Non-contact type automatic air knife efficient demolding equipment of traction-free cold and hot roller press
By using a non-contact automatic air knife device with non-traction cold and hot roller presses, non-contact demolding of films is achieved by utilizing airflow peeling force, which solves the problem of scraper friction contamination and improves the purity of the film and production efficiency.
Patent Information
- Application Number
- CN202520046886.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-09
AI Technical Summary
During the demolding process of existing calenders, metal powder or polymer powder generated by the friction of the scraper contaminates the finished film, affecting product quality and performance.
The non-contact automatic air knife equipment using tractionless cold and hot roll presses utilizes two sets of symmetrically arranged calendering rolls and high-speed airflow peeling force to make the film detach from the roll surface. The airflow is controlled by solenoid valves to achieve non-contact demolding.
It avoids powder contamination caused by doctor blade friction, improves the purity and performance of the film, and enhances production efficiency and product quality, especially excelling in the production of optical and electronic packaging films.
Smart Images

Figure CN223719995U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a film stripping equipment field especially relates to a non contact type automatic air knife high -efficient film stripping equipment of no traction cold, hot roll press. BACKGROUND
[0002] In the film material preparation process, the calender is one of commonly used equipment, and the calender is used for processing material and realizing efficient stripping.
[0003] In order to control the film thickness precision, the roll of calender needs to be accurately controlled in the processing to ensure its surface flatness, and the smooth roll surface makes the film material difficult to fall off from the roll surface, thereby producing roll sticking, and once the film material roll sticking occurs, the uniformity of the film changes, so in most cases, the calender needs to be equipped with metal or high polymer scraper, which scrapes the film from the roll when the film sticks to the roll, but whether the metal scraper or the high polymer scraper, the roll produces friction in the work, and the metal powder or high polymer powder produced in the friction process pollutes the film product, affecting the quality and performance of the obtained product.
[0004] Therefore, in view of the problem that the existing device is mostly separated by scraper, whether the metal scraper or the high polymer scraper, the metal powder or high polymer powder produced in the friction process pollutes the film product, affecting the quality and performance of the obtained product, a non contact type automatic air knife high -efficient film stripping equipment of no traction cold, hot roll press can be designed. UTILITY MODEL CONTENTS
[0005] In order to overcome the problem that the existing device is mostly separated by scraper, whether the metal scraper or the high polymer scraper, the metal powder or high polymer powder produced in the friction process pollutes the film product, affecting the quality and performance of the obtained product.
[0006] The utility model discloses a technical scheme for a non-contact automatic high-efficiency air knife film stripping equipment for a cold and hot roller press without traction, which comprises a frame, a calender assembly and an air compressor.
[0007] Preferably, when the equipment is in operation, the material to be processed is first placed in the calender assembly inside the frame, the rollers and other components in the calender assembly start to rotate and interact under the drive of the power system, pressure is applied to the material, the material is pressed and spread between the rollers, and a film with a certain thickness is gradually formed. After the material is calendered into a film, the air compressor starts to work, it compresses air and delivers it to the shunt pipe through the airflow connection pipe, the shunt pipe uniformly distributes the compressed air to the two groups of electromagnetic valves, and the compressed air selectively enters the air injection pipe through the control of the electromagnetic valves. When the compressed air in the air injection pipe reaches a certain pressure and flow rate, it will be sprayed at high speed through the air blade, the high-speed airflow sprayed by the air blade acts on the film on the surface of the roller, and the film is stripped from the surface of the roller under the impact and stripping action of the airflow, thereby completing the processing and stripping process of the film.
[0008] Preferably, a chassis is installed at the bottom end of the frame, support columns are installed at the corners around the bottom end of the chassis, and a control console is installed near the edge of the frame on the outside.
[0009] Preferably, two groups of baffles are detachably installed on both sides of the frame, a calender groove is formed through the upper part of the outside of the baffle, and an auxiliary plate is installed at the top end of the inner wall of the calender groove.
