CN109262479A - A kind of three-in-one composite structure - Google Patents

A kind of three-in-one composite structure Download PDF

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Publication number
CN109262479A
CN109262479A CN201811130802.9A CN201811130802A CN109262479A CN 109262479 A CN109262479 A CN 109262479A CN 201811130802 A CN201811130802 A CN 201811130802A CN 109262479 A CN109262479 A CN 109262479A
Authority
CN
China
Prior art keywords
composite
composite structure
drying cylinder
material layer
drying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811130802.9A
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Chinese (zh)
Inventor
刘宜彪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DONGGUAN GOLDEN SUN ABRASIVES Co Ltd
Original Assignee
DONGGUAN GOLDEN SUN ABRASIVES Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DONGGUAN GOLDEN SUN ABRASIVES Co Ltd filed Critical DONGGUAN GOLDEN SUN ABRASIVES Co Ltd
Priority to CN201811130802.9A priority Critical patent/CN109262479A/en
Publication of CN109262479A publication Critical patent/CN109262479A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/001Manufacture of flexible abrasive materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D11/00Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
    • B24D11/02Backings, e.g. foils, webs, mesh fabrics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00Layered products comprising a layer of paper or cardboard
    • B32B29/002Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/007Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a foam layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00Ancillary operations in connection with laminating processes
    • B32B38/16Drying; Softening; Cleaning
    • B32B38/164Drying

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to compounding machine technical fields, refer in particular to a kind of three-in-one composite structure comprising the first unwinding device, the second unwinding device, the first sizer, the first drying cylinder set composite, third unwinding device, the second sizer, the second drying cylinder set composite, drying unit and wrap-up.Three kinds of materials continuously can be disposably combined into three-in-one composite material by the application, and simple production process improves production efficiency, and composite effect is good.

