WO2017000818A1 - Moule pour corps de boîte à structure creuse de dispositif audio polymère et son procédé de fabrication de corps de boîte de dispositif audio - Google Patents

Moule pour corps de boîte à structure creuse de dispositif audio polymère et son procédé de fabrication de corps de boîte de dispositif audio Download PDF

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Publication number
WO2017000818A1
WO2017000818A1 PCT/CN2016/086697 CN2016086697W WO2017000818A1 WO 2017000818 A1 WO2017000818 A1 WO 2017000818A1 CN 2016086697 W CN2016086697 W CN 2016086697W WO 2017000818 A1 WO2017000818 A1 WO 2017000818A1
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WIPO (PCT)
Prior art keywords
mold
core
cavity
mould
resin
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PCT/CN2016/086697
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English (en)
Chinese (zh)
Inventor
陈建新
Original Assignee
陈建新
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Publication date
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Publication of WO2017000818A1 publication Critical patent/WO2017000818A1/fr

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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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics

Definitions

  • the invention relates to the technical field of production of an acoustic box, in particular to a mold of a hollow structure polymer acoustic box and a method for manufacturing the same.
  • the mold of the existing resin sound box mainly includes left and right molds. In order to form the hollow structure of the box, it is mainly carried out by means of shaking. The resin is injected into the cavity, and the mold is manually turned over to form a layer of paint on the inner wall of the cavity, and then the case is formed by vacuum curing.
  • the acoustic box body produced by the mold has inconsistent wall thickness, and the inner wall is not smooth.
  • the density of the produced resin sound is only 1.1-2.2 g/cm 3 , and the sound box body is easy to resonate when used, resulting in poor sound effect. .
  • the assembly holes on the housing are not very accurate, and cracks are likely to occur, so that the assembled sound box has poor sealing performance and is prone to air leakage. It can be seen that the existing resin sound has the following technical problems: the wall thickness of the box is inconsistent, and the density is low, which affects the sound effect.
  • the mold of the present invention solves the problem of inconsistent wall thickness of the existing resin acoustic box, and the production thereof is convenient to solve the problem of low density.
  • the present invention provides the following technical solutions:
  • a mold of a hollow structure polymer sound box comprising a fixing jacket and a silicone mold, the fixing jacket being detachably disposed outside the silicone mold, the silicone mold comprising a cavity, a core and a partial mold, The edge of the cavity is connected to the edge portion of the core, in the cavity, the core The other edge is provided with the partial die.
  • the core is placed inside the cavity, and the gap between the core and the cavity forms an injection cavity.
  • a pouring hole is formed in the injection cavity.
  • the core is fixed inside the cavity, and the inner cavity of the box is formed by the mold to ensure that the wall thickness of the produced box can be uniform.
  • the fixed jacket can be made of gypsum, ABS, PPT, metal or the like.
  • the fixing jacket includes an inner sub-case and an outer sub-sleeve, the outer sub-sleeve fixing an outer portion of the cavity, and the inner sub-sleeve is inserted into an inner portion of the core to
  • the bottom of the inner sub-casing is connected to the cavity, the bottom cross-sectional dimension of the inner sub-sleeve is not greater than the top cross-sectional dimension thereof, the core is provided with a thickening portion, and the thickening portion is disposed at the inner side of the core Wide.
  • the shape of the core is large in the middle, the ends are small, or the bottom of the core is larger than the size of the top, these types of cores are difficult to lay and difficult to demold.
  • a thickening portion is provided at the widest part of the core, and the inner wall of the core is reduced in size by the thickening portion, so that the bottom cross-sectional size of the inner sub-case can be reduced, so as to facilitate When assembling, insert the inner sub-case into the inside of the core.
  • the thickened portion can support the shape of the core.
  • the outer sub-case When the mold is split, the outer sub-case is placed outside the cavity, and the inner sub-case is inserted into the inside of the core, so that the inner sub-case is used to support the core.
  • the inner sub-sleeve and the thickened portion simultaneously support the inner part of the inner sub-sleeve, and the shape of the fixed core solves the problem that the opening of the box body is too small, and the inner core sleeve of the inner part of the box cannot be assembled or demolded.
