Adjustable plastic packaging bag printing device

Abstract

The utility model discloses an adjustable plastic packaging bag printing device, which belongs to the technical field of packaging bag printing devices and comprises a machine tool, a driving motor and a conveying belt are mounted on the machine tool, the output end of the driving motor is coaxially and fixedly connected with the input end of the conveying belt, and the conveying belt is used for conveying plastic packaging bags. The lifting device is installed on the side portion of the machine tool, an adjusting plate is installed at the output end of the lifting device, and the lifting device is used for controlling the height position of the adjusting plate; and the printing mechanism comprises a movable lead screw, the movable lead screw is installed on the adjusting plate, and the output end of the movable lead screw is connected with an installing machine and an installing plate. By arranging the printing mechanism, when the packaging bag moves to the position below the printing plate, the corona arc-shaped needle works to conduct corona treatment on the surface of the packaging bag, the roughness and polarity of the surface of the packaging bag can be improved through corona treatment, the surface energy of the packaging bag is improved, ink can be wetted and attached more easily, and the subsequent printing effect is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of packaging bag printing equipment, and in particular relates to an adjustable plastic packaging bag printing device. Background Technology

[0002] Plastic packaging bags are packaging bags made of plastic and are widely used for packaging various products in production and daily life. During printing, plastic packaging bags are mainly printed using a printing plate, through which ink is passed onto the packaging bag. However, because the material of the packaging bags is relatively soft, it is not easy to print patterns onto them.

[0003] In the existing technology, the tension of the front and back sides of the plastic packaging bag is adjusted by the first tension adjustment device and the second tension adjustment device to make the plastic packaging bag taut before printing. In this method, the surface of the packaging bag cannot be pre-treated, the adhesion of ink on the packaging bag cannot be improved, the printing effect is reduced, and the freshly printed packaging bag is not destaticated and dried, which increases the subsequent processing work. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable plastic packaging bag printing device to solve the problem that in the traditional method of adjusting the tightness of the front and back sides of the plastic packaging bag by using a first and second tension adjustment device to tighten the plastic packaging bag before printing, the surface of the packaging bag cannot be pre-treated, the adhesion of ink on the packaging bag cannot be improved, and the printing effect is reduced.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable plastic packaging bag printing device, comprising:

[0007] A machine tool, wherein a drive motor and a conveyor belt are installed on the machine tool, the output end of the drive motor is coaxially and fixedly connected to the input end of the conveyor belt, and the conveyor belt is used to transport plastic packaging bags.

[0008] A lifting device is installed on the side of the machine tool, and an adjustment plate is installed at the output end. The lifting device is used to control the height position of the adjustment plate.

[0009] The printing mechanism includes a movable lead screw mounted on an adjusting plate, with its output end connected to an mounting machine and a mounting plate. Both the mounting machine and the mounting plate are slidably connected to the adjusting plate. A hydraulic push rod is mounted on the mounting machine, and a printer is fixedly connected to its output end. A printing plate is clamped and fixedly connected to the mounting plate, and an electrostatic discharge (ESD) needle and an antistatic fan are mounted at its bottom. The ESD needle and the ESD fan are located on both sides of the printing plate, with the ESD needle positioned in front of the conveyor belt and both pointing directly towards the plastic packaging bags at the conveyor belt's output end. The printer is located above the printing plate.

[0010] Preferably, the adjusting plate has a sliding groove, and the installation machine is slidably connected in the sliding groove.

[0011] Preferably, both ends of the mounting plate are connected to movable blocks, and both movable blocks are threadedly connected to the output end of the movable lead screw, and the mounting plate is movably mounted on the two movable blocks.

[0012] Preferably, a positioning sensor is installed on the mounting plate on the side in front of the conveyor. The positioning sensor is used to check whether a packaging bag has passed by. The positioning sensor and the moving block are electrically connected to a controller. The controller is installed on the machine tool and receives the signal from the positioning sensor to control the working state of the moving block.

[0013] Preferably, both the corona arc needle and the antistatic blower adopt existing technologies. The corona arc needle is used to perform corona treatment on the surface of the packaging bag. Multiple air blowing pipes are fixedly connected to the bottom of the mounting plate. The input end of the air blowing pipe is connected to the output end of an external inert gas source, and the output end points to the output end of the corona arc needle. The antistatic blower is used to remove static electricity and dry the printed packaging bag.

