CN117160805B - Chemical fiber non-woven fabric waterproof layer coating device - Google Patents
Chemical fiber non-woven fabric waterproof layer coating device Download PDFInfo
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- CN117160805B CN117160805B CN202311435100.2A CN202311435100A CN117160805B CN 117160805 B CN117160805 B CN 117160805B CN 202311435100 A CN202311435100 A CN 202311435100A CN 117160805 B CN117160805 B CN 117160805B
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- 238000000576 coating method Methods 0.000 title claims abstract description 76
- 239000011248 coating agent Substances 0.000 title claims abstract description 75
- 239000000835 fiber Substances 0.000 title claims abstract description 36
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 36
- 239000000126 substance Substances 0.000 title claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims abstract description 21
- 238000003860 storage Methods 0.000 claims description 33
- 239000003292 glue Substances 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 12
- 238000005485 electric heating Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 7
- 239000005871 repellent Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000012782 phase change material Substances 0.000 claims description 3
- 238000004513 sizing Methods 0.000 abstract description 28
- 239000007788 liquid Substances 0.000 abstract description 27
- 239000000463 material Substances 0.000 abstract description 26
- 239000002245 particle Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000007667 floating Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 8
- 239000004744 fabric Substances 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to a chemical fiber non-woven fabric waterproof layer coating device applied to the field of surface coating liquid devices, in the normal working process of the scheme, when liquid sizing material temporarily stored in a transition tank is excessive, a floater can jack a feeding rod integrally under the action of floating force of the liquid sizing material, a closed heat insulation space is formed by the feeding rod and a heat insulation plate, at the moment, heat generated by a constant temperature heating head cannot be transmitted outwards, the constant temperature heating head can be temporarily in a low-energy consumption state, and along with the outflow and the liquid level decline of the liquid sizing material in the transition tank, the feeding rod integrally moves downwards until the constant temperature heating head returns to the position of a feeding hole again, meanwhile, the heat of the constant temperature heating head is not reduced, the heating operation is not required to be restarted, the heating operation of sizing material particles can be directly carried out, the working state of the feeding rod can be controlled according to the actual process of processing, the power consumption of the feeding rod is further controlled, the coating energy consumption of the chemical fiber non-woven fabric is greatly reduced, and the economic benefit is improved.
Description
Technical Field
The invention relates to a chemical fiber non-woven fabric waterproof layer coating device, in particular to a chemical fiber non-woven fabric waterproof layer coating device applied to the field of surface coating liquid devices.
Background
The waterproof layer is generally coated with a coater: the surface coating process is mainly used for producing films, papers, cloths and the like, and is characterized in that a coiled base material is coated with a layer of glue, paint or ink with specific functions and the like, dried and cut into pieces or coiled.
The specification of Chinese patent No. 116493181A discloses an automatic glue coating device for PU waterproof cloth, which comprises a frame, a conveying mechanism arranged on the frame and used for conveying cloth, a collecting tank arranged on one side of the conveying mechanism and used for placing the cloth, a coating roller arranged above the collecting tank and used for coating the cloth, and a feeding mechanism arranged above the coating roller and used for dripping coating materials on the surface of the coating roller, wherein a gap only used for the cloth to pass through is formed between the coating roller and the collecting tank; the top of one side of the frame is provided with a motor, an output shaft of the motor is connected with a screw rod through a coupling, the other end of the screw rod is rotationally connected with the other side of the frame, threads on the left side and the right side of the surface of the screw rod are opposite in rotation direction, the surface of the screw rod is sleeved with an adjusting mechanism left and right, and a clutch mechanism is arranged in the adjusting mechanism; the coating device accords with the production concept of high-efficiency short flow through the cooperation of the clutch mechanism and the adjusting mechanism, and the waterproof performance of the waterproof cloth produced by the coating device is effectively improved through the cooperation of the coating roller and the collecting tank.
