Automatic processing production line of packaging bag printing machine
By designing the automatic processing production line of the packaging bag printing machine, wrinkle removal, drive, pressure and drying mechanisms are adopted, the printing irregularity caused by wrinkles during the packaging bag printing process is solved, and printing quality and efficiency are improved.
Patent Information
- Application Number
- CN202510889486.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2025-08-15
AI Technical Summary
During the printing process of existing packaging bags, the printing pattern is irregular due to surface wrinkles, which increases the defective rate.
An automated processing production line of packaging bag printing machine is designed, including wrinkle removal mechanism, drive mechanism, pressure box, drying mechanism and adjustment mechanism. The wrinkles are eliminated by flattening the plate, the printing pressure and drying speed are adjusted, and the static influence is eliminated.
Improve the printing quality of packaging bags, avoid damage, enhance printing and drying efficiency, and ensure uniform adhesion of the ink.
Smart Images
Figure CN120481441A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of packaging bag printing and processing, and in particular to an automated processing production line of a packaging bag printing machine. Background Art
[0002] Packaging bags refer to bags used to package various items, making it convenient to transport and store goods during the production and circulation process. They are widely used in daily life and industrial production. Some packaging bags usually have patterns printed on their surface to indicate their purpose or make them more beautiful.
[0003] At present, when packaging bags are printed, they are usually stretched and transported by conveyor rollers, and then continuously printed on the packaging bags using printing rollers. However, if there are wrinkles on the surface of the packaging bags before printing, some ink will not be able to be printed on the stacked areas of the wrinkles during roller printing, resulting in irregular printed patterns, which greatly increases the defective rate of packaging bag printing. Based on this, we propose an automated processing production line for packaging bag printing machines. Summary of the Invention
[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automated processing production line for a packaging bag printing machine.
[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An automated processing production line for a packaging bag printing machine comprises a frame, wherein a printing device is installed on a side wall of the frame; The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip.
[0006] Preferably, a driving mechanism is installed in the vertical box, and the driving mechanism includes a screw rotatably connected to the top of the vertical box, the side wall of the screw is threadedly connected to the slider, and the upper end of the screw passes through the upper end of the vertical box and is fixedly connected to the first gear.
[0007] Preferably, the driving mechanism also includes a box body fixedly connected to the upper end of the cross bar, the inner wall of the box body is sealed and slidably connected with a rectangular block, the side wall of the rectangular block is fixedly connected with a first rack, the other end of the first rack is set through the side wall of the box body, the first rack is meshed with the first gear, the sliding plug divides the interior of the vertical cylinder into two parts, a first cavity and a second cavity, and the first cavity is connected to the box body through a first connecting pipe.
[0008] Preferably, the lower end of the frame is fixedly connected to a pressure box, the inner wall of the pressure box is sealingly and slidingly connected to a top block, the upper end of the top block passes through the upper end of the frame, and the second cavity is connected to the pressure box through a second connecting pipe.
[0009] Preferably, a drying mechanism is installed on the frame, and the drying mechanism includes a drying rack fixedly connected to the upper end of the frame, an air inlet cavity is opened in the drying rack, a plurality of air jet holes are opened on the inner wall of the air inlet cavity, an air inlet pipe is fixedly connected to the inner wall of the air inlet cavity, and the other end of the air inlet pipe is fixedly connected to an external air pump.
[0010] Preferably, the drying mechanism also includes a first cross-arc plate fixedly connected to the inner wall of the air jet hole, the upper end of the first cross-arc plate is rotatably connected to a rotating shaft, the side wall of the rotating shaft is fixedly connected to a second cross-arc plate, the second cross-arc plate is fitted together with the first cross-arc plate, and the upper end of the rotating shaft passes through the upper end of the drying rack.
[0011] Preferably, an adjustment mechanism is installed on the frame, and the adjustment mechanism includes a slide cylinder fixedly connected to the upper end of the frame through a bracket, the inner wall of the slide cylinder is sealingly and slidingly connected to a slide plate, the side wall of the slide plate is fixedly connected to a second rack, the other end of the second rack is arranged through the side wall of the slide cylinder, and the second cavity is connected to the slide cylinder through a third connecting pipe.