Description

A kind of three-in-one composite structure
Technical field
The present invention relates to compounding machine technical fields, refer in particular to a kind of three-in-one composite structure.
Background technique
The tool of traditional polishing grinding has very much, wherein with laminated sand paper be it is most common, laminated sand paper mainly by substrate, Viscose glue and abrasive material composition, wherein substrate mostly uses greatly paper material or single layer cloth or single thin film, the pliability of paper material Difference, and paper material be easy it is damaged, meet that water is easily rotten, when polishing grinding, is easy to scratch the equipment of polishing, and use single layer cloth or Film is prone to wear as substrate, and when the equipment sanding and polishing more coarse for surface, the loss of sand paper is big, very not It is durable, it is therefore desirable to which that multilayer material can be compounded to form durable, chance water and be not easy rotten Sponge sand paper composite material by one kind Mechanism.
At present only by the equipment of two kinds of Material claddings, when needing three kinds of Material claddings, then need two kinds of materials first It is wound after first time composite molding, then by second of composite molding of material of the third material and first time composite molding, finally Three kinds of Material cladding moldings cannot continuously disposably form three kinds of Material claddings, such complex production process, production efficiency It is low.
Summary of the invention
It, can be by multiple material continuously one the technical problem to be solved in the present invention is to provide a kind of three-in-one composite structure Secondary property composite molding.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme:
A kind of three-in-one composite structure comprising the first unwinding device for unreeling first material layer is used for The second unwinding device that two material layers unreel, for second material layer gluing the first sizer, for by the first material Layer and second material layer roll-in are compounded to form the first drying cylinder set composite of the first composite material, for unreeling third material layer Third unwinding device, for the first composite material gluing the second sizer, for by the first composite material and third Material layer roll-in is compounded to form the second drying cylinder set composite of the second composite material, the drying for drying the second composite material Device and for wind drying unit drying after the second composite material wrap-up.
Further, the first drying cylinder set composite includes support frame, the drying cylinder device for being set to support frame and setting Silica gel roller mechanism in drying cylinder device side.
Further, the drying unit is equipped with cabinet and the waste gas exhausting device for the intracorporal exhaust gas of case to be discharged.
Further, the three-in-one composite structure further includes the traction device for drawing to the second composite material.
Further, the three-in-one composite structure further includes the metering dress for calculating the length of the second composite material It sets.
Further, the three-in-one composite structure further includes multiple extractor fans.
Further, the first drying cylinder set composite and the second drying cylinder set composite are equipped with multiple elastic adjusting dresses It sets, the slack adjuster includes the fixed frame for being set to support frame, the feeding roller for being slideably positioned in fixed frame and is used for The handle of feeding roller is adjusted, handle is connect with feeding roller.
Further, the three-in-one composite structure further includes storage rack and infeed set-up.
Further, the three-in-one composite structure further includes multiple help rolls.
Further, the three-in-one composite structure further includes multiple channels.
Beneficial effects of the present invention: the application includes the first unwinding device, the second unwinding device, the first sizer, the One drying cylinder set composite, third unwinding device, the second sizer, the second drying cylinder set composite, drying unit and wrap-up, It is compound to be sent to the first drying cylinder with second material layer for first material layer after the gluing of first sizer completion second material layer Device, first material layer and second material layer are compressed and are compounded to form the first composite material by the first drying cylinder set composite, on second Third material layer and the first composite material are sent to the compound dress of the second drying cylinder after the gluing of adhesive dispenser the first composite material of completion It sets, third material layer and the first composite material compression are compounded to form the second composite material, the application by the second drying cylinder set composite Three kinds of materials continuously can be disposably combined into three-in-one composite material, simple production process improves production efficiency, compound Effect is good.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the partial enlargement structural representation of part A in Fig. 1.
Description of symbols:
01. first material layer;02. second material layer;03. first composite material;04. third material layer;05. second is compound Material;1-1. support frame;1-2. support frame;2. the first unwinding device;3. the second unwinding device;4. the first sizer;5. the One drying cylinder set composite;6. third unwinding device;7. the second sizer;8. the second drying cylinder set composite;9. drying unit; 10. wrap-up;11. traction device;12. meter-measuring device;13. extractor fan;14. slack adjuster;15. storage rack;16. Infeed set-up;17. help roll;18. cabinet;19. waste gas exhausting device;20. fixed frame;21. feeding roller;22. handle;23. channel; 24-1. silica gel roller mechanism;24-2. silica gel roller mechanism;25-1. drying cylinder device;25-2. drying cylinder device;26. guide roller.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further below with reference to embodiment and attached drawing Bright, the content that embodiment refers to not is limitation of the invention.
