Ointment patch rapid coating and slitting system and ointment patch production process realized by using same

Abstract

The present application relates to the technical field of plaster production, especially to a plaster fast coating and cutting system and a plaster production process using the same, comprising a roller conveying line, an adjustable plaster coating unit, a pressing mechanism and a fast cutting mechanism, wherein the adjustable plaster coating unit, the pressing mechanism and the fast cutting mechanism are all installed above the roller conveying line, and the adjustable plaster coating unit, the pressing mechanism and the fast cutting mechanism are sequentially arranged from upstream to downstream with intervals. In the process of plaster production, the system can better realize the coating of plaster by using a multi-effect coater, and effectively control the thickness of the coating according to the needs of the product during coating. After coating, the system can effectively cooperate with the pressing mechanism to realize effective pressing and forming of the plaster layer, ensuring the forming effect of the product.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ointment patch production, in particular to a new system capable of quickly achieving uniform coating and rapid slitting of ointment patches, especially an ointment patch rapid coating and slitting system and an ointment patch production process realized by using the same. BACKGROUND

[0002] Ointment patches, also known as plaster patches, are commonly used for applying to the injured parts of the human body to achieve the effect of promoting blood circulation and removing blood stasis. They are mainly composed of a non-woven fabric layer, an ointment adhesive layer, and an easy-to-rip protective layer.

[0003] Currently, when producing ointment patches, a coating machine is generally used to coat the ointment adhesive layer on the non-woven fabric layer in cooperation with conveying equipment. After coating, an easy-to-rip protective layer is usually applied to form a three-layer structure of the ointment patch, and finally, slitting is performed to cut the ointment patch into standard size.

[0004] For example, in the prior art, a patent application No. CN202122989239.4 and a patent name of an ointment patch hot pressing coating device are disclosed. The main structure includes a film pressing roller and a film supporting roller, which are installed on a coating machine frame. One side of the film pressing roller and the film supporting roller is provided with a hot pressing assembly, which includes an upper pressing plate and a lower supporting plate. The inside of the upper pressing plate and the lower supporting plate is provided with an inner cavity, and the upper pressing plate and the lower supporting plate are fixedly installed with heating wires. The inside of the inner cavity is provided with a heating liquid. The two ends of the upper pressing plate are screw-connected with screw rods, and one end of the screw rod is provided with a driving motor. One side of the coating machine frame is fixedly connected with a U-shaped frame, and the film pressing roller is installed on the U-shaped frame. The coating machine frame is internally provided with an installation slot, and the film supporting roller is installed in the installation slot. The coating machine frame is fixedly connected with a second U-shaped frame, and the second U-shaped frame is internally provided with a through hole for installing the screw rod. The inside of the coating machine frame is provided with a second installation slot, and the lower supporting plate is installed in the second installation slot. One side of the upper pressing plate and the lower supporting plate is provided with a water inlet nozzle.

[0005] As can be seen from the above patent, the film pressing roller and the film supporting roller are mainly used to cooperate with hot pressing to achieve hot pressing after coating. However, this processing method is not ideal for coating some ointments with high viscosity, and cannot achieve uniform coating. Moreover, the same production line is not universal when producing ointment patches with different ointment layer thicknesses.

[0006] Therefore, the present application proposes a new system capable of quickly achieving uniform coating and rapid slitting of ointment patches to better solve the problems existing in the prior art. SUMMARY

[0007] To solve one of the aforementioned technical problems, the present invention employs a rapid plaster coating and slitting system, comprising a roller conveyor line, an adjustable plaster coating unit, an application pressing mechanism, and a rapid slitting mechanism. The adjustable plaster coating unit, the application pressing mechanism, and the rapid slitting mechanism are all installed above the roller conveyor line. These three mechanisms are sequentially arranged from upstream to downstream at intervals. The adjustable plaster coating unit is used to uniformly coat the plaster onto a non-woven fabric laid on top of the roller conveyor line. The application pressing mechanism is used to apply a protective plaster layer to the surface of the coated plaster. The rapid slitting mechanism is used to quickly cut the entire plaster strip, which has been applied upstream, to the specified dimensions.

[0008] In any of the above embodiments, preferably, the adjustable plaster coating unit includes a plaster feeding conveying pipe connected to the coating machine feeding equipment. The outlet end of the plaster feeding conveying pipe is installed on the top of a coating temporary storage bin. At the bottom of the coating temporary storage bin, a plurality of coating pipe ports with discharge control valves are arranged at intervals along the width direction of the roller conveyor line. A power conveying pump is installed on the plaster feeding conveying pipe. The coating temporary storage bin is fixedly installed on a coating lifting seat. The coating lifting seat is fixedly installed at the bottom of a lifting control cylinder group. The top of the lifting control cylinder group is fixedly installed. A multi-effect coater for uniformly coating the plaster that is squeezed onto the surface of the nonwoven fabric is installed on the side wall of the upstream side of the coating temporary storage bin.

