Printing device for PVC wall cloth production and using method thereof

Abstract

The invention relates to the technical field of printing devices, in particular to a printing device for PVC wall cloth production and a using method thereof.The printing device comprises a base and a wall cloth body, an ink fountain is formed in the center of the top of the base, a printing roller is rotationally connected into the ink fountain, an extrusion roller is arranged at the top of the printing roller, and an ink scraping blade is slidably installed on one side of the top of the ink fountain. Through the arrangement of the cleaning plate, the cleaning plate fully abuts against the wall cloth body through elastic force applied to the cleaning plate after the spring contracts, and in the subsequent rotating process of the wall cloth body, the cleaning plate effectively cleans the printing face of the wall cloth body; according to the wall cloth, the situation that printing ink cannot be attached to the wall cloth body due to the fact that dust adheres to the printing face of the wall cloth body is avoided, through arrangement of a cotton plate, the cotton plate conducts secondary cleaning on the printing face of the wall cloth body, the wall cloth body is cleaned again through a clamping brush plate, and the printing face of the wall cloth body is further cleaned.

Description

Technical Field

[0001] The invention relates to the field of printing devices, and in particular to a printing device for producing PVC wall cloth and a use method thereof. Background Art

[0002] PVC wall covering is unique with its special three-dimensional pattern, which also makes its printing process different from traditional flat wall covering. The purpose of printing is to give the wall covering various decorative patterns and improve the beauty of the wall covering, which is usually done using a printing press.

[0003] In the patent with publication number CN218287156U, a PVC wall cloth surface printing processing device is disclosed, which includes a processing table, a printing frame and a stand. An inkjet head is fixed at the bottom of the printing frame, and a heat treatment mechanism is arranged inside the stand.

[0004] However, the above-mentioned printing processing device still has certain defects when in use. In the prior art, since there are often dust impurities on the raw materials of the wall cloth, the dust impurities will cause the ink to be unable to effectively adhere to the wall cloth. Secondly, in the process of printing on the wall cloth, there is often a situation where the printed pattern becomes blurred due to insufficient contact between the scraper and the printing roller. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a printing device for PVC wall cloth production and a method of using the same.

[0006] In order to achieve the above purpose, the technical solution adopted by the present invention is: a printing device for PVC wall cloth production, including a base and a wall cloth body, an ink groove is opened at the top center of the base, a printing roller is rotatably connected in the ink groove, an extrusion roller is arranged on the top of the printing roller, a scraper is slidably installed on one side of the top of the ink groove, a second air pump is fixedly connected to one side of the base, the second air pump is used to cause the scraper to abut against the printing roller, vertical plates are fixedly connected to both sides of the top of the base, a pressurizing component is arranged on the vertical plate, and the pressurizing component is used to make the printing roller abut against the wall cloth body.

[0007] Preferably, the pressurizing assembly includes two piston cylinders, mounting grooves are provided at the centers of the two vertical plates, the two piston cylinders are respectively fixedly connected to the inner top wall plates of the two mounting grooves, a piston plate is slidably connected inside the piston cylinder, a piston rod is fixedly connected to the bottom of the piston plate, the piston rod passes through the bottom wall plate of the piston cylinder, both ends of the extrusion roller are rotatably connected to lifting sliders, a sliding groove is provided at the bottom of the mounting groove, the lifting slider is slidably connected in the sliding groove, and the bottoms of the two piston rods are respectively fixedly connected to the top wall plates of the two lifting sliders.

[0008] Preferably, a U-shaped tube is fixedly connected at the top center of the two vertical plates, and both ends of the U-shaped tube are respectively fixedly connected at the top center of the two vertical plates, and the two ends of the U-shaped tube are respectively connected to the two piston cylinders, one side of the horizontal end of the U-shaped tube is connected to the first air pump, and the first air pump is fixedly connected to the top of one of the vertical plates, and the center of the side of the horizontal end of the U-shaped tube away from the first air pump is connected to a cross tube, and one end of the cross tube away from the U-shaped tube is connected to a rectangular tube, an air outlet is opened at the bottom of the rectangular tube, and an air pressure valve is arranged inside the cross tube.

[0009] Preferably, a loading roller is arranged above one end of the base, and the loading roller is rotatably connected to the side of the two vertical plates opposite to each other. A cleaning assembly is arranged between the loading roller and the extrusion roller, and a lowering roller is rotatably connected to the end of the two vertical plates away from the loading roller. A fixed roller is rotatably connected to the top of the side of the two vertical plates opposite to each other, and a supporting roller is rotatably connected to the bottom of the side of the two vertical plates opposite to each other. The fixed roller and the supporting roller are both arranged between the loading roller and the extrusion roller.

