CN114889145A - TPU product cloth pasting process - Google Patents
TPU product cloth pasting process Download PDFInfo
- Publication number
- CN114889145A CN114889145A CN202210696888.1A CN202210696888A CN114889145A CN 114889145 A CN114889145 A CN 114889145A CN 202210696888 A CN202210696888 A CN 202210696888A CN 114889145 A CN114889145 A CN 114889145A
- Authority
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- China
- Prior art keywords
- cloth
- tpu
- piece
- product
- tpu product
- 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
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- 239000004744 fabric Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003825 pressing Methods 0.000 claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000011345 viscous material Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/03—After-treatments in the joint area
- B29C66/032—Mechanical after-treatments
- B29C66/0322—Post-pressing without reshaping, i.e. keeping the joint under pressure after joining
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to the technical field of processing devices, and provides a TPU product cloth pasting process, which is characterized by comprising the following steps: s1: preparation process, putting TPU products and cloth in proper positions, S2: the TPU goods carry out the preliminary treatment, start and paste the subassembly, and the drive is placed the layer board entering of TPU goods and is pasted the subassembly and carry the gap between the piece, pastes the subassembly and carries out the preliminary treatment to the TPU goods, S3: cloth is bonded with the end of the TPU product, the pretreated supporting plate is continuously driven, and the TPU product is bonded with the end of the cloth in the step S13; s4: the cloth and the TPU product are integrally bonded, the pressing piece is pressed downwards, and the cloth between the pressing piece and the conveying roller is tightly attached to the TPU product to complete bonding. Through above-mentioned technical scheme, the problem that influences production efficiency because on-the-spot flocking among the prior art has been solved.
Description
Technical Field
The invention relates to the technical field of processing devices, in particular to a TPU product cloth pasting process.
Background
The TPU material product can be manufactured and molded by adopting processes such as injection molding, plastic sucking, 3D printing and the like, and a layer of soft cloth needs to be adhered to the surface of the TPU material product in order to increase the affinity and the expression of the surface of the TPU material product.
In the existing production process of the TPU material, the soft cloth and the TPU material are not easy to combine, special equipment is usually adopted for on-line flocking process manufacturing, the required equipment investment is relatively large, the on-site flocking speed is slow, and further the production efficiency of TPU products is influenced.
Disclosure of Invention
The invention provides a TPU product cloth pasting process, which solves the problem that production efficiency is influenced by field flocking in the prior art.
The technical scheme of the invention is as follows: a TPU product cloth sticking process is characterized by comprising the following steps:
s1: the preparation process comprises the following steps of placing the TPU product and the cloth in proper positions
S11: feeding TPU products, conveying the formed TPU products cut by an upstream production line to a supporting plate
The conveying roller is used for moving on the machine frame;
s12: feeding the cloth, rotating the unwinding roller for winding the cloth, and passing the unwound cloth between the pressing piece and the conveying roller to press the cloth
The movable piece moves downwards to press the TPU product and the cloth;
s13: gluing the cloth end, sticking a layer of viscous material on the end of the cloth extending out between the pressing piece and the conveying roller,
s2: pretreating the TPU product, starting a pasting assembly, driving a supporting plate with the TPU product to enter a gap between the pasting assembly and a conveying roller, pretreating the TPU product by the pasting assembly,
s3: the cloth is bonded with the end of the TPU product, the pretreated supporting plate is continuously driven, and the TPU product is bonded with the end of the cloth in the step S13;
s4: the cloth and the TPU product are integrally bonded, the pressing piece is pressed downwards, and the cloth between the pressing piece and the conveying roller is tightly attached to the TPU product to complete bonding.
As a further technical proposal, the method also comprises
A fixed shaft parallel to the unwinding roller, and two ends of the fixed shaft are connected with the frame,
and the rotating roller is rotatably sleeved on the fixed shaft.
As a further technical solution, the step S2 further includes
S21: after the unwinding roller is rotated, the unwound cloth end passes through the gap between the rotating roller and the pressing piece, bypasses the pressing piece and pulls the cloth to pass through the gap between the pressing piece and the conveying roller,
s22: and continuously pulling the cloth, and extruding the cloth by the rotating roller to ensure that the cloth is smooth.
As a further technical proposal, the method also comprises
The fixing pieces are positioned on two sides of the bottom of the rack and connected with the rack;
the telescopic pieces are located on two sides of the rack, one end of each telescopic piece is connected with the fixing piece, an adjusting groove is formed in the rack, the pressing piece is arranged in the adjusting groove in a sliding mode, and the pressing piece is connected with the other end of each telescopic piece.
As a further technical solution, the step S4 includes
S41: the adjustment of the telescopic part is carried out,
s42: and continuously pushing the supporting plate, and extruding the cloth and the TPU product by the pressing piece.
