lower part of the reset rod is arranged in the thimble panel, the upper part of the reset rod passes through the lower die plate to be contacted with the baffle column, and the reset rod is sleeved with a reset spring.
In the above-mentioned mould for making automobile-used audio amplifier apron, die carrier device still includes the support column, sets up between lower bolster and bottom plate, links firmly with both through the screw.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, a plurality of inclined ejector blocks are used for ejecting products, the curved surface structure of the loudspeaker box cover plate is formed at the upper part of each inclined ejector block, and the inclined ejector blocks assist ejection, so that the ejection area is large, ejection is balanced, and the products can be effectively prevented from being ejected and deformed;
2. the die adopts a guide post and a guide sleeve for guiding primary guide, and a guide boss and a guide cylinder of the upper die core and the lower die core for guiding secondary guide, so that the guide is accurate, and the upper die core and the lower die core are not easy to misplace; the guide boss and the guide cylinder positions of the upper mold core and the lower mold core can be used as lifting positions of the upper mold core and the lower mold core, and lifting holes are not required to be additionally formed;
3. the lower mold core is provided with error-proof marks at the positions of each inclined top block, so that the positions of the inclined top blocks can be effectively prevented from being misplaced by an assembler;
4. the baffle column is arranged right above the reset rod, so that the upper die plate can be prevented from being sunken by the top, and the ejection assembly is accurately reset;
5. the convex column of the hole of the formed sound box cover is formed by adopting the upper mold core and the lower mold core, so that the single-side height of the convex column is effectively reduced, the convex column is prevented from being broken in the repeated mold opening and closing process, and the failure rate of the mold is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view in partial cutaway of FIG. 1;
FIG. 3 is an exploded view of the overall structure;
FIG. 4 is a schematic view of a molding apparatus;
FIG. 5 is a schematic view of another view structure of FIG. 4;
fig. 6 is an enlarged schematic view of the stud.
In the figure, 1, a forming device; 11. an upper mold core; 12. a lower mold core; 13. an inclined top block; 14. a guide boss; 15. a guide cylinder; 16. a convex column; 17. marking characters; 2. a casting device; 21. a sprue bush; 22. a positioning ring; 23. a spherical groove; 3. a die carrier device; 31. a first guide assembly; 32. an ejection assembly; 33. a reset assembly; 34. a fixing assembly; 35. an upper die base plate; 36. an upper template; 37. a lower template; 38. a mold foot; 39. a bottom plate; 40. briquetting; 41. a support column; 311. a guide post; 312. guide sleeve; 321. a thimble bottom plate; 322. a thimble panel; 323. a thimble; 331. a reset lever; 332. a baffle column; 333. and a return spring.
Detailed Description
The technical scheme of the present invention will be described in further detail below by referring to the drawings and the detailed description, but the present invention is not limited to these examples.
As shown in fig. 1 to 6, a mold for manufacturing a cover plate of a speaker for a vehicle, comprising: a molding device 1, a pouring device 2 and a die carrier device 3.
The molding device 1 comprises an upper mold core 11 and a lower mold core 12, wherein the upper mold core 11 is arranged above the lower mold core 12, and a mold cavity for molding a product is formed by surrounding; the upper mold core 11 and the lower mold core 12 are respectively provided with a plurality of cooling water channels for cooling and solidifying the product, reducing the temperature of the mold and preventing the mold from being high in temperature; the joint of the water channel and the die carrier device 3 is sealed by a sealing ring, so that water leakage is prevented. A plurality of inclined jacking blocks 13 are arranged in the lower mold core 12, and the upper parts of the inclined jacking blocks 13 are curved surfaces; the curved surface structure of the loudspeaker box cover plate is formed on the upper portion of the inclined ejection block 13, and the inclined ejection block 13 assists ejection, so that the ejection area is large, ejection is balanced, and the product can be effectively prevented from being ejected to deform. Different marking characters 17 are carved on the corresponding positions of the lower mold core 12 on the plurality of inclined top blocks 13, and each character corresponds to the corresponding inclined top block 13; so as to prevent the assembler from misplacing the inclined top block 13. The lower part of the inclined ejector block 13 is arranged in an inclined ejector seat, the inclined ejector seat is arranged in the ejector pin panel 322, and the inclined ejector block 13 moves along with the driving of the ejector pin panel 322 to eject and reset.
