Microwave drying equipment for paper bag production

The design of the feeding device enables vertical transport and all-around drying of paper bags, solving the problem of uneven drying in paper bag production and improving drying efficiency and product quality.

CN223985524UActive Publication Date: 2026-03-10YIXING WELLKNIT CONTAINER BAG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing microwave drying equipment for paper bag production suffers from uneven drying, resulting in insufficient drying in certain areas of the paper bags and affecting product quality.

Method used

The feeding device uses a cylinder to drive a hollow frame and a heat-resistant cable to hold the paper bag, and a motor drives a roller to vertically transport the paper bag to the microwave drying chamber. The support plate and through holes increase the contact area with hot air, achieving all-round drying.

Benefits of technology

It improves the drying efficiency and uniformity of paper bags, reduces localized insufficient drying, and enhances product quality and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of paper bag production, in particular to microwave drying equipment for paper bag production, which comprises a machine table and a feeding device, a microwave drying chamber is arranged on the surface of the machine table, the feeding device is arranged on the surface of the machine table and comprises four air cylinders, and every two of the four air cylinders are fixedly connected with the surfaces of the two sides of the machine table respectively. The feeding device comprises four cylinders, the output ends of every two cylinders are fixedly connected with a hollow frame, the inner walls of the hollow frames are rotationally connected with a plurality of rolling shafts, and heat-resistant belts are installed on the surfaces of the rolling shafts. Therefore, the side face of the paper bag can be exposed in microwaves to a greater extent, the overall heating area is remarkably increased, the paper bag can absorb microwave energy more quickly, the drying speed is increased, the drying effect is improved, the overall drying efficiency is improved, and the overall practicability of the equipment is improved.
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Description

Technical Field

[0001] This utility model relates to the field of paper bag production technology, and in particular to microwave drying equipment for paper bag production. Background Technology

[0002] Paper bags are bags made primarily of paper. They are typically lightweight, easy to fold, and portable. Whether for shopping, gift-giving, or daily storage, paper bags offer convenience. Furthermore, the opening design of paper bags is flexible, allowing them to be sealed or opened as needed, facilitating the storage and retrieval of items. During the processing of paper bags, microwave drying equipment is used to heat and dry them.

[0003] Existing technologies, such as CN106482480A, disclose a novel microwave dryer for paper products. This invention includes a support frame and a motor, characterized by further comprising a conveyor belt, a protective cover, casters, a microwave generator, a microwave suppressor, a heater, a temperature sensor, an alarm, a controller, and a display screen. The conveyor belt is mounted on the upper side of the support frame, and the protective cover is mounted on the upper side of the conveyor belt. The motor is mounted on the support frame below the conveyor belt. The controller and alarm are mounted on the outside of the protective cover. This invention utilizes a microwave generator and heater for microwave heating, resulting in better heating and a sterilization effect. The conveyor belt ensures more uniform heating and maintains the quality of the paper products. The microwave suppressor prevents microwave leakage, ensuring worker safety. This invention addresses the problems of current drying equipment with simple structures, limited heating capabilities, poor internal temperature control, and yellowing of paper products due to excessively high temperatures, affecting product quality.

[0004] In daily work, it has been found that when using existing microwave drying equipment for paper bag production, the paper bags are usually placed flat on the conveyor belt inside the microwave drying equipment. The flat paper bags are transported in by the conveyor belt for drying. However, when the paper bags are flat, only the top of the paper bags are in contact with the heat source during drying. This results in uneven heating of the paper bags and insufficient drying in some areas, which in turn affects the drying effect and product quality. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of uneven drying in existing technologies by proposing a microwave drying device for paper bag production.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a microwave drying equipment for paper bag production, including a machine base and a feeding device. The surface of the machine base is provided with a microwave drying chamber. The feeding device is disposed on the surface of the machine base and includes four cylinders. Each of the four cylinders is fixedly connected in pairs to two sides of the machine base. Hollow frames are fixedly connected to the output ends of each of the four cylinders in pairs. Multiple rollers are rotatably connected to the inner wall of the hollow frames. Heat-resistant tapes are mounted on the surfaces of the rollers. A motor is fixedly connected to the surface of the hollow frames. The output end of the motor is fixedly connected to one end of a roller. Two slide rails are fixedly connected to the surface of the hollow frames. Support members are slidably connected to the surfaces of the slide rails. Positioning components are provided on the surfaces of the support members. An auxiliary component is provided on one side of the hollow frames. Through these components, during drying, the cylinders drive the hollow frames to move. The heat-resistant tapes in the two sets of hollow frames can clamp the paper bags. The motor, in conjunction with the rollers, enables the heat-resistant tapes to vertically transport the paper bags into the microwave drying chamber, thereby improving the drying effect.

