Position correcting and deviation rectifying device for printing of square-bottom valve bag

Abstract

The invention relates to the technical field of square-bottom valve bag printing, in particular to a square-bottom valve bag printing position correcting and deviation rectifying device which comprises a machining shell, and a positioning and deviation rectifying mechanism used for supporting and limiting square-bottom valve bags of different models is arranged in the machining shell. A waste gas purifying mechanism used for absorbing printing ink printing waste gas is arranged on the side face of the machining shell, a printing auxiliary mechanism used for removing dust on the surface of the pocket body is arranged at the upper end of the machining shell, and the positioning deviation correcting mechanism comprises a lifting column movably installed in the machining shell. According to the pocket printing device, by arranging the positioning deviation correcting mechanism and utilizing mutual cooperation between a sliding protruding block and a telescopic protruding block, before printing processing, the inner side of a pocket body can be supported and limited, wrinkles or position deviation of the pocket body in the printing process is prevented, the front side and the rear side of the pocket body can be separated, and the printing quality is improved. And ink on one side is prevented from contaminating the other side in the printing process, and the printing quality can be effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of square bottom valve bag printing, and in particular to a square bottom valve bag printing position correction device. Background Art

[0002] The square bottom valve bag is a small bulk packaging container that is convenient, neat and well sealed. It is one of the most popular packaging materials in the world, especially suitable for export packaging. During production and processing, in order to mark and indicate relevant information such as the model, people usually use a printing machine to print on both sides of the bag.

[0003] When the printing machine in the prior art is printing on a square bottom valve bag, the square bottom valve bag is usually placed flat under the printing machine. After printing on one side is completed, the staff needs to turn the bag over before printing on the other side. The square bottom valve bag cannot be automatically turned over and corrected, which not only has low efficiency, but also the ink can easily stain the other side when printing on one side, resulting in low printing quality. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a square bottom valve bag printing alignment and deviation correction device, which solves the technical problems in the prior art that the printing press cannot automatically turn over and correct the square bottom valve bag, resulting in low printing efficiency and printing quality. The device has the advantage of being able to automatically turn over and align the square bottom valve bag, thereby effectively improving printing efficiency and quality.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a square bottom valve pocket printing positioning and correction device, comprising a processing shell, a pocket body is placed inside the processing shell, a positioning and correction mechanism for printing processing is arranged inside the processing shell, a waste gas purification mechanism for absorbing harmful gases to avoid environmental pollution is arranged on the side of the processing shell, a printing auxiliary mechanism for removing dust from the surface of the pocket body is arranged on the upper end of the processing shell, after the staff puts the pocket body into the processing shell, the positioning and correction mechanism will limit and print the pocket body, and during the printing process, the waste gas purification mechanism will extract and purify the gas inside the processing shell, the positioning and correction mechanism includes a lifting column movably installed inside the processing shell, a mounting square tube is fixedly installed on the upper end of the lifting column, a first push rod for driving the sliding protrusion to move horizontally is arranged inside the mounting square tube, and when the staff puts the pocket body on the outside of the vertical cylinder, the two sliding protrusions It will move to both sides respectively under the action of the first push rod, and sliding protrusions are symmetrically arranged on the installation square tube. A second push rod is arranged inside the sliding protrusion to drive the telescopic protrusion to move. When the sliding protrusion moves to both sides, the two telescopic protrusions will move under the action of the second push rod, so that the pocket body is opened, and a telescopic protrusion is movably installed on the outer side of the sliding protrusion, and a vertical cylinder is fixedly installed on the telescopic protrusion. A drying fan is fixedly installed on one side of the processing shell, and an air intake circular hole is opened on the inner side wall of the processing shell, and the air intake circular hole is connected to the output end of the drying fan. When the drying fan is powered on, hot air will be blown into the interior of the processing shell through multiple air intake circular holes. A pigment ink cartridge is detachably installed on the other side of the processing shell, and a printing component is arranged on the inner side wall of the processing shell. After the staff puts the square bottom valve bag into the interior of the processing shell, first, the vertical cylinder will support and straighten the pocket, and then the printing component will automatically print the pocket.

[0006] Preferably, the interior of the vertical cylinder is slidably connected with a telescopic circular tube, the lower end of the telescopic circular tube is fixedly sleeved with a sealing rubber ring, and an inflation component is provided inside the telescopic protrusion. When the inflation component inflates the interior of the vertical cylinder, the telescopic circular tube will extend vertically upward, and the telescopic circular tube will contact the bottom of the square bottom valve bag, so that the device can be applied to square bottom valve bags of various sizes.

