Painting device for continuous production of molded and chamfered PVC (polyvinyl chloride) composite floor
The design of the paint roller device enables uniform paint coating of PVC composite flooring, solving the problems of uneven coating and paint waste, improving coating quality and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-03-10
AI Technical Summary
Existing painting equipment often results in uneven paint application when coating PVC composite flooring, affecting the surface quality and aesthetics of the flooring. At the same time, it also leads to high paint waste and high costs.
The paint coating roller device includes a central shaft, roller, paint coating brush and arc cylinder. It automatically pumps paint and uses secretion holes and liquid holes to achieve uniform paint secretion. The design of magnetic arc cylinder and conical cylinder ensures the stability of paint supply and uniform coating.
It achieves uniform coating of PVC composite flooring, avoids missed areas and excessive coating thickness, reduces paint waste and manufacturing costs, and improves coating quality and equipment maintenance convenience.
Smart Images
Figure CN121624022A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of floor painting, and particularly relates to a painting device for continuous production of die-molding chamfered PVC composite floor. BACKGROUND
[0002] Lightweight composite insulation boards need to have mildew resistance in most applications, especially in humid environments or poorly ventilated areas. Mildew resistance is a key factor in ensuring material durability, building health, and energy-saving effects. The necessity of mildew resistance mainly stems from the negative impact of humid environments on materials. In high humidity areas (such as southern humid climates), water vapor penetration can cause condensation inside the board, mold growth, and a decrease in physical properties, not only affecting the insulation efficiency, but also possibly causing indoor air quality problems. For example, if the exterior wall insulation system lacks moisture-proof design, the board may deform or the decorative layer may fall off. Even in relatively dry environments, if the building has local humidity (such as bathrooms, basements), mildew resistance can extend the service life and reduce maintenance costs. Die-molding chamfered PVC composite floor is a PVC composite floor that is once hot-pressed into a four-edge chamfered shape under standard temperature and precise time using numerical control die-molding technology. After die-molding, the chamfer and the flat surface need to be painted to prevent the floor from mildewing and to play a moisture-proof role. However, the current painting devices on the market generally use spray heads or rolling brushes, which can easily cause uneven painting or too much paint, affecting the surface quality and aesthetics of the floor. At the same time, the loss of paint is also large, greatly increasing the cost. Therefore, ensuring uniformity and stability of paint supply has become a problem that needs to be solved in the field. SUMMARY
[0003] The purpose of the present application is to provide a painting device for continuous production of die-molding chamfered PVC composite floor to solve the problems raised in the background.
[0004] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of lacquering device for continuous production of moulding chamfer PVC composite floor, including the conveying belt for conveying moulding chamfer PVC composite floor and lacquering roller, the lacquering roller is installed on lacquering device, and including center shaft and drum, and the PVC composite floor is light composite thermal insulation board;The inner wall of the left and right sides of the drum is integrally formed with support plate, and the support plate is hollow between the support plate, the outer side of the drum is sleeved with lacquering roller brush, the inside of the center shaft is hollow, and the left end is connected with the pipeline of external pump body, and paint is transported to the inside of center shaft by external pump body, the outer side of the center shaft is sleeved with oppositely arranged arc cylinder, the center of the center shaft and the center of the arc cylinder are provided with liquid hole, and the outer ring of the drum is uniformly provided with a plurality of secretion holes;The left and right ends of the lacquering roller and the drum are chamfered, and are matched with the chamfered part of moulding chamfer PVC composite floor, the outer surface of the lacquering roller brush is matched with the chamfered part and the upper surface of the moulding chamfer PVC composite floor, the drum, the support plate and the lacquering roller brush are all elastic, and the center shaft is fixed on the lacquering device.
[0005] The present application further discloses that the center shaft is integrally formed with a conical cylinder on the outside of the middle, the front and rear sides of the conical cylinder are arc-shaped, and the arc-shaped parts are matched with the inner wall of the arc cylinder, the upper and lower sides of the conical cylinder are also arc-shaped, but the diameters of the upper and lower sides are smaller than those of the front and rear sides.
