CN113119586B - A non-woven bag back printing device - Google Patents

Abstract

A non-woven bag back printing device comprises a frame, which is in an inverted "L" shape and comprises a horizontal beam and a vertical beam. A tensioning roller group is arranged on the horizontal beam, and a sensing device, a guide roller, a printing roller group and a traction roller are arranged on the vertical beam in sequence along the feeding direction. The sensing device comprises a horizontal bar which can move up and down along the vertical beam, a limiting roller is arranged on the rear side of the horizontal bar, a radio frequency sensor is arranged on the horizontal bar, and the radio frequency sensor can move laterally along the horizontal bar, the guide roller is arranged below the sensing device, and at least one group of printing roller groups is arranged below the guide roller, and the printing roller group comprises an ink cartridge, an ink roller is arranged inside the ink cartridge, an ink transfer roller is arranged inside the ink roller, a plate roller is arranged inside the ink transfer roller, a pressure roller is arranged inside the plate roller, and the material passes between the plate roller and the pressure roller, a traction roller is arranged obliquely above the printing roller group, and a traction pressure roller is arranged inside the traction roller.

Description

A non-woven bag back printing device

Technical Field

The invention belongs to the field of printing equipment, and further to the technical field of flexible packaging printing equipment, and specifically relates to a back printing device for a non-woven bag.

Background technique

At present, there is a clear trend of small-package flour sales in my country. In large supermarkets, flour is mainly packaged in sizes of 2.5 kg to 10 kg, of which non-woven fabrics account for more than 90%. In some large wholesale markets and farmers' markets, the number of small-package flour non-woven fabrics is also increasing rapidly.

For packaging bags with high selling prices and exquisite packaging, double-sided lamination technology is often used, that is, the traditional gravure printing process is first used to print the image and text on the film, and then the lamination process is used to laminate the film with the pattern on the non-woven fabric. Generally, this process is used for non-woven bags with patterns that require higher requirements or have more colors. Its characteristics are exquisite printing, machine production, and fast production speed. The finished product has excellent waterproof performance, and the durability of the finished product is better than that of non-woven bags produced by other processes, but its cost is relatively high.

Therefore, many manufacturers choose to use lamination printing on the front and offset printing on the back, that is, the ink is transferred to the back of the non-woven bag through a roller.

In the prior art, the non-woven bag is printed, color printed, bag-made, back-printed and sewn through the following steps. First, the rolled non-woven fabric is color printed, where the color printing is printed on one side of the non-woven fabric roll, and then the bag is made to make the non-woven fabric take the shape of a bag. Then, the non-woven bag is manually turned over and put into the offset printing machine for back printing, and then sewing is performed.

Summary of the invention

The technical problem to be solved by the present invention is to provide a back printing machine which can perform another printing method after printing on the front of a non-woven bag without going through bag making and manual handling, and then perform the bag making step, thereby avoiding multiple manual handling and maintaining the smoothness of the production line.

The specific scheme of the present invention is:

A non-woven bag back printing device comprises a frame, which is in an inverted "L" shape and comprises a horizontal beam and a vertical beam. A tensioning roller group is arranged on the horizontal beam. A sensing device, a guide roller, a printing roller group and a traction roller are arranged on the vertical beam in sequence along the feeding direction. The sensing device comprises a horizontal bar which can move up and down along the vertical beam. A limiting roller is arranged on the rear side of the horizontal bar. A radio frequency sensor is arranged on the horizontal bar. The radio frequency sensor can move laterally along the horizontal bar. The guide roller is arranged below the sensing device. At least one printing roller group is arranged below the guide roller. The printing roller group comprises an ink cartridge. An ink roller is arranged inside the ink cartridge. An ink transfer roller is arranged inside the ink roller. A plate roller is arranged inside the ink transfer roller. A pressure roller is arranged inside the plate roller. The material to be printed passes between the plate roller and the pressure roller. A traction roller is arranged obliquely above the printing roller group. A traction pressure roller is arranged inside the traction roller.

