Printing equipment based on PVC wall cloth production and processing

Abstract

The invention relates to the technical field of PVC wall cloth processing, in particular to printing equipment based on PVC wall cloth production and processing, which comprises a base, a storage groove is formed in the top of the base, supporting frames are symmetrically fixed to the top of the base, a gravure cylinder is arranged between the two supporting frames, and a motor for driving the gravure cylinder to rotate is fixed to the top of the base. A storage groove is formed in the top of the base, a stirring assembly is arranged in the storage groove, the stirring assembly is used for stirring ink in the storage groove, a supporting base is fixed to the top of the base, and an ink scraping blade is arranged in the supporting base. The rotating shaft of the gravure cylinder drives the stirring rod to rotate through the first transmission belt, and the stirring rod drives the stirring blades to rotate to stir the ink in the storage tank, so that the fluidity of the ink is improved, and the agglomeration of the ink in the storage tank is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of PVC wall cloth processing, and in particular to a printing device based on the production and processing of PVC wall cloth. Background Art

[0002] The PVC wall cloth printing process is a process of transferring the design pattern to the surface of the wall cloth through various printing techniques. The ink in the ink fountain is attached to the roller, and the ink is transferred to the wall cloth through the contact between the roller and the wall cloth, forming an exquisite printing effect.

[0003] A digital printing machine for wide-width polyester wall cloth is disclosed in the patent with publication number CN104228341 B. The above technical purpose of the present invention is achieved through the following technical scheme: a digital printing machine for wide-width polyester wall cloth, comprising a frame, a printing device arranged on the frame, a transmission device and a heating device arranged on the frame.

[0004] Since the ink has a tendency to clump, it is easy to form clumps when the ink is left standing in the ink fountain. The agglomerated ink has poor fluidity and its transferability is also reduced. During the printing process, these agglomerated inks cannot be effectively transferred to the printing material, thus causing uneven printing patterns. Secondly, when the scraper scrapes the ink on the outer wall of the drum, the ink easily adheres to the blade to form clumps. These ink clumps accelerate the wear of the scraper and are also easy to fall back into the ink fountain, increasing the amount of agglomerated ink inside the ink fountain, which in turn leads to uneven printing patterns. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art that the ink has a tendency to clump, and the ink is easy to clump when it is left standing in the ink fountain. The agglomerated ink has poor fluidity and its transferability is also reduced. During the printing process, these agglomerated inks cannot be effectively transferred to the printing material, thus causing uneven printed patterns. Secondly, when the ink scraper scrapes the ink on the outer wall of the drum, the ink is easy to adhere to the blade to form agglomerates. These ink agglomerates accelerate the wear of the ink scraper and are easy to fall back into the ink fountain, causing an increase in the amount of agglomerated ink inside the ink fountain, which in turn leads to uneven printed patterns. A printing device based on the production and processing of PVC wall cloth is proposed.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a printing device based on the production and processing of PVC wall cloth, comprising a base, a storage tank is provided on the top of the base, a support frame is symmetrically fixed on the top of the base, a gravure roller is arranged between the two support frames, a motor for driving the gravure roller to rotate is fixed on the top of the base, a stirring assembly is provided inside the storage tank, the stirring assembly is used to stir the ink inside the storage tank, a support seat is fixed on the top of the base, an ink scraper is provided inside the support seat, a scraping mechanism is provided inside the support seat, the scraping mechanism is used to scrape off the ink attached to the ink scraper, a collecting tank is provided inside the base, a discharge port is provided at the inner bottom of the support seat, and the bottom of the discharge port is connected to the feed port of the collecting tank.

[0007] In a further embodiment, a cylinder is fixed on the top of the two support frames, a slide groove is opened on the side wall of the support frame, the telescopic end of the cylinder passes through the top of the support frame and is fixed with a slider, the slider is slidably connected inside the slide groove, and a pressure roller is rotatably connected between the two sliders, and the pressure roller is located directly above the gravure cylinder.

[0008] In a further embodiment, the stirring assembly includes a first mounting groove, the first mounting groove is opened at the top of the base, and a second mounting groove is opened at the bottom of the support frame. The first mounting groove is connected to the second mounting groove, and a stirring rod is rotatably connected to the inner wall of the storage groove. The end of the stirring rod passes through the inner wall of the storage groove and enters the interior of the first mounting groove. A plurality of stirring blades are fixed in a linear array on the outer wall of the stirring rod. A first transmission belt is arranged inside the first mounting groove, and the rotating shaft of the gravure cylinder is connected to the stirring rod through the first transmission belt.

[0009] In a further embodiment, mounting frames are symmetrically fixed to the top of the support seat, a plurality of rotating rollers are rotatably connected between the two mounting frames, a cavity is opened in the side wall of the top of the support seat, and a heating plate is fixedly installed inside the cavity.

