CN221212463U - Water cooling device for BOPP film production line - Google Patents
Water cooling device for BOPP film production line Download PDFInfo
- Publication number
- CN221212463U CN221212463U CN202323065261.5U CN202323065261U CN221212463U CN 221212463 U CN221212463 U CN 221212463U CN 202323065261 U CN202323065261 U CN 202323065261U CN 221212463 U CN221212463 U CN 221212463U
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- Prior art keywords
- cooling
- water
- production line
- storage tank
- bopp film
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- 238000001816 cooling Methods 0.000 title claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 239000011127 biaxially oriented polypropylene Substances 0.000 title claims abstract description 50
- 229920006378 biaxially oriented polypropylene Polymers 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 43
- 238000003756 stirring Methods 0.000 claims abstract description 41
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052802 copper Inorganic materials 0.000 claims abstract description 21
- 239000010949 copper Substances 0.000 claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 8
- 230000005855 radiation Effects 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 22
- 239000007788 liquid Substances 0.000 abstract description 14
- 239000002826 coolant Substances 0.000 abstract description 12
- 239000012528 membrane Substances 0.000 abstract description 6
- 238000004378 air conditioning Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000110 cooling liquid Substances 0.000 description 35
- 230000008901 benefit Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a water cooling device of a BOPP film production line, which relates to the technical field of BOPP film production and comprises a fixed box, a stirring assembly and a cooling assembly; the top end of the fixed box is connected with a shell, and the front surface of the shell is connected with a heat conducting copper plate in a clamping way; the stirring assembly comprises a water storage tank and a stirring rod, and the water storage tank is arranged at the inner side of the bottom end of the fixed tank; the beneficial effects of the utility model are as follows: through hold into the inside of cooling bath and be convenient for make the heat conduction copper absorb the air conditioning thereby make the heat conduction copper cool down the cooling, reach the purpose of cooling to the BOPP membrane in the tensile step of production line, be convenient for control the circulation of coolant liquid through water pump and solenoid valve, be convenient for further cool down the inside of casing through holistic air conditioning of cooling tube, supplementary cooling effect when having promoted BOPP membrane production is also convenient for drive the coolant liquid and circulate in the inside of storage water tank and the inside of cooling tube through the water pump.
Description
Technical Field
The utility model relates to a water cooling device, in particular to a water cooling device of a BOPP film production line, and belongs to the technical field of BOPP film production.
Background
The BOPP film is produced by firstly manufacturing a sheet or thick film from a melt of high polymer polypropylene through a long and narrow machine head, then stretching the sheet or thick film in two vertical directions at a certain temperature and a set speed in a special stretching machine simultaneously or step by step, and performing proper cooling or heat treatment or special processing to obtain the film, wherein the existing BOPP film production line can generate a large amount of heat when the film is produced, and the BOPP film production uses air cooling to cause the bulge of the outer surface of the BOPP film under the action of wind force, so that the BOPP film needs to be cooled by water cooling;
The water cooling device of the BOPP film production line disclosed by the application number of CN202021350517.0 is also an increasingly mature technology, and provides the problems that the external surface of the BOPP film can generate bulges under the action of wind force when the existing BOPP film production line generates a large amount of heat during film production, the BOPP film cannot be molded due to the air cooling and cooling, and the production and the manufacturing of the BOPP film are unfavorable, and the water cooling device of the BOPP film production line has the advantages that the cooling device of the BOPP film production line can circulate the cooling liquid in the water cooling device through a pump, the effect of cooling the BOPP film production line can be achieved by taking the heat conducting copper plate, the heat on the heat conducting copper plate can be absorbed through the heat absorbing pipe, the effect of cooling is achieved, the cooling device has the advantages that the heat absorbed by the cooling liquid is discharged through the heat-discharging pipe and the first heat-dissipating fins, the cooling liquid can be cooled conveniently, the cooling liquid can be stored through the water tank, the cooling liquid can be timely supplemented when the cooling liquid is consumed, the cooling effect of the cooling liquid is avoided, the heat on the production line can be absorbed under the condition that no wind is generated through the heat-conducting copper plate, the cooling effect is achieved, the shape of the BOPP film can be damaged by air cooling, the auxiliary heat dissipation can be carried out before the cooling liquid enters the heat-discharging pipe through the second heat-dissipating fins, the structure is reasonable, the problem that the BOPP film cannot be formed due to air cooling of the production line is avoided, and meanwhile, the high-temperature cooling problem' of the production line is solved;
however, the above manner has the following defects in the use process:
the cooling liquid is circulated through the water pump, but a structure for assisting in stirring the cooling liquid is not arranged, so that the cooling effect of circulating cooling of the cooling liquid is not convenient to improve.