Furthermore, the vertical beam is provided with a platform extending outward, the platform is provided with a first guide rail, a workbench is provided on the first guide rail, a plate roller holder is provided on the inner side of the workbench, a plate roller is provided on the plate roller holder, a second guide rail is provided on the outer side of the workbench, an ink cartridge rack is provided on the second guide rail, an ink cartridge, an ink roller and an ink transfer roller are provided on the ink cartridge rack, the ink cartridge is fixedly connected to the ink cartridge rack, the ink roller is arranged in the ink cartridge and connected to the ink cartridge rack via a bearing, and the ink transfer roller is arranged on one side of the ink roller and connected to the ink cartridge rack via a bearing.

Furthermore, a telescopic cylinder is provided at the upper end of the plate roller bracket, an induction iron block is provided at the outer end of the shaft of the plate roller, and a proximity sensor corresponding to the induction iron block is provided on the plate roller bracket.

Furthermore, a displacement monitoring device is provided at the discharge end of the traction roller, and the displacement monitoring device includes a bracket, in which an upper roller group and a lower roller group are provided. The lower roller group is hinged to the bracket and connected to a displacement sensor, and one end of the displacement sensor is hinged to the bracket and the other end is hinged to the lower roller group.

Furthermore, a drying device is provided between the printing roller group and the traction roller, and the drying device includes a drying box, and a plurality of groups of resistance wires are provided in the drying box. A hair dryer is provided on one side of the drying box, and the fan is connected to the drying box via an air duct, and the air outlet of the drying box faces the direction of the material.

Furthermore, the tensioning roller set is three sets of rollers arranged at the upper end of the frame.

Furthermore, a center rod is provided in the guide roller, and a shaft sleeve is provided between the center rod and the guide roller, the guide roller, the center rod and the shaft sleeve can move relative to each other, a fixing hole is provided on the shaft sleeve, and the shaft sleeve and the center rod can be fixed by a limit nut, screws are provided at both ends of the center rod, and the cross bar can move up and down along the screw, the guide roller and the screw are connected by a 90° bevel gear set, a bending piece that can slide left and right along the cross bar is provided on the cross bar, the bending piece is connected to the cross bar by a positioning nut, the bending piece is provided with a radio frequency sensor, the center rod is connected to the frame by a bearing, and a handle is provided at one end of the center rod.

The beneficial effects of the present invention are:

It can print on the front of the non-woven bag without going through bag making and manual handling, and then perform another printing method, and then perform the bag making step, which can avoid multiple manual handling and keep the production line smooth.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the structure of this application;

FIG2 is a schematic diagram of the structure of the printing roller group of the present application;

FIG3 is a schematic diagram of the structure of the sensor device of the present application.

In the figure: frame 1, cross beam 11, vertical beam 12, tensioning roller group 13, sensor device 2, cross bar 21, limit roller 22, radio frequency sensor 23, guide roller 3, center rod 31, sleeve 32, fixing hole 33, limit nut 34, screw 35, bevel gear group 36, bending piece 37, positioning nut 38, handle 39, printing roller group 4, ink cartridge 41, ink roller 42, ink transfer roller 43, plate roller 44, pressure roller 45, traction roller 5, traction pressure roller 51, platform 6, first guide rail 61, workbench 7, plate roller bracket 71, second guide rail 72, ink cartridge rack 73, telescopic cylinder 74, induction iron block 75, proximity sensor 76, displacement monitoring device 8, drying device 9, material 10.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

A non-woven bag back printing device, comprising a frame 1, the frame is an inverted "L" shape, including a crossbeam 11 and a vertical beam 12, the crossbeam 11 is provided with a tensioning roller group 13, the vertical beam is provided with a sensor device 2, a guide roller 3, a printing roller group 4 and a traction roller 5 in sequence along the feeding direction, the sensor device 2 comprises a cross bar 21 that can move up and down along the vertical beam 12, a limit roller 22 is provided at the rear side of the cross bar 21, and a radio frequency sensor 23 is provided on the cross bar 21, and the radio frequency sensor 23 can move laterally along the cross bar 21 The guide roller 3 is arranged below the sensor device 2, and at least one printing roller group 4 is arranged below the guide roller 3. The printing roller group 4 includes an ink cartridge 41, and an ink roller 42 is arranged in the ink cartridge 41. An ink transfer roller 43 is arranged on the inner side of the ink roller 42, and a plate roller 44 is arranged on the inner side of the ink transfer roller 43. A pressure roller 45 is arranged on the inner side of the plate roller 44, and the material passes between the plate roller 44 and the pressure roller 45. A traction roller 5 is arranged obliquely above the printing roller group 3, and a traction pressure roller 51 is arranged on the inner side of the traction roller 5.

