Plastic packaging bag surface pattern printing device

Abstract

The utility model discloses a plastic packaging bag surface pattern printing device which can effectively remove dust and impurities on the surface of a packaging bag through the cooperative use of a dust removal sticky cylinder and an elastic dust collection sleeve, and meanwhile, the thoroughness of the dust collection effect is ensured through the introduction of a dust collection fan and a dust collection box. A spray head is arranged in the device and used for spraying an oil antistatic agent solution, and static electricity on the surface of the packaging bag is effectively neutralized; the dust-removing sticky cylinder is driven by a synchronizing shaft, a first gear, a second gear and a third gear to synchronously move with the conveying roller, so that the cleaning effect and the conveying stability of the packaging bag are improved; the section of the dust collection nozzle is of an isosceles trapezoid structure with a wide upper part and a narrow lower part, so that the dust collection area is increased, and the dust collection efficiency is improved; the sprayer is located on the side away from the dust collection nozzle, and mutual interference is avoided. Meanwhile, the cross section of the blowing air nozzle is of an isosceles trapezoid structure with a narrow upper part and a wide lower part, so that uniform blowing is facilitated, and the cleaning and antistatic treatment effects are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to printing, in particular to a device for printing patterns on the surface of a plastic packaging bag. Background Art

[0002] Surface printing is a crucial step in the production of plastic packaging bags. Traditional plastic packaging printing equipment often fails to effectively clean the bag surface before printing, resulting in blurred, unclear, or even detached printed patterns, seriously impacting product quality and aesthetics. Furthermore, static electricity easily accumulates during production and storage, which not only affects printing quality but can also adversely impact subsequent packaging and transportation processes.

[0003] The existing plastic packaging bag pre-printing treatment device, such as the patent application number: CN202322868321.0, the patent name is: A utility model patent for a plastic packaging bag surface printing device, the scheme's "cleaning structure consists of a mounting base and a cleaning pad, the cleaning pad is installed at the inner end of the mounting base, and by setting the mounting limit structure and the cleaning structure, the packaging bags that are about to enter the printing machine body for printing can be cleaned, so that the packaging bags can be printed in a relatively clean state"; this cleaning structure is relatively simple, mainly relying on the cleaning pad for physical contact cleaning, lacks dust absorption and anti-static functions, resulting in limited cleaning effect, which may cause electrostatic interference during the printing process; moreover, the structural design does not take into account the synchronization between the cleaning structure and the packaging bag conveying, which may result in poor cleaning effect or damage to the packaging bag surface, affecting the printing quality and stability. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, in order to solve the above technical problems, the present utility model provides the following technical solutions: a device for printing patterns on the surface of a plastic packaging bag, comprising a main unit and a dust removal unit;

[0006] The main unit includes a printing machine body, the printing machine body is fixedly connected to a winding frame, and the winding frame is provided with multiple groups of conveying rollers for conveying plastic packaging bags, the conveying rollers are rotatably connected to the winding frame, and the conveying rollers are connected to a motor;

[0007] The dust removal unit includes a dust removal sticky cylinder, an elastic dust suction sleeve is sleeved on the outside of the dust removal sticky cylinder, a dust suction nozzle is arranged on the top of the elastic dust suction sleeve, the dust suction nozzle is connected to a dust suction fan through a pipe, and the dust suction fan is connected to a dust collection box through a pipe; a nozzle is arranged on one side of the elastic dust suction sleeve, the nozzle is connected to a pump body through a pipe, the pump body is connected to a liquid storage tank, and the liquid storage tank stores an oil antistatic agent solution; a blowing nozzle is arranged on one side of the dust removal sticky cylinder, and the blowing nozzle is connected to a hot air blower through a pipe.

[0008] As a preferred solution of the plastic packaging bag surface pattern printing device described in the utility model, wherein: a synchronization shaft is arranged at the end of the dust removal sticky cylinder, a first gear is arranged at the end of the synchronization shaft, the first gear is meshedly connected to the second gear, the second gear is meshedly connected to the third gear on the side away from the first gear, and the third gear is fixed at the end of one group of conveying rollers.

[0009] As a preferred solution of the plastic packaging bag surface pattern printing device described in the utility model, the elastic dust suction cover is made of silicone material, and the surface of the elastic dust suction cover is densely covered with a texture structure with grooves, which is used to increase the contact area with the surface of the plastic packaging bag and improve the adhesion effect.

[0010] As a preferred solution of the plastic packaging bag surface pattern printing device described in the utility model, the dust suction nozzle and the nozzle are respectively arranged on the left and right sides of the dust removal sticky cylinder, the dust suction nozzle is located on the side of the dust removal sticky cylinder close to the blowing nozzle, and the nozzle is located on the side of the dust removal sticky cylinder away from the dust suction nozzle.

[0011] As a preferred solution of the plastic packaging bag surface pattern printing device described in the present invention, the cross-section of the dust suction nozzle is an isosceles trapezoidal structure that is wide at the top and narrow at the bottom. The top of the dust suction nozzle is connected to a dust collecting hood, which is connected to the dust collecting fan through a pipe.