[0006] The present application further discloses that the inner sides of the support plates are integrally formed with sliding grooves on the upper and lower sides, and the two arc cylinders are slidingly connected in the sliding grooves.
[0007] The present application further discloses that the middle of the support plate is provided with a through hole, the center shaft is slidingly connected in the through hole, and a sealing ring is arranged at the sliding connection position.
[0008] The present application further discloses that the left and right ends of the center shaft are thread-shaped, and are threadedly connected with nuts, and a threaded sleeve is threadedly connected with the right end of the center shaft;A limiting block is integrally formed on the outer ring of the right side of the center shaft, and the left side of the limiting block is matched with the right side of the right support plate, the nut on the right end is used to fix the threaded connection position of the threaded sleeve and the center shaft, and the nut on the left end is used to limit the support plate.
[0009] The present application further discloses that the two arc cylinders are magnetic, and the magnetic poles are opposite.
[0010] The present application further discloses that the two nuts are loosened, and the drum is slid left and right.
[0011] The present invention further illustrates that after the leftmost end of the conical cylinder contacts the protrusion, the arc-shaped cylinder fits tightly against the outer side of the inner wall of the groove.
[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention automatically pumps paint, ensuring an uninterrupted supply of paint and enabling continuous painting. Simultaneously, paint is continuously secreted into the painting roller through the secretion orifice, achieving uniform and uninterrupted application and improving painting quality. Furthermore, the chamfered portion of the painting roller provides comprehensive painting of the molded and chamfered PVC composite flooring, significantly improving painting quality, resulting in more uniform painting, preventing missed areas, and effectively preventing excessively thick or thin coats. The overall structure is simple, with low manufacturing costs. Several painting rollers can be installed on the painting device to maximize painting quality, and maintenance is relatively convenient and quick. Cleaning the inside of the painting roller is also relatively convenient and efficient when changing paint. During the brushing process, the roller-shaped application method can scrape away excess paint, ensuring surface quality and preventing excessively thick coats. During the roller brushing process, the pressure applied to the paint accelerates the paint secretion rate, maintains a stable paint supply, and prevents missed areas, thus improving the painting quality. Furthermore, the fluidity of the paint, due to the pressure applied by the arc-shaped cylinder, causes some of it to flow back into the liquid holes. This not only accelerates the paint secretion rate but also prevents excessive paint discharge and waste, and avoids applying too thick a layer, further enhancing the stability of paint secretion. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a plan view showing the positional relationship between the floor and the paint roller according to the present invention; Figure 2 This is a schematic diagram of the coating roller structure of the present invention; Figure 3 This is an exploded view of the coating roller of the present invention; Figure 4 This is a cross-sectional view of the coating roller of the present invention; Figure 5 This is a plan view of the internal structure of the coating roller of the present invention; Figure 6 This is a schematic diagram showing the positional relationship between the circular arc cylinder of the present invention and the central axis after rotation; In the diagram: 1. Central shaft; 11. Conical cylinder; 2. Roller; 21. Support plate; 211. Slide groove; 22. Circular arc cylinder; 221. Protrusion; 23. Sealing ring; 3. Paint roller; 4. Nut; 5. Threaded sleeve. Detailed Implementation
[0014] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0015] Please see Figures 1-6 The present invention provides a technical solution: a painting device for continuous production of molded chamfered PVC composite flooring, comprising a conveyor belt for transporting the molded chamfered PVC composite flooring and a painting roller, the painting roller being mounted on the painting device and comprising a central shaft 1 and a roller 2, the PVC composite flooring being a lightweight composite insulation board; The inner walls of both sides of the roller 2 are integrally formed with support plates 21, and the support plates 21 form a hollow shape. A paint roller brush 3 is sleeved on the outer side of the roller 2. The interior of the central shaft 1 is hollow, and its left end is connected to the external pump body pipe. Paint is delivered