[0010] Preferably, a lifting rod is symmetrically installed at the top end of the baffle, the movable end of the lifting rod penetrates the calender groove and is connected to the auxiliary plate, and a lighting lamp is installed at the top end of the frame.
[0011] Preferably, the calender assembly comprises calender rollers, the calender rollers are symmetrically arranged in two groups, a center shaft is installed at the center of each calender roller, one of the center shafts is hollow, and a rotary connection pipe is installed at the center of one end of the hollow center shaft.
[0012] Preferably, a heating box is installed at one end of the rotary connection pipe on the outside of the frame, and a heat conduction oil inlet pipe is installed at one end of the heating box.
[0013] Preferably, a coupling is installed at the other end of each of the two center shafts on the outside of the frame, a servo motor is connected and installed on one side of the coupling, and the output end of the servo motor is connected to the two center shafts through the coupling.
[0014] The utility model discloses the beneficial effects of: through two groups of symmetrical setting compression roller complete material compression film formation, the high -speed airflow of wind blade is accurate impact the film on the surface of roll, utilize the strong stripping force of airflow, make the film material rapidly and steadily from the roll part drop, electromagnetic valve can control the on -off and flow direction of airflow flexibly, can according to the material quality, thickness and roll pressure process parameter etc. of film, accurate regulation wind blade's air -jet state, ensure the consistency and stability of demolding effect, because adopt non - contact type air knife demolding, thoroughly avoid the pollution of metal powder or high polymer powder to film finished product that the scraper friction produces, make the product's purity improve greatly, film surface has no impurity adhesion, and the performance is excellent in optical performance, electrical performance etc., for example is used in optical film production, and the light transmittance is higher, and the haze is lower, is used in electronic packaging film, and the stability of electronic component is not affected by powder pollution, compared with the prior art that adopts scraper separation, the product quality greatly improves the problem caused by pollution, improves the market competitiveness of product, and the air knife demolding system responds rapidly, compared with the traditional scraper that needs frequent cleaning, adjusts scraper angle and replaces worn scraper etc. tedious operation, and the air knife demolding only needs to adjust electromagnetic valve parameters through the control panel to realize the demolding of different films quickly, and the operation is more simple and convenient, simultaneously, accurate compression assembly and convenient feeding design reduce the residence time of material in the equipment, and the overall production efficiency is significantly improved compared with the prior art, and higher economic benefits are created for enterprises. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 The utility model discloses a whole structure schematic diagram of a kind of non-contact automatic air knife high-efficiency demolding equipment of tractionless cold, hot roll press of the utility model shows;
[0016] Fig. 2 The utility model discloses a whole structure schematic diagram of a kind of non-contact automatic air knife high-efficiency demolding equipment of tractionless cold, hot roll press of the utility model shows;
[0017] Fig. 3 The utility model discloses a whole structure schematic diagram of a kind of non-contact automatic air knife high-efficiency demolding equipment of tractionless cold, hot roll press of the utility model shows;
[0018] Fig. 4 The utility model discloses a whole structure schematic diagram of a kind of non-contact automatic air knife high-efficiency demolding equipment of tractionless cold, hot roll press of the utility model shows.
[0019] Explanation of reference signs: 1, frame; 3, air compressor; 101, chassis; 102, support column; 103, control console; 104, light; 105, baffle; 106, calender groove; 107, lifting rod; 108, auxiliary plate; 201, heating box; 202, inlet heat oil pipe; 203, servo motor; 204, calender roll; 205, center shaft; 206, rotary connection pipe; 207, coupling; 301, air flow connection pipe; 302, shunt pipe; 303, electromagnetic valve; 304, gas injection pipe; 305, air knife. DETAILED DESCRIPTION
[0020] The utility model is further explained below in combination with the drawings and examples.
