CN113676821B - Composite cone and production process thereof - Google Patents
Composite cone and production process thereof Download PDFInfo
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- CN113676821B CN113676821B CN202110821591.9A CN202110821591A CN113676821B CN 113676821 B CN113676821 B CN 113676821B CN 202110821591 A CN202110821591 A CN 202110821591A CN 113676821 B CN113676821 B CN 113676821B
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- supporting layer
- cone
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 title claims description 20
- 230000008093 supporting effect Effects 0.000 claims abstract description 84
- 239000002994 raw material Substances 0.000 claims description 23
- 239000003292 glue Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000007731 hot pressing Methods 0.000 claims description 9
- 244000146553 Ceiba pentandra Species 0.000 claims description 8
- 235000003301 Ceiba pentandra Nutrition 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 210000002268 wool Anatomy 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 3
- 238000004537 pulping Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 2
- 235000009120 camo Nutrition 0.000 claims description 2
- 235000005607 chanvre indien Nutrition 0.000 claims description 2
- 239000011487 hemp Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003313 weakening effect Effects 0.000 abstract description 2
- 238000013016 damping Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 181
- 239000012790 adhesive layer Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
The application discloses compound cone and production technology thereof relates to the field of cone production technology, and it includes the basin body, the basin body includes paper layer and supporting layer, paper layer and supporting layer are glued and connect, the installation hoop is encircleed to the week side of the basin body. The cone damping device has the effects of reducing occurrence of softening after the cone is damped and being beneficial to weakening the degree of decline of sound production quality of the cone.
Description
Technical Field
The application relates to the field of cone production technology, in particular to a composite cone and a production process thereof.
Background
The cone is one of important components in the loudspeaker and mainly comprises a cone, a bulletproof cloth cone, a wool cone, a ceramic cone and a PP cone, wherein the cone has low cost, but has good sound performance and high sensitivity, so the cone is most widely applied.
At present, in the production of paper cone, firstly, paper is soaked, the paper is smashed through smashing equipment, then paper pulp is made through a die, and finally, the stable paper cone is formed through hot pressing. In order to reduce the situation that the cone is damaged by moisture, glue is often coated on the surface of the cone so as to isolate the cone from air.
With respect to the above related art, the inventor considers that there is a case where the cone is easily wetted in a humid environment, resulting in softening of the cone and serious degradation of sound quality, and there is a need for improvement.
Disclosure of Invention
In order to improve the condition that the cone is easy to be wetted and softened and the quality is seriously reduced in the related art, the application provides a composite cone and a production process thereof.
In a first aspect, the present application provides a composite cone and a production process thereof, which adopts the following technical scheme:
the utility model provides a compound cone, includes the basin body, the basin body includes paper layer and supporting layer, paper layer and supporting layer glue glues to be connected, the installation hoop is still installed to the week side of the basin body.
Through adopting above-mentioned technical scheme, support the paper layer by the supporting layer, help reducing the cone and wet the condition emergence that softens after, and help weakening the decline degree of cone sounding quality.
Preferably, the supporting layer is a plastic layer.
Through adopting above-mentioned technical scheme, the plastic layer possesses good supporting effect to can separate air and paper layer and be close to supporting layer one side, help guaranteeing the supporting effect to paper layer, delay the condition emergence that the paper layer wets simultaneously.
Preferably, the external diameter of the supporting layer is larger than that of the paper layer, a connecting ring groove is formed in the outer side of the paper layer, a connecting ring edge is formed in the inner side of the mounting ring, and the connecting ring edge is embedded into the connecting ring groove and is fixedly bonded with the supporting layer.
By adopting the technical scheme, the connecting ring edge is embedded into the annular groove and connected with the supporting layer, so that the stability of connection of the mounting ring and the basin body is guaranteed.
Preferably, a bump is formed on one side of the paper layer, which is close to the supporting layer, and the bump is embedded into the supporting layer.
By adopting the technical scheme, the tightness of connection between the paper layer and the supporting layer is further improved.