Furthermore, the vertical beam 12 is provided with a platform 6 extending outward, the platform 6 is provided with a first guide rail 61, the first guide rail 61 is provided with a workbench 7, the inner side of the workbench 7 is provided with a plate roller holder 71, the plate roller holder 71 is provided with a plate roller 44, the outer side of the workbench 7 is provided with a second guide rail 72, the second guide rail 72 is provided with an ink cartridge rack 73, the ink cartridge rack 73 is provided with an ink cartridge 41, an ink roller 42 and an ink transfer roller 43, the ink cartridge 41 is fixedly connected to the ink cartridge rack 73, the ink roller 42 is arranged in the ink cartridge 41 and connected to the ink cartridge rack 73 through a bearing, and the ink transfer roller 43 is arranged on one side of the ink roller 42 and connected to the ink cartridge rack 73 through a bearing.

Furthermore, a telescopic cylinder 74 is provided at the upper end of the plate roller bracket 71 , a sensing iron block 75 is provided at the outer end of the shaft of the plate roller 44 , and a proximity sensor 76 corresponding to the sensing iron block 75 is provided on the plate roller bracket 71 .

Furthermore, a displacement monitoring device 8 is provided at the discharge end of the traction roller 5, and the displacement monitoring device includes a bracket, in which an upper roller group and a lower roller group are provided. The lower roller group is hinged to the bracket and connected to a displacement sensor, and one end of the displacement sensor is hinged to the bracket and the other end is hinged to the lower roller group.

Furthermore, a drying device 9 is provided between the printing roller group 4 and the traction roller, and the drying device 9 includes a drying box, in which a plurality of groups of resistance wires are provided, and a hair dryer is provided on one side of the drying box, and the fan is connected to the drying box via an air duct, and the air outlet of the drying box faces the direction of the material.

Furthermore, a center rod 31 is provided in the guide roller 3, and a shaft sleeve 32 is provided between the center rod 31 and the guide roller 3. The guide roller 3, the center rod 31 and the shaft sleeve 32 can move relative to each other. A fixing hole 33 is provided on the shaft sleeve 32, and the shaft sleeve 32 and the center rod 31 can be fixed by a limit nut 34. Screws 35 are provided at both ends of the center rod 31, and the cross bar 21 can move up and down along the screws 35. The guide roller 3 and the screw 35 are connected by a bevel gear set 36 at a 90° angle. A bending piece 37 that can slide left and right along the cross bar 21 is provided on the cross bar, and the bending piece 37 is connected to the cross bar 21 through a positioning nut 38. The bending piece 37 is provided with a radio frequency sensor 23. The center rod 31 is connected to the frame 1 through a bearing, and a handle 39 is provided at one end of the center rod 31.

Furthermore, the tensioning roller set 13 is three sets of rollers arranged at the upper end of the frame.

The ink delivery roller 43, plate roller 44 and traction roller 5 are all controlled by motors, and their connection methods are conventional technical means for those skilled in the art. The first guide rail 62 and the second guide rail 72 are both screw structures, and their movement methods and connection methods are conventional technical means for those skilled in the art, so they will not be described in detail.

Before use, the motors controlling the ink transfer roller 43 and the plate roller 44 are turned on, and the ink transfer roller 43 and the plate roller 44 are adjusted.

The ink transfer roller 43 is separated from the plate roller 44, the plate roller 44 slowly idles, and the telescopic cylinder 74 rises synchronously. The number of rotations can be set and monitored by the proximity sensor 46. The plate roller 44 rotates until there is no obvious ink on the edge of the plate roller 44.