Disclosure of utility model
The utility model aims to provide a BOPP film production line water cooling device, which solves the problems that the structure for assisting in stirring cooling liquid is not arranged in the background art, and the cooling effect of circulating cooling of the cooling liquid is inconvenient to improve.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the BOPP film production line water cooling device comprises a fixed box, a stirring assembly and a cooling assembly; the top end of the fixed box is connected with a shell, and the front face of the shell is connected with a heat conducting copper plate in a clamping manner; the stirring assembly comprises a water storage tank and a stirring rod, the water storage tank is arranged at the inner side of the bottom end of the fixed tank, a driving motor is connected at the inner side of the top end of the fixed tank, the stirring rod is arranged on a transmission shaft of the driving motor, a plurality of stirring blades are connected to the surface of the stirring rod, a heat radiation fan is connected at the inner side of the top end of the fixed tank, a rectangular heat radiation groove is formed in the top end of the water storage tank, a water inlet pipe is connected to one side of the water storage tank, a water outlet pipe is connected to one side of the water storage tank, and a clamping cover is connected to one end of the water inlet pipe and one end of the water outlet pipe in a clamping mode; the cooling assembly comprises a water pump, a connecting pipe and a cooling groove, wherein the water pump is arranged at the inner side of the bottom end of the fixed box, a cooling pipe is connected to the water outlet end of the water pump, the connecting pipe is arranged at the water inlet end of the water pump, the cooling groove is formed in the inner side of the front side of the shell, the top end of the cooling groove is connected with a first pipe body, one side of the cooling groove is connected with a second pipe body, the inner side of the cooling groove is connected with a sealing plate in a clamping mode, two pull blocks are connected to the front side of the sealing plate, ventilation grooves are formed in two sides of the shell, and an electromagnetic valve is connected to the outer side of the cooling pipe.
As a preferable technical scheme of the utility model, the surface of the stirring rod is rotationally connected with the inner side of the top end of the water storage tank.
As a preferable technical scheme of the utility model, the bottom end of the stirring rod is rotatably connected with the inner side of the bottom end of the water storage tank through a bearing.
As a preferable embodiment of the present utility model, the surface of the cooling pipe is connected to both the inside of the top end of the stationary box and the inside of the bottom end of the housing.
As a preferable technical scheme of the utility model, one end of the connecting pipe is connected with the other side of the water storage tank.
As a preferable technical scheme of the utility model, the two sides of the shell are connected with dustproof nets, and the dustproof nets are attached to the ventilation grooves.
According to the preferred technical scheme, one side of the fixing box is connected with a switch panel, the surface of the switch panel is respectively provided with a driving motor switch, a heat dissipation fan switch, a water pump switch and an electromagnetic valve switch, the driving motor is electrically connected with an external power supply through the driving motor switch, the heat dissipation fan is electrically connected with the external power supply through the heat dissipation fan switch, the water pump is electrically connected with the external power supply through the water pump switch, and the electromagnetic valve is electrically connected with the external power supply through the electromagnetic valve switch.
Compared with the related art, the water cooling device for the BOPP film production line has the following beneficial effects:
BOPP film production line water cooling device, thereby be convenient for make the heat conduction copper absorb the air conditioning through the inside to the cooling bath so that heat conduction copper cooling, reach the purpose of cooling the BOPP film in the tensile step of production line, be convenient for control the circulation of coolant liquid through water pump and solenoid valve, be convenient for further cool down the inside of casing through the holistic air conditioning of cooling tube, the cooling effect when assisting the BOPP film production has been promoted, also be convenient for drive the coolant liquid and circulate in the inside of storage water tank and cooling tube through the water pump, be convenient for stir the heat dissipation to the coolant liquid through puddler and stirring vane, and the cooling effect to the coolant liquid has all been promoted through radiator fan's blowing forced air cooling, do benefit to the coolant liquid and carry out circulative cooling.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the internal planar structure of the front face of the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model;
FIG. 4 is a schematic diagram of a second cross-sectional structure of the present utility model.
In the figure: 1. a fixed box; 2. a stirring assembly; 21. a water storage tank; 22. a driving motor; 23. a stirring rod; 24. stirring blades; 25. a heat radiation fan; 26. rectangular radiating grooves; 27. a water inlet pipe; 28. a drain pipe; 3. a cooling assembly; 31. a water pump; 32. a cooling tube; 33. a connecting pipe; 34. a cooling tank; 35. a sealing plate; 36. pulling blocks; 37. a vent groove; 38. a dust screen; 39. an electromagnetic valve; 4. a housing; 5. a thermally conductive copper plate; 6. and a switch panel.