[0007] Preferably, an elastic airbag is fixedly installed inside the telescopic circular tube, a gas pressure valve is provided at the lower end of the telescopic circular tube, and a plurality of groups of telescopic bosses are arranged at equal intervals on the outside of the telescopic circular tube. When the elastic airbag is inflated, multiple telescopic bosses will extend outward at the same time. After the telescopic bosses extend outward, they will be flush with the outer edge of the vertical cylinder.

[0008] Preferably, a return spring is provided on the outer sleeve of the telescopic boss, and an exhaust port is provided at the top of the telescopic tube. After the staff opens the exhaust port, the gas inside the elastic airbag will be discharged outward through the exhaust port, and then the telescopic boss will shrink to the inside of the telescopic tube under the action of the return spring.

[0009] Preferably, a driving motor for driving the lifting column to rotate is fixedly mounted on the lower end of the processing shell, and when the lifting column rotates under the action of the driving motor, the pocket body will be turned over.

[0010] Preferably, the exhaust gas purification mechanism includes a fixed bracket fixedly mounted on the side of the processing shell, a suction air pump is arranged on the fixed bracket, the air inlet end of the suction air pump is connected with an air inlet circular pipe, a purification shell is arranged at the air outlet end of the suction air pump, an exhaust circular hole is opened on the outside of the purification shell, activated carbon is placed inside the purification shell, and after the exhaust gas inside the processing shell enters the interior of the purification shell, the activated carbon will adsorb and purify the exhaust gas.

[0011] Preferably, the air intake pipe is connected to the interior of the processing shell, and when the suction air pump is powered on and operated, the exhaust gas inside the processing shell will be extracted.

[0012] Preferably, the printing auxiliary mechanism includes a material discharge square trough opened at the upper end of the processing shell, a fixed square tube is provided at the upper end of the material discharge square trough, a cleaning component is provided on the inner wall of the fixed square tube, the cleaning component includes a cleaning sponge detachably mounted on the inner wall of the fixed square tube, a water storage cavity is opened inside the side wall of the fixed square tube, and the water inside the water storage cavity can keep the cleaning sponge in a moist state.

[0013] By means of the above technical solution, the present invention provides a square bottom valve bag printing alignment and correction device, which has at least the following beneficial effects:

[0014] 1. The present invention sets a positioning and correcting mechanism and utilizes the mutual cooperation between the sliding protrusion and the telescopic protrusion. Before printing, it can support and limit the inner side of the pocket body to prevent wrinkles or position deviation of the pocket body during printing, and separate the front and back sides of the pocket body to prevent the ink on one side from being stained to the other side during printing, thereby effectively ensuring the printing quality.

[0015] 2. The present invention provides a positioning and deviation correction mechanism and utilizes the cooperation between the telescopic circular tube and the telescopic convex column to provide limited support for square bottom valve bags of various depths. It has a wide range of applications. Moreover, the support width of the telescopic circular tube after extending upward is the same as that of the vertical cylinder, thereby ensuring that the upper and lower widths of the square bottom valve bag after being propped up are consistent, which can also improve the printing quality.

[0016] 3. The present invention sets a positioning and correcting mechanism and utilizes the cooperation between the lifting column and the driving motor to automatically turn over the pocket body during the printing process, thereby quickly completing the double-sided printing process without the need for manual turning by staff, which can effectively improve the efficiency of the printing process and also effectively prevent the printed pattern from becoming blurred when turning over.

[0017] 4. The present invention sets a positioning and deviation correction mechanism and utilizes the cooperation between the drying fan and the air inlet hole to automatically heat and dry the pocket body after printing, so that the ink on the surface can be quickly solidified, which can effectively prevent the printed pattern from becoming blurred during the unloading process.

[0018] 5. The present invention provides an exhaust gas purification mechanism and utilizes the cooperation between the suction air pump and the purification shell to automatically purify the exhaust gas generated during the printing process, preventing the exhaust gas from being directly discharged and causing pollution to the surrounding environment. The environmental protection performance of the device can be effectively improved and the device is easy to use.

