CN203126106U - A stone paper wall wallpaper horizontal rotary screen printing machine - Google Patents

Abstract

A horizontal rotary screen printing machine for stone paper wall paper comprises an unreeling unit, a paper feeding deviation correcting unit, a first machine frame, a rotary screen printing mechanism, a drying unit, a cooling unit, a paper output deviation correcting unit and a reeling unit; a first tensioning roller, a second tensioning roller, a third tensioning roller and a fourth tensioning roller are arranged at the upper part of the first frame, the printing guide belt is sleeved on the first tensioning roller and the second tensioning roller, and the mesh belt is sleeved on the third tensioning roller and the fourth tensioning roller; the unwinding unit, the paper feeding deviation correcting unit, the first frame, the cooling unit, the paper discharging deviation correcting unit and the winding unit are sequentially fixed on the base; the drying unit comprises a first drying oven, a second drying oven, a third drying oven and a fourth drying oven, the four drying ovens have the same structure, and the four drying ovens are fixed on the first rack; the rotary screen printing mechanism comprises a first rotary screen printing unit, a second rotary screen printing unit, a third rotary screen printing unit and a fourth rotary screen printing unit, wherein the first rotary screen printing unit, the second rotary screen printing unit, the third rotary screen printing unit and the fourth rotary screen printing unit are sequentially arranged on the printing guide belt; the utility model discloses guaranteed the accuracy of wall paper register, cover flower, the wall paper flower shape of producing, the design is clear, and the construction effect is good, and the commonality is strong.

Description

A stone paper wall wallpaper horizontal rotary screen printing machine

technical field

The utility model belongs to the field of printing equipment for building decoration materials, and relates to a rotary screen printing machine for printing stone paper wall wallpaper, in particular to a horizontal rotary screen printing machine for stone paper wall wallpaper.

Background technique

Existing wall wallpaper printing methods include gravure printing, flexographic printing, flat screen printing, rotary screen printing and digital printing. Among them, rotary screen printing is widely used due to the advantages of large ink supply, full pattern, strong three-dimensional pattern, good printing uniformity, and simple operation. Rotary screen printing is to inject the slurry into the rotary screen through the beating pump, and use the printing scraper to make the slurry evenly pass through the mesh holes and print on the substrate, and then enter the oven for drying at 160~180°C Winding, complete the production process. The current rotary screen printing machine adopts a vertical structure and is mainly composed of a paper feeding unit 1, a printing unit 2, a drying unit 3, and a paper output unit 4. The transmission process of the paper base 5 is completed by traction, so the wall paper base material must have good tensile strength and thermal stability, and the traction tension can reach more than 12-16 kgf.

At present, the commonly used wallpaper substrates are mainly pure paper and non-woven paper. These papers are made of a large amount of high-quality raw wood pulp, which not only produces a large amount of waste water and waste gas during the processing process, pollutes the environment, but also produces expensive wallpapers; with the development of the wallpaper industry, the demand for wallpaper substrates is increasing. The bigger, the excessive deforestation, the sharp reduction of forest resources has brought serious harm to the ecological environment, and people began to look for new materials to replace these substrates. Among them, stone paper (patent number: CN 201380616Y) is one of them, which has the characteristics of protecting the ecological environment, saving energy and water, and being healthy and environmentally friendly. The stone paper substrate is made of a large amount of calcium carbonate and PE polymer as raw materials. Its thermal stability and tensile strength are different from traditional wallpaper substrates, which are easily deformed by heat. Therefore, when using rotary screen printing, the drying temperature must be lower than the thermal deformation temperature of stone paper, and the mechanical transmission system must be operated in a tension-free state to ensure that the stone paper wall wallpaper will not have alignment and overlap deviations during the rotary screen printing process.

Utility model content

The purpose of this utility model is to provide a stone paper wall wallpaper horizontal rotary screen printing machine, which can realize the rotary screen printing process of stone paper base material wall wallpaper.