[0009] In any of the above embodiments, preferably, the multi-effect coater includes a vertical fine-tuning cylinder fixed to the front side wall of the coating storage hopper. The vertical fine-tuning cylinder adopts a structure with two piston rods extending in the same direction. A fine-tuning seat is fixedly connected to the bottom of the two piston rods of the vertical fine-tuning cylinder. An inclined linkage frame is provided on the front side of the fine-tuning seat. A coating roller shaft is movably mounted in the wheel frame at the upper and lower ends of the inclined linkage frame. The length of the coating roller shaft is greater than the width of the nonwoven fabric. An undulating control spring is provided below the middle part of the inclined linkage frame. The upper part of the undulating control spring is movably hinged to the upper part of the inclined linkage frame, and the lower part is movably hinged to the lower part of the side wall of the coating storage hopper. The coating roller shaft is used to uniformly roll-coat the ointment on the surface of the nonwoven fabric.

[0010] In any of the above embodiments, it is preferred that a second scraping mechanism is provided on the front side of the coating roller shaft. The second scraping mechanism includes an excess material scraper plate inclinedly disposed on the upper part of the coating roller shaft. The upper end of the excess material scraper plate is movably hinged to a positioning lug fixed on the upper part of the inclined connecting rod frame. A plurality of scraping teeth are fixedly fixed along the length direction of the middle section of the inner side wall of the excess material scraper plate for abutting against the outer side wall of the coating roller shaft. When the coating roller shaft rotates, each scraping tooth will scrape off the excess plaster on its surface to ensure the relative smoothness and flatness of the coating roller shaft surface.

[0011] In any of the above embodiments, it is preferred that the lower end of the scraper plate is an arc-shaped curved section, and the bottom of the arc-shaped curved section is used to scrape and flatten the plaster that has been rolled and coated a second time.

[0012] In any of the above embodiments, it is preferred that a scraper adjustment spring is provided between the scraper plate and the inclined linkage frame, and the two ends of the scraper adjustment spring are respectively movably hinged to the scraper plate and the inclined linkage frame.

[0013] In any of the above embodiments, preferably, the pressing mechanism includes a horizontal guide roller disposed above the roller conveyor line downstream of the multi-effect coater. The horizontal guide roller is movably mounted in a positioning roller frame. The top of the positioning roller frame is fixedly mounted at the bottom of the roller pressure control cylinder group. The top of the roller pressure control cylinder group is fixedly disposed. The roller pressure control cylinder group is used to drive the horizontal guide roller to achieve lifting and lowering. A double roller guide is disposed above the roller conveyor line between the horizontal guide roller and the multi-effect coater. The double roller guide consists of two upper guide rollers that are spaced apart from each other and horizontally fixed-axis. Both upper guide rollers are active fixed-axis rotating structures. A space is provided between the two upper guide rollers for the protective layer to pass vertically downward. The protective layer and the non-woven fabric layer are combined into a paste and then conveyed forward by the roller conveyor line.

[0014] In any of the above embodiments, it is preferred that a plurality of guide rollers are provided at intervals downstream of the horizontal guide roller along the conveying direction of the plaster.

[0015] In any of the above solutions, it is preferred that the rapid cutting mechanism cuts the ointment layer by first pressing and then repeatedly pulling and cutting along its width direction.

[0016] In any of the above embodiments, it is preferred that the rapid slitting mechanism includes a pressure-cutting control cylinder assembly fixedly arranged above the roller conveyor line. The pressure-cutting control cylinder assembly consists of four spaced-apart pressure-cutting control electric cylinders, and a reciprocating pressure cutter is installed at the bottom of the piston rod of the pressure-cutting control cylinder assembly.

[0017] In any of the above embodiments, preferably, the reciprocating pressure cutter includes a rectangular pressing frame, with several pressing springs fixed to the bottom of the rectangular pressing frame. Each pressing spring at the bottom of the rectangular pressing frame is used to fix the plaster on both sides of the cut when cutting the plaster. The bottom of the piston rod of the pressure cutting control cylinder assembly is fixedly connected to the top four corners of the rectangular pressing frame. A sliding blade holder is installed inside the inner frame of the rectangular pressing frame, and an alloy slitting blade is detachably fixedly installed at the bottom of the sliding blade holder. The sliding cutter head passes through the corresponding through holes at both ends of the rectangular pressing frame via reciprocating pull shafts fixed to its front and rear ends. A cantilever seat is fixedly installed at the bottom of the rear end face of the rectangular pressing frame. A horizontally arranged reciprocating cutting control cylinder is fixedly installed on the cantilever seat. The end of the piston rod of the reciprocating cutting control cylinder is fixedly connected to the reciprocating pull shaft at the corresponding position. The reciprocating cutting control cylinder drives the sliding cutter head to reciprocate along the width direction of the plaster patch through the extension and retraction of the piston rod, thereby cutting the plaster patch.

[0018] This invention also provides a plaster production process using a rapid coating and slitting system for plaster patches, which involves preparing various raw materials required for plaster patch production;

[0019] The unwinding end of the roll of nonwoven fabric is laid horizontally on the roller conveyor line of the plaster patch rapid coating and slitting system, and its end is connected to the roller conveyor line.

[0020] The control system for rapid coating and slitting of plaster patches applies plaster to the surface of nonwoven fabric and completes the coating and spreading process sequentially. During the coating process, the standard thickness of the plaster coating layer is achieved according to manufacturing requirements.