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.
Referring to fig. 1 to 4, the present utility model provides a BOPP film production line water cooling device, which comprises a fixed box 1, a stirring component 2 and a cooling component 3; the top end of the fixed box 1 is fixedly connected with a shell 4, and the front surface of the shell 4 is connected with a heat conducting copper plate 5 in a clamping way, so that heat conduction is facilitated;
the device is arranged in the BOPP film stretching step of the BOPP film production line and cools the BOPP film through the heat-conducting copper plate 5;
The stirring assembly 2 comprises a water storage tank 21 and a stirring rod 23, wherein the water storage tank 21 is fixedly arranged at the inner side of the bottom end of the fixed box 1, a driving motor 22 is fixedly connected at the inner side of the top end of the fixed box 1, the stirring rod 23 is fixedly arranged on a transmission shaft of the driving motor 22, a plurality of stirring blades 24 are fixedly connected to the surface of the stirring rod 23, a heat dissipation fan 25 is fixedly connected at the inner side of the top end of the fixed box 1, a rectangular heat dissipation groove 26 is formed in the top end of the water storage tank 21, a water inlet pipe 27 is fixedly connected to one side of the water storage tank 21, a water outlet pipe 28 is fixedly connected to one side of the water storage tank 21, and one end of the water inlet pipe 27 and one end of the water outlet pipe 28 are both clamped and connected with a clamping cover so as to facilitate stirring and heat dissipation of cooling liquid;
The surface of the stirring rod 23 is rotationally connected with the inner side of the top end of the water storage tank 21, so that the stirring rod 23 is favorably rotated;
The bottom end of the stirring rod 23 is rotationally connected with the inner side of the bottom end of the water storage tank 21 through a bearing, so that the rotation stability of the stirring rod 23 is improved;
One side of the fixed box 1 is connected with a switch panel 6, the surface of the switch panel 6 is provided with a driving motor switch and a heat dissipation fan switch, the driving motor 22 is electrically connected with an external power supply through the driving motor switch, and the heat dissipation fan 25 is electrically connected with the external power supply through the heat dissipation fan switch, so that the driving motor 22 and the heat dissipation fan 25 can be controlled to operate conveniently;
When the cooling liquid inside the cooling pipe 32 needs to be recycled, the driving motor 22 is controlled to operate in advance through the driving motor switch, the stirring rod 23 is driven to rotate through the driving motor 22, and then the stirring blades 24 are driven to rotate, so that the cooling liquid in the water storage tank 21 is stirred, and the cooling fan 25 is controlled to operate through the cooling fan switch, the cooling fan 25 carries out air cooling on the liquid in the water storage tank 21 through the rectangular cooling groove 26, so that the cooling effect of the cooling liquid is improved, then the electromagnetic valve 39 is opened, the cooling liquid inside the water storage tank 21 is introduced into the cooling pipe 32 through the water pump 31, the cooling liquid after the cooling pipe 32 is used flows into the water storage tank 21, the circulation of the cooling liquid is completed, then the water pump 31 is repeatedly closed to continue circulating reciprocation, and the cooling liquid which cannot be recycled is replaced through the water drain pipe 28 arranged on the water storage tank 21 is facilitated, and the whole cooling effect of the BOPP film production line is prevented from being influenced.