[0010] In a further embodiment, a mounting seat is slidably connected to the inner wall of the support seat, a scraper is fixedly installed inside the mounting seat, the end of the scraper located outside the mounting seat is in contact with the outer wall of the gravure cylinder, and elastic telescopic rods are symmetrically fixedly installed on the inner wall of the support seat, and the telescopic ends of the two elastic telescopic rods are fixedly connected to the side of the mounting seat away from the scraper.

[0011] In a further embodiment, the scraping mechanism includes a sliding block, which is slidably connected to the inside of a support seat, and the end of the sliding block slides against the bottom side wall of the scraper. A U-shaped cavity is opened inside the support seat, and a transmission assembly is arranged inside the U-shaped cavity. The transmission assembly is used to drive the sliding block to move back and forth along the bottom side wall of the scraper.

[0012] In a further embodiment, the transmission assembly includes a groove, which is opened through the side wall of the sliding block, and straight racks are fixed on the top side wall and the bottom side wall of the groove. The inner wall of the support seat is rotatably connected to a first rotating rod, and both ends of the first rotating rod respectively penetrate the inner wall of the support seat and enter the interior of the U-shaped cavity. The first rotating rod penetrates the groove, and an arc-shaped rack is fixed on the outer wall of the first rotating rod located inside the groove, and the arc-shaped rack matches the straight rack.

[0013] In a further embodiment, a second transmission belt is symmetrically arranged inside the U-shaped cavity, and the two second transmission belts are respectively located at two ends of the first rotating rod, and the first rotating rod is connected to the rotating roller through the second transmission belt transmission, and U-shaped frames are fixed at both ends of the first rotating rod, and round rods are fixed on the side walls of the U-shaped frames, and counterweights are slidably connected to the outer walls of the round rods.

[0014] In a further embodiment, a mounting block is symmetrically fixed on one side of the support seat close to the gravure cylinder, a second rotating rod is rotatably connected between the two mounting blocks, a cylinder is fixedly sleeved on the outer wall of the second rotating rod, an inclined plate is fixed on the inner bottom of the support seat, the inclined plate is slidably connected to the outer wall of the cylinder, one end of the second rotating rod close to the motor passes through the corresponding mounting block and is connected to a third transmission belt, and the second rotating rod is connected to the rotating roller through the third transmission belt.

[0015] In a further embodiment, an air pump is fixed on the side wall of the support seat, and an air inlet end of the air pump is fixedly connected to an air inlet pipe, which is connected to the outside atmosphere; an air outlet end of the air pump is fixedly connected to an air outlet pipe, and the air outlet end of the air outlet pipe passes through the side wall of the support seat and enters the interior of the U-shaped cavity; an air bag is arranged inside the support seat, and the air bag is connected to the interior of the U-shaped cavity; an air outlet is fixed on one side of the air bag, and the air outlet is connected to the outside atmosphere; a pressure relief valve is arranged inside the air outlet, and a plurality of vibration plates are fixed to the inner bottom of the U-shaped cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention arranges a stirring assembly, and a motor drives the gravure cylinder to rotate. In the process of bringing out the ink inside the storage tank, the rotating shaft of the gravure cylinder drives the stirring rod to rotate through the first transmission belt, and the stirring rod drives the stirring blades to rotate to stir the ink inside the storage tank, which is beneficial to increase the fluidity of the ink, thereby reducing the agglomeration of the ink inside the storage tank.

[0018] 2. The present invention sets a scraping mechanism. In the process of the movement of the PVC wall cloth driving the rotating roller to rotate, the rotating roller drives the sliding block to move back and forth. The upper surface of the inclined end of the sliding block slides in contact with the bottom side wall of the scraper. With the reciprocating movement of the sliding block, the ink remaining on the bottom side wall of the scraper can be scraped off and moved to the inclined surface of the sliding block, thereby realizing the cleaning of the bottom side wall of the scraper and further reducing the wear of the scraper by the ink. Through the counterweight block, during the rotation of the first rotating rod, the counterweight block frequently impacts the side wall of the U-shaped frame, and the generated vibration is transmitted to the sliding block, which can help the ink to slide off the inclined surface of the sliding block.