  • the inner sub-sleeve includes a plurality of support blocks, the number of the support blocks is the same according to the number of the compartments of the core, and the support blocks are combined with the core after being assembled.
  • the shape corresponds.
  • the structure of the core includes a plurality of compartments having a large size, such as the use of a thickened portion of the core, the thickened portion may be easily deformed, thereby causing deformation of the manufactured product.
  • the respective support blocks are respectively formed into compartments to ensure that the shape of the core does not occur. Raw deformation.
  • a positioning member is disposed on the split mold piece connected to the cavity, and a positioning member 2 is disposed on the split mold piece connected to the core.
  • the positioning component is connected to the positioning component 2 to ensure that no sliding occurs between the closed cavity and the core.
  • a sliding device is further included, the sliding device includes a gear and a rack, and the parting surface of the sub-cover is a vertical surface on a bottom surface and/or a top of the sub-cover A gear is disposed on the face, and the gear is movably coupled to the rack.
  • the gear rack is used to accurately position the closed position of the plaster mold, thereby accurately positioning the closed position of the silicone mold inside the plaster mold, and accurately controlling the closing speed of the mold.
  • the design of the upper and lower molds is prone to external expansion and deformation due to the action of gravity. Therefore, the present invention adopts the left and right molds to avoid the problem that the cavity of the plaster mold is easily deformed.
  • the apparatus further includes an inverting device including an upper frame, a lower frame, a rotating shaft, and a rotating wheel, wherein the upper frame and the lower frame are connected by an elastic member, and the rotating shaft is disposed at the The upper or lower frame is connected to the inner diameter of the rotating wheel.
  • an inverting device including an upper frame, a lower frame, a rotating shaft, and a rotating wheel, wherein the upper frame and the lower frame are connected by an elastic member, and the rotating shaft is disposed at the The upper or lower frame is connected to the inner diameter of the rotating wheel.
  • the mold is clamped by the upper frame and the lower frame, and the mold is turned upside down by the rotation of the rotating wheel, so that the upper and lower positions of the mold can be exchanged, and the upper and lower positions of the mold are prevented from being fixed, so that the inside of the cavity is unidirectionally stressed, and the one-way force is solved. Forced to cause deformation of the cavity.
  • the ingredients are injected into the mold from the bottom of the mold, and the injection port is turned from the bottom to the top by flipping the mold. The ingredients quickly and evenly spread the entire mold cavity, and the bubbles generated during the injection process are discharged through the injection port.
  • the invention also provides a method for manufacturing a polymer acoustic box, which uses the above mold, including
  • Step S101 designing a mold of the sound box body, the mold type comprising an assembly mold of the sound box body.
  • the assembly model includes: a box mold and a back plate mold. One side of the box mold is opened; the back sheet mold can be placed in the opening of the box mold, and the opening of the box mold is sealed by bonding.
  • Step S102 applying organic silica gel on the surface of the mold, and curing the organic silica gel to form an organic silica gel mold, and fixing a jacket on the outer surface of the organic silica gel mold, and then demoulding the mold from the organic silica gel mold.
  • a fixing jacket is arranged on the outside of the silicone mold, and the fixing jacket is used for fixing the shape of the silicone mold to prevent the silicone mold from being deformed during use.
  • two sets of molds of the back plate and the box body are respectively prepared.
  • Step S103 adding a filler, a carbon fiber forming raw material to the resin, the resin being an unsaturated polyester resin or an epoxy resin, the filler comprising calcium carbonate powder, cement and/or natural ore, the resin and the filler
  • the weight ratio of the carbon fiber to the carbon fiber is 40-48:50-58:1, and then the curing agent is added.
  • the weight of the curing agent is 0.5-1% by weight of the raw material, and the curing agent is mixed with the raw material after stirring, and the carbon fiber can also be used. Glass fiber replacement.
  • the addition of carbon fibers and fillers to the epoxy resin or unsaturated polyester resin increases the density and toughness of the article.
  • the cement is made of Portland cement or sulphoaluminate cement. Natural mineral sand refers to quartz sand and its main component is silica.
  • Step S104 the ingredients prepared in step S103 are injected into the organic silica gel mold prepared in step S102, and the fixing jacket is still fixed on the outside of the silicone mold;
  • Step S105 placing the organic silicone mold injected into the batch into the vacuum box together with the fixing jacket.
