A plastic packaging bag printing device with a deviation prevention mechanism

Abstract

The utility model discloses a plastic packaging bag printing equipment with anti -drifting mechanism, including the positioning board, is set two groups of anti -drifting roller groups through the symmetry in the positioning board top, and the plastic packaging bag of printing is waiting to be set up in the outer surface of anti -drifting roller group, and two groups of anti -drifting roller groups are located printing device body's feed port and discharge port one side respectively, and this structure design can carry out double positioning and orientation to the plastic packaging bag before entering printing device body and after completing printing, guarantee the stability of printing quality, in addition, in drying treatment aspect, two groups hollow drying roller are installed in the positioning board top through the rotating seat, cooperate the heating assembly of positioning board bottom for providing the hot gas source to drying roller inside and the power component for driving drying roller rotation of rotating seat one side, formed the high -efficient drying system, can realize the quick, even drying of printing pattern, is favorable to further improved the overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of plastic packaging bag printing technology, specifically to a plastic packaging bag printing device with an anti-deviation mechanism. Background Technology

[0002] With the rapid development of the modern packaging industry, plastic packaging bags are widely used in the packaging of goods in the food, daily chemical, pharmaceutical, and electronics industries due to their advantages such as lightweight, low cost, and strong plasticity. In the production process of plastic packaging bags, the printing process is one of the core processes, and its quality directly affects the product appearance and market competitiveness.

[0003] However, due to the thinness, smooth surface, and easy stretching and deformation of plastic film materials (such as PE, PP, BOPP, etc.), they are prone to deviation problems during high-speed printing due to tension fluctuations, mechanical vibrations, or material deformation. Therefore, we need to propose a plastic packaging bag printing equipment with an anti-deviation mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a plastic packaging bag printing equipment with an anti-deviation mechanism. By setting two sets of anti-deviation rollers and a hollow drying roller that integrates heating and power components, and integrating them on a positioning plate, the equipment effectively prevents deviation during plastic packaging bag printing, can quickly and evenly dry the printed pattern, and is compact and efficient as a whole, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic packaging bag printing device with an anti-deviation mechanism includes: a positioning plate with two sets of anti-deviation rollers symmetrically arranged on its top; a plastic packaging bag to be printed is wrapped around the outer surface of the anti-deviation rollers; a printing device body is installed on the top of the positioning plate; and the two sets of anti-deviation rollers are respectively arranged on one side of the inlet and outlet of the printing device body.

[0007] Two sets of hollow drying rollers are respectively mounted on the top of the positioning plate via rotating seats. The bottom of the positioning plate is provided with a heating component for providing a heat source to the interior of the drying rollers, and one side of the rotating seat is provided with a power component for rotating the drying rollers.

[0008] Preferably, the anti-deviation roller group includes two sets of mounting frames, and two sets of guide rollers are rotatably mounted between the two sets of mounting frames.

[0009] Preferably, the two sets of guide rollers are arranged in a conical shape.

[0010] Preferably, the heating assembly includes an electric heating box, which is fixedly installed at the bottom of the positioning plate. A fan is fixedly connected to one side of the electric heating box, and a three-way pipe is fixedly connected to the other side of the electric heating box. The two ends of the three-way pipe are respectively connected to the exposed ends of the drying roller.

[0011] Preferably, the exposed end of the drying roller is connected to a rotary air passage connector, and the three-way pipe is connected to the inner cavity of the drying roller through the rotary air passage connector.

[0012] Preferably, the power assembly includes a drive motor, which is fixedly mounted on one side wall of the rotating seat. One end of the output shaft of the drive motor is fixedly connected to a drive gear, and a driven gear meshes with the top of the drive gear. The driven gear is fixedly sleeved on the exposed end of the drying roller.

[0013] Preferably, the drying roller body is made of a metal material with high thermal conductivity.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features two sets of anti-deviation rollers symmetrically arranged on the top of a positioning plate. The plastic packaging bag to be printed is wrapped around the outer surface of the anti-deviation roller sets, with the two sets of anti-deviation rollers located on the inlet and outlet sides of the printing device body, respectively. This structural design provides dual positioning and guidance for the plastic packaging bag before it enters the printing device body and after printing, effectively limiting the lateral deviation of the plastic packaging bag during transport and ensuring that it passes through the printing device body in a stable posture. This greatly improves the accuracy of the printing position and ensures the stability of the printing quality. In addition, for drying, two sets of hollow drying rollers are mounted on the top of the positioning plate via a rotating seat. Together with the heating component at the bottom of the positioning plate for providing a heat source to the inside of the drying rollers and the power component on one side of the rotating seat for driving the drying rollers to rotate, a highly efficient drying system is formed. This system enables rapid and uniform drying of the printed pattern, further improving overall production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the axial side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the drying roller, power assembly, and heating assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the anti-deviation roller assembly of this utility model.