[0010] Preferably, the cleaning assembly includes a cotton board, which is fixedly connected to the opposite sides of the two vertical plates, and an abutment roller is arranged on the top side of the cotton board, and the abutment roller and the cotton board are respectively abutted against the two sides of the wall cloth body, and the abutment roller and the cotton board are arranged on the side of the supporting roller close to the feeding roller, and a heating plate is arranged on the side of the extrusion roller close to the supporting roller, and the heating plate is fixedly connected to the top wall panel of the base, and a clamping brush plate is fixedly connected to the heating plate, and the clamping brush plate is clamped on both sides of the wall cloth body, and the clamping brush plate is located between the supporting roller and the fixed roller.

[0011] Preferably, the wall cloth body passes through the abutment roller and the cotton board in sequence from the feeding roller, then passes under the support roller, then passes over the fixed roller, and finally passes through the squeezing roller and the printing roller before being rolled up on the feeding roller;

[0012] A motor is fixedly connected at the center of one side of the base, and an output shaft of the motor passes through the wall plate of the base and is fixedly connected to the printing roller. The motor is used to drive the printing roller to rotate.

[0013] Preferably, an air groove is opened on the top wall plate on the side of the ink groove close to the feeding roller, and an abutting slider is slidably connected in the air groove, and a scraper is fixedly connected to the side of the abutting slider close to the ink groove, and the scraper abuts against the printing roller, and a second air pump is fixedly connected to one side of the base, and the output end of the second air pump is connected to an air inlet pipe, which is arranged in the base, and the air inlet pipe is connected to the air groove, and the connection between the two is located on the side of the air groove away from the ink groove, and a check valve is provided at the connection between the air groove and the second air pump.

[0014] Preferably, the center of the air groove is connected with a built-in air pipe, a pressure valve is provided at one end of the built-in air pipe close to the air groove, a transverse groove is provided at the bottom of the heating plate, the transverse groove is connected with one end of the built-in air pipe away from the air groove, a plurality of air holes are connected on the side of the transverse groove away from the ink groove, a nozzle is provided at the end of the air holes away from the transverse groove, a collecting groove is provided at the top of one end of the base, and the collecting groove is located below the cotton board.

[0015] Preferably, a baffle is fixedly connected to one end of the top of the base, the baffle is located on a side of the collecting pool away from the ink tank, an installation chamber is opened at the bottom of the baffle, a slide is slidably connected in the installation chamber, a plurality of sliding columns are fixedly connected to the top of the slide, the sliding columns penetrate the top wall panel of the baffle, an end of the sliding column away from the slide is fixedly connected to the bottom wall panel of the cleaning plate, the cleaning plate abuts against the wall cloth body on the feeding roller, a plurality of springs are fixedly connected to the inner bottom wall panel of the installation chamber, an end of the spring away from the bottom wall panel in the installation chamber is fixedly connected to the bottom wall panel of the slide.

[0016] Preferably, a method for using a printing device for producing PVC wall cloth comprises the following steps:

[0017] Step 1: First, install the wall cloth body through the feeding roller, and then pass one end of the wall cloth body through the gap between the abutting roller and the cotton board, under the supporting roller, the clamping brush plate, above the fixed roller, between the squeezing roller and the printing roller, and on the unloading roller in sequence;

[0018] Step 2: Turn on the first air pump and the second air pump. The first air pump allows the squeezing roller to fully contact the wall cloth body with the printing roller, and the second air pump allows the scraper to fully contact the printing roller.

[0019] Step 3: After the first air pump and the second air pump are turned on, the motor is turned on synchronously so that the motor drives the printing roller to rotate to print on the wall cloth body.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention provides a cleaning plate and utilizes the elastic force applied to the cleaning plate by the spring after contraction, so that the cleaning plate and the wall cloth body are fully abutted. In the subsequent rotation of the wall cloth body, the cleaning plate effectively cleans the printed surface of the wall cloth body, which is beneficial to avoid the situation that the ink cannot adhere to the wall cloth body due to dust sticking to the printed surface of the wall cloth body. Through the provision of the cotton board, the cotton board performs secondary cleaning on the printed surface of the wall cloth body, and the wall cloth body is cleaned again by the clamping brush plate, and the printed surface of the wall cloth body is further cleaned, so as to reduce the situation that the ink cannot effectively adhere to the wall cloth body due to dust on the surface.