[0021] After the nonwoven fabric coating of the current part is completed, the control plaster rapid coating and slitting system continues to apply an easy-tear protective layer to the surface of the coated plaster layer, and during the application process, the roller conveyor line continues to transport the entire plaster downstream at the set speed.

[0022] During the downstream transport process, the rapid cutting mechanism of the plaster patch rapid coating and cutting system sequentially cuts the entire plaster patch into the set length.

[0023] The conveyor continues forward to the packaging station, where it is packaged, labeled, and then shipped out.

[0024] In any of the above schemes, it is preferred that the roller conveyor line cooperates to pause the movement of the plaster during the slitting action, and continues to convey forward after each slitting action is completed.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. In the process of producing plaster patches, this system can use a multi-effect coater to better achieve the coating of the plaster. During the coating process, the coating thickness can be effectively controlled according to the product requirements. After coating, it can effectively cooperate with the pressing mechanism to achieve effective pressing and shaping of the plaster layer, ensuring the product shaping effect.

[0027] 2. The multi-effect coater effectively ensures the flatness of the coating roller during the coating process of ointment. At the same time, after rolling ointments with a certain viscosity, it can effectively remove ointments from the surface of the coating roller to ensure the flatness and smoothness of the coating roller, thereby ensuring the rolling effect. In addition, after the coating roller is rolled, the excess material can be scraped and leveled again by the residual material scraper, which can better cooperate with the downstream application and pressing actions.

[0028] 3. After application, the rapid cutting mechanism designed in this system can quickly cut the plaster layer by pressing and then pulling back and forth along its width. This can effectively ensure the effect of cutting the plaster, ensure the thoroughness of the cutting, and prevent the plasters from sticking together. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0030] Figure 1 This is a schematic diagram of the overall layout structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the structure of the present invention.

[0032] Figure 3 for Figure 1 A partial cross-sectional view of the reciprocating pressure cutter along direction A.

[0033] Figure 4 This is a partially enlarged structural schematic diagram of the present invention.

[0034] In the diagram, A is nonwoven fabric; B is protective layer; C is ointment; D is ointment patch; 1 is roller conveyor line; 2 is adjustable ointment coating unit; 3 is application mechanism; 301 is horizontal guide roller; 302 is positioning roller frame; 303 is roller pressure control cylinder group; 304 is upper guide roller; 305 is guide roller; 4 is rapid slitting mechanism; 401 is pressure cutting control vertical cylinder group; 6 is multi-effect coater; 601 is vertical fine-tuning cylinder; 602 is fine-tuning seat; 603 is inclined linkage frame; 604 is coating roller shaft; 605 is undulating... 606. Control spring; 607. Excess material scraper; 608. Positioning ear; 609. Scraper teeth; 610. Arc-shaped bending section; 611. Scraper adjustment spring; 7. Paste supply conveying pipe; 8. Coating temporary storage bin; 9. Discharge control valve; 10. Coating pipe opening; 11. Power delivery pump; 12. Coating lifting seat; 13. Lifting control cylinder assembly; 14. Rectangular pressing frame; 15. Pressing spring; 16. Sliding knife holder; 17. Alloy slitting knife; 18. Reciprocating pull-out shaft; 19. Cantilever seat; 20. Reciprocating cutting control cylinder. Detailed Implementation

[0035] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore merely examples and should not be used to limit the scope of protection of the present invention. The specific structure of the present invention is as follows: Figures 1-4 As shown in the image.

[0036] Example 1:

[0037] The rapid coating and slitting system for plaster patches includes a roller conveyor line 1, an adjustable plaster coating unit 2, an application pressing mechanism 3, and a rapid slitting mechanism 4. The adjustable plaster coating unit 2, the application pressing mechanism 3, and the rapid slitting mechanism 4 are all installed above the roller conveyor line 1. These three mechanisms are arranged sequentially from upstream to downstream at intervals. The adjustable plaster coating unit 2 is used to evenly coat the plaster C onto the non-woven fabric A laid on top of the roller conveyor line 1. The application pressing mechanism 3 is used to apply a protective plaster layer B onto the surface of the coated plaster C. The rapid slitting mechanism 4 is used to quickly cut the entire plaster patch, which has been applied upstream, to the specified dimensions. The rapid coating and slitting system for plaster patches of the present invention is designed to use a roller conveyor line 1 to effectively transport the plaster patches. During the transport process, the plaster is transported at a set speed. During the transport process, an external coating machine feeding device is activated to supply the plaster. The plaster is directly coated onto the nonwoven fabric A through an adjustable plaster coating unit 2. Under the action of the adjustable plaster coating unit 2, the plaster is uniformly roller coated. After coating, an easy-tear protective film layer is applied to the surface of the plaster using a pressing mechanism 3. After the three-layer structure of the plaster patch is pressed and formed, it is quickly slitting into sheets using a rapid slitting mechanism 4.