[0007] Preferably, the support includes a fixed plate, which is slidably connected to the surface of the slide rail. Multiple support plates are fixedly connected to the surface of the fixed plate. Through the above components, the multiple support plates on the fixed plate can support the paper bag, ensuring that the paper bag does not tilt, thereby ensuring the quality of the paper bag during drying.

[0008] Preferably, the surface of the support plate has multiple through holes, which are equally spaced on the support plate. Through the above-mentioned components, the multiple through holes on the support plate allow hot air to come into better contact with the paper bag, thereby improving the drying effect.

[0009] Preferably, the positioning component includes a screw, which is threadedly connected to the inner wall of the fixed plate. Through the above component, after the fixed plate moves the support plate on the slide rail to adjust its position, the screw can be rotated and abutted against the surface of the slide rail, thereby positioning the fixed plate and the support plate.

[0010] Preferably, two stabilizing rods are fixedly connected to the surface of the hollow frame. The stabilizing rods are slidably connected to the inner wall of the machine tool. Through the above-mentioned components, when the cylinder drives the hollow frame to move, the stabilizing rods can slide in the inner wall of the machine tool, thereby ensuring the overall stability of the hollow frame.

[0011] Preferably, the auxiliary component includes two concave seats, each fixedly connected to one side surface of two hollow frames. Multiple auxiliary wheels are rotatably connected to the inner wall of the hollow frames, and auxiliary belts are mounted on the surfaces of the auxiliary wheels. A transmission belt connects the auxiliary wheels to the rollers, enabling transmission. When the rollers rotate, the transmission belt drives the auxiliary wheels to rotate, which in turn drives the auxiliary belts. The auxiliary belts transport the paper bags to the heat-resistant fabric, thereby reducing worker contact with the heated area and improving safety.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] In this invention, by setting up a feeding device, the paper bag can be vertically clamped and supported on both sides, and then transported vertically. This allows the sides of the paper bag to be exposed to microwaves to a greater extent, significantly increasing the overall heating area. This enables the paper bag to absorb microwave energy more quickly, thereby accelerating the drying speed and effect, improving the overall drying efficiency, and thus enhancing the overall practicality of the equipment.

[0014] In this invention, by setting an auxiliary component, when the roller rotates, it can drive the auxiliary wheel to rotate through the transmission belt. The auxiliary wheel drives the auxiliary belt to run, and the auxiliary belt can transport the paper bag to the heat-resistant belt, thereby reducing workers' contact with the heat-generating area and improving safety. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a microwave drying device for paper bag production is provided for this utility model.

[0016] Figure 2 This utility model provides a schematic diagram of the feeding device of a microwave drying equipment for paper bag production.

[0017] Figure 3 This utility model proposes a microwave drying device for paper bag production. Figure 2 Schematic diagram of the structure at point A in the middle;

[0018] Figure 4 This utility model proposes a microwave drying device for paper bag production. Figure 2 A schematic diagram of the structure viewed from below;

[0019] Figure 5 This utility model proposes a microwave drying device for paper bag production. Figure 4 Schematic diagram of the structure at point B.

