Environment-friendly plate roller capable of controlling coating dosage

Abstract

The invention relates to the technical field of printing rollers, in particular to an environment-friendly printing roller capable of controlling coating dosage, which comprises a rotating roller, connecting shafts are coaxially and fixedly connected to two ends of the rotating roller, the rotating roller is hollow to form a material cavity, a plurality of discharge ports are uniformly formed in the inner wall of the material cavity in a symmetrical structure, and sealing mechanisms are arranged in the discharge ports and seal the discharge ports. A bottom plate is rotatably connected to the lower portion of the rotating roller and is of an arc-shaped structure with an upward concave face, the two ends of the bottom plate are in sliding contact with the outer wall of the rotating roller, the middle of the concave face of the bottom plate is in clearance fit with the outer wall of the rotating roller, and a feeding mechanism is arranged at the end, away from the rotating roller, of one connecting shaft; a threaded cover is in threaded connection in the threaded hole. According to the coating device, the amount of coating attached to the outer wall of the rotating roller can be controlled, the auxiliary feeding effect can be achieved, the fineness of the coating process is enhanced, waste of the coating is reduced, and meanwhile consumption of manpower and material resources is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plate rollers, in particular to an environmentally friendly plate roller capable of controlling the amount of coating. Background Art

[0002] Solvent-based ink is an important raw material for ink in the current domestic gravure printing industry. Although most of the solvents used in inks can be removed, there will still be a small amount of solvent that will cause damage to the body. Therefore, water-based inks have gradually replaced solvent-based inks and become an important main raw material for the gravure printing industry.

[0003] At present, when the roller coating process is used for coating production, water-based ink coating is used. In the current coating process, the staff generally sets a container under the roller and fills it with ink coating, and then immerses the lower part of the roller in the ink coating. In this way, the roller will first adhere the ink coating to the surface of the glue layer during rotation, and the water-based ink coating will be transferred to the surface of the material to be coated after the roller rotates to the other side.

[0004] The existing method is easy to operate and is convenient and fast, but the paint attached to the surface of the plate roller by the rotation of the plate roller in the paint is uncontrollable, and the thickness of the paint at each location is difficult to control. This error will have an adverse effect on the coating process, and the staff needs to pay attention to the amount of paint in the material tank at all times during the processing. It is necessary to ensure that the lower part of the plate roller is always below the paint liquid level. Although the feeding and supervision work are simple, the operation requires fixed manpower input, which is not conducive to improving production efficiency. In view of this, the present invention proposes an environmentally friendly plate roller with controllable paint dosage. Summary of the invention

[0005] Technical issues solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an environmentally friendly plate roller capable of controlling the amount of coating, which can effectively solve the problems in the prior art.

[0007] Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The present invention provides an environmentally friendly plate roller capable of controlling the amount of coating, comprising a rotating roller, both ends of which are coaxially fixedly connected with a connecting shaft, the interior of the rotating roller is hollow to form a material cavity, and the inner wall of the material cavity is symmetrically structured and evenly provided with a plurality of discharge ports;

[0010] A closing mechanism is provided inside the discharge port, and the closing mechanism seals the discharge port;

[0011] A bottom plate is rotatably connected below the rotating roller, the bottom plate is an arc-shaped structure with the concave surface facing upward and both ends of the bottom plate are in sliding contact with the outer wall of the rotating roller, and the middle of the concave surface of the bottom plate is in clearance with the outer wall of the rotating roller;

[0012] A feeding mechanism is arranged at one end of one of the connecting shafts away from the rotating roller, and the feeding mechanism injects coating into the material cavity. A threaded hole is penetrated through one side of the front wall of the rotating roller, and a threaded cover is threadedly connected in the threaded hole.

[0013] Preferably, the closing mechanism includes a movable plate, and the movable plate and the discharge port are both T-shaped structures with a larger inside and a smaller outside and are plug-matched. The outer wall of the movable plate is an arc structure and is flush with the outer wall of the rotating roller. Two slots are symmetrically provided on the inner wall of the discharge port, and plug blocks are provided at both ends of the movable plate to plug into the slots.