[0019] 3. The present invention provides an airbag, which can play a role of heat insulation and prevent the heat of the heating plate from being transferred to the ink inside the support seat, which is beneficial to preventing the ink from drying out due to heat. At the same time, the airbag can be squeezed on the top of the mounting seat to reduce the vibration of the mounting seat, thereby reducing the vibration of the ink scraper. It can also increase the static friction of the mounting seat, which is beneficial to preventing the mounting seat from moving due to the reciprocating movement of the sliding block. The elastic telescopic rod can support the mounting seat and further reduce the vibration of the mounting seat through the elastic force, which further promotes the vibration reduction of the ink scraper, which is beneficial to reduce the wear of the ink scraper while the ink scraper is scraping the ink on the surface of the gravure cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall structure of the side surface of the present invention;

[0022] Figure 3 It is a structural cross-sectional view of the base of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the support base of the present invention;

[0024] Figure 5 For the present invention Figure 4 A magnified view of the structure at center A;

[0025] Figure 6 A cross-sectional view of the internal structure of the support base of the present invention;

[0026] Figure 7 For the present invention Figure 6 A magnified view of the structure at B in the middle;

[0027] Figure 8 For the present invention Figure 6 A magnified view of the structure at C in the middle;

[0028] Fig. 9is a cross-sectional view of the support seat of the present invention;

[0029] Fig.10 For the present invention Fig. 9 A magnified view of the structure at D in the middle;

[0030] Fig.11 It is a structural cross-sectional view of the collecting tank of the present invention.

[0031] In the figure: 1. base; 2. storage tank; 3. support frame; 4. gravure roller; 5. motor; 6. cylinder; 7. slider; 8. pressure roller; 9. first transmission belt; 10. stirring rod; 11. stirring blade; 12. support seat; 13. mounting seat; 14. scraper; 15. elastic telescopic rod; 16. rotating roller; 17. cavity; 18. heating plate; 19. air bag; 20. second transmission belt; 21. first rotating rod; 22. sliding block; 23. air outlet; 24. groove; 25. spur rack; 26. U-shaped frame; 27. round rod; 28. counterweight; 29. ​​third transmission belt; 30. second rotating rod; 31. cylinder; 32. inclined plate; 33. air pump; 34. air inlet pipe; 35. air outlet pipe; 36. discharge port; 37. vibrating plate; 38. collecting tank; 39. U-shaped cavity. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figures 1 to 11 The printing equipment shown is based on the production and processing of PVC wall cloth, including a base 1, a storage tank 2 is opened on the top of the base 1, a support frame 3 is symmetrically fixed on the top of the base 1, a gravure roller 4 is arranged between the two support frames 3, a motor 5 is fixed on the top of the base 1, the output shaft of the motor 5 is fixedly connected to the rotating shaft of the gravure roller 4, a stirring component is arranged inside the storage tank 2, and the stirring component is used to stir the ink inside the storage tank 2, a support seat 12 is fixed on the top of the base 1, an ink scraper 14 is arranged inside the support seat 12, and a scraping mechanism is arranged inside the support seat 12, and the scraping mechanism is used to scrape off the ink attached to the ink scraper 14, a collecting tank 38 is opened inside the base 1, and a discharge port 36 is arranged at the inner bottom of the support seat 12, and the bottom of the discharge port 36 is connected to the feed port of the collecting tank 38.

[0034] It should be noted that the scraper 14 is used to scrape off excess ink during the printing process to ensure the clarity of the pattern and the accuracy of the color. During the scraping process, these inks may no longer meet the printing quality requirements due to factors such as friction with the scraper 14, exposure to the air for too long, or uneven mixing of the inks. Therefore, the ink scraped off by the scraper 14 is indeed waste ink and should not be used anymore.

[0035] Specifically, since the ink has a tendency to clump, the ink is easy to clump when it is left standing in the ink fountain. The agglomerated ink has poor fluidity and its transferability is also reduced. During the printing process, these agglomerated inks cannot be effectively transferred to the printing material, thus causing uneven printing patterns. Secondly, when the scraper 14 scrapes the ink on the outer wall of the drum, the ink easily adheres to the blade to form agglomerates. These ink agglomerates accelerate the wear of the scraper 14 and are also easy to fall back into the ink fountain, causing an increase in the amount of agglomerated ink inside the ink fountain, which in turn leads to uneven printing patterns.

[0036] In a specific implementation process, the rotating shaft of the gravure cylinder 4 is rotatably connected to the inside of the support frame 3 , and the output shaft of the motor 5 passes through the outer wall of the support frame 3 and is fixedly connected to the rotating shaft of the gravure cylinder 4 .

[0037] The top of the base 1 is rotatably connected to a plurality of supporting circular rods through a supporting column, which is used to provide tension and support for the PVC wall cloth. One end of the PVC wall cloth is connected to an external unwinding device, and the other end of the PVC wall cloth is connected to an external winding device, and the PVC wall cloth is driven to move through the winding device.

[0038] This embodiment of the present invention can solve the above problems. The specific implementation method is as follows. First, the staff adds a sufficient amount of ink to the inside of the storage tank 2 so that the liquid level of the ink is higher than the bottom of the gravure roller 4, so that the gravure roller 4 is partially immersed in the ink. Then the PVC wall cloth is installed on the printing device through the support rod. The motor 5 drives the gravure roller 4 to rotate. The gravure roller 4 adheres the ink inside the storage tank 2 to the side wall of the gravure roller 4, and then transfers the ink to the PVC wall cloth.

