PVC functional film production conveying device

Abstract

The invention provides a PVC functional film production conveying device which comprises a support, at least two first rollers are rotatably installed on the support, and the first rollers are symmetrically installed on the support; at least two second rollers are rotatably mounted on the bracket, the second rollers are symmetrically mounted on the bracket, and a driving mechanism for driving the first rollers and the second rollers to rotate is mounted on the bracket; and the clamping mechanism is mounted at the bottom of the inner side of the bracket and is used for clamping a film to enable the film to be tightly attached to the first roller. Air is injected into a first box body through a first pipeline by a first air pump, then the air is injected into flow channels, the outer surface of a film is impacted through the opening positions of the flow channels, dust on the outer surface of the film conveyed to the opening positions is blown down, and the film is cleaned; air enters the flow channels on the two sides after being injected, and the outer surface of the membrane is cleaned twice in sequence.

Description

Technical Field

[0001] This invention relates to the field of membrane production technology, and in particular to a conveying device for the production of PVC functional membranes. Background Technology

[0002] PVC film uses polyvinyl chloride resin as its main component and incorporates a series of functional additives such as plasticizers, stabilizers, and lubricants. It is carefully crafted through precise calendering or blow molding processes. In terms of transparency, it outperforms polyethylene and polypropylene, but is slightly inferior to polystyrene.

[0003] In the membrane manufacturing process, the conveying stage is crucial, requiring the membrane to be accurately transported to the winding or cutting position. To ensure the membrane remains flat throughout the conveying process for smooth subsequent processing, numerous movable rollers are used. However, during membrane processing and conveying, its outer surface often attracts dust due to static electricity or its large surface area. If this dust is not cleaned promptly, it will remain on the membrane during subsequent winding or processing, affecting not only the membrane's appearance but also potentially embedding into the membrane during winding, causing deformation of the outer surface and, in severe cases, even membrane damage. Furthermore, due to variations in membrane thickness, when conveying thinner membranes, the movable rollers are prone to slipping against the outer surface of the membrane, thus affecting conveying efficiency. Therefore, a device is needed to address these issues. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a PVC functional film production conveying device.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A PVC functional film production conveying device includes: a support frame, on which at least two first rollers are rotatably mounted, symmetrically mounted on the support frame; a second roller, also rotatably mounted on the support frame, symmetrically mounted on the support frame; a drive mechanism for rotating the first and second rollers; a clamping mechanism installed on the bottom inner side of the support frame for clamping the film and keeping it tightly against the first rollers; a third and fourth roller rotatably mounted on the support frame, the third and fourth rollers being located in the same vertical plane; a housing installed inside the support frame; an airflow channel opened inside the housing for air circulation, the airflow channel being open near the third and fourth rollers; an injection mechanism for injecting air into the airflow channel installed on the housing; and a collection mechanism installed on the other side of the housing for collecting dust after cleaning. When the film passes over the outside of the third and fourth rollers, the injection mechanism injects air into the airflow channel, impacting the outer surface of the film at the opening of the airflow channel, washing off the dust on the film, and then the air mixed with dust is discharged through the other side of the airflow channel.

[0006] Preferably, there are two flow channels, which are arranged symmetrically in the upper and lower parts of the housing. After air is injected, it enters the flow channels on both sides respectively to clean the outer surface of the membrane twice, thereby improving the cleaning effect.

[0007] Preferably, the driving mechanism includes a motor mounted on a bracket, the output end of which is mounted on a first roller for driving the first roller to rotate; a transmission assembly is installed between the first roller and the second roller; it also includes a first gear rotatably mounted on the outside of the bracket; a second gear is mounted on the transmission assembly, the first gear meshing with the second gear for linkage between the transmission assemblies on both sides; the motor drives the first roller to rotate, synchronously drives the second roller to rotate through the transmission assembly, and drives adjacent transmission assemblies to rotate through the engagement of the first gear and the second gear, thus driving all the first rollers and the second roller to rotate.

[0008] Preferably, the transmission assembly includes a transmission wheel and a transmission belt; there are two transmission wheels, which are coaxially mounted with the first roller and the second roller respectively; the transmission belt is sleeved on the outside of the two transmission wheels for linkage between the two transmission wheels.

[0009] Preferably, the clamping mechanism includes an electric push rod installed at the bottom of the inner side of the bracket, and a support plate installed on the top of the electric push rod; columns are symmetrically installed on the top of the support plate, and pressure rollers for squeezing the film are rotatably installed on the columns. The pressure rollers are in the same vertical plane as the first roller. The support plate is driven to move upward by the electric push rod, and the pressure rollers are driven to move upward synchronously until they cooperate with the first roller to clamp the film, so that the first roller is tightly attached to the film.