[0014] Preferably, two extrusion plates are symmetrically fixed at both ends of the movable plate, and the inner wall of the material cavity is provided with a plate groove that slides with the extrusion plate. The extrusion plate and the plate groove are both L-shaped structures. The extrusion plate extends from the end away from the material cavity through the plate groove to the outside of the rotating roller. The extrusion plate is an arc-shaped structure at the end away from the material cavity, and a plurality of supporting springs are fixed between the inner wall of the extrusion plate and the inner wall of the plate groove.

[0015] Preferably, two fixed plates are symmetrically fixed at both ends of the top surface of the bottom plate, both of which are circular structures and are coaxially rotatably connected to two connecting shafts respectively, and two adapter rings are symmetrically fixed on the top surface of the bottom plate, the two adapter rings are coaxially sleeved on the outside of the rotating roller and rotatably connected to the rotating roller, and the diameters at both ends of the rotating roller are smaller than the middle diameter.

[0016] Preferably, a limit ring is coaxially fixed to the upper part of the inner wall of the fixed plate, and the outer wall of the limit ring is in sliding contact with the inner wall of the extrusion plate. A support plate is fixed to the front side of the lower part of the fixed plate, and the top surface of the support plate is an arc surface structure and is in extrusion contact with the outer wall of the extrusion plate. An arc plate is fixed to the rear end of the support plate, and the support plate makes the extrusion plate slide inward along the plate groove, and the arc plate is in sliding contact with the outer wall of the extrusion plate.

[0017] Preferably, the feeding mechanism includes a feeding pipe, the opening end of the feeding pipe close to the feeding chamber is a truncated cone structure, the opening end of the feeding pipe close to the feeding chamber is slidably provided with a first partition, a plurality of first return springs are evenly fixed between the first partition away from the side wall of the feeding chamber and the inner wall of the feeding pipe, the feeding pipe is coaxially rotatably connected with the connecting shaft on the same side thereof, the feeding pipe is connected with a metal hose at the end away from the rotating roller, a circular cavity is opened in the rotating roller at a position relative to the feeding pipe, the circular cavity is a smaller T-shaped cylindrical structure close to one end of the feeding chamber, the end of the feeding pipe passes through the side wall of the rotating roller, extends to the inside of the circular cavity, and is coaxially rotatably connected with the rotating roller.

[0018] Preferably, a baffle is sleeved on the end of the feed pipe at the position where the circular cavity is reduced in diameter, and the baffle is a three-quarter cylindrical structure. The arc outer wall of the baffle is in sliding contact with the inner wall of the circular cavity, and the inner wall of the circular cavity is symmetrically provided with a plurality of side grooves at one end away from the feed cavity. The positions of the plurality of side grooves correspond one-to-one to the positions of the plurality of plate grooves close to the side of the feed pipe, and a piston plate that slides with the side groove is provided at the outer end of the side groove, and two sliding rods are fixed between the piston plate and the corresponding extrusion plate, and the outer end of the sliding rod passes through the inner wall of the side groove, extends to the inside of the plate groove, and is slidingly connected to the rotating roller.

[0019] Preferably, a plurality of connecting grooves are arranged in a ring shape between the circular cavity and the material cavity, a second partition is slidably provided on the inner wall of the material cavity relative to the positions of the plurality of connecting grooves, the second partition is an annular structure, a plurality of limit plates are fixedly provided around the inner wall of the material cavity relative to the second partition and slidably cooperate with the second partition, a plurality of circular grooves are evenly provided on one side of the second partition close to the connecting grooves, and a second return spring is fixedly provided between the inner wall of the circular groove and the inner wall of the material cavity.