[0039] The stirring assembly provided can fully stir the ink in the storage tank 2, which is beneficial to increase the fluidity of the ink in the storage tank 2, thereby helping to reduce the agglomeration of the ink in the storage tank 2 due to standing still.

[0040] The scraping mechanism provided can scrape off the ink attached to the scraper 14, which is helpful to reduce the agglomeration of ink on the scraper 14 and the accelerated wear of the scraper 14. It can also help reduce the occurrence of ink agglomerates attached to the scraper 14 dripping into the interior of the storage tank 2. The ink scraped off by the scraper 14 enters the interior of the support seat 12, and then passes through the discharge port 36 from the interior of the support seat 12 into the interior of the collection tank 38, thereby facilitating the centralized collection of the scraped ink.

[0041] In the further implementation process, a cylinder 6 is fixed on the top of the two support frames 3, a slide groove is opened on the side wall of the support frame 3, the telescopic end of the cylinder 6 passes through the top of the support frame 3 and is fixed with a slider 7, the slider 7 is slidably connected inside the slide groove, and a pressure roller 8 is rotatably connected between the two sliders 7, and the pressure roller 8 is located directly above the gravure cylinder 4.

[0042] It should be noted that the surface of the gravure roller 4 has been specially treated and has concave pattern parts, which are used to store ink. When the gravure roller 4 rotates, the ink stored in the pattern parts will not be scraped off. Subsequently, when the roller contacts the wall cloth, the ink is transferred from the concave pattern parts of the gravure roller 4 to the wall cloth.

[0043] Specifically, through the provided cylinders 6, the two cylinders 6 respectively drive the corresponding sliders 7 to move downward, and the two sliders 7 jointly drive the pressure roller 8 to move downward. The pressure roller 8 contacts the upper surface of the PVC wall cloth and squeezes the PVC wall cloth downward on the outer wall of the gravure roller 4. The squeezing force of the pressure roller 8 on the PVC wall cloth is beneficial to the full contact between the PVC wall cloth and the ink on the gravure roller 4, thereby facilitating the ink on the gravure roller 4 to be fully printed on the PVC wall cloth.

[0044] In the further implementation process, the stirring assembly includes a first mounting groove, the first mounting groove is opened at the top of the base 1, and a second mounting groove is opened at the bottom of the support frame 3. The first mounting groove is connected to the second mounting groove. A stirring rod 10 is rotatably connected to the inner wall of the storage tank 2. The end of the stirring rod 10 passes through the inner wall of the storage tank 2 and enters the interior of the first mounting groove. A plurality of stirring blades 11 are fixed in a linear array on the outer wall of the stirring rod 10. A first transmission belt 9 is arranged inside the first mounting groove, and the rotating shaft of the gravure roller 4 is connected to the stirring rod 10 through the first transmission belt 9.

[0045] Specifically, during the process of the motor 5 driving the gravure roller 4 to rotate, the gravure roller 4 drives the stirring rod 10 to rotate through the first transmission belt 9, and the rotation of the stirring rod 10 drives the stirring blade 11 to rotate, thereby fully stirring the ink inside the storage tank 2, increasing the fluidity of the ink inside the storage tank 2, which is beneficial to reduce the agglomeration of the ink inside the storage tank 2 due to standing, thereby maintaining the transferability of the ink, preventing the transferability of the ink from deteriorating due to agglomeration, and further deteriorating the adhesion effect between the ink and the PVC wall cloth, resulting in uneven printing patterns.

[0046] In a further implementation process, a mounting frame is symmetrically fixed on the top of the support seat 12, a plurality of rotating rollers 16 are rotatably connected between the two mounting frames, a cavity 17 is opened in the side wall of the top of the support seat 12, and a heating plate 18 is fixedly installed inside the cavity 17.

[0047] Specifically, the PVC wall cloth can be supported and tensioned by the multiple rotating rollers 16, and can also be squeezed on the top of the support seat 12. The heating plate 18 can increase the temperature in the cavity 17. After the heat inside the cavity 17 is transferred to the PVC wall cloth, it is beneficial to heat the PVC wall cloth, and plays a role in preheating the PVC wall cloth, which is beneficial to improve the activity of the PVC wall cloth fibers, so that the PVC wall cloth can better absorb the printing ink. Preheating also helps to evenly distribute and fix the ink, making the color of the printed pattern more vivid and lasting.

[0048] In the further implementation process, a mounting seat 13 is slidably connected to the inner wall of the support seat 12, a scraper 14 is fixedly installed inside the mounting seat 13, and the end of the scraper 14 located outside the mounting seat 13 is in contact with the outer wall of the gravure cylinder 4, and elastic telescopic rods 15 are symmetrically fixedly installed on the inner wall of the support seat 12, and the telescopic ends of the two elastic telescopic rods 15 are fixedly connected to the side of the mounting seat 13 away from the scraper 14.

