Waterproof coating for packaging paper and surface coating equipment thereof

Abstract

The invention relates to the technical field of packaging paper waterproof coatings, and discloses a packaging paper waterproof coating and surface coating equipment thereof.The packaging paper waterproof coating comprises a bottom plate, one side of the top end of the bottom end of the bottom plate is fixedly connected with a set of front-back symmetrical supporting columns, and one side of each supporting column is rotationally connected with an upper feeding roller and a lower feeding roller; the top end of the other side of the first supporting column is fixedly connected with a set of front-back symmetrical supporting rods, the top ends of the supporting rods are fixedly connected with a plurality of coating machines, the sides, away from the coating machines, of the supporting rods are fixedly connected with auxiliary mechanisms, and the sides, away from the auxiliary mechanisms, of the supporting rods are movably connected with first guide rollers. An auxiliary roller is attached to the surface of packaging paper, then a first motor can be controlled to drive a second gear to rotate, the second gear can drive a first gear to move when rotating, the first gear can drive a screw to move downwards under the action of threads, meanwhile, a scraping plate can also move downwards, and personnel observe through a window.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waterproof coating for packaging paper, and particularly relates to a waterproof coating for packaging paper and a surface coating equipment thereof. BACKGROUND

[0002] Coated paper is paper coated with a layer of coating material to improve its optical properties and printability. Its main uses are for publishing papers such as magazines and books, and for printing papers such as labels, packaging, and catalogues, with a ratio of about 1:3. Coated paper can be broadly divided into: art paper, coated paper, and light weight coated paper.

[0003] In the prior art, a surface coating packaging paper flattening equipment is disclosed in application No. 201820464122.X, which comprises a base, a conveying mechanism arranged on the top of the base, supports fixed on the top of the base on both sides, a rectangular groove arranged on the top of the horizontal plate of the support, a first driving motor fixed on the inner wall of one side of the rectangular groove through locking bolts, a threaded sleeve connected to the output shaft of the first driving motor, mounting blocks threadedly connected to the two sides of the threaded sleeve, fixed rods hingedly connected to the side surfaces of the two mounting blocks on the side close to each other, a fixed plate arranged on the bottom of the two fixed rods, pressure rollers arranged on the bottom of the fixed plate on both sides, a dust cover threadedly connected to the inner bottom wall of the horizontal plate of the support, an opening arranged on the top of the dust cover, a dust plate arranged in the opening, connecting blocks fixed on the side surfaces of the dust plate on both sides, and recesses arranged on the two sides of the dust cover and located on the two sides of the connecting blocks.

[0004] However, the above-mentioned patent cannot compact the packaging paper during the winding process, and the above-mentioned equipment is prone to cause uneven coating during the compacting or coating process, thereby affecting the coating efficiency of the paper and causing waste of the paper. SUMMARY

[0005] The present application aims to provide a waterproof coating for packaging paper and a surface coating equipment thereof to solve the problems in the prior art.

[0006] The object of the present application can be achieved by the following technical solutions.

[0007] A waterproof coating for packaging paper, the waterproof coating for packaging paper comprises the following components by weight percentage:

[0008] water-based acrylic resin: 50-60%, paraffin emulsion: 10-15%, organic silicon waterproof agent: 5-10%, calcium carbonate: 5-10%, talc powder: 3-5%, dispersing agent: 0.5-1%, defoaming agent: 0.2-0.5%, thickening agent: 0.5-1%, preservative: 0.1-0.3%, and water: 10-20%;

[0009] The waterproof coating is obtained by mixing the base material, adding waterproof agent, adding filler, adding auxiliary agent, adjusting viscosity, filtering and packaging.

[0010] Preferably, the surface coating equipment for packaging paper applies the waterproof coating for packaging paper to the packaging paper, and comprises a base plate, a plurality of support columns fixedly connected to one side of the top end of the base plate, a plurality of feeding rollers rotatably connected to one side of the support columns, a plurality of support rods fixedly connected to the other side of the top end of the support columns, a plurality of coating machines fixedly connected to the top end of the support rods, an auxiliary mechanism fixedly connected to the side of the support rods away from the coating machines, a guide roller one movably connected to the side of the support rods away from the auxiliary mechanism, a guide roller two rotatably connected to the other side of the support columns, a triangular support plate fixedly connected to the side of the base plate away from the support columns, a plurality of mounting plates fixedly connected to the top end of the inner wall of the triangular support plate, a plurality of locking rings fixedly connected to the inner wall of the mounting plates, a guide roller three movably connected to the inside of one of the locking rings, and a compaction mechanism movably connected to the inside of the other two locking rings.

