Color printing and code spraying device for plastic packaging bags

Abstract

The utility model provides a color printing and code spraying device for plastic packaging bags, and belongs to the technical field of packaging bag jet printing. Comprising a conveying belt used for conveying packaging bags; the fixed seat and the conveying belt are oppositely and fixedly arranged; the movable base is located over the conveying belt, the top of the movable base is movably connected with the machine box in a matched mode through two toothed bars, and a spray head is arranged at the bottom of the movable base; the drying assembly is located on the rear section, relative to the fixing base, in the running direction of the conveying belt. According to the code spraying device, the conveying belt is arranged to be matched with the fixed seat, the movable seat capable of linearly moving up and down is arranged on the fixed seat, and the spray head used for spraying codes is arranged below the movable seat, so that the packaging bags can stably pass through the position below a code spraying area, assembly line type code spraying printing is achieved, code spraying efficiency is improved, and then production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag printing, in particular to a color printing and coding device for plastic packaging bags. Background Art

[0002] Plastic packaging bags are made of plastic as raw materials and are used to produce various daily necessities. They are widely used in daily life and industrial production. Commonly used plastic packaging bags are mostly made of polyethylene film, which is non-toxic and can be used to hold food. In the production process of plastic packaging bags, it is necessary to print trademarks or product information on the outside of the packaging bags to enhance the promotion and description of the products.

[0003] At present, when printing codes on packaging bags, the packaging bags need to be fixed on a fixed frame and then moved into a printing machine for printing, which results in low production efficiency and increased production costs.

[0004] Therefore, the present application provides a color printing and coding device for plastic packaging bags to meet the needs. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a color printing and coding device for plastic packaging bags to solve the problem that when coding is currently sprayed on packaging bags, the packaging bags need to be fixed on a fixed frame and then moved into a spray printer for printing, resulting in low production efficiency and increased production costs.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A color printing and coding device for plastic packaging bags comprises a conveyor belt for conveying packaging bags; a fixed seat, which is L-shaped and fixedly arranged relative to the conveyor belt, and a machine box is fixedly connected to the bottom position of the horizontal section of the fixed seat; a movable seat, which is located directly above the conveyor belt, and the top of the movable seat is movably connected to the machine box through two gear rods, a nozzle is provided at the bottom of the movable seat, and the two gear rods are located on the same side of the top of the machine box; a drying component, which is located at the rear section of the fixed seat in the running direction of the conveyor belt, and the drying component comprises a chassis fixed to the side of the fixed seat, and a wind hood connected to the chassis through an air duct, and the wind hood is located directly above the conveyor belt.

[0008] Preferably, it also includes an ink tank connected to the nozzle via a hose and used to provide ink to the nozzle.

[0009] Preferably, a rotating shaft is provided inside the machine box, the rotating shaft is rotatably connected to the side wall of the machine box, and a turbine is provided in the middle of the rotating shaft.

[0010] Preferably, two gears are symmetrically provided on the shaft body at both sides of the turbine, and the two gears are respectively meshed and connected with the two gear rods.

[0011] Preferably, it also includes a driving motor, which is fixedly connected to the bottom position of the horizontal section of the fixed seat through a vertical bracket, and the output end of the driving motor is fixedly connected to a worm, which is located inside the machine box and is arranged vertically to the rotating shaft. The worm is rotatably connected to the side wall of the machine box, and the worm is meshingly connected to the turbine.

[0012] Preferably, it also includes two side bars, which are fixedly connected to the bottom position of the outer end of the horizontal section of the fixed seat in parallel with each other, and a strip guide rail is provided on the inner side of the side bar.

[0013] Preferably, it also includes two sliders, which are fixedly connected to the side of the movable seat away from the gear rod, and the two sliders are respectively slidably connected with the strip guide rails on the two side rods.

[0014] Preferably, it also includes limit members, four of which are distributed in a rectangular array and vertically fixedly connected to the four corner positions on the top of the movable seat. The limit members include a telescopic rod with one end fixedly connected to the bottom of the movable seat, and a pressure plate fixedly connected to the movable end of the telescopic rod. A spring is provided between the pressure plate and the movable seat, and the spring is sleeved on the telescopic rod.