[0020] Preferably, a fixed shaft is coaxially fixed to the side of the baffle plate close to the material chamber, the connection between the fixed shaft and the baffle plate is an L-shaped structure and is staggered with the opening end of the feed pipe, the fixed shaft coaxially penetrates the inner wall of the circular cavity at one end away from the baffle plate, extends to the inside of the material chamber and is rotatably connected to a rotating roller, a plurality of guide plates are evenly fixed in a spiral shape on the outer wall of the fixed shaft relative to the inside of the material chamber, one of the connecting shafts is coaxially fixedly connected to the end away from the rotating roller, a bearing seat is sleeved on the outer end of the outer wall of the connecting shaft, a fixing ring is fixed to the outer wall of the fixing plate, connecting plates are fixed to the upper and lower ends of the fixing ring, a support frame is fixed to the outer wall of the fixing ring close to the feed pipe, and the middle part of the support frame is sleeved on the end of the feed pipe.

[0021] Beneficial Effects

[0022] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0023] The present invention is provided with a feeding mechanism and a closing mechanism, and the rotation of the rotating roller drives the opening and closing of the movable plate to control the amount of paint in and out. Combined with the setting of the bottom plate, the device can not only control the amount of paint attached to the outer wall of the rotating roller, but also assist in feeding, which not only enhances the fineness of the coating process, but also reduces the waste of paint, and at the same time effectively reduces the consumption of manpower and material resources, and the design is ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the decomposition structure of the present invention;

[0027] Figure 3 It is a cross-sectional structural schematic diagram of the present invention;

[0028] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the movable plate of the present invention;

[0030] Figure 6 It is a schematic diagram of the cross-sectional structure of the end of the rotating roller of the present invention;

[0031] Figure 7 It is a schematic diagram of the side cross-sectional structure of the rotating roller of the present invention;

[0032] Figure 8 It is a schematic diagram of the cross-sectional structure of the feed pipe of the present invention.

[0033] The numbers in the figure represent: 1, rotating roller; 2, connecting shaft; 3, material chamber; 4, discharge port; 5, closing mechanism; 6, bottom plate; 7, feeding mechanism; 8, movable plate; 9, slot; 10, plug block; 11, extrusion plate; 12, plate groove; 13, support spring; 14, fixed plate; 15, adapter ring; 16, limit ring; 17, support plate; 18, arc plate; 19, feeding pipe; 20, first partition; 21, first Return spring; 22. Metal hose; 23. Circular cavity; 24. Baffle; 25. Side groove; 26. Piston plate; 27. Slide rod; 28. Connecting groove; 29. ​​Second partition; 30. Limit plate; 31. Circular groove; 32. Second return spring; 33. Fixed shaft; 34. Guide plate; 35. Flange; 36. Bearing seat; 37. Fixed ring; 38. Connecting plate; 39. Support frame; 40. Threaded hole; 41. Threaded plug. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Environmentally friendly plate roller that can control the amount of paint, reference Figure 1-Figure 8 , comprising a rotating roller 1, both ends of the rotating roller 1 are coaxially fixedly connected with a connecting shaft 2, the interior of the rotating roller 1 is hollow to form a material cavity 3, and the inner wall of the material cavity 3 is symmetrically structured and evenly provided with multiple discharge ports 4;