[0038] In any of the above embodiments, preferably, the adjustable plaster coating unit 2 includes a plaster supply and conveying pipe 7 connected to the coating machine feeding equipment. The outlet end of the plaster supply and conveying pipe 7 is installed on the top of a coating storage bin 8. At the bottom of the coating storage bin 8, a plurality of coating pipe ports 10 with discharge control valves 9 are arranged at intervals along the width direction of the roller conveyor line 1. A power conveying pump 11 is installed on the plaster supply and conveying pipe 7. The coating storage bin 8 is fixedly installed on a coating lifting seat 12. The coating lifting seat 12 is fixedly fixed at the bottom of a lifting control cylinder group 13. The top of the lifting control cylinder group 13 is fixedly installed. A multi-effect coater 6 for uniformly coating the plaster that is squeezed onto the surface of the nonwoven fabric A is installed on the side wall of the upstream side of the coating storage bin 8. When the adjustable plaster coating unit 2 is working, it uses the plaster supply and delivery pipe 7 to pump the external plaster to the multi-effect coater 6 using the power delivery pump 11. Under the action of the multi-effect coater 6, the plaster is coated onto the non-woven fabric A. During the coating process, the height interval between the entire multi-effect coater 6 and the non-woven fabric A can be adjusted by controlling the extension and retraction of the lifting and positioning cylinder as needed.

[0039] In any of the above embodiments, preferably, the multi-effect coater 6 includes a vertical fine-tuning cylinder 601 fixed on the front side wall of the coating storage bin 8. The vertical fine-tuning cylinder 601 adopts a structure with two piston rods extending in the same direction. A fine-tuning seat 602 is fixedly connected to the bottom of the two piston rods of the vertical fine-tuning cylinder 601. An inclined connecting rod frame 603 is provided on the front side of the fine-tuning seat 602. A coating roller shaft 604 is movably mounted in the wheel frame at the upper and lower ends of the inclined connecting rod frame 602. The length of the coating roller shaft 604 is greater than the width of the nonwoven fabric A. An undulating control spring 605 is provided below the middle part of the inclined connecting rod frame 603. The upper part of the undulating control spring 605 is movably hinged to the upper part of the inclined connecting rod frame 603, and the lower part is movably hinged to the lower part of the side wall of the coating storage bin 8. The coating roller shaft 604 is used to uniformly roll-coat the ointment on the surface of the nonwoven fabric A. The multi-effect coater 6 has the following functions: the vertical fine-tuning cylinder 601 can control the height position of the coating roller 604 relative to the coating storage bin 8, thereby ensuring that the individual height adjustment of the coating roller 604 can be achieved after the coating storage bin 8 is positioned, and thus performing precise fine-tuning control of the coating thickness when the coating roller 604 rolls the paste extruded on the nonwoven fabric A; in addition, the undulation control spring set here can ensure flexible movement during coating.

[0040] In any of the above embodiments, it is preferred that a second scraping mechanism is also provided on the front side of the coating roller 604. The second scraping mechanism includes an excess material scraper 606 inclinedly disposed on the upper part of the coating roller 604. The upper end of the excess material scraper 606 is movably hinged to a positioning lug 607 fixedly connected to the upper part of the inclined connecting rod frame 603. A plurality of scraping teeth 608 are fixedly fixed along the length direction of the middle section of the inner side wall of the excess material scraper 606 for abutting against the outer side wall of the coating roller 604. When the coating roller 604 rotates, each scraping tooth 608 scrapes off the excess plaster on its surface to ensure the relative smoothness and flatness of the surface of the coating roller 604. The secondary scraping mechanism is mainly used here to cooperate with the rotating coating roller 604 to better ensure that when the paste has high viscosity, the scraping teeth 608 set on the residual material scraper 606 scrape off the paste adhering to the surface of the coating roller 604. This ensures that the coating roller 604 is rolled and coated with a relatively smooth surface, ensuring the flatness of the roll and improving the roll effect.

[0041] In any of the above embodiments, it is preferred that the lower end of the scraper 606 is an arc-shaped curved section 609, the bottom of which is used to perform a secondary scraping and flattening of the plaster after roller coating. The bottom of the arc-shaped curved section 609 is polished to allow for a second light scraping and pressing of the relatively flat plaster layer after roller coating by the coating roller 604, further ensuring the flatness of the plaster layer and removing protruding particles.

[0042] In any of the above embodiments, it is preferred that a scraper adjustment spring 610 is provided between the scraper plate 606 and the inclined connecting rod frame 603, with both ends of the scraper adjustment spring 610 being movably hinged to the scraper plate 606 and the inclined connecting rod frame 603, respectively. The scraper adjustment spring 610 provided here has a relatively small elastic coefficient, which can effectively ensure that light and auxiliary scraping is performed when scraping material in the arc-shaped curved section 609 of the scraper plate 606.