[0022] 2. The present invention, through the provision of a clamping brush plate and a cotton board, can, on the one hand, enable the wall cloth body to be cleaned in a clamped state; on the other hand, by utilizing the clamping brush plate and the cotton board to clamp the wall cloth body, the wall cloth body can also be in a stretched state, which promotes the printing of the wall cloth body to a certain extent and helps to avoid the occurrence of folding in printing due to the looseness of the wall cloth body. Secondly, the abutment and friction of the cleaning plate on the wall cloth body can also promote the wall cloth body to be in a stretched state during the printing process.

[0023] 3. The present invention provides an air groove. After the second air pump is turned on, it supplies air to the air groove through the air inlet pipe, and then uses the air pressure to lift the abutting slider, so that the abutting slider drives the scraper to fully contact with the printing roller, which is beneficial to avoid the blurred printed pattern due to insufficient abutment between the scraper and the printing roller; at the same time, in the process of contact between the printing roller and the scraper, when vibration occurs between the printing roller and the scraper, the gas in the air groove can effectively buffer the vibration, reduce the vibration of the scraper, and thus extend the service life of the scraper, which is beneficial to avoid the scraper from being broken or damaged due to excessive vibration force, and is beneficial to maintaining the service life of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective;

[0026] Figure 3 It is a schematic cross-sectional view of the structure of the base of the present invention;

[0027] Figure 4 For the present invention Figure 3 An enlarged schematic diagram of the structure of section A is shown;

[0028] Figure 5 For the present invention Figure 3 An enlarged schematic diagram of the structure of part B is shown;

[0029] Figure 6 For the present invention Figure 3 An enlarged schematic diagram of the C-section structure is shown;

[0030] Figure 7 For the present invention Figure 3 An enlarged schematic diagram of the D-section structure is shown;

[0031] Figure 8 For the present invention Figure 3 An enlarged schematic diagram of the structure of section A is shown;

[0032] Fig. 9It is a schematic cross-sectional view of the structure of the U-shaped tube of the present invention;

[0033] Fig.10 For the present invention Fig. 9 An enlarged schematic diagram of the structure of part E is shown;

[0034] Fig.11 It is a schematic cross-sectional view of the structure of the air intake pipe of the present invention;

[0035] Fig.12 It is a schematic diagram of the connection structure of the cleaning plate of the present invention;

[0036] Fig.13 It is a schematic diagram of the connection structure of the ink scraper of the present invention.

[0037] In the figure: 1. base; 2. first air pump; 3. U-shaped tube; 4. rectangular tube; 5. lifting slider; 6. motor; 7. second air pump; 8. vertical plate; 9. baffle; 10. feeding roller; 11. squeezing roller; 12. printing roller; 13. unloading roller; 14. fixed roller; 15. cleaning plate; 16. spring; 17. sliding column; 18. sliding plate; 19. cotton plate; 20. clamping brush plate; 21. heating plate; 22. supporting roller; 23. built-in air pipe; 24. horizontal groove; 25. abutting slider; 26. scraper; 27. air groove; 28. ink groove; 29. ​​horizontal tube; 30. air outlet; 31. piston cylinder; 32. piston rod; 33. piston plate; 34. wall cloth body; 35. air inlet pipe; 36. nozzle. DETAILED DESCRIPTION

[0038] 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.

[0039] like Figures 1 to 13 A printing device for PVC wall cloth production shown in the figure includes a base 1 and a wall cloth body 34. An ink groove 28 is opened at the top center of the base 1. A printing roller 12 is rotatably connected in the ink groove 28. An extrusion roller 11 is arranged on the top of the printing roller 12. A scraper 26 is slidably installed on one side of the top of the ink groove 28. A second air pump 7 is fixedly connected to one side of the base 1. The second air pump 7 is used to cause the scraper 26 to abut against the printing roller 12. Vertical plates 8 are fixedly connected to both sides of the top of the base 1. A pressurizing component is arranged on the vertical plate 8. The pressurizing component is used to make the printing roller 12 abut against the wall cloth body 34.

[0040] In a specific implementation, the ink tank 28 is configured as a conventional configuration in the prior art, and is provided with an ink filling port, which will not be disclosed in detail herein.

