Efficient flattening device for paperboards

The sliding rod and pressing plate system driven by multiple hydraulic cylinders, combined with heat energy transfer and cooling shaping, solves the problem of poor cardboard flattening effect, achieves efficient flattening and improves the quality of paper boxes.

CN223355107UActive Publication Date: 2025-09-19ZHEJIANG BAOGUANG PRINTING CO LTD
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Patent Information

Application Number
CN202422719738.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-07
Publication Date
2025-09-19
Estimated Expiration
2034-11-07

AI Technical Summary

Technical Problem

The existing cardboard flattening device has poor flattening effect and low flattening efficiency, which is difficult to meet the needs of mass production. In addition, the cardboard warps up, affecting the strength and shape of the paper box.

Method used

The sliding rod and pressing plate system driven by multiple hydraulic cylinders achieves uniform flattening of the cardboard through multi-point pressure application and heat energy transfer combined with cooling and shaping.

Benefits of technology

It improves the flattening efficiency and effect of the cardboard, ensures the flatness of the cardboard, and enhances the strength and shape stability of the paper box.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223355107U_ABST
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Abstract

An efficient flattening device for paperboards comprises an equipment base, a fixing station, a flattening device body and a controller, and the flattening device body comprises a fixing frame, a plurality of sliding rods, a first pressing plate, a first sliding base, a second sliding base, a second pressing plate, a first hydraulic air cylinder, a second hydraulic air cylinder and a third hydraulic air cylinder. The first pressing plate and the second pressing plate are both located over the fixing station, the movement track of the sliding rod does not coincide with the movement track of the second sliding base, the width of the first pressing plate is matched with the width of the second pressing plate, and the length of the first pressing plate is larger than that of the second pressing plate. The controller is electrically connected with the first hydraulic air cylinder, the second hydraulic air cylinder and the third hydraulic air cylinder.
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Description

Technical Field

[0001] The utility model relates to the technical field of cardboard processing, in particular to a high-efficiency flattening device for cardboard. Background Art

[0002] As people's living standards continue to improve, the logistics industry is also developing, and paper boxes are widely used in the logistics industry. Paper boxes need to be made of cardboard. During the production and manufacturing process of cardboard, since the raw materials of cardboard contain moisture, the cardboard needs to be dried. During the drying process of the cardboard, the moisture drying rate at the bottom of the cardboard is greater than the moisture drying rate at the top of the cardboard. When the moisture restores to balance, the cardboard will naturally warp up. If warped cardboard is used, the strength and shape of the manufactured paper box will be affected. The cardboard flattening device in the prior art usually places the cardboard to be processed on a work station and then presses it down through a pressing plate. After the cardboard is pressed for a period of time, the cardboard will return to flatness. However, the existing cardboard flattening device has the following problems: first, when the pressing plate presses down, the force points of the entire cardboard are usually concentrated only at the center, which greatly affects the flattening effect; second, the existing flattening method is inefficient and takes a long time, which is difficult to meet the needs of mass production. Summary of the Invention

[0003] In order to solve the above problems, the utility model provides a high-efficiency flattening device for cardboard with good flattening effect and high flattening efficiency.

[0004] The technical solution of the utility model is: an efficient flattening device for cardboard, comprising an equipment base, a fixed workstation connected to the equipment base, a flattening device connected to the equipment base and a controller, the flattening device comprising a fixed frame fixedly connected to the equipment base, a plurality of sliding rods slidably connected to the fixed frame, a first pressing plate fixedly connected to the sliding rod, a first sliding base slidably connected to the fixed frame, a second sliding base slidably connected to the first sliding base, a second pressing plate fixedly connected to the second sliding base, a first hydraulic cylinder for driving the sliding rod to slide in a vertical direction, a second hydraulic cylinder for driving the first sliding base to move in a horizontal direction and a third hydraulic cylinder for driving the second sliding base to move in a vertical direction, the first pressing plate and the second pressing plate are both located directly above the fixed workstation, the movement trajectories of the sliding rod and the second sliding base do not overlap, the width of the first pressing plate is adapted to the width of the second pressing plate, the length of the first pressing plate is greater than the length of the second pressing plate, and the controller is electrically connected to the first hydraulic cylinder, the second hydraulic cylinder and the third hydraulic cylinder respectively.