[0011] Preferably, the auxiliary mechanism comprises an auxiliary box fixedly connected to the top end of the support rod, a plurality of auxiliary plates symmetrically arranged inside the auxiliary box, a scraper slidably connected to one side of the auxiliary plates for scraping off excess coating, a screw fixedly connected to the top end of the scraper for adjusting the scraper, a gear one threadedly connected to the top end of the screw, a gear two rotatably connected to the side of the auxiliary plate away from the gear one, the gear one and the gear two being engaged with each other, a motor one fixedly connected to the axis of the gear two at the output end of the auxiliary mechanism, the motor one being fixedly connected to one side of the top end of the auxiliary plate, a plurality of springs one fixedly connected to the outer wall of the auxiliary plates arranged in a stack, the other ends of the springs one being fixedly connected to the inside of the auxiliary box on the upper and lower sides, a motor push rod arranged on the opposite side of the symmetrically arranged springs one, the fixed end of the motor push rod being fixedly connected to the top end of the auxiliary box, and the top end of one of the auxiliary plates being fixedly connected to the output end of the motor push rod.

[0012] Preferably, the outer walls of the two auxiliary plates arranged opposite to each other are provided with a movable groove, and the movable groove is movably connected to an auxiliary roller for leveling the excess coating.

[0013] Preferably, the symmetrically arranged cams have transmission rods hinged to both outer sides, and the symmetrically arranged auxiliary plates are hinged to one end of the transmission rods on both sides. The outer wall of the auxiliary box is provided with a viewing window for easy adjustment by personnel.

[0014] Preferably, the compaction mechanism includes a sleeve, and a set of symmetrical transmission rings are movably connected to the outer wall of the sleeve. The outer wall of the sleeve has a through groove. A negative magnet is fixedly connected to the top of the symmetrically arranged rings. Damping telescopic rods are fixedly connected to both sides of the inside of the sleeve, and a negative magnet is fixedly connected to the output end of the damping telescopic rod. The negative magnet is movably connected to the inside of the sleeve. A spring is fixedly connected to one side of the negative magnet, and the other end of the spring is fixedly connected to the inner wall of the sleeve. A folding rod is hinged to the bottom end of the transmission ring.

[0015] Preferably, the compaction mechanism further includes a pressure plate hinged to the bottom end of the folding rod, the bottom end of the pressure plate having a groove, and multiple compaction rollers being rotatably connected inside the groove.

[0016] Preferably, the compaction roller is movably connected to the outer wall of the take-up roller, and the take-up roller is movably connected to the inner opposite side of the mounting plate.

[0017] Preferably, the drying mechanism includes a connecting shell with an internal cavity. The inner wall of the connecting shell has multiple sets of symmetrical through holes, and nozzles are installed inside the through holes. The connecting shell is fixedly connected to the opposite side of the bottom end of the mounting plate. Both sides of the connecting shell have slots, and transition rollers are rotatably connected inside the slots.

[0018] Preferably, the drying mechanism further includes a warm air blower, the output end of which is fixedly connected to the inside of the connecting shell via a pipe, and the blower is fixedly connected to the outer wall of the mounting plate.

[0019] The beneficial effects of this invention are:

[0020] 1. This invention involves attaching an auxiliary roller to the surface of the packaging paper. Then, motor one can be controlled to drive gear two to rotate. When gear two rotates, it will drive gear one to move. Gear one will then drive the screw to move downward under the action of the thread. At the same time, the scraper will also move downward. The operator can observe through the window and adjust the scraper to a suitable height to scrape off the excess material on the finished packaging. At the same time, the auxiliary roller can be used to spread the excess material on the packaging paper evenly, improving the smoothness of the coating.