[0041] As a further implementation scheme of the present invention, the pressurizing assembly includes two piston cylinders 31, and mounting grooves are opened at the centers of the two vertical plates 8. The two piston cylinders 31 are respectively fixedly connected to the inner top wall panels of the two mounting grooves. A piston plate 33 is slidably connected inside the piston cylinder 31, and a piston rod 32 is fixedly connected to the bottom of the piston plate 33. The piston rod 32 passes through the bottom wall panel of the piston cylinder 31. Both ends of the extrusion roller 11 are rotatably connected to a lifting slider 5, and a sliding groove is opened at the bottom of the mounting groove. The lifting slider 5 is slidably connected in the sliding groove, and the bottoms of the two piston rods 32 are respectively fixedly connected to the top wall panels of the two lifting sliders 5.

[0042] In a specific implementation, T-shaped sliding blocks are arranged on both sides of the lifting slider 5, and T-shaped sliding grooves are opened on both sides of the bottom end of the installation groove. The sliding blocks are slidably connected in the sliding grooves, so that the lifting slider 5 can be effectively limited.

[0043] As a further implementation scheme of the present invention, a U-shaped tube 3 is fixedly connected to the top center of the two vertical plates 8, and both ends of the U-shaped tube 3 are respectively fixedly connected to the top center of the two vertical plates 8, and the two ends of the U-shaped tube 3 are respectively connected to the two piston cylinders 31, and one side of the horizontal end of the U-shaped tube 3 is connected to the first air pump 2, and the first air pump 2 is fixedly connected to the top of one of the vertical plates 8. The center of the side of the horizontal end of the U-shaped tube 3 away from the first air pump 2 is connected to a transverse tube 29, and one end of the transverse tube 29 away from the U-shaped tube 3 is connected to a rectangular tube 4, and an air outlet hole 30 is opened at the bottom of the rectangular tube 4, and an air pressure valve is arranged inside the transverse tube 29.

[0044] In a specific implementation, the air pressure valve is provided with an air pressure preset value, and when the air pressure in the U-shaped tube 3 is higher than the air pressure preset value, the air pressure valve opens.

[0045] As a further embodiment of the present invention, a loading roller 10 is arranged above one end of the base 1, and the loading roller 10 is rotatably connected to the side of the two vertical plates 8 opposite to each other. A cleaning component is arranged between the loading roller 10 and the squeezing roller 11, and a lowering roller 13 is rotatably connected to the end of the two vertical plates 8 away from the loading roller 10, and a fixed roller 14 is rotatably connected to the top of the side of the two vertical plates 8 opposite to each other, and a supporting roller 22 is rotatably connected to the bottom of the side of the two vertical plates 8 opposite to each other, and the fixed roller 14 and the supporting roller 22 are both arranged between the loading roller 10 and the squeezing roller 11.

[0046] In the specific implementation, both sides of the support roller 22 and the fixed roller 14 are provided with a rotating shaft, which is rotatably connected to the wall plates of the two vertical plates 8, and the abutting roller is also provided. Both the upper material roller 10 and the lower material roller 13 can be detachably installed. The detachable installation of the upper material roller 10 and the lower material roller 13 is a prior art and will not be disclosed in detail here.

[0047] As a further embodiment of the present invention, the cleaning component includes a cotton board 19, which is fixedly connected to the opposite sides of the two vertical boards 8. An abutment roller is arranged on the top side of the cotton board 19, and the abutment roller and the cotton board 19 are respectively abutted on the two sides of the wall cloth body 34. The abutment roller and the cotton board 19 are arranged on the side of the support roller 22 close to the feeding roller 10, and a heating plate 21 is arranged on the side of the extrusion roller 11 close to the support roller 22. The heating plate 21 is fixedly connected to the top wall panel of the base 1, and a clamping brush plate 20 is fixedly connected to the heating plate 21. The clamping brush plate 20 is clamped on both sides of the wall cloth body 34, and the clamping brush plate 20 is located between the support roller 22 and the fixed roller 14.

[0048] In a specific implementation, in a low temperature environment, if the temperature of the wall cloth body 34 is too low, printing will fail. By setting the heating plate 21, the wall cloth body 34 can be effectively preheated at a low temperature, which is beneficial to avoid the temperature difference between the wall cloth body 34 and the ink causing water vapor to grow, thereby causing quality problems in printing.

[0049] As a further embodiment of the present invention, the wall cloth body 34 passes through the abutment roller and the cotton board 19 from the feeding roller 10 in sequence, then passes under the support roller 22, then passes over the fixed roller 14, and finally passes through the squeezing roller 11 and the printing roller 12 before being rolled up on the unloading roller 13;

[0050] A motor 6 is fixedly connected to the center of one side of the base 1. The output shaft of the motor 6 passes through the wall plate of the base 1 and is fixedly connected to the printing roller 12. The motor 6 is used to drive the printing roller 12 to rotate.

