Plastic woven bag surface printing and drying device

Abstract

The utility model relates to the technical field of plastic woven bag processing, and disclose a plastic woven bag surface after printing drying device, including conveyer, the upper surface fixed mounting of conveyer has installed frame, the below of installed frame is provided with two drying lamps, the upper surface fixed mounting of installed frame has two cylinder assemblies, the lower end of two cylinder assemblies all penetrates to the inside, two drying lamps respectively with two cylinder assemblies fixed connection, auxiliary mechanism sets up in installed frame, auxiliary mechanism includes threaded rod and collection pipeline, threaded rod rotatory mounting is installed in the front and back inner wall lower extreme of installed frame, through motor drive threaded rod rotates, makes collection pipeline and exhaust pipeline back and forth reciprocating movement, can comprehensive coverage drying area, even discharge after printing woven bag volatilization solvent gas, the exhaust of collection pipeline's movement can be more fast discharge harmful volatile gas, reduce workshop in peculiar smell and harmful gas concentration to improve the use effect of this drying device.

Description

Technical Field

[0001] This utility model relates to the field of plastic woven bag processing technology, specifically to a drying device for printing on the surface of plastic woven bags. Background Technology

[0002] Plastic woven bags, also known as snake-skin bags, are a common type of plastic packaging product. They are made primarily from chemical plastics such as polyethylene and polypropylene, which are extruded and stretched into flat filaments, then woven, braided, and made into bags. These packaging materials are lightweight and durable, made from lightweight materials, and are abrasion-resistant, making them easy to carry and transport. They are also highly corrosion-resistant, unaffected by air humidity, and effectively isolate water and dust, protecting goods. They are widely used in packaging industrial and agricultural products, food packaging, and tourism transportation products.

[0003] Currently, when drying plastic woven bags after ink printing, the evaporation of ink solvents may produce odors. The drying device needs to be equipped with an exhaust pipe to discharge volatile gases. However, the exhaust pipes in existing drying devices are usually fixed in a designated location, which can only quickly draw out solvent evaporation gases in the surrounding area. For the woven bag printing area far from the exhaust pipe, the suction force is low, resulting in low gas discharge efficiency, which is not conducive to the use of the drying device. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a drying device for printing on the surface of plastic woven bags. It solves the problem that in existing drying devices, the exhaust pipe is usually fixed in a designated position, which can only quickly draw out solvent evaporation gas in the surrounding area. For the woven bag printing area far from the exhaust pipe, the suction force is low, resulting in low gas discharge efficiency, which is not conducive to the use of the drying device.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a drying device for printing on the surface of a plastic woven bag, including a conveyor, a mounting frame fixedly installed on the upper surface of the conveyor, two drying lamps arranged below the mounting frame, two cylinder assemblies fixedly installed on the upper surface of the mounting frame, the lower ends of the two cylinder assemblies penetrating into the interior, and the two drying lamps fixedly connected to the two cylinder assemblies respectively. An auxiliary mechanism is installed inside the mounting frame. The auxiliary mechanism includes a threaded rod and a collection pipe. The threaded rod is rotatably installed on the lower end of the front and rear inner walls of the mounting frame. A connecting plate is threaded onto the outer surface of the threaded rod. The collection pipe is fixedly installed on the lower end of the connecting plate. A guide rod is fixedly installed on the lower end of the front and rear inner walls of the mounting frame. The guide rod is located above the threaded rod. A first circular hole is opened at the upper end of the connecting plate. The guide rod is slidably connected to the inside of the first circular hole.

[0006] Preferably, the auxiliary mechanism further includes an exhaust pipe, a second circular hole is provided on the front surface of the mounting bracket, the exhaust pipe is slidably inserted into the inside of the second circular hole, the rear end of the exhaust pipe is fixedly connected to the collection pipe, and the exhaust pipe and the collection pipe communicate with each other.

[0007] Preferably, the lower end of the outer surface of the collection pipe has multiple collection holes.

[0008] Preferably, a motor is fixedly mounted on the rear surface of the mounting bracket, and the output end of the motor rotates through the interior of the mounting bracket, with the motor fixedly connected to the threaded rod.

