CN221136850U - TPU car cover film extrusion production line - Google Patents
TPU car cover film extrusion production line Download PDFInfo
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- CN221136850U CN221136850U CN202320459974.0U CN202320459974U CN221136850U CN 221136850 U CN221136850 U CN 221136850U CN 202320459974 U CN202320459974 U CN 202320459974U CN 221136850 U CN221136850 U CN 221136850U
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- 238000001125 extrusion Methods 0.000 title claims abstract description 33
- 239000013039 cover film Substances 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 56
- 238000005520 cutting process Methods 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 34
- 239000002994 raw material Substances 0.000 claims abstract description 26
- 239000010408 film Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 12
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000004809 Teflon Substances 0.000 claims description 9
- 229920006362 Teflon® Polymers 0.000 claims description 9
- 238000010030 laminating Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract 1
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 26
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 26
- 239000000047 product Substances 0.000 description 6
- 238000005096 rolling process Methods 0.000 description 6
- 239000011265 semifinished product Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000003490 calendering Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009501 film coating Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004970 Chain extender Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010096 film blowing Methods 0.000 description 1
- 239000007888 film coating Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a TPU car cover film extrusion production line, and relates to the technical field of automatic production lines. The utility model comprises a machine barrel screw, an extrusion die, a three-roller cooling device, a traction cutting device and a traction winding device, wherein the input end of the machine barrel screw is matched with a raw material feeder, and the extrusion die is connected with the output end of the machine barrel screw; the three-roller cooling device comprises a mounting frame, wherein a main rotating roller is fixedly mounted on the mounting frame, and two groups of auxiliary rotating rollers are movably arranged on the mounting frame. According to the utility model, the three-roller cooling device with the main rotating roller and the auxiliary rotating roller with the position adjusted by the first hydraulic telescopic rod is arranged, the cooling device is arranged to further cool the car cover film, the traction cutting device is arranged to cut the waste edges of the semi-finished car cover film, and the traction winding device is arranged to carry out traction winding on the car cover film, so that the energy consumption is saved, the manual use is reduced, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of automatic production lines, and particularly relates to a TPU car cover film extrusion production line.
Background
The TPU film is a film prepared by special processes of calendaring, tape casting, film blowing, coating and the like on the basis of TPU particle raw materials. The thickness of 0.01 to 2mm, because of good elasticity, good physical properties and good mechanical strength, the plastic material is widely used in the processing modes of injection, extrusion, calendaring, dissolving into solution resin and the like, and the plastic material is a plastic material frequently used by plastic processing industry, and the manufactured product covers the range of industrial application and civil necessities.
The TPU thermoplastic polyurethane elastomer is prepared by the reaction of polyol, isocyanate and chain extender. The TPU material has excellent mechanical properties such as high strength, good rebound resilience, high transparency, wear resistance, low temperature resistance, chemical resistance and the like, and is widely used for transmission sealing parts, interior decorations and exterior decorations in automobiles and rail transit for years. TPU car cover films are a novel market place, including exterior protection for automotive trim, rail transit, and flyers, among others.
TPU not only has excellent high tension, toughness and ageing resistance, but also is a mature environment-friendly material. TPU's have been widely used: shoe materials, ready-made clothes, inflatable toys, sports equipment on water and under water, medical equipment, fitness equipment, automobile protective films and the like.
The existing production line for producing TPU car cover films is large in energy consumption and low in production speed, and after production is completed, the production line needs manual winding, is more in manual use and is unfavorable for improving the yield.