[0010] Preferably, the injection mechanism includes a first housing mounted on the housing, with the air inlet of the flow channel located inside the first housing; a first air pump is mounted on the bracket; a first pipe is mounted on the air outlet of the first air pump, and the first pipe is fixedly inserted into the interior of the first housing; the first air pump injects air into the interior of the first housing through the first pipe, thereby injecting air into the flow channel.

[0011] Preferably, the collection mechanism includes a second box mounted on the housing, with the exhaust end of the flow channel located inside the second box; a third box mounted on the support; a second pipe mounted on the second box, the second pipe being fixedly inserted into the interior of the third box; a second air pump mounted at the bottom of the third box, the air inlet of the second air pump extending through the pipe into the interior of the third box for extracting air from the interior of the third box; a sealing cover mounted on the side of the third box away from the support; a fixing component for fixing the position of the sealing cover mounted between the sealing cover and the third box; a sealing rubber gasket mounted on the contact surface between the third box and the sealing cover for sealing the contact position between the third box and the sealing cover; a dustproof mesh box mounted on the sealing cover; when the sealing cover is fixed on the third box, the dustproof mesh box is located between the second pipe and the second air pump, and the outer wall of the dustproof mesh box is tightly attached to the inner wall of the third box.

[0012] Preferably, the sealing rubber gasket is fixed on any surface of the contact surface between the third box and the sealing cover.

[0013] Preferably, the fixing component includes permanent magnets, which are symmetrically installed on both sides of the third box and both sides of the sealing cover. The permanent magnets on the sealing cover and the permanent magnets on the third box attract each other, thereby fixing the position of the sealing cover by magnetic force.

[0014] Preferably, it also includes a rotatable guide roller mounted on the bracket, the membrane bypassing the guide roller, the guide roller adjusting the position of the membrane to prevent the membrane from contacting the housing, the first box and the second box during transport.

[0015] Compared with the prior art, the beneficial effects of the present invention include: 1. Air is injected into the first housing through the first pipe by the first air pump. The air is then injected into the flow channel and impacts the outer surface of the membrane through the flow channel opening, blowing off the dust on the outer surface of the membrane that has been delivered there, thus cleaning the membrane. There are two flow channels, which are arranged symmetrically in the upper and lower parts of the housing. After the air is injected, it enters the flow channels on both sides respectively, cleaning the outer surface of the membrane twice in succession, thereby improving the cleaning effect.

[0016] 2. The support plate is driven to move up by the electric push rod, which in turn drives the pressure roller to move up until it clamps the film with the first roller, so that the first roller is tightly attached to the film. When the first roller rotates, the film moves with the first roller under the action of friction, which prevents slippage caused by poor adhesion. At the same time, the movement distance of the pressure roller is controlled to facilitate the clamping and fixing of films of different thicknesses.

[0017] 3. The first roller is driven to rotate by a motor, the second roller is driven to rotate synchronously by a transmission assembly, and the adjacent transmission assembly is driven to rotate by the cooperation of the first gear and the second gear. In this way, all the first rollers and the second rollers are driven to rotate. By setting the first gear, the first rollers and the second rollers on both sides can perform the conveying work synchronously and in the same direction, which reduces the number of power components and simplifies the structure of the device. Attached Figure Description

[0018] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the structure of a PVC functional film production conveying device proposed in this invention; Figure 2 This is a side view of a PVC functional film production conveying device proposed in this invention; Figure 3 This is a first cross-sectional view of a PVC functional film production conveying device proposed in this invention; Figure 4 This is a second cross-sectional view of a PVC functional film production conveying device proposed in this invention; Figure 5 This is a front view of a PVC functional film production conveying device proposed in this invention; Figure 6 For the appendix Figure 2 Enlarged view of point A in the middle; Figure 7 For the appendix Figure 3 Enlarged view of point B in the middle; Figure 8 For the appendix Figure 4 Enlarged view of point C in the middle; Labels in the diagram: 1. Support; 2. First roller; 3. Motor; 4. Transmission assembly; 5. Second roller; 6. Electric push rod; 7. First gear; 8. Second gear; 9. Column; 10. Support plate; 11. Pressure roller; 12. Third roller; 13. Fourth roller; 14. Housing; 15. Directional roller; 16. First box; 17. Flow channel; 18. Second box; 19. First air pump; 20. First pipe; 21. Third box; 22. Sealing cover; 23. Permanent magnet; 24. Second air pump; 25. Second pipe; 26. Sealing rubber gasket; 27. Dustproof mesh box. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] According to one embodiment of the present invention, Figures 1-8 As shown.