In a second aspect, the present application provides a composite cone and a production process thereof, including the steps of:
s1, preparing, namely respectively placing a plurality of raw material materials into different pools for soaking;
s2, pulping, namely respectively crushing the soaked materials to form slurry;
s3, proportioning operation, namely fishing out materials in various slurries by controlling water, and preparing and combining the materials in proportion by using a weighing mode to form a paper layer raw material;
s4, paper making operation, namely, adding the paper layer raw material into water solution, and stirring to form raw material slurry; immersing the paper into the raw material slurry through a cone-shaped paper making die to make paper, thereby forming an initial paper layer;
s5, hot pressing operation, namely applying pressure and temperature to the initial paper layer, extruding out moisture in the initial paper layer, and solidifying the moisture, so that the paper layer is solidified;
s6, drying the paper layer, reducing the moisture of the paper layer and keeping the paper layer at a higher temperature;
s7, carrying out combined operation,
s7.1, heating the supporting layer, placing the paper layer on the supporting layer, and applying pressure to the paper layer to bond the supporting layer and the paper layer;
s7.2, heating the connecting annular edges of the supporting layer and the mounting annular ring, and applying pressure to the connecting annular edges of the supporting layer and the mounting annular ring to enable the connecting annular edges of the supporting layer and the mounting annular ring to be bonded;
and S8, finally forming, and cooling and drying the basin body to obtain the finished loudspeaker basin.
Through adopting above-mentioned technical scheme, on the one hand, realize the normal production operation to compound cone, guarantee the firm connection between supporting layer and the paper layer, guarantee to install firm connection between ring and the supporting layer. Meanwhile, the paper layer is supported by the supporting layer based on the composite cone produced by the process, so that the occurrence of softening of the cone after being wetted is reduced, and the degree of degradation of sound production quality of the cone is weakened;
on the other hand, the paper layer has a certain temperature, and is more easily adhered to the supporting layer in the process of adhering to the supporting layer, and the connection tightness between the supporting layer and the paper layer is improved.
Preferably, in S5, the paper layer is hot pressed by a hot press, where the hot press includes an upper die and a lower die, a groove adapted to the shape of the paper layer is formed on the lower die, and a protrusion adapted to the shape of the paper layer is formed on the upper die.
Through adopting above-mentioned technical scheme, by the recess of lower mould and the protruding cooperation of last mould, realize the solidification operation to the paper layer, can guarantee the homogeneity that the paper layer is pressed and is heated simultaneously to help guaranteeing the effect of whole sound production after the shaping of paper layer.
Preferably, concave points for forming convex points are arranged on the side walls of the grooves of the lower die.
By adopting the technical scheme, based on the concave points on the side walls of the grooves, in the process of extruding the paper layer by the upper die and the lower die, the part of the paper layer corresponding to the concave points is protruded into the concave points and forms convex points, so that the forming operation of the convex points on the paper layer is realized, and the connection tightness of the paper layer and the supporting layer is ensured;
simultaneously, based on the heating to the supporting layer for the supporting layer softens, the bump on the paper layer can and comparatively easy embedding to the supporting layer in, and helps guaranteeing the compactness of being connected between paper layer and the supporting layer.
Preferably, in S5, the temperature of the upper die and the lower die of the hot press is controlled to be 165-185 ℃, the pressure between the upper die and the lower die is controlled to be 2.5-3.5kg, and the hot pressing time of the upper die and the lower die on the paper layer is controlled to be 2-4 minutes.
Through adopting above-mentioned technical scheme, under this condition, can guarantee the thickness of paper layer to guarantee the density and the solidification effect of two of paper layer self, make paper layer possess good emergence performance.
Preferably, in S1, the plurality of materials include fibrilia and kapok;
in S3, the proportion of hemp pulp to kapok is 2:1, a step of;
in S4, wool fibers are mixed in the raw material slurry at the same time.
By adopting the technical scheme, on one hand, the ratio is 2:1, fibrilia and kapok form the main materials of the paper layer, so that good sounding quality can be ensured under the condition of lower cost, and the stability of solidification of the paper layer after hot pressing is ensured;
on the other hand, the wool is mixed into the paper layer in a limited manner, so that the connection tightness between the parts of the paper layer can be enhanced, and the solidification stability of the paper layer after hot pressing is further improved.
Preferably, in S7.1, the adhesive glue is coated on the side of the paper layer close to the supporting layer, and then the supporting layer and the paper layer are adhered;
in S7.2, glue is coated on one side surface of the joint ring, which is attached with the supporting layer, and then the joint operation of the supporting layer and the mounting ring is carried out.
Through adopting above-mentioned technical scheme, by glue bonding supporting layer and paper layer, supporting layer and installation ring, can further promote the compactness that supporting layer and paper layer are connected, the compactness that supporting layer and installation ring are connected.
In summary, the present application includes at least one of the following beneficial technical effects:
the paper layer is supported by the supporting layer, so that the occurrence of softening of the cone after being wetted is reduced, and the reduction degree of the sounding quality of the cone is reduced;
the bump on the paper layer is embedded into the supporting layer, glue is coated on the paper layer, and the supporting layer and the paper layer are adhered through the glue, so that the connection tightness between the supporting layer and the paper layer is improved.
