Packaging bag code spraying device

By setting negative pressure holes and air ducts on the inkjet printing platform to create negative pressure, combined with a drying device, the problem of undulation and wrinkles on packaging bags during the inkjet printing process is solved, achieving clear and efficient inkjet printing results.

CN224028663UActive Publication Date: 2026-03-24ZHUHAI INSPIRATION PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Packaging bags are prone to undulations, bulges, and wrinkles during the roll-to-roll coding process, which affects the coding effect and clarity.

Method used

The inkjet printing platform is equipped with negative pressure holes and a fan tube, which, together with a motor-driven fan blade, create negative pressure to tighten the packaging bag. The ink is then quickly dried by a drying device to avoid undulations and wrinkles, ensuring clear printing.

Benefits of technology

It effectively avoids undulations and wrinkles on packaging bags during the coding process, improves coding effect and clarity, and increases coding efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224028663U_ABST
Patent Text Reader

Abstract

The utility model relates to a packaging bag code spraying device which comprises a bearing plate, one end of the bearing plate is provided with a tensioning structure, a code spraying machine is arranged above the bearing plate on one side of the tensioning structure, the bearing plate below the code spraying machine is fixedly connected with a hollow code spraying table, and the code spraying table is provided with a code spraying head. Two negative pressure holes are formed in the upper surface of the code spraying table, the distance between the two negative pressure holes is smaller than the width of a packaging bag, when the packaging bag moves above the code spraying table for code spraying, a first motor installed in an air duct can be started, fan blades are driven by the first motor to rotate at a high speed in the air duct, and air in the code spraying table is exhausted through an exhaust pipe; negative pressure is formed in the code spraying table, under the action of the negative pressure, the negative pressure holes can adsorb packaging bags covering the negative pressure holes to move towards the interiors of the negative pressure holes, the packaging bags are tensioned towards the two sides, and the problem that the packaging bags fluctuate, swell, fold and the like in the code spraying process are avoided as much as possible, and the code spraying effect is affected is solved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of code spraying equipment, and particularly relates to a packaging bag code spraying device. BACKGROUND

[0002] The packaging bag is a bag for packaging various articles, usually made of paper, plastic, cloth or other synthetic materials, widely used in daily life, commercial activities and product packaging in industrial production, effectively protecting the product from pollution, damage or loss, and facilitating carrying and storage.

[0003] In order to be beautiful or convenient for subsequent identification and tracking, the packaging bag generally needs to be sprayed on the surface. During the code spraying process of the packaging bag in a roll, the packaging bag is prone to fluctuation, bulging, wrinkling and other phenomena, which affects the code spraying effect and causes the code spraying information to be not clear enough. UTILITY MODEL CONTENT

[0004] The utility model discloses a packaging bag code spraying device with simple structure and reasonable design.

[0005] The utility model discloses a packaging bag code spraying device with simple structure and reasonable design.

[0006] A packaging bag code spraying device, comprising a bearing plate, wherein one end of the bearing plate is provided with a tensioning structure, a code spraying machine is arranged above the bearing plate on the side of the tensioning structure, a code spraying table with an internal cavity is fixedly connected to the bearing plate below the code spraying machine, negative pressure holes are formed in the top walls of the two ends of the code spraying table and are in communication with the internal cavity of the code spraying table, an air pressure balance hole is formed in one side of the code spraying table, a wind cylinder with a top end in communication with the internal cavity of the code spraying table is fixedly and penetratingly arranged on the bottom wall of the bearing plate, a first motor is arranged in the internal cavity of the wind cylinder, the first motor is fixed to the inner wall of the wind cylinder through a fixed rod on the periphery of the first motor, a fan blade is fixedly connected to the output end of the first motor, an exhaust pipe is fixedly connected to the bottom of the wind cylinder, a drying device is arranged on the side of the code spraying table away from the tensioning structure, and a winding device is further arranged on the end of the bearing plate away from the tensioning structure.

[0007] As a further optimization scheme of the utility model, the tensioning structure comprises two support plates symmetrically arranged at one end of the bearing plate, a sliding hole is formed in the top end of each support plate, two tensioning rollers are rotatably connected between the two sliding holes, and the two tensioning rollers can slide along the height direction of the sliding hole.

