A packaging bag printing apparatus that handles packaging bag winding

Abstract

This invention discloses a packaging bag printing device for processing rolled packaging bags, belonging to the technical field of packaging bag printing equipment. The device includes: a base with a front upright plate fixed above it; a rear upright plate fixed above the base; a drying chamber fixed above the base; a printing roller passing through the front upright plate and rotatably connected at the point of penetration; and a large motor fixed to the outer wall of the front upright plate. By setting up a sliding rod, a U-shaped plate, a connecting rod, a lead screw, a small motor, a horizontal plate, and a baffle plate, the baffle plate moves up and down after the small motor starts, disturbing the hot air inside the drying chamber. During the ink drying process after the packaging bag printing is completed, the heating element is located at the top of the drying chamber, and uneven heat distribution results in poor ink drying. The baffle plate's disturbance of the hot air makes the temperature inside the drying chamber more uniform, solving the problem of poor drying effect caused by uneven heat distribution.

Description

Technical Field

[0001] This invention relates to the field of packaging bag printing equipment technology, specifically to a packaging bag printing equipment for processing packaging bag winding. Background Technology

[0002] Packaging bag printing equipment is a core processing device in the packaging product manufacturing industry. It is mainly used to print patterns, text, and logos on the surface of substrates such as plastic film, composite film, and paper film. It is widely used in the production of packaging bags in industries such as food, daily chemicals, pharmaceuticals, consumer goods, and chemicals. After printing, the film material needs to be neatly wound up by a winding mechanism to allow subsequent processes such as slitting, bag making, and lamination to proceed continuously. The winding effect directly affects the appearance quality, dimensional accuracy, and subsequent processing efficiency of the finished packaging bags, and is a key link that determines the yield rate of the entire production line.

[0003] In existing packaging bag printing equipment that processes the winding of packaging bags, during the ink drying process after the packaging bags are printed, the heating tube is located at the top of the drying chamber, which results in uneven heat distribution and poor ink drying effect. In view of this, a new packaging bag printing equipment for processing the winding of packaging bags is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a packaging bag printing device for processing package bag rolls, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a packaging bag printing device for processing packaging bag roll-up, comprising: a base, wherein a front upright plate is fixed above the base; The rear upright plate is fixed above the base, and a drying box is fixed above the base. A printing roller passes through the front upright plate and is rotatably connected at the point of penetration. A large motor is fixed to the outer wall of the front upright plate, and the output end of the large motor is fixedly connected to the end of the printing roller. A conveyor roller is rotatably connected to the inner wall of the front upright plate, and a scraper is fixed to the inner wall of the front upright plate. A take-up roller passes through the rear upright plate and is rotatably connected at the point of penetration. The ends of the printing roller and the take-up roller are fixed with pulleys, and the inner wall of the pulleys is fitted with a belt. A heating rod is fixed to the upper inner wall of the drying box. A sliding rod is fixed above the base. A U-shaped plate is fixed above the sliding rod. A small motor is fixed to the side wall of the U-shaped plate. A lead screw is fixed to the output end of the small motor. The bottom of the lead screw is rotatably connected to the base. A horizontal plate is slidably connected to the outer wall of the sliding rod. The horizontal plate is threadedly connected to the lead screw. A connecting rod is fixed below the horizontal plate. The connecting rod passes through the drying chamber and is slidably connected at the point of penetration. A baffle is fixed to the bottom of the connecting rod. The baffle is used to turbulent the airflow inside the drying chamber.

[0006] According to the above technical solution, the drying oven has an internal cavity, the inner wall of the cavity is fixed with a plastic plate, and the side wall of the baffle is fixed with a friction plate.

[0007] According to the above technical solution, the friction plate is bonded to the plastic plate, and the friction plate and the plastic plate are used to generate static electricity through friction, and the cavity is used to collect dust.

[0008] According to the above technical solution, a vibrating material mechanism is provided above the base, which is used to make the pigment on the scraper fall off; a cooling mechanism is provided above the base, which is used to cool the dried packaging bag.

[0009] According to the above technical solution, the vibrating material mechanism includes: a Z-shaped plate, which is fixed to the side wall of the horizontal plate; A vibrating rod passes through the lower end of the Z-shaped plate and is slidably connected at the point of penetration. A convex ball is fixed on the side of the front upright plate near the Z-shaped plate.

[0010] According to the above technical solution, a small spring is fixed on the side of the Z-shaped plate away from the front upright plate. The small spring is fixedly connected to the vibration rod, which is used to strike the front upright plate.