Drawings
FIG. 1 is an isometric view of a composite cone overall structure embodying the present embodiment;
FIG. 2 is a schematic diagram mainly showing a production process structure of a composite cone in the present embodiment;
FIG. 3 is a schematic diagram illustrating an axial measurement of a hot press structure according to the present embodiment;
fig. 4 is a schematic diagram mainly showing the upper die structure of the hot press according to this embodiment.
Reference numerals: 1. a basin body; 11. a paper layer; 12. a support layer; 13. a connecting ring groove; 2. installing a ring; 21. connecting the annular edges; 3. a waterproof adhesive layer; 4. a frame; 41. an oil cylinder; 5. a lower die; 51. a groove; 6. an upper die; 61. a protrusion; 7. and a heating rod.
Detailed Description
The present application is described in further detail below.
The embodiment of the application discloses a composite cone and a production process thereof.
Examples:
referring to fig. 1, the composite cone comprises a cone body 1, and the cone body 1 is integrally provided with a loudspeaker device. The basin body 1 comprises a paper layer 11 and a supporting layer 12, wherein the supporting layer 12 is sleeved on the outer side of the paper layer 11, and the paper layer 11 is fixedly connected with the supporting layer 12. The circumferential side of the basin body 1 is provided with a mounting ring 2. In practical application, the mounting ring 2 is used for mounting the basin body 1 on the loudspeaker support, and the supporting layer 12 supports the paper layer 11, weakens the degree of decline of sounding quality of the basin after being wetted.
Specifically, the supporting layer 12 is a plastic layer, and is preferably made of PP. The paper layer 11 is close to the lateral shaping of supporting layer 12 and has the bump, and the bump is provided with a plurality of at paper layer 11 around paper layer 11 axis even interval, and arbitrary bump all imbeds in supporting layer 12, and paper layer 11 is close to the one side coating of supporting layer 12 and has glue, and paper layer 11 glues on supporting layer 12 through glue.
The outer diameter of the supporting layer 12 is larger than that of the paper layer 11, and a connecting ring groove 13 is formed on the outer side of the supporting layer 12 positioned on the paper layer 11. The inner ring of the mounting ring 2 is coaxially formed with a connecting ring edge 21, the connecting ring edge 21 is embedded into the connecting ring groove 13, and the inner edge of the connecting ring edge 21 abuts against the outer edge of the paper layer 11. One side of the connecting ring edge 21, which abuts against the supporting layer 12, is coated with glue, and the connecting ring edge 21 is adhered to the supporting layer 12 through the glue.
Meanwhile, a side surface of the paper layer 11, which is away from the supporting layer 12, is coated with a waterproof adhesive layer 3, and the waterproof adhesive layer 3 covers the joint of the connecting annular edge 21 and the paper layer 11.
The implementation principle of the composite cone and the production process thereof in the embodiment of the application is as follows: in practical application, the waterproof structure of the paper layer 11 is formed by the waterproof adhesive layer 3 and the supporting layer 12 together, so that the occurrence of the conditions of moisture regaining and softening of the paper layer 11 is reduced; when the paper layer 11 is wetted and softened, the paper layer 11 is supported by the supporting layer 12, so that the reduction degree of the sounding quality of the cone is reduced, and the cone is ensured to normally sound.
The embodiment of the application also discloses a composite cone production process, in this embodiment, the supporting layer 12 and the mounting ring 2 are generally formed by punching or injection molding sheets, the process is simpler, and redundant description is not needed in this embodiment.
Referring to fig. 2, the composite cone production process comprises the following steps:
s1, preparing, namely respectively placing a plurality of raw material materials into different pools for soaking. In this embodiment, the multiple materials include fibrilia and kapok, and the ratio of the two is 2:1. wherein the fibrilia and kapok fiber are sheet materials, and are placed in water for soaking for 1-2 hours, preferably 1 hour;
s2, pulping, namely fishing out the soaked raw materials from a water tank, manually tearing the soaked raw materials into small pieces by workers, and respectively crushing the soaked raw materials by a stirrer to form slurry.