[0019] 6. The present invention sets up a printing auxiliary mechanism and utilizes the mutual cooperation between the fixed square tube and the cleaning component to automatically wipe and clean the surface of the pocket body during the discharge process to remove dust adhering to the surface of the pocket body, thereby improving the quality of printing processing. Moreover, the water in the water storage cavity can automatically soak the cleaning sponge without manual operation by the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the printing auxiliary mechanism in the present invention;

[0023] Figure 3 It is a schematic diagram of the interior of the processing shell in the present invention;

[0024] Figure 4 It is a structural schematic diagram of the positioning and correcting mechanism in the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the vertical cylinder in the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the exhaust gas purification mechanism in the present invention;

[0027] Figure 7 It is a structural schematic diagram of the purification shell in the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the vertical cylinder in the present invention.

[0029] In the figure: 1. Processing shell; 2. Pocket body; 3. Positioning and correcting mechanism; 301. Lifting column; 302. Installing square tube; 303. Sliding protrusion; 304. Telescopic protrusion; 305. Vertical cylinder; 306. Drying fan; 307. Air inlet hole; 308. Pigment ink cartridge; 309. Printing component; 310. Driving motor; 311. Telescopic tube; 312. Sealing rubber ring; 313. Elastic airbag; 314. Gas pressure valve; 315. Telescopic protrusion; 316. Reset spring; 317. Inflating component; 4. Exhaust gas purification mechanism; 401. Fixed bracket; 402. Suction air pump; 403. Air inlet tube; 404. Purification shell; 405. Exhaust hole; 406. Activated carbon; 5. Printing auxiliary mechanism; 501. Discharge square trough; 502. Fixed square tube; 503. Cleaning component. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] When the printing machine in the prior art is printing on a square bottom valve bag, the square bottom valve bag is usually placed flat under the printing machine. After printing on one side, the staff needs to turn the bag over before printing on the other side. The square bottom valve bag cannot be automatically turned over and corrected. Not only is the efficiency low, but the ink is easily contaminated to the other side when printing on one side, resulting in low printing quality. In order to solve this technical defect in the prior art, Figure 1-Figure 5 ,as well as Figure 8As shown, the present embodiment proposes a square bottom valve pocket printing positioning and correction device, which can automatically support and limit the inner side of the pocket body 2 before printing, so as to prevent the pocket body 2 from wrinkling or position displacement during printing. The pocket body 2 is placed inside the processing shell 1 of the device, and a positioning and correction mechanism 3 for printing is provided inside the processing shell 1. An exhaust gas purification mechanism 4 for absorbing harmful gases to avoid environmental pollution is provided on the side of the processing shell 1, and a printing auxiliary mechanism 5 for removing dust on the surface of the pocket body 2 is provided on the upper end of the processing shell 1. After the staff puts the pocket body 2 into the processing shell 1, the positioning and correction mechanism 3 will limit and print the pocket body 2. During the printing process, the exhaust gas purification mechanism 4 will extract and purify the gas inside the processing shell 1.