[0012] Preferably, the adjustment mechanism further includes a sprocket fixedly connected to the upper end of the rotating shaft, the sprockets are linked by a chain, wherein a portion of the side wall of the rotating shaft is fixedly connected to a second gear, and the second rack is meshed with the second gear.
[0013] Preferably, an aluminum foil plate is fixedly embedded in the upper end of the frame, a grounding wire is fixedly connected to the lower end of the aluminum foil plate, and the other end of the grounding wire is grounded.
[0014] Preferably, the side walls of the frame are fixedly connected to four horizontal plates, wherein two of the horizontal plates on the same side are connected to conveyor rollers for common rotation, and one of the side walls of the horizontal plates is fixedly connected to a motor, and the output end of the motor passes through the side wall of the horizontal plate and is fixedly connected to the conveyor roller.
[0015] The present invention has the following beneficial effects: 1. By setting up a wrinkle removal mechanism, the wrinkles on the surface of the packaging bag can be eliminated by moving the flat plate, avoiding the accumulation of wrinkles on the packaging bag that causes the pattern to be unable to be printed completely, thereby improving the printing quality of the packaging bag; 2. By setting a driving mechanism, when printing on packaging bags of different thicknesses, the thinner the packaging bag, the more easily it is damaged. Therefore, the pressure applied to it during flattening needs to be smaller, thereby avoiding damage to the packaging bag. When the packaging bag passes under the flattening plate, if the thickness of the packaging bag is thinner, the height of the detection plate will be lower, and the position of the slider will be lower. More air in the first cavity will be squeezed into the box body through the first connecting pipe, pushing the rectangular block to move toward the middle of the mounting frame, thereby driving the first rack to move, driving the first gear to rotate, and then driving the lead screw to rotate, driving the slider to slide upward in the vertical box, thereby reducing the pre-compression amplitude of the first spring, and thus reducing the pressure applied by the flattening plate to flatten the packaging bag, thereby avoiding damage to the packaging bag. On the contrary, if the packaging bag is thicker, the position of the slider will be lower, and the pre-compression amplitude of the first spring will increase, thereby providing greater pressure for flattening, thereby improving the flattening effect. 3. By setting up the pressure box, top block and second connecting pipe, thicker packaging bags require more ink to improve the saturation during roller printing, and thicker packaging bags require greater printing pressure to ensure that the ink can be fully transferred to the material surface. Therefore, the thicker the packaging bag, the higher the height of the slide plug, and more air in the second cavity will enter the pressure box through the second connecting pipe, thereby increasing the pressure in the pressure box. In turn, the top block will apply greater pressure to the packaging bag, thereby increasing the printing pressure. Conversely, the thinner the packaging bag, the smaller the printing pressure provided. 4. By setting up a drying mechanism, the printed packaging bags will enter the drying rack, and the hot air can be pumped into the air inlet chamber through an external air pump. Then the hot air will be ejected through multiple air jet holes to dry the ink on the packaging bags, making it easier for the conveyor roller to rewind them. Since the overlap between the first cross-arc plate and the second cross-arc plate of the air jet hole decreases from left to right, it is equivalent to the aperture of the air jet hole decreasing from left to right. The larger the aperture of the air jet hole, the smaller the velocity of the ejected hot air. The fluidity of the ink just after printing is relatively large, so the packaging bags just entering the drying rack receive a relatively small drying air flow velocity, which can prevent a large hot air flow velocity from causing the ink to flow and thus damaging the pattern. As the drying progresses, the degree of ink solidification increases, so the hot air flow velocity increases later, which can enhance the drying efficiency. 