[0021] A PVC functional film production conveying device, the specific structure of which is as follows: The device is equipped with a U-shaped support 1, on which at least two first rollers 2 are rotatably mounted via bearings, and these first rollers 2 are symmetrically distributed on the support 1. Similarly, at least two second rollers 5 are also rotatably mounted on the support 1 via bearings, and they are also symmetrically distributed. On one side of the support 1, a drive mechanism is installed to drive the first rollers 2 and the second rollers 5 to rotate. In addition, a clamping mechanism is provided on the inner bottom of the support 1 to clamp the film and make it adhere tightly to the first rollers 2.

[0022] A third roller 12 and a fourth roller 13 are rotatably mounted on the support 1 via bearings, and these two rollers are located in the same vertical plane. A housing 14 is bolted to the inside of the support 1, and a flow channel 17 is provided inside the housing 14 for air circulation. The flow channel 17 is open on the side near the third roller 12 and the fourth roller 13. An injection mechanism is installed on one side of the housing 14 for injecting air into the flow channel 17; a collection mechanism is installed on the other side for collecting the dust after cleaning. When the membrane passes over the outside of the third roller 12 and the fourth roller 13, the injection mechanism injects air into the flow channel 17. The air impacts the outer surface of the membrane at the opening of the flow channel 17, washing off the dust on the membrane. Then, the air mixed with dust is discharged through the other side of the flow channel 17.

[0023] Specifically, there are two flow channels 17, which are symmetrically distributed vertically within the housing 14. After air is injected, it enters the flow channels 17 on both sides respectively, cleaning the outer surface of the membrane twice, thereby improving the cleaning effect.

[0024] In this embodiment, the drive mechanism includes a motor 3 fixed to the bracket 1 by a mounting bracket and bolts. The output end of the motor 3 is connected to the first roller 2 via a connecting shaft, and is used to drive the first roller 2 to rotate. A transmission assembly 4 is installed between the first roller 2 and the second roller 5. In addition, a first gear 7 is rotatably mounted on the outside of the bracket 1 via bearings, and a second gear 8 is mounted on the transmission assembly 4. The first gear 7 and the second gear 8 mesh with each other to realize the linkage of the two transmission assemblies 4. When the motor 3 drives the first roller 2 to rotate, it synchronously drives the second roller 5 to rotate through the transmission assembly 4, and drives the adjacent transmission assembly 4 to rotate through the cooperation of the first gear 7 and the second gear 8, thereby driving all the first roller 2 and the second roller 5 to rotate.

[0025] Specifically, the transmission assembly 4 includes transmission wheels and a transmission belt. There are two transmission wheels, coaxially mounted with the first roller 2 and the second roller 5 respectively. The transmission belt is fitted over the outside of the two transmission wheels to link them. The second gear 8 is coaxially mounted with the transmission wheels.

[0026] In this embodiment, the clamping mechanism includes an electric push rod 6 fixed to the bottom inner side of the support 1 by a mounting bracket and bolts. A support plate 10 is bolted to the top of the electric push rod 6. At least one electric push rod 6 is provided; if only one is provided, it is located at the bottom center of the support plate 10. Preferably, four electric push rods 6 are provided, located at the four corners of the bottom of the support plate 10 to share the weight of the support plate 10. Columns 9 are symmetrically welded to the top of the support plate 10, and pressure rollers 11 for extruding the film are rotatably mounted on the columns 9 via bearings. The pressure rollers 11 and the first roller 2 are in the same vertical plane. By driving the support plate 10 upward by the electric push rod 6, the pressure rollers 11 can be driven upward synchronously until the pressure rollers 11 cooperate with the first roller 2 to clamp the film, making the film adhere tightly to the first roller 2, facilitating film transfer.

[0027] In this embodiment, the injection mechanism includes a first housing 16 welded and fixed to the housing 14, with the air inlet of the flow channel 17 located inside the first housing 16. A first air pump 19 is mounted on the bracket 1 via a mounting bracket and bolts. The air outlet of the first air pump 19 is connected to a first pipe 20 via a connecting valve, and the first pipe 20 is fixedly inserted into the interior of the first housing 16. A filter screen is installed at the air intake end of the first air pump 19. The first air pump 19 injects air into the interior of the first housing 16 through the first pipe 20, thereby injecting air into the flow channel 17.