[0020] Legend:

[0021] 1. Machine base; 2. Microwave drying chamber; 3. Feeding device; 31. Cylinder; 32. Hollow frame; 33. Motor; 34. Auxiliary components; 341. Concave seat; 342. Auxiliary wheel; 343. Auxiliary belt; 344. Transmission belt; 35. Stabilizer bar; 36. Roller; 37. Heat-resistant material; 38. Support component; 381. Fixing plate; 382. Support plate; 383. Through hole; 384. Slide rail; 385. Screw. Detailed Implementation

[0022] Please see Figures 1-5 This utility model provides a technical solution: a microwave drying equipment for paper bag production, including a machine base 1 and a feeding device 3. The surface of the machine base 1 is provided with a microwave drying chamber 2, and the feeding device 3 is provided on the surface of the machine base 1.

[0023] Specifically, the feeding device 3 includes four cylinders 31, which are fixedly connected to the two side surfaces of the machine base 1 in pairs. The output ends of the four cylinders 31 are fixedly connected to hollow frames 32 in pairs. Multiple rollers 36 are rotatably connected to the inner wall of the hollow frame 32. The surface of the multiple rollers 36 is equipped with heat-resistant tape 37. A motor 33 is fixedly connected to the surface of the hollow frame 32. The output end of the motor 33 is fixedly connected to one end of the roller 36. Two slide rails 384 are fixedly connected to the surface of the hollow frame 32. A support member 38 is slidably connected to the surface of the slide rails 384. A positioning component is provided on the surface of the support member 38. An auxiliary component 34 is provided on one side of the hollow frame 32.

[0024] In this implementation scheme: During drying, the hollow frame 32 is moved by the cylinder 31. The heat-resistant cable 37 in the two sets of hollow frames 32 can clamp the paper bag. The paper bag can be vertically transported to the microwave drying chamber 2 by the motor 33 and the roller 36, thereby improving the drying effect.

[0025] Specifically, the support member 38 includes a fixed plate 381, which is slidably connected to the surface of the slide rail 384, and multiple support plates 382 are fixedly connected to the surface of the fixed plate 381.

[0026] In this implementation scheme, multiple support plates 382 on the fixed plate 381 can support the paper bag, ensuring that the paper bag does not tilt, thereby ensuring the quality of the paper bag during drying.

[0027] Specifically, the surface of the support plate 382 is provided with multiple through holes 383, which are equally spaced on the support plate 382. The multiple through holes 383 on the support plate 382 allow hot air to come into better contact with the paper bag, thereby improving the drying effect.

[0028] Specifically, the positioning component includes a screw 385, which is threadedly connected to the inner wall of the fixing plate 381.

[0029] In this implementation scheme: after the fixed plate 381 moves and adjusts the position of the support plate 382 on the slide rail 384, the screw 385 can be rotated. The screw 385 can abut against the surface of the slide rail 384, thereby positioning the fixed plate 381 and the support plate 382.

[0030] Specifically, two stabilizing rods 35 are fixedly connected to the surface of the hollow frame 32. The stabilizing rods 35 are slidably connected to the inner wall of the machine base 1. When the cylinder 31 drives the hollow frame 32 to move, the stabilizing rods 35 can slide in the inner wall of the machine base 1, thereby ensuring the overall stability of the hollow frame 32.

[0031] Specifically, the auxiliary component 34 includes a concave seat 341. There are two concave seats 341. The two concave seats 341 are fixedly connected to one side surface of the two hollow frames 32 respectively. Multiple auxiliary wheels 342 are rotatably connected to the inner wall of the hollow frame 32. An auxiliary belt 343 is installed on the surface of the multiple auxiliary wheels 342. A transmission belt 344 is provided between the auxiliary wheels 342 and the roller 36, and the transmission is connected through the transmission belt 344.

[0032] In this implementation scheme: when the roller 36 rotates, it can drive the auxiliary wheel 342 to rotate through the transmission belt 344. The auxiliary wheel 342 drives the auxiliary belt 343 to run. The auxiliary belt 343 can transport the paper bag to the heat-resistant belt 37, thereby reducing workers' contact with the heat-generating area and improving safety.