[0051] In a specific implementation, a transmission box is provided on one side of the lower material roller 13 and the upper material roller 10, and the transmission box is used to realize the release and winding of the wall cloth body 34. This technology is prior art and will not be disclosed in detail here.

[0052] As a further implementation scheme of the present invention, an air groove 27 is opened on the top wall plate on the side of the ink groove 28 close to the feeding roller 10, and an abutting slider 25 is slidably connected in the air groove 27, and a scraper 26 is fixedly connected to the side of the abutting slider 25 close to the ink groove 28, and the scraper 26 abuts against the printing roller 12, and a second air pump 7 is fixedly connected to one side of the base 1, and an output end of the second air pump 7 is connected to an air inlet pipe 35, and the air inlet pipe 35 is arranged in the base 1, and the air inlet pipe 35 is connected to the air groove 27, and the connection between the two is located on the side of the air groove 27 away from the ink groove 28, and a check valve is provided at the connection between the air groove 27 and the second air pump 7.

[0053] In a specific implementation, by setting the check valve, after the second air pump 7 is turned off, the scraper 26 can still be in contact with the printing roller 12.

[0054] As a further implementation scheme of the present invention, a built-in air pipe 23 is connected at the center of the air groove 27, and a pressure valve is provided at one end of the built-in air pipe 23 close to the air groove 27. A transverse groove 24 is provided at the bottom of the heating plate 21, and the transverse groove 24 is connected to one end of the built-in air pipe 23 away from the air groove 27. A plurality of air holes are connected on the side of the transverse groove 24 away from the ink groove 28, and a nozzle 36 is provided at one end of the air hole away from the transverse groove 24. A collecting groove is provided at the top of one end of the base 1, and the collecting groove is located below the cotton board 19.

[0055] In a specific implementation, the pressure valve is provided with a preset pressure value, and when the air pressure in the air tank 27 is higher than the preset pressure value, the pressure valve opens.

[0056] As a further embodiment of the present invention, a baffle 9 is fixedly connected to one end of the top of the base 1, and the baffle 9 is located on the side of the collecting pool away from the ink tank 28. An installation chamber is opened at the bottom of the baffle 9, and a slide plate 18 is slidably connected in the installation chamber. A plurality of sliding columns 17 are fixedly connected to the top of the slide plate 18, and the sliding columns 17 penetrate the top wall panel of the baffle 9. The end of the sliding column 17 away from the slide plate 18 is fixedly connected to the bottom wall panel of the cleaning plate 15, and the cleaning plate 15 abuts against the wall cloth body 34 on the feeding roller 10. A plurality of springs 16 are fixedly connected to the inner bottom wall panel of the installation chamber, and the end of the spring 16 away from the bottom wall panel in the installation chamber is fixedly connected to the bottom wall panel of the slide plate 18.

[0057] In a specific implementation, a foldable filter cloth is arranged between two adjacent sliding columns 17 . The foldable filter cloth is a conventional arrangement in the prior art and will not be disclosed in detail herein.

[0058] As a further embodiment of the present invention, a method for using a printing device for producing PVC wall cloth comprises the following steps:

[0059] Step 1: First, install the wall cloth body 34 through the feeding roller 10, and then pass one end of the wall cloth body 34 through the gap between the abutting roller and the cotton board 19, under the supporting roller 22, the clamping brush plate 20, above the fixed roller 14, between the squeezing roller 11 and the printing roller 12, and on the unloading roller 13 in sequence;

[0060] Step 2: Turn on the first air pump 2 and the second air pump 7. The first air pump 2 enables the squeezing roller 11 to fully contact the wall cloth body 34 with the printing roller 12, and the second air pump 7 enables the scraper 26 to fully contact the printing roller 12.

[0061] Step three: After the first air pump 2 and the second air pump 7 are turned on, the motor 6 is turned on synchronously, so that the motor 6 drives the printing roller 12 to rotate to print the wall cloth body 34.

[0062] Working principle of the present invention:

[0063] When the present invention is in use, the wall cloth body 34 is first installed through the feeding roller 10, so that the wall cloth body 34 is pressed on the cleaning plate 15. During this process, the cleaning plate 15 will abut against the wall cloth body 34, and then the squeezing of the cleaning plate 15 by the wall cloth body 34 will cause the spring 16 to contract. After the spring 16 contracts, it will apply an elastic force to the cleaning plate 15, thereby making the cleaning plate 15 fully abut against the wall cloth body 34. In the subsequent rotation of the wall cloth body 34, the cleaning plate 15 effectively cleans the printed surface of the wall cloth body 34, which is beneficial to avoid the situation where the ink cannot adhere to the wall cloth body 34 due to dust sticking to the printed surface of the wall cloth body 34.

