Paperboard folding equipment

Abstract

The utility model relates to the technical field of paperboard processing, in particular to paperboard folding equipment which is characterized in that a plurality of first rollers are connected to the upper end of the interior of each fixing frame at equal intervals in the length direction, a plurality of second rollers are connected to the bottom end of the interior of each fixing frame at equal intervals in the length direction, and a mounting plate is fixedly connected to a bottom frame; the upper end of the mounting plate is fixedly connected with a second electric telescopic rod, and the telescopic end of the second electric telescopic rod is fixedly connected with an indentation plate. The two folding plates are pushed to oppositely rotate by a set angle after the two first electric telescopic rods are started, a paperboard is driven to rotate and fold after the folding plates rotate, in the paperboard rotating and folding process, the side edge of the paperboard is limited and fixed by the first rolling wheel and the second rolling wheel, the paperboard between the two opposite fixing frames is pushed by the folding plates, and the paperboard is folded. According to the paperboard folding device, the paperboard is evenly stressed when being folded, bending cannot be generated in the paperboard rotating and folding process, therefore, bending marks cannot be generated, and the paperboard folding effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard processing, in particular to a cardboard folding device. Background Art

[0002] Cardboard, also known as paperboard, is a thick paper sheet made of various pulps and composed of fibers interwoven with each other. The paper shell is generally used to protect the paper, and the paper shell is formed by pressing and folding the paperboard. After the paper shell is indented and folded, the paperboard becomes an openable and closable paper shell. When the cardboard is indented and folded into an openable and closable paper shell, the folding device needs to push the two ends of the cardboard to rotate and fold toward the middle. When pushing the end of the cardboard to rotate, the thrust at the side of the push plate and the middle of the push plate are different, which can easily cause the cardboard to bend at the pushed position, thereby easily producing bending marks and reducing the folding effect of the cardboard. Utility Model Content

[0003] The utility model aims to solve the problem in the prior art that the thrust forces at the side edge of the push plate and the middle position of the push plate are different, which easily leads to bending of the pushed portion of the cardboard, thus easily generating bending marks and reducing the folding effect of the cardboard, and proposes a cardboard folding device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A cardboard folding device is designed, including a base frame, the upper end of the base frame is fixedly connected to a support plate, folding plates are rotatably connected to both sides of the support plate, first electric telescopic rods are rotatably connected to both sides of the upper end of the support plate, the telescopic ends of each of the first electric telescopic rods can be rotatably connected to different folding plates, both sides of each of the folding plates are connected to fixed frames, the internal upper end of each of the fixed frames is connected to a plurality of first rollers at equal intervals along the length direction, the internal bottom end of each of the fixed frames is connected to a plurality of second rollers at equal intervals along the length direction, a mounting plate is fixedly connected to the base frame, the upper end of the mounting plate is fixedly connected to the second electric telescopic rod, the telescopic end of the second electric telescopic rod is fixedly connected to an indentation plate, and the indentation plate is located above the support plate.

[0006] Preferably, an anti-slip pad is fixedly connected to the bottom end of the base frame.

[0007] Preferably, a high-hardness, wear-resistant, and corrosion-resistant nano-ceramic composite coating layer is sprayed on the upper end of the support plate.

[0008] Preferably, the upper end surface of the folding plate is flush with the upper end surface of the supporting plate.

[0009] Preferably, both sides of the indentation plate are connected with anti-arching mechanisms for preventing the cardboard from arching, and the anti-arching mechanism includes a groove plate, which is rotatably connected to the side of the indentation plate, and an extrusion plate is slidably inserted into the groove of the groove plate, and a first spring is fixedly connected in the groove of the groove plate, one end of the first spring is fixedly connected to the extrusion plate, and a second spring is fixedly connected to the bottom end of the groove plate, and one end of the second spring is fixedly connected to the indentation plate.

[0010] Preferably, the side of the extrusion plate away from the groove plate is an arc structure.