[0043] In any of the above embodiments, preferably, the pressing mechanism 3 includes a horizontal guide roller 301 disposed above the roller conveyor line 1 downstream of the multi-effect coater 6. The horizontal guide roller 301 is movably installed in a positioning roller frame 302. The top of the positioning roller frame 302 is fixedly installed at the bottom of the roller pressure control cylinder group 303. The top of the roller pressure control cylinder group 303 is fixedly disposed. The roller pressure control cylinder group 303 is used to drive the horizontal guide roller 301 to achieve lifting and lowering. A double roller guide is disposed above the roller conveyor line 1 between the horizontal guide roller 301 and the multi-effect coater 6. The double roller guide includes two upper guide rollers 304 that are spaced apart from each other and horizontally fixed-axis. Both upper guide rollers 304 are active fixed-axis rotating structures. A space is provided between the two upper guide rollers 304 for the protective layer B to pass vertically downward. The protective layer B and the non-woven fabric A layer are compounded into a paste and then conveyed forward by the roller conveyor line 1. After the coating and scraping are completed, the outer roll of easy-tear protective layer B can be manually passed around the two upper guide rollers 304. Both upper guide rollers 304 are equipped with drive motors or drive motors. During the relative rotation of the upper guide rollers 304, the roll of protective layer B can be continuously conveyed downstream. After passing the horizontal guide roller 301, the horizontal direction is reversed. At this time, under the action of the roller pressure control cylinder group 303 on the horizontal guide roller 301, the protective layer B can be bonded to the surface of the adhesive paste layer with a certain pressure. At this time, during the forward conveying of nonwoven fabric A and paste layer with roller conveyor line 1, the protective layer B that is bonded to it can be driven forward and enter the slitting station.

[0044] In any of the above embodiments, it is preferred that a plurality of guide rollers 305 are provided at intervals downstream of the horizontal guide roller 301 along the conveying direction of the adhesive patch. The function of each guide roller 305 is to guide and limit the movement of the protective layer B as it is conveyed forward.

[0045] In any of the above embodiments, it is preferred that the rapid slitting mechanism 4 includes a pressure-cutting control cylinder assembly 401 fixedly disposed above the roller conveyor line 1. The pressure-cutting control cylinder assembly 401 consists of four spaced-apart pressure-cutting control electric cylinders, and a reciprocating pressure cutter is installed at the bottom of the piston rod of the pressure-cutting control cylinder assembly 401. The slitting action can be controlled by controlling the lifting and lowering of the pressure-cutting control electric cylinders. When it is necessary to slitting the plaster, the pressure-cutting control electric cylinder can drive the corresponding reciprocating pressure cutter to move down and use the reciprocating pressure cutter to press the entire plaster strip that is currently stationary, so as to ensure stability during slitting and prevent the plaster from swinging.

[0046] Example 2:

[0047] The rapid coating and slitting system for plaster patches includes a roller conveyor line 1, an adjustable plaster coating unit 2, an application pressing mechanism 3, and a rapid slitting mechanism 4. The adjustable plaster coating unit 2, the application pressing mechanism 3, and the rapid slitting mechanism 4 are all installed above the roller conveyor line 1. The adjustable plaster coating unit 2, the application pressing mechanism 3, and the rapid slitting mechanism 4 are arranged sequentially from upstream to downstream at intervals. The adjustable plaster coating unit 2 is used to uniformly coat the plaster C onto the non-woven fabric A laid on top of the roller conveyor line 1. The application pressing mechanism 3 is used to apply the plaster protective layer B onto the surface of the coated plaster C. The rapid slitting mechanism 4 is used to quickly cut the entire plaster patch D that has been applied upstream to the required dimensions.

[0048] In any of the above embodiments, preferably, the adjustable plaster coating unit 2 includes a plaster supply and conveying pipe 7 connected to the coating machine feeding equipment. The outlet end of the plaster supply and conveying pipe 7 is installed on the top of a coating storage bin 8. At the bottom of the coating storage bin 8, a plurality of coating pipe ports 10 with discharge control valves 9 are arranged at intervals along the width direction of the roller conveyor line 1. A power conveying pump 11 is installed on the plaster supply and conveying pipe 7. The coating storage bin 8 is fixedly installed on a coating lifting seat 12. The coating lifting seat 12 is fixedly fixed at the bottom of a lifting control cylinder group 13. The top of the lifting control cylinder group 13 is fixedly installed. A multi-effect coater 6 for uniformly coating the plaster that is squeezed onto the surface of the nonwoven fabric A is installed on the side wall of the upstream side of the coating storage bin 8.

[0049] When the adjustable plaster coating unit 2 is working, it uses the plaster supply and delivery pipe 7 to pump the external plaster to the multi-effect coater 6 using the power delivery pump 11. Under the action of the multi-effect coater 6, the plaster is coated onto the non-woven fabric A. During the coating process, the height interval between the entire multi-effect coater 6 and the non-woven fabric A can be adjusted by controlling the extension and retraction of the lifting and positioning cylinder as needed.

[0050] In any of the above embodiments, preferably, the multi-effect coater 6 includes a vertical fine-tuning cylinder 601 fixed on the front side wall of the coating storage bin 8. The vertical fine-tuning cylinder 601 adopts a structure with two piston rods extending in the same direction. A fine-tuning seat 602 is fixedly connected to the bottom of the two piston rods of the vertical fine-tuning cylinder 601. An inclined connecting rod frame 603 is provided on the front side of the fine-tuning seat 602. A coating roller shaft 604 is movably mounted in the wheel frame at the upper and lower ends of the inclined connecting rod frame 602. The length of the coating roller shaft 604 is greater than the width of the nonwoven fabric A. An undulating control spring 605 is provided below the middle part of the inclined connecting rod frame 603. The upper part of the undulating control spring 605 is movably hinged to the upper part of the inclined connecting rod frame 603, and the lower part is movably hinged to the lower part of the side wall of the coating storage bin 8. The coating roller shaft 604 is used to uniformly roll-coat the ointment on the surface of the nonwoven fabric A.