[0011] According to the above technical solution, the cooling mechanism includes: an air box, which is fixed to the outer wall of the drying oven; A pressure rod is fixed above the horizontal plate. The pressure rod passes through the air box and is slidably connected at the point of penetration. A pressure plate is fixed at the lower end of the pressure rod, and the pressure plate is in contact with the inner wall of the air box.

[0012] According to the above technical solution, an air jet pipe is fixed to the outer wall of the air box, an air jet hole is opened at the bottom of the air box, and the pressure plate is used to squeeze the air in the air box.

[0013] This invention provides a packaging bag printing device for processing packaged bag rolls. It has the following beneficial effects: 1. This invention, by setting up a sliding rod, a U-shaped plate, a connecting rod, a lead screw, a small motor, a horizontal plate, and a baffle plate, allows the baffle plate to move up and down after the small motor starts, disturbing the hot air inside the drying chamber. During the ink drying process after the packaging bag printing is completed, the heating tube at the top of the drying chamber causes uneven heat distribution, resulting in poor ink drying. The baffle plate's disturbance of the hot air makes the temperature inside the drying chamber more uniform, thus solving the problem of poor drying effect caused by uneven heat distribution.

[0014] 2. This invention solves the problem of poor printing results caused by dust adhering to the ink on packaging bags if there is dust in the drying oven by setting up a cavity, a plastic plate, and a friction plate. The baffle plate drives the friction plate to rub the plastic plate back and forth, and the resulting electrostatic adsorption attracts fine dust in the drying oven.

[0015] 3. This invention, by setting up a Z-shaped plate, a vibrating rod, a convex ball, and a small spring, allows the horizontal plate to drive the Z-shaped plate to move up and down, causing the vibrating rod to strike the front vertical plate and generate vibration. This allows the excess ink scraped off the scraper to fall off quickly, solving the problem that when the scraper removes excess ink from the printing roller, the ink tends to stick and adhere, resulting in excess pigment remaining on the printing roller.

[0016] 4. This invention, by setting up a pressure bar, pressure plate, air jet pipe, air box, air jet hole and scraper, and the horizontal plate drives the pressure bar to move up and down, so that the gas in the air box is continuously compressed and sprayed downwards, so that the freshly printed packaging bag is cooled down quickly under the influence of the air jet, which solves the problem of heat accumulation inside the roll layer caused by the immediate winding of the dried packaging bag, which leads to ink fading and film aging. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a partial structural diagram of the present invention; Figure 5 This is a schematic diagram of the vibrating material mechanism of the present invention; Figure 6 This is a schematic diagram of the cooling mechanism of the present invention.

[0018] In the diagram: 1. Base; 2. Front upright plate; 3. Rear upright plate; 4. Drying oven; 5. Printing roller; 6. Large motor; 7. Pulley; 8. Belt; 9. Rewinding roller; 10. Conveyor roller; 11. Heating rod; 12. Slide rod; 13. U-shaped plate; 14. Connecting rod; 15. Lead screw; 16. Small motor; 17. Horizontal plate; 18. Baffle plate; 191. Cavity; 192. Plastic plate; 193. Friction plate; 201. Z-shaped plate; 202. Vibrating rod; 203. Convex ball; 204. Small spring; 211. Pressure rod; 212. Pressure plate; 213. Jet pipe; 214. Air box; 215. Jet hole; 22. Scraper. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-6 One embodiment of the present invention is: a packaging bag printing device for processing packaging bag winding, comprising: a base 1, a front upright plate 2 fixed above the base 1, a rear upright plate 3 fixed above the base 1, a drying chamber 4 fixed above the base 1, a printing roller 5 passing through the front upright plate 2 and rotatably connected at the point of penetration, a large motor 6 fixed to the outer wall of the front upright plate 2, the output end of the large motor 6 being fixedly connected to the end of the printing roller 5, a conveyor roller 10 rotatably connected to the inner wall of the front upright plate 2, a scraper 22 fixed to the inner wall of the front upright plate 2, a winding roller 9 passing through the rear upright plate 3 and rotatably connected at the point of penetration, pulleys 7 fixed to the ends of the printing roller 5 and the winding roller 9, a belt 8 attached to the inner wall of the pulley 7, a heating rod 11 fixed to the inner upper wall of the drying chamber 4, a slide rod 12 fixed above the base 1, and a heating rod 11 above the slide rod 12. A U-shaped plate 13 is fixed, and a small motor 16 is fixed to the side wall of the U-shaped plate 13. A lead screw 15 is fixed to the output end of the small motor 16. The bottom of the lead screw 15 is rotatably connected to the base 1. A horizontal plate 17 is slidably connected to the outer wall of the slide rod 12. The horizontal plate 17 is threadedly connected to the lead screw 15. A connecting rod 14 is fixed below the horizontal plate 17. The connecting rod 14 passes through the drying box 4 and is slidably connected at the point of penetration. A baffle plate 18 is fixed to the bottom of the connecting rod 14. The baffle plate 18 is used to turbulent the airflow inside the drying box 4. A cavity 191 is opened inside the drying box 4. A plastic plate 192 is fixed to the inner wall of the cavity 191. A friction plate 193 is fixed to the side wall of the baffle plate 18. The friction plate 193 is attached to the plastic plate 192. The friction plate 193 and the plastic plate 192 are used to generate static electricity through friction. The cavity 191 is used to collect dust.

