CN216539815U - PVC calendering film belt cleaning device of environmental protection and water conservation - Google Patents
PVC calendering film belt cleaning device of environmental protection and water conservation Download PDFInfo
- Publication number
- CN216539815U CN216539815U CN202123161195.2U CN202123161195U CN216539815U CN 216539815 U CN216539815 U CN 216539815U CN 202123161195 U CN202123161195 U CN 202123161195U CN 216539815 U CN216539815 U CN 216539815U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 238000003490 calendering Methods 0.000 title claims abstract description 49
- 238000004140 cleaning Methods 0.000 title claims abstract description 42
- 230000007613 environmental effect Effects 0.000 title claims description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 238000005201 scrubbing Methods 0.000 claims abstract description 9
- 238000004062 sedimentation Methods 0.000 claims description 16
- 238000004804 winding Methods 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 39
- 239000004800 polyvinyl chloride Substances 0.000 description 39
- 238000000034 method Methods 0.000 description 6
- 230000001680 brushing effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of PVC calendered films, in particular to an environment-friendly water-saving PVC calendered film cleaning device, which comprises a main box body, wherein one side of the outer wall of the main box body is provided with a rolling component, a vibration component, a wiping component and a scrubbing component are arranged in the main box body, the scrubbing component comprises a water pump and two pipe joints, the two pipe joints are rotationally connected to the main box body, the water pump is fixedly arranged on the main box body, the outer wall of each pipe joint is fixedly provided with a brush roll, a water cavity is arranged in the brush roll, and the surface of the brush roll is provided with a water outlet hole communicated with the water cavity. Increasing the friction force during cleaning.
Description
Technical Field
The utility model relates to the technical field of PVC calendered films, in particular to an environment-friendly water-saving PVC calendered film cleaning device.
Background
The rolled film is made through rolling process, and the rolling process is to pass heated polyvinyl chloride plastic through the gap between one or several pairs of horizontal rollers rotating oppositely to make the material bear the extruding and extending action and to form thin product with certain thickness, width and smooth surface. Its advantages are high output and quality. But the process equipment is complex and the investment is large.
In the prior art, the following problems exist:
(1) in the prior art, the PVC calendered film is poor in cleaning force in the cleaning process, so that the PVC calendered film needs to be cleaned for the second time after being cleaned, and the working efficiency is delayed;
(2) PVC calendering film among the prior art is after wasing, and quality of water can be more and more poor, leads to the washing dynamics poor to influenced abluent effect, so have certain limitation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an environment-friendly water-saving PVC calendered film cleaning device to solve the problems in the background technology.
The technical scheme of the utility model is as follows: an environment-friendly water-saving PVC calendered film cleaning device comprises a main box body, wherein a rolling component is installed on one side of the outer wall of the main box body, a vibration component, a wiping component and a scrubbing component are arranged inside the main box body, the scrubbing component comprises a water pump and two pipe joints, the two pipe joints are rotatably connected to the main box body, the water pump is fixedly installed on the main box body, a brush roller is fixedly installed on the outer wall of each pipe joint, a water cavity is arranged inside the brush roller, a water outlet hole communicated with the water cavity is formed in the surface of the brush roller, a water pipe is rotatably installed at one end of each pipe joint, one end of the water pipe is fixedly installed at the water outlet end of the water pump, a water pumping pipe is fixedly installed at the water inlet end of the water pump, a filter element is arranged inside one end of each water pumping pipe, a third gear and a fourth gear are fixedly installed at one end of the two pipe joints respectively, and the third gear and the fourth gear are mutually meshed, a motor I is fixedly mounted on one side of the gear III, a water tank and a sedimentation tank are arranged in the main box body, and a water inlet pipe communicated with the water tank is arranged in the sedimentation tank.
Preferably, the vibrations subassembly includes mounting bracket and two solid fixed cylinder, bottom fixed mounting has the spring in the solid fixed cylinder, and the equal fixedly connected with U type frame one in spring top, U type frame one and solid fixed cylinder inner wall sliding connection, U type frame one rotates and is connected with the roller bearing, and roller bearing outer wall fixedly connected with bullet wheel, mounting bracket bottom fixed mounting has electric telescopic handle, and electric telescopic handle's extension rod tip fixed mounting has U type frame two, two internal rotations in U type frame are connected with the pulling pulley, one side fixedly connected with motor two of pulling pulley.
Preferably, the wiping component comprises two fixed plates fixedly mounted on the main box body, an extrusion plate is fixedly mounted on the inner side of each fixed plate, a rotating shaft is rotatably mounted on each fixed plate, a sponge is fixedly arranged on each rotating shaft, and a water outlet is formed in the bottom end of each fixed plate.