[0008] As a further optimization scheme of the utility model, the negative pressure holes are in strip-shaped structure, and the distance between the two negative pressure holes formed in the top wall of the code spraying table is smaller than the width of the packaging bag to be sprayed.

[0009] As a further optimization scheme of the utility model, the drying device includes a dryer fixedly installed above the bearing plate through a support, a guide plate is horizontally installed on the support below the dryer, and the upper surface height of the guide plate is flush with the upper surface height of the inkjet station.

[0010] As a further optimization scheme of the utility model, the winding device includes a winding roller rotatably connected to one end of the bearing plate away from the tensioning structure through a connecting frame, and further includes a second motor fixedly installed on the outer wall of one side of the connecting frame, and the output end of the second motor is fixed to one end of the winding roller.

[0011] As a further optimization scheme of the utility model, a bottom plate is arranged below the bearing plate, the upper surface of the bottom plate is attached to the horizontal section of the exhaust pipe, a plurality of support columns are arranged on the circumferential side of the bottom plate, and the bottom wall of the bearing plate and the upper surface of the bottom plate are fixed to the two ends of the support columns, respectively.

[0012] The utility model has the advantages that:

[0013] 1. Two negative pressure holes are formed in the upper surface of the inkjet station, and the spacing between the two negative pressure holes is less than the width of the packaging bag. When the packaging bag moves above the inkjet station for inkjet, the first motor installed in the air cylinder can be started, the fan blade is driven by the first motor to rotate at high speed in the air cylinder, the air in the inkjet station is discharged through the exhaust pipe, a negative pressure is formed in the inkjet station, under the action of the negative pressure, the negative pressure hole will move the packaging bag covered above it into the negative pressure hole, and the packaging bag is pulled tightly to the two sides, so as to avoid the problems of fluctuation, swelling and wrinkle of the packaging bag during inkjet, and affect the inkjet effect.

[0014] 2. A dryer is installed above the bearing plate through a support, a guide plate is installed on the support below the dryer, the upper surface height of the guide plate is flush with the upper surface height of the inkjet station, after the packaging bag is inkjetted, the end part of the packaging bag is passed through the gap between the guide plate and the dryer, and then the dryer is started, the packaging bag transmitted above the guide plate is heated by the dryer, the ink on the packaging bag is quickly dried, the problems of ink flow or adhesion are avoided as much as possible, and the inkjet clarity is affected. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole side structure diagram of the utility model;

[0016] Figure 2 It is another side structure diagram of the utility model;

[0017] Figure 3 It is a whole cross section structure diagram of the utility model;

[0018] Figure 4This is a schematic diagram of the connection mechanism between the first motor, the fixing rod, and the fan blade of this utility model.

[0019] In the diagram: 1. Bearing plate; 2. Support plate; 3. Tensioning roller; 4. Inkjet printer; 5. Inkjet printing table; 6. Negative pressure hole; 7. Air pressure balance hole; 8. Air duct; 9. First motor; 10. Fixing rod; 11. Fan blade; 12. Exhaust pipe; 13. Dryer; 14. Guide plate; 15. Take-up roller; 16. Second motor; 17. Base plate; 18. Support column. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example

[0022] like Figure 1 - Figure 4 As shown, a packaging bag coding device includes a carrier plate 1, with a tensioning structure installed at one end of the carrier plate 1. The tensioning structure includes two support plates 2 symmetrically arranged at one end of the carrier plate 1. Each support plate 2 has a sliding hole at its top. Two tensioning rollers 3 are rotatably connected between the two sliding holes, and both tensioning rollers 3 can slide along the height direction of the sliding holes. When in use, the upper tensioning roller 3 can slide up along the sliding hole to create a gap between the two tensioning rollers 3. Then, one end of the packaging bag is passed through the gap between the two tensioning rollers 3. When the upper tensioning roller 3 is released, the tensioning roller 3 will slide down along the sliding hole under its own weight, and cooperate with the lower tensioning roller 3 to squeeze the packaging bag, forming a damping effect on the transmission of the packaging bag, thereby achieving the tensioning of the packaging bag and minimizing the problem of the packaging bag becoming loose during transmission, which would affect the subsequent coding.