[0021] Please refer to Figs. 1-4 The utility model provides a kind of embodiment: a kind of non-contact automatic air knife high-efficiency demoulding equipment of cold, hot roll press without traction, comprising frame 1, calender assembly and air compressor 3;Frame 1 inside is equipped with the calender assembly for being pressed and spread into certain thickness film by the material to be processed, frame 1 side is communicated with air compressor 3 for the film material that falls off from the surface of roll, air compressor 3 side is communicated with air flow connection pipe 301, air flow connection pipe 301 one end is communicated with the installation of shunt pipe 302, shunt pipe 302 both ends are communicated with the installation of two groups of electromagnetic valve 303, each group of electromagnetic valve 303 upper and lower ends are communicated with two groups of gas injection pipe 304, each group of gas injection pipe 304 is communicated with the installation of air knife 305, when equipment runs, first, the material to be processed is placed in the calender assembly in the frame 1 interior, the roll and other components in calender assembly begin to rotate and interact under the drive of power system, pressure is exerted to material, and material is pressed and spread between roll, gradually form certain thickness film, after material is calendered into film, air compressor 3 starts to work, it compresses air and is delivered to shunt pipe 302 by air flow connection pipe 301, shunt pipe 302 evenly distributes compressed air into two groups of electromagnetic valve 303, by the control effect of electromagnetic valve 303, compressed air selectively enters gas injection pipe 304, when the compressed air in gas injection pipe 304 reaches certain pressure and flow, it will be high-speed ejected by air knife 305, the high-speed airflow of air knife 305 is acted on the film on the surface of roll, under the impact and stripping effect of airflow, film material falls off from the surface of roll, to complete the processing and falling-off process of film.
[0022] Please refer to Figs. 1-4In the embodiment, the bottom end of the frame 1 is provided with a chassis 101, the four corners of the bottom end of the chassis 101 are provided with support columns 102, and the outer side of the frame 1 close to one edge is provided with a control console 103. The chassis 101 installed at the bottom end of the frame 1 and the support columns 102 at the four corners of the bottom end of the chassis 101 provide a stable support foundation for the entire frame 1 structure, effectively dispersing the weight and pressure borne by the frame 1, reducing the shaking and tilting of the frame 1 during use, enhancing the stability and safety of the equipment. The outer two sides of the frame 1 are detachably provided with two groups of baffles 105, the outer upper part of the baffle 105 is provided with a calender groove 106, and the inner wall top of the calender groove 106 is provided with an auxiliary plate 108. The two groups of baffles 105 detachably installed on the outer two sides of the frame 1 can be installed or detached according to actual needs, providing effective blocking when protection is needed, and being convenient to detach to save space or perform other operations when not needed, increasing the flexibility of use. The auxiliary plate 108 installed at the inner wall top of the calender groove 106 can assist in positioning the processed object during calendering, preventing deformation or displacement of the object, and improving the quality and precision of calendering.
[0023] Please refer to Figs. 2-4 In the embodiment, the top end of the baffle 105 is symmetrically provided with a lifting rod 107, the movable end of the lifting rod 107 penetrates the calender groove 106 and is connected to the auxiliary plate 108, and the top end of the frame 1 is internally provided with a lighting lamp 104. The lifting rod 107 symmetrically installed at the top end of the baffle 105 can drive the auxiliary plate 108 to adjust the height, which enables the device to adapt to different sizes and shapes of workpieces for calendering operation, improving the versatility and applicability of the equipment. The lighting lamp 104 installed at the top end of the frame 1 can provide sufficient light for the inside of the frame 1, making it convenient for the operator to clearly observe the working condition and timely discover problems and make adjustments, thereby improving work efficiency and quality and reducing operation errors. The calendering assembly includes calendering rollers 204, which are symmetrically arranged. The center shaft 205 is hollow at one end and is connected to a rotating connection pipe 206 at the center. The symmetric arrangement of the calendering rollers 204 and the installation of the center shaft 205 ensure the stability and accuracy during calendering, which is helpful for precise molding of the workpiece.