[0033] In order to be able to automatically turn over the pocket body 2 during the printing process, the present embodiment is provided with a positioning and correcting mechanism 3. Specifically, the positioning and correcting mechanism 3 includes a lifting column 301 movably installed inside the processing shell 1, and a mounting square tube 302 is fixedly installed on the upper end of the lifting column 301. The mounting square tube 302 is symmetrically provided with sliding protrusions 303. The interior of the mounting square tube 302 is provided with a first push rod for driving the sliding protrusion 303 to move horizontally. When the staff puts the pocket body 2 on the outside of the vertical cylinder 305, the two sliding protrusions 303 will move to both sides respectively under the action of the first push rod, and a telescopic protrusion 304 is movably installed on the outer side of the sliding protrusion 303. The interior of the sliding protrusion 303 is provided with a push rod for driving the telescopic protrusion 304 moves the second push rod, and while the sliding protrusion 303 moves to both sides, the two telescopic protrusions 304 will move under the action of the second push rod, so that the pocket body 2 is opened, and a vertical cylinder 305 is fixedly installed on the telescopic protrusion 304, and a drying fan 306 is fixedly installed on one side of the processing shell 1, and an air intake circular hole 307 is opened on the inner side wall of the processing shell 1, and the air intake circular hole 307 is connected to the output end of the drying fan 306. When the drying fan 306 is powered on, hot air will be blown into the interior of the processing shell 1 through multiple air intake circular holes 307. A pigment ink cartridge 308 is detachably installed on the other side of the processing shell 1, and a printing component 309 is provided on the inner side wall of the processing shell 1. The staff puts the square bottom valve bag into the processing shell After the pocket is placed inside the body 1, first, the vertical cylinder 305 will support and straighten the pocket, and then the printing component 309 will automatically print the pocket. The lower end of the processing shell 1 is fixedly installed with a driving motor 310 for driving the lifting cylinder 301 to rotate. When the lifting cylinder 301 rotates under the action of the driving motor 310, the pocket body 2 will be turned over. The interior of the vertical cylinder 305 is slidably connected with a telescopic tube 311, and the lower end of the telescopic tube 311 is fixedly sleeved with a sealing rubber ring 312. An elastic airbag 313 is fixedly installed inside the telescopic tube 311, and a gas pressure valve 314 is provided at the lower end of the telescopic tube 311. A plurality of groups of telescopic protrusions 315 are evenly spaced on the outside of the telescopic tube 311, and the telescopic protrusions 316 are evenly spaced on the outside of the telescopic tube 311. 04 is provided with an inflatable component 317 inside. When the inflatable component 317 inflates the inside of the vertical cylinder 305, the telescopic tube 311 will extend vertically upward. Then, the telescopic tube 311 will contact the bottom of the square bottom valve bag, so that the device can be applied to square bottom valve bags of various sizes. When the elastic airbag 313 is inflated, multiple telescopic bosses 315 will extend outward at the same time. After the telescopic bosses 315 extend outward, they will be flush with the outer edge of the vertical cylinder 305. The outer sleeve of the telescopic boss 315 is provided with a reset spring 316. The top of the telescopic tube 311 is provided with an exhaust port. After the staff opens the exhaust port, the gas inside the elastic airbag 313 will be discharged outward through the exhaust port. Then,The telescopic protrusion 315 will shrink into the interior of the telescopic tube 311 under the action of the return spring 316.

[0034] In this embodiment, when the staff performs printing processing on the square bottom valve bag, first, the lifting column 301 will automatically extend upward, so that the four vertical cylinders 305 extend above the processing shell 1, and then the staff will put the bag body 2 on the outside of the vertical cylinder 305.

[0035] Next, the two sliding protrusions 303 will move to both sides respectively under the action of the first push rod, so as to support and limit the inner side of the pocket body 2, thereby preventing the pocket body 2 from affecting the printing quality due to wrinkles or position displacement during the printing process.

[0036] Moreover, while the sliding protrusion 303 moves, the two telescopic protrusions 304 will move to the front and rear sides respectively under the action of the second push rod, thereby expanding the front and rear sides of the square bottom valve bag, which can effectively prevent the ink from affecting the other side during single-side printing.

[0037] Next, the lifting body 301 will retract downward, allowing the pocket body 2 to enter the interior of the processing shell 1. Subsequently, the printing component 309 will automatically perform single-sided printing processing on the pocket body 2. After a preset time, the lifting column 301 will rotate one hundred and eighty degrees under the action of the driving motor 310, so that the other side of the pocket body 2 faces the printing component 309.

[0038] Subsequently, the printing assembly 309 will print the other side of the pocket body 2. At the same time, the drying fan 306 will blow hot air into the interior of the processing shell 1 through a plurality of air inlet holes 307, thereby heating and drying the side that has just been printed, so that the ink can be quickly solidified.

[0039] After the printing on the other side is completed, the drying fan 306 will dry the other side in the same way. Then, the lifting column 301 will transport the pocket body 2 after printing and curing to the outside of the processing shell 1.

[0040] Moreover, if Figure 8 As shown, when a square bottom valve bag with a larger depth needs to be printed, the inflation component 317 will automatically inflate the interior of the vertical cylinder 305, and then the telescopic tube 311 will extend upward under the push of the air, thereby changing the support height of the vertical cylinder 305, which is suitable for square bottom valve bags of various sizes.

[0041] In addition, when the telescopic circular tube 311 contacts the bottom of the square bottom valve bag, the gas pressure valve 314 will automatically open. Next, the air will enter the elastic airbag 313 through the gas pressure valve 314, thereby expanding the volume of the elastic airbag 313, and then causing the multiple groups of telescopic bosses 315 located outside the vertical cylinder 305 to extend outward. After the telescopic bosses 315 are extended, they will be aligned with the outer edge of the vertical cylinder 305, thereby ensuring that the upper and lower widths of the square bottom valve bag are consistent after being propped up.