to the central shaft 1 through the external pump body. A circular arc cylinder 22 is sleeved on the outer side of the central shaft 1. Liquid holes are provided in the middle of the central shaft 1 and the middle of the circular arc cylinder 22. Several secretion holes are evenly provided on the outer ring of the roller 2. The left and right ends of the painting roller 3 and the roller 2 are both chamfered and fit with the chamfered part of the molded chamfered lightweight composite insulation board. The outer surface of the painting roller 3 is in contact with the chamfered part and the upper surface of the molded chamfered lightweight composite insulation board. The roller 2, the support plate 21 and the painting roller 3 are all elastic. The central shaft 1 is fixed on the painting device. An external pump delivers paint to the central shaft 1 through a pipe, then discharges it through the liquid holes of the central shaft 1 between the outer wall of the central shaft 1 and the inner wall of the arc cylinder 22. From there, the paint is discharged through the liquid holes on the arc cylinder 22 to the support plates 21, and finally enters the painting roller 3 through the secretion holes. Afterwards, a conveyor belt transports the molded and beveled lightweight composite insulation board to the area below the painting roller. The painting roller 3 then applies paint to the surface of the molded and beveled lightweight composite insulation board and the beveled surfaces, making the floor more aesthetically pleasing and providing moisture and mildew resistance. The process involves an automatic pump to deliver paint, ensuring an uninterrupted supply for continuous painting. Simultaneously, paint is continuously secreted into the painting roller 3 through secretion holes, achieving uniform and uninterrupted application and improving painting quality. Furthermore, the chamfered portion of the painting roller 3 is used to comprehensively paint the molded and chamfered lightweight composite insulation board, significantly improving painting quality, resulting in more even coating, preventing missed areas, and effectively preventing excessively thick or thin coats, further enhancing the overall painting quality. The overall structure is simple and the manufacturing cost is low. Several of these painting rollers can be set on the painting device to ensure the painting quality to the greatest extent. Maintenance is also relatively convenient and quick. Cleaning the inside of the painting roller when changing paint is also relatively convenient and efficient. At the same time, during the brushing process, the roller-shaped application method can scrape off excess paint, ensuring the surface quality of the paint and avoiding the phenomenon of applying too thick a layer.
[0016] A conical cylinder 11 is integrally formed on the middle outer side of the central shaft 1. The front and rear sides of the conical cylinder 11 are arc-shaped, and the arc-shaped part fits the inner wall of the arc cylinder 22. The upper and lower sides of the conical cylinder 11 are also arc-shaped, the difference being that the diameter of the arc-shaped part on the upper and lower sides is smaller than the diameter of the arc-shaped part on the front and rear sides. The inner wall of the arc cylinder 22 is integrally formed with protrusions 221. After the arc cylinder 22 rotates, the arc-shaped parts on the front and rear sides of the conical cylinder 11 come into contact with the protrusions 221.
[0017] The inner side of the support plate 21 is integrally formed with grooves 211 on both the top and bottom, and the two arc cylinders 22 are slidably connected in the grooves 211 respectively. During the roller brushing process, the painting roller brush 3 rubs against the surface of the molded and chamfered lightweight composite insulation board, thereby driving the painting roller brush 3 to rotate. The painting roller brush 3 drives the roller 2 to rotate, and the roller 2 drives the support plate 21 to rotate. The support plate 21 limits the arc cylinder 22 through the slide groove 211, so that the arc cylinder 22 rotates with it. At this time, the central axis 1 is stationary, and the roller 2 rotates outside the central axis 1 through the support plate 21. When the protrusion 221 of the arc cylinder 22 rotates to contact the large-diameter arc part of the conical cylinder 11, the large-diameter arc part squeezes the protrusion 221, causing it to... The outer expansion and movement of the arc-shaped cylinder 22, by squeezing the paint, accelerates the paint secretion rate, maintains a stable paint supply, and prevents missed areas, thus further improving the painting quality. Furthermore, as the arc-shaped cylinder 22 squeezes the paint, some of the paint's fluidity causes it to flow back into the liquid holes, accelerating the paint secretion rate while preventing excessive paint secretion and waste. It also prevents overly thick coatings, further enhancing the stability of paint secretion.