[0021] This invention utilizes a sliding rod 12, a U-shaped plate 13, a connecting rod 14, a lead screw 15, a small motor 16, a horizontal plate 17, and a baffle plate 18. When the small motor 16 is started, it drives the baffle plate 18 to perform regular up-and-down reciprocating motion, continuously agitating the hot airflow inside the drying chamber 4. After printing, the packaging bags need to be sent to the drying chamber 4 to cure and dry the surface ink. In this equipment, the heating rod 11 is located at the top of the drying chamber 4. During long-term operation, heat tends to accumulate at the top of the chamber, causing a large temperature difference between the upper and lower areas and uneven temperature distribution, directly leading to inconsistent ink curing rates and poor overall drying results. The reciprocating agitation of the baffle plate 18 disperses localized heat accumulation areas, promotes the circulation of hot air inside the chamber, and makes the temperature throughout the drying chamber 4 more uniform, effectively solving the problem of poor ink drying quality caused by uneven heat distribution. The system also includes a cavity 191, a plastic plate 192, and a friction plate 193. As the baffle 18 moves up and down, it simultaneously drives the friction plate 193 to reciprocate against the plastic plate 192. This utilizes the principle of triboelectric charging to generate static electricity on the surface of the plastic plate 192, which then attracts and traps fine dust particles suspended within the drying chamber 4. Free dust within the drying chamber 4 easily adheres to the surface of incompletely cured ink, causing blemishes and defects in the printed pattern, thus reducing the quality of the finished product. This structure actively absorbs floating dust within the chamber, preventing dust from adhering to the ink surface of the packaging bag and ensuring the quality of the printed product.

[0022] In this embodiment, during operation: the operator sequentially inserts the packaging bags to be processed between the conveyor roller 10 and the printing roller 5, and secures the end of the packaging bag to the take-up roller 9. The heating rod 11, the large motor 6, and the small motor 16 are then activated, and the equipment enters continuous operation. The large motor 6 drives the printing roller 5 to rotate clockwise. Under the linkage of the belt 8 and the pulley 7, the printing roller 5 synchronously drives the take-up roller 9 to operate in coordination. During the rotation of the printing roller 5, it first picks up ink, then the excess ink on the roller surface is scraped off by the scraper 22. Subsequently, the ink-laden area of ​​the roller surface contacts the packaging bag to complete the printing operation. The packaging bag is continuously and uniformly conveyed towards the take-up roller 9 under the clamping and traction of the conveyor roller 10 and the printing roller 5. The printed packaging bag then enters the drying chamber 4, where the heating rod 11, located at the top, provides a heat source to heat and cure the surface ink. Because the heating rod 11 is concentrated at the top of the drying chamber 4, heat tends to accumulate upwards, causing temperature stratification and uneven distribution within the chamber. At this time, the small motor 16 drives the lead screw 15 to rotate, and the lead screw 15 converts the rotational motion into linear reciprocating motion, driving the horizontal plate 17 to move up and down along the guide structure of the slide rod 12 and the U-shaped plate 13. The horizontal plate 17 further drives the baffle 18 to move up and down synchronously through the connecting rod 14. During the movement, the baffle 18 continuously stirs the hot air inside the chamber, breaking up local heat accumulation, keeping the internal temperature of the drying chamber 4 uniform, accelerating the ink setting and curing speed, and improving the overall drying efficiency and effect. During the entire process of packaging bag conveying and ink drying, there will inevitably be suspended fine dust inside the drying chamber 4. If the floating dust comes into contact with the undried ink, it will cause printing defects. While the baffle 18 is reciprocating, it drives the friction plate 193 to move synchronously, so that the friction plate 193 and the plastic plate 192 form continuous reciprocating friction, continuously generating an electrostatic adsorption effect. Fine dust floating inside the box is absorbed and gathered by the plastic plate 192. After accumulating to a certain extent, it falls off on its own and is collected in the cavity 191 below, thus preventing dust from contaminating the ink and effectively avoiding printing defects caused by dust.