[0042] The present embodiment sets a positioning and correcting mechanism 3, and utilizes the mutual cooperation between the sliding protrusion 303 and the telescopic protrusion 304. Before printing, the inner side of the pocket body 2 can be supported and limited to prevent the pocket body 2 from wrinkling or position deviation during printing, and the front and back sides of the pocket body 2 can be separated to prevent the ink on one side from being stained to the other side during printing, which can effectively ensure the printing quality; moreover, the present embodiment sets a positioning and correcting mechanism 3, and utilizes the mutual cooperation between the lifting column 301 and the driving motor 310, so that the pocket body 2 can be automatically turned over during printing, thereby quickly completing the double-sided printing process without the need for manual turning by the staff, which can effectively improve the efficiency of the printing process and can also effectively Prevent the printed pattern from becoming blurred when turning over; moreover, the present embodiment, by setting a positioning and correcting mechanism 3, utilizes the mutual cooperation between the drying fan 306 and the air inlet hole 307, and can automatically heat and dry the bag body 2 after printing, so that the ink on the surface can be quickly solidified, which can effectively prevent the printed pattern from becoming blurred during the unloading process; in addition, the present embodiment, by setting a positioning and correcting mechanism, utilizes the mutual cooperation between the telescopic tube 311 and the telescopic convex column 315, and can provide limited support for square bottom valve bags of various depths, and has a wide range of applications. Moreover, the support width of the telescopic tube 311 after extending upward is the same as that of the vertical cylinder 305, thereby ensuring that the upper and lower widths of the square bottom valve bag after being propped up are consistent, which can also improve the printing quality.

[0043] Embodiment 2

[0044] In order to automatically absorb and purify the toxic gas generated during the printing process, based on the first embodiment, Figure 1-Figure 4 ,as well as Figure 6As shown, the present embodiment is provided with an exhaust gas purification mechanism 4. Specifically, the exhaust gas purification mechanism 4 includes a fixed bracket 401 fixedly mounted on the side of the processing shell 1, and a suction air pump 402 is arranged on the fixed bracket 401. The air inlet end of the suction air pump 402 is connected with an air inlet circular pipe 403, and the air inlet circular pipe 403 is connected with the interior of the processing shell 1. When the suction air pump 402 is powered on and operated, the exhaust gas inside the processing shell 1 will be extracted, and a purification shell 404 is arranged at the air outlet end of the suction air pump 402. An exhaust circular hole 405 is opened on the outer side of the purification shell 404, and activated carbon 406 is placed inside the purification shell 404. After the exhaust gas inside the processing shell 1 enters the interior of the purification shell 404, the activated carbon 406 will adsorb and purify the exhaust gas.

[0045] According to the above content, it can be known that during the printing process, the suction pump 402 will automatically suck the exhaust gas inside the processing shell 1 into the interior of the purification shell 404. Next, the activated carbon 406 inside the processing shell 1 will adsorb and remove harmful components in the exhaust gas. Subsequently, the air after adsorption and filtration will be discharged outward through the exhaust circular hole 405.

[0046] This embodiment provides an exhaust gas purification mechanism 4, and utilizes the cooperation between the suction air pump 402 and the purification shell 404 to automatically purify the exhaust gas generated during the printing process, preventing the exhaust gas from being directly discharged and polluting the surrounding environment, thereby effectively improving the environmental performance of the device and being easy to use.

[0047] Embodiment 3

[0048] In order to improve the printing quality as much as possible, based on the above embodiment, Figure 1 , Figure 2 As shown, the present embodiment is provided with a printing auxiliary mechanism 5. Specifically, the printing auxiliary mechanism 5 includes a material discharge square groove 501 opened at the upper end of the processing shell 1, a fixed square tube 502 is provided at the upper end of the material discharge square groove 501, a cleaning component 503 is provided on the inner wall of the fixed square tube 502, and the cleaning component 503 includes a cleaning sponge detachably mounted on the inner wall of the fixed square tube 502, and a water storage cavity is opened inside the side wall of the fixed square tube 502, and the water inside the water storage cavity can keep the cleaning sponge in a wet state.

[0049] According to the above content, after the staff puts the pocket body 2 on the outside of the vertical cylinder 305, the lifting column 301 will shrink downward, so that the pocket body 2 moves downward synchronously.