As a further technical solution, the pasting component comprises
Connecting pieces which are positioned at two sides of the frame and are connected with the frame,
the pretreatment piece is positioned in the machine frame, the pressing piece and the rolling piece are respectively positioned at two sides of the unwinding roller, the connecting piece is connected with and drives the pretreatment piece and the machine frame,
and the adjusting piece is positioned on the upper side of the pretreatment piece and is connected with the pretreatment piece.
As a further technical scheme, the pretreatment piece comprises
The heating cover is positioned in the machine frame and is connected with the machine frame through the connecting piece, the heating cover is provided with a splicing hole,
the heater is positioned in the plug hole and is connected with the heating cover,
the heating plate is positioned between the heating cover and the supporting plate, a heat conducting groove is formed in the heating plate, and the heater is inserted in the heat conducting groove.
As a further technical solution, the step S2 includes
S21: and starting the heater to carry out heat treatment on the heating plate.
The working principle and the beneficial effects of the invention are as follows:
when using the cloth sticking device among this technical scheme to carry out cloth sticking to TPU goods and handling, the operator only needs to convey the layer board into along the gap between pressure movable piece and the conveying roller, then adjusts the gap between pressure movable piece and the layer board, presses movable piece and bonds cloth and TPU goods firmly, easy operation and firm, and the cost is lower moreover, the effectual efficiency of construction that improves the cloth and paste.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view showing a part of the structure of a conveying roller according to the present invention;
fig. 3 is a part of the structural diagram of the present invention.
In the figure: 1. a support plate; 2. unwinding rollers; 3. a conveying roller; 5. a pasting component; 6. a frame; 7. a fixed shaft; 8. a rotating roller; 9. a fixing member; 10. a telescoping member; 11. a pressing piece; 12. an adjustment groove; 13. a connecting member; 14. a pretreatment piece; 15. an adjustment member; 16. a heating mantle; 17. a heater; 18. heating the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1 to fig. 3, the embodiment provides a TPU product cloth pasting process, which includes the following steps:
s1: the preparation process comprises the following steps of placing the TPU product and the cloth in proper positions
S11: feeding the TPU product, conveying the formed TPU product cut by the upstream production line to a supporting plate 1, and supporting
The plate 1 is intended to move on a conveyor roller 3 on a frame 6;
s12: discharging the cloth, rotating the unwinding roller 2 for winding the cloth, and passing the unwound cloth through the pressing member 11 and the delivery roller 3
The pressing piece 11 moves downwards to press the TPU product and the cloth;
s13: the cloth end is glued, a layer of viscous material is stuck at the end part of the cloth extending out between the pressing piece 11 and the conveying roller 3,
s2: pretreating the TPU product, starting a pasting component 5, driving a supporting plate 1 with the TPU product to enter a gap between the pasting component 5 and a conveying roller 3, pretreating the TPU product by the pasting component 5,
s3: the cloth is bonded with the end of the TPU product, the pretreated supporting plate 1 is continuously driven, and the TPU product is bonded with the end of the cloth in the step S13;
s4: the cloth and the TPU product are integrally bonded, the pressing piece 11 is pressed downwards, and the cloth between the pressing piece 11 and the conveying roller 3 is tightly attached to the TPU product to complete bonding.
In this embodiment, when using the cloth sticking device among this technical scheme to paste the cloth to TPU goods and handle, the operator only needs to follow the gap conveying of pressing between 11 and the conveying roller 3 with layer board 1 and enters, then adjusts the gap between 11 and the layer board of pressing, presses 11 firm with cloth and TPU goods bonding of piece, easy operation and firm, and the cost is lower moreover, the effectual efficiency of construction that the cloth was pasted that has improved.
Further, also comprises
A fixed shaft 7 parallel to the unwinding roller 2, and two ends of the fixed shaft 7 are connected with the frame 6,
the rotating roller 8 is rotatably sleeved on the fixed shaft 7.
Further, step S2 includes
S21: after the unwinding roller 2 is rotated, the unwound cloth end passes through the gap between the rotating roller 8 and the pressing member 11, the cloth is pulled around the pressing member 11 to pass through the gap between the pressing member 11 and the conveying roller 3,
s22: the cloth is continuously pulled, and the rotating roller 8 extrudes the cloth to ensure that the cloth is smooth.
In the embodiment, the arrangement of the rotating roller 8 has a fixing effect on the shape of the cloth in the conveying process, so that the use convenience of the cloth sticking device is improved.