[0049] In a specific implementation process, convex strips are symmetrically fixed on the side walls of the mounting seat 13, and grooves are symmetrically opened on the inner wall of the supporting seat 12, and the convex strips are slidably connected to the inside of the grooves.

[0050] Specifically, the elastic telescopic rod 15 can provide elastic support for the mounting seat 13. After the ink scraper 14 is in contact with the gravure cylinder 4, the elastic telescopic rod 15 is in a compressed state. The elastic force of the elastic telescopic rod 15 causes the ink scraper 14 to be squeezed against the outer wall of the gravure cylinder 4, which helps to prevent the ink on the outer wall of the gravure cylinder 4 from being scraped off cleanly due to a gap between the ink scraper 14 and the outer wall of the gravure cylinder 4.

[0051] In the further implementation process, the scraping mechanism includes a sliding block 22, which is slidably connected to the inside of the support seat 12, and the end of the sliding block 22 slides against the bottom side wall of the scraper 14. A U-shaped cavity 39 is opened inside the support seat 12, and a transmission assembly is arranged inside the U-shaped cavity 39. The transmission assembly is used to drive the sliding block 22 to move back and forth along the bottom side wall of the scraper 14.

[0052] In the specific implementation process, sliding grooves are symmetrically opened on the side walls of the sliding block 22, and protrusions are symmetrically fixed on the inner wall of the support seat 12. The protrusions are slidably connected to the sliding grooves. The sliding block 22 includes an inclined end and a rectangular end. The upper surface of the inclined end is in sliding contact with the lower surface of the scraper 14, and the upper surface of the rectangular end is in sliding contact with the lower surface of the mounting seat 13. The upper surface of the inclined end is located above the upper surface of the rectangular end, and the bottom end of the inclined end is located below the rectangular end.

[0053] Specifically, during the printing process of PVC wall cloth, the sliding block 22 reciprocates along the bottom of the scraper 14, and scrapes the residual ink on the scraper 14 onto the inclined surface of the inclined end through the inclined end, which cleans the scraper 14 and helps to improve the scraping efficiency of the scraper 14 on the gravure roller 4. The scraped ink flows downward along the inclined surface and drips from the bottom of the inclined surface into the discharge port 36, and finally enters the interior of the collecting tank 38 along the discharge port 36. The reciprocating movement of the sliding block 22 can accelerate the flow of ink on the inclined surface.

[0054] In the further implementation process, the transmission assembly includes a groove 24, which is opened through the side wall of the sliding block 22, and straight racks 25 are fixed on the top side wall and the bottom side wall of the groove 24. The inner wall of the support seat 12 is rotatably connected with the first rotating rod 21. The two ends of the first rotating rod 21 respectively penetrate the inner wall of the support seat 12 and enter the interior of the U-shaped cavity 39. The first rotating rod 21 penetrates the groove 24, and an arc-shaped rack is fixed on the outer wall of the first rotating rod 21 located inside the groove 24, and the arc-shaped rack matches the straight rack 25.

[0055] The inside of the U-shaped cavity 39 is symmetrically provided with a second transmission belt 20, and the two second transmission belts 20 are respectively located at the two ends of the first rotating rod 21. The first rotating rod 21 is connected to the rotating roller 16 through the second transmission belt 20. Both ends of the first rotating rod 21 are fixed with a U-shaped frame 26, and a round rod 27 is fixed on the side wall of the U-shaped frame 26. A counterweight block 28 is slidably connected to the outer wall of the round rod 27.

[0056] Specifically, during the movement of the PVC wall cloth, the PVC wall cloth is tensioned by the rotating roller 16, so that the PVC wall cloth can drive the rotating roller 16 to rotate, and the rotating roller 16 drives the first rotating rod 21 to rotate through the second transmission belt 20. During the rotation of the first rotating rod 21, the arc-shaped rack is driven to rotate. During the rotation, the arc-shaped rack first engages with the straight rack 25 located at the bottom of the groove 24, driving the sliding block 22 to move toward the position of the gravure cylinder 4. After the arc-shaped rack rotates half a circle around the first rotating rod 21, the arc-shaped rack engages with the straight rack 25 located at the top of the groove 24, driving the sliding block 22 to move away from the gravure cylinder 4, so that during the rotation of the first rotating rod 21, the sliding block 22 can be driven to reciprocate to scrape off the ink attached to the scraper 14.

[0057] During the rotation of the first rotating rod 21, the first rotating rod 21 drives the U-shaped frame 26 to rotate, and the rotation of the U-shaped frame 26 can drive the counterweight block 28 to rotate. During the rotation of the counterweight block 28, the counterweight block 28 slides downward along the round rod 27 under the action of its own gravity and impacts the side wall of the U-shaped frame 26. The vibration generated by the impact of the counterweight block 28 can be transmitted to the first rotating rod 21, and then transmitted from the first rotating rod 21 to the sliding block 22. The vibration of the sliding block 22 can be transmitted to the ink attached to the inclined surface of the sliding block 22, thereby facilitating the ink to slide off the inclined surface.