[0024] Please refer to Figs. 1-3In the embodiment, one end of the rotary connecting pipe 206 is provided with a heating box 201 located outside the frame 1, one end of the heating box 201 is communicated and mounted with an inlet heat conducting oil pipe 202, and the heating box 201 mounted at one end of the rotary connecting pipe 206 can provide heating function for the calendering process. Through heating, the physical properties of the workpiece can be changed, which makes it easier to be calendered and molded, improves the quality and effect of calendering, the existence of the heating box 201 makes the control of the calendering temperature more accurate and stable, can be flexibly adjusted according to different workpiece materials and process requirements, ensures the consistency and reliability of the calendering, the other end of the two groups of center shafts 205 is mounted with a shaft coupling 207 located outside the frame 1, one side of the shaft coupling 207 is connected and mounted with a servo motor 203, the output end of the servo motor 203 is connected with the two groups of center shafts 205 through the shaft coupling 207, through the output end of the servo motor 203 connected with the two groups of center shafts 205 through the shaft coupling 207, the accurate driving and control of the calendering roller 204 can be realized, the speed and force of the calendering process are stable and accurate, the precision and quality of the calendering are improved, the servo motor 203 has good speed regulation performance, can flexibly adjust the rotating speed of the calendering roller 204 according to different calendering process requirements and workpiece materials, meets the diversified production demand.
[0025] In the process of working, the operator first carries the material to be processed to the equipment side, prepares to carry out the calendering processing, and the material enters the calendering assembly area in the frame 1 inside through the calendering groove 106 opened by the detachable baffle 105 on both sides outside the frame 1. The baffle 105 plays a role in guiding the material to enter, ensuring the processing accuracy. Two groups of servo motors 203 in the calendering assembly are started synchronously, and the output ends drive the center shaft 205 of the calendering roller 204 to rotate through the shaft coupling 207, so that the two groups of symmetrically arranged calendering rollers 204 rotate towards each other. At this time, if hot rolling is needed, the heating box 201 starts to work, the heat conducting oil enters the heating box 201 from the heat conducting oil inlet pipe 202, and the heating box 201 delivers the hot medium such as hot water or hot oil into the hollow center shaft 205 through the rotary connecting pipe 206, and then heats the calendering roller 204, so that the material is pressed and stretched under high temperature and high pressure. If there is no need to heat, the calendering roller 204 applies pressure to the material at room temperature. The material is repeatedly extruded and stretched between the two groups of calendering rollers 204, and gradually forms a thin film with a certain thickness that meets the requirements. The lighting lamp 104 installed at the top end inside the frame 1 provides sufficient illumination for the operation area, which is convenient for the operator to observe the calendering state of the material in real time. After the material is calendered into a thin film, the air compressor 3 starts to compress air, and the compressed air is transmitted to the shunt pipe 302 through the airflow connecting pipe 301. The shunt pipe 302 uniformly distributes the airflow to the two groups of electromagnetic valves 303 at both ends. The electromagnetic valves 303 selectively control the compressed air to enter the air injection pipe 304 according to the preset program or the operator's instruction, so that the compressed air is sprayed out at high speed from the air blade 305. The strong airflow sprayed from the air blade 305 impacts the thin film on the surface of the roller, and uses the stripping force of the airflow to efficiently strip the film material from the surface of the roller, completing the demolding process of the film. During the entire processing process, the chassis 101 at the bottom end of the frame 1 and the support column 102 at the corners around the frame 1 ensure the stable operation of the equipment, avoiding the influence of factors such as vibration on the processing accuracy. The operator can stand near the control console 103 on one side edge outside the frame 1, and conveniently control various parameters of the equipment through the control console 103, such as the speed of the servo motor 203 to adjust the rotating speed of the calendering roller 204, the temperature setting of the heating box 201, and the air pressure of the air compressor 3. It can also monitor the running state of the equipment in real time. At the same time, the lifting rod 107 at the top end of the baffle 105 can flexibly adjust the height of the auxiliary plate 108 according to the thickness of the material or the processing requirement. The auxiliary plate 108 plays a role in auxiliary support and guidance during the calendering process of the material, further ensuring the processing quality.