Further, also comprises
The fixing pieces 9 are positioned on two sides of the bottom of the rack 6 and connected with the rack 6;
the extensible member 10 is located two sides of the frame 6, one end of the extensible member 10 is connected with the fixing member 9, an adjusting groove 12 is formed in the frame 6, the pressing member 11 is arranged in the adjusting groove 12 in a sliding mode, and the pressing member 11 is connected with the other end of the extensible member 10.
Further, step S4 includes
S41: the adjustment of the telescopic member (10) is carried out,
s42: the supporting plate 1 is pushed continuously, and the pressing piece 11 extrudes the cloth and the TPU product.
In this embodiment, the extensible member 10 is an extension spring, and experiments prove that the extension spring can provide 5-10N for the pressing member 11, wherein when the pulling force is 8N, the adhesive is not pressed out, the adhesive is firmly adhered, and the adhering effect is optimal.
Further, the pasting assembly 5 comprises
Connecting pieces 13 which are positioned at two sides of the frame 6 and are connected with the frame 6,
the pretreatment piece 14 is positioned in the frame 6, the pressing piece 11 is respectively positioned at two sides of the unwinding roller 2, the connecting piece 13 is connected with and drives the pretreatment piece 14 and the frame 6,
and an adjusting member 15 positioned on the upper side of the pretreatment member 14 and connected to the pretreatment member 14.
In this embodiment, there are various ways of pre-treating the pre-treating member 14, for example, heating the supporting plate 1 to facilitate the cloth sticking of the supporting plate 1, or applying glue to the supporting plate 1 by the pre-treating member 14 to facilitate the subsequent cloth sticking.
Further, the pretreatment piece 14 includes
A heating cover 16 which is positioned in the frame 6 and is connected with the frame 6 through a connecting piece 13, the heating cover 16 is provided with a plug hole,
a heater 17 which is positioned in the plug hole and is connected with the heating cover 16,
and the heating plate 18 is positioned between the heating cover 16 and the supporting plate 1, a heat conduction groove is formed in the heating plate 18, and the heater 17 is inserted in the heat conduction groove.
Further, step S2 includes
S21: the heater 17 is activated to heat-treat the heating plate 18.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A TPU product cloth sticking process is characterized by comprising the following steps:
s1: the preparation process comprises the following steps of placing the TPU product and the cloth in proper positions
S11: feeding a TPU product, namely conveying the formed TPU product cut by an upstream production line onto a supporting plate (1), wherein the supporting plate (1) is used for moving on a conveying roller (3) on a rack (6);
s12: cloth is discharged, an unwinding roller (2) for winding the cloth is rotated, the unwound cloth penetrates between a pressing piece (11) and a conveying roller (3), and the pressing piece (11) moves downwards to press TPU products and the cloth;
s13: the cloth end is coated with glue, a layer of viscous substance is stuck at the end part of the cloth between the extending pressing piece (11) and the conveying roller (3),
s2: pretreating the TPU product, starting a pasting component (5), driving a supporting plate (1) with the TPU product to enter a gap between the pasting component (5) and a conveying roller (3), pretreating the TPU product by the pasting component (5),
s3: the cloth is bonded with the end of the TPU product, the pretreated supporting plate (1) is continuously driven, and the TPU product is bonded with the end of the cloth in the step S13;
s4: the cloth and the TPU product are integrally bonded, the pressing piece (11) is pressed downwards, and the cloth between the pressing piece (11) and the conveying roller (3) is tightly attached to the TPU product to complete bonding.
2. The TPU article rubberizing process of claim 1, further comprising
A fixed shaft (7) which is parallel to the unwinding roller (2), and two ends of the fixed shaft (7) are connected with the frame (6),
and the rotating roller (8) is rotatably sleeved on the fixed shaft (7).
3. The process of laying a TPU product as set forth in claim 2, wherein step S2 further includes
S21: after the unwinding roller (2) is rotated, the unwound cloth end passes through the gap between the rotating roller (8) and the pressing member (11), the cloth is wound around the pressing member (11) and pulled to pass through the gap between the pressing member (11) and the conveying roller (3),
s22: the cloth is continuously pulled, and the rotating roller (8) extrudes the cloth to ensure that the cloth is smooth.
4. The TPU article rubberizing process of claim 1, further comprising
The fixing pieces (9) are positioned on two sides of the bottom of the rack (6) and connected with the rack (6);
the telescopic pieces (10) are located on two sides of the rack (6), one end of each telescopic piece (10) is connected with the fixing piece (9), an adjusting groove (12) is formed in the rack (6), the pressing piece (11) is arranged in the adjusting groove (12) in a sliding mode, and the pressing piece (11) is connected with the other end of each telescopic piece (10).
5. The TPU article rubberizing process of claim 4, wherein the step S4 comprises
S41: -adjusting the telescopic element (10),
s42: the supporting plate (1) is continuously pushed, and the pressing piece (11) extrudes the cloth and the TPU product.