[0028] In this embodiment, the collection mechanism includes a second box 18 welded and fixed to the housing 14, with the exhaust end of the flow channel 17 located inside the second box 18. A third box 21 is fixed to the bracket 1 by bolts. A second pipe 25 is embedded and fixed to one side of the second box 18, and the second pipe 25 is fixedly inserted into the interior of the third box 21. A second air pump 24 is mounted on the bottom of the third box 21 by a mounting bracket, and the air inlet of the second air pump 24 extends into the interior of the third box 21 through a pipe for extracting air from the interior of the third box 21. A sealing cover 22 is slidably mounted on the side of the third box 21 away from the bracket 1. A fixing component for fixing the position of the sealing cover 22 is installed between the sealing cover 22 and the third box 21. A sealing rubber gasket 26 is bonded and fixed to the contact surface between the third box 21 and the sealing cover 22 for sealing the contact position between the two, and the sealing rubber gasket 26 can be fixed on either side of the contact surface. A dustproof mesh box 27 is bolted to one side of the sealing cover 22. The filter holes of the dustproof mesh box 27 are 300-500 mesh. When the sealing cover 22 is fixed to the third box 21, the dustproof mesh box 27 is located between the second pipe 25 and the second air pump 24, and its outer wall is tightly attached to the inner wall of the third box 21. After the second air pump 24 is started, it will draw out the air inside the third box 21, creating a negative pressure inside the third box 21. This allows air to be drawn in from the second box 18 through the second pipe 25, creating a negative pressure inside the second box 18 as well. In this way, the air blown in by the first box 16 will be drawn in by the second box 18, then injected into the third box 21, and finally discharged by the second air pump 24, forming a cycle.

[0029] Specifically, the fixing component includes permanent magnets 23, which are symmetrically embedded and fixed on both sides of the third box 21 and both sides of the sealing cover 22. The permanent magnets 23 on the sealing cover 22 and the permanent magnets 23 on the third box 21 attract each other, and the position of the sealing cover 22 is fixed by magnetic force.

[0030] Furthermore, the device in this embodiment also includes a guide roller 15 rotatably mounted on the bracket 1 via bearings. The membrane passes around the guide roller 15, and the position of the membrane is adjusted by the guide roller 15 to prevent the membrane from contacting the housing 14, the first box 16, and the second box 18 during transport.

[0031] Working principle: When in use, the membrane is wrapped around the first roller 2 and the second roller 5 on one side, then around the third roller 12, the turning roller 15 and the fourth roller 13, and finally out through the first roller 2 and the second roller 5 on the other side; Then, the electric push rod 6 is activated to drive the support plate 10 to move upward, and the pressure roller 11 is driven to move upward until it cooperates with the first roller 2 to clamp the film, so that the first roller 2 is tightly attached to the film; Then start motor 3. Motor 3 drives the first roller 2 to rotate, and drives the second roller 5 to rotate synchronously through transmission component 4. In addition, the first gear 7 and the second gear 8 cooperate to drive the adjacent transmission component 4 to rotate. In this way, all the first rollers 2 and the second rollers 5 are driven to rotate, thus driving the film to move and carry out the conveying work. During membrane transport, the first air pump 19 and the second air pump 24 are started simultaneously. The first air pump 19 injects air into the first housing 16 through the first pipe 20, and then the air is injected into the flow channel 17. The air impacts the outer surface of the membrane through the opening of the flow channel 17, blowing off the dust on the outer surface of the membrane that has been transported there. After being blown off, the air carrying the dust is sucked into the second housing 18, and then injected into the third housing 21 through the second pipe 25. After being filtered by the dustproof mesh box 27, it is discharged by the second air pump 24. This cycle is repeated to clean the outer surface of the membrane. The dust remains inside the dustproof mesh box 27. The sealing cover 22 is removed periodically, and then the dustproof mesh box 27 is cleaned to ensure the air permeability of the dustproof mesh box 27 during long-term use.