The upper mold core 11 and the lower mold core 12 are also provided with a second guide assembly which comprises a guide boss 14 and a guide cylinder 15 matched with the guide boss 14; a guide cylinder 15 is installed in the upper mold core 11, and a guide boss 14 is installed in the lower mold core 12. When the die is closed, the guide post 311 and the guide sleeve 312 complete the first-stage guiding, and the guide boss 14 and the guide cylinder 15 cooperate with the second-stage guiding; the first-stage guide and the second-stage guide are accurate in guide, and the upper mold core and the lower mold core are not easy to misplace; and the positions of the guide bosses 14 of the upper mold core and the lower mold core and the mounting holes of the guide cylinder 15 can be used as the lifting positions of the upper mold core and the lower mold core, and a lifting hole or a technological screw hole does not need to be additionally formed. The upper mold core 11 and the lower mold core 12 are fixedly provided with a plurality of convex columns 16, the section of each convex column 16 from top to bottom is gradually increased, and the height of the convex column 16 on the lower mold core 12 is larger than that of the convex column 16 of the upper mold core 11; the height of the convex column 16 on the lower mold core 12 is higher than that of the convex column 16 on the upper mold core 11, so that the packing force of the product on the lower mold core 12 is larger than the holding force on the upper mold core 11, and the product is convenient to stay in the lower mold core 12; the convex column 16 is formed by adopting the upper mold core and the lower mold core, so that the single-side height of the convex column 16 is effectively reduced, the convex column 16 is prevented from being broken in the repeated mold opening and closing process, and the mold failure rate is reduced. The center of the upper mold core 11 is also provided with a through hole; for the sprue bush 21 to be mounted.
A pouring device 2 arranged in the upper mold core 11; the middle is provided with a channel for flowing liquid plastic, and the channel is communicated with the die cavity. The pouring device 2 comprises a sprue bush 21 and a positioning ring 22, wherein the sprue bush 21 is arranged in a through hole of the upper mold core 11, the positioning ring 22 is arranged at the top of the mold frame device 3, a channel for liquid plastic to flow is formed in the center of the sprue bush 21 concentric with the sprue bush 21, the diameter of the channel is gradually increased from top to bottom, the mold opening product is beneficial to being left on the lower mold core 12, and the runner is not broken; a spherical groove 23 is formed at the top of the channel and matched with the nozzle of the injection molding machine.
The die carrier device 3 is arranged outside the forming device 1 and comprises a first guiding component 31, an ejection component 32, a reset component 33 and a rectangular fixing component 34. The first guiding components 31 are arranged at four corners of the fixing component 34, the ejection component 32 is movably arranged in the lower mold core 12, and the reset component 33 is arranged in the fixing component 34. The fixing assembly 34 comprises an upper die plate 35, an upper die plate 36, a lower die plate 37, two die legs 38 and a bottom plate 39 which are arranged from top to bottom; the upper die plate 36 is fixedly connected with the upper die base plate 35 through screws, and the upper die core 11 is arranged in the upper die plate 36; the two die legs 38 are symmetrically arranged on the lower side of the lower die plate 37, screws penetrate through the bottom plate 39 and the die legs 38 to be fixedly connected with the lower die plate 37, and the lower die core 12 is arranged in the lower die plate 37. An exhaust gap of at least 1 mm is reserved between the upper die plate 36 and the lower die plate 37, so that gas in the die cavity is exhausted; the upper die plate 36 and the lower die plate 37 are respectively provided with a pressing block 40, the pressing blocks 40 protruding out of the surfaces of the upper die plate and the lower die plate are made of materials with higher hardness than the upper die plate and the lower die plate, and the pressing blocks 40 in the upper die plate and the lower die plate are contacted during die opening and die closing to prevent the lower die plate from being deformed by pressing.
The first guiding component 31 comprises a guide post 311 and a guide sleeve 312, the guide sleeve 312 is arranged in the upper die plate 36, the guide post 311 is arranged in the lower die plate 37, and a plurality of circles of oil grooves are formed in the guide post 311; due to the arrangement of the multi-circle oil grooves, high-temperature blocking is not easy to occur when the guide post 311 is in sliding fit with the guide sleeve 312.