[0026] Through the above steps, when the device is running, first, the material to be processed is placed in the calendering assembly inside the frame 1, the roller and other components in the calendering assembly start to rotate and interact under the drive of the power system, and the material is pressed and spread between the rollers, gradually forming a film of a certain thickness. After the material is calendered into a film, the air compressor 3 starts to work, which compresses air and delivers it to the flow distribution pipe 302 through the air flow connection pipe 301. The flow distribution pipe 302 uniformly distributes the compressed air to the two groups of electromagnetic valves 303. Through the control action of the electromagnetic valves 303, the compressed air selectively enters the air injection pipe 304. When the compressed air in the air injection pipe 304 reaches a certain pressure and flow rate, it will be sprayed out at high speed through the air knife 305. The high-speed airflow sprayed by the air knife 305 acts on the film on the surface of the roller. Under the impact and stripping action of the airflow, the film material falls off from the surface of the roller, thereby completing the processing and falling off process of the film.
Claims
1. A non-contact automatic air knife high-efficiency stripping device for cold and hot roll presses without traction, comprising a frame (1); characterized in that: Also include a calender assembly and air compressor (3); frame (1) is internally mounted for the material to be processed by pressing spread into a certain thickness film calender assembly, frame (1) side is communicated with the air compressor (3) for the film material from the roll surface off the air compressor (3) side is communicated with the airflow connecting pipe (301), airflow connecting pipe (301) one end is communicated with the shunt pipe (302) is installed, both ends of the shunt pipe (302) are communicated with two groups of electromagnetic valve (303), each group of electromagnetic valve (303) upper and lower ends are communicated with two groups of gas injection pipe (304), each group of gas injection pipe (304) are communicated with the wind blade (305) is installed.
2. The non-contact automatic air knife high-efficiency stripping device of the cold and hot roll press without traction according to claim 1, characterized in that: Frame (1) bottom end are installed with the chassis (101), chassis (101) bottom end around the corner are installed with the support column (102), frame (1) outside near one side edge is installed with the control console (103).
3. The non-contact automatic air knife high-efficiency stripping device of the cold and hot roll press without traction according to claim 2, characterized in that: Frame (1) outside both sides are detachably installed with two groups of baffle (105), baffle (105) outside near the top are all through the calender groove (106) is set, the inner wall of calender groove (106) top are installed with the auxiliary plate (108).
4. The non-contact automatic air knife high-efficiency stripping device of the cold and hot roll press without traction according to claim 3, characterized in that: Baffle (105) top are symmetrically installed with the lifting rod (107), the movable end of lifting rod (107) penetrates the calender groove (106) and is connected to the auxiliary plate (108), frame (1) top is installed with the illuminating lamp (104).
5. The non-contact automatic air knife high-efficiency stripping device of the cold and hot roll press without traction according to claim 1, characterized in that: The calender assembly includes a calender roller (204), the calender roller (204) is two groups of symmetrically arranged, the center shaft (205) is installed at the center of the calender roller (204), one of the center shaft (205) is hollow, one end of the center shaft (205) is communicated and installed with the rotary connecting pipe (206).
6. The non-contact automatic air knife high-efficiency stripping device of the cold and hot roll press without traction according to claim 5, characterized in that: The rotary connecting pipe (206) one end is installed with the heating box (201) located outside the frame (1), the heating box (201) one end is communicated and installed with the inlet heat conducting oil pipe (202).
7. The non-contact automatic air knife high-efficiency stripping device of the cold and hot roll press without traction according to claim 5, characterized in that: The other end of the two groups of center shaft (205) are installed with the coupling (207) located outside the frame (1), the coupling (207) side is connected and installed with the servo motor (203), the output end of the servo motor (203) is connected with the two groups of center shaft (205) through the coupling (207).