5. By setting up an adjustment mechanism, since the amount of ink increases when printing on thicker packaging bags, more air in the second chamber will be pumped into the slide through the third connecting pipe, thereby pushing the slide plate to the left, driving the second rack to move, thereby driving the second gear to rotate, driving the rotating shaft to rotate, and then driving the sprocket to rotate. The sprockets are driven by a chain, so that all the rotating shafts rotate synchronously, thereby driving the second cross-arc plate to rotate a certain angle, thereby increasing the overlap between the first cross-arc plate and the second cross-arc plate, so that the air output of the air jet hole increases, which is convenient for improving the drying efficiency of the ink; 6. By setting up the aluminum foil plate and the grounding wire, the flat plate will generate friction with the surface of the packaging bag when leveling the packaging bag, causing static electricity on the packaging bag surface. Static electricity will affect the adhesion of subsequent printing ink. Therefore, when the packaging bag is leveled, it will come into contact with the aluminum foil plate. The static electricity on the packaging bag will be transferred to the aluminum foil plate and then transferred away through the grounding wire, thereby eliminating the static electricity on the surface of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an automated processing production line for a packaging bag printing machine proposed by the present invention; Figure 2 for Figure 1 A schematic side view of the mid-structure; Figure 3 for Figure 1 Schematic cross-sectional view of the structure; Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the middle mounting frame and vertical tube; Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the middle mounting frame and vertical box; Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure of the middle drying rack; Figure 7 for Figure 5 A schematic diagram of the structure enlargement at point A; Figure 8 for Figure 3 A magnified schematic diagram of the structure at point B in FIG. Figure 9 for Figure 6 Schematic diagram of the enlarged structure at point C in FIG.
[0017] In the figure: 1. frame; 2. printing device; 3. mounting frame; 4. electric push rod; 5. mounting block; 6. driving rod; 7. vertical box; 8. T-shaped block; 9. leveling plate; 10. cross bar; 11. connecting rod; 12. slider; 13. first spring; 14. vertical cylinder; 15. slide plug; 151. first chamber; 152. second chamber; 16. vertical rod; 17. detection plate; 18. second spring; 19. lead screw; 20. first gear; 201. first rack; 21. box; 22. rectangular block; 23. First connecting pipe; 24. Pressure box; 25. Top block; 26. Second connecting pipe; 27. Air inlet chamber; 28. Air jet hole; 29. First cross-arc plate; 30. Rotating shaft; 31. Second cross-arc plate; 32. Sprocket; 33. Chain; 34. Second gear; 35. Slide; 36. Slide plate; 37. Second rack; 38. Third connecting pipe; 39. Aluminum foil plate; 40. Grounding wire; 41. Horizontal plate; 42. Conveyor roller; 43. Air inlet pipe; 44. Motor; 45. Drying rack. DETAILED DESCRIPTION
[0018] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0019] Reference Figures 1-9 , an automated processing production line of a packaging bag printing machine, comprising a frame 1, a printing device 2 being installed on the side wall of the frame 1; The wrinkle removal mechanism includes a mounting frame 3 fixedly connected to the upper end of the frame 1, and an electric push rod 4 (such as Figure 5As shown), the movable end of the electric push rod 4 is fixedly connected to the mounting block 5, and the side wall of the mounting block 5 is symmetrically connected to two driving rods 6. The other ends of the two driving rods 6 are both rotatably connected to the vertical box 7. The inner wall of the vertical box 7 is slidably connected to a T-shaped block 8. The lower end of the T-shaped block 8 passes through the lower end of the vertical box 7 and is fixedly connected to the screed 9. The side wall of the vertical box 7 is fixedly connected to a cross bar 10. One end of the cross bar 10 is rotatably connected to a connecting rod 11. The other end of the connecting rod 11 is rotatably connected to the top of the mounting frame 3. The inner wall of the vertical box 7 is slidably connected to a T-shaped block 8. The lower end of the T-shaped block 8 passes through the lower end of the vertical box 7 and is fixedly connected to a screed 9. The side wall of the vertical box 7 is fixedly connected to a cross bar 10. One end of the cross bar 10 is rotatably connected to a connecting rod 11. The other end of the connecting rod 11 is rotatably connected to the top of the mounting frame 3. A slider 12 is slidably connected, and a first spring 13 is fixedly connected between the T-shaped block 8 and the slider 12. A vertical cylinder 14 is fixedly connected to the top of the mounting frame 3, and a sliding plug 15 is sealingly and slidably connected to the inner wall of the vertical cylinder 14. The lower end of the sliding plug 15 is fixedly connected to a vertical rod 16, and the lower end of the vertical rod 16 passes through the lower end of the vertical cylinder 14 and is fixedly connected to a detection plate 17. A second spring 18 is sleeved on the side wall of the vertical rod 16, and both ends of the second spring 18 are fixedly connected to the inner bottom of the vertical cylinder 14 and the lower end of the sliding plug 15 respectively.