Preferably, the winding assembly comprises a fixing frame fixed on one side of the main box body, a supporting column is fixedly mounted on the outer wall of the upper end of the fixing frame, a winding wheel shaft is connected to the supporting column in a rolling mode, and a winding wheel is fixedly mounted on the winding wheel shaft.
Preferably, one end of each of the two rotating shafts is fixedly provided with a first gear and a second gear which are meshed with each other, the middle end of one side of the second gear is fixedly provided with a fixed shaft, and a conveyor belt is in tensioning sleeve joint between the fixed shaft and the reel shaft.
Preferably, a plurality of baffles are fixedly installed inside the sedimentation tank, and the water inlet pipe penetrates through two baffles.
Preferably, an electric fan is fixedly installed on the inner wall of the main box body.
Preferably, three guide wheels are arranged at one end, close to the brushing assembly, in the main box body, and the three guide wheels are integrally distributed in an L-shaped path.
The utility model provides an environment-friendly and water-saving PVC calendered film cleaning device through improvement, and compared with the prior art, the cleaning device has the following improvements and advantages:
one is as follows: the utility model utilizes the arranged electric telescopic rod to drive the pull wheel to move up and down, the moving PVC calendered film is driven to move up and down through the up-and-down movement of the pull wheel, the PVC calendered film generates tension in the up-and-down movement, so that the elastic wheel utilizes the spring to shake up and down, thereby increasing the cleaning force; meanwhile, the pulling wheel and the PVC calendered film are driven to move relatively by the rotation of the motor II, so that the friction force during cleaning is increased; a third gear and a fourth gear which are meshed with each other are driven by a first motor to move relatively;
the second step is as follows: the pipe joint is driven to rotate through the rotation of the gear, and the brush roll is driven to rotate under the rotation of the pipe joint, so that the brush roll and the PVC calendered film in cleaning move relatively, and the friction force in cleaning is increased; meanwhile, a water pump is arranged to pump the filtered water source into the water cavity, the brush roller rotates to enable water in the water cavity to flow out through the water outlet hole, the movement of the brushing assembly is assisted, and the cleaning force of the PVC calendered film is increased again;
and thirdly: the utility model utilizes the arranged water inlet pipe to bring water in the water tank into the bottom of the sedimentation tank, in the process of rising water flow, after the water flow is stabilized by the plurality of baffles, dirty substances are precipitated at the bottom of the sedimentation tank, meanwhile, the precipitated water is filtered again by the arranged filter element, the filtered water source is pumped into the water cavity by the arranged water pump, the water in the water cavity flows out through the water outlet hole by the rotation of the brush roller, the movement of the scrubbing component is assisted, and the cleaning force of the PVC calendered film is increased again.
Drawings
The utility model is further explained below with reference to the figures and examples:
FIG. 1 is a schematic cross-sectional structural view of the present invention;
FIG. 2 is a perspective view of the vibration assembly of the present invention;
FIG. 3 is a schematic partial perspective view of a wiping component of the present invention;
FIG. 4 is a schematic perspective view of a wiping assembly of the present invention;
FIG. 5 is a perspective view of the brush assembly of the present invention.
Description of reference numerals:
1. a main box body; 2. a wiping component; 201. a sponge; 202. a pressing plate; 203. a rotating shaft; 204. a water outlet; 205. a fixing plate; 3. an electric fan; 4. a winding wheel; 401. a conveyor belt; 402. a fixed shaft; 403. a first gear; 404. a second gear; 5. a brushing assembly; 501. a brush roll; 502. a first motor; 503. a third gear; 504. a fourth gear; 505. a water outlet hole; 506. a water pipe; 507. a pipe joint; 508. a water pump; 6. a vibration assembly; 601. an electric telescopic rod; 602. a roller; 603. a spring wheel; 604. a first U-shaped frame; 605. a spring; 606. a fixed cylinder; 607. a mounting frame; 608. a second motor; 609. pulling a wheel; 610. a U-shaped frame II; 7. a reel shaft; 8. a support pillar; 9. a sedimentation tank; 10. a water inlet pipe; 11. a baffle plate; 12. a filter element; 13. a water pumping pipe; 14. a fixed mount; 15. a water tank.
Detailed Description
The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, 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 creative effort, shall fall within the protection scope of the present invention.