S3, proportioning operation, namely fishing out materials in various slurries after water control, and fishing out the materials through a fishing net; then the cylinder drives the pressing plate to carry out water pressing operation on the stacked materials, further controls moisture and stores various materials separately. When the raw materials are proportioned, the raw materials are proportioned and combined according to proportion by adopting a weighing mode, and the raw materials for forming the paper layer 11 are proportioned by weight of fibrilia and kapok according to the weight ratio of 2:1, proportioning the components in proportion;
s4, carrying out papermaking operation, namely putting the proportioned raw materials of the paper layer 11 into water solution, and stirring the water solution by a stirrer to form raw material slurry; in the process, wool fibers are mixed in the raw material slurry at the same time, and the fibrilia and the wool fibers 10 are mixed according to the following steps: 1, wool fibers are prepared according to the proportion and are uniformly stirred.
Immersing the paper into the raw material slurry through a cone-shaped paper making die to make paper, thereby forming an initial paper layer 11; in the process, the paper making mould adopts a cone-shaped gauze which is a hard gauze, and simultaneously can adopt cone-shaped protrusions to support the gauze so as to ensure the stability of the gauze.
S5, hot pressing operation, namely applying pressure and temperature to the initial paper layer 11, extruding out moisture in the initial paper layer 11, and solidifying the moisture, so that the paper layer 11 is solidified;
referring to fig. 3 and 4, in this process, the paper layer 11 is hot-pressed by using a hot press, wherein the hot press includes a frame 4, and an upper die 6 and a lower die 5 disposed on the frame 4, the lower die 5 is fixed on the frame 4, an oil cylinder 41 is further installed on the upper side of the frame 4, a piston rod of the oil cylinder 41 is vertically disposed downward, and the upper die 6 is fixed on the lower side of the piston rod of the oil cylinder 41. The lower die 5 is provided with a groove 51 which is adapted to the shape of the paper layer 11, and the upper die 6 is formed with a protrusion 61 which is adapted to the shape of the paper layer 11.
Meanwhile, the upper die 6 and the lower die 5 are respectively provided with a heating rod 7 in a penetrating way.
In actual practice, the paper making mould is turned over, so that the paper layer 11 on the paper making mould faces downwards, the paper making mould and the paper layer 11 are quickly pressed into the groove 51 vertically downwards, the paper making mould is suddenly stopped, and the paper layer 11 falls into the groove 51 under the downward inertia; then, the upper die 6 is pushed down by the cylinder 41, and pressure is applied to the paper layer 11. At the same time, heat is generated by the heating rod 7, and is conducted to the paper layer 11 through the upper die 6 and the lower die 5. For the control of the hot press, the temperatures of the upper die 6 and the lower die 5 of the hot press are controlled to 165-185 degrees, preferably 170 degrees, the pressure between the upper die 6 and the lower die 5 is controlled to 2.5-3.5kg, preferably 3kg, and the hot press time of the upper die 6 and the lower die 5 to the paper layer 11 is controlled to 2-4 minutes, preferably 3 minutes.
S6, drying, namely placing the paper layer 11 on a placing table or a conveying belt after the paper layer 11 is hot pressed and solidified, and drying the paper layer 11 by adopting a fan to reduce the moisture of the paper layer 11. In the process, a heater is adopted to heat the air flow sent by the fan, so that the drying speed is improved, the paper layer 11 is kept at a higher temperature, and the next step is convenient to carry out;
s7, carrying out combined operation,
s7.1, coating adhesive glue on one side surface of the paper layer 11, which is close to the supporting layer 12, heating the surface of the supporting layer 12, placing the paper layer 11 on the supporting layer 12, and applying pressure to the paper layer 11 to adhere the supporting layer 12 and the paper layer 11; in this process, a hot press may be selected, the supporting layer 12 is placed in the groove 51, the lower mold 5 heats the supporting layer 12, and then the paper layer 11 is placed on the upper side of the supporting layer 12, and the upper mold 6 presses down to stably adhere the supporting layer 12 and the paper layer 11.
S7.2, coating glue on one side surface of the joint ring edge 21, which is attached to the supporting layer 12, heating the supporting layer 12 and the joint ring edge 21 of the mounting ring 2, and applying pressure to the supporting layer 12 and the joint ring edge 21 of the mounting ring 2, so that the supporting layer 12 and the joint ring edge 21 of the mounting ring 2 are adhered; in this process, a hot press may be selected to place the basin 1 in the recess 51, and the lower mold 5 heats the support layer 12 and the connection rim 21 of the mounting collar 2, and the upper mold 6 is pressed down to stably adhere the support layer 12 and the connection rim 21 of the mounting collar 2.
And S7.3, coating waterproof glue on one side of the paper layer 11, which is away from the supporting layer 12, and forming a waterproof glue layer 3, wherein the waterproof glue layer 3 covers the joint of the connecting annular edge 21 and the paper layer 11.