[0064] Then, one end of the wall cloth body 34 is passed through between the abutting roller and the cotton board 19, below the supporting roller 22, the clamping brush plate 20, above the fixed roller 14, between the squeezing roller 11 and the printing roller 12, and on the unloading roller 13. When the wall cloth body 34 passes between the abutting roller and the cotton board 19, the cotton board 19 will contact the cotton board 19 under the action of the abutting roller, so that the cotton board 19 performs secondary cleaning on the printing surface of the wall cloth body 34, further promoting the cleanliness of the wall cloth body 34, so that the ink can be fully adhered to the wall cloth body 34.

[0065] After the wall cloth body 34 passes through the support roller 22, the wall cloth body 34 will pass through the clamping brush plate 20, and the wall cloth body 34 will be cleaned again by the clamping brush plate 20, and the printed surface of the wall cloth body 34 will be further cleaned to reduce the situation where the ink cannot be effectively adhered due to dust on the surface of the wall cloth body 34.

[0066] In the process of cleaning the wall cloth body 34, the wall cloth body 34 on the feeding roller 10 will Figure 3 The wall cloth body 34 rotates in a clockwise direction from the perspective of rotation, so the wall cloth body 34 will move relative to the side of the cleaning plate 15 close to the collecting groove, so that the dust and impurities on the printed surface of the wall cloth body 34 are scraped into the collecting groove for collection. When the wall cloth body 34 passes through the cotton board 19, the cotton board 19 will perform secondary cleaning on the wall cloth body 34. At this time, the dust scraped off by the cotton board 19 will fall into the collecting groove. After the clamping brush plate 20 scrapes off the dust on the wall cloth body 34, the dust will fall on the side of the heating plate 21 close to the collecting groove.

[0067] By setting the clamping brush plate 20 and the cotton board 19, on the one hand, the wall cloth body 34 can be cleaned in a clamped state, and on the other hand, the clamping of the wall cloth body 34 by the clamping brush plate 20 and the cotton board 19 can also make the wall cloth body 34 in a stretched state, which promotes the printing of the wall cloth body 34 to a certain extent and helps to avoid folding of the printing due to the looseness of the wall cloth body 34. Secondly, the abutment and friction of the cleaning plate 15 on the wall cloth body 34 can also promote the wall cloth body 34 to be in a stretched state during the printing process.

[0068] By turning on the first air pump 2 and the second air pump 7, the first air pump 2 will blow air into the U-shaped tube 3 after being turned on, so that the air pressure in the U-shaped tube 3 increases, and then the air pressure in the U-shaped tube 3 can push the piston plate 33 in the piston cylinder 31 downward, and then the piston plate 33 drives the piston rod 32 and the lifting slider 5 to slide downward, so that the lifting slider 5 can drive the extrusion roller 11 to move downward. On the one hand, it can make the wall cloth body 34 further straightened, and on the other hand, it can also make the printing surface of the wall cloth body 34 fully contact with the printing roller 12, which is beneficial to avoid the situation that the ink cannot adhere to the wall cloth body 34 due to insufficient contact between the printing roller 12 and the wall cloth body 34.

[0069] When the air pressure in the U-shaped tube 3 is higher than the preset value of the air pressure of the air pressure valve, the air pressure valve opens, so that the excess gas in the U-shaped tube 3 can enter the rectangular tube 4 through the horizontal tube 29, and then blow onto the non-printing surface of the wall cloth body 34 through the air outlet 30. The airflow can be used to cool the non-printing surface of the wall cloth body 34 on the one hand, which is beneficial to avoid the ink from being unable to solidify quickly due to the excessive temperature of the wall cloth body 34. On the other hand, it can also cause the wall cloth body 34 to shake, which is beneficial to shake off the excess ink on the wall cloth body 34, and avoid the ink from sticking to the wall cloth body 34, which will cause the printing layer to be stained with excess ink due to the presence of excess ink when the subsequent unloading roller 13 winds up the wall cloth body 34.