  • the vacuum degree in the vacuum box is made to be -0.15 MPa.
  • the mold is taken out and demolded to form an assembly prototype.
  • the ingredients are solidified in a vacuum environment to allow the air in the ingredients to escape, preventing air bubbles from forming in the prototype.
  • Step S106 The prototype is washed with a sodium hydroxide solvent having a pH of 14; and the stain on the surface of the prototype is removed by a sodium hydroxide solvent.
  • Step S107 The prototype is opened by using a numerical control device, so that the position of the hole is accurate to 0.1 mm. Electronic components are placed inside the speaker through the hole. At the same time, the bell mouth can be fixed to the sound box through the hole. The accurate position to 0.1mm effectively solves the delicate problem of assembling the resin sound box and electronic components.
  • Step S108 assembling the prototype of the assembly, and bonding the prototypes of each assembly by resin, and curing the glue to form an acoustic cabinet, the resin being an unsaturated polyester resin or an epoxy resin.
  • the assembled pieces are bonded and assembled with the same material of the resin to ensure the same material density of the entire sound box.
  • the material used for bonding is the same as the prototype of the assembled part, the assembled parts can be effectively integrated into one body, the sealing property of the assembled box is improved, and the air leakage due to the structural structure of the box is solved. The problem.
  • step S108 the ABS speaker ring is fixed at the bell mouth position of the acoustic box body, and the resin in the step S103 is placed in a vacuum with a vacuum degree of -0.15 MPa.
  • the assembly is bonded to the assembly by the resin.
  • the method further includes:
  • step S109 polishing and polishing, the surface of the speaker is polished with 100-2000# sandpaper, and then polished, sprayed, and painted.
  • Surface treatment includes spraying, painting, fuel injection, vacuum plating, water plating, UV plating, and the like.
  • the raw material in the step S103 is further added with a decorative object and a coloring material, the decorative material being 10-5000 mesh.
  • the decorative object used is one or more of natural ore powder, wood, cement block, leaf, crystal, pebbles, rope, carbon fiber, luminous powder or natural ore powder, and the decorative object is 10-5000 mesh.
  • the decorative object is not limited to the above materials, and the hard decorative object whose particle size is too large needs to be broken into 10-5000 meshes, such as soft decorative objects such as leaves, ropes, etc., which may or may not be broken. broken.
  • step S103 includes:
  • step S1031 the raw material obtained by stirring the resin and the color material is subjected to degassing of the film; in this step, the air in the raw material can be efficiently discharged.
  • step S1032 the raw material after degassing in the above step is added to a curing agent having a weight of 0.5% of the raw material and stirred uniformly, and then placed in a vacuum box to ensure that the mixed liquid does not re-mix with new air.
  • the gas originally stored in the raw material is discharged in step S1031 to avoid excessive primary gas during the mixing process, and it is necessary to prolong the mixing time in the vacuum environment; and then, in step S1032, degassing is performed during the mixing process to prevent the raw material after the mixing. bubble. ,
  • step S104 the ingredients are injected into the mold under a vacuum of -0.15 MPa, and the flow rate of the ingredients is controlled to be 0.1-0.5 kg/Sec during the injection.
  • the ingredients are injected, the flow rate of the injection is controlled, and the new air is prevented from entering the test. If the speed is greater than 1 kg/Sec, the batch is too late to fill the cavity of the mold and overflows from the gate; if the speed is less than 0.05 kg/Sec, As the casting time is too long, the viscosity of the ingredients will become larger and larger, resulting in the appearance of pores.
  • the silicone mold adopts the structure of the cavity and the core, and changes the original mode of production of the cavity resin product to ensure that the wall thickness of the produced box is uniform;
  • the flipping device can flip the mold up and down, prevent the unidirectional force inside the mold cavity, further prevent the deformation of the cavity, and can quickly and uniformly fill the entire mold cavity, and the injection process The bubbles generated in the air are discharged through the injection port;
  • FIG. 1 is a schematic structural view of a mold according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a mold according to another embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a split mold piece according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a mold apparatus according to an embodiment of the present invention.
  • Figure 5 is a cross-sectional view showing a finished sound box body of the present invention.