[0005] By adopting the above technical solution, first, the cardboard to be flattened is placed on a fixed workstation, and then the controller controls the first hydraulic cylinder to drive the sliding rod to move vertically downward, so that the first pressing plate contacts the cardboard and presses the cardboard tightly, and then the controller controls the third hydraulic cylinder to drive the second sliding base to move vertically downward, so that the second pressing plate contacts the first pressing plate, so that the second pressing plate applies further pressure to the local position of the cardboard, and then the controller controls the third hydraulic cylinder to drive the second sliding base to reset, and then the controller controls the second hydraulic cylinder to drive the first sliding base to slide a certain distance in the horizontal direction, and then the third hydraulic cylinder drives the second sliding base to move vertically downward, so that the second pressing plate is pressed down, so that the first pressing plate can apply pressure to the entire cardboard, and then the second pressing plate can continuously apply pressure to the local position of the cardboard and change the position of applying pressure, which can greatly improve the flattening efficiency and flattening effect of the cardboard.

[0006] Further configuration of the present utility model: the fixed frame is also provided with a third sliding base slidably connected to the fixed frame, a third pressure plate slidably connected to the fourth sliding base, fixedly connected to the fourth sliding base, a fourth hydraulic cylinder for driving the third sliding base to move in a horizontal direction, and a fifth hydraulic cylinder for driving the fourth sliding base to move in a vertical direction. The third pressure plate has the same shape and size as the second pressure plate, the movement direction of the third sliding base is opposite to that of the first sliding base, and the controller is electrically connected to the fourth hydraulic cylinder and the fifth hydraulic cylinder respectively.

[0007] With the above technical solution, since the third pressing plate and the second pressing plate have the same shape and size, and the movement direction of the third sliding base is opposite to that of the first sliding base, after the first pressing plate presses the cardboard, the controller controls the third hydraulic cylinder and the fifth hydraulic cylinder to respectively drive the second sliding base and the fourth sliding base to move vertically downward, so that the second pressing plate and the third pressing plate apply pressure to the first pressing plate respectively, and then the second hydraulic cylinder and the fourth hydraulic cylinder respectively drive the first sliding base and the third sliding base to move toward each other in the horizontal direction, thereby ensuring that the pressure on both sides of the cardboard remains balanced. This can not only further improve the flattening efficiency, but also further improve the flattening effect.

[0008] The present invention further features a plurality of heating elements installed on the first pressing plate, connected to the side of the first pressing plate, and electrically connected to the controller. With this technical solution, the first pressing plate is provided with a plurality of heating elements. The controller controls the heating elements to provide heat to the first pressing plate, which then transfers the heat to the paperboard. This heat softens the paperboard, further improving flattening efficiency.

[0009] The utility model is further configured as follows: the equipment base is provided with a fifth sliding base slidably connected to the equipment base, a sixth hydraulic cylinder for driving the fifth sliding base to move in a vertical direction, an injection element fixedly connected to the fifth sliding base, a connecting pipe connected to the injection element and a cold air generator connected to the connecting pipe, the injection direction of the injection element is toward the center direction of the fixed workstation, and the controller is electrically connected to the cold air generator and the sixth hydraulic cylinder respectively.

[0010] With the above technical solution, when the cardboard is heated and the flattening work is completed, the first pressing plate first maintains its position unchanged, and then the controller controls the sixth hydraulic cylinder to drive the fifth sliding base to slide in the vertical direction, thereby driving the position of the jet element to change in the vertical direction. Then, the cold air generator provides cold air to the jet element, causing the cardboard to cool quickly, thus ensuring that the cardboard is quickly shaped, thereby further improving the flattening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Attachment Figure 1 This is a schematic structural diagram of a high-efficiency flattening device for cardboard according to a specific embodiment of the present utility model.

