An automated coating equipment and method for rubber paste

Abstract

This invention discloses an automated coating equipment and method for rubber plasters, relating to the field of plaster coating technology. It includes a base, on which a conveyor is mounted. An outlet coating device is positioned directly above the conveyor and installed at the bottom of a material hopper. Both sides of the material hopper are fixed to the base via mounting brackets. A crossbeam is positioned on the top of the base, on one side of the outlet coating device. An adjusting roller is mounted on the crossbeam, and an inclined plate is mounted on the adjusting roller. One end of the inclined plate extends to the top of the conveyor, and the vertical distance between the inclined plate and the top of the conveyor is adjusted as needed. Utilizing the relative movement of the molding plate and the conveyor, the molding plate is used to straighten the plaster at the cut-off line. The counter-clockwise rotation of the shearing roller and the scraper form a scissor-like cut-off of the adhesive on the inclined plate, ultimately forming an optimal regular shape to avoid uneven distribution and ensuring clean breakage.

Description

Technical Field

[0001] This invention belongs to the field of ointment coating technology, specifically relating to an automated coating equipment and method for rubber ointments. Background Technology

[0002] Rubber plasters are topical dosage forms where a mixture of drug or herbal extracts and a rubber-based matrix is ​​applied to a base fabric. Existing rubber plasters generally use silicone paper or adhesive tape as a carrier, onto which a mixture of drug or herbal extracts and a rubber-based matrix (hereinafter referred to as rubber plaster) is evenly coated. A cover layer (hereinafter referred to as a top layer) can also be applied to the rubber plaster to seal it. Currently, there are two main production methods for rubber plasters: the solvent method and the hot-pressing method. The hot-pressing method includes at least the processes of breaking down the rubber, soaking the rubber, refining, filtration, and drying to obtain the rubber plaster material, which is then placed on a coating device for application to produce the rubber plaster. Compared with solvent methods, hot pressing for producing rubber paste has advantages such as safety, environmental friendliness, small footprint, and high production efficiency. However, it still has the following shortcomings in the coating process. Since most pastes are rectangular, the paste application outlet is mostly long and narrow. In continuous coating operations, when each segment is cut off, the end position is often irregular due to the continuous transport of the conveyor. This results in the paste not being distributed in the optimal state at the specified location, leading to situations where there is insufficient paste or excessive paste in some areas. Furthermore, it is often necessary to use a pusher to even out the thickness of the paste. However, conventional pusher-style uniform thickness only exacerbates the irregularity at the end position, resulting in waste and incomplete use of the paste, whether for overall aesthetics or for localized deficiencies or excesses. Summary of the Invention

[0003] The purpose of this invention is to provide an automated coating equipment and method for rubber pastes to solve the above-mentioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an automated coating equipment for rubber plaster, comprising a base, a conveyor mounted on the base, an outlet coating device mounted directly above the conveyor, the outlet coating device being installed at the bottom of a material hopper, both sides of the material hopper being fixed to the base by mounting brackets, a crossbeam being mounted on the top of the base on one side of the outlet coating device, an adjusting roller being mounted on the crossbeam, an inclined plate being mounted on the adjusting roller, one end of the inclined plate extending to the top of the conveyor, and the vertical distance between the inclined plate and the top of the conveyor being adjusted as needed; The outlet coating equipment is provided with a longitudinal mounting frame on one side of the bottom outlet. The two ends of the longitudinal mounting frame extend to both sides of the inner wall of the base. An L-shaped horizontal plate is provided on one side of the longitudinal mounting frame. The L-shaped horizontal plate and the longitudinal mounting frame are slidably connected up and down. A shaping board is provided on one side of the L-shaped horizontal plate to standardize the shape of the ointment and prevent local defects.

[0005] Preferably, the grooves on both sides of the inner wall of the base are provided with side rods, and the two ends of the longitudinal mounting frame are respectively sleeved on the two side rods. The end of the longitudinal mounting frame away from the inclined plate is provided with a spring, and the spring is sleeved on the side rod, so as to use its rebound force to reset after the longitudinal mounting frame is pulled away.

