A flattening device for corrugated box processing

By combining the adjustment mechanism and the flexible pad, the corrugated carton flattening device achieves precise adjustment and flexible flattening, solving the problem of uneven adjustment in traditional devices and improving the adaptability and processing quality of the equipment.

CN224528175UActive Publication Date: 2026-07-21ZHEJIANG SANJIA PACKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SANJIA PACKING CO LTD
Filing Date
2026-06-12
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing corrugated cardboard box flattening devices cannot flexibly adjust the flattening spacing, resulting in low adjustment accuracy, uneven flattening, and affecting the quality of the cardboard boxes.

Method used

An adjustment mechanism is adopted, which drives the limit rod to slide and rise through the connecting plate. The rotational motion of the rotating rod is converted into the vertical lifting motion of the lifting frame, so as to achieve precise adjustment of the height of the flattening roller, and perform flattening operation in combination with the flexible pad.

Benefits of technology

It achieves precise adjustment of the flattening roller height, with good synchronization, adapts to various thicknesses of cartons, improves the versatility of the equipment, avoids incomplete flattening or excessive compression of cartons, and ensures processing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of flattening device for corrugated carton processing, it is related to flattening technical field, including rack, adjusting mechanism includes multiple support frame and two rotating rods, the inner surface of multiple support frame is slidably connected with lifting rod, the lower surface of multiple lifting rod is fixedly connected with lifting frame, the inner surface of lifting frame is rotatably connected with two support rods by bearing, the outer surface of two support rods is fixedly connected with flattening roller, the utility model is adjusted by setting adjusting mechanism, connecting plate drives the sliding lifting of limit rod, the vertical lifting movement of lifting frame is converted to the rotary motion of rotating rod, the accurate adjustment of flattening roller height can be realized, the process of adjusting is stable, and the synchronism is good, effectively solve the problem that traditional flattening device height adjusting precision is poor, one side lifting is easy to deviate, can accurately adapt to the flattening processing of multiple different thicknesses of corrugated carton, equipment versatility and adaptability are greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of flattening technology, and in particular to a flattening device for corrugated cardboard box processing. Background Technology

[0002] In the production and processing of corrugated boxes, flattening is an important post-processing step. It is mainly used to eliminate wrinkles, curling edges, and unevenness generated during the forming, cutting, and conveying of the boxes, ensuring that the corrugated boxes have a flat appearance and regular dimensions, and meet the requirements of subsequent printing, folding, and packing. Currently, the traditional corrugated box flattening devices on the market have relatively simple structures, mostly using fixed pressure roller structures or manual single-point adjustment structures. Fixed pressure rollers cannot flexibly adjust the flattening gap according to corrugated boxes of different thicknesses and specifications, resulting in poor versatility. On the other hand, manual adjustment methods have low adjustment accuracy and poor synchronization of the lifting and lowering of the two pressure rollers, which can easily lead to unilateral deviation and uneven flattening gaps, resulting in problems such as incomplete flattening or excessive compression in some parts of the box. Therefore, we propose a flattening device for corrugated box processing. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems by proposing a flattening device for corrugated cardboard box processing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a flattening device for corrugated cardboard box processing, comprising a frame, an adjustment mechanism provided at the top of the frame, the adjustment mechanism comprising multiple support frames and two rotating rods, lifting rods slidably connected to the inner surfaces of the multiple support frames, lifting frames fixedly connected to the lower surfaces of the multiple lifting rods, two support rods rotatably connected to the inner surfaces of the lifting frames via bearings, flattening rollers fixedly connected to the outer surfaces of the two support rods, two connecting plates fixedly connected to the outer surfaces of the two rotating rods, sliding holes provided on the outer surfaces of the multiple connecting plates, connecting members fixedly connected to the upper surfaces of the multiple lifting rods, and limit rods fixedly connected to the inner surfaces of the multiple connecting members, the limit rods being slidably connected to the sliding holes.

[0005] Preferably, the outer surfaces of the plurality of support frames are provided with through holes for the connecting plates to pass through.

[0006] Preferably, gears are fixedly connected to the outer surfaces of both rotating rods, and the two gears are meshed together.

[0007] Preferably, a conveyor belt is fixedly connected to the upper surface of the frame, and a mounting frame is fixedly connected to the upper surface of the frame.

[0008] Preferably, the two rotating rods are rotatably connected to the mounting frame via bearings, and the plurality of support frames are fixedly connected to the mounting frame.