[0009] Preferably, the upper surface of the mounting bracket is provided with four limiting holes, and a limiting rod is slidably installed inside each of the four limiting holes. The lower ends of the four limiting rods are respectively fixedly connected to the corresponding drying lamps.

[0010] Preferably, a connecting hose is inserted into the inner front end of the exhaust pipe.

[0011] Preferably, the guide rod can be a round rod.

[0012] Preferably, the guide rod can also be a cleaning pipe with a water outlet hole on its lower surface, and both ends of the cleaning pipe are fixedly connected to connecting pipes.

[0013] (III) Beneficial Effects Compared with the prior art, the present invention provides a drying device for printing on the surface of plastic woven bags, which has the following beneficial effects: 1. The drying device for printing on the surface of plastic woven bags uses a motor to drive a threaded rod to rotate, causing the collection pipe and exhaust pipe to move back and forth. This allows for complete coverage of the drying area and even discharge of solvent gases volatilized from the printed woven bags. The moving exhaust pipe can also expel harmful volatile gases more quickly, reducing odors and the concentration of harmful gases in the workshop, thereby improving the effectiveness of the drying device. Attached Figure Description

[0014] Figure 1 This is a top view schematic diagram of the overall structure of the drying device for printing on the surface of plastic woven bags according to this utility model. Figure 2 This is a side view of the internal structure of the drying device for printing on the surface of plastic woven bags according to this utility model. Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a cross-sectional view of the guide rod in Embodiment 2 of this utility model.