  • the mold of the hollow structure polymer acoustic box in one embodiment of the present invention includes a fixed jacket and a silicone mold.
  • the silicone mold includes a cavity 21, a core 22, and a parting sheet 23.
  • the interior of the cavity 21 is hollow, the surface is open, and is in the shape of a container.
  • the intermediate position of the longitudinal section is smaller than the size of the both ends, and the edge of the cavity 21 is formed at the opening.
  • the core 22 has a hollow interior, a surface opening, and a container shape similar in shape to the cavity 21.
  • the opening forms a rim of the core 22, and the size of the core 22 is smaller than the size of the cavity 21, so that the core 22 can be placed on the core 22 The interior of the cavity 21.
  • One-third of the edge of the cavity 21 is connected to one-third of the edge of the core 22, and the cavity 21 and the core 22 are integrally formed of silica gel.
  • the split mold piece 23 is disposed on the other two-thirds of the edge of the cavity 21 and on the other two-thirds of the edge of the core 22.
  • the core 22 is located inside the cavity 21, and the gap between the core 22 and the cavity 21 forms an injection cavity.
  • a casting hole is formed in the cavity 21, and the raw material 14 is poured into the injection chamber through the pouring hole.
  • the core 22 is provided with a thickened portion 24 which is located at the widest point at the bottom of the longitudinal section of the core 22, so that the width of the widest portion of the bottom is reduced to the same size as the middle of the longitudinal section.
  • the fixed jacket 1 includes outer jackets 11, 12 and inner jackets 13.
  • the outer sub-shells 11, 12 are formed in an "L" shape, and the two are joined together to form a frame, and the inner shape of the frame corresponds to the shape of the outer surface of the opposite side of the cavity 21.
  • the shape of the outer surface of the inner sub-casing 14 corresponds to the shape of the inner side surface of the core 22 and the thickened portion 24 combined.
  • the inner wall of the core 22 is reduced in size by the thickened portion 24, so that the longitudinal section of the inner sub-casing 13 is formed to have a shape that is small inside and outside, so that the inner sub-sleeve 13 is inserted into the inside of the core 22 at the time of joining.
  • the outer sub-casings 11, 12 are placed outside the cavity 21, and the inner sub-cassette 13 is inserted into the inside of the core 22, so that the inner sub-casing 13 is used to support the core 22.
  • the inner sub-sleeve 13 and the thickened portion 24 simultaneously support the inner portion of the inner sub-casing 13 and fix the outer shape of the core 22 to solve the problem that the opening of the box body is too small.
  • the problem that the core and the inner sub-case inside the box cannot be assembled or demolded.
  • the core 22 includes three compartments 220.
  • the inner sub-sleeve 13 includes three support blocks 130.
  • the shapes of the three support blocks 130 respectively correspond to the shapes of the three compartments 220, so that the assembled support block 130 can support the interior of the entire core to ensure its shape. constant.
  • a thickening block may be disposed at a corner of some of the special shaped compartments 220 to facilitate demolding between the supporting block 130 and the compartment 220.
  • the sub-die 23 connected to the cavity 21 is provided with a bump 231
  • the sub-die 23 connected to the core 22 is provided with a recess 232.
  • the bump 231 is located in the recess 232 to ensure that no slip occurs between the closed cavity 21 and the core 22.
  • the fixed jacket is a gypsum sleeve, and the parting surface of the gypsum sleeve is a vertical surface, including three sub-gypsum sleeves 1, and only one sub-gypsum sleeve 1 is schematically illustrated in FIG.
  • a gear 3.2 and a gear 3.1 are respectively disposed on the bottom surface and the top surface of the sub-gypsum jacket 1.
  • the rack 4 is fixed below the sub-gypsum cover 1.
  • the sub-gypsum jacket 1 is meshed with the rack 4 via a lower gear 3.2.
  • a sliding device may be respectively disposed on both sides of the bottom surface and the top surface of the sub-gypsum sleeve 1, that is, the sub-gypsum sleeve 1 is slid on the two parallel racks by gears to improve the gypsum sleeve. Stability during opening and closing. Also included is a turning device comprising an upper frame 6.1, a lower frame 6.2, a rotating shaft 7, and a rotating wheel 5.