The ejection assembly 32 comprises an ejector pin base plate 321, an ejector pin panel 322 and a plurality of ejector pins 323, and the ejector pin base plate 321 is arranged above the base plate; a lower limiting block is arranged below the thimble bottom plate 321 and used for controlling the lower limit of the return of the thimble 323, and the thimble panel 322 is fixedly connected above the thimble bottom plate 321 through a screw; the lower parts of a plurality of ejector pins 323 are arranged in the ejector pin panel 322, and the upper parts penetrate through the lower die plate 37 and the lower die core 12 to be connected with the die cavity. Because the head of the thimble 323 contacts with the surface of the product, in order to reduce the thimble mark, the head of the thimble 323 is made into a curved surface along with the curved surface of the product, so the tail of the thimble 323 is provided with an anti-rotation head, in particular, a straight edge is cut at the tail of the thimble 323 and is matched with a thimble groove in the thimble panel 322 so as to prevent the thimble 323 from rotating.
Reset assembly 33 includes a reset lever 331 and a post 332, post 332 mounted in upper die plate 36; the lower part of the reset rod 331 is arranged in the thimble panel 322, the upper part passes through the lower die plate 37 to be contacted with the baffle column 332, and the baffle column 332 can prevent the upper die plate 36 from being sunken by the top, so that the ejection assembly 32 is reset accurately; and a return spring 333 is sleeved on the return lever 331. After the die is opened, the ejection assembly 32 ejects the product, the reset spring 333 is stressed to generate compression deformation, and when the ejection force is withdrawn, the reset force of the reset spring 333 pushes the ejection assembly 32 to return to the initial position, so that reset is completed; the spring is utilized for resetting, the structure is simple, the action is rapid, and the resetting action can be completed without connecting a pull rod on the injection molding machine; the load of the injection molding machine is reduced.
The die carrier device 3 further comprises a support column 41 which is arranged between the lower die plate 37 and the bottom plate 39 and fixedly connected with the lower die plate 37 and the bottom plate 39 through screws. The support column 41 is located between the two mold legs 38, and bears the weight of the entire mold, preventing the mold from being deformed and generating a depression in the middle.
Preferably, lifting holes are formed in the side faces of the front template and the rear template, lifting rings are arranged in the lifting holes, and when the die is transported or the die is lifted up and down, the die is conveniently lifted up. Corner grooves are formed in four corners between the upper die plate and the lower die plate, and when the dies are blocked and cannot be opened in the working process of the dies, the pry bar is inserted into the corner grooves to pry the upper die plate and the lower die plate apart. A cold material cavity is formed right below the sprue bush 21 for accommodating the front cold material.
In the working process, the mould is clamped on an injection molding machine, and the nozzle of the injection molding machine is matched with the sprue bush 21; the liquid plastic is sprayed out from the nozzle, and the cold material at the front end enters the cold material cavity and does not enter the die cavity; liquid plastic enters a die cavity surrounded by the upper die core and the lower die core through the sprue bush 21, and injection molding is stopped when the whole die cavity is filled with the liquid plastic; after the liquid plastic is cooled and solidified, the injection molding machine opens the mold, the upper mold plate 36 and the upper mold core 11 are fixed, the injection molding machine drives the lower mold core 12 and the lower mold plate 37 to retreat, the upper mold core 11 and the lower mold core 12 are pulled open, and the product is left in the lower mold core 12 because the holding force on the lower mold core 12 is larger than the holding force on the upper mold core 11; the ejector rod in the injection molding machine pushes the ejector pin base plate 321 to move upwards, the ejector pin 323 and the inclined ejector block 13 eject the product upwards, and meanwhile, the inclined ejector block 13 is separated from the buckling position of the product, and the product is taken out; the ejection force is withdrawn, and the ejection assembly 32 returns under the action of the reset assembly 33; the ejection assembly 32 and the inclined ejection block 13 return, and the injection molding machine pushes the lower die plate 37 and the lower die core 12 to perform die assembly, so that the next injection molding is performed.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (9)

1. A mold for manufacturing a cover plate of a sound box for a vehicle, comprising:
the forming device comprises an upper mold core and a lower mold core, wherein the upper mold core is arranged above the lower mold core, and a mold cavity for forming a product is formed by surrounding the upper mold core; the lower mold core is internally provided with a plurality of inclined jacking blocks, and the upper parts of the inclined jacking blocks are used for forming a curved surface structure of the loudspeaker box cover plate;
the pouring device is arranged in the upper mold core; the middle is provided with a channel for flowing liquid plastic, and the channel is communicated with the die cavity;
the die carrier device is arranged at the outer side of the forming device and comprises a first guide component, an ejection component, a reset component and a rectangular fixing component; the first guide components are arranged at four corners of the fixed component, the ejection component is movably arranged in the lower mold core, and the reset component is arranged in the fixed component;
the upper mold core and the lower mold core are fixedly provided with a plurality of convex columns, the convex columns are used for forming holes in the cover plate of the sound box, the section of each convex column from the top to the bottom is gradually increased, and the height of the convex column on the lower mold core is larger than that of the convex column of the upper mold core; the center of the upper mold core is also provided with a through hole;
different marking characters are carved on the corresponding positions of the lower mold core on the plurality of inclined top blocks, and each character corresponds to the corresponding inclined top block.