[0006] Preferably, the longitudinal mounting bracket has an elongated groove inside, and one side of the L-shaped horizontal plate protrudes into the elongated groove and its bottom is elastically slidably connected to the interior of the longitudinal mounting bracket by a spring. An electromagnetic block is provided on the side of the L-shaped horizontal plate away from the longitudinal mounting frame, and the bottom of the electromagnetic block is telescopically connected to the L-shaped horizontal plate via a telescopic rod.

[0007] Preferably, a scraper is provided on the top of the shaping plate, and an electric cylinder is provided on the side of the shaping plate near the L-shaped horizontal plate to push the shaping plate to move a fixed distance. In cooperation with a high-speed camera fixed at the bottom of the horizontal frame, the distance between the shaping plate and the specified cut-off line of the ointment is measured by the camera through the terminal processor, and then the electric cylinder is used to control the shaping plate to move to the cut-off line position.

[0008] Preferably, the adjusting roller includes a central roller connected to both ends of the crossbeam, an intermediate roller connected to the outside of the central roller by a key, an outer ring sleeved on the outside of the intermediate roller, an expansion groove on the outside of the intermediate roller that engages with a protrusion on the inner wall of the outer ring, and a fixed connection between the inclined plate and the outer ring. The height of the inclined plate is controlled by controlling the rotation angle of the central roller to control the height of the contact point between the protrusion on the inner wall of the outer ring and the bottom of the expansion groove.

[0009] Preferably, a shearing roller is movably connected to the end of the inclined plate away from the crossbar. The central shaft of the shearing roller is driven by a motor to control the rotation of the shearing roller. The lowest point of the shearing roller is lower than the lowest point of the inclined plate, and the bottom of the inclined plate cuts onto the shearing roller. The shearing roller and the scraper are adapted to form a scissor shape to achieve the anti-adhesion treatment of the ointment.

[0010] Preferably, the inner wall of the synchronous belt is provided with a metal layer for being attracted and fixed by the electromagnetic block and the electromagnet provided at the bottom of the L-shaped horizontal plate, thereby fixing the overall position of the longitudinal mounting frame.

[0011] Preferably, one of the rotating shafts of the first synchronous belt extends to the outside of the base, and an electromagnetic roller is fixed at one end extending to the outside of the base. A driven wheel is sleeved on the outside of the electromagnetic roller. A driving wheel is fixed at one end of the rotating shaft of the conveyor extending to the outside of the base. The driving wheel and the driven wheel move synchronously with each other through the second synchronous belt, and the synchronization or separation of the movement between the electromagnetic roller and the driving wheel is controlled by the on and off state of the electromagnetic roller.

[0012] The specific steps for using an automated coating equipment specifically designed for rubber plasters are as follows: S1, the base fabric is transported to the bottom of the outlet coating equipment by the conveyor, and the outlet coating equipment is controlled to apply paste to the base fabric to form a regular and uniform paste area. During this process, the paste is stored and fed by the material hopper, and the paste is quantitatively dispensed by the outlet coating equipment. S2, during the coating process, the angle of the control center roller is used to control the height of the lowest point of the inclined plate. The lowest point of the inclined plate can be used to push the coated paste to a uniform thickness. S3, after the paste is applied to the bottom of each fixed area, the outlet coating equipment will cut off. At the same time as the outlet coating equipment cuts off, the L-shaped horizontal plate is energized to adsorb the bottom inner wall of the synchronous belt. At the same time, the electromagnetic roller is energized to make the drive wheel and the electromagnetic roller synchronously connected, so that the synchronous belt moves synchronously with the conveyor. The longitudinal mounting frame moves synchronously with the L-shaped horizontal plate and the synchronous belt and the conveyor. During the adsorption process, the L-shaped horizontal plate will drive the molding plate to move down and contact the bottom of the top transport of the conveyor. Using the relative movement between the molding plate and the conveyor, the molding plate will be regulated at the cut-off line. During this period, the side of the molding plate close to the paste is for easy replacement of the low-adhesion film. S4. After the molding board moves to the bottom of one end of the inclined plate with the conveyor, the synchronous de-energized electromagnetic roller and the energized electromagnetic block attract the top of the synchronous belt one. When the synchronous belt one is instantly de-energized, the longitudinal mounting frame achieves a brief stop due to the attraction state at both the top and bottom, so that the shaped paste is slowly separated from the molding board. The paste will not be pulled irregularly again due to the instantaneous reset pull of the spring. S5, when the shaping plate moves to the bottom of the inclined plate, the counterclockwise rotation of the shearing roller and the scraper form a scissor-like cut to cut off the adhesion on the inclined plate, thus forming the best regular shape to avoid uneven distribution and clean breakage.