As shown in Figure 1 to Figure 2, a kind of three-in-one composite structure provided by the invention comprising be used for first material layer 01 unreel the first unwinding device 2, the second unwinding device 3 for unreeling second material layer 02, be used for second material layer First sizer 4 of 02 gluing, for first material layer 01 and 02 roll-in of second material layer to be compounded to form the first composite wood Material 03 the first drying cylinder set composite 5, the third unwinding device 6 for unreeling third material layer 04, be used for it is compound to first Second sizer 7 of 03 gluing of material, for the first composite material 03 and 04 roll-in of third material layer to be compounded to form second It second drying cylinder set composite 8 of composite material 05, the drying unit 9 for drying the second composite material 05 and is used to wind The wrap-up 10 of the second composite material 05 after the drying of drying unit 9.
In practice, first sizer 4 is located at the rear end of the second unwinding device 3, the first drying cylinder set composite 5 Positioned at the rear end of the first sizer 4, the first unwinding device 2 is located at the front end of the first drying cylinder set composite 5, the second sizer 7 are located at the rear end of the first drying cylinder set composite 5, and the second drying cylinder set composite 8 is located at the rear end of the second sizer 7, and third is put Winding apparatus 6 is located at the front end of the second drying cylinder set composite 8, and drying unit 9 is located at the rear end of the second drying cylinder set composite 8, winding Device 10 is located at the rear end of drying unit 9.
At present only by the equipment of two kinds of Material claddings, when needing three kinds of Material claddings, then need two kinds of materials first It is wound after first time composite molding, then by second of composite molding of material of the third material and first time composite molding, finally Three kinds of Material cladding moldings cannot continuously disposably form three kinds of Material claddings, such complex production process, production efficiency It is low;To solve the above-mentioned problems, the first unwinding device 2 of the application unreels first material layer 01, and the second unwinding device 3 is by Two material layers 02 unreel, and the first sizer 4, close to a face gluing of first material layer 01, completes second to second material layer 02 First material layer 01 and second material layer 02 are sent to the first drying cylinder set composite 5, the first drying cylinder after the gluing of material layer 02 First material layer 01 and the compression of second material layer 02 are compounded to form the first composite material 03, the first composite material by set composite 5 03 passes through the hot-rolling pressure of the first drying cylinder set composite 5, and first material layer 01 and second material layer 02 are securely combined with each other, this When first material layer 01 be located at the top of second material layer 02;First composite material 03 is by first material layer 01 and the second material 02 Layer is combined;Third unwinding device 6 unreels third material layer 04, and the first composite material 03 is sent to the second sizer 7, The application is additionally provided with multiple guide rollers 26, and the passage in transit that the first composite material 03 is sent to the second drying cylinder set composite 8 is multiple Guide roller 26, so that the first composite material 03 is located at second material layer 02 with the compound preceding first material layer 01 of third material layer 04 Lower section, the second sizer 7 carry out gluing to the another side of second material layer 02, complete after the gluing of the first composite material 03 the Three material layers 04 and the first composite material 03 are sent to the second drying cylinder set composite 8, and the second drying cylinder set composite 8 is by third material The bed of material 04 and the first composite material 03 compression are compounded to form the second composite material 05, and the second composite material 05 is multiple by the second drying cylinder Attach together set 8 hot-rolling pressure, third material layer 04 and the first composite material 03 be securely combined with each other, at this time the second composite material 05 second material layer 02 is between first material layer 01 and third material layer 04, and then the second composite material 05 is sent to baking Equipment for drying 9 carries out hot drying, and the second composite material 05 after drying is wound by wrap-up 10, finally obtains by three kinds of material layers Three kinds of materials continuously can be disposably compounded to form three-in-one composite wood by the second composite material 05 being combined, the application Material, simple production process improve production efficiency, and composite effect is good;Preferably, first material layer 01 and 04 layer of third material Think sand paper material, second material layer 02 can be sponge material, and the upper layer and lower layer of the second composite material 05 are sand paper, intermediate Layer is sponge.