The technical solutions adopted are:

A horizontal rotary screen printing machine for stone paper wall and wallpaper, including an unwinding unit, a paper feed deviation correction unit, a frame, a rotary screen printing mechanism, a drying unit, a cooling unit, a paper discharge deviation correction unit and a winding unit;

The first tension roller, the second tension roller, the third tension roller and the fourth tension roller are fixed horizontally at the set position on the upper part of the frame, and the printing guide belt is sleeved on the first tension roller and the fourth tension roller. On the second tension roller, the synchronous rotation of the first tension roller and the second tension roller drives the printing guide belt to rotate horizontally, and the mesh belt is set on the third tension roller and the fourth tension roller, and the third tension roller The synchronous rotation with the fourth tension roller drives the mesh belt to rotate horizontally;

The unwinding unit is fixedly installed on the left end of the base, the paper feed deviation correction unit is fixedly installed on the base, and the paper feed deviation correction unit is located on the right side of the unwinding unit, the frame is fixedly installed on the base, and the frame is located on the paper feed deviation correction unit. On the right side of the unit, the cooling unit is fixedly installed on the base, and the cooling unit is located on the right side of the frame. It is fixedly installed on the base, and the winding unit is located on the right side of the output paper deviation correction unit;

The drying unit includes a first oven, a second oven, a third oven and a fourth oven. The first oven, the second oven, the third oven and the fourth oven have the same structure. The first oven, the second oven, the third oven The first oven, the second oven and the third oven are respectively located on the upper end surface of the printing belt, and the fourth oven is located on the upper end surface of the mesh belt;

The above-mentioned first oven includes two heat exchangers, a circulation fan and a housing, the two heat exchangers are respectively installed on the inner wall of the housing, the circulation fan is installed on the middle inner wall of the housing, and the heat exchanger and the circulation Fans are all commercially available products;

The rotary screen printing mechanism includes a first rotary screen printing unit, a second rotary screen printing unit, a third rotary screen printing unit and a fourth rotary screen printing unit, the first rotary screen printing unit is installed on the upper end surface of the printing guide belt, And located on the left side of the first oven, the second rotary screen printing unit is installed on the upper end surface of the printing belt, and is located on the left side of the second oven, the third rotary screen printing unit is installed on the upper end surface of the printing belt on the left side of the third oven, and the fourth cylinder printing unit is installed on the upper end surface of the printing belt and is located on the right side of the third oven;

Above-mentioned cooling unit comprises the first cooling roll, the second cooling roll, the third cooling roll and frame, the first cooling roll, the second cooling roll and the third cooling roll are fixedly arranged on the frame, the first cooling roll, the second cooling roll Both the cooling roll and the third cooling roll are circulated and cooled through the cold water pipe and the return water pipe.

The unwinding roulette of the above-mentioned unwinding unit is fixed on the roulette shaft, and the roulette shaft is fixedly installed on the support, and the rewinding unit and the unwinding unit have the same structure, which is a known technology;

The above paper feed correction unit is an electric eye correction device. The signal sent by the laser probe is directly output to the computer. The computer feeds back the signal to the device according to the predetermined program, and the device executes the predetermined action command. The structure of the paper discharge correction unit is the same as that of the paper feed correction unit. , is a known technology;

The above-mentioned first cylinder printing unit, second cylinder printing unit, third cylinder printing unit and fourth cylinder printing unit are all known technologies.

working principle:

Working principle of the oven:

As shown in Figure 2, after the air inside the oven is heated by the heat exchangers (radiators) on both sides, the circulation fan sucks the heated hot air, blows it out through the air duct, and directly blows the hot air to the substrate on the guide belt surface on, so as to realize the drying of the substrate. At the same time, the hot air returned through the conduction belt is mixed with a small amount of fresh air, and then enters the heat exchanger again for heating, thus circulating and heating.

The heat source of this oven is steam, and the temperature of the oven is controlled by a double temperature control mode, that is, a pneumatic film cut-off valve is used to control the steam intake, and a temperature-controlled steam trap is used to control the drainage. The temperature control is accurate, the internal temperature distribution is uniform, and the temperature difference does not exceed ±1°C.

The oven adopts a horizontal type. The traditional wall and wallpaper printing machine oven structure is vertical. The length of the oven is 4 meters. , the length of the printing machine oven should be extended to 8~10 meters, and the oven structure should be designed as horizontal.

The difference from the existing rotary screen printing machine is that the printing unit of the stone paper wall wallpaper rotary screen printing machine is on the same level as the oven, and the printing guide belt is used to support the paper, and the stone paper is fixed on a certain elastic surface with water-based adhesive. , On the printing guide belt that can be driven with the paper, after the rotary screen printing, the paper enters the oven along with the guide belt. The temperature of the oven should be controlled at 40~75 ℃, and the speed should be controlled at 30 m/min. The machine performs winding and completes the processing.