[0011] The utility model provides a cardboard folding device, which has the following beneficial effects:

[0012] After the two first electric telescopic rods are started, the two folding plates are pushed to rotate toward each other at a set angle. After the folding plates rotate, the cardboard is driven to rotate and fold. During the rotation and folding process of the cardboard, the side edges of the cardboard are limited and fixed by the first roller and the second roller, and the cardboard between the two fixed frames is pushed by the folding plates, so that the cardboard is evenly stressed when folded, and no bending will occur during the rotation and folding process of the cardboard, thereby no bending marks will be generated, thereby improving the cardboard folding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a cardboard folding device proposed by the utility model Figure 1 ;

[0014] Figure 2 A schematic diagram of the structure of a cardboard folding device proposed by the utility model Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the connection structure between the indentation plate and the anti-arching mechanism in a cardboard folding device proposed by the utility model;

[0016] Figure 4 This is a cross-sectional structural schematic diagram of the connection between the indentation plate and the anti-arching mechanism in a cardboard folding device proposed by the utility model;

[0017] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point A above.

[0018] In the figure: 1, base frame; 2, support plate; 3, folding plate; 4, first electric telescopic rod; 5, fixing frame; 6, first roller; 7, second roller; 8, mounting plate; 9, second electric telescopic rod; 10, indentation plate; 11, anti-arching mechanism; 111, groove plate; 112, extrusion plate; 113, first spring; 114, second spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example 1: Reference Figure 1-3 A cardboard folding device comprises a base frame 1, the bottom end of the base frame 1 is fixedly connected with an anti-slip pad, the upper end of the base frame 1 is fixedly connected with a support plate 2, the upper end of the support plate 2 is sprayed with a high-hardness, wear-resistant and anti-corrosion nano-ceramic composite coating layer, folding plates 3 are rotatably connected on both sides of the support plate 2, the upper end surface of the folding plate 3 is flush with the upper end surface of the support plate 2, and the upper end of the support plate 2 is rotatably connected with a first electric telescopic rod 4 on both sides, and the telescopic end of each first electric telescopic rod 4 can be rotatably connected to different folding plates 3, and each folding plate 3 is connected with a fixed frame 5 on both sides, and the internal upper end of each fixed frame 5 is connected with a plurality of first rollers 6 at equal intervals along the length direction, and the internal bottom end of each fixed frame 5 is connected with a plurality of second rollers 7 at equal intervals along the length direction, and a mounting plate 8 is fixedly connected to the base frame 1, and the upper end of the mounting plate 8 is fixedly connected with a second electric telescopic rod 9, and the telescopic end of the second electric telescopic rod 9 is fixedly connected with an indentation plate 10, and the indentation plate 10 is located above the support plate 2.

[0021] Working process: the cardboard is passed through the gap between the first roller 6 and the second roller 7, and the cardboard is pushed to move so that the middle position of the cardboard is located on the support plate 2. After the second electric telescopic rod 9 is started, it drives the indentation plate 10 to move downward by a set distance. The indentation plate 10 moves downward by a set distance to contact the cardboard and indent it. After the indentation plate 10 moves downward by a set distance, the two first electric telescopic rods 4 are started. After the two first electric telescopic rods 4 are started, they push the two folding plates 3 to rotate toward each other by a set angle. After the folding plates 3 rotate, the cardboard is driven to rotate and fold. During the rotation and folding process of the cardboard, the side edges of the cardboard are limited and fixed by the first roller 6 and the second roller 7, and the cardboard between the two fixed frames 5 is pushed by the folding plate 3, so that the cardboard is evenly stressed when folded, and no bending will occur during the rotation and folding process of the cardboard, thereby no bending marks will be generated, thereby improving the cardboard folding effect.