In the present embodiment, the first drying cylinder set composite 5 includes support frame 1-1, the drying cylinder dress for being set to support frame 1-1 It sets 25-1 and is set to the silica gel roller mechanism 24-1 of the side drying cylinder device 25-1.Specifically, the structure of the first drying cylinder set composite 5 Identical as the structure of the second drying cylinder set composite 8, the second drying cylinder set composite 8 includes support frame 1-2, is set to support frame The drying cylinder device 25-2 of the 1-2 and silica gel roller mechanism 24-2 for being set to the side drying cylinder device 25-2;First sizer 4 is to second 02 gluing of material layer, after completing first time gluing, first material layer 01 and second material layer 02 are sent to silica gel roller mechanism 24- First material layer 01 and the compression of second material layer 02 are compounded to form the first composite material 03 by 1, silica gel roller mechanism 24-1, and first is multiple Condensation material 03 enters drying cylinder device 25-1, hot-rolling pressure of first composite material 03 by drying cylinder device 25-1, first material layer 01 It is securely combined with each other with second material layer 02, then the second sizer 7 completes second to 03 gluing of the first composite material After secondary gluing, third material layer 04 and the first composite material 03 are sent to silica gel roller mechanism 24-2, and silica gel roller mechanism 24-2 will Third material layer 04 and the first composite material 03 compression are compounded to form the second composite material 05, and the second composite material 05 enters drying cylinder Device 25-2, the second composite material 05 pass through the hot-rolling pressure of drying cylinder device 25-2, third material layer 04 and the first composite material 03 It is securely combined with each other, three kinds of materials is continuously disposably compounded to form three-in-one composite material.
In the present embodiment, the drying unit 9 is equipped with the waste air of cabinet 18 and the exhaust gas for being discharged in cabinet 18 Device 19.First drying cylinder set composite 5 and the second drying cylinder set composite 8 are in the course of work of hot-rolling pressure, the water containing glue The case of drying unit 9 is discharged by that can discharge exhaust gas, waste gas exhausting device 19 when cabinet 18 in exhaust gas by the second composite material 05 divided Body 18 prevents the second composite material 05 by exhaust emission.
In the present embodiment, the three-in-one composite structure further includes the traction device for drawing to the second composite material 05 11.Traction device 11 is used to draw the second composite material 05 dried by drying unit 9, right convenient for wrap-up 10 Second composite material 05 is wound.
In the present embodiment, the three-in-one composite structure further includes the metering for calculating the length of the second composite material 05 Device 12.Meter-measuring device 12 can automatically calculate the length of the second composite material 05, to know the production speed of composite structure Rate;Preferably, meter-measuring device 12 can be meter counter.
In the present embodiment, the three-in-one composite structure further includes multiple extractor fans 13.Due to the second composite material 05 Cementing, the baking of the drying cylinder device 25-1, the second drying cylinder set composite 8 of the first drying cylinder set composite 5 are needed in recombination process Wound packages sets 25-2 and generates heat when hot-rolling presses compound work, and glue has steam generation under thermal environment, and extractor fan 13 is used for It takes these steam away, prevents the first composite material 03 or the second composite material 05 from making moist;Preferably, extractor fan 13 can be pumping Fan.
In the present embodiment, the first drying cylinder set composite 5 and the second drying cylinder set composite 8 are equipped with multiple elastic adjustings Device 14, the slack adjuster 14 include the fixed frame 20 for being set to support frame 1-1,1-2, are slideably positioned in fixed frame 20 Feeding roller 21 and handle 22 for adjusting feeding roller 21, handle 22 connect with feeding roller 21.Specifically, support frame 1,1- 2 lower left, lower right are equipped with slack adjuster 14;The compound elasticity of different roll-ins is needed for different products, Slack adjuster 14 is used to adjust the drying cylinder device of first material layer 01, second material layer 02 and the first drying cylinder set composite 5 The distance of 25-1, slack adjuster 14 are also used to third material layer 04, the first composite material 03 and the second drying cylinder set composite 8 Drying cylinder device 25-2 distance, multiple fixed frames 20 are fixedly installed on support frame 1-1,1-2, and handle 22 is utilized to control feeding Roller 21 slides on fixed frame 20, to adjust feeding roller 21 at a distance from drying cylinder device 25-1,25-2.
In the present embodiment, the three-in-one composite structure further includes storage rack 15 and infeed set-up 16.To the second composite wood The crosscutting of material 05 is exactly infeed set-up 16 by the part of 05 width direction two sides breakage of the second composite material, compound nonoverlapping portion Cutting removes, and it is crosscutting that some second composite materials 05 need crosscutting, some second composite materials 05 not need, and needs crosscutting second It is crosscutting again after storage rack 15 using storage rack 15 after the first winding via wrap-up 10 of composite material 05;When needing cross When cutting product, traditional method, come what is realized, can waste many times, greatly often by the work for stopping production equipment in this way Production efficiency is reduced greatly, and the upper and lower side of the storage rack 15 of the application is respectively equipped with multiple rotating rollers, the second composite material 05 Successively pass through these rotating rollers, so that the travelling speed of the second composite material 05 slows down, so there is no need to stop production equipment Only, crosscutting, raising production efficiency can also be carried out to the second composite material 05.
In the present embodiment, the three-in-one composite structure further includes multiple help rolls 17.Help roll 17 is for assisting first The transport of material layer 01, second material layer 02, third material layer 04, the first composite material 03, the second composite material 05.
In the present embodiment, the three-in-one composite structure further includes multiple channels 23.Multiple 23 easy accesses of the channel Worker or operator's disengaging, improve convenience.
All technical characteristics in the present embodiment can be freely combined according to actual needs.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way, Do not depart from the technical program design under the premise of it is any obviously replace it is within the scope of the present invention.