[0051] The multi-effect coater 6 has the following functions: the vertical fine-tuning cylinder 601 can control the height position of the coating roller 604 relative to the coating storage bin 8, thereby ensuring that the individual height adjustment of the coating roller 604 can be achieved after the coating storage bin 8 is positioned, and thus performing precise fine-tuning control of the coating thickness when the coating roller 604 rolls the paste extruded on the nonwoven fabric A; in addition, the undulation control spring set here can ensure flexible movement during coating.

[0052] In any of the above embodiments, it is preferred that a second scraping mechanism is also provided on the front side of the coating roller 604. The second scraping mechanism includes an excess material scraper 606 inclinedly disposed on the upper part of the coating roller 604. The upper end of the excess material scraper 606 is movably hinged to a positioning lug 607 fixedly connected to the upper part of the inclined connecting rod frame 603. A plurality of scraping teeth 608 are fixedly fixed along the length direction of the middle section of the inner side wall of the excess material scraper 606 for abutting against the outer side wall of the coating roller 604. When the coating roller 604 rotates, each scraping tooth 608 scrapes off the excess plaster on its surface to ensure the relative smoothness and flatness of the surface of the coating roller 604.

[0053] The secondary scraping mechanism is mainly used here to cooperate with the rotating coating roller 604 to better ensure that when the paste has high viscosity, the scraping teeth 608 set on the residual material scraper 606 scrape off the paste adhering to the surface of the coating roller 604. This ensures that the coating roller 604 is rolled and coated with a relatively smooth surface, ensuring the flatness of the roll and improving the roll effect.

[0054] In any of the above embodiments, it is preferred that the lower end of the scraper 606 is an arc-shaped curved section 609, and the bottom of the arc-shaped curved section 609 is used to scrape and flatten the plaster that has been rolled and coated.

[0055] The bottom of the curved section 609 is polished to allow for a light scraping of the relatively flat paste layer after it has been coated by the coating roller 604, further ensuring the flatness of the paste layer and removing protruding particles.

[0056] In any of the above embodiments, it is preferred that a scraper adjustment spring 610 is provided between the scraper plate 606 and the inclined linkage frame 603, and the two ends of the scraper adjustment spring 610 are respectively movably hinged to the scraper plate 606 and the inclined linkage frame 603.

[0057] The scraper adjustment spring 610 set here has a relatively small elastic coefficient, which can effectively ensure that light and auxiliary scraping is performed when scraping material in the arc-shaped curved section 609 of the residual material scraper plate 606.

[0058] In any of the above embodiments, preferably, the pressing mechanism 3 includes a horizontal guide roller 301 disposed above the roller conveyor line 1 downstream of the multi-effect coater 6. The horizontal guide roller 301 is movably installed in a positioning roller frame 302. The top of the positioning roller frame 302 is fixedly installed at the bottom of the roller pressure control cylinder group 303. The top of the roller pressure control cylinder group 303 is fixedly disposed. The roller pressure control cylinder group 303 is used to drive the horizontal guide roller 301 to achieve lifting and lowering. A double roller guide is disposed above the roller conveyor line 1 between the horizontal guide roller 301 and the multi-effect coater 6. The double roller guide includes two upper guide rollers 304 that are spaced apart from each other and horizontally fixed-axis. Both upper guide rollers 304 are active fixed-axis rotating structures. A space is provided between the two upper guide rollers 304 for the protective layer B to pass vertically downward. The protective layer B and the non-woven fabric A layer are compounded into a paste and then conveyed forward by the roller conveyor line 1.

[0059] After the coating and scraping are completed, the outer roll of easy-tear protective layer B can be manually passed around the two upper guide rollers 304. Both upper guide rollers 304 are equipped with drive motors or drive motors. During the relative rotation of the upper guide rollers 304, the roll of protective layer B can be continuously conveyed downstream. After passing the horizontal guide roller 301, the horizontal direction is reversed. At this time, under the action of the roller pressure control cylinder group 303 on the horizontal guide roller 301, the protective layer B can be bonded to the surface of the adhesive paste layer with a certain pressure. At this time, during the forward conveying of nonwoven fabric A and paste layer with roller conveyor line 1, the protective layer B that is bonded to it can be driven forward and enter the slitting station.

[0060] In any of the above embodiments, it is preferred that a plurality of guide rollers 305 are provided at intervals downstream of the horizontal guide roller 301 along the conveying direction of the paste patch D.

[0061] The function of each guide roller 305 is to guide and limit the movement of the protective layer B as it is conveyed forward.

[0062] In any of the above solutions, it is preferred that the rapid cutting mechanism 4 cuts the ointment layer by pressing it first and then pulling it back and forth along its width direction to cut it quickly.

[0063] Pressing down first and then pulling back and forth can achieve the action of cutting before slicing, thus ensuring the slicing effect and preventing the slicing parts from sticking together.