The waterproof layer material is solid under normal temperature environment, and in the working process of coating, the waterproof layer material needs to be heated to be changed into liquid and then to be coated, in the normal coating work, continuous heating and stirring are usually needed to be carried out to meet the requirements of the coating work, and in the process, a large amount of electric energy needs to be consumed, so that the waterproof layer coating work becomes a high-energy industry, does not conform to the current environmental protection theme, and has lower economic benefit.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the technical problems that the chemical fiber non-woven fabric coating work becomes a high-energy-consumption industry, does not accord with the current environmental protection theme, and has lower economic benefit.
In order to solve the problems, the invention provides a chemical fiber non-woven fabric waterproof layer coating device, which comprises a pair of conveying rollers, wherein chemical fiber non-woven fabrics are arranged on the conveying rollers, a glue coating chamber is arranged on the upper side of the chemical fiber non-woven fabrics, the glue coating chamber is attached to the upper end of the chemical fiber non-woven fabrics, a coating plate is fixedly connected to the upper inner wall of the glue coating chamber, the glue coating chamber is divided into two parts of a coating room and a negative pressure drying room according to the movement direction of the chemical fiber non-woven fabrics by the coating plate, a feeding device is fixedly connected in the coating room, a negative pressure ventilation pipe is fixedly connected to the upper end of the negative pressure drying room, and the negative pressure ventilation pipe is communicated with the negative pressure drying room;
the feeding device comprises a storage tank and a transition tank which are matched with each other, a connecting pipe is fixedly connected between the storage tank and the transition tank, the storage tank is fixedly connected with a glue coating chamber, the connecting pipe is communicated with the storage tank and the transition tank, the inner wall of the storage tank is fixedly connected with a heat insulation pipe which is matched with the connecting pipe, one end of the heat insulation pipe, which is close to the connecting pipe, is provided with a plurality of feeding holes in an cutting mode, a feeding rod is inserted in the heat insulation pipe, the feeding rod comprises a constant-temperature heating head, the lower end of the constant-temperature heating head is fixedly connected with a heat insulation plate, the lower end of the heat insulation plate is fixedly connected with a connecting column, the lower end of the connecting column is fixedly connected with a floater, the upper end of the storage tank is provided with a charging hole, the inner thread of the charging hole is connected with a sealing cover which is matched with the self, and the lower end of the transition tank is provided with a discharging hole, and a plurality of glue particles are placed in the storage tank.
In the automatic glue coating device for the chemical fiber non-woven fabric, the energy consumption of the chemical fiber non-woven fabric coating work is greatly reduced, and the economic effect is improved.
As a still further improvement of the application, each structure of the feeding device is made of heat insulation materials, so that the energy leakage is reduced, and the energy consumption is reduced.
Still further as this application, the cutting has the rotation groove on the spliced pole, and when the lower extreme of material loading stick and transition jar inner wall contact, the position phase-match of rotation groove and connecting pipe, the rotation inslot rotation is connected with prevents blockking up the fan, prevents blockking up the fan and includes the rotation pipe, fixedly connected with is a plurality of prevent blockking up the fan on the lateral wall of rotation pipe, liquid sizing material can promote when flowing through the connecting pipe to the transition jar and prevent blockking up the fan and rotate, stirs liquid sizing material for liquid sizing material is difficult for solidifying in connecting pipe department and blockking up.
As a further improvement of the application, the anti-blocking fan is embedded with a storage bag, the storage bag is filled with a phase change material, the constant temperature heating head moves to the top end of the heat insulation pipe, and when the heating source for heating the sizing particles is not provided, the anti-blocking fan can keep high temperature for a long time, so that the liquid sizing is not easy to solidify and block at the anti-blocking fan.
As a further improvement of the present application, the outside cladding of storage bag has the electric heating net, and the electric heating net inlays in the storage bag surface, solidifies in anti-blocking fan piece department when liquid sizing material, leads to anti-blocking fan piece unable rotation, and when the connecting pipe was blockked up, can start the electric heating net, melts sizing material granule, dredges the connecting pipe.