[0033] Working principle: When drying paper bags, firstly, cylinder 31 is opened. The four sets of cylinders 31 respectively drive the two sets of hollow frames 32 and concave seats 341 to move. After moving to a certain position, the two heat-resistant belts 37 and auxiliary belts 343 can clamp the paper bag. Then, the fixing plate 381 moves on the slide rail 384. The fixing plate 381 drives multiple support plates 382 to move and adjust. After adjusting to a certain position, the screw 385 is rotated. The screw 385 can press against the surface of the slide rail 384, thereby positioning the fixing plate 381 and support plates 382. When conveying and feeding paper bags, the paper bag can be placed between the two auxiliary belts 343. When motor 33 is turned on, it drives rollers 36 to rotate, which in turn drives heat-resistant tape 37 for transport. At the same time, rollers 36 drive auxiliary wheels 342 to rotate via transmission belt 344. Auxiliary wheels 342 drive auxiliary belt 343 to run, and the auxiliary belt 343 transports the paper bag onto heat-resistant tape 37. Heat-resistant tape 37 transports the paper bag vertically into microwave drying chamber 2. During the transport process, multiple support plates 382 can support and intercept the paper bag on both sides to ensure that the paper bag does not deform. In addition, multiple through holes 383 on the support plates 382 can allow hot air to come into contact with the paper bag, thereby achieving a drying effect on multiple sides of the paper bag and improving the overall quality.

Claims

1. A microwave drying device for paper bag production, comprising a machine table (1) and a feeding device (3), characterized in that: The surface of the machine table (1) is provided with a microwave drying chamber (2), the feeding device (3) is arranged on the surface of the machine table (1), the feeding device (3) comprises four air cylinders (31), the four air cylinders (31) are fixedly connected with the two side surfaces of the machine table (1) respectively in pairs, the hollow frame (32) is fixedly connected with the output ends of the four air cylinders (31) respectively in pairs, a plurality of rolling shafts (36) are rotatably connected to the inner wall of the hollow frame (32), heat-resistant bands (37) are mounted on the surfaces of the rolling shafts (36), the motor (33) is fixedly connected to the surface of the hollow frame (32), one end of the rolling shaft (36) is fixedly connected with the output end of the motor (33), two slide rails (384) are fixedly connected to the surface of the hollow frame (32), the support piece (38) is slidably connected to the surface of the slide rail (384), the positioning assembly is arranged on the surface of the support piece (38), and the auxiliary assembly (34) is arranged on one side of the hollow frame (32).

2. The microwave drying apparatus for paper bag production according to claim 1, characterized in that: The support piece (38) comprises a fixed plate (381), the fixed plate (381) is slidably connected with the surface of the slide rail (384), and a plurality of support plates (382) are fixedly connected to the surface of the fixed plate (381).

3. The microwave drying apparatus for paper bag production according to claim 2, characterized in that: A plurality of through holes (383) are formed in the surface of the support plate (382), and the through holes (383) are arranged at equal intervals on the support plate (382).

4. The microwave drying apparatus for paper bag production according to claim 1, characterized in that: The positioning assembly comprises a screw rod (385), and the screw rod (385) is threadedly connected with the inner wall of the fixed plate (381).

5. The microwave drying apparatus for paper bag production according to claim 1, characterized in that: Two stabilizing rods (35) are fixedly connected to the surface of the hollow frame (32), and the stabilizing rods (35) are slidably connected with the inner wall of the machine table (1).

6. The microwave drying apparatus for paper bag production according to claim 5, characterized in that: The auxiliary assembly (34) comprises two concave seats (341), the two concave seats (341) are fixedly connected with the side surfaces of the two hollow frames (32) respectively, a plurality of auxiliary wheels (342) are rotatably connected to the inner wall of the hollow frame (32), auxiliary belts (343) are mounted on the surfaces of the auxiliary wheels (342), and transmission belts (344) are arranged between the auxiliary wheels (342) and the rolling shafts (36) and are connected in transmission through the transmission belts (344).

Citation Information

Patent Citations

  • Novel microwave dryer for paper products

    CN106482480A