The utility model provides an environment-friendly and water-saving PVC calendered film cleaning device through improvement, and the technical scheme of the utility model is as follows:
as shown in fig. 1-5, an environment-friendly water-saving PVC calendered film cleaning device comprises a main box body 1, a rolling component is installed on one side of the outer wall of the main box body 1, a vibration component 6, a wiping component 2 and a scrubbing component 5 are arranged inside the main box body 1, the scrubbing component 5 comprises a water pump 508 and two pipe connectors 507, the two pipe connectors 507 are rotatably connected to the main box body 1, the water pump 508 is fixedly installed on the main box body 1, a brush roller 501 is fixedly installed on the outer wall of the pipe connectors 507, a water cavity is arranged inside the brush roller 501, a water outlet 505 communicated with the water cavity is formed in the surface of the brush roller 501, a water pipe 506 is rotatably installed at one end of each pipe connector 507, one end of the water pipe 506 is fixedly installed at the water outlet end of the water pump 508, a water pumping pipe 13 is fixedly installed at the water inlet end of the water pump 508, a filter element 12 is arranged inside one end of the water pumping pipe 13, three gears 503 and four gears 504 are respectively fixedly installed at one end of the two pipe connectors 507, a third gear 503 and a fourth gear 504 are meshed with each other, a first motor 502 is fixedly mounted on one side of the third gear 503, a water tank 15 and a sedimentation tank 9 are arranged in the main tank body 1, and the sedimentation tank 9 is provided with a water inlet pipe 10 communicated with the water tank 15; a first motor 502 is used for driving a third gear 503 and a fourth gear 504 which are meshed with each other to move relatively, a pipe joint 507 is driven to rotate through rotation of the gears, and meanwhile, a brush roller 501 is driven to rotate under rotation of the pipe joint 507, so that the brush roller 501 and a PVC calendering film in cleaning move relatively, and friction force in cleaning is increased; meanwhile, a water source after filtration is pumped into the water cavity by the aid of the arranged water pump 508, water in the water cavity flows out through the water outlet hole 505 by means of rotation of the brush roll 501, the movement of the brushing assembly 5 is assisted, and the cleaning effect of the PVC calendered film is increased again.
Further, the vibration assembly 6 comprises a mounting frame 607 and two fixed cylinders 606, a spring 605 is fixedly mounted at the bottom in each fixed cylinder 606, the top ends of the springs 605 are fixedly connected with a first U-shaped frame 604, the first U-shaped frame 604 is slidably connected with the inner wall of each fixed cylinder 606, the first U-shaped frame 604 is rotatably connected with a roller 602, the outer wall of the roller 602 is fixedly connected with an elastic wheel 603, the bottom end of the mounting frame 607 is fixedly mounted with an electric telescopic rod 601, the end part of an extension rod of the electric telescopic rod 601 is fixedly mounted with a second U-shaped frame 610, the second U-shaped frame 610 is rotatably connected with a pull wheel 609, and one side of the pull wheel 609 is fixedly connected with a second motor 608; the arranged electric telescopic rod 601 is used for driving the pull wheel 609 to move up and down, the moving PVC calendered film is driven to move up and down through the up-and-down movement of the pull wheel 609, the PVC calendered film generates a pulling force in the up-and-down movement, so that the elastic wheel 603 shakes up and down through the spring 605, and the cleaning force is increased; meanwhile, the rotation of the second motor 608 drives the pulling wheel 609 to move relative to the PVC calendered film, so that the friction force during cleaning is increased.
Further, the wiping component 2 comprises two fixing plates 205 fixedly mounted on the main box body 1, the inner sides of the fixing plates 205 are fixedly mounted with the extrusion plate 202, the fixing plates 205 are rotatably mounted with the rotating shaft 203, the rotating shaft 203 is fixedly provided with the sponge 201, and the bottom ends of the fixing plates 205 are provided with water outlets 204; the arranged sponge 201 is used for wiping the brushed PVC calendered film, so that the subsequent processes are reduced; the squeezing plate 202 is arranged to squeeze the moisture in the sponge 201, so that the situation that the PVC calendered film cannot be wiped when the moisture in the sponge 201 reaches saturation is avoided.
Further, the winding assembly comprises a fixing frame 14 fixed on one side of the main box body 1, a supporting column 8 is fixedly installed on the outer wall of the upper end of the fixing frame 14, a reel shaft 7 is connected to the supporting column 8 in a rolling mode, and a reel 4 is fixedly installed on the reel shaft 7; by utilizing the arranged rolling component, the PVC calendered film moves under the rolling of the rolling wheel 4.