[0015] Preferably, a screen printing plate is provided at the nozzle outlet for providing a coding pattern.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, a conveyor belt is arranged in conjunction with a fixed seat, wherein a movable seat which can move linearly up and down is provided on the fixed seat, and a nozzle for coding is provided under the movable seat, so that the packaging bag can pass smoothly under the coding area, thereby realizing assembly line coding printing, improving coding efficiency, and thus reducing production costs; through the meshing connection between the turbine and the worm gear and the gear and the rack, the transmission accuracy of the driving motor to the movable seat is improved, ensuring that the pressure applied to the packaging bag is the same each time the nozzle is pressed down for printing, so that the printing effect is uniform, and the printing quality is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

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

[0020] Figure 2 for Figure 1 A magnified image of area A;

[0021] Figure 3 This is a schematic diagram of the internal structure of the box of the utility model;

[0022] Figure 4 for Figure 3 Schematic diagram of the structure from another angle.

[0023] In the figure: 1. conveyor belt; 2. fixed seat; 3. drying assembly; 4. ink box; 5. side rod; 6. machine box; 7. gear rod; 8. movable seat; 9. limiter; 10. nozzle; 11. vertical bracket; 12. driving motor; 13. slider; 14. worm; 15. rotating shaft; 16. turbine; 17. gear; 18. screen printing plate.

[0024] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0025] The following is a detailed description of a plastic packaging bag color printing and coding device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art may also adopt other alternative methods to implement them; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0026] like Figure 1 - Figure 4 As shown, the embodiment of the utility model provides a plastic packaging bag color printing and coding device, including a conveyor belt 1, which is driven by a motor and provides conveying power through a pulley mechanism for conveying packaging bags, and the packaging bags move linearly at the top of the conveyor belt; a fixed seat 2, which is an L-shaped structure and is relatively fixedly arranged with the conveyor belt 1, the fixed seat 2 and the conveyor belt 1 are fixedly installed on the same base, and a machine box 6 is fixedly connected to the bottom position of the horizontal section of the fixed seat 2, and the machine box 6 is a rectangular box-shaped structure with an opening facing the lower end; a movable seat 8, which is located directly above the conveyor belt 1, and the top of the movable seat 8 is movably connected to the machine box 6 through two gear rods 7, and a nozzle 10 is provided at the bottom of the movable seat 8, and the two gear rods 7 are located on the same side of the top of the machine box 6; a drying component 3, which is located in the rear section relative to the fixed seat 2 in the running direction of the conveyor belt 1, and the drying component 3 includes a chassis fixed to the side of the fixed seat 2, and a fan for air supply is provided inside the chassis, and a wind hood connected to the chassis through an air duct, and the wind hood is located directly above the conveyor belt 1.

[0027] By arranging a conveyor belt 1 in conjunction with a fixed seat 2, wherein a movable seat 8 capable of linearly moving up and down is provided on the fixed seat 2, and a nozzle 10 for coding is provided below the movable seat 8, the packaging bag can pass smoothly under the coding area, thereby realizing assembly line coding printing, improving coding efficiency, and thus reducing production costs.

[0028] Furthermore, a heating tube may be installed at the air outlet of the hood in the drying component 3 to heat the airflow blown out of the hood, thereby quickly curing the printed ink and improving the drying efficiency.

[0029] like Figure 1 As shown, it also includes an ink tank 4, which is connected to the nozzle 10 through a hose and is used to provide ink to the nozzle 10, wherein a gear pump is provided inside the ink tank 4 for pumping the ink to the nozzle 10, and a material injection port is provided on the top of the ink tank 4 for adding ink.