[0058] In the further implementation process, a mounting block is symmetrically fixed on one side of the support seat 12 close to the gravure cylinder 4, and a second rotating rod 30 is rotatably connected between the two mounting blocks. A cylinder 31 is fixedly sleeved on the outer wall of the second rotating rod 30, and an inclined plate 32 is fixed to the inner bottom of the support seat 12. The inclined plate 32 is slidably connected to the outer wall of the cylinder 31. One end of the second rotating rod 30 close to the motor 5 passes through the corresponding mounting block and is connected to the third transmission belt 29. The second rotating rod 30 is connected to the rotating roller 16 through the third transmission belt 29.

[0059] Specifically, during the movement of the PVC wall cloth, the PVC wall cloth drives the rotating roller 16 to rotate, and the rotating roller 16 drives the second rotating rod 30 to rotate through the third transmission belt 29, and the second rotating rod 30 drives the cylinder 31 to rotate. The rotation direction of the cylinder 31 is opposite to the gravure cylinder 4, and the outer wall of the cylinder 31 is close to the outer wall of the gravure cylinder 4.

[0060] The gravure roller 4 will bring out a large amount of ink from the storage tank 2 during the rotation. When the gravure roller 4 rotates with the ink passing the position of the cylinder 31, the cylinder 31 comes into contact with the ink during the rotation and can adhere part of the ink to the outer wall of the cylinder 31. During the rotation of the cylinder 31, the ink adhered to the outer wall of the cylinder 31 is scraped off to the top of the inclined plate 32 by the inclined plate 32, and flows downward along the surface of the inclined plate 32 to the discharge port 36. The scraping of the ink on the outer wall of the cylinder 31 by the inclined plate 32 is conducive to the first removal of more ink adhered to the outer wall of the gravure roller 4 by the cylinder 31.

[0061] In the process of scraping the ink attached to the outer wall of the gravure cylinder 4 by the ink scraper 14, the ink will accumulate on the outer wall of the ink scraper 14 to form larger ink agglomerates. The agglomerated ink will fall downward onto the outer wall of the cylinder 31 under the action of gravity. The fallen agglomerated ink can be transported to the inclined plate 32 through the rotation of the cylinder 31, thereby preventing the agglomerated ink from falling into the interior of the storage tank 2 and causing uneven printing patterns.

[0062] In the further implementation process, an air pump 33 is fixed on the side wall of the support seat 12, and the air inlet end of the air pump 33 is fixedly connected to an air inlet pipe 34, and the air inlet pipe 34 is connected to the outside atmosphere. The air outlet end of the air pump 33 is fixedly connected to an air outlet pipe 35, and the air outlet end of the air outlet pipe 35 passes through the side wall of the support seat 12 and enters the interior of the U-shaped cavity 39. An air bag 19 is arranged inside the support seat 12, and the air bag 19 is connected to the interior of the U-shaped cavity 39. An air outlet 23 is fixed on one side of the air bag 19, and the air outlet 23 is connected to the outside atmosphere. A pressure relief valve is arranged inside the air outlet 23, and a plurality of vibration plates 37 are fixed to the inner bottom of the U-shaped cavity 39.

[0063] Specifically, through the air pump 33, after the air pump 33 is started, the outside air enters the interior of the air pump 33 from the air inlet pipe 34, and then enters the air outlet pipe 35 from the air outlet end of the air pump 33, and then enters the interior of the U-shaped cavity 39 from the air outlet pipe 35, and then enters the interior of the airbag 19 from the interior of the U-shaped cavity 39. As the gas pressure inside the airbag 19 increases, the airbag 19 expands so that the side walls of the airbag 19 are squeezed against the upper surface of the mounting seat 13, which has a vibration-reducing effect on the mounting seat 13, which helps to reduce the influence of the vibration of the sliding block 22 on the ink scraper 14.

[0064] After the internal air pressure of the airbag 19 is greater than the set value of the pressure relief valve, the gas inside the airbag 19 passes through the pressure relief valve and is discharged from the air outlet 23. During the airflow flowing inside the U-shaped cavity 39, the airflow can blow the vibration plate 37 to generate vibration. The vibration generated by the vibration plate 37 can be transmitted to the inclined plate 32 through the support seat 12, which is beneficial for the ink on the inclined plate 32 to flow downward to the inside of the discharge port 36.