[0013] The technical effects and advantages of this invention are as follows: The L-shaped horizontal plate is electrically energized to attract the bottom inner wall of the synchronous belt. Simultaneously, the electromagnetic roller is energized, creating a synchronous motion connection between the drive wheel and the electromagnetic roller. This causes the synchronous belt to move synchronously with the conveyor. The longitudinal mounting frame, along with the L-shaped horizontal plate and the synchronous belt, moves synchronously with the conveyor. During the attraction process, the L-shaped horizontal plate causes the molding plate to move downwards, contacting the bottom of the conveyor's top transport section. The relative movement between the molding plate and the conveyor causes the molding plate to straighten the paste at the cut-off line. During this process, the side of the molding plate closest to the paste facilitates the replacement of low-viscosity paste. The adhesive film, after the molding plate moves to the bottom of one end of the inclined plate with the conveyor, the synchronous de-energized electromagnetic roller and the energized electromagnetic block adsorb the top of the synchronous belt. When the synchronous belt is momentarily de-energized, the longitudinal mounting frame is briefly stopped due to the adsorption state from both top and bottom, allowing the shaped paste to slowly detach from the molding plate. This prevents the paste from being pulled irregularly again due to the instantaneous return of the spring. When the molding plate moves to the bottom of the inclined plate, the counterclockwise rotation of the shearing roller and the scraper form a scissor-like cut to cut the adhesion on the inclined plate, ultimately forming the optimal regular shape to avoid uneven distribution and clean disconnection. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged schematic diagram of section A in the middle; Figure 4 This is a schematic diagram of the unfolded structure of the longitudinal mounting frame of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of section B in the middle; Figure 6 This is an exploded view of the adjusting roller of the present invention; Figure 7 This is a schematic diagram of the side rod mounting structure of the present invention.

[0015] In the diagram: 1. Drive wheel; 2. Synchronous belt two; 3. Driven wheel; 4. Electromagnetic roller; 5. Inclined plate; 6. Material hopper; 7. Outlet coating equipment; 8. Horizontal frame; 9. Synchronous belt one; 10. Base; 11. Shearing roller; 12. Conveyor; 13. Scraper; 14. Molding plate; 15. Electric cylinder; 16. L-shaped horizontal plate; 17. Telescopic rod; 18. Longitudinal mounting frame; 19. Electromagnetic block; 20. Long groove; 21. Spring; 22. Spring two; 23. Adjusting roller; 2301. Center roller; 2302. Intermediate roller; 2303. Outer ring; 2304. Expansion groove; 24. Side rod. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] This invention provides, for example Figures 1-7 The automated coating equipment for rubber plaster shown includes a base 10, a conveyor 12 mounted on the base 10, an outlet coating device 7 mounted directly above the conveyor 12, the outlet coating device 7 being installed at the bottom of a material hopper 6, both sides of the material hopper 6 being fixed to the base 10 by mounting brackets, a crossbeam 8 being mounted on the top of the base 10 on one side of the outlet coating device 7, an adjusting roller 23 being mounted on the crossbeam 8, an inclined plate 5 being mounted on the adjusting roller 23, one end of the inclined plate 5 extending to the top of the conveyor 12, and the vertical distance between the inclined plate 5 and the top of the conveyor 12 being adjustable as needed; A longitudinal mounting frame 18 is provided on one side of the bottom outlet of the coating equipment 7. The two ends of the longitudinal mounting frame 18 extend to the two sides of the inner wall of the base 10 respectively. An L-shaped horizontal plate 16 is provided on one side of the longitudinal mounting frame 18. The L-shaped horizontal plate 16 and the longitudinal mounting frame 18 are slidably connected vertically. A shaping plate 14 is provided on one side of the L-shaped horizontal plate 16 to standardize the shape of the ointment and prevent local defects.