[0012] 1-Equipment base, 2-Fixed workstation, 3-Flattening device, 4-Controller, 5-Fixed frame, 6-Sliding rod, 7-First pressure plate, 8-First sliding base, 9-Second sliding base, 10-Second pressure plate, 11-First hydraulic cylinder, 12-Second hydraulic cylinder, 13-Third hydraulic cylinder, 14-Third sliding base, 15-Fourth sliding base, 16-Third pressure plate, 17-Fourth hydraulic cylinder, 18-Fifth hydraulic cylinder, 19-Heating element, 20-Fifth sliding base, 21-Sixth hydraulic cylinder, 22-Jet element, 23-Connecting pipe, 24-Cold air generator. DETAILED DESCRIPTION

[0013] like Figure 1As shown, an efficient flattening device for cardboard includes an equipment base 1, a fixed station 2 connected to the equipment base 1, a flattening device 3 connected to the equipment base 1, and a controller 4. The flattening device 3 includes a fixed frame 5 fixedly connected to the equipment base 1, a plurality of sliding rods 6 slidably connected to the fixed frame 5, a first pressing plate 7 fixedly connected to the sliding rods 6, a first sliding base 8 slidably connected to the fixed frame 5, a second sliding base 9 slidably connected to the first sliding base 8, a second pressing plate 10 fixedly connected to the second sliding base 9, a first liquid for driving the sliding rods 6 to slide in the vertical direction, and a plurality of sliding rods 6 slidably connected to the fixed frame 5. The first pressure plate 7 and the second pressure plate 10 are both located directly above the fixed workstation. The movement trajectory of the sliding rod 6 and the second sliding base 9 do not overlap. The width of the first pressure plate 7 is adapted to the width of the second pressure plate 10. The length of the first pressure plate 7 is greater than the length of the second pressure plate 10. The controller 4 is electrically connected to the first hydraulic cylinder 11, the second hydraulic cylinder 12 and the third hydraulic cylinder 13 respectively.

[0014] First, the cardboard to be flattened is placed on the fixed workstation 2, and then the controller 4 controls the first hydraulic cylinder 11 to drive the sliding rod 6 to move vertically downward, so that the first pressing plate 7 contacts the cardboard and presses the cardboard, and then the controller 4 controls the third hydraulic cylinder 13 to drive the second sliding base 9 to move vertically downward, so that the second pressing plate 10 contacts the first pressing plate 7, so that the second pressing plate 10 applies further pressure to the local position of the cardboard, and then the controller 4 controls the third hydraulic cylinder 13 to drive the second sliding base 9 to reset, and then the controller 4 controls the second hydraulic cylinder 12 to drive the first sliding base 8 to slide a certain distance in the horizontal direction, and then the third hydraulic cylinder 13 drives the second sliding base 9 to move vertically downward, so that the second pressing plate 10 presses down, so that the first pressing plate 7 can apply pressure to the entire cardboard, and then the second pressing plate 10 continuously applies pressure to the local position of the cardboard and changes the position of applying pressure, which can greatly improve the flattening efficiency and flattening effect of the cardboard. The fixed frame 5 is also provided with a third sliding base 14 slidably connected to the fixed frame 5, a fourth sliding base 15 slidably connected to the fourth sliding base 15, a third pressure plate 16 fixedly connected to the fourth sliding base 15, a fourth hydraulic cylinder 17 for driving the third sliding base 14 to move in the horizontal direction, and a fifth hydraulic cylinder 18 for driving the fourth sliding base 15 to move in the vertical direction. The third pressure plate 16 has the same shape and size as the second pressure plate 10, and the movement direction of the third sliding base 14 is opposite to that of the first sliding base 8. The controller 4 is electrically connected to the fourth hydraulic cylinder 17 and the fifth hydraulic cylinder 18 respectively.