[0020] Furthermore, the electric push rod 4 is driven to extend and retract repeatedly. When the electric push rod 4 is extended, it can drive the mounting block 5 to move downward, thereby driving the driving rod 6 to move downward, driving the vertical box 7 to move downward, and driving the cross bar 10 to move downward, and then the cross bar 10 will cause the connecting rod 11 to rotate to both sides, thereby driving the vertical box 7 to move synchronously away from each other on both sides, and then the vertical box 7 will drive the smoothing plate 9 to move downward and synchronously translate to both sides, and the smoothing plate 9 fits the surface of the packaging bag. When the smoothing plate 9 can no longer move downward, the vertical box 7 moves downward, which will cause the T-shaped block 8 to squeeze the first spring 13, and the first spring 13 will generate a reverse force, causing the smoothing plate 9 to squeeze the packaging bag, and the smoothing plate 9 translates synchronously to both sides, which can smooth the surface of the packaging bag, thereby eliminating wrinkles on the surface of the packaging bag, thereby improving the printing quality of the packaging bag.
[0021] A driving mechanism is installed in the vertical box 7, which includes a screw 19 rotatably connected to the top of the vertical box 7. The side wall of the screw 19 is threadedly connected to the slider 12. The upper end of the screw 19 passes through the upper end of the vertical box 7 and is fixedly connected to the first gear 20.
[0022] The driving mechanism also includes a box body 21 fixedly connected to the upper end of the cross bar 10, and a rectangular block 22 is sealed and slidably connected to the inner wall of the box body 21. The side wall of the rectangular block 22 is fixedly connected to the first rack 201, and the other end of the first rack 201 is set through the side wall of the box body 21. The first rack 201 is meshed with the first gear 20. The sliding plug 15 divides the interior of the vertical cylinder 14 into two parts: a first cavity 151 and a second cavity 152. The first cavity 151 is connected to the box body 21 through a first connecting pipe 23, and the first connecting pipe 23 is made of a hose.
[0023] Furthermore, when printing on packaging bags of different thicknesses, the thinner the packaging bag, the more easily it is damaged. Therefore, the smaller the pressure applied when leveling it, the less damage the packaging bag needs to be. When the packaging bag passes under the leveling plate 9, if the thickness of the packaging bag is thinner, the height of the detection plate 17 is lower, and the position of the slider 15 is lower. More air in the first chamber 151 will be squeezed into the box body 21 through the first connecting pipe 23, pushing the rectangular block 22 toward the middle of the mounting frame 3, thereby driving the first rack 201 to move, driving the first gear 20 to rotate, and then driving the lead screw 19 to rotate, driving the slider 12 to slide upward in the vertical box 7, and then the pre-compression amplitude of the first spring 13 will be reduced, and then the pressure applied by the leveling plate 9 to level the packaging bag will be smaller, thereby avoiding damage to the packaging bag. On the contrary, if the packaging bag is thicker, the position of the slider 12 will be lower, and then the pre-compression amplitude of the first spring 13 will be increased, thereby providing greater pressure for leveling, thereby improving the leveling effect.
[0024] The lower end of the frame 1 is fixedly connected to a pressure box 24, and the inner wall of the pressure box 24 is sealed and slidably connected to a top block 25. The upper end of the top block 25 passes through the upper end of the frame 1. The top block 25 has a certain elasticity. The second cavity 152 is connected to the pressure box 24 through a second connecting pipe 26.