Further, a first gear 403 and a second gear 404 are fixedly mounted at one end of each of the two rotating shafts 203, the first gear 403 and the second gear 404 are meshed with each other, a fixed shaft 402 is fixedly arranged at the middle end of one side of the second gear 404, and a conveyor belt 401 is tightly sleeved between the fixed shaft 402 and the reel shaft 7; the fixed shaft 402 connected with the conveyor belt 401 is pulled to rotate by the rotation of the arranged winding wheel 4, and the three gears 503 and the four gears 504 which are combined are driven to move relatively by the rotation of the fixed shaft 402, so that the two connected sponges 201 move relatively.
Furthermore, a plurality of baffles 11 are fixedly arranged inside the sedimentation tank 9, and a water inlet pipe 10 penetrates through two baffles 11; utilize the inlet tube 10 that sets up, with the hosepipe in the water tank 15 go into sedimentation tank 9 bottom, in the in-process that rivers rise, after a plurality of baffles 11 stationary flows, deposit dirty material in sedimentation tank 9 bottom, utilize the filter core 12 that sets up simultaneously, filter clear and limpid rivers once more for during the cycling use water, the water source is more clear and clean.
Further, an electric fan 3 is fixedly arranged on the inner wall of the main box body 1; the electric fan 3 is arranged, so that the wiped PVC calendered film is air-dried again, and the drying effect of the PVC calendered film is ensured.
Furthermore, three guide wheels are arranged at one end of the interior of the main box body 1, which is close to the scrubbing component 5, and the three guide wheels are integrally distributed in an L-shaped path; the pulling path of the PVC calendered film is changed orderly by the arranged guide wheel.
The working principle is as follows: when the cleaning device is used, a worker can move the PVC calendered film under the rolling of the rolling wheel 4 by using the arranged rolling component, the arranged electric telescopic rod 601 is used for driving the pulling wheel 609 to move up and down, the moving PVC calendered film is driven to move up and down by the up-and-down movement of the pulling wheel 609, the PVC calendered film generates pulling force in the up-and-down movement, the elastic wheel 603 can shake up and down by using the spring 605, and therefore the cleaning force is increased; meanwhile, the rotation of a second motor 608 drives the pull wheel 609 to move relative to the PVC calendered film, so that the friction force during cleaning is increased; the water in the water tank 15 is brought into the bottom of the sedimentation tank 9 by the aid of the arranged water inlet pipe 10, in the process of rising of water flow, dirty substances are settled at the bottom of the sedimentation tank 9 after the water flow is stabilized by the baffles 11, and meanwhile, clear water flow is filtered again by the aid of the arranged filter element 12, so that when the water is recycled, the water source is clear and clean; a first motor 502 is used for driving a third gear 503 and a fourth gear 504 which are meshed with each other to move relatively, a pipe joint 507 is driven to rotate through rotation of the gears, and meanwhile, a brush roller 501 is driven to rotate under rotation of the pipe joint 507, so that the brush roller 501 and a PVC calendering film in cleaning move relatively, and friction force in cleaning is increased; meanwhile, a filtered water source is pumped into the water cavity by using the arranged water pump 508, water in the water cavity flows out through the water outlet hole 505 by rotating the brush roller 501, the movement of the brushing assembly 5 is assisted, and the cleaning force of the PVC calendered film is increased again; the arranged winding wheel 4 rotates to pull the fixed shaft 402 connected with the conveyor belt 401 to rotate, the third gear 503 and the fourth gear 504 which are combined are driven to move relatively by the rotation of the fixed shaft 402, so that the two connected sponges 201 move relatively, and meanwhile, the sponges 201 are used for wiping the brushed PVC calendered film, so that the drying efficiency is improved; the arranged extrusion plate 202 is used for extruding the moisture in the sponge 201, so that the situation that the PVC calendered film cannot be wiped when the moisture in the sponge 201 reaches saturation is avoided; and the electric fan 3 is used for drying the wiped PVC calendered film again, so that the drying effect of the PVC calendered film is ensured.
