CN215418287U - Ceramic roller heating composite device - Google Patents
Ceramic roller heating composite device Download PDFInfo
- Publication number
- CN215418287U CN215418287U CN202121098699.1U CN202121098699U CN215418287U CN 215418287 U CN215418287 U CN 215418287U CN 202121098699 U CN202121098699 U CN 202121098699U CN 215418287 U CN215418287 U CN 215418287U
- Authority
- CN
- China
- Prior art keywords
- assembly
- roller
- air cylinder
- ceramic thermal
- balance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Rolls And Other Rotary Bodies (AREA)
Abstract
The utility model discloses a ceramic roller heating composite device, which comprises an upper ceramic thermal composite roller component and a lower ceramic thermal composite roller component, wherein a balance adjusting mechanism is arranged on the upper ceramic thermal composite roller component and comprises a bracket, a spring cylinder component and a sensor connecting plate, the device comprises a left and right pull pressure sensor, a left and right balance cylinder assembly, a left and right balance cylinder pressure reducing valve, wherein the left and right balance cylinder assembly are respectively positioned at two sides of a spring cylinder assembly, the output end of the left and right balance cylinder assembly faces downwards and is connected with an upper ceramic thermal compound roller assembly, the output end of the spring cylinder assembly faces downwards and is connected with a sensor connecting plate, two ends of the sensor connecting plate are respectively connected with the upper ceramic thermal compound roller assembly through the left and right pull pressure sensor, two sides of the upper ceramic thermal compound roller assembly are respectively provided with a left and right height dial indicator, and a left and right height adjusting assembly is respectively arranged between two sides of the upper and lower ceramic thermal compound roller assemblies. The utility model can adjust the clearance between the upper and lower composite rollers according to the strip-shaped composite bodies with different thicknesses, and has high flexibility.
Description
Technical Field
The utility model relates to the technical field of lithium battery production equipment, in particular to a ceramic roller heating and compounding device.
Background
Lithium ion batteries are used as a new generation of chemical power supply, and have incomparable advantages with nickel-hydrogen, nickel-cadmium, lead-acid batteries and the like, so that the lithium ion batteries are widely applied to consumer electronics products at present and are also used as power batteries to be applied to various pure electric and hybrid electric vehicles. At present, the manufacturing modes of the lithium ion battery mainly comprise a winding type and a lamination type, and the performance and the actual production of the lithium ion battery are seen: the winding type has the advantage of easy manufacturing process, the laminated type has the advantage of good quality in all aspects of the battery, and people focus attention on the winding type laminated battery in order to combine the advantages of the two processes.
The production process of the sheet lithium battery comprises a composite process of hot-pressing composite molding of a pole piece and a diaphragm, the composite process is generally realized by a hot-pressing composite system, the hot-pressing composite system comprises a driving device, a heating device and a pressing device, namely, the pole piece and the diaphragm are firstly laminated, the driving device pulls the laminated pole piece and the diaphragm to move, then the laminated pre-composite body is heated by the heating device, and then the pre-composite body in a high-temperature state is extruded by a roller shaft of the pressing device so as to be bonded and molded, however, the pressing device in the prior art generally comprises an upper pressing roller and a lower pressing roller, a motor component is arranged on one side of the upper pressing roller to drive, a band-shaped composite body is clamped between the upper pressing roller and the lower pressing roller and moves along with the band-shaped composite body to roll the band-shaped composite body so as to realize the hot-pressing composite of the band-shaped composite body, and the pole piece and the diaphragm are bonded; because the upper and lower compression roller among the device is fixed the setting, when the banding complex body of different thickness of needs roll extrusion, need shut down and dismouting pair roller in order to adjust the clearance of upper and lower compression roller, cost a large amount of downtime, lead to production efficiency low, the productivity is general, is unfavorable for the development of enterprise.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ceramic roller heating and compounding device, and aims to solve the technical problems that in the prior art, a fixed upper and lower pressing roller mechanism in a pressing device cannot adjust the gap and cannot adapt to belt-shaped composites with different thicknesses, so that the productivity is general and the production efficiency is low.