[0025] Furthermore, for thicker packaging bags, more ink is needed to increase the fullness during roller printing, and thicker packaging bags require greater printing pressure to ensure that the ink can be fully transferred to the material surface. Therefore, when the packaging bag is thicker, the height of the slide plug 15 is higher, and more air in the second cavity 152 will enter the pressure box 24 through the second connecting pipe 26, thereby increasing the pressure in the pressure box 24, and then the top block 25 will apply greater pressure to the packaging bag, thereby increasing the printing pressure. On the contrary, the thinner the packaging bag, the smaller the printing pressure provided.
[0026] The drying mechanism is mounted on the frame 1 and includes a drying rack 45 fixedly connected to the upper end of the frame 1. The drying rack 45 has an air inlet cavity 27 (such as Figure 6 As shown), the inner wall of the air inlet cavity 27 is provided with a plurality of jet holes 28, and the plurality of jet holes 28 are arranged in a matrix. The inner wall of the air inlet cavity 27 is fixedly connected to an air inlet pipe 43, and the other end of the air inlet pipe 43 is fixedly connected to an external air pump.
[0027] The drying mechanism also includes a first cross-arc plate 29 fixedly connected to the inner wall of the air jet hole 28. The upper end of the first cross-arc plate 29 is rotatably connected to a rotating shaft 30. The side wall of the rotating shaft 30 is fixedly connected to a second cross-arc plate 31. The second cross-arc plate 31 is fitted together with the first cross-arc plate 29, and the upper end of the rotating shaft 30 passes through the upper end of the drying rack 45.
[0028] It should be noted that if Figure 6 As shown, the overlap between the first cross-arc plate 29 and the second cross-arc plate 31 in the air jet hole 28 decreases from left to right, so that the air jet speed of the air jet hole 28 increases from left to right.
[0029] Furthermore, the printed packaging bags will enter the drying rack 45, and the hot air will be pumped into the air inlet chamber 27 by an external air pump, and then the hot air will be ejected through the multiple air jet holes 28 to dry the ink on the packaging bags. Since the overlap between the first cross-arc plate 29 and the second cross-arc plate 31 inside the air jet hole 28 decreases from left to right (as shown in FIG. Figure 6 As shown in the figure, the aperture of the air jet hole 28 decreases from left to right. The larger the aperture of the air jet hole 28, the smaller the velocity of the hot air jet. The ink just after printing has greater fluidity. Therefore, the packaging bag just entering the drying rack 45 receives a smaller drying air velocity, which can prevent the ink from flowing due to a large hot air velocity, thereby damaging the pattern. As the drying progresses, the degree of solidification of the ink increases. Therefore, the hot air velocity increases later, which can enhance the drying efficiency.
[0030] The frame 1 is provided with an adjustment mechanism, which includes a slide 35 fixedly connected to the upper end of the frame 1 through a bracket, and a slide plate 36 (such as Figure 9 As shown), the side wall of the slide 36 is fixedly connected to the second rack 37, the other end of the second rack 37 passes through the side wall of the slide 35, and the second cavity 152 is connected to the slide 35 through the third connecting pipe 38.
[0031] The adjustment mechanism also includes a sprocket 32 fixedly connected to the upper end of the rotating shaft 30. The sprockets 32 are linked by a chain 33. A second gear 34 is fixedly connected to a part of the side wall of the rotating shaft 30, and a second rack 37 is meshed with the second gear 34.
[0032] Furthermore, since the amount of ink increases when printing on thicker packaging bags, more air in the second chamber 152 is pumped into the slide 35 through the third connecting pipe 38, thereby pushing the slide 36 to move leftward (as shown in FIG. Figure 9 As shown in FIG, the second rack 37 is driven to move, thereby driving the second gear 34 to rotate, driving the rotating shaft 30 to rotate, and then driving the sprocket 32 to rotate. The sprockets 32 are driven by the chain 33, so that all the rotating shafts 30 rotate synchronously, thereby driving the second cross-arc plate 31 to rotate a certain angle, thereby increasing the overlap between the first cross-arc plate 29 and the second cross-arc plate 31, so that the air output of the air injection hole 28 is increased, which is convenient for improving the drying efficiency of the ink.
[0033] An aluminum foil plate 39 is fixedly embedded in the upper end of the frame 1 , and a grounding wire 40 is fixedly connected to the lower end of the aluminum foil plate 39 , and the other end of the grounding wire 40 is grounded.