[0014] Preferably, the mounting plate is equipped with two fixable clamps, which are pressed and fixed to the printing plate. The mounting plate is also equipped with multiple fixing buttons for fixing the two clamps.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, by setting up a printing mechanism, when the packaging bag moves under the printing plate, the corona arc needle works to perform corona treatment on the surface of the packaging bag. The corona treatment can increase the roughness and polarity of the packaging bag surface, improve its surface energy, make the ink easier to wet and adhere, and improve the subsequent printing effect. When the printed packaging bag continues to move forward, the electrostatic fan is started to remove static electricity and dry the freshly printed packaging bag to prevent residual charge from affecting subsequent processing, and increase the function of the device to prepare for subsequent work.

[0017] 2. In this utility model, by setting up a lifting device, the height adjustment range of the adjustment plate is increased. By setting up a moving screw, the movement range of the mounting plate can be adjusted, and the movement of the printer on the mounting machine can be controlled to complete the printing work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall isometric structure of an adjustable plastic packaging bag printing device proposed in this utility model.

[0019] Figure 2 This is a schematic diagram of the lifting device and adjustment plate structure of an adjustable plastic packaging bag printing device proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the antistatic fan and corona arc needle structure of an adjustable plastic packaging bag printing device proposed in this utility model;

[0021] Figure 4 for Figure 3 Enlarged diagram of part A in the middle.

[0022] In the diagram: 1 Machine tool, 2 Drive motor, 3 Conveyor belt, 4 Lifting device, 5 Adjusting plate, 6 Moving lead screw, 7 Slide groove, 8 Mounting machine, 9 Hydraulic push rod, 10 Printer, 11 Moving block, 12 Mounting plate, 13 Clamping plate, 14 Fixed button, 15 Antistatic fan, 16 Corona-electrode arc needle, 17 Positioning sensor, 18 Blower. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 An adjustable plastic packaging bag printing device, comprising:

[0025] Machine tool 1 is equipped with drive motor 2 and conveyor belt 3. The output end of drive motor 2 is coaxially and fixedly connected to the input end of conveyor belt 3. Conveyor belt 3 is used to transport plastic packaging bags.

[0026] Lifting device 4 is installed on the side of machine tool 1, and an adjustment plate 5 is installed at the output end. Lifting device 4 is used to control the height position of adjustment plate 5.

[0027] The printing mechanism includes a movable lead screw 6, which is mounted on an adjusting plate 5 and has an output end connected to an mounting machine 8 and a mounting plate 12. Both the mounting machine 8 and the mounting plate 12 are slidably connected to the adjusting plate 5. A hydraulic push rod 9 is mounted on the mounting machine 8, and a printer 10 is fixedly connected to the output end of the hydraulic push rod 9. A printing plate is clamped and fixedly connected to the mounting plate 12, and an electrostatic discharger 16 and an antistatic blower 15 are mounted at the bottom. The electrostatic discharger 16 and the antistatic blower 15 are located on both sides of the printing plate, with the electrostatic discharger 16 being in front of the conveyor and both of them having their output directions facing the plastic packaging bags on the output end of the conveyor belt 3. The printer 10 is located above the printing plate.

[0028] The adjusting plate 5 has a sliding groove 7, and the mounting machine 8 is slidably connected in the sliding groove 7.

[0029] Both ends of the mounting plate 12 are connected to movable blocks 11. Both movable blocks 11 are threadedly connected to the output end of the movable lead screw 6. The mounting plate 12 is movably mounted on the two movable blocks 11.

[0030] A positioning sensor 17 is installed on the mounting plate 12 on the front side of the conveyor. The positioning sensor 17 is used to check whether a packaged bag has passed by. The positioning sensor 17 and the moving block 11 are both electrically connected to a controller. The controller is installed on the machine tool 1 and receives the signal from the positioning sensor 17 to control the working state of the moving block 11.

[0031] Both the corona arc needle 16 and the antistatic blower 15 adopt existing technologies. The corona arc needle 16 is used to perform corona treatment on the surface of the packaging bag. Multiple air blowing pipes 18 are fixedly connected to the bottom of the mounting plate 12. The input end of the air blowing pipe 18 is connected to the output end of the external inert gas source, and the output end points to the output end of the corona arc needle 16. The antistatic blower 15 is used to remove static electricity and dry the printed packaging bag.

[0032] The mounting plate 12 is equipped with two fixable clamps 13, which are pressed and fixed to the printing plate. The mounting plate 12 is also equipped with multiple fixing buttons 14 for fixing the two clamps 13.

[0033] The operating principle of this utility model is described as follows:

[0034] In this utility model, the required printing plate is clamped in the middle of the mounting plate 12 using the clamping plate 13. After clamping, the fixing button 14 is pressed to fix the printing plate so that printing can be carried out later.