[0065] Working principle of the present invention:

[0066] When the present invention is in use, a staff member starts the motor 5 to drive the gravure roller 4 to rotate. In the process of bringing out the ink inside the storage tank 2, the rotating shaft of the gravure roller 4 drives the stirring rod 10 to rotate through the first transmission belt 9, and the stirring rod 10 drives the stirring blade 11 to rotate to stir the ink inside the storage tank 2, which is beneficial to increase the fluidity of the ink, thereby reducing the agglomeration of the ink inside the storage tank 2.

[0067] When the gravure roller 4 moves to the position of the cylinder 31 with the ink, the ink on the outer wall of the gravure roller 4 adheres to the outer wall of the cylinder 31 and is scraped off by the inclined plate 32 as the cylinder 31 rotates, thereby achieving the first scraping of the ink adhered to the outer wall of the gravure roller 4. When the gravure roller 4 continues to rotate to the position of the scraper 14, the ink remaining on the outer wall of the gravure roller 4 is scraped off for the second time by the scraper 14.

[0068] The first scraping of the ink by the cylinder 31 is helpful for the scraper 14 to scrape the residual ink more thoroughly. At the same time, it also reduces the accumulation of ink on the side wall of the scraper 14, reduces the wear caused by the ink adhering to the scraper 14, and reduces the occurrence of ink condensing into large clumps and dripping on the outer wall of the scraper 14. The cylinder 31 is also used to receive the ink clumps dripping from the outer wall of the scraper 14, and transports the clumped ink to the surface of the inclined plate 32 during the rotation of the cylinder 31, which helps to prevent the clumped ink from falling back into the interior of the storage tank 2.

[0069] In the process of the movement of the PVC wall cloth driving the rotating roller 16 to rotate, the rotating roller 16 drives the sliding block 22 to move back and forth, and the upper surface of the inclined end of the sliding block 22 slides in contact with the bottom side wall of the scraper 14. As the sliding block 22 moves back and forth, the ink remaining on the bottom side wall of the scraper 14 can be scraped off and moved to the inclined surface of the sliding block 22, thereby cleaning the bottom side wall of the scraper 14 and further reducing the wear of the scraper 14 by the ink. Through the counterweight block 28, during the rotation of the first rotating rod 21, the counterweight block 28 frequently impacts the side wall of the U-shaped frame 26, and the generated vibration is transmitted to the sliding block 22, which can help the ink to slide off the inclined surface of the sliding block 22.

[0070] The heating plate 18 provided can preheat the PVC wall cloth, which is beneficial to increase the absorption of ink by the PVC wall cloth, so that the printed pattern is clear. The air bag 19 provided can play a role of heat insulation, which can prevent the heat of the heating plate 18 from being transferred to the ink inside the support seat 12, which is beneficial to prevent the ink from drying out due to heat. At the same time, the air bag 19 provided can be squeezed on the top of the mounting seat 13 to reduce the vibration of the mounting seat 13, thereby reducing the vibration of the ink scraper 14, and can also increase the static friction of the mounting seat 13, which is beneficial to prevent the mounting seat 13 from moving due to the reciprocating movement of the sliding block 22. The elastic telescopic rod 15 provided can support the mounting seat 13, and further reduce the vibration of the mounting seat 13 through the elastic force, further promoting the vibration reduction of the ink scraper 14, which is beneficial to reduce the wear of the ink scraper 14 while the ink scraper 14 scrapes the ink on the surface of the gravure cylinder 4.

[0071] The above shows and describes 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, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A printing device based on the production and processing of PVC wall cloth, comprising a base (1), characterized in that: The top of the base (1) is provided with a storage tank (2), the top of the base (1) is symmetrically fixed with a support frame (3), a gravure roller (4) is arranged between the two support frames (3), the top of the base (1) is fixed with a motor (5) for driving the gravure roller (4) to rotate, the storage tank (2) is provided with a stirring assembly, the stirring assembly is used to stir the ink inside the storage tank (2), the top of the base (1) is fixed with a support seat (12), the support seat (12) is provided with an ink scraper (14), the support seat (12) is provided with a scraping mechanism, the scraping mechanism is used to scrape the ink attached to the ink scraper (14), the base (1) is provided with a collecting tank (38), the inner bottom of the support seat (12) is provided with a discharge port (36), the bottom of the discharge port (36) is connected to the feed port of the collecting tank (38).

2. A printing device based on PVC wall cloth production and processing according to claim 1, characterized in that: A cylinder (6) is fixed on the top of the two support frames (3), a slide groove is penetrated through the side wall of the support frame (3), the telescopic end of the cylinder (6) penetrates the top of the support frame (3) and is fixed with a slider (7), the slider (7) is slidably connected inside the slide groove, a pressure roller (8) is rotatably connected between the two sliders (7), and the pressure roller (8) is located directly above the gravure cylinder (4).