[0034] Furthermore, when the leveling plate 9 is leveling the packaging bag, it will generate friction with the surface of the packaging bag, causing static electricity to be generated on the surface of the packaging bag. The static electricity will affect the adhesion of the subsequent printing ink. Therefore, when the packaging bag is leveled, it will come into contact with the aluminum foil plate 39. The static electricity on the packaging bag will be transferred to the aluminum foil plate 39 and then transferred away through the grounding wire 40, thereby eliminating the static electricity on the surface of the packaging bag.
[0035] Four horizontal plates 41 are fixedly connected to the side wall of the frame 1, and a conveying roller 42 is connected to the two horizontal plates 41 on the same side for common rotation. A motor 44 is fixedly connected to the side wall of one of the horizontal plates 41, and the output end of the motor 44 passes through the side wall of the horizontal plate 41 and is fixedly connected to the conveying roller 42.
[0036] In the present invention, the packaging bag will be wound around one of the conveying rollers 42, and then one end of the packaging bag will be pulled to be fixed to the surface of the conveying roller 42 at the other end, and then the driving motor 44 will rotate, which can drive the packaging bag to move horizontally. The packaging bag will pass through the detection plate 17, the leveling plate 9, the top block 25 and the printing roller of the printing device 2 in sequence. When printing, the electric push rod 4 is driven to extend and retract repeatedly. When the electric push rod 4 is extended, it can drive the mounting block 5 to move downward, and then drive the driving rod 6 to move downward, drive the vertical box 7 to move downward, drive the cross bar 10 to move downward, and then the cross bar 10 will The connecting rod 11 rotates to both sides, thereby driving the vertical box 7 to move synchronously to both sides away from each other, and then the vertical box 7 will drive the screed plate 9 to move downward and synchronously translate to both sides, and the screed plate 9 is in contact with the surface of the packaging bag. When the screed plate 9 can no longer move downward, the vertical box 7 moves downward, causing the T-shaped block 8 to squeeze the first spring 13, and the first spring 13 will generate a reverse force, causing the screed plate 9 to squeeze the packaging bag, and the screed plate 9 translates synchronously to both sides, which can smooth the surface of the packaging bag, thereby eliminating wrinkles on the surface of the packaging bag, thereby improving the printing quality of the packaging bag.
[0037] When the leveling plate 9 is leveling the packaging bag, it will generate friction with the surface of the packaging bag, causing static electricity on the surface of the packaging bag. The static electricity will affect the adhesion of the subsequent printing ink. Therefore, when the packaging bag is leveled, it will come into contact with the aluminum foil plate 39. The static electricity on the packaging bag will be transferred to the aluminum foil plate 39 and then transferred away through the grounding wire 40, thereby eliminating the static electricity on the surface of the packaging bag.
[0038] When the packaging bag is translated between the printing roller and the top block 25 of the printing device 2, the printing roller will print the packaging bag, and the printed packaging bag will enter the drying rack 45. The hot air can be pumped into the air inlet cavity 27 by an external air pump, and then the hot air will be ejected through the multiple air jet holes 28 to dry the ink on the packaging bag, so as to facilitate the conveying roller 42 to rewind it. Since the overlap between the first cross-arc plate 29 and the second cross-arc plate 31 inside the air jet hole 28 decreases from left to right (as shown in FIG. Figure 6 As shown in the figure, the aperture of the air jet hole 28 decreases from left to right. The larger the aperture of the air jet hole 28, the smaller the velocity of the hot air jet. The ink just after printing has greater fluidity. Therefore, the packaging bag just entering the drying rack 45 receives a smaller drying air velocity, which can prevent the ink from flowing due to a large hot air velocity, thereby damaging the pattern. As the drying progresses, the degree of solidification of the ink increases. Therefore, the hot air velocity increases later, which can enhance the drying efficiency.