[0032] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A PVC functional film production conveying device, comprising: A bracket, on which a first roller is rotatably mounted, wherein at least two first rollers are symmetrically mounted on the bracket; and on which a second roller is rotatably mounted, wherein at least two second rollers are symmetrically mounted on the bracket, characterized in that a drive mechanism for driving the first roller and the second roller to rotate is mounted on the bracket; It also includes a clamping mechanism installed at the bottom inner side of the bracket for clamping the film so that the film is tightly attached to the first roller; It also includes a third roller and a fourth roller that are rotatably mounted on the bracket, the third roller and the fourth roller being located in the same vertical plane; A housing is installed on the inner side of the bracket; The inner side of the housing is provided with a flow channel for air circulation, and the flow channel is open on the side near the third roller and the fourth roller. An injection mechanism for injecting air into the flow channel is installed on the housing; It also includes a collection mechanism installed on the other side of the housing for collecting dust after cleaning; As the membrane passes over the outside of the third and fourth rollers, the injection mechanism injects air into the flow channel, impacting the outer surface of the membrane at the flow channel opening, washing away dust on the membrane, and then the air mixed with dust is discharged through the other side of the flow channel.

2. The PVC functional film production conveying device according to claim 1, characterized in that, The flow channel has two openings, which are arranged symmetrically in the upper and lower parts of the shell. After air is injected, it enters the flow channel on both sides to clean the outer surface of the membrane twice, thereby improving the cleaning effect.

3. The PVC functional film production conveying device according to claim 1, characterized in that, The driving mechanism includes a motor mounted on a bracket, the output end of which is mounted on a first roller for driving the first roller to rotate; a transmission assembly is installed between the first roller and the second roller; it also includes a first gear rotatably mounted on the outside of the bracket; a second gear is mounted on the transmission assembly, the first gear meshing with the second gear for linkage between the transmission assemblies on both sides; the motor drives the first roller to rotate, synchronously drives the second roller to rotate through the transmission assembly, and drives adjacent transmission assemblies to rotate through the engagement of the first gear and the second gear, thus driving all the first rollers and the second roller to rotate.

4. The PVC functional film production conveying device according to claim 3, characterized in that, The transmission assembly includes a transmission wheel and a transmission belt; there are two transmission wheels, which are coaxially mounted with the first roller and the second roller respectively; the transmission belt is sleeved on the outside of the two transmission wheels and is used to link the two transmission wheels.

5. The PVC functional film production conveying device according to claim 1, characterized in that, The clamping mechanism includes an electric push rod installed at the bottom of the inner side of the bracket, and a support plate installed on the top of the electric push rod; columns are symmetrically installed on the top of the support plate, and pressure rollers for squeezing the film are rotatably installed on the columns. The pressure rollers are in the same vertical plane as the first roller. The support plate is driven to move upward by the electric push rod, which synchronously drives the pressure rollers to move upward until they cooperate with the first roller to clamp the film, so that the first roller is tightly attached to the film.

6. The PVC functional film production conveying device according to claim 1, characterized in that, The injection mechanism includes a first housing mounted on the casing, with the air inlet of the flow channel located inside the first housing; a first air pump is mounted on the bracket; a first pipe is mounted on the air outlet of the first air pump, and the first pipe is fixedly inserted into the interior of the first housing; the first air pump injects air into the interior of the first housing through the first pipe, thereby injecting air into the flow channel.

7. The PVC functional film production conveying device according to claim 6, characterized in that, The collection mechanism includes a second housing mounted on the casing, with the exhaust end of the flow channel located inside the second housing; a third housing mounted on the support; a second pipe mounted on the second housing, the second pipe being fixedly inserted into the interior of the third housing; a second air pump mounted at the bottom of the third housing, the air inlet of the second air pump extending through the pipe into the interior of the third housing for extracting air from the interior of the third housing; a sealing cover mounted on the side of the third housing away from the support; a fixing component for fixing the position of the sealing cover mounted between the sealing cover and the third housing; a sealing rubber gasket mounted on the contact surface between the third housing and the sealing cover for sealing the contact position between the third housing and the sealing cover; a dustproof mesh box mounted on the sealing cover; when the sealing cover is fixed on the third housing, the dustproof mesh box is located between the second pipe and the second air pump, and the outer wall of the dustproof mesh box is tightly attached to the inner wall of the third housing.

8. The PVC functional film production conveying device according to claim 7, characterized in that, The sealing rubber gasket is fixed on any surface of the contact area between the third box and the sealing cover.

9. The PVC functional film production conveying device according to claim 7, characterized in that, The fixing component includes permanent magnets, which are symmetrically installed on both sides of the third box and both sides of the sealing cover. The permanent magnets on the sealing cover and the permanent magnets on the third box attract each other, and the position of the sealing cover is fixed by magnetic force.

10. The PVC functional film production conveying device according to claim 1, characterized in that, It also includes a rotatable guide roller mounted on the bracket, through which the membrane passes and the position of the membrane is adjusted to prevent the membrane from contacting the housing, the first box, and the second box during transport.

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