[0064] In any of the above embodiments, it is preferred that the rapid cutting mechanism 4 includes a pressure cutting control cylinder group 401 fixedly arranged above the roller conveyor line 1. The pressure cutting control cylinder group 401 consists of four pressure cutting control electric cylinders arranged at intervals, and a reciprocating pressure cutter is installed at the bottom of the piston rod of the pressure cutting control cylinder group 401.

[0065] The cutting action can be controlled by adjusting the lifting and lowering of the pressure-cutting control cylinder. When the plaster needs to be cut, the pressure-cutting control cylinder can drive the corresponding reciprocating pressure cutter to move down and press the entire plaster that is currently stationary, so as to ensure stability during cutting and prevent the plaster from swinging.

[0066] In any of the above embodiments, preferably, the reciprocating pressure cutter includes a rectangular pressing frame 14, with several pressing springs 15 fixed to the bottom of the rectangular pressing frame 14. Each pressing spring 15 at the bottom of the rectangular pressing frame 14 is used to fix the plaster patch on both sides of the cut when cutting the plaster patch D. The bottom of the piston rod of the pressure cutting control cylinder assembly 401 is fixedly connected to the top four corners of the rectangular pressing frame 14. A sliding blade holder 16 is installed inside the inner frame of the rectangular pressing frame 14, and an alloy slitting blade 17 is detachably and fixedly installed at the bottom of the sliding blade holder 16. The sliding cutter 16 passes through the corresponding through holes at both ends of the rectangular pressing frame 14 via reciprocating pull shafts 18 fixedly connected to its front and rear ends. A cantilever 19 is fixedly installed at the bottom of the rear end face of the rectangular pressing frame 14. A horizontally arranged reciprocating cutting control cylinder 20 is fixedly installed on the cantilever 19. The end of the piston rod of the reciprocating cutting control cylinder 20 is fixedly connected to the reciprocating pull shaft 18 at the corresponding position. The reciprocating cutting control cylinder 20 drives the sliding cutter 16 to reciprocate along the width direction of the plaster patch through the extension and retraction of the piston rod, thereby cutting the plaster patch.

[0067] During the slitting process, as the reciprocating pressure cutter moves downwards, the pressing spring 15 at the bottom of the rectangular pressing frame 14 contacts the surface of the paste layer, ensuring the fixation of the paste layer. At this time, the downward movement of the rectangular pressing frame 14 can be controlled according to the current thickness of the paste layer. During the downward movement of the rectangular pressing frame 14, the alloy slitting blade 17 continuously cuts into the paste layer to cut it. After vertical pressure cutting, to prevent the paste from not being completely cut off, the reciprocating cutting control cylinder 20 can be activated to achieve multiple reciprocating rapid extension and retraction, driving the sliding blade holder 16 to move back and forth. Finally, the alloy slitting blade 17 achieves reciprocating cutting while pressing the paste patch. After the cutting is completed, it resets, and then the pressure cutting control vertical cylinder group 401 drives the entire reciprocating pressure cutter to move upwards to achieve reset. This reciprocating motion achieves rapid slitting of the paste patch. First, vertical cutting, and then reciprocating cutting, can effectively ensure the cutting effect and thoroughness.

[0068] Working principle:

[0069] The rapid coating and slitting system for plaster patches of this invention is designed with a roller conveyor line 1 for effective transport of the plaster patches. During transport, the patches are transported at a set speed. An external coating machine feeder is activated to supply the plaster. The plaster is directly coated onto non-woven fabric A via an adjustable plaster coating unit 2. Under the action of the adjustable plaster coating unit 2, the plaster is uniformly roller-coated. After coating, an easy-tear protective film layer is applied to the surface of the plaster using a pressing mechanism 3. After the three-layer structure of the plaster patch is pressed and formed, a rapid slitting mechanism 4 quickly slits it into sheets. The specific steps are as follows:

[0070] The plaster patch production process utilizes a rapid coating and slitting system, and prepares various raw materials required for plaster patch production;

[0071] The unloading end of the roll of nonwoven fabric A is laid horizontally on the roller conveyor line 1 of the plaster patch rapid coating and slitting system, and its end is connected to the roller conveyor line 1.

[0072] The control system for rapid coating and slitting of plaster patches applies plaster to the surface of nonwoven fabric A and completes the coating and spreading process sequentially. During the coating process, the standard thickness of the plaster coating layer is achieved according to the manufacturing requirements.

[0073] After the nonwoven fabric A at the current location is coated, the plaster patch rapid coating and slitting system continues to apply the easy-tear protective layer B to the surface of the coated plaster layer, and during the application process, the roller conveyor line 1 continues to transport the entire plaster patch downstream at the set speed.

[0074] During the downstream transport process, the rapid cutting mechanism 4 of the plaster patch rapid coating and cutting system sequentially cuts the entire plaster patch into the set length.

[0075] The conveyor continues forward to the packaging station, where it is packaged, labeled, and then shipped out.

[0076] During the slitting process, roller conveyor line 1 works together to pause the movement of the plaster patch, and continues to convey it forward after each slitting action is completed.