[0018] Specifically, side rods 24 are provided inside the grooves on both sides of the inner wall of the base 10. The two ends of the longitudinal mounting bracket 18 are respectively sleeved on the two side rods 24. A spring 21 is provided at the end of the longitudinal mounting bracket 18 away from the inclined plate 5, and the spring 21 is sleeved on the side rod 24 for restoring the longitudinal mounting bracket 18 by its rebound force after it is pulled away.

[0019] Specifically, the longitudinal mounting bracket 18 has an elongated groove 20 inside, and one side of the L-shaped horizontal plate 16 protrudes into the elongated groove 20 and the bottom is elastically slidably connected to the interior of the longitudinal mounting bracket 18 by a spring 22. An electromagnetic block 19 is provided on the side of the L-shaped horizontal plate 16 away from the longitudinal mounting bracket 18. The bottom of the electromagnetic block 19 is telescopically connected to the L-shaped horizontal plate 16 via a telescopic rod 17.

[0020] Specifically, a scraper 13 is provided on the top of the shaping plate 14, and an electric cylinder 15 is provided on the side of the shaping plate 14 near the L-shaped horizontal plate 16 to push the shaping plate 14 to move a fixed distance. In conjunction with a high-speed camera fixed at the bottom of the horizontal frame 8, the distance between the shaping plate 14 and the specified cut-off line of the ointment is measured by the camera through the terminal processor. Then, the electric cylinder 15 is used to control the shaping plate 14 to move to the cut-off line position.

[0021] Specifically, the adjusting roller 23 includes a center roller 2301 connected to both ends of the crossbeam 8. An intermediate roller 2302 is connected to the outside of the center roller 2301 by a key. An outer ring 2303 is sleeved on the outside of the intermediate roller 2302. An expansion groove 2304 is opened on the outside of the intermediate roller 2302 and engages with a protrusion on the inner wall of the outer ring 2303. The inclined plate 5 is fixedly connected to the outer ring 2303. The height of the contact point between the protrusion on the inner wall of the outer ring 2303 and the bottom of the expansion groove 2304 is controlled by controlling the rotation angle of the center roller 2301, thereby controlling the height of the inclined plate 5.

[0022] Specifically, a shearing roller 11 is movably connected to the end of the inclined plate 5 away from the crossbar 8. The central shaft of the shearing roller 11 is driven by a motor to control the rotation of the shearing roller 11. The lowest point of the shearing roller 11 is lower than the lowest point of the inclined plate 5, and the bottom of the inclined plate 5 cuts into the shearing roller 11. The shearing roller 11 and the scraper 13 are adapted to form a scissor shape to achieve the anti-adhesion treatment of the paste.

[0023] Specifically, the inner wall of the synchronous belt 9 is provided with a metal layer, which is used to be attracted and fixed by the electromagnets provided at the bottom of the electromagnetic block 19 and the L-shaped horizontal plate 16, thereby fixing the overall position of the longitudinal mounting frame 18.

[0024] Specifically, one of the rotating shafts of the timing belt 9 extends to the outside of the base 10, and an electromagnetic roller 4 is fixed at one end extending to the outside of the base 10. A driven wheel 3 is sleeved on the outside of the electromagnetic roller 4. One of the rotating shafts of the conveyor 12 extends to the outside of the base 10 and a driving wheel 1 is fixed at one end. The driving wheel 1 and the driven wheel 3 move synchronously with each other through the timing belt 2, and the synchronization or separation of the movement between the electromagnetic roller 4 and the driving wheel 1 is controlled by the on and off state of the electromagnetic roller 4.