[0070] After the second air pump 7 is turned on, it will supply air to the air groove 27 through the air inlet pipe 35, and then use the air pressure to lift the contact slider 25, so that the contact slider 25 drives the scraper 26 to fully contact the printing roller 12. At the same time, during the contact between the printing roller 12 and the scraper 26, when vibration occurs between the printing roller 12 and the scraper 26, the gas in the air groove 27 can effectively buffer the vibration, reduce the vibration of the scraper 26, and then extend the service life of the scraper 26, which is conducive to avoiding the scraper 26 from breaking and being damaged due to excessive vibration force, and is conducive to maintaining the service life of the scraper 26. At the same time, by reducing vibration, it is also possible to avoid the occurrence of line marks on the printed surface of the wall cloth body 34 due to vibration.

[0071] When the air pressure in the air groove 27 is higher than the preset pressure value of the pressure valve, the pressure valve opens, allowing the excess gas in the air groove 27 to enter the built-in air pipe 23, then enter the transverse groove 24, and finally blow toward the direction of the heating plate 21 close to the collection groove through the nozzle 36, so that the dust accumulated on the side of the heating plate 21 close to the collection groove can be blown into the collection groove. Through the setting of the sliding column 17, there is a gap between the cleaning plate 15 and the baffle 9, so that the airflow can be discharged through the gap between the cleaning plate 15 and the sliding column 17.

[0072] After the first air pump 2 and the second air pump 7 are turned on, the motor 6 is turned on synchronously. By turning on the motor 6, the motor 6 drives the printing roller 12 to rotate, so as to print the wall cloth body 34.

[0073] 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 for producing PVC wall cloth, comprising a base (1) and a wall cloth body (34), characterized in that: An ink groove (28) is provided at the center of the top of the base (1), a printing roller (12) is rotatably connected in the ink groove (28), a squeezing roller (11) is arranged on the top of the printing roller (12), a scraper (26) is slidably mounted on one side of the top of the ink groove (28), a second air pump (7) is fixedly connected to one side of the base (1), the second air pump (7) is used to cause the scraper (26) to abut against the printing roller (12), both sides of the top of the base (1) are fixedly connected to vertical plates (8), a pressurizing component is arranged on the vertical plates (8), and the pressurizing component is used to cause the printing roller (12) to abut against the wall cloth body (34).

2. A printing device for producing PVC wall cloth according to claim 1, characterized in that: The pressurizing assembly comprises two piston cylinders (31), the centers of the two vertical plates (8) are provided with mounting grooves, the two piston cylinders (31) are respectively fixedly connected to the inner top wall plates of the two mounting grooves, a piston plate (33) is slidably connected inside the piston cylinder (31), a piston rod (32) is fixedly connected to the bottom of the piston plate (33), the piston rod (32) passes through the bottom wall plate of the piston cylinder (31), both ends of the squeezing roller (11) are rotatably connected to the lifting slider (5), the bottom of the mounting groove is provided with a sliding groove, the lifting slider (5) is slidably connected in the sliding groove, and the bottoms of the two piston rods (32) are respectively fixedly connected to the top wall plates of the two lifting sliders (5).

3. A printing device for producing PVC wall cloth according to claim 2, characterized in that: A U-shaped tube (3) is fixedly connected at the top center of the two vertical plates (8), the two ends of the U-shaped tube (3) are respectively fixedly connected at the top center of the two vertical plates (8), and the two ends of the U-shaped tube (3) are respectively connected to the two piston cylinders (31), one side of the horizontal end of the U-shaped tube (3) is connected to the first air pump (2), the first air pump (2) is fixedly connected to the top of one of the vertical plates (8), the center of the side of the horizontal end of the U-shaped tube (3) away from the first air pump (2) is connected to a transverse tube (29), the end of the transverse tube (29) away from the U-shaped tube (3) is connected to a rectangular tube (4), the bottom of the rectangular tube (4) is provided with an air outlet (30), and an air pressure valve is arranged inside the transverse tube (29).

4. A printing device for producing PVC wall cloth according to claim 3, characterized in that: A loading roller (10) is arranged above one end of the base (1), the loading roller (10) is rotatably connected to the mutually opposite sides of the two vertical plates (8), a cleaning component is arranged between the loading roller (10) and the squeezing roller (11), a loading roller (13) is rotatably connected to the ends of the two vertical plates (8) away from the loading roller (10), a fixing roller (14) is rotatably connected to the tops of the mutually opposite sides of the two vertical plates (8), a supporting roller (22) is rotatably connected to the bottoms of the mutually opposite sides of the two vertical plates (8), and both the fixing roller (14) and the supporting roller (22) are arranged between the loading roller (10) and the squeezing roller (11).