3. A printing device based on PVC wall cloth production and processing according to claim 1, characterized in that: The stirring assembly comprises a first mounting groove, the first mounting groove is opened at the top of the base (1), the second mounting groove is opened at the bottom of the support frame (3), the first mounting groove is communicated with the second mounting groove, a stirring rod (10) is rotatably connected to the inner wall of the storage groove (2), the end of the stirring rod (10) passes through the inner wall of the storage groove (2) and enters the interior of the first mounting groove, a plurality of stirring blades (11) are fixed in a linear array on the outer wall of the stirring rod (10), a first transmission belt (9) is arranged inside the first mounting groove, and the rotating shaft of the gravure cylinder (4) is connected to the stirring rod (10) through the first transmission belt (9).

4. The printing equipment based on PVC wall cloth production and processing according to claim 1 is characterized in that: A mounting frame is symmetrically fixed on the top of the support seat (12), a plurality of rotating rollers (16) are rotatably connected between the two mounting frames, a cavity (17) is opened in the side wall of the top of the support seat (12), and a heating plate (18) is fixedly installed inside the cavity (17).

5. A printing device based on PVC wall cloth production and processing according to claim 4, characterized in that: The inner wall of the support seat (12) is slidably connected with a mounting seat (13), an ink scraper (14) is fixedly mounted inside the mounting seat (13), the end of the ink scraper (14) located outside the mounting seat (13) contacts the outer wall of the gravure cylinder (4), and elastic telescopic rods (15) are symmetrically fixedly mounted on the inner wall of the support seat (12), and the telescopic ends of the two elastic telescopic rods (15) are fixedly connected to a side of the mounting seat (13) away from the ink scraper (14).

6. The printing equipment based on PVC wall cloth production and processing according to claim 5 is characterized in that: The scraping mechanism comprises a sliding block (22), the sliding block (22) is slidably connected to the inside of the support seat (12), the end of the sliding block (22) is in sliding contact with the bottom side wall of the scraper (14), a U-shaped cavity (39) is provided inside the support seat (12), and a transmission component is provided inside the U-shaped cavity (39), and the transmission component is used to drive the sliding block (22) to move back and forth along the bottom side wall of the scraper (14).

7. A printing device based on PVC wall cloth production and processing according to claim 6, characterized in that: The transmission assembly comprises a groove (24), the groove (24) is penetrated and opened on the side wall of the sliding block (22), straight racks (25) are fixed on the top side wall and the bottom side wall of the groove (24), the inner wall of the support seat (12) is rotatably connected with a first rotating rod (21), the two ends of the first rotating rod (21) respectively penetrate the inner wall of the support seat (12) and enter the interior of the U-shaped cavity (39), the first rotating rod (21) penetrates the groove (24), and an arc-shaped rack is fixed on the outer wall of the first rotating rod (21) located inside the groove (24), and the arc-shaped rack matches the straight rack (25).

8. The printing equipment based on PVC wall cloth production and processing according to claim 7 is characterized in that: The U-shaped cavity (39) is symmetrically provided with a second transmission belt (20), and the two second transmission belts (20) are respectively located at two ends of the first rotating rod (21), and the first rotating rod (21) is connected to the rotating roller (16) through the second transmission belt (20). U-shaped frames (26) are fixed to both ends of the first rotating rod (21), a round rod (27) is fixed to the side wall of the U-shaped frame (26), and a counterweight (28) is slidably connected to the outer wall of the round rod (27).

9. The printing equipment based on PVC wall cloth production and processing according to claim 4 is characterized in that: A mounting block is symmetrically fixed on one side of the support seat (12) close to the gravure cylinder (4); a second rotating rod (30) is rotatably connected between the two mounting blocks; a cylinder (31) is fixedly sleeved on the outer wall of the second rotating rod (30); an inclined plate (32) is fixed on the inner bottom of the support seat (12); the inclined plate (32) is slidably connected to the outer wall of the cylinder (31); one end of the second rotating rod (30) close to the motor (5) passes through the corresponding mounting block and is connected to a third transmission belt (29); the second rotating rod (30) is transmission-connected to the rotating roller (16) via the third transmission belt (29).

10. The printing equipment based on PVC wall cloth production and processing according to claim 6 is characterized in that: An air pump (33) is fixed on the side wall of the support seat (12); an air inlet end of the air pump (33) is fixedly connected to an air inlet pipe (34), the air inlet pipe (34) is connected to the outside atmosphere; an air outlet end of the air pump (33) is fixedly connected to an air outlet pipe (35), the air outlet end of the air outlet pipe (35) passes through the side wall of the support seat (12) and enters the inside of the U-shaped cavity (39); an air bag (19) is arranged inside the support seat (12), the air bag (19) is connected to the inside of the U-shaped cavity (39); an air outlet (23) is fixed on one side of the air bag (19), the air outlet (23) is connected to the outside atmosphere; a pressure relief valve is arranged inside the air outlet (23); and a plurality of vibration plates (37) are fixed to the inner bottom of the U-shaped cavity (39).

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