  • One end of the upper frame 6.1 is located at the top of the sub-gypsum cover 1, the other end is connected to one end of the lower frame 6.2 by a spring 8, and the other end of the lower frame 6.2 is located at the bottom of the sub-gypsum cover 1.
  • the rotating shaft 7 is disposed on the upper frame 6.1, and the rotating shaft 7 is connected to the inner diameter of the rotating wheel 5.
  • the sub-gypsum sleeve 1 slides on the rack to close the two sub-gypsum sleeves 1.
  • the upper frame 6.1 and the lower frame 6.2 are controlled to move by the pneumatic device, so as to move to the top surface and the bottom surface of the closed gypsum sleeve parting surface respectively, and the gypsum sleeve is clamped by the spring.
  • the raw material is injected into the closed mold. Electricity
  • the machine drives the rotating wheel to rotate, and then drives the rotating shaft connected with the rotating wheel to rotate around the center of the rotating wheel, so that the closed mold is turned over, and the inverted mold is still positioned on the rack by the gear, and the upper and lower positions of the mold are reversed to realize the mold.
  • the injection inlet is turned over to allow the material to quickly fill the entire injection chamber of the mold, and the bubbles inside the mold can be discharged upward.
  • the invention also provides a method for manufacturing a composite polymer material acoustic box using the above mold, comprising:
  • Step S101 designing a model of the sound box body, and the model includes an assembly model of the sound box body.
  • the assembly model includes: a box mold and a back plate mold. One side of the box mold is opened; the back sheet mold can be placed in the opening of the box mold, and the opening of the box mold is sealed by bonding.
  • the size of the mold should be reduced by 0.1 mm for the size of the product being produced. After the mold is completed, it is degreased and polished to ensure that the mold does not have problems such as particles, pores or deformation.
  • the size of the bottom plate and the position angle between the bottom plate and the mold are determined, and then the position of the grouting tank and the injection port is determined, so that the pulp can reach each part. Then determine the way the mold is opened and the position of the mold line. Set the oil and soil plate along the position of the mold line.
  • the oil-soil plate is rectangular or square, and each oil-soil plate is fixedly connected by nailing. Then clean the oil soil with soapy water for trimming.
  • Step S102 applying organic silica gel on the surface of the back plate mold and the box mold respectively, and the organic silica gel is solidified to form an organic silica gel mold, and the gypsum jacket is fixed on the outside of the organic silicone mold.
  • a fiber jacket can also be used to secure the silicone mold. After the silicone mold and the fixed gypsum jacket are molded, the mold is demolded.
  • Step S103 mixing unsaturated polyester resin, carbon fiber, filler, color material and decorative object, and stirring to form a raw material, and the weight ratio of the unsaturated polyester resin, the filler and the carbon fiber is 40-48:50-58:1.
  • the proportion of the colorant and the decorative object can be increased into the raw material according to the appearance requirements of the product.
  • the filler includes calcium carbonate powder, cement and/or quartz sand, and the ratio between the fillers is not required, and may be one or more kinds of mixing.
  • a curing agent is added, and the weight of the curing agent is 0.5% by weight of the raw material; wherein the decorative object may be natural ore powder, cement block, wood, leaves, crystal, pebbles, rope, carbon fiber, luminous powder or natural ore.
  • the decorative object can form an organic texture pattern on the resin.
  • it For hard decorative objects whose particle size is too large, it needs to be broken to 10-5000 mesh. If it is a soft material, such as rope or leaves, it can be pulverized.
  • the acoustic box produced can reduce the resonance and echo, make the sound quality full and clean, and the bass is dive. It needs to be in unsaturated polyester resin and epoxy. Carbon fiber and glass fiber are added to the resin to increase the toughness of the box and is not easy to be broken.
  • the density of the box is 2.7-2.8 g/cm 3 or more, which is more than three times that of wood products and plastic products.
  • Step S104 The ingredients prepared in step S103 are injected into the silicone mold made in step S102. When injecting, it is ensured that the fixed jacket is still fixed on the outside of the silicone mold to avoid deformation during the injection process.
  • Step S105 placing the organic silicone mold injected into the batch into the vacuum box together with the fixing jacket, so that the vacuum degree in the vacuum box is -0.15 MPa. After the batch is solidified and formed, the mold is taken out and demolded to form an assembly prototype. . The air in the furnish is discharged by curing in a vacuum environment.