[0025] Example 1: The base fabric is transported to the bottom of the outlet coating equipment 7 via conveyor 12. The outlet coating equipment 7 is controlled to apply paste to the base fabric to form a regular and uniform paste area. During this process, the paste is stored and fed using the material hopper 6, and the paste is quantitatively dispensed using the outlet coating equipment 7. During the coating process, the angle of the control center roller 2301 is used to control the height of the lowest point of one end of the inclined plate 5. The lowest point of one end of the inclined plate 5 can be used to push the applied paste to a uniform thickness. The paste is applied to the bottom of each fixed area. After the coating process is complete, the outlet coating device 7 will be cut off. Since most pastes are rectangular, the outlet coating device 7 is usually elongated. At this point, the edges become irregular due to the pulling motion of the conveyor 12 and the pushing motion of the inclined plate 5. Furthermore, the irregularity is amplified during the pushing process, causing the paste to not be evenly distributed within the specified area. To address this, at the same time as the outlet coating device 7 is cut off, the L-shaped horizontal plate 16 is energized to attract the bottom inner wall of the synchronous belt 9. Simultaneously, the electromagnetic roller 4 is energized to create a synchronous motion connection between the drive wheel 1 and the electromagnetic roller 4, allowing the synchronous belt 9 to move along with the conveyor 12. The longitudinal mounting frame 18 moves synchronously with the L-shaped horizontal plate 16 and the synchronous belt 9, and the conveyor 12. During the adsorption process, the L-shaped horizontal plate 16 will drive the molding plate 14 to move downwards and contact the bottom of the top transport of the conveyor 12. Utilizing the relative movement between the molding plate 14 and the conveyor 12, the molding plate 14 will be used to straighten the paste at the cut-off line. During this process, to facilitate the replacement of the low-adhesion film, the side of the molding plate 14 closest to the paste will be de-energized after the molding plate 14 moves with the conveyor 12 to the bottom of one end of the inclined plate 5. Wheel 4 and the energized electromagnetic block 19 adsorb the top of the synchronous belt 9, so that when the synchronous belt 9 is momentarily de-energized, the longitudinal mounting bracket 18 is in a brief stop state due to the adsorption state from both the top and bottom, so that the regularized paste is slowly separated from the molding plate 14, and the paste will not be pulled irregularly again due to the instantaneous reset of the spring 21. When the molding plate 14 moves to the bottom of the inclined plate 5, the counterclockwise rotation of the shearing roller 11 and the scraper 13 form a scissor-like cut to cut off the adhesion on the inclined plate 5, and finally form the best regular shape to avoid uneven distribution and clean disconnection.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated coating device for rubber plaster, comprising a base, a conveyor mounted on the base, an outlet coating device positioned directly above the conveyor, the outlet coating device being installed at the bottom of a material hopper, and both sides of the material hopper being fixed to the base via mounting brackets, characterized in that: A crossbeam is provided on the top of the base on one side of the outlet coating equipment. An adjusting roller is provided on the crossbeam, and an inclined plate is installed on the adjusting roller. One end of the inclined plate extends to the top of the conveyor. The outlet coating equipment is provided with a longitudinal mounting frame on one side of the bottom outlet. The two ends of the longitudinal mounting frame extend to both sides of the inner wall of the base. An L-shaped horizontal plate is provided on one side of the longitudinal mounting frame. The L-shaped horizontal plate and the longitudinal mounting frame are slidably connected up and down. A decorative panel is provided on one side of the L-shaped horizontal plate; Side rods are provided inside the grooves on both sides of the inner wall of the base. The two ends of the longitudinal mounting frame are respectively sleeved on the two side rods. A spring is provided at the end of the longitudinal mounting frame away from the inclined plate, and the spring is sleeved on the side rod. It is used to reset the longitudinal mounting frame by its rebound force after it is pulled away. The longitudinal mounting frame has an internal long groove, and one side of the L-shaped horizontal plate protrudes into the long groove and its bottom is elastically slidably connected to the interior of the longitudinal mounting frame by a spring 2. An electromagnetic block is provided on the side of the L-shaped horizontal plate away from the longitudinal mounting frame, and the bottom of the electromagnetic block is telescopically connected to the L-shaped horizontal plate via a telescopic rod. The top of the shaping board is equipped with a scraper, and an electric cylinder is provided on the side of the shaping board near the L-shaped horizontal plate to push the shaping board to move a fixed distance. In conjunction with a high-speed camera fixed at the bottom of the horizontal frame, the distance between the shaping board and the specified cut-off line of the ointment is measured by the camera through the terminal processor. Then, the electric cylinder is used to control the shaping board to move to the cut-off line position. The adjusting roller includes a central roller connected to both ends of the crossbeam. An intermediate roller is connected to the outside of the central roller by a key. An outer ring is sleeved on the outside of the intermediate roller. An expansion groove is opened on the outside of the intermediate roller to cooperate with the protrusion on the inner wall of the outer ring. The inclined plate is fixedly connected to the outer ring. The height of the contact point between the protrusion on the inner wall of the outer ring and the bottom of the expansion groove is controlled by controlling the rotation angle of the central roller, thereby controlling the height of the inclined plate. A shearing roller is movably connected to the end of the inclined plate away from the crossbar. A motor is driven to the central shaft of the shearing roller to control its rotation. The lowest point of the shearing roller is lower than the lowest point of the inclined plate, and the bottom of the inclined plate cuts onto the shearing roller. The shearing roller and the scraper are adapted to form a scissor shape to achieve anti-adhesion treatment of the ointment. The inner wall of the synchronous belt is provided with a metal layer, which is used to be attracted and fixed by the electromagnetic block and the electromagnet provided at the bottom of the L-shaped horizontal plate, thereby fixing the overall position of the longitudinal mounting frame. One of the rotating shafts of the first synchronous belt extends to the outside of the base, and an electromagnetic roller is fixed at one end extending to the outside of the base. A driven wheel is sleeved on the outside of the electromagnetic roller. One of the rotating shafts of the conveyor extends to the outside of the base and a driving wheel is fixed at one end. The driving wheel and the driven wheel move synchronously with each other through the second synchronous belt, and the synchronization or separation of the movement between the electromagnetic roller and the driving wheel is controlled by the on and off state of the electromagnetic roller.