[0036] A closing mechanism 5 is provided inside the discharge port 4, and the closing mechanism 5 seals the discharge port 4. The closing mechanism 5 includes a movable plate 8. The movable plate 8 and the discharge port 4 are both T-shaped structures with a large inner side and a small outer side and are plugged in. The outer wall of the movable plate 8 is an arc surface structure and is flush with the outer wall of the rotating roller 1. Two slots 9 are symmetrically provided on the inner wall of the discharge port 4. Both ends of the movable plate 8 are provided with plug blocks 10 that are plugged in and matched with the slots 9. Two extrusion plates 11 are symmetrically fixed at both ends of the movable plate 8. A plate groove 12 that is slidably matched with the extrusion plate 11 is provided on the inner wall of the material cavity 3. The extrusion plate 11 and the plate groove 12 are both L-shaped structures. The end of the extrusion plate 11 away from the material cavity 3 passes through the plate groove 12 and extends to the outer side of the rotating roller 1. The end of the extrusion plate 11 away from the material cavity 3 is an arc structure. Multiple Support spring 13, two fixed plates 14 are symmetrically fixed at both ends of the top surface of the bottom plate 6, both of which are circular structures and are coaxially rotatably connected with the two connecting shafts 2 respectively, two adapter rings 15 are symmetrically fixed on the top surface of the bottom plate 6, the two adapter rings 15 are coaxially sleeved on the outside of the rotating roller 1 and are rotatably connected with the rotating roller 1, the diameters of the two ends of the rotating roller 1 are smaller than the diameter of the middle thereof, a limiting ring 16 is coaxially fixed on the upper part of the inner wall of the fixed plate 14, the outer wall of the limiting ring 16 is in sliding contact with the inner wall of the extrusion plate 11, a supporting plate 17 is fixed on the front side of the lower part of the fixed plate 14, the top surface of the supporting plate 17 is an arc surface structure and is in extrusion contact with the outer wall of the extrusion plate 11, an arc plate 18 is fixed at the rear end of the supporting plate 17, the supporting plate 17 makes the extrusion plate 11 slide inward along the plate groove 12, and the arc plate 18 is in sliding contact with the outer wall of the extrusion plate 11;

[0037] A bottom plate 6 is rotatably connected below the rotating roller 1. The bottom plate 6 is an arc-shaped structure with the concave surface facing upward and both ends thereof are in sliding contact with the outer wall of the rotating roller 1. The middle of the concave surface of the bottom plate 6 is in clearance with the outer wall of the rotating roller 1.

[0038] A feeding mechanism 7 is arranged at one end of one of the connecting shafts 2 away from the rotating roller 1, and the feeding mechanism 7 injects coating into the material chamber 3. The feeding mechanism 7 includes a feeding pipe 19, and the opening end of the feeding pipe 19 close to the material chamber 3 is a truncated cone structure. A first partition plate 20 is slidingly arranged at the opening end of the feeding pipe 19 close to the material chamber 3. A plurality of first return springs 21 are evenly fixed between the side wall of the first partition plate 20 away from the material chamber 3 and the inner wall of the feeding pipe 19. The feeding pipe 19 is coaxially connected to the connecting shaft 2 on the same side thereof for rotation. A metal hose 22 is connected to the end of the feeding pipe 19 away from the rotating roller 1, and the rotating A circular cavity 23 is provided in the roller 1 at a position relative to the feed pipe 19. The circular cavity 23 is a smaller T-shaped cylindrical structure near one end of the feed chamber 3. The end of the feed pipe 19 penetrates the side wall of the rotating roller 1 and extends into the circular cavity 23 and is coaxially connected to the rotating roller 1. A baffle 24 is sleeved at the end of the feed pipe 19 at a position relative to the reduced diameter of the circular cavity 23. The baffle 24 is a three-quarter cylindrical structure. The arc outer wall of the baffle 24 is in sliding contact with the inner wall of the circular cavity 23. A plurality of side grooves 25 are symmetrically provided on the inner wall of the circular cavity 23 away from the feed chamber 3. The positions of the plurality of side grooves 25 are aligned with the plurality of plate grooves 1 near one side of the feed pipe 19. 2 positions correspond one to one, a piston plate 26 is provided at the outer end of the side groove 25 to slide with it, two slide bars 27 are fixed between the piston plate 26 and the corresponding extrusion plate 11, the outer end of the slide bar 27 passes through the inner wall of the side groove 25 and extends to the inside of the plate groove 12 and is slidably connected to the rotating roller 1, a plurality of connecting grooves 28 are arranged in an annular manner between the circular cavity 23 and the material cavity 3, a second partition plate 29 is slidably provided on the inner wall of the material cavity 3 relative to the position of the plurality of connecting grooves 28, the second partition plate 29 is an annular structure, and a plurality of slidingly matching second partition plates 29 are fixed around the inner wall of the material cavity 3 relative to the second partition plate 29. A limiting plate 30 and a second partition plate 29 are evenly provided with a plurality of circular grooves 31 on one side close to the connecting groove 28, a second reset spring 32 is fixedly provided between the inner wall of the circular groove 31 and the inner wall of the material chamber 3, a fixed shaft 33 is coaxially fixedly provided on the baffle plate 24 on the side close to the material chamber 3, the connection between the fixed shaft 33 and the baffle plate 24 is an L-shaped structure and is staggered with the opening end of the feed pipe 19, the fixed shaft 33 coaxially penetrates the inner wall of the circular cavity 23 away from the baffle plate 24 and extends to the inside of the material chamber 3 and is rotatably connected with the rotating roller 1, and a plurality of guide plates 34 are evenly fixedly provided on the outer wall of the fixed shaft 33 in a spiral shape relative to the inside of the material chamber 3.