Disclosure of utility model
The utility model aims to provide a TPU car cover film extrusion production line, which improves the production efficiency by designing an automatic TPU car cover film production line, is provided with a three-roller cooling device provided with a main rotating roller and an auxiliary rotating roller with the position adjusted by a first hydraulic telescopic rod for primarily cooling and laminating a processed and formed material, is provided with a cooling device for finishing further cooling of the car cover film, is provided with a traction cutting device for traction and slitter edge cutting of a semi-finished car cover film along a line body, and is provided with a traction winding device for traction winding of the processed car cover film, so that the problems of high energy consumption, low production speed and manual winding after production of the existing production line for producing the TPU car cover film are solved.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
The utility model relates to a TPU car coating film extrusion production line, which comprises a barrel screw rod used for plasticizing raw materials, wherein the input end of the barrel screw rod is matched with a raw material feeding machine used for feeding materials into the barrel screw rod; the extrusion die is used for processing, forming and extruding the plasticizing raw material and is connected with the output end of the machine barrel screw; the three-roller cooling device is used for primarily cooling and laminating materials processed and molded by the extrusion die and comprises a mounting rack, wherein a main rotating roller is fixedly mounted on the mounting rack, and two groups of auxiliary rotating rollers are movably arranged on the mounting rack; the cooling device is used for further cooling the semi-finished product car coating film after the film is cooled; the traction cutting device is used for dragging the semi-finished product car coating film along the line body and cutting the slitter edges; and the traction winding device is used for carrying out traction winding on the processed car cover film.
As a preferential technical scheme of the utility model, the output end of the cylinder screw is provided with a screen changer for filtering raw materials and a metering pump for stabilizing pressure.
As a preferential technical scheme of the utility model, the ends of the same sides of the main rotating roller and the two groups of auxiliary rotating rollers are provided with a first driving motor for driving the main rotating roller and the two groups of auxiliary rotating rollers to rotate.
As a preferential technical scheme of the utility model, two ends of the two sets of auxiliary rotating rollers are provided with adjusting brackets, the bottoms of the adjusting brackets are provided with sliding grooves, the tops of the mounting frames are symmetrically and fixedly provided with two sets of limit sliding blocks, and the limit sliding blocks are in sliding connection with the sliding grooves.
As a preferential technical scheme of the utility model, four corners of the top of the installation frame are fixedly provided with the fixed frames, four groups of the fixed frames respectively correspond to four groups of adjusting brackets, each group of the fixed frames is fixedly provided with a first hydraulic telescopic rod, and the piston end part of each first hydraulic telescopic rod is fixedly connected with one side of the corresponding adjusting bracket.
As a preferential technical scheme of the utility model, the input end of the cooling device is arranged at the output end of the three-roller cooling device, the cooling device comprises a cooling rack and four groups of teflon rollers, and the four groups of teflon rollers are arranged on the cooling rack in an array manner.
As a preferential technical scheme of the utility model, the input end of the traction cutting device is arranged at the output end of the cooling device, the traction cutting device comprises a first traction machine and two groups of cutting mechanisms, and the two groups of cutting mechanisms are arranged at the output end of the first traction machine in an up-down symmetrical way.
As a preferential technical scheme of the utility model, the cutting mechanism comprises two movable mounting frames, two second driving motors and two cutting discs, wherein the second driving motors are fixedly arranged on the corresponding movable mounting frames, the cutting discs are fixedly connected with rotating shafts of the corresponding second driving motors, and two groups of linear sliding tables for adjusting the width between the two movable mounting frames are vertically and symmetrically and fixedly arranged at the output end of the first tractor.
As a preferential technical scheme of the utility model, the traction winding device comprises a second traction machine and a winding machine, wherein the input end of the second traction machine is arranged at the output end of the traction cutting device, and the winding machine is arranged at the output end of the second traction machine.
As a preferential technical scheme of the utility model, the second tractor comprises a traction frame, a tightening frame is rotatably arranged between two inner side walls of the traction frame, a second hydraulic telescopic rod is rotatably arranged on two inner side walls of the traction frame, a tightening roller is rotatably arranged at one end of the tightening frame, which is close to the winding machine, and the other end of the tightening frame is fixedly connected with the end part of a piston of the second hydraulic telescopic rod.
The utility model has the following beneficial effects:
According to the utility model, the three-roller cooling device with the main rotating roller and the auxiliary rotating roller with the position adjusted by the first hydraulic telescopic rod is used for primarily cooling and laminating the processed and formed material, meanwhile, the cooling device is arranged for finishing further cooling of the car cover film, the traction cutting device is also arranged for traction of the semi-finished car cover film along the line body and cutting of the slitter edges, and finally, the traction winding device is arranged for traction and winding of the processed car cover film, so that the energy consumption is saved, the product can be automatically wound and collected after forming, the manual use is reduced, and the production efficiency is improved.
Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of the TPU car film extrusion line of the invention;
FIG. 2 is a schematic diagram of a three-roll cooling device;
FIG. 3 is a schematic diagram of an adjusting frame structure in a three-roll cooling device;
FIG. 4 is a schematic diagram of a cooling device;
FIG. 5 is a schematic view of a traction cutting device;
fig. 6 is a schematic drawing of the traction winding device.
In the drawings, the list of components represented by the various numbers is as follows:
1-machine barrel screw, 2-raw material feeder, 3-extrusion die, 4-three-roller cooling device, 401-installation frame, 402-main rotating roller, 403-auxiliary rotating roller, 404-first driving motor, 405-adjustment frame, 406-chute, 407-limit slide block, 408-fixed frame, 409-first hydraulic telescopic link, 5-cooling device, 501-cooling frame, 502-teflon roller, 6-traction cutting device, 601-first tractor, 602-movable mounting frame, 603-second driving motor, 604-cutting dish. 605-linear sliding table, 7-traction winding device, 701-second traction machine, 702-winding machine, 703-traction frame, 704-tightening frame, 705-second hydraulic telescopic rod, 706-tightening roller, 8-screen changer and 9-metering pump.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "open," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like indicate orientation or positional relationships, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1, the present embodiment provides a TPU coating film extrusion line, which sequentially includes a raw material feeder 2, a barrel screw 1, a net changer 8, a metering pump 9, an extrusion die 3, a three-roller cooling device 4, a cooling device 5, a traction cutting device 6 and a traction winding device 7 along the flow direction of the production line.
The barrel screw 1 is used for plasticizing raw materials, the raw materials in the embodiment are prepared from TPU (thermoplastic polyurethane) particle raw materials, the input end of the barrel screw 1 is matched with a raw material feeder 2 for conveying the TPU particle raw materials into the barrel screw 1, and the output end of the barrel screw 1 is provided with a screen changer 8 for filtering raw materials and a metering pump 9 for stabilizing pressure. The extrusion die 3 is used for processing and forming the plasticizing raw material and extruding, and the extrusion die 3 is connected with the output end of the machine barrel screw 1.
Referring to fig. 2 and 3, the three-roller cooling device 4 is used for primarily cooling and coating the material extruded by the extrusion die 3, the three-roller cooling device 4 includes a mounting frame 401, a main rotating roller 402 is fixedly mounted on the mounting frame 401, and two sets of auxiliary rotating rollers 403 are movably mounted on the mounting frame 401; the ends of the same sides of the main rotating roller 402 and the two sets of auxiliary rotating rollers 403 are provided with a first driving motor 404 for driving the main rotating roller 402 and the two sets of auxiliary rotating rollers 403 to rotate; two ends of the two groups of auxiliary rotating rollers 403 are provided with adjusting brackets 405, the bottoms of the adjusting brackets 405 are provided with sliding grooves 406, two groups of limiting sliding blocks 407 are symmetrically and fixedly arranged at the top of the mounting frame 401, and the limiting sliding blocks 407 are in sliding connection with the sliding grooves 406; four corners at the top of the installation frame 401 are fixedly provided with fixing frames 408, four groups of fixing frames 408 respectively correspond to four groups of adjusting brackets 405, each group of fixing frames 408 is fixedly provided with a first hydraulic telescopic rod 409, the piston end part of each first hydraulic telescopic rod 409 is fixedly connected with one side of the corresponding adjusting bracket 405, and the distances between the main rotating roller 402 and the two groups of auxiliary rotating rollers 403 can be adjusted by adjusting the telescopic lengths of the hydraulic telescopic rods 409 corresponding to the adjusting frames 405 at the two ends of the rotating rollers 403 so as to achieve better cooling film covering effect.