[0020] In the diagram: 1. Positioning plate; 2. Anti-deviation roller assembly; 201. Mounting frame; 202. Guide roller; 3. Printing device body; 4. Drying roller; 5. Rotating seat; 6. Heating assembly; 601. Electric heating box; 602. Fan; 603. T-pipe; 7. Power assembly; 701. Drive motor; 702. Drive gear; 703. Driven gear; 8. Rotary air passage connector. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution:

[0023] A plastic packaging bag printing device with an anti-deviation mechanism includes a positioning plate 1, which serves as the basic load-bearing structure of the device, providing a stable mounting platform for each component. Two sets of anti-deviation rollers 2 are symmetrically arranged on the top of the positioning plate 1. The plastic packaging bag to be printed is wound around the outer surface of the anti-deviation rollers 2. A printing device body 3 is mounted on the top of the positioning plate 1. The two sets of anti-deviation rollers 2 are respectively positioned at the inlet and outlet of the printing device body 3. By setting two sets of anti-deviation rollers 2 at the inlet and outlet of the printing device body 3, bidirectional positioning of the plastic packaging bag as it enters and exits the printing device is achieved, reducing transmission deviation. This bidirectional positioning design ensures the accuracy of the plastic packaging bag's position before it enters the printing device, avoiding printing errors due to initial positional deviations. Simultaneously, it maintains stable transmission after printing, laying a good foundation for subsequent drying and other processes.

[0024] The anti-deviation roller assembly 2 includes two sets of mounting frames 201, which are vertically fixed to the top of the positioning plate 1. Two sets of guide rollers 202 are rotatably mounted between the two sets of mounting frames 201. The two sets of guide rollers 202 are tapered, with their diameters gradually increasing from both ends towards the middle. By setting the tapered guide rollers 202, the guiding effect of their conical surfaces is utilized to automatically correct lateral deviation during the transport of plastic packaging bags, ensuring that they move along a preset path. The mounting frames 201 are made of high-strength steel, which can stably support the guide rollers 202 and prevent shaking even during high-speed transport. The surface of the guide rollers 202 is smoothed to reduce friction with the plastic packaging bags and avoid damage to them.

[0025] Two sets of hollow drying rollers 4 are mounted on the top of the positioning plate 1 via a rotating seat 5. The two sets of hollow drying rollers 4 are located behind the anti-deviation roller group 2 on one side of the discharge port of the printing device body 3, and are used to dry the printed plastic packaging bags. A heating component 6 is provided at the bottom of the positioning plate 1. The heating component 6 is used to provide a hot air source to the inside of the drying rollers 4. The heating component 6 includes an electric heating box 601, which is fixedly installed at the bottom of the positioning plate 1. It is equipped with an electric heating wire inside, which can heat the air to a preset temperature. A fan 602 is fixedly connected to one side of the electric heating box 601. The fan 602 is used to deliver cold air into the electric heating box 601. A three-way pipe 603 is fixedly connected to the other side of the electric heating box 601. The two ends of the three-way pipe 603 are respectively connected to the exposed ends of the two sets of drying rollers 4 to realize the diversion and delivery of hot air. By setting up a heating assembly 6 consisting of an electric heating box 601, a fan 602, and a three-way pipe 603, a stable heat source is provided to the two sets of drying rollers 4, ensuring uniform drying temperature. The power of the electric heating wire in the electric heating box 601 can be adjusted according to actual needs to control the heating temperature. The wind speed of the fan 602 can also be adjusted to ensure the stability of the heat supply. The three-way pipe 603 is made of high-temperature resistant material, which can withstand the high temperature of the hot air without being easily damaged.

[0026] The exposed end of the drying roller 4 is connected to a rotary air passage connector 8, and the three-way pipe 603 communicates with the inner cavity of the drying roller 4 through the rotary air passage connector 8. The rotary air passage connector 8 maintains a sealed air passage during the rotation of the drying roller 4, preventing hot air leakage. By setting the rotary air passage connector 8, the stable delivery of hot air during the rotation of the drying roller 4 is achieved, preventing hot air leakage from affecting drying efficiency. The rotary air passage connector 8 has good sealing and wear resistance, enabling long-term stable operation and reducing the frequency and cost of equipment maintenance.

[0027] A power assembly 7 is provided on one side of the rotating base 5 to drive the drying roller 4 to rotate. The power assembly 7 includes a drive motor 701, which is fixedly mounted on one side wall of the rotating base 5. One end of its output shaft is fixedly connected to a drive gear 702, and a driven gear 703 meshes with the top of the drive gear 702. The driven gear 703 is fixedly sleeved on the exposed end of the drying roller 4. When the drive motor 701 starts, the drive gear 702 drives the driven gear 703 to rotate, thereby driving the drying roller 4 to rotate around its own axis. By setting up the power assembly 7, which consists of the drive motor 701, the drive gear 702, and the driven gear 703, the drying roller 4 is driven to rotate stably, ensuring full contact with the plastic packaging bag and improving the drying effect. The drive motor 701 is a variable frequency motor, which can adjust the speed according to the conveying speed of the plastic packaging bag, so that the rotation of the drying roller 4 matches the conveying of the plastic packaging bag. Both the drive gear 702 and the driven gear 703 are high-precision gears, with precise meshing and smooth transmission, reducing noise and energy loss in the transmission process.