[0039] When printing on packaging bags of different thicknesses, the thinner the packaging bag, the more easily it is damaged. Therefore, the smaller the pressure applied when leveling it, the less damage the packaging bag needs to be. When the packaging bag passes under the leveling plate 9, if the thickness of the packaging bag is thinner, the height of the detection plate 17 is lower, and the position of the slider 15 is lower. More air in the first chamber 151 will be squeezed into the box body 21 through the first connecting pipe 23, pushing the rectangular block 22 toward the middle of the mounting frame 3, thereby driving the first rack 201 to move, driving the first gear 20 to rotate, and then driving the lead screw 19 to rotate, driving the slider 12 to slide upward in the vertical box 7, and then the pre-compression amplitude of the first spring 13 will be reduced, and then the pressure applied by the leveling plate 9 to level the packaging bag will be smaller, thereby avoiding damage to the packaging bag. On the contrary, if the packaging bag is thicker, the position of the slider 12 will be lower, and the pre-compression amplitude of the first spring 13 will be increased, thereby providing greater pressure for leveling, thereby improving the leveling effect.
[0040] For thicker packaging bags, more ink is needed to increase the fullness during roller printing, and thicker packaging bags require greater printing pressure to ensure that the ink can be fully transferred to the material surface. Therefore, when the packaging bag is thicker, the height of the slide plug 15 is higher, and more air in the second cavity 152 will enter the pressure box 24 through the second connecting pipe 26, thereby increasing the pressure in the pressure box 24, and then the top block 25 will apply greater pressure to the packaging bag, thereby increasing the printing pressure. On the contrary, the thinner the packaging bag, the smaller the printing pressure provided.
[0041] In addition, since the amount of ink will increase when printing on thicker packaging bags, more air will be pumped into the slide cylinder 35 through the third connecting pipe 38 in the second chamber 152, thereby pushing the slide plate 36 to move leftward (as shown in FIG. Figure 9 As shown in FIG, the second rack 37 is driven to move, thereby driving the second gear 34 to rotate, driving the rotating shaft 30 to rotate, and then driving the sprocket 32 to rotate. The sprockets 32 are driven by the chain 33, so that all the rotating shafts 30 rotate synchronously, thereby driving the second cross-arc plate 31 to rotate a certain angle, thereby increasing the overlap between the first cross-arc plate 29 and the second cross-arc plate 31, so that the air output of the air injection hole 28 is increased, which is convenient for improving the drying efficiency of the ink.
[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. An automated production line for packaging bag printing machines, characterized in that: include: A frame (1), wherein a printing device (2) is mounted on a side wall of the frame (1); The wrinkle removal mechanism comprises a mounting frame (3) fixedly connected to the upper end of the frame (1), the upper end of the mounting frame (3) is fixedly connected to an electric push rod (4) through a bracket, the movable end of the electric push rod (4) is fixedly connected to a mounting block (5), the side wall of the mounting block (5) is symmetrically connected to two driving rods (6), the other ends of the two driving rods (6) are both rotatably connected to a vertical box (7), the inner wall of the vertical box (7) is slidably connected to a T-shaped block (8), the lower end of the T-shaped block (8) passes through the lower end of the vertical box (7) and is fixedly connected to a screed plate (9), the side wall of the vertical box (7) is fixedly connected to a cross bar (10), one end of the cross bar (10) is rotatably connected to a connecting rod (11), the connecting rod ( 11) The other end is rotatably connected to the top of the mounting frame (3), the inner wall of the vertical box (7) is slidably connected to a slider (12), a first spring (13) is fixedly connected between the T-shaped block (8) and the slider (12), the inner top of the mounting frame (3) is fixedly connected to a vertical cylinder (14), the inner wall of the vertical cylinder (14) is sealed and slidably connected to a sliding plug (15), the lower end of the sliding plug (15) is fixedly connected to a vertical rod (16), the lower end of the vertical rod (16) passes through the lower end of the vertical cylinder (14) and is fixedly connected to a detection plate (17), the side wall of the vertical rod (16) is sleeved with a second spring (18), the two ends of the second spring (18) are respectively fixedly connected to the inner bottom of the vertical cylinder (14) and the lower end of the sliding plug (15).
