Zero time switch protection film device

Abstract

The application relates to the technical field of steel plate film pasting, and discloses a zero-time switching protective film device which comprises a rack, a switching assembly, a tension roller assembly and a traction roller assembly. The zero-time switching protective film device can realize work station switching by triggering the rotation of a support driven by a first servo motor by 180 degrees to realize work station switching through a detector for real-time monitoring of the corresponding protective film roll surplus; hot melt adhesive is accurately sprayed on the old film by a glue outlet, and the old film is instantaneously cut off by a hot melt cutting knife driven by an electric sliding rail; the old film is adhered to the bottom of the standby film by an electric push rod driving an arc-shaped pressing plate, and the pressing flatness is ensured under the triple guidance of the connecting block, the sliding groove and the guide rod; meanwhile, the tension roller assembly and the guide roller assembly maintain the stability of the film belt tension, the second servo motor drives the traction roller body to keep the production line running at full speed; finally, the whole process is completed within <= seconds under the control of a single-chip microcomputer, zero downtime switching is realized, and the efficiency bottleneck of traditional production line film roll replacement is completely solved.

Description

Technical Field

[0001] This application relates to the field of steel plate film application technology, specifically a zero-time switching protective film device. Background Technology

[0002] Steel plate coating production line is a key piece of equipment in the metal processing field. It is mainly used to cover the surface of steel plates with a protective film to prevent scratches and corrosion during transportation, storage or processing.

[0003] In steel plate film lamination production lines, the machine needs to be stopped to replace the protective film rolls when they run out, causing the equipment to idle and waiting, which will result in a loss of production efficiency.

[0004] To address the equipment downtime issue during protective film replacement and achieve true zero-time switchover, thereby improving the continuous operation efficiency of the production line, a zero-time switchover protective film device is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a zero-time switching protective film device, which enables zero-time switching of protective film replacement, allowing equipment to operate continuously and solving the problems in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a zero-time switching protective film device, comprising a frame, a switching assembly, a tension roller assembly, and a traction roller assembly. The switching assembly includes a bracket rotatably mounted on the top of the frame. A first servo motor is fixedly connected to one side of the frame. The output shaft end of the first servo motor is fixedly connected to the rotating shaft end of the bracket. Film rolls are installed on both sides of the bracket, and detectors are installed at both ends of the bracket. The positions of the two detectors correspond to the positions of the two film rolls, respectively.

[0007] An electric slide rail is fixedly connected to the center of the bracket. An adapter slider is installed on the inner wall of the electric slide rail. A hot melt cutting blade is installed on the upper and lower surfaces of the adapter slider. Two symmetrical glue storage boxes are fixedly connected to the outer surface of the bracket. A glue dispensing head is installed on one side of each glue storage box. An electric push rod is fixedly connected to the bottom of the frame. An arc-shaped pressing plate is fixedly connected to the output end of the electric push rod.

[0008] With the above scheme, when the detector detects that the remaining amount of the corresponding protective film roll is insufficient, the controller starts the first servo motor to drive the bracket to rotate 180°, so that the spare film roll is switched to the working position; at the same time, the corresponding glue dispensing head is started to spray glue onto the protective film below. Then, the electric slide rail drives the adapter slider to move, so that the corresponding hot melt cutting blade accurately cuts the old film strip. Then, the electric push rod is started to make the arc-shaped pressing plate receive the cut and glued old film, and then push the old film to the bottom of the spare film and press it together to achieve the bonding of the old film and the spare film. In this way, the effect of zero-time switching can be achieved.

[0009] Furthermore, the tension roller assembly is mounted above the front end of the frame, and two staggered guide roller assemblies are mounted below the tension roller assembly.

[0010] The above scheme allows the tension roller assembly to monitor the tension fluctuation of the film belt in real time, and forms an S-shaped path through two sets of staggered guide roller assemblies to eliminate film belt slack during switching.

[0011] Furthermore, the traction roller assembly is installed below the front end of the frame. The traction roller assembly includes a traction roller body installed at the front end of the frame. A second servo motor is fixedly connected to the outer surface of the frame, and the output shaft end of the second servo motor is fixedly connected to the rotating shaft end of the traction roller body.

[0012] With the above scheme, the second servo motor drives the traction roller body to maintain a constant linear speed, ensuring that there is no speed reduction in transmission during the switching process.

[0013] Furthermore, a controller and a microcontroller are mounted on one side of the frame. The controller is electrically connected to the microcontroller, and the electrical components inside the switching assembly, tension roller assembly, and traction roller assembly are all electrically connected to the microcontroller.

