Line pressing device of paper separating machine for carton production
By installing a sponge block in the creasing device to wet the creasing rollers with water, the problem of cracking caused by excessively dry cardboard is solved, ensuring the quality of carton production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, excessively high dryness of cardboard during carton production can cause the creases to burst during creasing, affecting the quality of the carton.
A sponge block is embedded in the inner groove of the horizontal plate in the creasing device. Water is supplied to the sponge block through the water inlet pipe, so that the water wetted by the sponge block comes into contact with the creasing wheel, reducing the dryness of the creasing area of the cardboard and preventing the creasing from bursting.
By wetting the surface of the crease rollers with water, the dryness of the crease area of the cardboard is reduced, preventing crease bursting and ensuring the quality of the carton.
Smart Images

Figure CN224075138U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carton creasing technology, specifically a creasing device for a paper slitting machine used in carton production. Background Technology
[0002] Cardboard boxes commonly use three-layer or five-layer paper, with seven-layer paper being less common. Each layer consists of linerboard, corrugated paper, core paper, and face paper. Linerboard and face paper can be made of kraft paper or kraft paper, while corrugated paper is used for the core paper. The colors and textures of various types of paper are different, and the paper produced by different manufacturers is also different. In the production of cardboard boxes, a creasing device is needed to press out the fold lines of the cardboard box, which facilitates the later folding and shaping of the cardboard box. Current technology uses a creasing machine for creasing processing.
[0003] Some cardboard has a high degree of dryness after drying, which can easily cause the creases to burst during the creasing process in carton production, affecting the quality of the final carton. Therefore, we propose a creasing device for a paper slitting machine used in carton production. Utility Model Content
[0004] The purpose of this utility model is to provide a creasing device for a paper slitting machine used in carton production. By setting a horizontal plate above or below the rotating roller, and setting an inner groove containing a sponge block that aligns with and contacts the creasing wheel, the sponge block can be moistened with water. When the creasing wheel rotates, the water on the sponge block is removed. During creasing, the dryness of the creasing area of the cardboard is reduced, making it less prone to cracking and ensuring the quality of the final carton. This solves the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a creasing device for a paper slitting machine used in carton production, comprising a base and rotating rollers. Two first side plates are vertically fixed on both sides of the middle position of the base surface. Two rotating rollers are rotatably mounted laterally between the two first side plates. A creasing wheel is also mounted on the outer ring of each rotating roller. A horizontal plate is horizontally fixed between the first side plates above the upper rotating roller and below the lower rotating roller. An inner groove is opened inside the horizontal plate, and a sponge block is embedded in the inner groove. The creasing wheel contacts the surface of the sponge block through an opening on the surface of the horizontal plate that communicates with the inner groove.
[0006] By adopting the above technical solution, the cardboard used to produce cartons is pressed into indentations by the pressure rollers between the upper and lower rollers. When the pressure rollers rotate, they come into contact with the sponge blocks in the inner groove, allowing the water from the sponge blocks to come into contact with the surface of the pressure rollers. This reduces the dryness of the cardboard in the pressure area during the pressure process, making it less likely for the lines to burst.
[0007] Optionally, a second side plate is vertically fixed on both the front and rear sides of the base, and a support roller is rotatably installed between the second side plates at the front and rear ends of the base.
[0008] By adopting the above technical solution, the support rollers can be used to support the paperboard being transported.
[0009] Optionally, the front and rear support rollers of the base have the same size and the same height.
[0010] By adopting the above technical solution, cardboard can be conveyed from the front or rear end between the upper and lower rollers.
[0011] Optionally, a stepper motor is mounted on the surface of the first side plate on the side of the roller, and the stepper motor is connected to the roller drive.
[0012] By adopting the above technical solution, the upper and lower rollers are driven to rotate in opposite directions by a stepper motor.