As a further improvement of the anti-blocking fan, the tooth-shaped grooves are cut on the surface of the anti-blocking fan, the tooth-shaped grooves are parallel to each other, the surface area of the anti-blocking fan is increased, the heat exchange efficiency of the anti-blocking fan is improved, and the connecting pipe is easy to keep smooth.
As a further improvement supplement of the application, the anti-blocking fan blade surface is coated with the PU-repellent coating, and the PU-repellent coating is smooth in surface, so that the liquid sizing material is not easy to remain on the surface of the anti-blocking fan blade and is not easy to cause the blocking of the connecting pipe.
In addition, when the scheme works, when the liquid sizing material temporarily stored in the transition tank is excessive, the floater can jack the feeding rod integrally under the action of the self-floating force, a closed heat insulation space is formed by the feeding rod and the heat insulation plate, the heat generated by the constant-temperature heating head cannot be transmitted outwards, the constant-temperature heating head can be temporarily in a low-energy consumption state, and the feeding rod integrally moves downwards along with the outflow and the liquid level decline of the liquid sizing material in the transition tank until the constant-temperature heating head returns to the position of the feeding hole again, meanwhile, the heat of the constant-temperature heating head is not reduced, the heating operation is not required to be restarted, the heating operation of sizing material particles can be directly carried out, the working state of the feeding rod can be controlled according to the actual process of processing, the power consumption of the feeding rod is further controlled, the non-woven fabric coating energy consumption of chemical fiber is greatly reduced, and the economic benefit is improved.
Drawings
Fig. 1 is a schematic main structural diagram of an automated glue coating device for chemical fiber nonwoven fabrics according to a first embodiment of the present application;
fig. 2 is a schematic structural diagram of a feeding device according to a first embodiment of the present application;
fig. 3 is a schematic diagram illustrating changes in operation of the feeding device according to the first embodiment of the present application;
fig. 4 is a schematic cross-sectional structure of a feeding device according to a first embodiment of the present disclosure before operation;
fig. 5 is a schematic cross-sectional structure of the feeding device according to the first embodiment of the present application after stopping feeding;
fig. 6 is a schematic structural view of a feeding rod according to a first embodiment of the present application;
fig. 7 is a schematic cross-sectional structure of a feeding device before operation according to a second embodiment of the present application;
fig. 8 is a schematic structural view of a feeding rod according to a second embodiment of the present application;
fig. 9 is a schematic structural view of an anti-blocking fan according to a second embodiment of the present application;
fig. 10 is a schematic cross-sectional view of an anti-clogging fan blade according to a second embodiment of the present application.
The reference numerals in the figures illustrate:
1 conveying roller, 2 glue coating chambers, 3 coating plates, 4 coating chambers, 5 negative pressure drying chambers, 6 feeding devices, 601 storage tanks, 602 transition tanks, 603 connecting pipes, 604 sealing covers, 605 discharge ports, 7 negative pressure ventilation pipes, 8 chemical fiber non-woven fabrics, 9 glue layers, 10 heat insulation pipes, 11 feeding holes, 12 feeding rods, 1201 constant temperature heating heads, 1202 heat insulation plates, 1203 connecting columns, 1204 floats, 1205 rotating grooves, 13 glue particles, 14 liquid glue, 15 anti-blocking fans, 1501 rotating pipes, 1502 anti-blocking fans, 1503 tooth grooves, 1504 storage bags and 1505 electric heating nets.
Detailed Description
Two embodiments of the present application are described in detail below with reference to the accompanying drawings.