[0014] With the above solution, the microcontroller has a pre-set switching program that receives the detector signal, triggers the bracket to rotate, starts the glue application process, controls the corresponding hot melt cutting blade to move, and drives the arc-shaped pressing plate to move up to bond the protective film. The entire process has a short response time.

[0015] Furthermore, a protective film roll is installed on the outer surface of each of the film rolls, and the shape of the arc-shaped pressing plate is adapted to the shape of the protective film roll.

[0016] The above method ensures that the radius of curvature of the arc-shaped pressing plate matches the outer diameter of the protective film roll, thus ensuring uniform stress and no wrinkles during pressing and optimizing the quality of bonding and pressing.

[0017] Furthermore, each of the glue storage boxes is equipped with a glue replenishing tube on its exterior, and the output end of the glue replenishing tube is connected to the interior of the glue storage box.

[0018] The above method allows for the metered injection of hot melt adhesive into the adhesive storage box via the glue filling tube. After the adhesive outlet rotates 180° on the support, it extrudes a strip of adhesive onto the upper surface of the old film, facilitating the subsequent bonding work between the old film and the spare film.

[0019] Furthermore, the two dispensing heads have opposite orientations at their output ends.

[0020] The above solution allows for flexible handling of the bracket's rotation and ensures proper matching with the protective film rolls on the two film rolls, thus optimizing the actual performance.

[0021] Furthermore, a connecting block is fixedly connected to one side of the arc-shaped pressing plate, a sliding groove is provided on the inner wall of the frame, a guide rod is installed on the inner wall of the sliding groove, the connecting block is slidably sleeved on the inner wall of the sliding groove, and the inner wall of the connecting block is slidably sleeved on the outer surface of the guide rod.

[0022] The above scheme, with its connecting block, slide, and guide rod working together, enables stable movement of the arc-shaped pressing plate, thus ensuring the pressing operation.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This zero-time protective film switching device monitors the remaining amount of the corresponding protective film roll in real time through a detector, triggering the first servo motor to drive the bracket to rotate 180° to achieve station switching; hot melt adhesive is precisely sprayed onto the old film using an adhesive dispensing head, and the old film is instantly cut by a hot melt cutting blade driven by an electric slide rail; an electric push rod pushes an arc-shaped pressing plate to bond the old film to the bottom of the spare film, and the flatness of the pressing is ensured by the triple guidance of the connecting block, slide groove and guide rod; at the same time, the tension roller assembly and guide roller assembly maintain the film belt tension stability, and the second servo motor drives the traction roller body to keep the production line running at full speed; finally, the entire process is completed within ≤ seconds by a single-chip microcomputer, achieving zero-downtime switching and completely solving the efficiency bottleneck of changing film rolls in traditional production lines. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall front view of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the overall bottom view of the structure of this application;

[0027] Figure 3 This is a partial side view of the structure of this application;

[0028] Figure 4 This is a side view of the structure of this application.

[0029] Figure 5 This is a partial top view of the structure of this application.

[0030] In the picture:

[0031] 1. Frame; 2. Switching assembly; 201. Support; 202. First servo motor; 203. Film roll; 204. Protective film roll; 205. Detector; 206. Electric slide rail; 207. Adaptor slider; 208. Hot melt cutting blade; 209. Glue storage box; 210. Glue dispensing head; 211. Glue replenishing tube; 212. Electric push rod; 213. Arc-shaped pressing plate; 214. Connecting block; 215. Slide groove; 216. Guide rod; 3. Tension roller assembly; 4. Guide roller assembly; 5. Traction roller assembly; 501. Traction roller body; 502. Second servo motor; 6. Controller; 7. Microcontroller. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a zero-time switching protective film device includes a frame 1, a switching component 2, a tension roller component 3, and a traction roller component 5. The switching component 2 includes a bracket 201 rotatably mounted on the top of the frame 1. A first servo motor 202 is fixedly connected to one side of the frame 1. The output shaft end of the first servo motor 202 is fixedly connected to the rotating shaft end of the bracket 201. Film rolls 203 are installed on both sides of the bracket 201. A protective film roll 204 is installed on the outer surface of each film roll 203. Detectors 205 are installed at both ends of the bracket 201. The positions of the two detectors 205 correspond to the positions of the two film rolls 203. When the first servo motor 202 is started, it will drive the bracket 201 to rotate. The position of the two film rolls 203 can be adjusted by rotating the bracket 201. The position of the front film roll 203 is the working position, and the position of the rear film roll 203 is the standby position.