Referring to fig. 4, a cooling device 5 is used for further cooling a semi-finished product film after film coating, an input end of the cooling device 5 is arranged at an output end of a three-roller cooling device 4, the cooling device 5 comprises a cooling frame 501 and four groups of teflon rollers 502, the four groups of teflon rollers 502 are arranged on the cooling frame 501 in an array manner, and the semi-finished product film is fully cooled and formed in a transportation process of the four groups of teflon rollers 502.
Referring to fig. 5, a traction cutting device 6 is used for drawing a semi-finished car coating film along a line body and cutting a slitter edge, an input end of the traction cutting device 6 is arranged at an output end of a cooling device 5, the traction cutting device (6) comprises a first tractor 601 and two groups of cutting mechanisms, the two groups of cutting mechanisms are vertically symmetrically arranged at the output end of the first tractor 601, and the semi-finished car coating film is finished into a finished product through the slitter edge cutting by the cutting mechanisms under the traction of the first tractor 601. The cutting mechanism comprises two movable mounting frames 602, two second driving motors 603 and two cutting plates 604, wherein the second driving motors 603 are fixedly arranged on the corresponding movable mounting frames 602, the cutting plates 604 are fixedly connected with rotating shafts of the corresponding second driving motors 603, two groups of linear sliding tables 605 for adjusting the width between the two movable mounting frames 602 are symmetrically and fixedly arranged on the output ends of the first tractor 601, the distance between the two groups of cutting plates 604 is adjusted through the linear sliding tables 605, and the trimming size of the semi-finished product car cover film pulled by the first tractor 601 can be flexibly selected.
Referring to fig. 6, a traction winding device 7 is used for traction and winding of a processed film, the traction winding device 7 includes a second traction machine 701 and a winding machine 702, an input end of the second traction machine 701 is disposed at an output end of the traction cutting device 6, the winding machine 702 is disposed at an output end of the second traction machine 701, and the winding of the processed TPU film can be completed by the winding machine 702 after the processed film is drawn by the second traction machine 701. The second tractor 701 includes traction frame 703, rotate and install and tighten up frame 704 between traction frame 703's the two inside walls, the two inside walls of traction frame 703 all rotate and install second hydraulic telescoping rod 705, tighten up frame 704 is close to the one end rotation of rolling machine 702 and install and tighten up roller 706, tighten up the other end and the piston tip fixed connection of second hydraulic telescoping rod 705 of frame 704, in the in-process of accomplishing the rolling with the TPU car coating film after the processing to rolling machine 702 through second tractor 701 traction, can change the position cooperation tightening up roller 706 and rolling machine 702 of tightening up frame 704 through the flexible length that changes second hydraulic telescoping rod 705, can prevent to lead to rolling effect bad because TPU car coating film is not hard up in the rolling process.
During operation, the raw material feeding machine 2 enters the barrel screw 1, the TPU granule raw material is plasticized through the barrel screw 1, the TPU granule raw material is filtered through the screen changer 8, the pressure of the metering pump 9 is stabilized, the raw material is fed into the extrusion die 3 for molding and extrusion, the raw material is primarily cooled and shaped and coated through the three-roller cooling device 4, the raw material is cooled through the Teflon roller 502 in the cooling device 5, the slitter edge is cut through the cutting disc 604 in the traction cutting device 6, the traction winding device 7 is used for carrying out traction on the TPU car coating film after the processing is completed and automatically winding and collecting products, and finally the required products are obtained.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
- TPU car cover film extrusion line, characterized by comprising:A barrel screw (1) for plasticizing raw materials, wherein the input end of the barrel screw (1) is matched with a raw material feeder (2) for feeding the raw materials into the barrel screw (1);An extrusion die (3) for processing, forming and extruding the plasticized raw material, wherein the extrusion die (3) is connected with the output end of the machine barrel screw (1);The three-roller cooling device (4) is used for primarily cooling and laminating materials processed and molded by the extrusion die (3), the three-roller cooling device (4) comprises a mounting rack (401), a main rotating roller (402) is fixedly mounted on the mounting rack (401), and two groups of auxiliary rotating rollers (403) are movably arranged on the mounting rack (401);A cooling device (5) for further cooling the semi-finished car cover film after cooling the film;A traction cutting device (6) for drawing the semi-finished car coating film along the line body and cutting the slitter edges; andAnd the traction winding device (7) is used for carrying out traction winding on the processed car coating film.