The cooling assembly 3 comprises a water pump 31, a connecting pipe 33 and a cooling groove 34, wherein the water pump 31 is fixedly arranged at the inner side of the bottom end of the fixed box 1, the water outlet end of the water pump 31 is fixedly connected with the cooling pipe 32, the connecting pipe 33 is fixedly arranged at the water inlet end of the water pump 31, the cooling groove 34 is formed in the inner side of the front face of the shell 4, the top end of the cooling groove 34 is fixedly connected with a first pipe body, one side of the cooling groove 34 is fixedly connected with a second pipe body, the inner side of the cooling groove 34 is connected with a sealing plate 35 in a clamping manner, the front face of the sealing plate 35 is fixedly connected with two pulling blocks 36, the two sides of the shell 4 are respectively provided with an air vent 37, the outer side of the cooling pipe 32 is fixedly connected with an electromagnetic valve 39, and the circulation of cooling liquid is convenient to control;
the surface of the cooling pipe 32 is connected with the inner side of the top end of the fixed box 1 and the inner side of the bottom end of the shell 4, so that the cooling pipe 32 is conveniently fixed;
one end of the connecting pipe 33 is connected with the other side of the water storage tank 21, so that water can be conveniently introduced;
The two sides of the shell 4 are fixedly connected with dustproof nets 38, and the two dustproof nets 38 are respectively attached to the two ventilation grooves 37, so that dust prevention is facilitated;
One side of the fixed box 1 is connected with a switch panel 6, the surface of the switch panel 6 is provided with a water pump switch and an electromagnetic valve switch, the water pump 31 is electrically connected with an external power supply through the water pump switch, and the electromagnetic valve 39 is electrically connected with the external power supply through the electromagnetic valve switch, so that the operation of the water pump 31 and the electromagnetic valve 39 is controlled conveniently;
Firstly, this device sets up in the tensile step of BOPP membrane in BOPP membrane production line, cool down the BOPP membrane through heat conduction copper 5, then open the clamping cover on the inlet tube 27, let in the storage water tank 21 with the coolant liquid, after the inside of storage water tank 21 stores in right amount coolant liquid, with clamping cover again with inlet tube 27 looks block, then control the operation of water pump 31 through the water pump switch on the switch panel 6, and at this moment keep open condition through solenoid valve switch control solenoid valve 39, pass through connecting pipe 33 with the inside coolant liquid of storage water tank 21 and let in cooling tube 32 through water pump 31, at this moment, the inside of cooling tube 32 holds sufficient coolant liquid, then close water pump 31 and solenoid valve 39, conduct the cooling effect for heat conduction copper 5, reach the effect of cooling to BOPP membrane production line, first body through the top (show in figure 2, but do not make the sign) to the inside of cooling tank 34 hold right amount of coolant liquid, thereby absorb the effect on the heat conduction copper 5, reach the effect through the cooling tank 34 left side lower side connection body (the second body is shown in the figure 2, do not make the cooling tank 34 take out the cooling tank 2, make the cooling tank take out the scale deposit easily, the inside is just cooled down the cooling tank 34 is cooled down, the inside is cooled down by the cooling tank is easy to be cooled down, the cooling plate is cooled down by the cooling plate is removed through the cooling plate 35, the inside is easy to be cooled down, the cooling plate is cooled down by the cooling plate is easy to be more than the cooling plate is easy to the cooling plate.
When in use, firstly, the device is arranged in the BOPP film stretching step of the BOPP film production line, the BOPP film is cooled by the heat-conducting copper plate 5, then the clamping cover on the water inlet pipe 27 is opened, the cooling liquid is introduced into the water storage tank 21 until a proper amount of cooling liquid is stored in the water storage tank 21, the clamping cover is clamped with the water inlet pipe 27 again, then the water pump 31 is controlled to operate by the water pump switch on the switch panel 6, the solenoid valve 39 is controlled to be in an on state by the solenoid valve switch at the moment, the cooling liquid in the water storage tank 21 is introduced into the cooling pipe 32 by the water pump 31 through the connecting pipe 33, at the moment, a sufficient amount of cooling liquid is stored in the cooling pipe 32, then the water pump 31 and the solenoid valve 39 are closed, the cooling effect is conducted to the heat-conducting copper plate 5, and the effect of cooling the BOPP film production line is achieved, meanwhile, a proper amount of cooling liquid is stored into the cooling groove 34 through a first pipe body (shown in fig. 2 but not numbered) at the top, so that the cooling effect can be further conducted to the heat conducting copper plate 5, the heat on the heat conducting copper plate 5 is absorbed, the cooling effect is achieved, the cooling liquid can flow out for replacement through a second pipe body (shown in fig. 2 but not numbered) connected below the left side of the cooling groove 34, when the inside of the cooling groove 34 needs to be scrubbed and removed, the heat conducting copper plate 5 is clamped and detached from the shell 4, and the two pull blocks 36 are held to pull out the sealing plate 35, so that the cooling groove 34 can be leaked out, the inside of the cooling groove 34 can be scrubbed simply through a long brush, the scale can be removed conveniently, and the cooling effect is improved;