[0035] With the operation of machine tool 1 and drive motor 2, conveyor belt 3 begins to move, and plastic packaging bags begin to move on conveyor belt 3. Lifting device 4 allows adjustment plate 5 to be adjusted significantly, and moving screw 6 can adjust the left and right position of mounting plate 12 to adapt to different printing needs; when positioning sensor 17 detects packaging bag, moving block 11 controls mounting plate 12 to make slight up and down displacement, so that mounting plate 12 is closer to packaging bag;

[0036] The corona arc needle 16 is activated to perform corona treatment on the surface of the packaging bag. Corona treatment can increase the roughness and polarity of the packaging bag surface, improve its surface energy, make the ink easier to wet and adhere, and improve the subsequent printing effect. The arc-shaped design can make the electric field distribution more uniform, and avoid the electric field intensity being too high at the tip of the electrode, which could lead to local over-discharge or breakdown.

[0037] Furthermore, during corona treatment, some inert gas is introduced into the corona treatment area through the blower 18. After ionization under the action of the electric field, a more stable plasma environment can be generated, which helps to improve the corona treatment effect on the plastic surface and make the polar groups on the plastic surface increase more uniformly.

[0038] When the packaging bag moves below the printer 10, the conveyor belt 3 stops operating, the printing plate descends again to adhere to the packaging bag, the hydraulic push rod 9 is activated to allow the printer 10 to adhere to the printing plate, and the printer 10 is moved from left to right by the moving lead screw 6 to complete the printing work.

[0039] After printing, lift the printing plate and start the conveyor belt 3 to allow the printed packaging bags to continue moving forward. When the conveyor belt is close to the left side of the mounting plate 12, start the anti-static fan 15 to remove static electricity from the freshly printed packaging bags to prevent residual charge from affecting subsequent processing and drying, thus increasing the functionality of the device and preparing for subsequent work.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable plastic packaging bag printing device, characterized in that, include: Machine tool (1), on which a drive motor (2) and a conveyor belt (3) are installed, the output end of the drive motor (2) is coaxially fixedly connected to the input end of the conveyor belt (3), and the conveyor belt (3) is used to convey plastic packaging bags; Lifting device (4), the lifting device (4) is installed on the side of the machine tool (1) and an adjustment plate (5) is installed at the output end. The lifting device (4) is used to control the height position of the adjustment plate (5). The printing mechanism includes a movable lead screw (6), which is mounted on an adjusting plate (5) and has an output end connected to an installation machine (8) and an installation plate (12). The installation machine (8) and the installation plate (12) are slidably connected to the adjusting plate (5). A hydraulic push rod (9) is mounted on the installation machine (8), and a printer (10) is fixedly connected to the output end of the hydraulic push rod (9). A printing plate is clamped and fixedly connected to the installation plate (12), and an electrostatic arc needle (16) and an antistatic fan (15) are mounted at the bottom. The electrostatic arc needle (16) and the antistatic fan (15) are located on both sides of the printing plate. The electrostatic arc needle (16) is in front of the conveyor, and both of them are output in the direction of the plastic packaging bag on the output end of the conveyor belt (3). The printer (10) is located above the printing plate.

2. The adjustable plastic packaging bag printing device according to claim 1, characterized in that, in: The adjusting plate (5) has a sliding groove (7), and the installation machine (8) is slidably connected in the sliding groove (7).

3. The adjustable plastic packaging bag printing device according to claim 1, characterized in that, in: The mounting plate (12) is connected to two movable blocks (11) at both ends. The two movable blocks (11) are threadedly connected to the output end of the movable screw (6). The mounting plate (12) is movably mounted on the two movable blocks (11).

4. The adjustable plastic packaging bag printing device according to claim 3, characterized in that, in: The mounting plate (12) is equipped with a positioning sensor (17) on the front side of the conveyor. The positioning sensor (17) is used to check whether a packaged bag has passed by. The positioning sensor (17) and the moving block (11) are electrically connected to a controller. The controller is installed on the machine tool (1). The controller receives the signal from the positioning sensor (17) to control the working state of the moving block (11).

5. The adjustable plastic packaging bag printing device according to claim 1, characterized in that, in: The corona arc needle (16) and the antistatic blower (15) both adopt existing technology. The corona arc needle (16) is used to corona treat the surface of the packaging bag. The bottom of the mounting plate (12) is fixedly connected with multiple air pipes (18). The input end of the air pipe (18) is connected to the output end of the external inert gas source, and the output end points to the output end of the corona arc needle (16). The antistatic blower (15) is used to remove static electricity and dry the printed packaging bag.

6. The adjustable plastic packaging bag printing device according to claim 1, characterized in that, in: The mounting plate (12) is equipped with two fixable clamps (13), which are pressed and fixed to the printing plate. The mounting plate (12) is equipped with multiple fixing buttons (14), which are used to fix the two clamps (13).

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