[0018] The support plate 21 has a through hole in the middle, and the central shaft 1 is slidably connected in the through hole, and a sealing ring 23 is provided at the sliding connection. When the arc cylinder 22 expands, it compresses the paint. At this time, the sealing ring 23 plays a sealing role to prevent the paint from leaking out. While ensuring pressure, it reduces paint loss and lowers painting costs. Moreover, the central shaft 1 remains stationary, and the sealing ring 23 is rotated by the support plate 21. The smoothness of rotation is ensured, and jamming is avoided.
[0019] Both ends of the central shaft 1 are threaded and are threaded with nuts 4. The right end of the central shaft 1 is threaded with a threaded sleeve 5. The outer ring on the right side of the central shaft 1 is integrally formed with a limiting block, and the left side of the limiting block is in contact with the right side of the right support plate 21. The right end nut 4 is used to fix the threaded connection between the threaded sleeve 5 and the central shaft 1, and the left end nut 4 is used to limit the support plate 21. The operator loosens the two nuts 4, then rotates the central shaft 1, causing its right-end threaded portion to move while rotating through the threaded hole of the threaded sleeve 5, thereby adjusting the position of the central shaft 1. The central shaft 1 drives the position of the conical cylinder 11 to change. After the adjustment is completed, the nuts 4 are tightened again. The left-side nut 4 pushes the support plate 21, making it fit tightly against the limit block, thus limiting the roller 2 and preventing it from wobbling left and right when rotating, which would affect the painting quality. At the same time, the right-side nut 4 fixes the central shaft 1 to prevent its position from shifting. By adjusting the position of the central axis 1, the position of the conical cylinder 11 is adjusted, thereby changing the contact position between the outer surface of the conical cylinder 11 and the protrusion 221. Since the conical cylinder 11 is conical in shape, by adjusting the position of the conical cylinder 11, the extent of outward expansion of the protrusion 221 after being squeezed by the conical cylinder 11 is changed, so as to control the squeezing force of the arc cylinder 22 on the paint, and to accurately control the amount of paint secretion, avoiding the phenomenon of intermittent painting caused by excessive or insufficient paint secretion at one time, further improving the quality of painting, and ensuring the smoothness, perfection and stability of the painting.
[0020] Both circular cylinders 22 are magnetic, but their magnetic poles are opposite. When the arc cylinder 22 is squeezed and expands outward, a magnetic attraction is generated between the two arc cylinders 22. When the large-diameter arc part of the conical cylinder 11 is separated from the protrusion 221, the magnetic attraction causes the two arc cylinders 22 to slowly reset, so as to ensure that paint can be continuously and intermittently secreted. When the large-diameter arc portion of the conical cylinder 11 contacts the protrusion 221, the two arc cylinders 22 separate. At this time, a large amount of paint between the support plates 21 can flow into the arc cylinder 22 through the gap between the two arc cylinders 22, thereby greatly reducing the secretion speed and completely eliminating the phenomenon of large-scale paint discharge. The amount of paint discharged at intervals is less, which can ensure uninterrupted application and fully control the consumption of paint, further reducing cost losses. Meanwhile, after the paint enters between the arc cylinder 22 and the central shaft 1, the paint is stirred by the large diameter part of the conical cylinder 11 to ensure that it is fully mixed and to prevent the paint from clumping, thereby improving the quality of the paint. Furthermore, the filling of the paint ensures the stability of the arc cylinder 22's reset and provides higher precision in controlling the amount of paint discharged.
[0021] After both nuts 4 are loosened, roller 2 slides left and right.
[0022] After the leftmost end of the conical cylinder 11 contacts the protrusion 221, the arc cylinder 22 fits tightly against the outer side of the inner wall of the slide groove 211. Since the roller 2, support plate 21 and painting roller 3 are all elastic, it is more convenient and quick to put the painting roller 3 on the roller 2 when replacing or installing it. The installation and replacement are efficient and convenient, and it has good adaptability to lightweight composite insulation boards with different height differences. After the painting roller 3 is installed and replaced many times, the fatigue of the roller 2 and support plate 21 increases and the reset ability decreases. At this time, the operator can loosen the two nuts 4 and move the roller 2 left and right, so that the protrusion 221 continuously contacts and then separates from the large diameter arc part of the conical cylinder 11. The arc cylinder 22 and the slide groove 211 continuously squeeze each other, causing the roller 2 and support plate 21 to expand and deform outward to achieve manual reset, thereby greatly improving the service life of the painting roller. At the same time, the above operation can also be used when cleaning the paint roller. The cleaning agent is injected into the paint roller and the cleaning agent is squeezed back and forth to achieve the purpose of rapid cleaning.