[0022] Embodiment 2: In Embodiment 1, when two folding plates 3 fold the paperboard, there is a certain distance between the end of the folding plate 3 connected to the support plate 2 and the end of the fixing frame 5, resulting in a lack of limit on the upper end of the paperboard between the end of the folding plate 3 connected to the support plate 2 and the end of the fixing frame 5, which makes the paperboard easily arched when folded. Figure 4-5As another preferred embodiment of the utility model, the difference from embodiment 1 is that both sides of the creasing plate 10 are connected with an anti-arching mechanism 11 for preventing the cardboard from arching. The anti-arching mechanism 11 includes a groove plate 111, which is rotatably connected to the side of the creasing plate 10, and a pressing plate 112 is slidably inserted in the groove of the groove plate 111. The side of the pressing plate 112 away from the groove plate 111 is an arc structure. A first spring 113 is fixedly connected in the groove of the groove plate 111, and one end of the first spring 113 is fixedly connected to the pressing plate 112. The bottom end of the groove plate 111 is fixedly connected with a second spring 114, and one end of the second spring 114 is fixedly connected to the creasing plate 10. When the creasing plate 10 squeezes the cardboard, the pressing plate 112 and There is a certain gap between the indentation plates 10. When the folding plate 3 rotates to fold the cardboard, the rotating cardboard contacts the squeezing plate 112, the cardboard squeezes the squeezing plate 112, the squeezing plate 112 squeezes the first spring 113, and the first spring 113 generates an elastic force after being compressed. The elastic force generated by the first spring 113 causes the squeezing plate 112 to squeeze the cardboard, so that the cardboard will not arch when folded. As the folding plate 3 continues to rotate, the folding plate 3 pushes the squeezing plate 112 to rotate upward, and the squeezing plate 112 drives the groove plate 111 to rotate. After the groove plate 111 rotates, it pulls the second spring 114. After the second spring 114 is pulled, it generates an elastic force. After the cardboard is folded and contacted, the second spring 114 drives the groove plate 111 to rotate and reset, and the first spring 113 drives the squeezing plate 112 to reset.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cardboard folding device, characterized in that: It comprises a base frame (1), wherein: The upper end of the base frame (1) is fixedly connected to a support plate (2), and folding plates (3) are rotatably connected to both sides of the support plate (2). First electric telescopic rods (4) are rotatably connected to both sides of the upper end of the support plate (2), and the telescopic ends of each of the first electric telescopic rods (4) are rotatably connected to different folding plates (3). Both sides of each of the folding plates (3) are connected to a fixing frame (5), and the upper end of each of the fixing frames (5) is connected to a plurality of first rollers (6) at equal intervals along the length direction, and the lower end of each of the fixing frames (5) is connected to a plurality of second rollers (7) at equal intervals along the length direction. A mounting plate (8) is fixedly connected to the base frame (1), and the upper end of the mounting plate (8) is fixedly connected to a second electric telescopic rod (9), and the telescopic end of the second electric telescopic rod (9) is fixedly connected to an indentation plate (10), and the indentation plate (10) is located above the support plate (2).

2. The cardboard folding device according to claim 1, characterized in that: An anti-skid pad is fixedly connected to the bottom end of the base frame (1).

3. The cardboard folding device according to claim 1, characterized in that: The upper end of the support plate (2) is sprayed with a high-hardness, wear-resistant, and corrosion-resistant nano-ceramic composite coating layer.

4. The cardboard folding device according to claim 1, characterized in that: The upper end surface of the folding plate (3) is flush with the upper end surface of the supporting plate (2).

5. The cardboard folding device according to claim 1, characterized in that: Both sides of the creasing plate (10) are connected with an anti-arching mechanism (11) for preventing the cardboard from arching. The anti-arching mechanism (11) comprises a groove plate (111), the groove plate (111) is rotatably connected to the side of the creasing plate (10), a pressing plate (112) is slidably inserted in the groove of the groove plate (111), a first spring (113) is fixedly connected in the groove of the groove plate (111), one end of the first spring (113) is fixedly connected to the pressing plate (112), and a second spring (114) is fixedly connected to the bottom end of the groove plate (111), and one end of the second spring (114) is fixedly connected to the creasing plate (10).

6. The cardboard folding device according to claim 5, characterized in that: The side of the extrusion plate (112) away from the groove plate (111) is an arc structure.

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