[0034] Please see Figure 3 , Figure 4 and Figure 5An electric slide rail 206 is fixedly connected to the center of the bracket 201. An adapter slider 207 is installed on the inner wall of the electric slide rail 206. Hot melt cutting blades 208 are installed on both the upper and lower surfaces of the adapter slider 207. Two symmetrical glue storage boxes 209 are fixedly connected to the outer surface of the bracket 201. Each glue storage box 209 has a glue dispensing head 210 installed on one side, with the output ends of the two dispensing heads 210 facing opposite directions. This design allows for flexible adaptation to the rotation of the bracket 201 and facilitates matching with the protective film rolls 204 on the two film rolls 203, optimizing the actual usage effect. A glue filling tube 211 is installed on the outside of each glue storage box 209. The output end of the glue filling tube 211 is connected to the inside of the glue storage box 209. The glue filling tube 211 injects a measured amount of hot melt adhesive into the glue storage box 209. After the bracket 201 rotates 180°, the glue dispensing head 210 extrudes a strip of adhesive onto the upper surface of the old film, facilitating subsequent bonding between the old film and the spare film.

[0035] Please see Figure 3 , Figure 4 and Figure 5 An electric push rod 212 is fixedly connected to the bottom of the frame 1. An arc-shaped pressing plate 213 is fixedly connected to the output end of the electric push rod 212. A connecting block 214 is fixedly connected to one side of the arc-shaped pressing plate 213. A sliding groove 215 is opened on the inner wall of the frame 1. A guide rod 216 is installed on the inner wall of the sliding groove 215. The connecting block 214 is slidably sleeved on the inner wall of the sliding groove 215. The inner wall of the connecting block 214 is slidably sleeved on the outer surface of the guide rod 216. The connecting block 214, the sliding groove 215 and the guide rod 216 cooperate with each other to realize the stable movement of the arc-shaped pressing plate 213, thereby ensuring the pressing work.

[0036] Please see Figure 1 and Figure 2 Tension roller assembly 3 is installed above the front end of frame 1. Two staggered guide roller assemblies 4 are installed below tension roller assembly 3. Tension roller assembly 3 monitors the tension fluctuation of the film belt in real time. An S-shaped path is formed by the two staggered guide roller assemblies 4 to eliminate film belt slack during switching. Traction roller assembly 5 is installed below the front end of frame 1. Traction roller assembly 5 includes traction roller body 501 installed at the front end of frame 1. A second servo motor 502 is fixedly connected to the outer surface of frame 1. The output shaft end of the second servo motor 502 is fixedly connected to the rotating shaft end of traction roller body 501. The second servo motor 502 drives traction roller body 501 to maintain a constant linear speed to ensure that there is no speed reduction in transmission during switching.

[0037] Please see Figure 1 , Figure 3 and Figure 4A controller 6 and a microcontroller 7 are installed on one side of the frame 1. The controller 6 is electrically connected to the microcontroller 7. The electrical components inside the switching assembly 2, tension roller assembly 3, and traction roller assembly 5 are all electrically connected to the microcontroller 7. The microcontroller 7 has a preset switching program that receives a signal from the detector 205, triggers the bracket 201 to rotate, starts the glue application process, controls the corresponding hot melt cutting blade 208 to move, and drives the arc-shaped pressing plate 213 to move upward to bond the protective film. The entire process has a short response time. The shape of the arc-shaped pressing plate 213 is adapted to the shape of the protective film roll 204, and the radius of curvature of the arc-shaped pressing plate 213 matches the outer diameter of the protective film roll 204, ensuring uniform force and no wrinkles during pressing, thus optimizing the quality of bonding and pressing.

[0038] In this embodiment, a zero-time switching protective film device monitors the remaining amount of the corresponding protective film roll 204 in real time through a detector 205, triggering a first servo motor 202 to drive the bracket 201 to rotate 180° to achieve a workstation switch. Hot melt adhesive is precisely sprayed onto the old film using an adhesive dispensing head 210, and the old film is instantly cut by a hot melt cutting blade 208 driven by an electric slide rail 206. An electric push rod 212 pushes an arc-shaped pressing plate 213 to bond the old film to the bottom of the spare film, ensuring the flatness of the pressing under the triple guidance of the connecting block 214, the slide groove 215, and the guide rod 216. At the same time, the tension roller assembly 3 and the guide roller assembly 4 maintain stable film belt tension, and the second servo motor 502 drives the traction roller body 501 to keep the production line running at full speed. Finally, the entire process is controlled by a single-chip microcomputer 7 and completed within ≤2 seconds, achieving zero-downtime switching and completely solving the efficiency bottleneck of changing film rolls in traditional production lines.