[0021] 2. In this invention, negative magnet one and negative magnet two repel each other, and at the same time, the damping telescopic rod provides a certain force to the lower folding rod, so that the compacting roller is pressed tightly against the surface of the packaging paper, thereby improving the precision of the bonding and preventing the packaging paper from folding or wrinkling during the winding process, which would cause damage to the packaging paper.

[0022] 3. This invention controls the operation of a warm air blower, which delivers warm air through pipes to the inside of the connecting shell, and then sprays it out through nozzles from the connecting shell, thereby drying the surface of the coated packaging paper. At the same time, the transition roller can prevent the packaging paper from folding during the drying process, thus preventing incomplete drying of the packaging paper. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a side view of the present invention;

[0026] Figure 3 This is an exploded structural diagram of the auxiliary mechanism of the present invention;

[0027] Figure 4 This is the present invention. Figure 3 A schematic diagram of the side view structure;

[0028] Figure 5 This is a schematic diagram of the structure of the triangular support plate machine connector of the present invention;

[0029] Figure 6 This is the present invention. Figure 5 A schematic diagram of the side view structure;

[0030] Figure 7 This is the present invention. Figure 5 Enlarged structural diagram at point A

[0031] Figure 8 This is the present invention. Figure 5 Enlarged structural diagram at point B

[0032] Figure 9 This is the present invention. Figure 5 A magnified structural diagram at point C.

[0033] 1. Base plate; 2. Support column; 3. Feeding roller; 4. Support rod; 5. Coating machine; 6. Guide roller one; 7. Guide roller two; 8. Triangular support plate; 9. Mounting plate; 10. Auxiliary mechanism; 1001. Auxiliary box; 1002. Auxiliary plate; 1003. Scraper; 1004. Screw; 1005. Gear one; 1006. Gear two; 1007. Motor one; 1008. Spring one; 1009. Electric push rod; 1010. Auxiliary roller; 1011. Cam; 1012. Transmission rod; 11. Locking ring; 2. Guide roller three; 13. Compacting mechanism; 1301. Sleeve; 1302. Transmission ring; 1303. Negative magnet one; 1304. Damping telescopic rod; 1305. Negative magnet two; 1306. Spring two; 1307. Folding rod; 1308. Pressure plate; 1309. Compacting roller; 14. Drying mechanism; 1401. Connecting shell; 1402. Through hole; 1403. Nozzle; 1404. Transition roller; 1405. Warm air blower; 15. Take-up roller; 16. Motor two; 17. Movable groove; 18. Viewing window. Detailed Implementation

[0034] 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.

[0035] A waterproof coating for packaging paper, wherein the waterproof coating for packaging paper comprises the following components by weight percentage:

[0036] Water-based acrylic resin: 50-60%, paraffin emulsion: 10-15%, silicone waterproofing agent: 5-10%, calcium carbonate: 5-10%, talc: 3-5%, dispersant: 0.5-1%, defoamer: 0.2-0.5%, thickener: 0.5-1%, preservative: 0.1-0.3%, water: 10-20%;

[0037] The above materials are processed through the following steps: mixing the base material, adding the waterproofing agent, adding the filler, adding the additives, adjusting the viscosity, filtering, and packaging to obtain the waterproof coating.

[0038] In this embodiment, the following ratio is used as an example;

[0039] Water-based acrylic resin: 55%; paraffin emulsion: 12%; silicone waterproofing agent: 8%; calcium carbonate: 8%; talc: 4%; dispersant: 0.7%; defoamer: 0.3%; thickener: 0.7%; preservative: 0.2%; water: 15%.

[0040] The preparation method is as follows:

[0041] Step 1: Mixing the base material: Add water-based acrylic resin to a mixing container and stir at low speed; Step 2: Adding the waterproofing agent: Slowly add paraffin emulsion and silicone waterproofing agent, and stir until homogeneous; Step 3: Adding the filler: Gradually add calcium carbonate and talc powder, and continue stirring until homogeneous; Step 4: Adding the additives: Add dispersant, defoamer, thickener, and preservative in sequence, and stir until homogeneous; Step 5: Adjusting the viscosity: Add an appropriate amount of water to adjust the coating to a suitable viscosity; Step 6: Filtration: Filter the coating with a filter screen to remove impurities; Step 7: Packaging: Pack the coating into a sealed container to avoid contamination.