[0012] As a preferred solution of the device for printing patterns on the surface of plastic packaging bags of the present invention, the blowing nozzle is arranged on the discharge side of the dust removal sticking cylinder, and the cross section of the blowing nozzle is an isosceles trapezoidal structure that is narrow at the top and wide at the bottom.

[0013] Beneficial effects of the utility model:

[0014] 1. This utility model effectively removes dust and impurities from the surface of packaging bags through the combined use of a dust removal sticky cartridge and an elastic dust collection sleeve. The introduction of a dust collection fan and dust collection box ensures thorough dust collection. The textured surface of the elastic dust collection sleeve further increases the contact area with the packaging bag surface, improving adhesion.

[0015] 2. The device of the present invention is provided with a nozzle for spraying an oil antistatic agent solution, which effectively neutralizes static electricity on the surface of the packaging bag and avoids the adverse effects of static electricity on printing effects and subsequent links.

[0016] 3. The dust removal sticky cylinder in the utility model realizes synchronous movement with the conveying roller through the transmission of the synchronous shaft, the first gear, the second gear and the third gear, thereby improving the cleaning effect and the conveying stability of the packaging bag.

[0017] 4. The layout of the suction nozzle and nozzle in this utility model is rational. The nozzle cross-section is an isosceles trapezoidal structure, wide at the top and narrow at the bottom, which helps to increase the suction area and improve dust collection efficiency. The nozzle is located to the side away from the suction nozzle to avoid mutual interference. At the same time, the cross-section of the blowing nozzle is an isosceles trapezoidal structure, narrow at the top and wide at the bottom, which promotes uniform blowing, further improving the cleaning and anti-static treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic cross-sectional structural diagram of the present utility model.

[0021] Figure 3 For the utility model Figure 2 Schematic diagram of the side structure.

[0022] Figure 4 For the utility model Figure 3 Schematic diagram of the upward-looking structure.

[0023] Figure 5 For the utility model Figure 2 Schematic diagram of the side structure.

[0024] In the figure: 100, main unit; 101, printing machine body; 102, winding frame; 103, conveyor roller; 104, motor;

[0025] 200, dust removal unit; 201, dust removal sticky cylinder; 202, elastic dust suction sleeve; 203, dust suction nozzle; 204, dust suction fan; 205, dust collection box; 206, nozzle; 207, pump body; 208, liquid storage tank; 209, blowing nozzle; 210, hot air blower; 211, synchronization shaft; 212, first gear; 213, second gear; 214, third gear; 215, dust collection hood. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing embodiments of the present invention, cross-sectional views of device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0030] Reference Figures 1 to 5 , is an embodiment of the present utility model, which provides a plastic packaging bag surface pattern printing device, including a main unit 100 and a dust removal unit 200;

[0031] The main unit 100 includes a printing machine body 101, which is fixedly connected to a winding frame 102. The winding frame 102 is provided with a plurality of conveyor rollers 103 for conveying plastic packaging bags. The conveyor rollers 103 are rotatably connected to the winding frame 102, and the conveyor rollers 103 are connected to a motor 104 (the winding functional components composed of the conveyor rollers 103 and the motor 104 are direct applications of existing mature technologies, and their specific structures and related working principles are not described in detail here);

[0032] The dust removal unit 200 includes a dust removal sticky cylinder 201, a synchronization shaft 211 is arranged at the end of the dust removal sticky cylinder 201, and a first gear 212 is arranged at the end of the synchronization shaft 211. The first gear 212 is meshedly connected to a second gear 213. The second gear 213 is meshedly connected to a third gear 214 on a side away from the first gear 212. The third gear 214 is fixed to the end of one set of conveying rollers 103.

[0033] The outer portion of the dust removal sticky cylinder 201 is sheathed with an elastic dust collection sleeve 202, which is made of silicone. The surface of the elastic dust collection sleeve 202 is densely covered with a textured structure with grooves, which is used to increase the contact area with the surface of the plastic packaging bag and improve the adhesion effect.

[0034] The top of the elastic dust collection sleeve 202 is provided with a dust collection nozzle 203, the dust collection nozzle 203 is connected to a dust collection fan 204 through a pipeline, and the dust collection fan 204 is connected to a dust collection box 205 through a pipeline; a nozzle 206 is arranged on one side of the elastic dust collection sleeve 202, the nozzle 206 is connected to a pump body 207 through a pipeline, and the pump body 207 is connected to a liquid storage tank 208, and the liquid storage tank 208 stores an oil antistatic agent solution; the dust collection nozzle 203 and the nozzle 206 are respectively arranged on the left and right sides of the dust removal sticky cylinder 201, and the dust collection nozzle 203 is located on the dust removal sticky cylinder 201 near the nozzle air blower. On one side of the nozzle 209, the nozzle 206 is located on the side of the dust removal sticky cylinder 201 away from the dust suction nozzle 203; a blowing nozzle 209 is arranged on one side of the dust removal sticky cylinder 201, and the blowing nozzle 209 is connected to the hot air blower 210 through a pipe; the cross-section of the dust suction nozzle 203 is an isosceles trapezoidal structure that is wide at the top and narrow at the bottom, and the top of the dust suction nozzle 203 is connected to a dust collecting hood 215, and the dust collecting hood 215 is connected to the dust suction fan 204 through a pipe; the blowing nozzle 209 is arranged on the discharge side of the dust removal sticky cylinder 201, and the cross-section of the blowing nozzle 209 is an isosceles trapezoidal structure that is narrow at the top and wide at the bottom.