  • Step S106 The prototype is washed with a sodium hydroxide solvent having a pH of 14; and the stain on the surface of the prototype is removed by a sodium hydroxide solvent.
  • Step S107 The prototype is opened by using a numerical control device, so that the position of the hole is accurate to 0.1 mm.
  • the electronic components of the sound can be placed inside the speaker through the hole, and the electronic component is connected to the bell mouth, and the outer circumference of the bell mouth can be bonded and fixed to the inner circumference of the hole.
  • Step S108 placing the unsaturated polyester resin or epoxy resin in a vacuum chamber with a degree of vacuum of -0.15 MPa for 5 minutes, using the vacuumed unsaturated polyester resin or the position of the bell mouth of the acoustic box body.
  • the epoxy resin is fixed to the ABS resin horn ring, and the other prototype pieces are also bonded by vacuum unsaturated polyester resin or epoxy resin.
  • the ABS resin horn 02 is fixed by an unsaturated polyester resin or epoxy resin at the opening of the assembly blank 01.
  • step S109 polishing and polishing, the surface of the speaker is polished with a fine sandpaper of 100-2000#, and then subjected to surface treatment such as polishing, spraying, painting, fuel injection, vacuum plating, water plating, UV plating, and the like.
  • step S103 includes:
  • step S1031 the raw material after the resin and the color material are uniformly stirred is subjected to degassing of the film; in this step, the air originally existing in the raw material can be efficiently discharged.
  • the gas originally present in the raw material is discharged through step S1031 to avoid excessive primary gas during the mixing process, resulting in the need to prolong the mixing time in the vacuum environment.
  • step S1032 the raw material after the degassing treatment in the above step is added to a 0.5% curing agent and stirred to form an ingredient.
  • step S104 the ingredient is injected into the mold and then discharged under a vacuum of -0.15 MPa.
  • Gas the flow rate of the ingredients is controlled to be 1-0.5 kg/min during the injection of the ingredients into the mold.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un moule pour un corps de boîte à structure creuse d'un dispositif audio polymère et un procédé de fabrication d'un corps de boîte de dispositif audio utilisant le moule. Le moule comprend une enveloppe externe de fixation (1) et un moule de silicone. L'enveloppe externe de fixation (1) est située de manière amovible à l'extérieur du moule de silicone. Le moule de silicone comprend une cavité (21) de moule, un noyau (22) de moule et une plaque de séparation (23) de moule, les bords de la cavité (21) de moule et les bords du noyau (22) de moule étant reliés et la plaque de séparation (23) de moule étant située le long d'autres bords de la cavité (21) de moule et du noyau (22) de moule et, lorsque la plaque de séparation (23) de moule de la cavité (21) de moule et du noyau (22) de moule est fermée, le noyau (22) de moule se trouve à l'intérieur de la cavité (21) de moule, le jeu entre le noyau (22) de moule et la cavité (21) de moule forme une cavité d'injection et un trou verseur est situé sur la cavité d'injection. Le procédé comprend des étapes telles que la conception d'espèces de moule, la réalisation du moule, le mélange d'ingrédients, l'injection et la mise sous vide. Le moule fixe le noyau de moule à l'intérieur de la cavité de moule et la cavité interne du corps de boîte est formée au moyen du moule pour assurer que la paroi du corps de boîte présente une épaisseur constante et le procédé ajoute des matières de charge et des fibres de carbone à la résine, ce qui améliore la densité et la dureté du corps de boîte.
PCT/CN2016/086697 2015-07-01 2016-06-22 Moule pour corps de boîte à structure creuse de dispositif audio polymère et son procédé de fabrication de corps de boîte de dispositif audio WO2017000818A1 (fr)

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CN201510377057.8 2015-07-01
CN201510377057.8A CN104943187B (zh) 2015-07-01 2015-07-01 复合型高分子材料音响箱体的制作方法及模具设备

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113997473A (zh) * 2021-10-28 2022-02-01 泉州市国科自动化科技有限公司 一种环保树脂工艺品生产工艺及其生产流水线

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104943187B (zh) * 2015-07-01 2017-12-05 陈建新 复合型高分子材料音响箱体的制作方法及模具设备

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