[0023] A coding machine 4 is installed above the bearing plate 1 on one side of the tensioning structure. A hollow coding platform 5 is fixedly connected to the bearing plate 1 below the coding machine 4. After the packaging bag passes through the tensioning structure, it passes through the top of the coding platform 5. The coding machine 4 installed above the coding platform 5 can automatically code the packaging bag.

[0024] Negative pressure holes 6 are provided on the top walls at both ends of the inkjet printer 5, which communicate with the internal cavity of the inkjet printer 5. The negative pressure holes 6 are strip-shaped. The distance between the two negative pressure holes 6 on the top wall of the inkjet printer 5 is smaller than the width of the packaging bag to be printed, so that when the packaging bag moves above the inkjet printer 5, the two sides of the packaging bag can cover the two negative pressure holes 6 respectively, thus sealing the negative pressure holes 6.

[0025] The air pressure balance hole 7 is arranged on one side of the code spraying table 5, the air cylinder 8 is fixedly arranged on the bottom wall of the bearing plate 1 and communicates with the code spraying table 5 at the top end, the first motor 9 is arranged in the inner cavity of the air cylinder 8, the first motor 9 is fixed on the inner wall of the air cylinder 8 through the fixed rod 10, the fan blade 11 is fixedly connected to the output end of the first motor 9, the exhaust pipe 12 is fixedly connected to the bottom of the air cylinder 8, before the code is sprayed by the code spraying machine 4, the first motor 9 installed in the air cylinder 8 can be started, the fan blade 11 is driven by the first motor 9 to rotate at high speed in the air cylinder 8, the air in the code spraying table 5 is discharged through the exhaust pipe 12, the negative pressure is formed in the code spraying table 5, under the action of the negative pressure, the negative pressure hole 6 can adsorb the packaging bag above to move into the negative pressure hole 6, the packaging bag is pulled tight to the two sides, and the problems that the packaging bag is fluctuated, bulged, wrinkled and the like during the code spraying are avoided as much as possible, so that the code spraying effect is affected;

[0026] The drying device is arranged on the side, away from the tensioning structure, of the code spraying table 5, the drying device comprises the dryer 13 which is fixedly installed above the bearing plate 1 through the support, the guide plate 14 is horizontally installed on the support below the dryer 13, the height of the upper surface of the guide plate 14 is flush with the height of the upper surface of the code spraying table 5, after the code spraying, the end portion of the packaging bag is passed through the gap between the guide plate 14 and the dryer 13, then the dryer 13 is started, the packaging bag transmitted above the guide plate 14 is heated by the dryer 13, the ink on the packaging bag is quickly dried, the problems that the ink flows or sticks and affects the code clarity are avoided as much as possible;

[0027] The winding device is further installed on the end, away from the tensioning structure, of the bearing plate 1, the winding device comprises the winding roller 15 which is rotationally connected to the end, away from the tensioning structure, of the bearing plate 1 through the connecting frame, further comprises the second motor 16 which is fixedly installed on the outer wall of one side of the connecting frame, the output end of the second motor 16 is fixed to one end of the winding roller 15, after the end portion of the packaging bag is dried by the dryer 13, the end portion can be fixed on the winding roller 15, then the second motor 16 is started to drive the winding roller 15 to rotate, the code sprayed packaging bag is wound, the packaging bag is moved by the winding roller 15, the tensioning structure is tensioned, the continuous code spraying work of the packaging bag is realized, and the code spraying efficiency is greatly improved;

[0028] The bottom plate 17 is arranged below the bearing plate 1, the upper surface of the bottom plate 17 is attached to the horizontal section of the exhaust pipe 12, a plurality of support columns 18 are arranged on the periphery of the bottom plate 17, the two ends of the support column 18 are respectively fixed to the bottom wall of the bearing plate 1 and the upper surface of the bottom plate 17, the bottom plate 17 and the support column 18 are arranged to form a space for installing the air cylinder 8 and the exhaust pipe 12 between the bottom plate 17 and the bearing plate 1, and the bottom plate 17 can stably support the bearing plate 1 in cooperation with the support column 18.