[0042] A surface coating device for packaging paper, wherein the surface coating device applies the aforementioned waterproof coating material to the packaging paper, the surface coating device includes a base plate 1, a set of symmetrical support columns 2 are fixedly connected to one side of the bottom top of the base plate 1, and two sets of upper and lower feeding rollers 3 are rotatably connected to one side of the support columns 2, a set of symmetrical support rods 4 are fixedly connected to the top of the other side of the support columns 2, and multiple coating machines 5 for applying waterproof coating are fixedly connected to the top of the support rods 4, and an auxiliary mechanism 10 is fixedly connected to the side of the support rods 4 away from the coating machines 5.

[0043] The base plate 1 effectively ensures that the height difference of the ground will not affect the equipment above, thus preventing tilting. Then, the support column 2 divides the coating machine 5 into upper and lower parts, thereby improving the utilization rate of the equipment. After the feeding roller 3 conveys the packaging paper through the coating machine 5, the auxiliary mechanism 10 will optimize the packaging paper again, thereby ensuring the coating quality of the packaging paper.

[0044] like Figure 2 and Figures 3-4As shown, the auxiliary mechanism 10 includes an auxiliary box 1001 fixedly connected to the top of the support rod 4. Inside the auxiliary box 1001 is a set of vertically symmetrical auxiliary plates 1002. A scraper 1003 for removing excess paint is slidably connected to one side of each auxiliary plate 1002. A screw 1004 for adjusting the scraper 1003 is fixedly connected to the top of the scraper 1003, and the top of the screw 1004 extends beyond the top of the auxiliary plate 1002. A gear 1005 is threaded onto the wall of the auxiliary plate 1002. A gear 1006 is rotatably connected to the side of the auxiliary plate 1002 away from the gear 1005. The gear 1005 and the gear 1006 mesh. The auxiliary mechanism 10 also includes a motor 1007 whose output end is fixedly connected to the shaft of the gear 1006. The motor 1007 is fixedly connected to one side of the top of the auxiliary plate 1002. A set of symmetrical springs 10 are fixedly connected to the outer wall of the auxiliary plate 1002, which is arranged in a stacked manner. 08, and the other end of spring 1008 is fixed to the upper and lower sides of the inside of auxiliary box 1001 respectively. Electric push rods 1009 are provided on the opposite sides of spring 1008 which are symmetrically arranged. The fixed end of electric push rod 1009 is fixedly connected to the top of auxiliary box 1001. The top of one of the auxiliary plates 1002 is fixedly connected to the output end of electric push rod 1009. The outer walls of the two auxiliary plates 1002 which are symmetrically arranged are provided with movable grooves 17. The inside of the movable grooves 17 is movably connected to an auxiliary roller 1010 for leveling excess paint. The inner wall of auxiliary box 1001 is provided with a set of front and rear symmetrical sliding grooves. The inside of each sliding groove is rotatably connected to a set of front and rear symmetrical cams 1011 through a shaft. The outer sides of the symmetrically arranged cams 1011 are hinged to transmission rods 1012. The two sides of the symmetrically arranged auxiliary plates 1002 are respectively hinged to one end of the transmission rods 1012. The outer wall of auxiliary box 1001 is provided with a viewing window 18 for easy adjustment by personnel.

[0045] When using the device, the operator first controls the movement of the electric push rod 1009. When the electric push rod 1009 moves, it drives the upper auxiliary plate 1002 to move downward. At this time, the upper auxiliary plate 1002 drives the cam 1011 to rotate through the transmission rod 1012, which in turn drives the lower auxiliary plate 1002 to move upward through the lower transmission rod 1012. This adjusts the upper and lower auxiliary rollers 1010 to be closer together, so that the auxiliary rollers 1010 are in contact with the surface of the packaging paper. Then, the operator controls the motor 1007 to drive the gear 2 1006 to rotate. When the gear 2 1006 rotates, it drives the gear 1005 to move. The gear 1005, under the action of the thread, drives the screw 1004 to move downward. At the same time, the scraper 1003 also moves downward. The operator observes through the viewing window 18 and adjusts the scraper 1003 to a suitable height, thereby scraping off the excess material on the finished packaging. At the same time, the auxiliary rollers 1010 can spread the excess material on the packaging paper evenly, improving the smoothness of the coating.