[0039] One of the connecting shafts 2 is coaxially fixedly connected to a flange 35 at one end away from the rotating roller 1, a bearing seat 36 is sleeved on the outer end of the outer wall of the connecting shaft 2, a fixing ring 37 is fixedly provided on the outer wall of the fixing plate 14, connecting plates 38 are fixedly provided on the upper and lower ends of the fixing ring 37, a support frame 39 is fixedly provided on the outer wall of the fixing ring 37 close to the feed pipe 19, the middle part of the support frame 39 is sleeved on the end of the feed pipe 19, a threaded hole 40 is penetrated on one side of the front wall of the rotating roller 1, and a threaded cover 41 is threadedly connected to the inner thread of the threaded hole 40.

[0040] Working principle: the staff can connect the connecting shaft 2 on the side of the device away from the feeding mechanism 7 with the driving part on the coating equipment. The corresponding connecting shaft 2 is also provided with a flange 35 for the convenience of the staff to fix it. Then the staff can use the fixing frame or external support frame on the coating equipment to lift the bearing seats 36 on both sides, and then use the connecting plate 38 to fix the fixing ring 37, the fixing plate 14 and the bottom plate 6 at the same time to ensure that the three will not rotate synchronously during the rotation of the rotating roller 1. Similarly, the feeding pipe 19 fixed to the fixing ring 37 and the baffle 24, the fixed shaft 33 and the multiple guide plates 34 coaxially connected to the end of the feeding pipe 19 will not rotate with the rotating roller 1. After the fixing is completed, the staff can place the container filled with water-based ink paint next to the equipment, and then insert the end of the metal hose 22 away from the rotating roller 1 into the paint, and make the open end of the metal hose 22 sink to the bottom of the paint container, so as to ensure that the water-based ink paint can be smoothly injected into the rotating roller 1 during use;

[0041] After the installation and setting of the device is completed, the staff can use the driving mechanism on the coating equipment to drive the rotating roller 1 to rotate. During the rotation, multiple closing mechanisms 5 will rotate downward in sequence. When the closing mechanism 5 moves to the position corresponding to the support plate 17, the end of the extrusion plate 11 will drive the movable plate 8 to move along the discharge port 4 into the material chamber 3 under the guidance of the top surface of the support plate 17, until the position of the extrusion plate 11 corresponds to the arc plate 18, the inward movement will be completed, and then the movable plate 8 will remain in the material chamber 3 under the limiting effect of the arc plate 18 until the extrusion plate 11 and the arc plate 18 are offset. After the extrusion plate 11 loses its limit, it will return to its original position under the rebound force of the support spring 13, and then the discharge port 4 will be blocked by the movable plate 8 again, and the discharge port 4 and the movable plate 8 are respectively provided with a slot 9 and an insert block 10, both of which are triangular prism-shaped, so that a sealing structure similar to a labyrinth waterproof structure is provided between the two to prevent paint leakage, and after the extrusion plate 11 rebounds until the extrusion plate 11 is lifted up by the supporting plate 17 again, the extrusion plate 11 will be at the outermost end of the plate groove 12 under the restriction of the limit ring 16, and the relative discharge port 4 will be always sealed by the movable plate 8;