[0023] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. 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 of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A painting device for continuous production of a PVC composite floor with a molded chamfer, comprising a conveying belt for conveying the PVC composite floor with a molded chamfer and a painting roller, characterized in that: The paint roller is installed on a paint device, and comprises a central shaft (1) and a roller (2), and the PVC composite floor is a light composite thermal insulation board; The left and right side inner walls of the roller (2) are integrally formed with support plates (21), and the support plates (21) are hollow between them, the outer side of the roller (2) is sleeved with a paint roller brush (3), the inside of the central shaft (1) is hollow, the left end is connected with the outer pump body pipeline, and paint is delivered to the inside of the central shaft (1) by the outer pump body, the outer side of the central shaft (1) is sleeved with oppositely arranged arc cylinders (22), the middle of the central shaft (1) and the middle of the arc cylinder (22) are provided with liquid holes, and the outer circle of the roller (2) is uniformly provided with a plurality of secretion holes. The left and right ends of the paint roller brush (3) and the roller (2) are chamfered, and are fitted with the chamfered part of the molded chamfered PVC composite floor, the outer surface of the paint roller brush (3) is attached to the chamfered part and the upper surface of the molded chamfered PVC composite floor, the roller (2), the support plate (21) and the paint roller brush (3) are elastic, and the central shaft (1) is fixed on the paint device.
2. The painting device for continuous production of die-cut chamfered PVC composite floor according to claim 1, characterized in that: The middle outer side of the central shaft (1) is integrally formed with a conical cylinder (11), the front and rear sides of the conical cylinder (11) are arc-shaped, and the arc-shaped parts are fitted with the inner walls of the arc cylinders (22), the upper and lower sides of the conical cylinder (11) are also arc-shaped, and the difference is that the diameters of the upper and lower sides are smaller than those of the front and rear sides. The inner walls of the arc cylinders (22) are integrally formed with protrusions (221), and after the arc cylinders (22) are rotated, the arc-shaped parts on the front and rear sides of the conical cylinder (11) are in contact with the protrusions (221).
3. The painting device for continuous production of PVC composite floor with die-cut chamfer according to claim 2, characterized in that: The inner sides of the support plates (21) are integrally formed with sliding grooves (211) upward and downward, and the two arc cylinders (22) are respectively slidingly connected in the sliding grooves (211).
4. The painting device for continuous production of die-cut chamfered PVC composite floor according to claim 3, characterized in that: The middle of the support plate (21) is provided with a through hole, and the central shaft (1) is slidingly connected in the through hole, and a sealing ring (23) is arranged at the sliding connection position.
5. The painting device for continuous production of PVC composite floor with die-cut chamfer according to claim 4, characterized in that: The left and right ends of the central shaft (1) are threaded, and nuts (4) are threadedly connected thereto, and the right end of the central shaft (1) is threadedly connected with a threaded sleeve (5). The right outer side of the central shaft (1) is integrally formed with a limiting block, the left side of the limiting block is attached to the right side of the right support plate (21), the right end nut (4) is used for fixing the threaded connection position of the threaded sleeve (5) and the central shaft (1), and the left end nut (4) is used for limiting the support plate (21).
6. The painting device for continuous production of PVC composite floor with die-cut chamfer according to claim 5, characterized in that: The two arc cylinders (22) have magnetism, and the magnetic poles are opposite.
7. The painting device for continuous production of PVC composite floor with die-cut chamfer according to claim 6, characterized in that: After the two nuts (4) are loosened, the roller (2) slides left and right.
8. The painting device for continuous production of PVC composite floor with die-pressed chamfer according to claim 7, characterized in that: When the leftmost end of the conical cylinder (11) is in contact with the protrusion (221), the arc cylinder (22) is tightly attached to the inner wall of the sliding groove (211).