[0009] Preferably, a motor is fixedly connected to the outer surface of the mounting bracket, and the output end of the motor is fixedly connected to one of the rotating rods.

[0010] Preferably, flexible pads are fixedly connected to the outer surfaces of both flattening rollers.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This utility model proposes a flattening device for corrugated cardboard box processing. By setting an adjustment mechanism, the connecting plate drives the sliding and lifting of the limiting rod, which converts the rotational motion of the rotating rod into the vertical lifting motion of the lifting frame. This enables precise adjustment of the height of the flattening roller. The adjustment process is smooth and has good synchronization, effectively solving the problems of poor height adjustment accuracy and easy deviation of unilateral lifting in traditional flattening devices. It can accurately adapt to the flattening processing of corrugated cardboard boxes of various thicknesses, greatly improving the equipment's versatility and adaptability. Attached Figure Description

[0012] Figure 1 This utility model provides an external structural diagram of a flattening device for corrugated cardboard box processing; Figure 2 This utility model provides a partial structural schematic diagram of a flattening device for corrugated cardboard box processing; Figure 3 This utility model provides a schematic diagram of a partial gear structure for a flattening device used in corrugated cardboard box processing; Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0013] Legend: 1. Frame; 2. Adjustment mechanism; 201. Support frame; 202. Rotating rod; 203. Lifting rod; 204. Lifting frame; 205. Support rod; 206. Flattening roller; 207. Connecting plate; 208. Sliding hole; 209. Connecting piece; 210. Limiting rod; 3. Through hole; 4. Gear; 5. Conveyor belt; 6. Mounting frame; 7. Motor; 8. Flexible pad. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] Example 1, as Figure 1 - Figure 4 As shown, a flattening device for corrugated cardboard box processing includes a frame 1. An adjustment mechanism 2 is provided on the top of the frame 1. The adjustment mechanism 2 includes multiple support frames 201 and two rotating rods 202. Lifting rods 203 are slidably connected to the inner surfaces of the multiple support frames 201. Lifting frame 204 is fixedly connected to the lower surfaces of the multiple lifting rods 203. Two support rods 205 are rotatably connected to the inner surfaces of the lifting frame 204 via bearings. Flattening rollers 206 are fixedly connected to the outer surfaces of the two support rods 205. Two connecting plates 207 are fixedly connected to the outer surfaces of the two rotating rods 202. Sliding holes 208 are provided on the outer surfaces of the multiple connecting plates 207. Connecting parts 209 are fixedly connected to the upper surfaces of the multiple lifting rods 203. Limiting rods 210 are fixedly connected to the inner surfaces of the multiple connecting parts 209. The limiting rods 210 are slidably connected to the sliding holes 208.

[0017] The effect achieved by the entire embodiment 1 is that multiple connecting plates 207 on the outer surface of the two rotating rods 202 swing in a circular motion simultaneously. During the swinging process of the connecting plates 207, the sliding hole 208 and the limiting rod 210 slide relative to each other, converting the circular swinging motion of the connecting plates 207 into the vertical lifting motion of the limiting rod 210. This drives multiple lifting rods 203 to rise and fall smoothly and vertically along the inner surface of the support frame 201. When multiple lifting rods 203 rise and fall synchronously, the height of the lifting frame 204 fixed at the bottom can be adjusted as a whole, thereby synchronously adjusting the vertical height of the two flattening rollers 206 inside the lifting frame 204, adapting to the flattening operation of corrugated cardboard boxes of different thicknesses.

[0018] Example 2, as Figure 1 - Figure 4 As shown, the outer surfaces of multiple support frames 201 are provided with through holes 3 for the connecting plate 207 to pass through. The outer surfaces of two rotating rods 202 are fixedly connected with gears 4, and the two gears 4 are meshed together. The upper surface of the frame 1 is fixedly connected with a conveyor belt 5, and the upper surface of the frame 1 is fixedly connected with a mounting frame 6. The two rotating rods 202 are rotatably connected to the mounting frame 6 through bearings. Multiple support frames 201 are fixedly connected to the mounting frame 6. The outer surface of the mounting frame 6 is fixedly connected with a motor 7, and the output end of the motor 7 is fixedly connected to one of the rotating rods 202. The outer surfaces of two flattening rollers 206 are fixedly connected with flexible pads 8.