[0042] During the time when the movable plate 8 moves inward and is inside the material chamber 3, there is a gap between the discharge port 4 and the movable plate 8, so that the coating in the material chamber 3 will flow out along the gap between the two and be injected into the gap between the rotating roller 1 and the bottom plate 6. Because the time for the movable plate 8 to move inward is extremely limited, and the gap between the movable plate 8 and the discharge port 4 for the water-based ink coating to flow out is also small, the coating that flows out from the two in each round is also relatively limited. In order to allow the limited water-based ink coating to adhere to the outer wall of the rotating roller 1 and achieve a sufficient coating effect, the present invention is used to prevent the coating from being lost. The gap between the rotating roller 1 and the bottom plate 6 is also set to be small, and the outer wall of the rotating roller 1 is in sliding contact with the front and rear ends of the bottom plate 6. Therefore, a small amount of water-based ink coating can adhere to the circumferential outer wall of the rotating roller 1 during the rotation of the rotating roller 1 after fully covering the space between the bottom plate 6 and the rotating roller 1, and then rotate with it and finally be coated on the surface of the material to be coated. The movable plate 8 is restricted by the limit ring 16 to keep the outer wall flush with the outer wall of the rotating roller 1, so the movable plate 8 can also play the effect of coating the surface of the material to be coated during the rotation of the rotating roller 1.

[0043] As the extrusion plate 11 moves back and forth, the feeding mechanism 7 will also inject paint into the material chamber 3. When the extrusion plate 11 moves inward, the piston plate 26 will be pushed toward the inner side of the side groove 25 through the sliding rod 27. The pushing will compress the space inside the circular cavity 23, and the air inside it can only surge from the baffle 24 to the space with a smaller diameter of the circular cavity 23, and then the second partition plate 29 will be pushed open by air pressure, and then the paint between the reduced diameter position of the circular cavity 23 and the baffle 24 will flow from the connecting groove 28 into the material chamber 3. By setting the size of the side groove 25, the device can control the amount of paint flowing into the material chamber 3 each time to be consistent with the amount of paint flowing out of the discharge port 4 in each round, so as to ensure that there is always enough paint inside the material chamber 3 to be output outward. Then, during the resetting process of the extrusion plate 11, the piston plate 26 will move along the side groove 25 again. The groove 25 moves outwards, and in this process the space inside the circular cavity 23 will be enlarged, so it is necessary to add air from the outside, but the second partition 29 can only move outwards, so the second partition 29 will not move. On the other hand, the first partition 20 in the feed pipe 19 will move into the circular cavity 23, thereby opening the opening end of the feed pipe 19 located in the circular cavity 23, and then the external air pressure will push the paint from the container into the gap surrounded by the baffle 24 and the inner wall of the circular cavity 23 to wait and then be pressed into the material cavity 3. The paint temporarily stored in the material cavity 3 will be constantly moved under the action of multiple guide plates 34. The guide plate 34 itself is stationary, but the rotating roller 1 is rotating, so it can play the purpose of moving the paint. This design is to increase the fluidity of the paint and avoid agglomeration or stratification of the water-based ink paint.

[0044] It should be noted that the discharge port 4 in the present device is arranged in a symmetrical structure, and positions without the discharge port 4 are arranged on the front and rear sides of the rotating roller 1. Before the present device is put into use, the staff can rotate the closed position with the threaded hole 40 to the upper side, and the corresponding closed position on the other side will correspond to the lower support plate 17 and the curved plate 18. In this way, the movable plate 8 will not be affected by the support plate 17 and the curved plate 18 and move inward. The staff can unscrew the threaded cover 41 and pre-inject a part of the coating into the material chamber 3, so that the amount of coating inside the material chamber 3 will not be insufficient to support the outflowing amount of coating due to adhesion to the inner wall of the material chamber 3 during rotation, thereby ensuring the smooth development of the coating work. The threaded hole 41 is arranged at the edge of the rotating roller 1, and it will not come into contact with the material to be coated during use. The threaded cover 41 itself is also arranged as a T-shaped structure, which is convenient for the staff to hold its thinner part and unscrew it out of the threaded hole 40.