The technical scheme of the utility model is as follows:
a ceramic roller heating composite device comprises an upper ceramic thermal composite roller assembly and a lower ceramic thermal composite roller assembly which are oppositely arranged from top to bottom, a first motor assembly arranged at one end of the upper ceramic thermal composite roller assembly and a second motor assembly arranged at one end of the lower ceramic thermal composite roller assembly, wherein a balance adjusting mechanism is arranged on the upper ceramic thermal composite roller assembly and comprises a support, a spring air cylinder assembly, a sensor connecting plate, a left pull pressure sensor, a right pull pressure sensor, a left balance air cylinder assembly, a right balance air cylinder assembly, a left balance air cylinder reducing valve and a right balance air cylinder reducing valve, the spring air cylinder assembly, the left balance air cylinder assembly and the right balance air cylinder assembly are arranged on the support, the left balance air cylinder assembly and the right balance air cylinder assembly are respectively positioned at two sides of the spring air cylinder assembly, and the output ends of the left balance air cylinder assembly and the right balance air cylinder assembly are downwards connected with the upper ceramic thermal composite roller assembly and the right balance air cylinder assembly The output end of the spring cylinder assembly is connected with a sensor connecting plate downwards, two ends of the sensor connecting plate are respectively connected with the upper ceramic thermal compound roller assembly through a left pulling pressure sensor and a right pulling pressure sensor, the left pulling pressure sensor and the right pulling pressure sensor are arranged on two sides of the center of the upper ceramic thermal compound roller component in a matching way, the left balance cylinder pressure reducing valve and the right balance cylinder pressure reducing valve are respectively arranged at two sides of the bracket, the left balance cylinder pressure reducing valve is connected with the left balance cylinder component through an air pipe, the right balance cylinder pressure reducing valve is connected with the right balance cylinder component through an air pipe, a left height dial indicator and a right height dial indicator are respectively arranged on two sides of the upper ceramic thermal compounding roller assembly, and a left height adjusting assembly and a right height adjusting assembly are respectively arranged between two sides of the upper ceramic thermal composite roller assembly and two sides of the lower ceramic thermal composite roller assembly.
Furthermore, the balance adjusting mechanism further comprises a sliding plate assembly, the spring air cylinder assembly, the left balance air cylinder assembly and the right balance air cylinder assembly are arranged on the sliding plate assembly, a sliding rail is vertically arranged on the support, and the sliding plate assembly is movably connected with the sliding rail.
Further, the balance adjusting mechanism further comprises a pressurizing motor assembly, the pressurizing motor assembly is arranged on the support, and the output end of the pressurizing motor assembly is connected with the sliding plate assembly downwards.
Furthermore, the pressurizing motor assembly drives the sliding plate assembly through a ball screw therein.
Furthermore, the composite rollers in the upper ceramic thermal composite roller assembly and the lower ceramic thermal composite roller assembly are internally provided with heating elements, and the surfaces of the composite rollers are coated with high-strength ceramic.
Furthermore, a spring air cylinder pressure reducing valve is further arranged on one side of the support and connected with the spring air cylinder assembly through an air pipe.
Furthermore, first motor element and second motor element all include motor, speed reducer and flange.
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the utility model, two groups of balance cylinders are matched with two groups of tension and pressure sensors, so that the gravity of the upper ceramic thermal compound roller assembly is balanced and accurately counteracted, and the influence of the gravity of the upper ceramic thermal compound roller assembly on the accurate adjustment of the pressure of the upper compound roller on a material belt is avoided, so that the material belt compound pressure is bad, and the compound effect is influenced; the phenomenon that due to eccentric gravity, the upper composite roller generates different pressures on two sides of the material belt passing through the mechanism, so that the material belt pressure is uneven, and meanwhile, the material belt deviates, and the product quality is influenced is avoided;
(2) according to the utility model, two groups of height adjusting assemblies are adopted to match two height dial indicators, so that the gap between the upper and lower composite rollers can be accurately adjusted, a target gap value can be obtained more quickly, the dial indicator degree value can be uploaded to a control system and compared with a system set value, online monitoring is formed, and waste caused by continuous production of unqualified products is avoided;
(3) the surfaces of the upper and lower composite rollers are coated with high-strength ceramics, so that when the combined material belt is heated and pressurized, the materials on the surface of the material belt are not adhered to the surfaces of the rollers.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a ceramic roller heating and compounding device provided by the utility model.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Examples