First embodiment:
fig. 1 shows a chemical fiber non-woven fabric waterproof layer coating device, which comprises a pair of conveying rollers 1, wherein chemical fiber non-woven fabrics 8 are arranged on the conveying rollers 1, a glue coating chamber 2 is arranged on the upper side of the chemical fiber non-woven fabrics 8, the glue coating chamber 2 is attached to the upper end of the chemical fiber non-woven fabrics 8, a coating plate 3 is fixedly connected to the upper inner wall of the glue coating chamber 2, the coating plate 3 divides the glue coating chamber 2 into two parts of a coating room 4 and a negative pressure drying room 5 according to the movement direction of the chemical fiber non-woven fabrics 8, a feeding device 6 is fixedly connected in the coating room 4, a negative pressure ventilation pipe 7 is fixedly connected to the upper end of the negative pressure drying room 5, and the negative pressure ventilation pipe 7 is communicated with the negative pressure drying room 5;
referring to fig. 2-6, the feeding device 6 includes a storage tank 601 and a transition tank 602 which are matched with each other, and fixedly connected with a connecting pipe 603 between them, and the storage tank 601 is fixedly connected with a glue coating chamber 2, the connecting pipe 603 is communicated with the storage tank 601 and the transition tank 602, the inner wall of the storage tank 601 is fixedly connected with a thermal insulation pipe 10 matched with the connecting pipe 603, one end of the thermal insulation pipe 10 close to the connecting pipe 603 is cut with a plurality of feeding holes 11, a feeding rod 12 is inserted into the thermal insulation pipe 10, the feeding rod 12 includes a constant temperature heating head 1201, the lower end of the constant temperature heating head 1201 is fixedly connected with a thermal insulation board 1202, the lower end of the thermal insulation board 1202 is fixedly connected with a connecting column 1203, the lower end of the connecting column 1203 is fixedly connected with a float 1204, the upper end of the storage tank 601 is provided with a feeding port, the feeding port is internally threaded connected with a sealing cover 604 matched with the self, the lower end of the transition tank 602 is cut with a discharging port 605, and a plurality of glue particles 13 are placed in the storage tank 601.
Wherein each structure of the feeding device 6 is made of heat insulation materials, so that the energy leakage is reduced, and the energy consumption is reduced.
In this scheme, the temperature of constant temperature heating head 1201 can be regulated and controlled automatically for constant temperature heating head 1201 can keep stable at the in-process temperature, and this can be jointly realized through PLC and sensor, is the well-known technique of skilled person in the art, so not disclose in detail in this application, and the skilled person can carry out reasonable design according to prior art to satisfy the work user demand of constant temperature heating head 1201.
When the scheme works normally, the constant temperature heating head 1201 is electrified to generate heat to melt sizing particles 13 into liquid sizing material 14, and enters the transition tank 602 through the connecting pipe 603, finally, the sizing particles flow out of the feeding device 6 through the discharging port 605, the sizing particles are coated on the surface of the chemical fiber non-woven fabric 8 to form a glue layer 9, after being coated and leveled through the coating plate 3, the sizing particles are dried and shaped in the negative pressure drying room 5 to finish the PU coating work, when the temporarily stored liquid sizing material 14 in the transition tank 602 is excessive, the floater 1204 can jack the whole feeding rod 12 up under the action of self-buoyancy until the constant temperature heating head 1201 is jacked to the upper side of the feeding hole 11, a closed heat insulation space is formed by the feeding rod 12 and the heat insulation board 1202, the constant temperature heating head 1201 is sealed, at this moment, the heat generated by the constant temperature heating head 1201 is not transmitted outwards, the constant temperature heating head 1201 is temporarily in a standby state, and the supply of electric energy is stopped, and the sizing particles 13 also stops melting, and the flowing out of the liquid sizing material 14 and the liquid level in the transition tank 602 are lowered, the whole feeding rod 12 is also moved down until the position of the constant temperature heating head is restored to the position of the constant temperature heating head 11, the position of the constant temperature heating head is restored, the heat consumption of the sizing material is greatly reduced, the practical heating performance of the non-conductive to the non-woven fabric is improved, the practical performance is realized, and the practical performance of the heating performance is improved, and the performance of the performance is improved.