[0030] like Figure 3 As shown, a rotating shaft 15 is provided inside the machine box 6, and the rotating shaft 15 is rotatably connected to the side wall of the machine box 6, and a turbine 16 is provided in the middle position of the rotating shaft 15; two gears 17 are symmetrically provided on the shaft body of the rotating shaft 15 at both sides of the turbine 16, and the two gears 17 are respectively engaged and connected with the two gear rods 7; it also includes a driving motor 12, which is fixedly connected to the bottom position of the horizontal section of the fixing seat 2 through a hanging bracket 11, and a worm 14 is fixedly connected to the output end of the driving motor 12, and the worm 14 is located inside the machine box 6 and is vertically arranged with the rotating shaft 15, the worm 14 is rotatably connected to the side wall of the machine box 6, and the worm 14 is engaged and connected with the turbine 16.

[0031] The worm 14 is driven to rotate by the driving motor 12, and then the shaft 15 is driven to rotate through the cooperation of the worm 14 and the turbine 16, and the shaft 15 drives the gear 17 to rotate, thereby engaging with the gear rod 7. When the vertical movement of the shaft 15 and the gear 17 is fixed by the machine box 6, the gear rod 7 drives the movable seat 2 to make a linear movement in the vertical direction, thereby realizing the vertical movement of the nozzle 10 for printing.

[0032] like Figure 3 As shown, it also includes side rods 5, two of which are provided, and the two side rods 5 are fixedly connected to the bottom position of the outer end of the horizontal section of the fixed seat 2 in parallel with each other, and a strip guide rail is provided on the inner side of the side rod 5; it also includes sliders 13, two of which are provided and both are fixedly connected to the side of the movable seat 8 away from the gear rod 7, and the two sliders 13 are respectively slidably connected with the strip guide rails on the two side rods 5.

[0033] Through this arrangement, the side of the movable seat 8 away from the support of the gear rod 7 is guided and limited for linear movement, ensuring that the movable seat 8 always maintains a horizontal state and makes linear movements in the up and down directions, thereby ensuring the accuracy of the contact point between the nozzle 10 located at the bottom of the movable seat 8 and the packaging bag, and ensuring the printing quality.

[0034] like Figure 2 As shown, it also includes a limit member 9, which is provided with four and is distributed in a rectangular array and is vertically fixedly connected to the four corner positions on the top of the movable seat 8. The limit member 9 includes a telescopic rod with one end fixedly connected to the bottom of the movable seat 8, and a pressure plate fixedly connected to the movable end of the telescopic rod. A spring is provided between the pressure plate and the movable seat 8, and the spring is sleeved on the telescopic rod.

[0035] With this arrangement, during printing, the bottom pressure plates of the four limiting members 9 contact the four corners of the printing area of ​​the packaging bag before the nozzle 10. As the downward pressure continues, the packaging bag is pressed under the elastic limitation of the spring, thereby preventing the packaging bag from warping or wrinkling during printing, which may lead to printing failure.

[0036] like Figure 2 As shown, a screen printing plate 18 is provided at the outlet of the nozzle 10 for providing a coding pattern.

[0037] The technical solution provided by the utility model is that when the packaging bags are subjected to assembly line printing, the packaging bag raw materials are placed flat on the conveyor belt 1, and the packaging bags are driven to move horizontally at the bottom of the nozzle 10 by the conveyor belt 1, and the conveyor belt 1 is controlled by the program so that each packaging bag is briefly paused when being transported to the printing area. When one of the packaging bags moves to the printing area (i.e., directly below the nozzle 10), the driving motor 12 is started to drive the worm 14 to rotate, and then the driving shaft 15 is driven to rotate through the cooperation of the worm 14 and the turbine 16, and the rotating shaft 15 drives the gear 17 to rotate, thereby engaging with the gear rod 7, driving the movable seat 8 to make a horizontal drop under the limiting action of the guide rails on the slider 13 and the side rod 5, and the bottom pressure plate of the limiting member 9 contacts the four corners of the printing area of ​​the packaging bag before the nozzle 10, and as the downward pressure is continued, within the elastic limit of the spring. The packaging bag is pressed down at the next station, and then the nozzle 10 is attached to the packaging bag, the gear pump is started, and a certain amount of ink is pumped to the outlet of the nozzle 10 through the hose. Under the covering effect of the screen printing plate 18, a preset pattern is sprayed on the surface of the packaging bag, and then the driving motor 12 is reversed to drive the movable seat to reset, and the conveyor belt 1 moves again to move the packaging bag on the next station to the printing area. At the same time, the packaging bag with printing is transported to the wind hood position of the drying component 3 by the conveyor belt 1, and the ink solidification is accelerated by the fast blowing airflow to complete the printing. It is particularly noted that the transmission accuracy of the driving motor 12 to the movable seat 8 is improved through the meshing connection between the turbine 16 and the worm 14 and the gear 17 and the rack 7, so as to ensure that the pressure applied to the packaging bag by the nozzle 10 is the same each time it is pressed down for printing, so that the printing effect is uniform and the printing quality is further improved.