[0023] Please see Figures 1-6 Based on the above embodiments, in another embodiment of the present invention, a vibrating material mechanism is provided above the base 1, which is used to cause the pigment on the scraper 22 to fall off.

[0024] The vibrating mechanism includes: a Z-shaped plate 201, a vibrating rod 202, a convex ball 203, and a small spring 204. The Z-shaped plate 201 is fixed to the side wall of the horizontal plate 17. The vibrating rod 202 passes through the lower end of the Z-shaped plate 201 and is slidably connected at the point of penetration. A convex ball 203 is fixed on the side of the front upright plate 2 near the Z-shaped plate 201, and a small spring 204 is fixed on the side of the Z-shaped plate 201 away from the front upright plate 2. The small spring 204 is fixedly connected to the vibrating rod 202. The vibrating rod 202 is used to strike the front upright plate 2.

[0025] By setting up a Z-shaped plate 201, a vibrating rod 202, a convex ball 203, and a small spring 204, the horizontal plate 17 drives the Z-shaped plate 201 to move up and down, causing the vibrating rod 202 to strike the front vertical plate 2 and generate vibration. This allows the excess ink scraped off by the scraper 22 to fall off quickly, solving the problem that when the scraper 22 scrapes off excess ink from the printing roller 5, the ink tends to stick, resulting in excess pigment remaining on the printing roller 5.

[0026] A cooling mechanism is provided above the base 1 to cool the dried packaging bags. The cooling mechanism includes an air box 214, a pressure rod 211, a pressure plate 212, an air jet pipe 213, and an air jet hole 215. The air box 214 is fixed to the outer wall of the drying chamber 4, the pressure rod 211 is fixed above the horizontal plate 17, the pressure rod 211 passes through the air box 214 and is slidably connected at the point of penetration, the lower end of the pressure rod 211 is fixed with the pressure plate 212, the pressure plate 212 is in contact with the inner wall of the air box 214, the outer wall of the air box 214 is fixed with the air jet pipe 213, the lower part of the air box 214 is provided with an air jet hole 215, and the pressure plate 212 is used to compress the air in the air box 214.

[0027] By setting up a pressure bar 211, a pressure plate 212, an air jet pipe 213, an air box 214, an air jet hole 215, and a scraper 22, the horizontal plate 17 drives the pressure bar 211 to move up and down, so that the gas in the air box 214 is continuously compressed and sprayed downwards, so that the freshly printed packaging bag cools down quickly under the influence of the air jet. This solves the problem of heat accumulation inside the roll layer caused by immediately winding up the dried packaging bag, which leads to ink fading and film aging.

[0028] During the lifting and lowering process of the horizontal plate 17, the pressure rod 211 and pressure plate 212 reciprocate, repeatedly compressing the air inside the air box 214, causing the airflow to continuously spray downwards, thus forcibly cooling the freshly dried packaging bags. If the packaging bags are directly rolled up after high-temperature drying, the heat inside the roll cannot dissipate in time, and the continuous heat accumulation will cause ink fading and accelerated aging of the packaging bag film. This mechanism effectively improves this problem through continuous air jet cooling.

[0029] In this embodiment, during the reciprocating movement of the horizontal plate 17, the Z-shaped plate 201 moves synchronously, which in turn drives the vibrating rod 202 to move synchronously. When the vibrating rod 202 moves to contact the convex ball 203, it is blocked and squeezed by the convex ball 203, causing the vibrating rod 202 to shift away from the front vertical plate 2. At the same time, it squeezes the small spring 204, causing it to elastically compress and store potential energy. When the vibrating rod 202 continues to move and leaves the blocking range of the convex ball 203, the small spring 204 releases its elastic potential energy and quickly resets, pushing the vibrating rod 202 to move in the opposite direction and impact the front vertical plate 2. The mechanical vibration generated by the impact is transmitted along the plate to the scraper 22, causing the viscous ink attached to the surface of the scraper 22 to loosen and drip quickly, preventing the ink from sticking and accumulating on the surface of the scraper 22 for a long time, and ensuring the scraping effect of the scraper 22 on the residual ink of the printing roller 5.