Second embodiment:
fig. 7-9 show a chemical fiber non-woven fabric waterproof layer coating device, wherein a rotating groove 1205 is cut on a connecting column 1203, when the lower end of a feeding rod 12 is in contact with the inner wall of a transition tank 602, the position of the rotating groove 1205 is matched with the position of a connecting pipe 603, an anti-blocking fan 15 is rotationally connected in the rotating groove 1205, the anti-blocking fan 15 comprises a rotating pipe 1501, a plurality of anti-blocking fans 1502 are fixedly connected on the side wall of the rotating pipe 1501, and when flowing to the transition tank 602 through the connecting pipe 603, a liquid sizing material 14 can push the anti-blocking fans 1502 to rotate to stir the liquid sizing material 14, so that the liquid sizing material 14 is not easy to solidify and block at the connecting pipe 603.
Referring to fig. 10, a storage bag 1504 is embedded in an anti-blocking fan 1502, a phase change material is filled in the storage bag 1504, wherein the anti-blocking fan 15 is integrally made of a high heat conductive material, when a constant temperature heating head 1201 moves to the top end of a thermal insulation pipe 10 and no heating heat source is provided for glue particles 13, the anti-blocking fan 15 can keep high temperature for a long time, so that the liquid glue 14 is not easy to solidify and block at the anti-blocking fan 1502, an electric heating net 1505 is coated on the outer side of the storage bag 1504, and the electric heating net 1505 is embedded on the surface of the storage bag 1504, when the liquid glue 14 solidifies at the anti-blocking fan 1502, the anti-blocking fan 1502 cannot rotate, and when a connecting pipe 603 is blocked, the electric heating net 1505 can be started to melt the glue particles 13 and dredge the connecting pipe 603.
Tooth-shaped grooves 1503 are cut on the surface of the anti-blocking fan 1502, the tooth-shaped grooves 1503 are parallel to each other, the surface area of the anti-blocking fan 1502 is increased, the heat exchange efficiency of the anti-blocking fan 1502 is increased, the smoothness of the connecting pipe 603 is easy to keep, the surface of the anti-blocking fan 1502 is coated with a PU (polyurethane) coating, and the surface of the PU coating is smooth, so that liquid sizing material 14 is not easy to remain on the surface of the anti-blocking fan 1502, and the blocking of the connecting pipe 603 is not easy to be caused.
Compared with the first implementation method, the implementation method refines the structure of the feeding rod 12 at the connecting pipe 603, effectively prevents the connecting pipe 603 from being blocked, but increases the use cost at the same time, and technicians can reasonably select according to actual use requirements.
The scope of protection of the above-described embodiments employed in the present application is not limited to the above-described embodiments, and various changes made by those skilled in the art without departing from the spirit of the present application are still within the scope of protection of the present invention.