[0045] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An environmentally friendly plate roller capable of controlling the amount of coating, comprising a rotating roller (1), characterized in that: Both ends of the rotating roller (1) are coaxially fixedly connected with a connecting shaft (2); the interior of the rotating roller (1) is hollow to form a material cavity (3); the inner wall of the material cavity (3) is symmetrically structured and evenly provided with a plurality of discharge ports (4); A sealing mechanism (5) is provided inside the discharge port (4), and the sealing mechanism (5) seals the discharge port (4); A bottom plate (6) is rotatably connected below the rotating roller (1); the bottom plate (6) is an arc-shaped structure with the concave surface facing upwards and both ends thereof are in sliding contact with the outer wall of the rotating roller (1); the middle of the concave surface of the bottom plate (6) is in clearance fit with the outer wall of the rotating roller (1); A feeding mechanism (7) is provided at one end of one of the connecting shafts (2) away from the rotating roller (1), and the feeding mechanism (7) injects paint into the material cavity (3). A threaded hole (40) is provided through one side of the front wall of the rotating roller (1), and a threaded cover (41) is threadedly connected to the inner thread of the threaded hole (40).

2. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 1, characterized in that: The closing mechanism (5) comprises a movable plate (8), the movable plate (8) and the discharge port (4) are both T-shaped structures with a larger inner side and a smaller outer side and are plug-matched, the outer wall of the movable plate (8) is an arc surface structure and is flush with the outer wall of the rotating roller (1), the inner wall of the discharge port (4) is symmetrically provided with two slots (9), and both ends of the movable plate (8) are provided with plug blocks (10) that are plug-matched with the slots (9).

3. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 2, characterized in that: Two extrusion plates (11) are symmetrically fixed at both ends of the movable plate (8); a plate groove (12) is provided on the inner wall of the material cavity (3) for slidingly cooperating with the extrusion plate (11); both the extrusion plate (11) and the plate groove (12) are L-shaped structures; the end of the extrusion plate (11) away from the material cavity (3) passes through the plate groove (12) and extends to the outer side of the rotating roller (1); the end of the extrusion plate (11) away from the material cavity (3) is an arc-shaped structure; a plurality of support springs (13) are fixed between the inner wall of the extrusion plate (11) and the inner wall of the plate groove (12).

4. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 3, characterized in that: Two fixed plates (14) are symmetrically fixed at both ends of the top surface of the bottom plate (6), and the two fixed plates (14) are both circular structures and are respectively coaxially rotatably connected to the two connecting shafts (2). Two adapter rings (15) are symmetrically fixed at the top surface of the bottom plate (6), and the two adapter rings (15) are coaxially sleeved on the outside of the rotating roller (1) and are rotatably connected to the rotating roller (1). The diameters of the two ends of the rotating roller (1) are smaller than the diameter of the middle.

5. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 4, characterized in that: A limiting ring (16) is coaxially fixedly arranged on the upper inner wall of the fixing plate (14), and the outer wall of the limiting ring (16) is in sliding contact with the inner wall of the extrusion plate (11). A supporting plate (17) is fixedly arranged on the front side of the lower part of the fixing plate (14), and the top surface of the supporting plate (17) is a curved surface structure and is in extrusion contact with the outer wall of the extrusion plate (11). An arc-shaped plate (18) is fixedly arranged at the rear end of the supporting plate (17), and the supporting plate (17) causes the extrusion plate (11) to slide inwardly along the plate groove (12), and the arc-shaped plate (18) is in sliding contact with the outer wall of the extrusion plate (11).

6. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 5, characterized in that: The feeding mechanism (7) comprises a feeding pipe (19), the opening end of the feeding pipe (19) close to the material chamber (3) is a truncated cone structure, the opening end of the feeding pipe (19) close to the material chamber (3) is slidably provided with a first partition (20), a plurality of first return springs (21) are evenly fixed between the wall of the first partition (20) away from the material chamber (3) and the inner wall of the feeding pipe (19), the feeding pipe (19) is coaxially rotatably connected with the connecting shaft (2) on the same side thereof, the end of the feeding pipe (19) away from the rotating roller (1) is connected with a metal hose (22), a circular cavity (23) is provided in the rotating roller (1) at a position relative to the feeding pipe (19), the circular cavity (23) is a smaller T-shaped cylindrical structure close to the end of the material chamber (3), the end of the feeding pipe (19) passes through the side wall of the rotating roller (1) and extends to the inside of the circular cavity (23) and is coaxially rotatably connected with the rotating roller (1).

7. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 6, characterized in that: A baffle (24) is sleeved on the end of the feed pipe (19) at a position where the diameter of the circular cavity (23) is reduced. The baffle (24) is a three-quarter cylindrical structure. The arc outer wall of the baffle (24) is in sliding contact with the inner wall of the circular cavity (23). The inner wall of the circular cavity (23) away from the feed cavity (3) is symmetrically provided with a plurality of side grooves (25). The positions of the plurality of side grooves (25) correspond one to one with the positions of the plurality of plate grooves (12) on one side close to the feed pipe (19). A piston plate (26) is provided at the outer end of the side groove (25) to be slidably matched therewith. Two sliding rods (27) are fixedly provided between the piston plate (26) and the corresponding extrusion plate (11). The outer end of the sliding rod (27) passes through the inner wall of the side groove (25) and extends to the inside of the plate groove (12) and is slidably connected to the rotating roller (1).

8. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 7, characterized in that: A plurality of connecting grooves (28) are arranged in an annular manner between the circular cavity (23) and the material cavity (3); a second partition (29) is slidably arranged on the inner wall of the material cavity (3) relative to the position of the plurality of connecting grooves (28); the second partition (29) is an annular structure; a plurality of limit plates (30) are fixedly arranged around the inner wall of the material cavity (3) relative to the second partition (29) and are slidably matched with the second partition; a plurality of circular grooves (31) are evenly arranged on one side of the second partition (29) close to the connecting grooves (28); a second return spring (32) is fixedly arranged between the inner wall of the circular groove (31) and the inner wall of the material cavity (3).

9. The environmentally friendly plate roller capable of controlling the amount of coating according to claim 8, characterized in that: A fixed shaft (33) is coaxially fixedly arranged on one side of the baffle (24) close to the material chamber (3); the connection between the fixed shaft (33) and the baffle (24) is an L-shaped structure and is staggered with the opening end of the feed pipe (19); the end of the fixed shaft (33) away from the baffle (24) coaxially penetrates the inner wall of the circular chamber (23) and extends into the material chamber (3) and is rotatably connected to the rotating roller (1); a plurality of guide plates (34) are evenly fixedly arranged on the outer wall of the fixed shaft (33) relative to the position inside the material chamber (3) in a spiral shape, wherein the fixed shaft (33) is provided with a plurality of guide plates (34) which are arranged on the outer wall of the fixed shaft (33) and are arranged on the outer wall of the fixed shaft (33) and are arranged on the outer wall of the fixed shaft (3). One end of the connecting shaft (2) away from the rotating roller (1) is coaxially fixedly connected with a flange (35); the outer end of the outer wall of the connecting shaft (2) is sleeved with a bearing seat (36); the outer wall of the fixing plate (14) is fixedly provided with a fixing ring (37); the upper and lower ends of the fixing ring (37) are fixedly provided with connecting plates (38); the outer wall of the fixing ring (37) close to the feeding pipe (19) is fixedly provided with a support frame (39); the middle part of the support frame (39) is sleeved on the end of the feeding pipe (19).

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