Claims (10)

1. a kind of three-in-one composite structure, it is characterised in that: including the first unwinding device for unreeling first material layer, use In the second unwinding device for unreeling second material layer, it is used for the first sizer to second material layer gluing, is used for One material layer and second material layer roll-in are compounded to form the first drying cylinder set composite of the first composite material, are used for third material Third unwinding device that layer unreels, for the first composite material gluing the second sizer, for by the first composite material The second drying cylinder set composite of the second composite material is compounded to form, for drying the second composite material with third material layer roll-in Drying unit and for wind drying unit drying after the second composite material wrap-up.
2. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the first drying cylinder set composite packet The silica gel roller mechanism for including support frame, being set to the drying cylinder device of support frame and being set to drying cylinder device side.
3. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the drying unit be equipped with cabinet with And the waste gas exhausting device for the intracorporal exhaust gas of case to be discharged.
4. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the three-in-one composite structure also wraps Include the traction device for drawing to the second composite material.
5. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the three-in-one composite structure also wraps Include the meter-measuring device of the length for calculating the second composite material.
6. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the three-in-one composite structure also wraps Include multiple extractor fans.
7. a kind of three-in-one composite structure according to claim 2, it is characterised in that: the first drying cylinder set composite and Second drying cylinder set composite is equipped with multiple slack adjusters, and the slack adjuster includes the fixation for being set to support frame Frame, the feeding roller for being slideably positioned in fixed frame and the handle for adjusting feeding roller, handle are connect with feeding roller.
8. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the three-in-one composite structure also wraps Include storage rack and infeed set-up.
9. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the three-in-one composite structure also wraps Include multiple help rolls.
10. a kind of three-in-one composite structure according to claim 1, it is characterised in that: the three-in-one composite structure is also Including multiple channels.
CN201811130802.9A 2018-09-27 2018-09-27 A kind of three-in-one composite structure Pending CN109262479A (en)

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Application Number Priority Date Filing Date Title
CN201811130802.9A CN109262479A (en) 2018-09-27 2018-09-27 A kind of three-in-one composite structure

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Application Number Priority Date Filing Date Title
CN201811130802.9A CN109262479A (en) 2018-09-27 2018-09-27 A kind of three-in-one composite structure

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114030197A (en) * 2021-09-24 2022-02-11 湖南省醇龙箱包股份有限公司 Shell processing production line and processing method

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CN105437094A (en) * 2015-11-14 2016-03-30 东莞金太阳研磨股份有限公司 Yarn production process and device
CN206200783U (en) * 2016-11-30 2017-05-31 湖北重泰研磨工具有限公司 A kind of sponge sanding block production line
EP3199341A1 (en) * 2016-02-01 2017-08-02 Hofer Textilveredelungs GmbH Device and method for continuously producing a multilayer material structure
CN107020581A (en) * 2017-05-31 2017-08-08 安徽金诚复合材料有限公司 The hybrid system of sand sponge
CN206475550U (en) * 2016-12-01 2017-09-08 汕头市雅丽环保包装印刷有限公司 It is a kind of can simultaneously composite three-layer thin-film material equipment complex
CN207888475U (en) * 2017-12-28 2018-09-21 常州市金牛研磨有限公司 Manufacturing device for sand paper
CN208913902U (en) * 2018-09-27 2019-05-31 东莞金太阳研磨股份有限公司 A kind of three-in-one composite structure

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Publication number Priority date Publication date Assignee Title
CN104044328A (en) * 2014-06-23 2014-09-17 无锡市华泰医药包装有限公司 Three-layer aluminum-plastic film compounding equipment and three-layer aluminum-plastic film compounding process
CN105437094A (en) * 2015-11-14 2016-03-30 东莞金太阳研磨股份有限公司 Yarn production process and device
EP3199341A1 (en) * 2016-02-01 2017-08-02 Hofer Textilveredelungs GmbH Device and method for continuously producing a multilayer material structure
CN206200783U (en) * 2016-11-30 2017-05-31 湖北重泰研磨工具有限公司 A kind of sponge sanding block production line
CN206475550U (en) * 2016-12-01 2017-09-08 汕头市雅丽环保包装印刷有限公司 It is a kind of can simultaneously composite three-layer thin-film material equipment complex
CN107020581A (en) * 2017-05-31 2017-08-08 安徽金诚复合材料有限公司 The hybrid system of sand sponge
CN207888475U (en) * 2017-12-28 2018-09-21 常州市金牛研磨有限公司 Manufacturing device for sand paper
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114030197A (en) * 2021-09-24 2022-02-11 湖南省醇龙箱包股份有限公司 Shell processing production line and processing method

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Address after: No.1 DAHUAN Road, Dalingshan Town, Dongguan City, Guangdong Province 523000

Applicant after: DONGGUAN GOLDEN SUN ABRASIVES Co.,Ltd.

Address before: 523000 Guangdong province Dongguan City Dalingshan Town big loop No. 66 East

Applicant before: DONGGUAN GOLDEN SUN ABRASIVES Co.,Ltd.