And S8, finally forming, and cooling and drying the basin body 1 to obtain the finished loudspeaker basin.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (6)
1. A composite cone production process is characterized in that: the method comprises the following steps:
s1, preparing, namely respectively placing a plurality of raw material materials into different pools for soaking;
s2, pulping, namely respectively crushing the soaked materials to form slurry;
s3, proportioning operation, namely fishing out materials in various slurries by controlling water, and preparing and combining the materials in proportion by using a weighing mode to form raw materials of the paper layer (11);
s4, paper making operation, namely, putting the raw material of the paper layer (11) into water solution, and stirring to form raw material slurry; immersing the paper into the raw material slurry through a cone-shaped paper making die to make paper, thereby forming an initial paper layer (11);
s5, hot pressing operation is carried out, wherein pressure and temperature are applied to the initial paper layer (11), moisture in the initial paper layer (11) is pressed out, and the moisture is solidified, so that the paper layer (11) is solidified;
s6, drying the paper layer (11), reducing the moisture of the paper layer (11), and keeping the paper layer (11) at a higher temperature;
s7, carrying out combined operation,
s7.1, heating the supporting layer (12), placing the paper layer (11) on the supporting layer (12), and applying pressure to the paper layer (11) so that the supporting layer (12) and the paper layer (11) are bonded;
s7.2, heating the connecting annular edge (21) of the supporting layer (12) and the mounting annular ring (2), and applying pressure to the connecting annular edge (21) of the supporting layer (12) and the mounting annular ring (2) so that the connecting annular edge (21) of the supporting layer (12) and the mounting annular ring (2) are bonded;
and S8, finally forming, and cooling and drying the basin body (1) to obtain the finished loudspeaker basin.
2. The composite cone production process according to claim 1, wherein: in S5, a hot press is adopted to carry out hot pressing on the paper layer (11), wherein the hot press comprises an upper die (6) and a lower die (5), a groove (51) which is matched with the shape of the paper layer (11) is formed in the lower die (5), and a protrusion (61) which is matched with the shape of the paper layer (11) is formed in the upper die (6).
3. The composite cone production process according to claim 2, wherein: concave points for forming convex points are arranged on the side walls of the grooves (51) of the lower die (5).
4. The composite cone production process according to claim 2, wherein: in S5, the temperature of an upper die (6) and a lower die (5) of the hot press is controlled at 165-185 ℃, the pressure between the upper die (6) and the lower die (5) is controlled at 2.5-3.5kg, and the hot pressing time of the upper die (6) and the lower die (5) on the paper layer (11) is 2-4 minutes.
5. The composite cone production process according to claim 1, wherein: in S1, various materials including fibrilia and kapok;
in S3, the proportion of hemp pulp to kapok is 2:1, a step of;
in S4, wool fibers are mixed in the raw material slurry at the same time.
6. The composite cone production process according to claim 1, wherein: in S7.1, firstly, coating adhesive glue on one side surface of the paper layer (11) close to the supporting layer (12), and then bonding the supporting layer (12) and the paper layer (11);
in S7.2, glue is coated on one side surface of the joint ring edge (21) which is attached with the supporting layer (12), and then the joint operation of the supporting layer (12) and the mounting ring (2) is carried out.
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| CN202110821591.9A CN113676821B (en) | 2021-07-20 | 2021-07-20 | Composite cone and production process thereof |
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| CN202110821591.9A CN113676821B (en) | 2021-07-20 | 2021-07-20 | Composite cone and production process thereof |
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| US20160249136A1 (en) * | 2015-02-21 | 2016-08-25 | Dexin Corporation | Loudspeaker and loudspeaker driver |
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| CN203233535U (en) * | 2013-05-27 | 2013-10-09 | 宁波市向阳电声元件实业有限公司 | Double-layer sound basin |
| CN108914675A (en) * | 2018-07-17 | 2018-11-30 | 安徽古耐家居有限公司 | A kind of high-quality printing dedicated paper manufacturing method of weather-proof waterproof |
| CN208707936U (en) * | 2018-08-16 | 2019-04-05 | 广州市德胜扬声器材科技有限公司 | A kind of novel sectional copy paper diffuser |
| CN110528309A (en) * | 2019-08-22 | 2019-12-03 | 浙江荣晟环保纸业股份有限公司 | The paper technology of novel retention aid and filtering aid |
| CN210491186U (en) * | 2019-09-20 | 2020-05-08 | 深圳海翼智新科技有限公司 | Loudspeaker cone, loudspeaker and loudspeaker box |
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