- 2. The TPU film extrusion line of claim 1, wherein: the output end of the machine barrel screw (1) is provided with a screen changer (8) for filtering raw materials and a metering pump (9) for stabilizing pressure.
- 3. The TPU film extrusion line of claim 1, wherein: the ends of the same sides of the main rotating roller (402) and the two groups of auxiliary rotating rollers (403) are provided with a first driving motor (404) for driving the main rotating roller (402) and the two groups of auxiliary rotating rollers (403) to rotate.
- 4. A TPU car cover film extrusion line as set forth in claim 3, wherein: two ends of the two groups of auxiliary rotating rollers (403) are provided with adjusting brackets (405), sliding grooves (406) are formed in the bottoms of the adjusting brackets (405), two groups of limiting sliding blocks (407) are symmetrically and fixedly arranged at the tops of the mounting frames (401), and the limiting sliding blocks (407) are in sliding connection with the sliding grooves (406).
- 5. The TPU automotive film extrusion line of claim 4, wherein: four corners at the top of installing frame (401) are fixed with fixed frame (408), and four sets of fixed frame (408) correspond four sets of adjustment support (405) respectively, every set of all fixed frame (408) are last to be fixed with first hydraulic telescoping rod (409), every the piston tip of first hydraulic telescoping rod (409) all with one side fixed connection of corresponding adjustment support (405).
- 6. The TPU film extrusion line of claim 1, wherein: the input end of the cooling device (5) is arranged at the output end of the three-roller cooling device (4), the cooling device (5) comprises a cooling rack (501) and four groups of teflon rollers (502), and the four groups of teflon rollers (502) are arranged on the cooling rack (501) in an array.
- 7. The TPU automotive film extrusion line of claim 6, wherein: the input end of the traction cutting device (6) is arranged at the output end of the cooling device (5), the traction cutting device (6) comprises a first traction machine (601) and two groups of cutting mechanisms, and the two groups of cutting mechanisms are arranged at the output end of the first traction machine (601) in an up-down symmetrical mode.
- 8. The TPU film extrusion line of claim 7, wherein: the cutting mechanism comprises two movable mounting frames (602), two second driving motors (603) and two cutting discs (604), wherein the second driving motors (603) are fixedly installed on the corresponding movable mounting frames (602), the cutting discs (604) are fixedly connected with rotating shafts corresponding to the second driving motors (603), and two groups of linear sliding tables (605) for adjusting the width between the two movable mounting frames (602) are fixedly installed at the output end of the first tractor (601) in an up-down symmetry mode.
- 9. The TPU film extrusion line of claim 8, wherein: the traction winding device (7) comprises a second traction machine (701) and a winding machine (702), wherein the input end of the second traction machine (701) is arranged at the output end of the traction cutting device (6), and the winding machine (702) is arranged at the output end of the second traction machine (701).
- 10. The TPU film extrusion line of claim 9, wherein: the second tractor (701) comprises a traction frame (703), a tightening frame (704) is rotatably arranged between two inner side walls of the traction frame (703), a second hydraulic telescopic rod (705) is rotatably arranged on two inner side walls of the traction frame (703), a tightening roller (706) is rotatably arranged at one end, close to the winding machine, of the tightening frame (704), and the other end of the tightening frame (704) is fixedly connected with the piston end part of the second hydraulic telescopic rod (705).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320459974.0U CN221136850U (en) | 2023-03-13 | 2023-03-13 | TPU car cover film extrusion production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320459974.0U CN221136850U (en) | 2023-03-13 | 2023-03-13 | TPU car cover film extrusion production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221136850U true CN221136850U (en) | 2024-06-14 |
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ID=91427091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320459974.0U Active CN221136850U (en) | 2023-03-13 | 2023-03-13 | TPU car cover film extrusion production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221136850U (en) |
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2023
- 2023-03-13 CN CN202320459974.0U patent/CN221136850U/en active Active
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