[0046] The support rod 4 is movably connected to a guide roller 6 on the side away from the auxiliary mechanism 10, and the other side of the support column 2 is rotatably connected to a guide roller 7. The bottom plate 1 is fixedly connected to a triangular support plate 8 on the side away from the support column 2, and a set of symmetrical mounting plates 9 are fixedly connected to the inner wall of the top of the triangular support plate 8, and multiple locking rings 11 are fixedly connected to the inner wall of the mounting plate 9.

[0047] Guide roller 6 and guide roller 7 can assist in the direction of the packaging paper, thereby preventing wear and tear on the packaging paper during subsequent processing, which would lead to waste of raw materials. Triangular support plate 8 can provide sufficient stability for winding roller 15, preventing shaking during winding and damage to the packaging paper. At the same time, locking ring 11 can facilitate personnel to replace winding roller 15.

[0048] One of the locking rings 11 is movably connected to a guide roller 12, and the other two locking rings 11 are movably connected to a compaction mechanism 13. The bottom end of the mounting plate 9 is fixedly connected to a drying mechanism 14 for drying waterproof coating. The opposite sides of the interior of the mounting plate 9 are movably connected to a winding roller 15. The outer wall of the triangular support plate 8 is fixedly connected to a motor 16.

[0049] The guide roller 12 allows the paper to enter the drying mechanism 14 smoothly, while the drying mechanism 14 can quickly dry the coating, thereby preventing the packaging paper from sticking during the winding process. At the same time, the compaction mechanism 13 above can help the packaging paper adhere to the winding roller 15, thereby preventing it from becoming loose when transferring the winding roller 15. The motor 16 can more easily wind up the packaging paper.

[0050] like Figures 3-4As shown in Figures 8-9, the compaction mechanism 13 includes a sleeve 1301. A set of symmetrical transmission rings 1302 are movably connected to the outer wall of the sleeve 1301. The outer wall of the sleeve 1301 has a through groove. A negative magnet 1303 is fixedly connected to the top of the symmetrically arranged rings. Damping telescopic rods 1304 are fixedly connected to both sides of the inside of the sleeve 1301. A negative magnet 1305 is fixedly connected to the output end of the damping telescopic rod 1304. The negative magnet 1303 is movably connected inside the sleeve 1301. One side of 03 is fixedly connected to a spring 1306, and the other end of the spring 1306 is fixedly connected to the inner wall of the sleeve 1301. The bottom end of the transmission ring 1302 is hinged to a folding rod 1307. The compaction mechanism 13 also includes a pressure plate 1308 hinged to the bottom end of the folding rod 1307. The bottom end of the pressure plate 1308 is provided with a groove. Multiple compaction rollers 1309 are rotatably connected inside the groove. The compaction rollers 1309 are movably connected to the outer wall of the winding roller 15. The winding roller 15 is movably connected to the opposite side inside the mounting plate 9.

[0051] When motor 16 drives the take-up roller 15 to rotate, as the amount of packaging paper on the take-up roller 15 gradually increases, the pressure plate 1308 will also rise accordingly. The negative magnet 1303 and the negative magnet 2 set above will repel each other. At the same time, the damping telescopic rod 1304 will provide a certain force to the folding rod 1307 below, so that the compacting roller 1309 is pressed tightly against the surface of the packaging paper, thereby improving the precision of the bonding and preventing the packaging paper from folding or wrinkling during the winding process of the take-up roller 15, which would cause damage to the packaging paper.

[0052] like Figures 5-7 As shown, the drying mechanism 14 includes a connecting shell 1401, which has a hollow interior. The inner wall of the connecting shell 1401 has multiple sets of symmetrical through holes 1402, and nozzles 1403 are installed inside the through holes 1402. The connecting shell 1401 is fixedly connected to the opposite side of the bottom end of the mounting plate 9. Both sides of the connecting shell 1401 have slots, and transition rollers 1404 are rotatably connected inside the slots. The drying mechanism 14 also includes a warm air blower 1405. The output end of the warm air blower 1405 is fixedly connected to the interior of the connecting shell 1401 through a pipe, and the blower is fixedly connected to the outer wall of the mounting plate 9.