[0013] Optionally, a water inlet pipe is connected to the front end of the horizontal plate at the inner tank position, and the water inlet pipe communicates with the inside of the inner tank.
[0014] By adopting the above technical solution, clean water is injected into the inner tank through the water inlet pipe, thereby wetting the sponge block.
[0015] Optionally, an electrically controlled valve is installed on the water inlet pipe, which controls the opening and closing of the water inlet pipe.
[0016] By adopting the above technical solution, the water inlet pipe can be opened periodically through an electrically controlled valve, and clean water can be replenished to the sponge block regularly.
[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:
[0018] 1. The technical solution of this application sets a horizontal plate above or below the rotating roller, and sets an inner groove containing a sponge block that is aligned with and in contact with the crease roller. This allows the sponge block to be moistened with water. When the crease roller rotates, the water on the sponge block is removed. During crease pressing, the dryness of the crease area of the cardboard is reduced, making it less prone to cracking and ensuring the quality of the final carton.
[0019] 2. The technical solution of this application can achieve the purpose of supporting the cardboard that is transported between the upper and lower rotating rollers by installing support rollers on the upper and lower sides of the base through the second side plate. Attached Figure Description
[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0021] Figure 1 This is a schematic diagram of the overall structure of the creasing device of the paper slitting machine for carton production according to this utility model;
[0022] Figure 2This is a schematic diagram of the internal structure of the creasing device of the paper slitting machine for carton production according to this utility model.
[0023] In the diagram: 1. Base; 11. First side plate; 12. Second side plate; 2. Rotary roller; 21. Pressing wheel; 22. Stepper motor; 3. Horizontal plate; 31. Inner groove; 32. Opening; 33. Sponge block; 34. Water inlet pipe; 4. Support roller. Detailed Implementation
[0024] Please see Figure 1-2 This utility model provides a technical solution: a creasing device for a paper slitting machine for carton production, including a base 1 and a rotating roller 2. The base 1 has two first side plates 11 fixed vertically on both sides of the middle position of the surface. The first side plates 11 on both sides are parallel to each other. Two rotating rollers 2 are rotatably installed between the two first side plates 11. The outer ring of the rotating roller 2 is also equipped with a creasing wheel 21. The creasing wheel 21 of the upper rotating roller 2 and the creasing wheel 21 of the lower rotating roller 2 have textures that cooperate with each other to press indentations into the cardboard.
[0025] A stepper motor 22 is mounted on the surface of the first side plate 11 on the side of the roller 2. The stepper motor 22 is connected to the roller 2 for transmission. When started, the stepper motor 22 can drive the upper and lower rollers 2 to rotate, and at the same time drive the pressure roller 21 to rotate. When the upper roller 2 rotates counterclockwise and the lower roller 2 rotates clockwise, the cardboard can be conveyed to the rear end and the pressure roller 21 can press the indentation on its surface. Conversely, when the upper roller 2 rotates clockwise and the lower roller 2 rotates counterclockwise, the cardboard can be conveyed to the front end and the pressure roller 21 can press the indentation on its surface.
[0026] To prevent the crease from bursting, a horizontal plate 3 is fixed between the first side plate 11 above the upper roller 2 and below the lower roller 2. The horizontal plate 3 has an inner groove 31, and a sponge block 33 is embedded in the inner groove 31. An opening 32 communicating with the inner groove 31 is opened on the surface above the inner groove 31 of the lower horizontal plate 3 and below the inner groove 31 of the upper horizontal plate 3. The crease roller 21 contacts the surface of the sponge block 33 through the opening 32 communicating with the inner groove 31. When in use, the sponge block 33 is moistened with water. When the crease roller 21 rotates, it contacts the sponge block 33 and rotates. The surface also comes into contact with water. Thus, when the crease roller 21 acts on the surface of the cardboard, the cardboard in the crease area will be wetted with water, reducing the dryness and making it less likely to burst.