2. The method of using the automated coating equipment for rubber plasters according to claim 1, characterized in that: The specific steps are as follows: S1, the base fabric is transported to the bottom of the outlet coating equipment by the conveyor, and the outlet coating equipment is controlled to apply paste to the base fabric to form a regular and uniform paste area. During this process, the paste is stored and fed by the material hopper, and the paste is quantitatively dispensed by the outlet coating equipment. S2, during the coating process, the angle of the control center roller is used to control the height of the lowest point of the inclined plate, and the lowest point of the inclined plate is used to push the coated paste to a uniform thickness. S3, after the paste is applied to the bottom of each fixed area, the outlet coating equipment will cut off. At the same time as the outlet coating equipment cuts off, the L-shaped horizontal plate is energized to adsorb the bottom inner wall of the synchronous belt. At the same time, the electromagnetic roller is energized to make the drive wheel and the electromagnetic roller synchronously connected, so that the synchronous belt moves synchronously with the conveyor. The longitudinal mounting frame moves synchronously with the L-shaped horizontal plate and the synchronous belt and the conveyor. During the adsorption process, the L-shaped horizontal plate will drive the molding plate to move down and contact the bottom of the top transport of the conveyor. Using the relative movement between the molding plate and the conveyor, the molding plate will be regulated at the cut-off line. During this period, the side of the molding plate close to the paste is for easy replacement of the low-adhesion film. S4. After the molding board moves to the bottom of one end of the inclined plate with the conveyor, the synchronous de-energized electromagnetic roller and the energized electromagnetic block attract the top of the synchronous belt one. When the synchronous belt one is instantly de-energized, the longitudinal mounting frame achieves a brief stop due to the attraction state at both the top and bottom, so that the shaped paste is slowly separated from the molding board. The paste will not be pulled irregularly again due to the instantaneous reset pull of the spring. S5, when the shaping plate moves to the bottom of the inclined plate, the counterclockwise rotation of the shearing roller and the scraper form a scissor-like cut to cut off the adhesion on the inclined plate, thus forming the best regular shape to avoid uneven distribution and clean breakage.

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