[0039] The working principle of the above embodiment is as follows: When the detector 205 detects that the remaining amount of the corresponding protective film roll 204 is insufficient, the controller 6 instructs the microcontroller 7 to start the switching program; firstly, the first servo motor 202 drives the bracket 201 to rotate 180°, accurately positioning the protective film roll 204 at the other end of the bracket 201 to the working position. At the same time, the rotation triggers the corresponding glue dispensing head 210 to spray hot melt adhesive onto the surface of the running old film strip, and the amount of adhesive is replenished in real time from the glue replenishment tube 211 to the glue storage box 209; then the electric slide rail 206 drives the adapter slider 207 to move, so that the corresponding hot melt cutting blade 208. The old film strip is instantly cut off. At this time, the electric push rod 212 pushes the arc-shaped pressing plate 213 upward, which slides along the slide groove 215 through the connecting block 214 and is prevented from deflection by the guide rod 216. The cut old film strip is pressed to the bottom of the upper protective film roll 204, and the new and old film strips are bonded with high strength using pre-applied hot melt adhesive. During this process, the tension roller assembly 3, together with the staggered guide roller assembly 4, forms an S-shaped path to dynamically absorb the impact force and maintain the stability of the film strip tension. At the same time, the second servo motor 502 drives the traction roller body 501 to maintain the full speed of the production line and ensure zero speed reduction in transmission. The entire switching process is completed within ≤2 seconds under the timing control of the single-chip microcomputer 7, realizing seamless splicing of the protective film.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zero time switch protection film device comprising a frame (1), a switching assembly (2), a tension roller assembly (3) and a pulling roller assembly (5), characterized in that: The switching assembly (2) includes a bracket (201) rotatably mounted on the top of the frame (1). A first servo motor (202) is fixedly connected to one side of the frame (1). The output shaft end of the first servo motor (202) is fixedly connected to the rotating shaft end of the bracket (201). Membrane rolls (203) are installed on both sides of the bracket (201). Detectors (205) are installed at both ends of the bracket (201). The positions of the two detectors (205) correspond to the positions of the two membrane rolls (203). An electric slide rail (206) is fixedly connected to the center of the bracket (201). An adapter slider (207) is installed on the inner wall of the electric slide rail (206). A hot melt cutting blade (208) is installed on the upper and bottom surfaces of the adapter slider (207). Two symmetrical glue storage boxes (209) are fixedly connected to the outer surface of the bracket (201). A glue dispensing head (210) is installed on one side of each glue storage box (209). An electric push rod (212) is fixedly connected to the bottom of the frame (1). An arc-shaped pressing plate (213) is fixedly connected to the output end of the electric push rod (212).

2. A zero-switching time protection film device according to claim 1, characterized in that: The tension roller assembly (3) is installed above the front end of the frame (1), and two staggered guide roller assemblies (4) are installed below the tension roller assembly (3).

3. A zero-switching time protective film device according to claim 1, wherein: The traction roller assembly (5) is installed below the front end of the frame (1). The traction roller assembly (5) includes a traction roller body (501) installed at the front end of the frame (1). A second servo motor (502) is fixedly connected to the outer surface of the frame (1). The output shaft end of the second servo motor (502) is fixedly connected to the rotating shaft end of the traction roller body (501).

4. A zero-switching time protection film device according to claim 1, wherein: A controller (6) and a microcontroller (7) are mounted on one side of the frame (1). The controller (6) is electrically connected to the microcontroller (7). The electrical components inside the switching assembly (2), tension roller assembly (3), and traction roller assembly (5) are all electrically connected to the microcontroller (7).

5. A zero-switching time protection film device according to claim 1, wherein: Each of the membrane rolls (203) has a protective membrane roll (204) mounted on its outer surface, and the shape of the arc-shaped pressing plate (213) is adapted to the shape of the protective membrane roll (204).

6. A zero-switching time protection film device according to claim 1, wherein: Each of the glue storage boxes (209) is equipped with a glue supply tube (211) on the outside, and the output end of the glue supply tube (211) is connected to the inside of the glue storage box (209).

7. A zero-switching time protective film device according to claim 1, wherein: The two dispensing heads (210) have their output ends facing opposite directions.

8. A zero-switching time protection film device according to claim 1, wherein: A connecting block (214) is fixedly connected to one side of the arc-shaped pressing plate (213). A sliding groove (215) is provided on the inner wall of the frame (1). A guide rod (216) is installed on the inner wall of the sliding groove (215). The connecting block (214) is slidably sleeved on the inner wall of the sliding groove (215). The inner wall of the connecting block (214) is slidably sleeved on the outer surface of the guide rod (216).

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