[0035] In this embodiment, the present invention's surface pattern printing device for plastic packaging bags operates by first conveying the plastic packaging bag to be printed to the printer body 101 via conveyor roller 103. During this conveying process, the dust-removing sticky cylinder 201, driven by a synchronizing shaft 211, first gear 212, second gear 213, and third gear 214, maintains synchronous movement with the conveyor roller 103. The elastic dust collection sleeve 202 on the exterior of the dust-removing sticky cylinder 201 adheres tightly to the surface of the packaging bag, effectively removing dust and impurities.

[0036] At the same time, the dust suction fan 204 sucks the dust on the elastic dust suction sleeve 202 into the dust collection box 205 through the dust suction nozzle 203, ensuring the thoroughness of the cleaning process. During the cleaning process, the pump body 207 is activated, so that the pump body 207 pumps the antistatic solution through the pipeline to the nozzle 206. The nozzle 206 continuously sprays the antistatic solution onto the surface of the elastic dust suction sleeve 202, effectively neutralizing the static electricity on the surface of the packaging bag.

[0037] Finally, the blowing nozzle 209 blows air toward the surface of the packaging bag through the hot air blower 210 to further blow away the remaining dust and solution, ensuring that the surface of the packaging bag is clean and smooth, providing a good foundation for the subsequent printing process.

[0038] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A device for printing patterns on the surface of a plastic packaging bag, characterized by: It comprises a main body unit (100) and a dust removal unit (200); The main unit (100) comprises a printing machine main body (101), the printing machine main body (101) is fixedly connected to a winding frame (102), a plurality of conveying rollers (103) for conveying plastic packaging bags are arranged on the winding frame (102), the conveying rollers (103) are rotatably connected to the winding frame (102), and the conveying rollers (103) are connected to a motor (104); The dust removal unit (200) comprises a dust removal sticky cylinder (201), the outer portion of the dust removal sticky cylinder (201) is sleeved with an elastic dust suction sleeve (202), a dust suction nozzle (203) is arranged at the top end of the elastic dust suction sleeve (202), the dust suction nozzle (203) is connected to a dust suction fan (204) through a pipeline, and the dust suction fan (204) is connected to a dust collection box (205) through a pipeline; a nozzle (206) is arranged on one side of the elastic dust suction sleeve (202), the nozzle (206) is connected to a pump body (207) through a pipeline, the pump body (207) is connected to a liquid storage tank (208), and the liquid storage tank (208) stores an oil antistatic agent solution; a blowing nozzle (209) is arranged on one side of the dust removal sticky cylinder (201), and the blowing nozzle (209) is connected to a hot air blower (210) through a pipeline.

2. The device for printing a pattern on the surface of a plastic packaging bag according to claim 1, wherein: A synchronization shaft (211) is arranged at the end of the dust removal sticky cylinder (201), a first gear (212) is arranged at the end of the synchronization shaft (211), the first gear (212) is meshedly connected to a second gear (213), a side of the second gear (213) away from the first gear (212) is meshedly connected to a third gear (214), and the third gear (214) is fixed to the end of one group of conveying rollers (103).

3. The device for printing a pattern on the surface of a plastic packaging bag according to claim 1, wherein: The elastic dust collection sleeve (202) is made of silica gel, and the surface of the elastic dust collection sleeve (202) is densely covered with a texture structure with grooves, which is used to increase the contact area with the surface of the plastic packaging bag and improve the adhesion effect.

4. The device for printing a pattern on the surface of a plastic packaging bag according to claim 1, wherein: The dust suction nozzle (203) and the nozzle (206) are respectively arranged on the left and right sides of the dust removal sticky cylinder (201), the dust suction nozzle (203) is located on the side of the dust removal sticky cylinder (201) close to the blowing nozzle (209), and the nozzle (206) is located on the side of the dust removal sticky cylinder (201) away from the dust suction nozzle (203).

5. The device for printing patterns on the surface of a plastic packaging bag according to claim 1, wherein: The cross section of the dust suction nozzle (203) is an isosceles trapezoidal structure that is wide at the top and narrow at the bottom. The top end of the dust suction nozzle (203) is connected to a dust collecting hood (215), which is connected to the dust suction fan (204) through a pipeline.

6. The device for printing patterns on the surface of a plastic packaging bag according to claim 1, wherein: The blowing nozzle (209) is arranged on the discharge side of the dust removal sticking cylinder (201), and the cross section of the blowing nozzle (209) is an isosceles trapezoidal structure that is narrow at the top and wide at the bottom.

Images