[0027] Additionally, a water inlet pipe 34 is connected to the front end of the horizontal plate 3 at the inner tank 31. The water inlet pipe 34 is connected to the inside of the inner tank 31. An electric control valve is installed on the water inlet pipe 34. The electric control valve controls the opening and closing of the water inlet pipe 34. When in use, the water inlet pipe 34 is connected to the clean water supply pipe. The electric control valve can be opened periodically to replenish clean water to the sponge block 33.
[0028] The base 1 is also vertically fixed with second side plates 12 on both the front and rear sides. The second side plates 12 on both sides are parallel to each other. Support rollers 4 are rotatably installed between the second side plates 12 at the front and rear ends of the base 1. The support rollers 4 at the front and rear ends of the base 1 are the same size and the support rollers 4 at the front and rear ends are the same height, so that the cardboard can be guided and supported by the support rollers 4 when it passes between the upper and lower rotating rollers 2.
[0029] In use, the entire device is placed at one end of the cardboard conveyor belt, with the stepper motor 22 connected to the control equipment, and the water inlet pipe 34 connected to the clean water supply pipe. The electrically controlled valve installed on the water inlet pipe 34 is also connected to the control equipment. The cardboard is conveyed to the top of the base 1 via the conveyor belt. Under the support of the support roller 4, it passes between the upper and lower rotating rollers 2. When the rotating rollers 2 are driven to rotate by the stepper motor 22, they can drive the creasing rollers 21 to rotate simultaneously. The upper and lower creasing rollers 21 work together to press indentations on the surface of the cardboard. During the creasing process, the electric valve opens periodically to allow clean water to enter the inner groove 31 and wet the sponge block 33. When the creasing roller 21 rotates, it contacts the sponge block 33 in the inner groove 31 through the opening 32, thus allowing a small amount of clean water to be applied to the surface of the creasing roller 21. When the creasing roller 21 acts on the surface of the cardboard, it will cause the cardboard in the creasing area to be wetted with clean water, thereby reducing its dryness and making it less prone to cracking.
Claims
1. A creasing device of a paper dividing machine for carton production, comprising a base (1) and a rotating roller (2), characterized in that: The first side plate (11) is vertically fixed on both sides of the middle position of the surface of the base (1), two rotating rollers (2) are horizontally and rotatably installed between the two first side plates (11), and a wire pressing wheel (21) is further installed on the outer ring of the rotating roller (2). Above the upper rotating roller (2) and below the lower rotating roller (2), the horizontal plate (3) is fixed between the first side plates (11), the inner groove (31) is formed in the horizontal plate (3), the sponge block (33) is embedded in the inner groove (31), and the wire pressing wheel (21) is in surface contact with the sponge block (33) through the opening (32) formed in the surface of the horizontal plate (3) and communicating with the inner groove (31).
2. The creasing device of a paper dividing machine for carton production according to claim 1, characterized in that: The second side plate (12) is vertically fixed on both sides of the front end and the rear end of the base (1), and the support roller (4) is horizontally and rotatably installed between the second side plates (12) of the front end and the rear end of the base (1).
3. The creasing device of a paper dividing machine for carton production according to claim 2, characterized in that: The support rollers (4) at the front end and the rear end of the base (1) are of the same size and have the same height.
4. The creasing device of a paper divider for carton production according to claim 1, characterized in that: The step motor (22) is installed on the surface of the first side plate (11) at the side edge of the rotating roller (2), and the step motor (22) is in driving connection with the rotating roller (2).
5. The creasing device of a paper dividing machine for carton production according to claim 1, characterized in that: The front end of the horizontal plate (3) at the position of the inner groove (31) is connected with the water inlet pipe (34), and the water inlet pipe (34) communicates with the inside of the inner groove (31).
6. The creasing device of a paper dividing machine for carton production according to claim 5, characterized in that: An electric control valve is installed on the water inlet pipe (34), and the electric control valve controls the opening and closing of the water inlet pipe (34).