5. A printing device for producing PVC wall cloth according to claim 4, characterized in that: The cleaning assembly comprises a cotton plate (19), the cotton plate (19) being fixedly connected to the mutually opposite sides of the two vertical plates (8), an abutting roller being arranged on the top side of the cotton plate (19), the abutting roller and the cotton plate (19) abutting against the two sides of the wall cloth body (34) respectively, the abutting roller and the cotton plate (19) being arranged on the side of the supporting roller (22) close to the feeding roller (10), a heating plate (21) being arranged on the side of the squeezing roller (11) close to the supporting roller (22), the heating plate (21) being fixedly connected to the top wall plate of the base (1), a clamping brush plate (20) being fixedly connected to the heating plate (21), the clamping brush plate (20) being clamped on the two sides of the wall cloth body (34), and the clamping brush plate (20) being located between the supporting roller (22) and the fixed roller (14).

6. A printing device for producing PVC wall cloth according to claim 5, characterized in that: The wall cloth body (34) passes through the abutment roller and the cotton board (19) from the feeding roller (10) in sequence, then passes under the support roller (22), then passes over the fixed roller (14), and finally passes through the squeezing roller (11) and the printing roller (12) before being rolled up on the feeding roller (13); A motor (6) is fixedly connected to the center of one side of the base (1); an output shaft of the motor (6) passes through the wall plate of the base (1) and is fixedly connected to the printing roller (12); the motor (6) is used to drive the printing roller (12) to rotate.

7. A printing device for producing PVC wall cloth according to claim 6, characterized in that: An air groove (27) is provided on the top wall plate of the ink groove (28) on the side close to the feeding roller (10), and an abutting slider (25) is slidably connected in the air groove (27). A scraper (26) is fixedly connected to the side of the abutting slider (25) close to the ink groove (28), and the scraper (26) abuts against the printing roller (12). A second air pump (7) is fixedly connected to one side of the base (1), and an air inlet pipe (35) is connected to the output end of the second air pump (7). The air inlet pipe (35) is arranged in the base (1), and the air inlet pipe (35) is connected to the air groove (27), and the connection between the two is located on the side of the air groove (27) away from the ink groove (28). A check valve is arranged at the connection between the air groove (27) and the second air pump (7).

8. A printing device for producing PVC wall cloth according to claim 7, characterized in that: The center of the air groove (27) is connected to a built-in air pipe (23), and a pressure valve is arranged at one end of the built-in air pipe (23) close to the air groove (27). A transverse groove (24) is provided at the bottom of the heating plate (21), and the transverse groove (24) is connected to one end of the built-in air pipe (23) away from the air groove (27). A side of the transverse groove (24) away from the ink groove (28) is connected to a plurality of air holes, and a nozzle (36) is arranged at one end of the air hole away from the transverse groove (24). A collecting groove is provided at the top of one end of the base (1), and the collecting groove is located below the cotton board (19).

9. A printing device for producing PVC wall cloth according to claim 8, characterized in that: A baffle (9) is fixedly connected to one end of the top of the base (1), and the baffle (9) is located on a side of the collection pool away from the ink tank (28). An installation chamber is provided at the bottom of the baffle (9), and a slide plate (18) is slidably connected in the installation chamber. A plurality of slide columns (17) are fixedly connected to the top of the slide plate (18), and the slide columns (17) penetrate the top wall plate of the baffle (9). One end of the slide column (17) away from the slide plate (18) is fixedly connected to the bottom wall plate of the cleaning plate (15), and the cleaning plate (15) abuts against the wall cloth body (34) on the feeding roller (10). A plurality of springs (16) are fixedly connected to the inner bottom wall plate of the installation chamber, and one end of the spring (16) away from the bottom wall plate in the installation chamber is fixedly connected to the bottom wall plate of the slide plate (18).

10. The method for using the printing device for producing PVC wall cloth according to claim 9, characterized in that: The method of use includes the following steps: Step 1: First, install the wall cloth body (34) through the feeding roller (10), and then pass one end of the wall cloth body (34) through the gap between the abutting roller and the cotton plate (19), under the supporting roller (22), the clamping brush plate (20), above the fixed roller (14), between the squeezing roller (11) and the printing roller (12), and on the unloading roller (13); Step 2: Turn on the first air pump (2) and the second air pump (7), the first air pump (2) causes the squeezing roller (11) to fully contact the wall cloth body (34) with the printing roller (12), and the second air pump (7) causes the scraper (26) to fully contact the printing roller (12); Step three: After the first air pump (2) and the second air pump (7) are turned on, the motor (6) is turned on synchronously, so that the motor (6) drives the printing roller (12) to rotate to print on the wall cloth body (34).

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