[0015] In the diagram: 1. Conveyor; 2. Mounting frame; 3. Drying lamp; 4. Cylinder assembly; 5. Threaded rod; 6. Collection pipe; 7. Connecting plate; 8. Guide rod; 9. First circular hole; 10. Exhaust pipe; 11. Second circular hole; 12. Motor; 13. Limiting hole; 14. Limiting rod; 15. Connecting hose; 16. Water outlet; 17. Connecting pipe; 18. Collection hole. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-4 This utility model provides a new technical solution: Conveyor 1: Installed on the horizontal ground of the production workshop, serving as the basic conveying component of the device, it drives the printed plastic woven bags to move at a uniform speed and send them into the drying area below the mounting frame 2, while simultaneously conveying the dried woven bags away from the device. Mounting bracket 2: It is fixedly installed on the upper surface of conveyor 1. The whole frame structure provides a mounting carrier for components such as drying lamp 3, cylinder assembly 4, and auxiliary mechanism, forming a closed drying operation space to ensure drying and exhaust effect. Drying lamp 3: Located below the mounting frame 2, it is fixedly connected to two cylinder assemblies 4 respectively. After being powered on, it generates heat and radiation to dry the ink sprayed on the surface of the woven bag moving on the conveyor 1, so as to promote the rapid evaporation and solidification of the solvent in the ink. Cylinder assembly 4: It is fixedly installed on the upper surface of the mounting frame 2, and its lower end extends into the interior of the mounting frame 2 and is connected to the drying lamp 3. Through the telescopic movement, it drives the drying lamp 3 to move up and down, adjusts the distance between the drying lamp 3 and the surface of the woven bag, and adapts to the drying needs of woven bags of different thicknesses. Threaded rod 5: Rotatably installed on the lower end of the front and rear inner walls of the mounting bracket 2, fixedly connected to the output end of the motor 12, and its outer surface is threadedly connected to the connecting plate 7. It rotates under the drive of the motor 12, converting the rotational motion into the left and right linear motion of the connecting plate 7, providing power for the reciprocating movement of the collection pipe 6. Collection pipe 6: It is fixedly installed at the lower end of the connecting plate 7 and communicates with the interior of the exhaust pipe 10. Multiple second circular holes 11 are opened at the lower end of the outer surface. The solvent gas volatilized after the woven bag is printed is adsorbed through the multiple second circular holes 11 and concentrated into the exhaust pipe 10. Connecting plate 7: The upper end has a first circular hole 9, which is threaded to the threaded rod 5 and slidably connected to the guide rod 8. The lower end is fixedly installed with a collection pipe 6, which serves as a connecting carrier to transmit the rotational power of the threaded rod 5 to the collection pipe 6 and the exhaust pipe 10, thereby driving the two to move left and right synchronously. Guide rod 8: It is fixedly installed on the lower end of the front and rear inner walls of the mounting bracket 2, located above the threaded rod 5, and is slidably connected to the first circular hole 9 of the connecting plate 7. It provides guidance and limit for the left and right movement of the connecting plate 7, avoids the connecting plate 7 from shifting, and ensures the stability of movement. First circular hole 9: It is opened at the upper end of the connecting plate 7 and is slidably connected to the guide rod 8 inside, providing an insertion channel for the guide rod 8. By cooperating with the guide rod 8, it restricts the movement direction of the connecting plate 7 and ensures that it can only move in the left and right directions. Exhaust pipe 10: It is slidably inserted into the second circular hole 11 on the front surface of the mounting bracket 2, and its rear end is fixedly connected to the collection pipe 6 and communicates with it internally. Its front end is inserted into the connecting hose 15, which guides the solvent gas adsorbed by the collection pipe 6 into the connecting hose 15, and finally discharged by the external exhaust device. Second circular hole 11: Opened on the front surface of mounting bracket 2, providing a sliding passage for exhaust pipe 10; Motor 12: It is fixedly installed on the rear surface of the mounting bracket 2. Its output end rotates through the inside of the mounting bracket 2 and is fixedly connected to the threaded rod 5. As a power source, it drives the threaded rod 5 to rotate forward and backward, providing power for the reciprocating motion of the connecting plate 7 and subsequent components. Limiting holes 13: There are four in total, which are opened on the upper surface of the mounting bracket 2. The limiting rod 14 is slidably installed inside, providing a sliding channel for the limiting rod 14. By cooperating with the limiting rod 14, the movement direction of the drying lamp 3 is restricted, ensuring that it can only move vertically up and down. Limiting rods 14: There are four in total. They are slidably installed inside the limiting holes 13. Their lower ends are fixedly connected to the corresponding drying lamps 3. They limit and guide the up and down movement of the drying lamps 3 to prevent the drying lamps 3 from shifting or shaking during the movement, thus ensuring the uniformity of drying. Connecting hose 15: inserted into the front end of the exhaust pipe 10 and connected to the external exhaust equipment, serving as a flexible channel for gas transportation, adapting to the left and right reciprocating movement of the exhaust pipe 10, and simultaneously introducing solvent gas into the external exhaust equipment for processing; Water outlet 16: It is opened on the lower surface of the guide rod 8. When the guide rod 8 is cleaning the pipe, the incoming clean water flows out evenly through the water outlet 16 to rinse and clean the threaded rod 5 inside the mounting bracket 2. Connecting pipe 17: It is fixedly connected to the front and rear ends of the guide rod 8 in the cleaning pipe shape, serving as an access channel for clean water, connecting to an external water source, and providing cleaning water to the guide rod 8.

[0018] Furthermore, the plastic woven bags with the surface printed are placed on conveyor 1, which moves them downwards towards the mounting frame 2 and into the drying area. Depending on the thickness of the woven bags, cylinder assembly 4 is activated, causing the drying lamp 3 to move up and down, adjusting the distance between the drying lamp 3 and the surface of the woven bag. Simultaneously, the limiting rod 14 slides within the limiting hole 13, guiding the drying lamp 3 and ensuring its stable movement. Motor 12 is then activated, causing the threaded rod 5 to rotate. Since the connecting plate 7 is threadedly connected to the threaded rod 5 and slidably connected to the guide rod 8, the rotation of the threaded rod 5 drives... The connecting plate 7, collecting pipe 6, and exhaust pipe 10 move slowly along the guide rod 8. By rotating the motor 12 in both directions, it moves back and forth. Multiple collecting holes 18 at the lower end of the collecting pipe 6 can evenly absorb the solvent gas that evaporates after printing. The gas is discharged by the external exhaust equipment through the collecting pipe 6, exhaust pipe 10, and connecting hose 15. As the woven bag moves on the conveyor 1, it is dried by the drying lamp 3 and then leaves the device, completing the entire drying operation. When the device needs to be cleaned later, the staff can enter the inside of the mounting frame 2 to clean the threaded rod 5.

[0019] The motor drives the threaded rod to rotate, causing the collection pipe and exhaust pipe to move back and forth, which can fully cover the drying area and evenly discharge the solvent gas volatilized from the woven bags after printing. The moving exhaust pipe can discharge harmful volatile gases more quickly, reducing the concentration of odors and harmful gases in the workshop, thereby improving the effectiveness of the drying device.

[0020] Example 1 (for reference) Figure 2 ) When the guide rod 8 is a round rod, the round rod-shaped guide rod 8 provides stable guidance for the movement of the connecting plate 7, ensuring that the collection pipe 6 and the exhaust pipe 10 do not deviate or shake when they reciprocate left and right, so that the solvent gas adsorption is more uniform, ensuring exhaust efficiency, while the structure is simple and maintenance is convenient. Example 2 (for reference) Figure 4 ) When the guide rod 8 is a cleaning pipe with a water outlet 16 on its lower surface, in a cleaning scenario, a suitable cleaning agent can be introduced through the two connecting pipes 17 to flush the threaded rod 5 inside the device, saving cleaning time and labor costs.

[0021] 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 drying device for printing on the surface of plastic woven bags, comprising a conveyor (1), a mounting frame (2) fixedly installed on the upper surface of the conveyor (1), and two drying lamps (3) arranged below the mounting frame (2), characterized in that: Two cylinder assemblies (4) are fixedly installed on the upper surface of the mounting bracket (2). The lower ends of the two cylinder assemblies (4) penetrate into the interior. Two drying lamps (3) are fixedly connected to the two cylinder assemblies (4) respectively. The auxiliary mechanism is set inside the mounting frame (2). The auxiliary mechanism includes a threaded rod (5) and a collection pipe (6). The threaded rod (5) is rotatably installed on the lower end of the front and rear inner walls of the mounting frame (2). A connecting plate (7) is threadedly connected to the outer surface of the threaded rod (5). The collection pipe (6) is fixedly installed on the lower end of the connecting plate (7). A guide rod (8) is fixedly installed on the lower end of the front and rear inner walls of the mounting frame (2). The guide rod (8) is located above the threaded rod (5). A first circular hole (9) is opened at the upper end of the connecting plate (7). The guide rod (8) is slidably connected to the interior of the first circular hole (9).

2. The drying device for printing on the surface of plastic woven bags according to claim 1, characterized in that: The auxiliary mechanism also includes an exhaust pipe (10), and a second circular hole (11) is provided on the front surface of the mounting bracket (2). The exhaust pipe (10) is slidably inserted into the inside of the second circular hole (11). The rear end of the exhaust pipe (10) is fixedly connected to the collection pipe (6). The exhaust pipe (10) and the collection pipe (6) are connected internally.

3. The drying device for printing on the surface of plastic woven bags according to claim 1, characterized in that: The lower end of the outer surface of the collection pipe (6) is provided with multiple collection holes (18).

4. The drying device for printing on the surface of plastic woven bags according to claim 1, characterized in that: A motor (12) is fixedly mounted on the rear surface of the mounting bracket (2). The output end of the motor (12) rotates through the interior of the mounting bracket (2). The motor (12) is fixedly connected to the threaded rod (5).

5. The drying device for printing on the surface of plastic woven bags according to claim 1, characterized in that: The upper surface of the mounting bracket (2) is provided with four limiting holes (13), and a limiting rod (14) is slidably installed inside each of the four limiting holes (13). The lower ends of the four limiting rods (14) are respectively fixedly connected to the corresponding drying lamps (3).

6. The drying device for printing on the surface of plastic woven bags according to claim 2, characterized in that: A connecting hose (15) is inserted into the front end of the exhaust pipe (10).

7. The drying device for printing on the surface of plastic woven bags according to claim 1, characterized in that: The guide rod (8) can be a round rod.

8. The drying device for printing on the surface of plastic woven bags according to claim 1, characterized in that: The guide rod (8) can also be a cleaning pipe with a water outlet (16) on its lower surface, and the front and rear ends of the cleaning pipe are fixedly connected to a connecting pipe (17).

Images