The unwinding unit is located at the beginning of the entire production line. In order to ensure that the printing is accurate and aligned, a paper feeding deviation correction unit is installed after the unwinding unit. The paper base 21 is smoothly pasted on the coated water-based resin after being corrected by the paper feeding deviation correction unit. On the surface of the printing guide belt of the glue, by adjusting the viscosity and thickness of the resin glue, the peeling degree of the paper base and the guide belt is controlled.

The process of supporting paper for the printing guide belt is to coat a layer of water-based resin glue on the surface of the guide belt, and the stone paper base passes through two pressure rollers to be smoothly pasted on the surface of the printing guide belt. The role of conveying the paper base prevents the stone paper from being deformed by traction. On the other hand, it plays the role of fixing and binding the paper base to prevent the stone paper base from being deformed and displaced during the drying process.

The stone paper substrate runs continuously with the printing guide belt, and passes through the first cylinder printing unit, the first oven, the second cylinder printing unit, the second oven, the third cylinder printing unit and the third oven respectively for printing and drying. Dry, the temperature of the oven is generally set at 40~75 ℃ (adjusted according to the properties of the slurry); the paper base is printed by the fourth cylinder printing unit and enters the fourth oven, and the temperature of the fourth oven is generally set at about 100 ℃, which is The entire printing process completes the surface solidification, drying and foaming of the stone paper base. The fourth oven uses a mesh belt to transport the paper. Due to the circulating air flow in the fourth oven, the paper base 21 is suspended on the mesh belt at this time. The mesh belt is used because the paper base does not need to be printed again, and it is not necessary to stick the paper base to the printing guide belt. At the same time, suspending on the mesh belt is conducive to the curing, drying and foaming process of the wall wallpaper. The stone paper base passes through the first step. After four ovens, the surface temperature is very high, and it needs to be cooled and shaped by the cooling unit, then the deviation is corrected and the winding is completed to complete the processing.

The utility model has the advantages of:

The utility model adopts the guide belt to convey the wall wallpaper, which can completely control the thermal deformation or displacement of the paper base, increase the length of the oven, and ensure the drying effect. It ensures the accuracy of the wall wallpaper to the flowers and sets of flowers, and the produced wall wallpaper has a clear flower shape and color, and the construction effect is good. The horizontal rotary screen printing machine of the utility model can not only meet the rotary screen printing requirements of the stone paper-based wall wallpaper, but also be suitable for the rotary screen printing of the traditional paper-based wall wallpaper, with wide application range and strong versatility.

Description of drawings

Fig. 1 is a front structural schematic view of the utility model.

Fig. 2 is a schematic diagram of the longitudinal section structure of the oven part of the utility model during use.

Detailed ways

A horizontal rotary screen printing machine for stone paper wall and wallpaper, comprising an unwinding unit 6, a paper feeding deviation correction unit 7, a frame 8, a rotary screen printing mechanism, a drying unit, a cooling unit 17, a paper output deviation correction unit 18 and a winding Unit 19, characterized by:

On the set position on the frame 8 top, the first tension roller 25, the second tension roller 26, the third tension roller 27 and the fourth tension roller 28 are fixed horizontally, and the printing guide belt 20 is sleeved on the second tension roller. On the tension roller 25 and the second tension roller 26, the mesh belt 5 is set on the third tension roller 27 and the fourth tension roller 28;

The unwinding unit 6 is fixedly arranged on the left end of the base 4, the paper feeding deviation correction unit 7 is fixedly installed on the base 4, and the paper feeding deviation correction unit 7 is located on the right side of the unwinding unit 6, and the frame 8 is fixedly installed on the base 4 , and the frame 8 is located on the right side of the paper feeding deviation correction unit 7, the cooling unit 17 is fixedly installed on the base 4, and the cooling unit 17 is located on the right side of the frame 8, and the paper output deviation correction unit 18 is fixedly installed on the base 4 , and the output paper deviation correction unit 18 is located on the right side of the cooling unit 17, the winding unit 19 is fixedly installed on the base 4, and the winding unit 19 is located on the right side of the paper output deviation correction unit 18;

Drying unit comprises first oven 10, second oven 12, the 3rd oven 14 and the 4th oven 16, the structure of the first oven 10, the 2nd oven 12, the 3rd oven 14 and the 4th oven 16 are identical, the first oven 10. The second oven 12, the third oven 14 and the fourth oven 16 are horizontally and fixedly installed on the upper end surface of the frame 8, and the first oven 10, the second oven 12 and the third oven 14 are respectively located On the upper end face, the fourth oven 16 is located on the upper end face of the mesh belt 5;