2. The mold for manufacturing the cover plate of the sound box for the vehicle according to claim 1, wherein the upper mold core and the lower mold core are further provided with a second guide assembly, and the second guide assembly comprises a guide boss and a guide cylinder matched with the guide boss; the guide cylinder is arranged in the upper mold core, and the guide boss is arranged in the lower mold core.
3. A mould for manufacturing a cover plate of a sound box for a vehicle according to claim 2, wherein the pouring device comprises a sprue bush and a positioning ring, the sprue bush is arranged in a through hole of an upper mould core, and the positioning ring is arranged at the top of the mould frame device and is concentric with the sprue bush; the center of the sprue bush is provided with a channel for liquid plastic to flow, the diameter of the channel is gradually increased from top to bottom, and the top of the channel is provided with a spherical groove.
4. A mold for manufacturing a cover plate of a speaker box for a vehicle according to claim 2, wherein the fixing assembly comprises an upper mold base plate, an upper mold plate, a lower mold plate, two mold legs and a bottom plate which are arranged from top to bottom;
the upper die plate is fixedly connected with the upper die base plate through screws, and the upper die core is arranged in the upper die plate;
the two die legs are symmetrically arranged on the lower side of the lower die plate, screws penetrate through the bottom plate, the die legs and the lower die plate to be fixedly connected, and the lower die core is arranged in the lower die plate.
5. The mold for manufacturing a cover plate of a speaker for a vehicle according to claim 4, wherein an exhaust gap of at least 1 mm is left between the upper and lower mold plates, and press blocks are installed in both the upper and lower mold plates, the press blocks protruding from the surfaces of the upper and lower mold plates.
6. The mold for manufacturing a cover plate of a sound box for a vehicle according to claim 4, wherein the first guiding component comprises a guide post and a guide sleeve, the guide sleeve is arranged in the upper mold plate, the guide post is arranged in the lower mold plate, and a plurality of circles of oil grooves are formed in the guide post.
7. The mold for manufacturing a cover plate of a vehicle speaker of claim 4, wherein the ejector assembly comprises an ejector pin base plate, an ejector pin panel and a plurality of ejector pins, the ejector pin base plate being disposed above the base plate; the thimble panel is fixedly connected above the thimble bottom plate through a screw;
the lower parts of the plurality of ejector pins are arranged in the ejector pin panel, and the upper parts of the ejector pins penetrate through the lower die plate and the lower die core to be connected with the die cavity.
8. The mold for manufacturing a cover plate of a speaker box for a vehicle according to claim 7, wherein the reset assembly comprises a reset lever and a blocking post, the blocking post being installed in the upper mold plate; the lower part of the reset rod is arranged in the thimble panel, the upper part of the reset rod passes through the lower die plate to be contacted with the baffle column, and the reset rod is sleeved with a reset spring.
9. The mold for manufacturing a cover plate of a speaker box for a vehicle according to claim 7, wherein the mold frame device further comprises a support column arranged between the lower mold plate and the bottom plate, and fixedly connected with the lower mold plate and the bottom plate through screws.
CN201811318175.1A 2018-11-07 2018-11-07 A mould for making automobile-used audio amplifier apron Active CN109333926B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811318175.1A CN109333926B (en) 2018-11-07 2018-11-07 A mould for making automobile-used audio amplifier apron

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Application Number Priority Date Filing Date Title
CN201811318175.1A CN109333926B (en) 2018-11-07 2018-11-07 A mould for making automobile-used audio amplifier apron

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CN109333926A CN109333926A (en) 2019-02-15
CN109333926B true CN109333926B (en) 2023-10-17

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CN110053222A (en) * 2019-06-03 2019-07-26 深圳市国凯精密制品有限公司 A kind of high-accuracy limit linkage board mold of safe case lock body
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