[0029] It should be noted that the packaging bag ink-jet printing device, the negative pressure hole 6 is arranged on the top wall of the two ends of the ink-jet printing table 5 and communicated with the internal cavity of the ink-jet printing table 5, the interval between the two negative pressure holes 6 is less than the width of the packaging bag, the air duct 8 is communicated in the ink-jet printing table 5, the first motor 9 is arranged in the inner cavity of the air duct 8, the first motor 9 is fixed on the inner wall of the air duct 8 through the fixed rod 10, the fan blade 11 is fixedly connected on the output end of the first motor 9, the exhaust pipe 12 is fixedly connected on the bottom of the air duct 8, when the packaging bag is transmitted above the ink-jet printing table 5 and ink-jet printing is carried out through the ink-jet printer 4, the first motor 9 installed in the air duct 8 can be started, the fan blade 11 is driven to rotate at high speed in the air duct 8 through the first motor 9, the air in the ink-jet printing table 5 is discharged through the exhaust pipe 12, the negative pressure is formed in the ink-jet printing table 5, under the action of the negative pressure, the negative pressure hole 6 will attract the packaging bag above to move into the negative pressure hole 6, the packaging bag is pulled tight to the two sides, the phenomenon of fluctuation, swelling, wrinkle and other phenomenon of the packaging bag during ink-jet printing is avoided as much as possible, the problem that the ink-jet printing effect is affected is caused.

[0030] The above-mentioned embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A packaging bag ink-jet printing device, comprising a carrier plate (1), one end of which is provided with a tensioning structure, and an ink-jet printer (4) is arranged above the carrier plate (1) on one side of the tensioning structure, characterized in that: The bearing plate (1) below the ink-jet printer (4) is fixedly connected with an internally hollow ink-jet table (5), both ends of the ink-jet table (5) are provided with negative pressure holes (6) communicated with the internal cavity of the ink-jet table (5), one side of the ink-jet table (5) is provided with an air pressure balance hole (7), the bottom wall of the bearing plate (1) is fixedly provided with a wind cylinder (8) communicated with the inside of the ink-jet table (5), a first motor (9) is arranged in the wind cylinder (8), the first motor (9) is fixed to the inner wall of the wind cylinder (8) through a fixed rod (10), a fan blade (11) is fixedly connected to the output end of the first motor (9), an exhaust pipe (12) is fixedly connected to the bottom of the wind cylinder (8), a drying device is arranged on the side of the ink-jet table (5) away from the tensioning structure, and a winding device is also arranged on the end of the bearing plate (1) away from the tensioning structure.

2. The packaging bag ink-jet printing apparatus according to claim 1, wherein: The tensioning structure comprises two support plates (2) symmetrically arranged at one end of the bearing plate (1), the top end of each support plate (2) is provided with a sliding hole, and two tensioning rollers (3) are rotatably connected between the two sliding holes and can slide along the height direction of the sliding hole.

3. The packaging bag ink-jet printing apparatus according to claim 1, wherein: The negative pressure hole (6) is in strip structure, and the distance between the two negative pressure holes (6) provided on the top wall of the ink-jet table (5) is smaller than the width of the packaging bag to be ink-jetted.

4. The packaging bag ink-jet printing apparatus according to claim 1, wherein: The drying device comprises a dryer (13) fixedly installed above the bearing plate (1) through a support, a guide plate (14) is horizontally installed on the support below the dryer (13), and the upper surface of the guide plate (14) is flush with the upper surface of the ink-jet table (5).

5. The packaging bag ink-jet printing apparatus according to claim 4, wherein: The winding device comprises a winding roller (15) rotatably connected to the end of the bearing plate (1) away from the tensioning structure through a connecting frame, and a second motor (16) fixedly installed on one side of the outer wall of the connecting frame, and the output end of the second motor (16) is fixed to one end of the winding roller (15).

6. The packaging bag ink-jet printing apparatus according to claim 1, wherein: A bottom plate (17) is arranged below the bearing plate (1), the upper surface of the bottom plate (17) is attached to the horizontal section of the exhaust pipe (12), a plurality of support columns (18) are arranged on the periphery of the bottom plate (17), and the two ends of each support column (18) are fixed to the bottom wall of the bearing plate (1) and the upper surface of the bottom plate (17).