Referring to fig. 1, an embodiment of the present invention provides a ceramic roller heating composite device, which includes an upper ceramic thermal composite roller assembly 1 and a lower ceramic thermal composite roller assembly 2 disposed opposite to each other, a first motor assembly 3 disposed at one end of the upper ceramic thermal composite roller assembly 1, and a second motor assembly 4 disposed at one end of the lower ceramic thermal composite roller assembly 2, wherein each of the first motor assembly 3 and the second motor assembly 4 includes a motor, a speed reducer, and a connecting flange, and a balance adjusting mechanism is disposed on the upper ceramic thermal composite roller assembly 1, and includes a bracket 501, a pressurizing motor assembly 502, a sliding plate assembly 503, a spring cylinder assembly 504, a sensor connecting plate 505, a left-pull pressure sensor 506, a right-pull pressure sensor 507, a left balance cylinder assembly 508, a right balance cylinder assembly 509, a spring cylinder pressure reducing valve 510, a left balance cylinder pressure reducing valve 511, a left balance cylinder assembly 509, a left balance cylinder pressure reducing valve 511, a left balance cylinder assembly, a spring cylinder assembly, and a left balance cylinder assembly, A right balance cylinder pressure reducing valve 512, a pressurizing motor assembly 502 is arranged at the back of the bracket 501, a spring cylinder assembly 504, a left balance cylinder assembly 508 and a right balance cylinder assembly 509 are arranged on the sliding plate assembly 503, the output end of the pressurizing motor assembly 502 is downwards connected with the sliding plate assembly 503, a sliding rail 513 is vertically arranged on the bracket 501, the sliding plate assembly 503 is movably connected with the sliding rail 513, the left balance cylinder assembly 508 and the right balance cylinder assembly 509 are respectively positioned at two sides of the spring cylinder assembly 504, the output ends of the left balance cylinder assembly 508 and the right balance cylinder assembly 509 are downwards connected with the ceramic heat compounding roller assembly 1, the output end of the spring cylinder assembly 504 is downwards connected with a sensor connecting plate 505, two ends of the sensor connecting plate 505 are respectively connected with the ceramic heat compounding roller assembly 1 through a left pull pressure sensor 506 and a right pull pressure sensor 507, the left pull pressure sensor 506 and the right pull pressure sensor 507 are proportionally positioned at two sides of the center of the upper ceramic heat compounding roller assembly 1, the left balance cylinder pressure reducing valve 511 and the right balance cylinder pressure reducing valve 512 are respectively arranged on two sides of the bracket 501, the spring cylinder pressure reducing valve 510 is arranged on the same side of the right balance cylinder pressure reducing valve 512, the spring cylinder pressure reducing valve 510 is connected with the spring cylinder assembly 504 through an air pipe, the left balance cylinder pressure reducing valve 511 is connected with the left balance cylinder assembly 508 through an air pipe, the right balance cylinder pressure reducing valve 512 is connected with the right balance cylinder assembly 509 through an air pipe, the left height dial indicator 6 and the right height dial indicator 7 are respectively arranged on two sides of the upper ceramic thermal compound roller assembly 1, and the left height adjusting assembly 8 and the right height adjusting assembly 9 are respectively arranged between two sides of the upper ceramic thermal compound roller assembly 1 and two sides of the lower ceramic thermal compound roller assembly 2.
The working principle is as follows: the pressurizing motor assembly 502 lifts the slide plate assembly 503 through a ball screw therein, thereby lifting the spring cylinder assembly 504 mounted thereon, thereby lifting the left and right pulling pressure sensors 506 and 507 connected thereto, and the upper ceramic thermal compound roller assembly 1 connected to the left and right pulling pressure sensors 506 and 507 is lifted to be separated from the lower ceramic thermal compound roller assembly 2; adjusting a right balance cylinder pressure reducing valve 512 and a left balance cylinder pressure reducing valve 511 to respectively adjust the upward generated pulling force of the right balance cylinder assembly 509 and the left balance cylinder assembly 508 until the output pressure values of the right pull pressure sensor 507 and the left pull pressure sensor 506 are zero at the same time; the pressurizing motor component 502 drives the sliding plate component 503 to move downwards, and is connected and driven through various mechanisms in the middle, so that the upper ceramic thermal compound roller component 1 moves downwards and is in tangential and close contact with the lower ceramic thermal compound roller component 2; adjusting and zeroing the mounting heights of a left height dial indicator 6 and a right height dial indicator 7 which are mounted at two sides of the upper ceramic thermal composite roller assembly 1; adjusting the pressure value of the spring cylinder pressure reducing valve 510 to 0.03Mpa, so that the spring cylinder assembly 504 generates smaller pressure downwards; adjusting the left height adjusting assembly 8 and the right height adjusting assembly 9, and reading the values of the left height dial indicator 6 and the right height dial indicator 7 to judge so that the upper ceramic thermal compound roller assembly 1 and the lower ceramic thermal compound roller assembly 2 form target gap values with equal two ends; adjusting the spring cylinder pressure reducing valve 510 to allow the spring cylinder assembly 504 to generate a target value of pressure downward; the motors of the upper ceramic thermal compound roller assembly 1 and the lower ceramic thermal compound roller assembly 2 respectively drive the ceramic thermal compound rollers to rotate oppositely; the combined material belt of the pole piece diaphragm arranged and stacked in the preorder station enters between the upper ceramic heat compounding roller assembly 1 and the lower ceramic heat compounding roller assembly 2 of the device from the front of the device, and is subjected to heating and pressurizing for compound molding.