[0077] In the production of plaster patches, this system utilizes a multi-effect coater 6 to better coat the ointment C, effectively controlling the coating thickness according to product requirements. After coating, it works effectively with the pressing mechanism 3 to press and shape the ointment layer, ensuring the product's forming effect. During the ointment coating process, the multi-effect coater 6 effectively ensures the smoothness of the ointment coating roller. Furthermore, after rolling ointments with a certain viscosity, it effectively removes ointment from the surface of the coating roller 604. To ensure the flatness and smoothness of the coating roller 604, thus guaranteeing the rolling effect; in addition, after the coating roller 604 is rolled, the residual material scraper 606 can be used for secondary scraping and leveling, which can better cooperate with the downstream application and pressing actions; after the pressing, the rapid cutting mechanism 4 designed in this system can quickly cut the plaster layer by pressing and then pulling and cutting along its width direction, which can effectively guarantee the effect of plaster cutting, ensure the thoroughness of cutting, and prevent the plasters from sticking together.

[0078] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention. For those skilled in the art, any alternative improvements or modifications made to the embodiments of the present invention fall within the protection scope of the present invention.

[0079] Any aspects of this invention not described in detail are well-known to those skilled in the art.

Claims

1. A rapid coating and slitting system for plaster patches, characterized in that: The system includes a roller conveyor line, an adjustable plaster coating unit, an application pressing mechanism, and a rapid cutting mechanism. The adjustable plaster coating unit, the application pressing mechanism, and the rapid cutting mechanism are all installed above the roller conveyor line. These three mechanisms are arranged sequentially from upstream to downstream at intervals. The adjustable plaster coating unit is used to evenly coat the plaster onto a non-woven fabric laid on top of the roller conveyor line. The application pressing mechanism is used to apply a protective plaster layer to the surface of the coated plaster. The rapid cutting mechanism is used to quickly cut the entire plaster strip applied upstream to the specified dimensions. The rapid slitting mechanism includes a pressure-cutting control cylinder assembly fixedly installed above the roller conveyor line. The pressure-cutting control cylinder assembly consists of four spaced-apart pressure-cutting control electric cylinders. A reciprocating pressure cutter is installed at the bottom of the piston rod of the pressure-cutting control cylinder assembly. The reciprocating pressure cutter includes a rectangular pressing frame. Several pressing springs are fixed to the bottom of the rectangular pressing frame. Each pressing spring at the bottom of the rectangular pressing frame is used to fix the plaster on both sides of the cut when cutting the plaster. The piston rods of the pressure cutting control cylinder assembly are all fixedly connected to the top four corners of the rectangular pressing frame. A sliding blade holder is installed inside the inner frame of the rectangular pressing frame. An alloy slitting blade is detachably fixed to the bottom of the sliding blade holder. The reciprocating pull shafts fixed to its front and rear ends respectively pass through the corresponding through holes at both ends of the rectangular pressing frame. A cantilever seat is fixedly installed at the bottom of the rear end face of the rectangular pressing frame. A horizontally arranged reciprocating cutting control cylinder is fixedly installed on the cantilever seat. The end of the piston rod of the reciprocating cutting control cylinder is fixedly connected to the reciprocating pull shaft at the corresponding position. The reciprocating cutting control cylinder drives the sliding cutter to reciprocate along the width direction of the plaster patch through the extension and retraction of the piston rod to cut the plaster patch.

2. The rapid application and slitting system for plaster patches according to claim 1, characterized in that: The adjustable plaster coating unit includes a plaster feeding and conveying pipe connected to the coating machine's feeding equipment. The outlet end of the plaster feeding and conveying pipe is installed on the top of a coating storage bin. At the bottom of the coating storage bin, a number of coating pipe ports with discharge control valves are spaced apart along the width direction of the roller conveyor line. A power conveying pump is installed on the plaster feeding and conveying pipe. The coating storage bin is fixedly installed on a coating lifting seat. The coating lifting seat is fixed at the bottom of a lifting control cylinder group. The top of the lifting control cylinder group is fixedly installed. A multi-effect coater for uniformly coating the plaster that has been squeezed onto the surface of the nonwoven fabric is installed on the upstream side wall of the coating storage bin.

3. The rapid application and slitting system for plaster patches according to claim 2, characterized in that: The application mechanism includes a horizontal guide roller located above the roller conveyor line downstream of the multi-effect coater. The horizontal guide roller is movably installed within a positioning roller frame. The top of the positioning roller frame is fixedly installed at the bottom of the roller pressure control cylinder assembly. The top of the roller pressure control cylinder assembly is fixedly installed and is used to drive the horizontal guide roller to achieve lifting and lowering. A double roller guide is provided above the roller conveyor line between the horizontal guide roller and the multi-effect coater. The double roller guide consists of two upper guide rollers that are spaced apart from each other and horizontally fixed-axis. Both upper guide rollers are active fixed-axis rotating structures. A space is provided between the two upper guide rollers for the protective layer to pass vertically downward. The protective layer and the non-woven fabric layer are combined into a paste and then conveyed forward by the roller conveyor line.

4. The rapid coating and slitting system for plaster patches according to claim 3, characterized in that: Several guide rollers are provided at intervals downstream of the horizontal guide roller along the conveying direction of the plaster.

5. The rapid coating and slitting system for ointments according to claim 4, characterized in that: The rapid cutting mechanism cuts the ointment layer quickly by pressing it first and then pulling it back and forth along its width.

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