2. The automated processing production line of a packaging bag printing machine according to claim 1, characterized in that: in: A driving mechanism is installed in the vertical box (7), and the driving mechanism includes a screw (19) rotatably connected to the top of the vertical box (7), the side wall of the screw (19) is threadedly connected to the slider (12), and the upper end of the screw (19) passes through the upper end of the vertical box (7) and is fixedly connected to the first gear (20).
3. The automated processing production line of a packaging bag printing machine according to claim 2, characterized in that: in: The driving mechanism further comprises a box body (21) fixedly connected to the upper end of the crossbar (10); a rectangular block (22) is sealingly and slidably connected to the inner wall of the box body (21); a first rack (201) is fixedly connected to the side wall of the rectangular block (22); the other end of the first rack (201) passes through the side wall of the box body (21); the first rack (201) is meshedly connected to the first gear (20); the sliding plug (15) divides the interior of the vertical cylinder (14) into two parts, a first chamber (151) and a second chamber (152); the first chamber (151) is connected to the box body (21) through a first connecting pipe (23).
4. The automated processing production line of a packaging bag printing machine according to claim 3, characterized in that: in: The lower end of the frame (1) is fixedly connected to a pressure box (24), the inner wall of the pressure box (24) is sealed and slidably connected to a top block (25), the upper end of the top block (25) is arranged to pass through the upper end of the frame (1), and the second cavity (152) is connected to the pressure box (24) through a second connecting pipe (26).
5. The automated production line for packaging bag printing machines according to claim 3, characterized in that: in: A drying mechanism is installed on the frame (1), and the drying mechanism includes a drying rack (45) fixedly connected to the upper end of the frame (1); an air intake cavity (27) is provided in the drying rack (45); a plurality of air injection holes (28) are provided on the inner wall of the air intake cavity (27); an air intake pipe (43) is fixedly connected to the inner wall of the air intake cavity (27); and the other end of the air intake pipe (43) is fixedly connected to an external air pump.
6. The automated production line for packaging bag printing machines according to claim 5, characterized in that: in: The drying mechanism further comprises a first cross-arc plate (29) fixedly connected to the inner wall of the air injection hole (28); the upper end of the first cross-arc plate (29) is rotatably connected to a rotating shaft (30); a second cross-arc plate (31) is fixedly connected to the side wall of the rotating shaft (30); the second cross-arc plate (31) is fitted with the first cross-arc plate (29); and the upper end of the rotating shaft (30) passes through the upper end of the drying rack (45).
7. The automated production line for packaging bag printing machines according to claim 6, characterized in that: in: An adjusting mechanism is installed on the frame (1), and the adjusting mechanism includes a slide (35) fixedly connected to the upper end of the frame (1) through a bracket, the inner wall of the slide (35) is sealed and slidably connected to a slide plate (36), the side wall of the slide plate (36) is fixedly connected to a second rack (37), the other end of the second rack (37) passes through the side wall of the slide (35), and the second cavity (152) is connected to the slide (35) through a third connecting pipe (38).
8. The automated production line for packaging bag printing according to claim 7, characterized in that: in: The adjustment mechanism further includes a sprocket (32) fixedly connected to the upper end of the rotating shaft (30), the sprockets (32) being linked by a chain (33), wherein a second gear (34) is fixedly connected to a side wall of a portion of the rotating shaft (30), and the second rack (37) is meshedly connected to the second gear (34).
9. The automated production line for packaging bag printing machines according to claim 1, characterized in that: in: An aluminum foil plate (39) is fixedly embedded at the upper end of the frame (1), a grounding wire (40) is fixedly connected to the lower end of the aluminum foil plate (39), and the other end of the grounding wire (40) is grounded.
10. The automated processing production line of packaging bag printing machine according to claim 1, characterized in that: in: Four transverse plates (41) are fixedly connected to the side wall of the frame (1), wherein two transverse plates (41) located on the same side are connected to a conveying roller (42) for common rotation, wherein a motor (44) is fixedly connected to the side wall of one of the transverse plates (41), and an output end of the motor (44) passes through the side wall of the transverse plate (41) and is fixedly connected to the conveying roller (42).