[0053] As the packaging paper passes through the drying mechanism 14, the operation of the warm air blower 1405 is controlled. The warm air blower 1405 delivers warm air through the pipe to the interior of the connecting shell 1401, and then the connecting shell 1401 sprays it out through the nozzle 1403, thereby drying the surface of the packaging paper after coating. At the same time, the transition roller 1404 can prevent the packaging paper from folding during the drying process, which would result in incomplete drying of the packaging paper.

[0054] The working principle is as follows:

[0055] First, the packaging paper raw material passes through the coating machine 5 via the feeding roller 3, and then through the auxiliary mechanism 10. After passing through the guide roller 1 6, guide roller 2 7, and guide roller 3 12, it passes through the drying mechanism 14 and is then fixed on the take-up roller 15. At this point, the auxiliary mechanism 10 can be controlled to adhere to the surface of the packaging paper, thereby performing secondary processing on the surface of the coated packaging paper through the auxiliary mechanism 10, thus improving the efficiency of the coating process. Afterward, the surface of the packaging paper is dried by the drying mechanism 14 to prevent sticking during the subsequent winding process. During the winding process of the take-up roller 15, the compaction mechanism 13 will compact the wound packaging paper to prevent loosening during the transfer process and to prevent folding during the winding process.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A waterproof coating for packaging paper, characterized in that, The waterproof coating for packaging paper comprises the following components by weight percentage: Water-based acrylic resin: 50-60%, paraffin emulsion: 10-15%, silicone waterproofing agent: 5-10%, calcium carbonate: 5-10%, talc: 3-5%, dispersant: 0.5-1%, defoamer: 0.2-0.5%, thickener: 0.5-1%, preservative: 0.1-0.3%, water: 10-20%; The above materials are processed through the following steps: mixing the base material, adding the waterproofing agent, adding the filler, adding the additives, adjusting the viscosity, filtering, and packaging to obtain the waterproof coating.

2. A packaging paper surface coating device, wherein the surface coating device applies the waterproof coating for packaging paper as described in claim 1 to the packaging paper, the surface coating device comprising a base plate (1), characterized in that, A set of symmetrical support columns (2) is fixedly connected to one side of the bottom end of the base plate (1), and two sets of upper and lower feeding rollers (3) are rotatably connected to one side of the support column (2). A set of symmetrical support rods (4) is fixedly connected to the top of the other side of the support column (2). Multiple coating machines (5) for applying waterproof coating are fixedly connected to the top of the support rod (4). An auxiliary mechanism (10) is fixedly connected to the side of the support rod (4) away from the coating machine (5). A guide roller (6) is movably connected to the side of the support rod (4) away from the auxiliary mechanism (10). A guide roller (7) is rotatably connected to the other side of the support column (2). A triangular support plate (8) is fixedly connected to the side of the base plate (1) away from the support column (2), and a set of symmetrical mounting plates (9) is fixedly connected to the inner wall of the top of the triangular support plate (8). Multiple locking rings (11) are fixedly connected to the inner wall of the mounting plate (9). A guide roller (12) is movably connected inside one of the locking rings (11), and a compaction mechanism (13) is movably connected inside the other two locking rings (11). A drying mechanism (14) for drying waterproof coating is fixedly connected to the bottom end of the mounting plate (9). A winding roller (15) is movably connected to the opposite side inside the mounting plate (9). A motor (16) is fixedly connected to the outer wall of the triangular support plate (8).