Wherein, the pressurizing motor assembly 502 applies downward thrust to the upper ceramic thermal compound roller assembly 1 through a ball screw, and the magnitude of the thrust is adjusted by setting the torque of a servo motor therein. By adjusting the spring cylinder pressure relief valve 510, the downward thrust of the spring cylinder assembly 504 is adjusted-by the maximum value of the combined strip of material composite desired pressure range between the two rollers, to protect the strip of material from overpressure. At the same time, the spring cylinder assembly 504 also acts to stabilize the downward pressure of the upper ceramic thermal compounding roller assembly 1 against the strip.
Wherein, because the center of gravity of the upper ceramic thermal compound roller component 1 is deviated to the left. Thus, by creating different pull forces upwards by the right balancing cylinder assembly 509 and the left balancing cylinder assembly 508, the weight of the upper ceramic thermal compound roll assembly 1 is counterbalanced to avoid the following two disadvantages: (1) the gravity center deviated to the left side enables the left end of the upper ceramic thermal compound roller assembly 1 to be distributed with larger gravity than the right end; (2) the pressure of the upper ceramic thermal compounding roller assembly 1 against the compound tape passing through the apparatus includes its own weight.
The left height adjusting assembly 8 and the right height adjusting assembly 9 can respectively adjust the gaps at the two ends of the upper ceramic thermal compound roller assembly 1 and the lower ceramic thermal compound roller assembly 2, and the gap values are read through the left height dial indicator 6 and the right height dial indicator 7.
Wherein, the composite roller in the upper ceramic thermal composite roller assembly 1 and the lower ceramic thermal composite roller assembly 2 is internally provided with a heating element, and the surface is coated with high-strength ceramic.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A ceramic roller heating composite device comprises an upper ceramic thermal composite roller assembly and a lower ceramic thermal composite roller assembly which are oppositely arranged up and down, a first motor assembly arranged at one end of the upper ceramic thermal composite roller assembly and a second motor assembly arranged at one end of the lower ceramic thermal composite roller assembly, and is characterized in that: the upper ceramic thermal compound roller assembly is provided with a balance adjusting mechanism, the balance adjusting mechanism comprises a bracket, a spring air cylinder assembly, a sensor connecting plate, a left pull pressure sensor, a right pull pressure sensor, a left balance air cylinder assembly, a right balance air cylinder assembly, a left balance air cylinder pressure reducing valve and a right balance air cylinder pressure reducing valve, the spring air cylinder assembly, the left balance air cylinder assembly and the right balance air cylinder assembly are arranged on the bracket, the left balance air cylinder assembly and the right balance air cylinder assembly are respectively positioned at two sides of the spring air cylinder assembly, the output ends of the left balance air cylinder assembly and the right balance air cylinder assembly are downwards connected with the upper ceramic thermal compound roller assembly, the output end of the spring air cylinder assembly is downwards connected with the sensor connecting plate, and the two ends of the sensor connecting plate are respectively connected with the upper ceramic thermal compound roller assembly through the left pull pressure sensor and the right pull pressure sensor, draw pressure sensor and right side to draw pressure sensor and match to be located go up the both sides at ceramic thermal recombination roller subassembly center, left side balance cylinder relief pressure valve and right balance cylinder relief pressure valve set up respectively the both sides of support, left side balance cylinder relief pressure valve pass through the trachea with left side balance cylinder subassembly is connected, right side balance cylinder relief pressure valve pass through the trachea with right side balance cylinder subassembly is connected, the both sides of going up ceramic thermal recombination roller subassembly are provided with left height dial indicator and right height dial indicator respectively, it is provided with left height control subassembly and right height control subassembly respectively to go up between the both sides of ceramic thermal recombination roller subassembly and the both sides of lower ceramic thermal recombination roller subassembly.