6. A TPU product taping process according to claim 1, wherein the taping assembly (5) includes
The connecting pieces (13) are positioned at two sides of the frame (6) and are connected with the frame (6),
the pretreatment piece (14) is positioned in the frame (6), the pressing piece (11) and the unwinding roller (2) are respectively positioned at two sides, the connecting piece (13) is connected with and drives the pretreatment piece (14) and the frame (6),
and the adjusting piece (15) is positioned on the upper side of the pretreatment piece (14) and is connected with the pretreatment piece (14).
7. A TPU article rubberizing process according to claim 6, characterized in that said pretreatment piece (14) comprises
The heating cover (16) is positioned in the rack (6) and is connected with the rack (6) through the connecting piece (13), the heating cover (16) is provided with a splicing hole,
a heater (17) positioned in the plug hole and connected with the heating cover (16),
the heating plate (18) is positioned between the heating cover (16) and the supporting plate (1), a heat conducting groove is formed in the heating plate (18), and the heater (17) is inserted into the heat conducting groove.
8. The process of laying a TPU product as set forth in claim 7, wherein step S2 includes
S21: the heater (17) is activated to heat-treat the heating plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696888.1A CN114889145A (en) | 2022-06-20 | 2022-06-20 | TPU product cloth pasting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210696888.1A CN114889145A (en) | 2022-06-20 | 2022-06-20 | TPU product cloth pasting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114889145A true CN114889145A (en) | 2022-08-12 |
Family
ID=82729052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210696888.1A Pending CN114889145A (en) | 2022-06-20 | 2022-06-20 | TPU product cloth pasting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114889145A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0664761U (en) * | 1993-02-27 | 1994-09-13 | 株式会社信越工機 | Edge material sticking device |
| CN106608089A (en) * | 2015-10-29 | 2017-05-03 | 保定威奕汽车有限公司 | On-line cloth sticking device for workpieces |
| CN107323063A (en) * | 2017-07-18 | 2017-11-07 | 上海济子医药科技有限公司 | TPU cloth pastings device and attaching process |
| KR101970459B1 (en) * | 2018-04-25 | 2019-04-22 | 주훈석 | Apparatus for making tape for electric device |
| CN210590932U (en) * | 2019-07-12 | 2020-05-22 | 盐城恒天无纺布科技有限公司 | Laminating machine is used in non-woven fabrics production |
| CN212175323U (en) * | 2020-03-27 | 2020-12-18 | 东莞市全丰新材料科技有限公司 | Hot-fix rhinestone with TPU film and hot-fix drilling machine for producing hot-fix rhinestone |
| CN112848533A (en) * | 2021-01-07 | 2021-05-28 | 余共富 | Composite non-woven fabric and processing equipment thereof |
| WO2021169647A1 (en) * | 2020-02-28 | 2021-09-02 | 北新集团建材股份有限公司 | Decorative plate, production line thereof and production process therefor |
| CN218013675U (en) * | 2022-06-20 | 2022-12-13 | 金九智能增材制造有限公司 | 3D prints TPU rubber coating device |
-
2022
- 2022-06-20 CN CN202210696888.1A patent/CN114889145A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0664761U (en) * | 1993-02-27 | 1994-09-13 | 株式会社信越工機 | Edge material sticking device |
| CN106608089A (en) * | 2015-10-29 | 2017-05-03 | 保定威奕汽车有限公司 | On-line cloth sticking device for workpieces |
| CN107323063A (en) * | 2017-07-18 | 2017-11-07 | 上海济子医药科技有限公司 | TPU cloth pastings device and attaching process |
| KR101970459B1 (en) * | 2018-04-25 | 2019-04-22 | 주훈석 | Apparatus for making tape for electric device |
| CN210590932U (en) * | 2019-07-12 | 2020-05-22 | 盐城恒天无纺布科技有限公司 | Laminating machine is used in non-woven fabrics production |
| WO2021169647A1 (en) * | 2020-02-28 | 2021-09-02 | 北新集团建材股份有限公司 | Decorative plate, production line thereof and production process therefor |
| CN212175323U (en) * | 2020-03-27 | 2020-12-18 | 东莞市全丰新材料科技有限公司 | Hot-fix rhinestone with TPU film and hot-fix drilling machine for producing hot-fix rhinestone |
| CN112848533A (en) * | 2021-01-07 | 2021-05-28 | 余共富 | Composite non-woven fabric and processing equipment thereof |
| CN218013675U (en) * | 2022-06-20 | 2022-12-13 | 金九智能增材制造有限公司 | 3D prints TPU rubber coating device |
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