3. The packaging paper surface coating equipment according to claim 2, characterized in that, The auxiliary mechanism (10) includes an auxiliary box (1001) fixedly connected to the top of the support rod (4). A set of symmetrical auxiliary plates (1002) are provided inside the auxiliary box (1001). A scraper (1003) for scraping off excess paint is slidably connected to one side of the auxiliary plate (1002). A screw (1004) for adjusting the scraper (1003) is fixedly connected to the top of the scraper (1003). The top of the screw (1004) extends to the outside of the top of the auxiliary plate (1002). A gear one (1005) is threadedly connected to the outer wall of the top of the screw (1004). A gear two (1006) is rotatably connected to the side of the auxiliary plate (1002) away from the gear one (1005). The gear one (1005) and the gear two (1006) mesh with each other. The auxiliary mechanism (10) also includes a motor (1007) whose output end is fixedly connected to the shaft of gear two (1006). The motor (1007) is fixedly connected to the top of the auxiliary plate (1002). A set of symmetrical springs (1008) are fixedly connected to the outer wall of the auxiliary plate (1002) which is stacked. The other end of the springs (1008) is fixedly fixed to the upper and lower sides of the inside of the auxiliary box (1001). An electric push rod (1009) is provided on the opposite side of the symmetrically arranged springs (1008). The fixed end of the electric push rod (1009) is fixedly connected to the top of the auxiliary box (1001). The top of one of the auxiliary plates (1002) is fixedly connected to the output end of the electric push rod (1009).

4. The packaging paper surface coating equipment according to claim 3, characterized in that, The outer walls of the two auxiliary plates (1002) arranged opposite each other are provided with movable grooves (17). The interior of the movable grooves (17) is movably connected to an auxiliary roller (1010) for leveling excess paint. The inner wall of the auxiliary box (1001) is provided with a set of front-to-back symmetrical sliding grooves. The interior of each sliding groove is rotatably connected to a set of front-to-back symmetrical cams (1011) via a shaft.

5. The packaging paper surface coating equipment according to claim 3, characterized in that, The symmetrically arranged cam (1011) has a transmission rod (1012) hinged to both sides of its outer side. The symmetrically arranged auxiliary plate (1002) is hinged to one end of the transmission rod (1012) on both sides. The outer wall of the auxiliary box (1001) is provided with a viewing window (18) for easy adjustment by personnel.

6. The packaging paper surface coating equipment according to claim 2, characterized in that, The compaction mechanism (13) includes a sleeve (1301). A set of symmetrical transmission rings (1302) are movably connected to the outer wall of the sleeve (1301). The outer wall of the sleeve (1301) has a through groove. A negative magnet (1303) is fixedly connected to the top of the symmetrically arranged rings. Damping telescopic rods (1304) are fixedly connected to both sides of the inside of the sleeve (1301). A negative magnet (1305) is fixedly connected to the output end of the damping telescopic rod (1304). The negative magnet (1303) is movably connected to the inside of the sleeve (1301). A spring (1306) is fixedly connected to one side of the negative magnet (1303). The other end of the spring (1306) is fixedly connected to the inner wall of the sleeve (1301). A folding rod (1307) is hinged to the bottom end of the transmission ring (1302).

7. The packaging paper surface coating equipment according to claim 6, characterized in that, The compaction mechanism (13) also includes a pressure plate (1308) hinged to the bottom end of the folding rod (1307). The bottom end of the pressure plate (1308) has a groove, and multiple compaction rollers (1309) are rotatably connected inside the groove.

8. The packaging paper surface coating equipment according to claim 7, characterized in that, The compaction roller (1309) is movably connected to the outer wall of the winding roller (15), and the winding roller (15) is movably connected to the opposite side of the interior of the mounting plate (9).

9. The packaging paper surface coating equipment according to claim 2, characterized in that, The drying mechanism (14) includes a connecting shell (1401), which has a cavity inside. The inner wall of the connecting shell (1401) is provided with multiple sets of through holes (1402) symmetrically arranged on the upper and lower sides. The nozzles (1403) are provided inside the through holes (1402). The connecting shell (1401) is fixedly connected to the opposite side of the bottom end of the mounting plate (9). The connecting shell (1401) has slots on both sides, and transition rollers (1404) are rotatably connected inside the slots.

10. A packaging paper surface coating device according to claim 9, characterized in that, The drying mechanism (14) also includes a heater (1405), the output end of which is fixedly connected to the inside of the connecting shell (1401) through a pipe, and the fan is fixedly connected to the outer wall of the mounting plate (9).

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