[0038] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A color printing and coding device for plastic packaging bags, characterized in that: include: A conveyor belt (1) for conveying packaging bags; The fixed seat (2) has an L-shaped structure and is relatively fixedly arranged with respect to the conveyor belt (1); the bottom position of the horizontal section of the fixed seat (2) is fixedly connected to an organic box (6); A movable seat (8) is located directly above the conveyor belt (1); the top of the movable seat (8) is movably connected to the machine box (6) via two gear rods (7); a nozzle (10) is provided at the bottom of the movable seat (8); and the two gear rods (7) are located on the same side of the top of the machine box (6); A drying component (3) is located at the rear section of the conveyor belt (1) relative to the fixed seat (2) in the running direction of the conveyor belt (1), and the drying component (3) comprises a chassis fixed to the side of the fixed seat (2), and a wind hood connected to the chassis via an air duct, and the wind hood is located directly above the conveyor belt (1).

2. The color printing and coding device for plastic packaging bags according to claim 1 is characterized in that: It also includes an ink tank (4) connected to the nozzle (10) via a hose and used to provide ink to the nozzle (10).

3. The color printing and coding device for plastic packaging bags according to claim 1 is characterized in that: A rotating shaft (15) is provided inside the machine box (6), the rotating shaft (15) is rotatably connected to a side wall of the machine box (6), and a turbine (16) is provided in the middle of the rotating shaft (15).

4. The color printing and coding device for plastic packaging bags according to claim 3 is characterized in that: Two gears (17) are symmetrically provided on the shaft body of the rotating shaft (15) at two sides of the turbine (16), and the two gears (17) are respectively meshed and connected with the two gear rods (7).

5. The color printing and coding device for plastic packaging bags according to claim 4 is characterized in that: It also includes a driving motor (12) fixedly connected to the bottom position of the horizontal section of the fixing seat (2) through a hanging bracket (11); a worm (14) is fixedly connected to the output end of the driving motor (12); the worm (14) is located inside the machine box (6) and is arranged vertically to the rotating shaft (15); the worm (14) is rotatably connected to the side wall of the machine box (6); and the worm (14) is meshingly connected to the turbine (16).

6. The color printing and coding device for plastic packaging bags according to claim 1 is characterized in that: It also includes side bars (5), two of which are provided, and the two side bars (5) are fixedly connected to the bottom of the outer end of the horizontal section of the fixing seat (2) in a parallel manner, and a strip guide rail is provided at the inner side of the side bar (5).

7. The color printing and coding device for plastic packaging bags according to claim 6 is characterized in that: It also includes two sliders (13), both of which are fixedly connected to the movable seat (8) at a side away from the gear rod (7), and the two sliders (13) are respectively slidably connected to the strip guide rails on the two side rods (5).

8. The color printing and coding device for plastic packaging bags according to claim 1 is characterized in that: It also includes four limiting members (9) which are arranged in a rectangular array and are vertically fixedly connected to four corner positions on the top of the movable seat (8). The limiting member (9) includes a telescopic rod with one end fixedly connected to the bottom of the movable seat (8), and a pressure plate fixedly connected to the movable end of the telescopic rod. A spring is provided between the pressure plate and the movable seat (8), and the spring is sleeved on the telescopic rod.

9. The color printing and coding device for plastic packaging bags according to claim 1, characterized in that: A screen printing plate (18) is provided at the outlet of the nozzle (10) for providing a coding pattern.

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