[0030] Simultaneously, as the horizontal plate 17 moves up and down, it drives the pressure rod 211 and the pressure plate 212 to reciprocate synchronously. When the pressure plate 212 moves downward, it squeezes the sealed air inside the air box 214, and the high-pressure airflow is directionally ejected from the jet hole 215 to blow air and dissipate heat from the packaging bags being conveyed below. When the pressure plate 212 returns to its original position, a negative pressure is formed inside the air box 214 to complete air intake, and when it is pressed down again, air is ejected from the jet pipe 213 to dissipate heat. Relying on the continuous reciprocating squeezing of the pressure plate 212, uninterrupted directional jetting is achieved, which continuously and forcibly cools the packaging bags that have just been dried, avoids heat accumulation in the roll layer after the packaging bags are rolled up, effectively prevents ink fading and accelerated aging of plastic film due to high temperature, and ensures the quality of the finished product.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging bag printing device for processing packaged bag rolls, characterized in that, include: A base (1) is provided, and a front upright plate (2) is fixed on the top of the base (1). The rear upright plate (3) is fixed above the base (1), and the drying box (4) is fixed above the base (1). The front upright plate (2) has a printing roller (5) passing through it and is rotatably connected at the point of penetration. A large motor (6) is fixed on the outer wall of the front upright plate (2). The output end of the large motor (6) is fixedly connected to the end of the printing roller (5). A conveyor roller (10) is rotatably connected to the inner wall of the front upright plate (2). A scraper (22) is fixed on the inner wall of the front upright plate (2). The take-up roller (9) passes through the rear upright plate (3) and is rotatably connected at the point of penetration. The ends of the printing roller (5) and the take-up roller (9) are fixed with pulleys (7). The inner wall of the pulleys (7) is fitted with belts (8). The upper inner wall of the drying box (4) is fixed with heating rods (11). A sliding rod (12) is fixed above the base (1). A U-shaped plate (13) is fixed above the sliding rod (12). A small motor (16) is fixed on the side wall of the U-shaped plate (13). A lead screw (15) is fixed at the output end of the small motor (16). The bottom of the lead screw (15) is rotatably connected to the base (1). A horizontal plate (17) is slidably connected to the outer wall of the sliding rod (12). The horizontal plate (17) is threadedly connected to the lead screw (15). A connecting rod (14) is fixed below the horizontal plate (17). The connecting rod (14) passes through the drying box (4) and is slidably connected at the point of penetration. A baffle plate (18) is fixed at the bottom of the connecting rod (14). The baffle plate (18) is used to turbulent the airflow inside the drying box (4).

2. The packaging bag printing equipment for processing packaged bag winding according to claim 1, characterized in that, The drying oven (4) has an internal cavity (191), the inner wall of the cavity (191) is fixed with a plastic plate (192), and the side wall of the baffle plate (18) is fixed with a friction plate (193).

3. The packaging bag printing equipment for processing packaged bag winding according to claim 2, characterized in that, The friction plate (193) is attached to the plastic plate (192), and the friction plate (193) and the plastic plate (192) are used to generate static electricity through friction. The cavity (191) is used to collect dust.

4. The packaging bag printing equipment for processing the winding of packaging bags according to claim 3, characterized in that, A vibrating material mechanism is provided above the base (1) to cause the pigment on the scraper (22) to fall off; a cooling mechanism is provided above the base (1) to cool the dried packaging bag.

5. The packaging bag printing equipment for processing the winding of packaging bags according to claim 4, characterized in that, The vibrating material mechanism includes: a Z-shaped plate (201), which is fixed to the side wall of the horizontal plate (17); Vibration rod (202) passes through the lower end of Z-shaped plate (201) and is slidably connected at the passage. A convex ball (203) is fixed on the side of the front upright plate (2) near Z-shaped plate (201).

6. The packaging bag printing equipment for processing the winding of packaging bags according to claim 5, characterized in that, A small spring (204) is fixed on the side of the Z-shaped plate (201) away from the front upright plate (2). The small spring (204) is fixedly connected to the vibration rod (202), which is used to strike the front upright plate (2).

7. The packaging bag printing equipment for processing the winding of packaging bags according to claim 6, characterized in that, The cooling mechanism includes an air box (214), which is fixed to the outer wall of the drying oven (4); A pressure rod (211) is fixed above the horizontal plate (17). The pressure rod (211) passes through the air box (214) and is slidably connected at the point of penetration. A pressure plate (212) is fixed at the lower end of the pressure rod (211). The pressure plate (212) is in contact with the inner wall of the air box (214).

8. The packaging bag printing equipment for processing the winding of packaging bags according to claim 7, characterized in that, The outer wall of the air box (214) is fixed with a jet pipe (213), and a jet hole (215) is opened at the bottom of the air box (214). The pressure plate (212) is used to squeeze the air in the air box (214).

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