The telescopic cylinder 74 descends, and the second guide rail 72 is slowly tightened. The adjusting handle of the second guide rail 72 is tightened to make the ink delivery roller 43 close to the plate roller 44 until the plate is colored. Be careful to prevent the plate roller 44 from being squeezed and damaged.

After the machine is turned on, the material 10 passes through the tension roller group 13, the sensor device 2, the guide roller 3, the printing roller group 4 and the traction roller 5 in sequence as shown in Figure 1. During production, the machine is first tested with a defective bag and adjusted according to the printing effect until the best effect is achieved.

Claims (4)

1. The utility model provides a non-woven bag back printing device, includes the frame, the frame is the "L" shape of inversion, including crossbeam and vertical beam, be equipped with tensioning roller set on the crossbeam, be equipped with sensing device, guide roll, printing roller set and pull roll on the vertical beam along the feed direction in proper order, sensing device includes the horizontal pole that can follow vertical beam and reciprocate, the horizontal pole rear side is equipped with the spacing roller, be equipped with radio frequency sensor on the horizontal pole, radio frequency sensor can follow horizontal pole lateral movement, the guide roll sets up in sensing device's below, the guide roll below is equipped with at least one group of printing roller set, the printing roller set includes the ink horn, be equipped with the ink roller in the ink horn, the inboard of ink roller is equipped with the ink roller of passing, the ink roller inboard is equipped with version roller, the inboard of version roller is equipped with the compression roller, wait to print the material by between version roller and the compression roller, printing roller set top is equipped with the pull roll to one side, the pull roll inboard is equipped with the pull roll; the vertical beam is provided with an outwards extending platform, a first guide rail is arranged on the platform, a workbench is arranged on the first guide rail, a plate roller support is arranged on the inner side of the workbench, a plate roller is arranged on the plate roller support, a second guide rail is arranged on the outer side of the workbench, an ink box support is arranged on the second guide rail, an ink box, an ink roller and an ink delivery roller are arranged on the ink box support, the ink box is fixedly connected with an ink box frame, the ink roller is arranged in the ink box and is connected with the ink box frame through a bearing, and the ink delivery roller is arranged on one side of the ink roller and is connected with the ink box frame through a bearing;

The upper end of the plate roller support is provided with a telescopic cylinder, the outer end of the shaft of the plate roller is provided with an induction iron block, and the plate roller support is provided with a proximity sensor corresponding to the induction iron block; the guide roller is internally provided with a center rod, a shaft sleeve is arranged between the center rod and the guide roller, the center rod and the shaft sleeve can move mutually, a fixing hole is formed in the shaft sleeve, the shaft sleeve and the center rod are fixed through a limiting nut, two ends of the center rod are provided with lead screws, the cross bars can move up and down along the lead screws, the guide roller and the lead screws are connected through bevel gear groups which are 90 degrees, bending pieces capable of sliding left and right along the cross bars are arranged on the cross bars, the bending pieces are connected with the cross bars through the positioning nut, the bending pieces are provided with radio frequency sensors, the center rod is connected with a frame through bearings, and one end of each center rod is provided with a handle.

2. The non-woven fabric bag back printing device according to claim 1, wherein the discharge end of the traction roller is provided with a displacement monitoring device, the displacement monitoring device comprises a support, an upper roller set and a lower roller set are arranged in the support, the lower roller set is hinged with the support and is connected with a displacement sensor, one end of the displacement sensor is hinged with the support, and the other end of the displacement sensor is hinged with the lower roller set.

3. The non-woven fabric bag back printing device according to claim 1, wherein a drying device is arranged between the printing roller set and the traction roller, the drying device comprises a drying box, a plurality of groups of resistance wires are arranged in the drying box, a blower is arranged on one side of the drying box and connected with the drying box through an air guide pipe, and an air outlet of the drying box faces to the direction of materials.

4. The nonwoven fabric bag back printing device according to claim 1, wherein the tensioning roller set is three sets of rollers arranged at the upper end of the frame.