Claims (7)
1. The utility model provides a chemical fiber non-woven fabrics waterproof layer coating device which characterized in that: the chemical fiber drying machine comprises a pair of conveying rollers (1), wherein chemical fiber non-woven fabrics (8) are arranged on the conveying rollers (1), a glue coating chamber (2) is arranged on the upper side of the chemical fiber non-woven fabrics (8), the glue coating chamber (2) is attached to the upper end of the chemical fiber non-woven fabrics (8), a coating plate (3) is fixedly connected to the upper inner wall of the glue coating chamber (2), the coating plate (3) divides the glue coating chamber (2) into two parts, namely a coating room (4) and a negative pressure drying room (5) according to the movement direction of the chemical fiber non-woven fabrics (8), a feeding device (6) is fixedly connected in the coating room (4), a negative pressure ventilation pipe (7) is fixedly connected to the upper end of the negative pressure drying room (5), and the negative pressure ventilation pipe (7) is communicated with the negative pressure drying room (5);
the feeding device comprises a storage tank (601) and a transition tank (602) which are matched with each other, a connecting pipe (603) is fixedly connected between the storage tank (601) and the glue coating chamber (2) and fixedly connected with the connecting pipe (603), the storage tank (601) is communicated with the storage tank (601) and the transition tank (602), a thermal insulation pipe (10) which is matched with the connecting pipe (603) is fixedly connected with the inner wall of the storage tank (601), a plurality of feeding holes (11) are cut at one end, which is close to the connecting pipe (603), of the thermal insulation pipe (10), a feeding rod (12) is inserted in the thermal insulation pipe (10), the feeding rod (12) comprises a constant-temperature heating head (1201), the lower end of the constant-temperature heating head (1201) is fixedly connected with a thermal insulation board (1202), the lower end of the thermal insulation board (1202) is fixedly connected with a connecting column (1204), a feeding port is formed in the upper end of the storage tank (601), a sealing cap (604) which is matched with the thermal insulation pipe, a plurality of feeding ports (605) are connected with self-screw threads, and the feeding port (1203) is placed in the lower end of the thermal insulation pipe (602).
2. The chemical fiber non-woven fabric waterproof layer coating device according to claim 1, wherein: each structure of the feeding device (6) is made of heat insulation materials.
3. The chemical fiber non-woven fabric waterproof layer coating device according to claim 1, wherein: the anti-blocking fan (15) is rotationally connected to the rotary groove (1205), the anti-blocking fan (15) comprises a rotary tube (1501), and a plurality of anti-blocking fan blades (1502) are fixedly connected to the side wall of the rotary tube (1501).
4. A chemical fiber nonwoven fabric waterproof layer coating apparatus according to claim 3, characterized in that: the anti-blocking fan blade (1502) is internally embedded with a storage bag (1504), and the storage bag (1504) is filled with phase change materials.
5. The chemical fiber non-woven fabric waterproof layer coating device according to claim 4, wherein: the outside of storage bag (1504) is wrapped with electric heating net (1505), and electric heating net (1505) inlays in storage bag (1504) surface.
6. A chemical fiber nonwoven fabric waterproof layer coating apparatus according to claim 3, characterized in that: tooth-shaped grooves (1503) are cut on the surface of the anti-blocking fan blade (1502), and a plurality of tooth-shaped grooves (1503) are parallel to each other.
7. A chemical fiber nonwoven fabric waterproof layer coating apparatus according to claim 3, characterized in that: the anti-blocking fan blade (1502) is coated with a PU-repellent coating, and the PU-repellent coating is smooth in surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311435100.2A CN117160805B (en) | 2023-11-01 | 2023-11-01 | Chemical fiber non-woven fabric waterproof layer coating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311435100.2A CN117160805B (en) | 2023-11-01 | 2023-11-01 | Chemical fiber non-woven fabric waterproof layer coating device |
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| Publication Number | Publication Date |
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| CN117160805A CN117160805A (en) | 2023-12-05 |
| CN117160805B true CN117160805B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311435100.2A Active CN117160805B (en) | 2023-11-01 | 2023-11-01 | Chemical fiber non-woven fabric waterproof layer coating device |
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| CN217909981U (en) * | 2022-08-01 | 2022-11-29 | 广州晟巨涂料有限公司 | Heating device for anticorrosive paint production |
| CN218466011U (en) * | 2022-07-29 | 2023-02-10 | 江苏德赛化纤有限公司 | Novel hollow fiber spinning machine |
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|---|---|---|---|---|
| JP2016096037A (en) * | 2014-11-14 | 2016-05-26 | 株式会社ヒットデバイス | Heating head, heater using the same, and heating method |
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| CN211802100U (en) * | 2020-04-01 | 2020-10-30 | 永州职业技术学院 | Auto-parts rubber coating volume controlling means |
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| Publication number | Publication date |
|---|---|
| CN117160805A (en) | 2023-12-05 |
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