[0050] When the pocket body 2 moves downward, the cleaning sponge in a wet state will come into contact with the pocket body 2 in an expanded and tightened state, thereby removing dust adhering to the surface of the pocket body 2, which can effectively ensure the quality of the printing operation.

[0051] This embodiment provides a printing auxiliary mechanism 5, and utilizes the cooperation between the fixed square tube 502 and the cleaning component 503, so that the surface of the pocket body 2 can be automatically wiped and cleaned during the discharge process to remove dust adhering to the surface of the pocket body 2, which can also improve the quality of printing processing. Moreover, the water in the water storage cavity can automatically soak the cleaning sponge, and no manual operation is required by the staff.

[0052] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square bottom valve bag printing alignment and correction device, comprising a processing shell (1), wherein a bag body (2) is placed inside the processing shell (1), characterized in that: The processing housing (1) is provided with a positioning and correcting mechanism (3) for supporting and limiting the positions of square bottom valve bags of different models, a waste gas purification mechanism (4) for absorbing waste gas from ink printing is provided on the side of the processing housing (1), and a printing auxiliary mechanism (5) for removing dust from the surface of the bag body (2) is provided at the upper end of the processing housing (1); The positioning and deviation correction mechanism (3) comprises a lifting column (301) movably mounted inside the processing housing (1); a mounting square tube (302) is fixedly mounted on the upper end of the lifting column (301); sliding protrusions (303) are symmetrically arranged on the mounting square tube (302); a first push rod for driving the sliding protrusion (303) to move horizontally is arranged inside the mounting square tube (302); a telescopic protrusion (304) is movably mounted on the outer side of the sliding protrusion (303); and a push rod for driving the sliding protrusion (303) to move horizontally is arranged inside the sliding protrusion (303). A second push rod is provided to move the telescopic protrusion (304); a vertical cylinder (305) is fixedly mounted on the telescopic protrusion (304); a drying fan (306) is fixedly mounted on one side of the processing shell (1); an air intake hole (307) is provided on the inner side wall of the processing shell (1); the air intake hole (307) is connected to the output end of the drying fan (306); a pigment ink cartridge (308) is detachably mounted on the other side of the processing shell (1); and a printing assembly (309) is provided on the inner side wall of the processing shell (1).

2. The square bottom valve bag printing alignment and correction device according to claim 1 is characterized by: The vertical cylinder (305) is slidably connected to a telescopic tube (311), a sealing rubber ring (312) is fixedly sleeved on the lower end of the telescopic tube (311), and an inflatable component (317) is arranged inside the telescopic protrusion (304).

3. The square bottom valve bag printing alignment and correction device according to claim 2 is characterized by: An elastic air bag (313) is fixedly installed inside the telescopic circular tube (311), a gas pressure valve (314) is arranged at the lower end of the telescopic circular tube (311), and a plurality of groups of telescopic convex columns (315) are arranged at equal intervals on the outside of the telescopic circular tube (311).

4. The square bottom valve bag printing alignment and correction device according to claim 3 is characterized by: The outer portion of the telescopic protruding column (315) is sleeved with a return spring (316), and the top end of the telescopic circular tube (311) is provided with an exhaust port.

5. The square bottom valve bag printing alignment and correction device according to claim 1 is characterized by: A driving motor (310) for driving the lifting column (301) to rotate is fixedly mounted on the lower end of the processing housing (1).

6. The square bottom valve bag printing alignment and correction device according to claim 1 is characterized by: The exhaust gas purification mechanism (4) comprises a fixed bracket (401) fixedly mounted on the side of the processing shell (1), a suction air pump (402) is arranged on the fixed bracket (401), an air inlet end of the suction air pump (402) is connected to an air inlet circular pipe (403), a purification shell (404) is arranged at the air outlet end of the suction air pump (402), an exhaust circular hole (405) is opened on the outer side of the purification shell (404), and activated carbon (406) is placed inside the purification shell (404).

7. The square bottom valve bag printing alignment and correction device according to claim 6 is characterized by: The air intake circular pipe (403) is connected to the interior of the processing shell (1).

8. The square bottom valve bag printing alignment and correction device according to claim 1 is characterized by: The printing auxiliary mechanism (5) comprises a material discharge square groove (501) opened at the upper end of the processing shell (1), a fixed square tube (502) is arranged at the upper end of the material discharge square groove (501), and a cleaning component (503) is arranged on the inner side wall of the fixed square tube (502).

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