[0019] The effect achieved by the entire embodiment 2 is that the conveyor belt 5 on the frame 1 is used to transport the corrugated carton to be processed, the output end of the motor 7 drives one of the rotating rods 202 to rotate, and under the transmission action of the two meshing gears 4, the two rotating rods 202 rotate synchronously in opposite directions, and the flexible pad 8 on the surface of the flattening roller 206 can perform flexible compaction and flattening treatment on the carton.

[0020] Working principle: During operation, the conveyor belt 5 on the frame 1 transports the corrugated boxes to be processed. The operator can adjust the flattening height according to the actual thickness of the corrugated boxes. The motor 7 on the outside of the mounting frame 6 is started. The output of the motor 7 drives one of the rotating rods 202 to rotate. Under the transmission action of two meshing gears 4, the two rotating rods 202 rotate synchronously in opposite directions, thereby driving multiple connecting plates 207 fixed to the outer surface of the two rotating rods 202 to swing synchronously. Since the limiting rod 210, fixed at the top of the lifting rod 203 through the connector 209, is slidably assembled inside the sliding hole 208 of the connecting plate 207, during the swinging process of the connecting plate 207, the sliding hole 208 and the limiting rod 210 slide relative to each other, converting the circumferential swinging motion of the connecting plate 207 into the circumferential swinging motion of the limiting rod 210. The vertical lifting motion drives multiple lifting rods 203 to rise and fall smoothly and vertically along the inner surface of the support frame 201. When multiple lifting rods 203 rise and fall synchronously, the height of the bottom-fixed lifting frame 204 can be adjusted as a whole, thereby synchronously adjusting the vertical height of the two flattening rollers 206 inside the lifting frame 204. This allows for precise control of the distance between the flattening rollers 206 and the conveyor belt 5, adapting to the flattening operation of corrugated boxes of different thicknesses. During the flattening operation, the conveyor belt 5 continuously transports the corrugated boxes. When the boxes pass under the two rotatable flattening rollers 206, the flexible pads 8 on the surface of the flattening rollers 206 can flexibly compact and flatten the boxes, effectively eliminating wrinkles and curling edges of the corrugated boxes, while avoiding damage to the boxes caused by hard compression, thus ensuring the quality of the flattening process of the corrugated boxes.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A flattening device for corrugated cardboard box processing, comprising a frame (1), characterized in that: The top of the frame (1) is provided with an adjustment mechanism (2). The adjustment mechanism (2) includes multiple support frames (201) and two rotating rods (202). The inner surfaces of the multiple support frames (201) are slidably connected with lifting rods (203). The lower surfaces of the multiple lifting rods (203) are fixedly connected with lifting frames (204). The inner surfaces of the lifting frames (204) are rotatably connected with two support rods (205) through bearings. The outer surfaces of the two support rods (205) are fixedly connected with flattening rollers (206). The outer surfaces of the two rotating rods (202) are fixedly connected with two connecting plates (207). The outer surfaces of the multiple connecting plates (207) are provided with sliding holes (208). The upper surfaces of the multiple lifting rods (203) are fixedly connected with connecting parts (209). The inner surfaces of the multiple connecting parts (209) are fixedly connected with limiting rods (210). The limiting rods (210) are slidably connected with the sliding holes (208).

2. The flattening device for corrugated cardboard box processing according to claim 1, characterized in that: The outer surfaces of the multiple support frames (201) are provided with through holes (3) for the connecting plate (207) to pass through.

3. The flattening device for corrugated cardboard box processing according to claim 1, characterized in that: Gears (4) are fixedly connected to the outer surfaces of both rotating rods (202), and the two gears (4) are meshed together.

4. The flattening device for corrugated cardboard box processing according to claim 1, characterized in that: A conveyor belt (5) is fixedly connected to the upper surface of the frame (1), and a mounting frame (6) is fixedly connected to the upper surface of the frame (1).

5. The flattening device for corrugated cardboard box processing according to claim 1, characterized in that: The two rotating rods (202) are rotatably connected to the mounting bracket (6) via bearings, and the multiple support brackets (201) are fixedly connected to the mounting bracket (6).

6. The flattening device for corrugated cardboard box processing according to claim 5, characterized in that: A motor (7) is fixedly connected to the outer surface of the mounting bracket (6), and the output end of the motor (7) is fixedly connected to one of the rotating rods (202).

7. The flattening device for corrugated cardboard box processing according to claim 1, characterized in that: Flexible pads (8) are fixedly connected to the outer surfaces of both flattening rollers (206).