[0028] The main body of the drying roller 4 is made of a metal material with high thermal conductivity (such as aluminum alloy or copper alloy). This material can quickly transfer the heat from the inner cavity to the outer surface, ensuring efficient heating and drying of the printed pattern. By using a drying roller 4 made of a metal material with high thermal conductivity, the rapid conduction of heat is achieved, increasing the drying speed of the printed pattern. The outer surface of the drying roller 4 undergoes special treatment, making it not only smooth and flat but also possessing a certain degree of wear resistance and corrosion resistance, extending its service life and preventing scratches on the surface of the plastic packaging bag.

[0029] Working Principle: The plastic packaging bag to be printed is first conveyed to the anti-deviation roller group 2 on one side of the inlet of the printing device body 3, and wound between two sets of conical guide rollers 202. During the transmission process, the conical guide rollers 202 use their conical surface action to automatically correct the plastic packaging bag, preventing lateral deviation and ensuring that the plastic packaging bag enters the printing device body 3 in an accurate position for printing. After printing, the plastic packaging bag is output from the outlet of the printing device body 3 and is repositioned and guided by the anti-deviation roller group 2 on the other side to ensure its stable position during subsequent transmission. Subsequently, the plastic packaging bag is conveyed to two sets of hollow drying rollers 4 and wound around the outer surface of the drying rollers 4. At this time, the heating component 6 starts to work, and the fan 602 sends outside cold air into the electric heating box 601. The electric heating wire in the electric heating box 601 heats the cold air to form hot air. The hot air is delivered to two rotary air passage joints 8 through the three-way pipe 603, and then enters the inner cavity of the drying roller 4 through the rotary air passage joints 8. Simultaneously, the drive motor 701 in the power assembly 7 starts, driving the drive gear 702 to rotate. The drive gear 702 drives the driven gear 703, which in turn drives the drying roller 4 to rotate around its own axis. Because the drying roller 4 is made of a metal material with high thermal conductivity, it can quickly transfer heat from the inner cavity to the outer surface. During the rotation of the drying roller 4, its outer surface is in full contact with the plastic packaging bag, transferring heat to the printed pattern on the plastic packaging bag, achieving rapid and uniform drying. After drying, the plastic packaging bag is conveyed to the next process. Throughout the process, the anti-deviation mechanism and the drying mechanism work together to ensure printing accuracy and improve production efficiency.

[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic packaging bag printing device with an anti-deviation mechanism, characterized in that, include: The positioning plate (1) has two sets of anti-deviation roller groups (2) symmetrically arranged on its top. The plastic packaging bag to be printed is wrapped around the outer surface of the anti-deviation roller group (2). The top of the positioning plate (1) is equipped with the printing device body (3). The two sets of anti-deviation roller groups (2) are respectively arranged on the inlet and outlet side of the printing device body (3). Two sets of hollow drying rollers (4) are respectively installed on the top of the positioning plate (1) via rotating seats (5). The bottom of the positioning plate (1) is provided with a heating component (6) for providing a heat source to the interior of the drying rollers (4). A power component (7) for rotating the drying rollers (4) is provided on one side of the rotating seat (5).

2. The plastic packaging bag printing equipment with an anti-deviation mechanism according to claim 1, characterized in that: The anti-deviation roller group (2) includes two sets of mounting brackets (201), and two sets of guide rollers (202) are rotatably mounted between the two sets of mounting brackets (201).

3. The plastic packaging bag printing equipment with an anti-deviation mechanism according to claim 2, characterized in that: The two sets of guide rollers (202) are arranged in a conical shape.

4. The plastic packaging bag printing equipment with an anti-deviation mechanism according to claim 1, characterized in that: The heating assembly (6) includes an electric heating box (601), which is fixedly installed at the bottom of the positioning plate (1). A fan (602) is fixedly connected to one side of the electric heating box (601), and a three-way pipe (603) is fixedly connected to the other side of the electric heating box (601). The two ends of the three-way pipe (603) are respectively connected to the exposed ends of the drying roller (4).

5. A plastic packaging bag printing equipment with an anti-deviation mechanism according to claim 4, characterized in that: The exposed end of the drying roller (4) is connected to a rotary air connector (8), and the three-way pipe (603) is connected to the inner cavity of the drying roller (4) through the rotary air connector (8).

6. A plastic packaging bag printing equipment with an anti-deviation mechanism according to claim 1, characterized in that: The power assembly (7) includes a drive motor (701), which is fixedly mounted on one side wall of the rotating seat (5). One end of the output shaft of the drive motor (701) is fixedly connected to a drive gear (702), and a driven gear (703) meshes with the top of the drive gear (702). The driven gear (703) is fixedly sleeved on the exposed end of the drying roller (4).

7. A plastic packaging bag printing device with an anti-deviation mechanism according to claim 1, characterized in that: The main body of the drying roller (4) is made of a metal material with high thermal conductivity.

Images