2. The ceramic roller heating composite device according to claim 1, characterized in that: the balance adjusting mechanism further comprises a sliding plate assembly, the spring air cylinder assembly, the left balance air cylinder assembly and the right balance air cylinder assembly are arranged on the sliding plate assembly, a sliding rail is vertically arranged on the support, and the sliding plate assembly is movably connected with the sliding rail.
3. The ceramic roller heating composite device according to claim 2, characterized in that: the balance adjusting mechanism further comprises a pressurizing motor assembly, the pressurizing motor assembly is arranged on the support, and the output end of the pressurizing motor assembly is connected with the sliding plate assembly downwards.
4. The ceramic roller heating composite device according to claim 3, characterized in that: the pressurizing motor component drives the sliding plate component through a ball screw therein.
5. The ceramic roller heating composite device according to claim 1, characterized in that: the composite rollers in the upper ceramic thermal composite roller assembly and the lower ceramic thermal composite roller assembly are internally provided with heating elements, and the surfaces of the composite rollers are coated with high-strength ceramic.
6. The ceramic roller heating composite device according to claim 1, characterized in that: and a spring air cylinder pressure reducing valve is further arranged on one side of the support and is connected with the spring air cylinder assembly through an air pipe.
7. The ceramic roller heating composite device according to claim 1, characterized in that: the first motor assembly and the second motor assembly respectively comprise a motor, a speed reducer and a connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121098699.1U CN215418287U (en) | 2021-05-20 | 2021-05-20 | Ceramic roller heating composite device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121098699.1U CN215418287U (en) | 2021-05-20 | 2021-05-20 | Ceramic roller heating composite device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215418287U true CN215418287U (en) | 2022-01-04 |
Family
ID=79676423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121098699.1U Active CN215418287U (en) | 2021-05-20 | 2021-05-20 | Ceramic roller heating composite device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215418287U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020648A (en) * | 2022-04-21 | 2022-09-06 | 深圳吉阳智能科技有限公司 | Pole piece compounding device and pole piece compounding method |
-
2021
- 2021-05-20 CN CN202121098699.1U patent/CN215418287U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115020648A (en) * | 2022-04-21 | 2022-09-06 | 深圳吉阳智能科技有限公司 | Pole piece compounding device and pole piece compounding method |
| CN115020648B (en) * | 2022-04-21 | 2024-04-19 | 深圳吉阳智能科技有限公司 | Pole piece compounding device and pole piece compounding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101117189B (en) | Method for controlling conveying mechanism for conveying film | |
| CN215418287U (en) | Ceramic roller heating composite device | |
| CN102024980A (en) | Battery cell coiling device | |
| CN116022591A (en) | Battery cell rubberizing equipment and manufacturing method thereof | |
| CN212381485U (en) | Hot rolling film machine equipment | |
| CN215661909U (en) | Balance adjusting device for composite roller | |
| CN107900104A (en) | Electrodes of lithium-ion batteries collector foil shapes calendering device | |
| CN218498118U (en) | Square battery module locking device | |
| CN113725395B (en) | Current collector production device and production method | |
| CN115036582A (en) | Film laminating device and film laminating process for battery core | |
| CN201994378U (en) | Battery cell winding device | |
| CN212062612U (en) | Lamination equipment | |
| CN216288593U (en) | Cantilever type heating composite device | |
| CN220439675U (en) | Cell module positioning heating device | |
| CN208862009U (en) | A kind of photovoltaic module roll-in continuous producing apparatus | |
| WO2024016211A1 (en) | Electrode sheet manufacturing device | |
| CN221508257U (en) | Battery cell hot pressing device and battery production equipment | |
| CN218887228U (en) | Production equipment of solid-state battery cell pole piece | |
| CN218123491U (en) | Device for improving flatness of battery core | |
| CN218284115U (en) | High-efficiency fine ultrasonic hot-pressing spot welding device | |
| CN220604871U (en) | Offline battery cell module packing device | |
| CN211944000U (en) | Two-sided pad pasting device of heat insulating barrier | |
| CN218402969U (en) | Flattening device is used in polyimide film production | |
| CN216100421U (en) | Two-sided tectorial membrane device of copper sheet material | |
| CN218101395U (en) | Compound material roll sheet-making equipment of rubberizing after compound |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |