Drying device for pattern jet printing of shopping bag
The drying device, consisting of a motor-driven conveyor and hot air ducts, combined with temperature sensors and controllers, solves the problems of low drying efficiency, large space occupation, and troublesome handling of printed shopping bags, and realizes an automated, fast, safe, and efficient drying process for shopping bags.
Patent Information
- Application Number
- CN202422961462.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-03
AI Technical Summary
The current shopping bag printing process suffers from low drying efficiency, large space requirements, and complicated handling, and is prone to damaging the printed pattern, resulting in low production efficiency and high operating costs.
The drying device consists of a motor-driven conveyor and hot air ducts, combined with temperature sensors and controllers to achieve automated drying. The design of movable collection components, baffles, and heat insulation cotton ensures drying efficiency and safety.
It enables automated and rapid drying of shopping bag patterns, reduces space occupation, improves production efficiency, saves energy and reduces labor costs, and ensures the integrity of printed patterns and equipment safety.
Smart Images

Figure CN223494111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing equipment technology, and in particular to a drying device for printing patterns on shopping bags. Background Technology
[0002] Paper shopping bags, as an environmentally friendly and biodegradable shopping container, have been widely promoted and used globally in recent years. Compared to traditional plastic bags, paper shopping bags not only reduce reliance on petroleum resources during production but also decompose more quickly in the natural environment after disposal, reducing pollution. Furthermore, paper shopping bags offer excellent printability; their surface easily accommodates various patterns and text, allowing businesses to personalize designs according to their brand characteristics, enhancing product promotion and the consumer shopping experience.
[0003] With the increasing demand for personalized goods, printing services for small-batch or customized shopping bags are gradually becoming a market favorite. Currently, the printing process for these shopping bags is mostly done manually or semi-automatically. Workers manually place each shopping bag onto the printing equipment, print it, and then remove them one by one, scattering them on a wide surface to dry. While this method offers high flexibility and can meet diverse customization needs, it has significant limitations in terms of processing efficiency and large-scale production.
[0004] The existing method of combining manual operation with natural drying on a wide surface has revealed a number of drawbacks. First, while the wide surface helps the printed pattern dry fully and avoids blurring or sticking caused by stacking, it significantly limits the stacking speed after drying, resulting in low production efficiency. Second, the spacious drying area occupies a large amount of production space, which undoubtedly increases operating costs for small and medium-sized enterprises with limited space. More importantly, when the printed shopping bags are collected later, they are scattered on the wide surface, making it difficult to quickly and orderly sort and pack them. This not only increases labor costs but may also damage the dried printed pattern due to improper handling, affecting the quality of the final product. Utility Model Content
[0005] To overcome the shortcomings of low drying efficiency, large space occupation, and troublesome handling, this utility model provides a drying device for printing patterns on shopping bags.
[0006] A drying device for printing patterns on shopping bags includes a printing machine and a conveyor. The conveyor is installed on the right side of the printing machine. A motor is installed on the conveyor, which drives the conveyor belt to rotate. A drying chamber is connected to the conveyor. Multiple hot air pipes are installed inside the drying chamber. A controller is installed on the front side of the drying chamber and is wired to the hot air pipes. A collection component for collecting shopping bags is provided on the right side of the conveyor.
[0007] As a preferred technical solution of this utility model, the collection component includes a collection box, which is located on the right side of the conveyor, and the top of the collection box is lower than the top surface of the conveyor belt connected to the conveyor. The bottom of the collection box is equipped with casters, and the top right side of the collection box is connected to a handle.
[0008] As a preferred embodiment of this utility model, a temperature sensor is installed inside the drying oven, and the temperature sensor is wiredly connected to the controller.
[0009] As a preferred embodiment of this utility model, an extension plate is connected to the right side of the conveyor, the extension plate is tangent to the last end of the conveyor belt, and the right end of the extension plate is in contact with the top of the collection box.
[0010] As a preferred embodiment of this utility model, the drying box is connected to baffles on both the left and right sides, and the distance between the bottom of the baffle and the conveyor belt is greater than the thickness of the shopping bag.
[0011] As a preferred embodiment of this invention, the drying oven is wrapped with heat-insulating cotton on the outside.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] 1. By using a motor-driven conveyor and hot air duct, the printed shopping bags are automatically transported to the drying chamber for drying, realizing an automated drying process, improving the efficiency of printing and drying, and also reducing space occupation and facilitating sorting through movable collection components.
[0014] 2. By coordinating temperature sensors and controllers, the output power of the hot air duct is precisely adjusted to ensure that the drying temperature is always kept within the optimal range, thereby improving drying efficiency and saving energy. The extension plate allows shopping bags to slide smoothly from the conveyor belt into the collection box, avoiding damage caused by falling.
[0015] 3. The temperature inside the drying chamber is locked in by the baffles and heat insulation cotton, reducing heat loss and thus improving drying efficiency. In addition, the heat insulation cotton also avoids the risk of burns to staff due to accidental contact, improving the safety of the equipment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a three-dimensional structural diagram of the conveyor and motor of this utility model.
[0018] Figure 3 This is a three-dimensional structural diagram of the hot air duct and temperature sensor of this utility model.
[0019] The above-mentioned figures include the following reference numerals: 1. Printing machine, 2. Conveyor, 3. Motor, 4. Drying box, 5. Controller, 6. Hot air duct, 7. Collection box, 8. Caster wheel, 9. Handle, 10. Temperature sensor, 11. Extension plate, 12. Baffle, 13. Insulation cotton. Detailed Implementation
[0020] Although this invention may be described with respect to a particular application or industry, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.
[0021] Example: A drying device for printing patterns on shopping bags, such as... Figures 1-3 As shown, the device includes a printing machine 1, a conveyor 2, a motor 3, a drying chamber 4, a controller 5, hot air ducts 6, and a collection assembly. The printing machine 1 is equipped with a conveyor 2 on its right side, and a motor 3 is installed on the conveyor 2. The motor 3 drives the conveyor belt of the conveyor 2 to rotate. The drying chamber 4 is connected to the conveyor 2. Multiple hot air ducts 6 are installed on the top of the drying chamber 4. The controller 5 is installed on the front side of the drying chamber 4 and is wired to the hot air ducts 6. A collection assembly for collecting shopping bags is provided on the right side of the conveyor 2.
[0022] like Figure 1 As shown, the collection assembly includes a collection box 7, casters 8, and a handle 9. The collection box 7 is located on the right side of the conveyor 2, and the top of the collection box 7 is lower than the top surface of the conveyor belt connected to the conveyor 2. The shopping bag falls into the collection box 7 after passing through the conveyor belt. Four casters 8 are installed at the bottom of the collection box 7, and a handle 9 is connected to the top right side of the collection box 7.
[0023] like Figure 3 As shown, it also includes a temperature sensor 10. The temperature sensor 10 is installed inside the drying oven 4 and is wired to the controller 5.
[0024] like Figure 1As shown, it also includes an extension plate 11. The right side of the conveyor 2 is connected to the extension plate 11, which is tangent to the last end of the conveyor belt, and the right end of the extension plate 11 is in contact with the top of the collection box 7.
[0025] like Figure 1 As shown, it also includes baffles 12. Baffles 12 are connected to the left and right sides of the drying box 4. The distance between the bottom of the baffles 12 and the conveyor belt is greater than the thickness of the shopping bag.
[0026] like Figure 1 As shown, it also includes heat insulation cotton 13, and the outside of the drying oven 4 is wrapped with heat insulation cotton 13.
[0027] First, the operator places the shopping bag to be printed on the printing machine 1. Through the operation of the printing machine 1, the preset pattern is accurately printed on the shopping bag. After the printing is completed, the operator places the printed shopping bag on the conveyor 2. At this time, the motor 3 starts to work, driving the conveyor belt of the conveyor 2 to move to the right at a stable speed. As the conveyor belt continues to rotate, the shopping bag is smoothly transported to the right.
[0028] As the shopping bags gradually approach and enter the drying chamber 4, the operator has already turned on the hot air pipe 6 inside the drying chamber 4 via the controller 5 before the shopping bags approach the drying chamber. The hot air pipe 6 begins to provide a suitable temperature and airflow to accelerate the drying of the printed pattern on the shopping bags. When the shopping bags enter the drying chamber 4, they will immediately feel the warm airflow from the hot air pipe 6, which not only accelerates the evaporation of moisture on the pattern, but also ensures the rapid fixation of the pattern, thereby improving the overall printing quality.
[0029] After passing through the drying box 4, the shopping bag continues to move to the right and gradually approaches the end of the conveyor 2. Since the top surface of the extension plate 11 is tangent to the last end of the conveyor belt and its right end is in close contact with the top of the collection box 7, the shopping bag will slide into the collection box 7 along the inclined surface of the extension plate 11 under the drive of the conveyor belt. This design ensures the smooth collection of the shopping bag and prevents the shopping bag from falling directly to the ground.
[0030] During the drying process, the temperature sensor 10 plays a crucial role. It monitors the temperature inside the drying chamber 4 in real time and feeds this information back to the controller 5. Based on the feedback from the temperature sensor 10, the controller 5 precisely adjusts the output power of the hot air pipe 6 to ensure that the drying temperature is always kept within the optimal range. This intelligent adjustment method not only improves drying efficiency but also saves energy.
[0031] The baffles 12 on the left and right sides of the drying oven 4 lock in the temperature inside the drying oven 4, reduce heat loss, and ensure the stability and efficiency of the drying process. At the same time, the heat insulation cotton 13 wrapped around the outside of the drying oven 4 also plays a double role in heat preservation, which not only prevents heat leakage, but also avoids the risk of staff being burned due to accidental contact.
[0032] Finally, once all the shopping bags have been dried and collected, the operator simply pushes the collection box 7 with the handle 9, and the collection box 7 will easily move to the designated location with the support of the casters 8 at the bottom.
[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A drying device for printing patterns on shopping bags, characterized in that: The device includes a printing press (1) and a conveyor (2). The conveyor (2) is installed on the right side of the printing press (1). A motor (3) is installed on the conveyor (2). The motor (3) drives the conveyor belt of the conveyor (2) to rotate. A drying box (4) is connected to the conveyor (2). Multiple hot air pipes (6) are installed inside the drying box (4). A controller (5) is installed on the front side of the drying box (4). The controller (5) is wired to the hot air pipes (6). A collection component for collecting shopping bags is provided on the right side of the conveyor (2).
2. The drying apparatus for printing patterns on shopping bags as described in claim 1, characterized in that: The collection component includes a collection box (7) located on the right side of the conveyor (2), with the top of the collection box (7) being lower than the top surface of the conveyor belt connected to the conveyor (2). The bottom of the collection box (7) is equipped with casters (8), and a handle (9) is connected to the top right side of the collection box (7).
3. The drying apparatus for printing patterns on shopping bags as described in claim 2, characterized in that: A temperature sensor (10) is installed inside the drying oven (4), and the temperature sensor (10) is wired to the controller (5).
4. The drying apparatus for printing patterns on shopping bags as described in claim 3, characterized in that: An extension plate (11) is connected to the right side of the conveyor (2). The extension plate (11) is tangent to the last end of the conveyor belt, and the right end of the extension plate (11) is in contact with the top of the collection box (7).
5. The drying apparatus for printing patterns on shopping bags as described in claim 4, characterized in that: The drying box (4) is connected to baffles (12) on the left and right sides. The distance between the bottom of the baffle (12) and the conveyor belt is greater than the thickness of the shopping bag.
6. The drying apparatus for printing patterns on shopping bags as described in claim 5, characterized in that: The drying oven (4) is wrapped with heat insulation cotton (13) on the outside.