When the cooling liquid inside the cooling pipe 32 needs to be recycled, the driving motor 22 is controlled to operate in advance through the driving motor switch, the stirring rod 23 is driven to rotate through the driving motor 22, and then the stirring blades 24 are driven to rotate, so that the cooling liquid in the water storage tank 21 is stirred, and the cooling fan 25 is controlled to operate through the cooling fan switch, the cooling fan 25 carries out air cooling on the liquid in the water storage tank 21 through the rectangular cooling groove 26, so that the cooling effect of the cooling liquid is improved, then the electromagnetic valve 39 is opened, the cooling liquid inside the water storage tank 21 is introduced into the cooling pipe 32 through the water pump 31, the cooling liquid after the cooling pipe 32 is used flows into the water storage tank 21, the circulation of the cooling liquid is completed, then the water pump 31 is repeatedly closed to continue circulating reciprocation, and the cooling liquid which cannot be recycled is replaced through the water drain pipe 28 arranged on the water storage tank 21 is facilitated, and the whole cooling effect of the BOPP film production line is prevented from being influenced.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
- BOPP film production line water cooling device, which is characterized by comprisingA fixed box (1); the top end of the fixed box (1) is connected with a shell (4), and the front surface of the shell (4) is connected with a heat conducting copper plate (5) in a clamping manner;A stirring assembly (2); the stirring assembly (2) comprises a water storage tank (21) and a stirring rod (23), the water storage tank (21) is arranged on the inner side of the bottom end of the fixed box (1), a driving motor (22) is connected on the inner side of the top end of the fixed box (1), the stirring rod (23) is arranged on a transmission shaft of the driving motor (22), a plurality of stirring blades (24) are connected on the surface of the stirring rod (23), a heat radiation fan (25) is connected on the inner side of the top end of the fixed box (1), a rectangular heat radiation groove (26) is formed in the top end of the water storage tank (21), a water inlet pipe (27) is connected on one side of the water storage tank (21), a water outlet pipe (28) is connected on one side of the water inlet pipe (27), and one end of the water outlet pipe (28) is connected with a clamping cover in a clamping mode.A cooling assembly (3); the cooling assembly (3) comprises a water pump (31), a connecting pipe (33) and a cooling groove (34), wherein the water pump (31) is arranged on the inner side of the bottom end of the fixed box (1), a cooling pipe (32) is connected to the water outlet end of the water pump (31), the connecting pipe (33) is arranged on the water inlet end of the water pump (31), the cooling groove (34) is arranged on the inner side of the front face of the shell (4), the top end of the cooling groove (34) is connected with a first pipe body, one side of the cooling groove (34) is connected with a second pipe body, a sealing plate (35) is clamped on the inner side of the cooling groove (34), two pull blocks (36) are connected on the front face of the sealing plate (35), ventilation grooves (37) are formed in the two sides of the shell (4), and electromagnetic valves (39) are connected on the outer side of the cooling pipe (32).
- 2. The BOPP film production line water cooling device of claim 1, wherein: the surface of the stirring rod (23) is rotationally connected with the inner side of the top end of the water storage tank (21).
- 3. The BOPP film production line water cooling device of claim 1, wherein: the bottom end of the stirring rod (23) is rotatably connected with the inner side of the bottom end of the water storage tank (21) through a bearing.
- 4. The BOPP film production line water cooling device of claim 1, wherein: the surface of the cooling pipe (32) is connected with the inner side of the top end of the fixed box (1) and the inner side of the bottom end of the shell (4).
- 5. The BOPP film production line water cooling device of claim 1, wherein: one end of the connecting pipe (33) is connected with the other side of the water storage tank (21).
- 6. The BOPP film production line water cooling device of claim 1, wherein: both sides of the shell (4) are connected with dustproof nets (38), and the dustproof nets (38) are attached to the ventilation grooves (37).
- 7. The BOPP film production line water cooling device of claim 1, wherein: one side of the fixed box (1) is connected with a switch panel (6), the surface of the switch panel (6) is respectively provided with a driving motor switch, a heat dissipation fan switch, a water pump switch and an electromagnetic valve switch, the driving motor (22) is electrically connected with an external power supply through the driving motor switch, the heat dissipation fan (25) is electrically connected with the external power supply through the heat dissipation fan switch, the water pump (31) is electrically connected with the external power supply through the water pump switch, and the electromagnetic valve (39) is electrically connected with the external power supply through the electromagnetic valve switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323065261.5U CN221212463U (en) | 2023-11-14 | 2023-11-14 | Water cooling device for BOPP film production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323065261.5U CN221212463U (en) | 2023-11-14 | 2023-11-14 | Water cooling device for BOPP film production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221212463U true CN221212463U (en) | 2024-06-25 |
Family
ID=91541799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323065261.5U Active CN221212463U (en) | 2023-11-14 | 2023-11-14 | Water cooling device for BOPP film production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221212463U (en) |
-
2023
- 2023-11-14 CN CN202323065261.5U patent/CN221212463U/en active Active
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