[0015] Since the third pressing plate 16 and the second pressing plate 10 have the same shape and size, and the third sliding base 14 moves in opposite directions to the first sliding base 8, after the first pressing plate 7 presses the cardboard, the controller 4 controls the third hydraulic cylinder 13 and the fifth hydraulic cylinder 18 to respectively drive the second sliding base 9 and the fourth sliding base 15 to move vertically downward, so that the second pressing plate 10 and the third pressing plate 16 respectively apply pressure to the first pressing plate 7. Then, the second hydraulic cylinder 12 and the fourth hydraulic cylinder 17 respectively drive the first sliding base 8 and the third sliding base 14 to move toward each other in the horizontal direction, thereby ensuring that the pressure on both sides of the cardboard remains balanced. This can not only further improve the flattening efficiency, but also further improve the flattening effect. The first pressing plate 7 is provided with a plurality of heating elements 19, which are connected to the side of the first pressing plate 7. The controller 4 is electrically connected to the heating elements 19.

[0016] Since the first pressing plate 7 is provided with a plurality of heating elements 19 , the controller 4 controls the heating elements 19 to provide heat energy to the first pressing plate 7 , and the first pressing plate 7 transfers the heat energy to the paperboard, which can further improve the flattening efficiency after being softened by heat.

[0017] The equipment base 1 is provided with a fifth sliding base 20 slidably connected to the equipment base 1, a sixth hydraulic cylinder 21 for driving the fifth sliding base 20 to move in a vertical direction, an injection element 22 fixedly connected to the fifth sliding base 20, a connecting pipe 23 connected to the injection element 22 and a cold air generator 24 connected to the connecting pipe 23. The injection direction of the injection element 22 is toward the center direction of the fixed workstation 2. The controller 4 is electrically connected to the cold air generator 24 and the sixth hydraulic cylinder 21, respectively.

[0018] After the cardboard is heated and the flattening work is completed, the first pressing plate 7 maintains its position unchanged. Then, the controller 4 controls the sixth hydraulic cylinder 21 to drive the fifth sliding base 20 to slide in the vertical direction, thereby driving the position of the jet element 22 to change in the vertical direction. Then, the cold air generator 24 provides cold air to the jet element 22, so that the cardboard is quickly cooled, thereby ensuring that the cardboard is quickly shaped, thereby further improving the flattening effect.

Claims

1. An efficient flattening device for cardboard, characterized by: The cam is adapted to move the movable frame around the support frame, and the movable frame is adapted to move the movable frame around the support frame.

2. A high-efficiency flattening device for cardboard according to claim 1, characterized in that: The fixed frame is also provided with a third sliding base slidably connected to the fixed frame, a third pressure plate slidably connected to the fourth sliding base and fixedly connected to the fourth sliding base, a fourth hydraulic cylinder for driving the third sliding base to move in a horizontal direction, and a fifth hydraulic cylinder for driving the fourth sliding base to move in a vertical direction. The third pressure plate has the same shape and size as the second pressure plate, and the movement direction of the third sliding base is opposite to that of the first sliding base. The controller is electrically connected to the fourth hydraulic cylinder and the fifth hydraulic cylinder respectively.

3. A high-efficiency flattening device for cardboard according to claim 2, characterized in that: The first pressing plate is provided with a plurality of heating elements, the heating elements are connected to the side of the first pressing plate, and the controller is electrically connected to the heating elements.

4. A high-efficiency flattening device for cardboard according to claim 3, characterized in that: The equipment base is provided with a fifth sliding base slidably connected to the equipment base, a sixth hydraulic cylinder for driving the fifth sliding base to move in a vertical direction, an injection element fixedly connected to the fifth sliding base, a connecting pipe connected to the injection element and a cold air generator connected to the connecting pipe, the injection direction of the injection element is toward the center direction of the fixed workstation, and the controller is electrically connected to the cold air generator and the sixth hydraulic cylinder respectively.