The above-mentioned first oven 10 includes two heat exchangers 1, a circulation fan 2 and a housing 3, the two heat exchangers 1 are installed on the inner wall of the housing 3 respectively, and the circulation fan 2 is installed on the middle inner wall of the housing 3 ;

The rotary screen printing mechanism comprises a first rotary screen printing unit 9, a second rotary screen printing unit 11, a third rotary screen printing unit 13 and a fourth rotary screen printing unit 15, and the first rotary screen printing unit 9 is installed on the printing guide belt 20, and is located on the left side of the first oven 10, the second rotary screen printing unit 11 is installed on the upper end surface of the printing guide belt 20, and is located on the left side of the second oven 12, the third rotary screen printing The unit 13 is installed on the upper end surface of the printing guide belt 20, and is located on the left side of the third oven 14, and the fourth rotary screen printing unit 15 is installed on the upper end surface of the printing guide belt 20, and is located on the left side of the third oven 14. Right;

Above-mentioned cooling unit 17 comprises the first cooling roll 22, the second cooling roll 23, the third cooling roll 24 and frame 29, and the first cooling roll 22, the second cooling roll 23 and the third cooling roll 24 are fixedly arranged on the frame 29, and the first cooling roll 22, the second cooling roll 23 and the third cooling roll 24 are all circulated and cooled by the cold water pipe and the return water pipe.

Claims (1)

1. A horizontal rotary screen printing machine for stone paper wall and wallpaper, including an unwinding unit (6), a paper feed correction unit (7), a first frame (8), a rotary screen printing mechanism, a drying unit, and a cooling unit (17), the output paper deviation correction unit (18) and the winding unit (19), are characterized in that: The first tension roller (25), the second tension roller (26), the third tension roller (27) and the fourth tension roller are fixed horizontally at the set position on the upper part of the first frame (8) (28), the printing guide belt (20) is set on the first tension roller (25) and the second tension roller (26), and the mesh belt (5) is set on the third tension roller (27) and the Four tension rollers (28); The unwinding unit (6) is fixedly installed on the left end of the base (4), the paper feed deviation correction unit (7) is fixedly installed on the base (4), and the paper feed deviation correction unit (7) is located on the right side of the unwinding unit (6). side, the first frame (8) is fixedly installed on the base (4), and the first frame (8) is located on the right side of the paper feed correction unit (7), and the cooling unit (17) is fixedly installed on the base ( 4), and the cooling unit (17) is located on the right side of the first frame (8), the paper output correction unit (18) is fixedly installed on the base (4), and the paper output correction unit (18) is located on the cooling unit On the right side of (17), the winding unit (19) is fixedly installed on the base (4), and the winding unit (19) is located on the right side of the output paper deviation correction unit (18); The drying unit includes a first oven (10), a second oven (12), a third oven (14) and a fourth oven (16), the first oven (10), the second oven (12), the third oven ( 14) The same structure as the fourth oven (16), the first oven (10), the second oven (12), the third oven (14) and the fourth oven (16) are fixed horizontally on the first frame ( 8), the first oven (10), the second oven (12) and the third oven (14) are respectively located on the upper end surface of the printing guide belt (20), and the fourth oven (16) is located on the mesh belt ( 5) on the upper end face; The above-mentioned first oven (10) includes two heat exchangers (1), a circulation fan (2) and a housing (3), and the two heat exchangers (1) are respectively installed on the inner wall of the housing (3), and the circulation The fan (2) is installed on the middle inner wall of the casing (3); The cylinder printing mechanism includes the first cylinder printing unit (9), the second cylinder printing unit (11), the third cylinder printing unit (13) and the fourth cylinder printing unit (15), the first cylinder printing The unit (9) is installed on the upper end surface of the printing guide belt (20), and is located on the left side of the first oven (10), and the second rotary screen printing unit (11) is installed on the printing guide belt (20). On the end face, and located on the left side of the second oven (12), the third rotary screen printing unit (13) is installed on the upper end surface of the printing guide belt (20), and located on the left side of the third oven (14), The fourth rotary screen printing unit (15) is installed on the upper end surface of the printing guide belt (20), and is located on the right side of the third oven (14); The above-mentioned cooling unit (17) includes the first cooling roll (22), the second cooling roll (23), the third cooling roll (24) and the second frame (29), the first cooling roll (22), the second The cooling roll (23) and the third cooling roll (24) are fixedly arranged on the second frame (29), and the first cooling roll (22), the second cooling roll (23) and the third cooling roll (24) are all It is cooled by circulating cold water pipes and return water pipes.

Images