The previous description is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a PVC calendering film belt cleaning device of environmental protection water conservation, includes the main tank body (1), the rolling subassembly, its characterized in that are installed to the outer wall one side of the main tank body (1): the cleaning device is characterized in that a vibration component (6), a cleaning component (2) and a cleaning component (5) are arranged inside the main box body (1), the cleaning component (5) comprises a water pump (508) and two pipe joints (507), the two pipe joints (507) are rotatably connected to the main box body (1), the water pump (508) is fixedly installed on the main box body (1), a brush roller (501) is fixedly installed on the outer wall of each pipe joint (507), a water cavity is arranged inside each brush roller (501), a water outlet hole (505) communicated with the water cavity is formed in the surface of each brush roller (501), a water pipe (506) is rotatably installed at one end of each pipe joint (507), one end of each water pipe (506) is fixedly installed at the water outlet end of each water pump (508), a water pumping pipe (13) is fixedly installed at the water inlet end of each water pump (508), and a filter element (12) is arranged inside one end of each water pumping pipe (13), two the one end of coupling (507) is fixed gear three (503) and gear four (504) respectively, and gear three (503) and gear four (504) intermeshing, and affiliated gear three (503) one side fixed mounting has motor one (502), water tank (15) and sedimentation tank (9) have been seted up to main tank (1) inside, and sedimentation tank (9) are provided with inlet tube (10) that are linked together with water tank (15).
2. The PVC calendering film cleaning device with environmental protection and water saving functions as claimed in claim 1, is characterized in that: vibrations subassembly (6) are including mounting bracket (607) and two solid fixed cylinder (606), bottom fixed mounting has spring (605) in solid fixed cylinder (606), and the equal fixedly connected with U type frame (604) in spring (605) top, U type frame (604) and solid fixed cylinder (606) inner wall sliding connection, U type frame (604) are rotated and are connected with roller bearing (602), and roller bearing (602) outer wall fixedly connected with bullet wheel (603), mounting bracket (607) bottom fixed mounting has electric telescopic handle (601), and the extension rod end fixed mounting of electric telescopic handle (601) has U type frame two (610), U type frame two (610) internal rotation is connected with pulley (609), one side fixedly connected with motor two (608) of pulley (609).
3. The PVC calendering film cleaning device with environmental protection and water saving as claimed in claim 2, is characterized in that: wiping subassembly (2) and including two fixed plate (205) of fixed mounting on main tank body (1), fixed plate (205) inboard fixed mounting has stripper plate (202), rotate on fixed plate (205) and install rotation axis (203), and fixed being equipped with sponge (201) on rotation axis (203), delivery port (204) have been seted up to fixed plate (205) bottom.
4. The PVC calendering film cleaning device with environmental protection and water saving functions as claimed in claim 3, wherein: the winding assembly comprises a fixing frame (14) fixed on one side of the main box body (1), a supporting column (8) is fixedly mounted on the outer wall of the upper end of the fixing frame (14), a winding wheel shaft (7) is connected to the supporting column (8) in a rolling mode, and a winding wheel (4) is fixedly mounted on the winding wheel shaft (7).
5. The PVC calendering film cleaning device with environmental protection and water saving functions as claimed in claim 4, wherein: one end of each of the two rotating shafts (203) is fixedly provided with a first gear (403) and a second gear (404), the first gear (403) is meshed with the second gear (404), a fixing shaft (402) is fixedly arranged at the middle end of one side of the second gear (404), and a conveyor belt (401) is sleeved between the fixing shaft (402) and the reel shaft (7) in a tensioning mode.
6. The PVC calendering film cleaning device with environmental protection and water saving functions as claimed in claim 1, is characterized in that: a plurality of baffles (11) are fixedly arranged in the sedimentation tank (9), and the water inlet pipe (10) penetrates through the two baffles (11).
7. The PVC calendering film cleaning device with environmental protection and water saving functions as claimed in claim 1, is characterized in that: an electric fan (3) is fixedly arranged on the inner wall of the main box body (1).
8. The PVC calendering film cleaning device with environmental protection and water saving functions as claimed in claim 1, is characterized in that: and three guide wheels are arranged at one end, close to the scrubbing component (5), in the main box body (1), and are integrally distributed in an L-shaped path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123161195.2U CN216539815U (en) | 2021-12-15 | 2021-12-15 | PVC calendering film belt cleaning device of environmental protection and water conservation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123161195.2U CN216539815U (en) | 2021-12-15 | 2021-12-15 | PVC calendering film belt cleaning device of environmental protection and water conservation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216539815U true CN216539815U (en) | 2022-05-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123161195.2U Expired - Fee Related CN216539815U (en) | 2021-12-15 | 2021-12-15 | PVC calendering film belt cleaning device of environmental protection and water conservation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216539815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118082080A (en) * | 2024-02-01 | 2024-05-28 | 无锡奥思新材料有限公司 | PVC film calendering auxiliary blowing device |
-
2021
- 2021-12-15 CN CN202123161195.2U patent/CN216539815U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118082080A (en) * | 2024-02-01 | 2024-05-28 | 无锡奥思新材料有限公司 | PVC film calendering auxiliary blowing device |
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