Corrugated roller set gap adjusting structure of corrugated tip-to-corrugated tip paperboard machine

Abstract

The utility model discloses a corrugated roller group gap adjusting structure of a corrugated tip-to-corrugated tip paperboard machine, which comprises a rack, a rocker arm, an upper corrugated roller and a lower corrugated roller, the corrugated tips of the upper corrugated roller and the lower corrugated roller are opposite, the upper corrugated roller is arranged on the rack, one end of the rocker arm is hinged with the rack, and the lower corrugated roller is arranged on the rocker arm; the rack is provided with a buffer lifting mechanism used for driving the rocker arm to swing upwards and a pitched roof gap adjusting mechanism used for limiting the swing height of the rocker arm through a movable inclined face, and the ridge tip gap between the upper corrugated roller and the lower corrugated roller is adjusted by changing the relative position of the movable inclined face and the rocker arm. The lower corrugated roller is arranged on the rocker arm, the rocker arm is jacked up through the buffer lifting mechanism (such as an air cylinder and an oil cylinder) instead of hard jacking, a certain buffer effect is achieved, and vibration during working is reduced; in addition, the rocker arm is driven to move downwards through the movable inclined surface of the inclined top gap adjusting mechanism, so that the gap between the corrugation tips between the upper corrugating roller and the lower corrugating roller is adjusted.

Description

Technical Field

[0001] This utility model relates to a corrugated cardboard machine with tip-to-tip corrugation, and more particularly to a corrugated roller group gap adjustment structure for a corrugated cardboard machine with tip-to-tip corrugation. Background Technology

[0002] Currently, a new type of corrugated cardboard with flute-to-flute construction is emerging in the market. Taking four-layer corrugated cardboard as an example, it consists of a face paper, a liner paper, and two layers of corrugated paper located between the face paper and the liner paper with their flute tips touching. Because the flute tips of the two middle layers of cardboard are opposite each other, they provide good support. Therefore, it can replace the traditional five-layer cardboard.

[0003] However, in the production process of two-layer corrugated paper with the flutes touching, two corrugated rollers, one with a flute tip to the other, are needed to press and heat the flutes of the two corrugated core sheets (one of which has its flute tip coated with glue) to achieve bonding. Therefore, the gap adjustment of the two corrugated rollers is crucial. Currently, many patent publications for corrugated machines with flute tips to the other only provide theoretical foundations and do not fully describe the gap adjustment structure of the two corrugated rollers, neglecting the production requirements of paper of different thicknesses. Furthermore, since corrugated machines with flute tips to the other two corrugated rollers each have auxiliary corrugated rollers to process the upper and lower corrugated core sheets separately, the traditional corrugated roller group gap adjustment structure cannot be directly applied. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonable structure for adjusting the gap of the corrugated roller group of a corrugated cardboard machine, which has high adjustment accuracy and meets the requirements of paper of different thicknesses.

[0005] The purpose of this utility model is achieved as follows:

[0006] A corrugated roll gap adjustment structure for a tip-to-tip cardboard machine includes a frame, a rocker arm, and upper and lower corrugated rolls with opposite tips. The upper corrugated roll is mounted on the frame, one end of the rocker arm is hinged to the frame, and the lower corrugated roll is mounted on the rocker arm. The frame is equipped with a buffer lifting mechanism for driving the rocker arm to swing upward, and a tilting adjustment mechanism that limits the swing height of the rocker arm by a movable inclined surface. By changing the relative position of the movable inclined surface and the rocker arm, the tip gap between the upper and lower corrugated rolls can be adjusted.

[0007] The objective of this utility model can also be achieved by the following technical measures:

[0008] As a more specific embodiment, the inclined top adjustment mechanism includes an inclined block and a push rod. The bottom surface of the inclined block is provided with a movable inclined surface, which abuts against and slides with the top of the other end of the rocker arm. The push rod is mounted on the frame and is used to push the inclined block to move laterally.

[0009] As a further embodiment, the other end of the rocker arm is provided with a lower inclined surface, which abuts against the movable inclined surface of the inclined block.

[0010] As a further embodiment, the rocker arm is provided with a wedge block, which swings in coordination with the rocker arm, and the top surface of the wedge block is provided with the lower inclined surface.

[0011] As a further option, the inclined block is in a transverse linear sliding engagement with the frame.

[0012] As a further embodiment, the push rod is a screw rod, which is threadedly connected to the frame, and one end of the screw rod is rotatably engaged with the inclined block.

[0013] As a further option, the buffer lifting mechanism is a pneumatic cylinder or a hydraulic cylinder.

[0014] As a further solution, a collision-prevention limiting mechanism is provided between the frame and the rocker arm to limit the rising height of the rocker arm and prevent the upper and lower corrugated rollers from colliding.

[0015] As a further embodiment, an auxiliary upper corrugated roll and an auxiliary lower corrugated roll are respectively provided on the sides of the upper corrugated roll and the lower corrugated roll, and a sizing mechanism is also provided on the side of the upper corrugated roll or the lower corrugated roll; the upper corrugated roll and the auxiliary upper corrugated roll work together to squeeze the first wavy corrugated paper, and the lower corrugated roll and the auxiliary lower corrugated roll work together to squeeze the second wavy corrugated paper. The sizing mechanism is used to apply sizing to the tip of one of the wavy corrugated papers. The upper corrugated roll and the lower corrugated roll work together to bring the tips of the first wavy corrugated paper and the second wavy corrugated paper together.

[0016] As a further option, the angle α between the movable inclined plane and the horizontal plane is 3 to 8 degrees.

[0017] The beneficial effects of this utility model are as follows:

[0018] The lower corrugated roller of this invention is mounted on a rocker arm. The rocker arm is lifted by a buffer lifting mechanism (such as a cylinder or hydraulic cylinder) rather than being lifted rigidly, which has a certain buffering effect and reduces vibration during operation. In addition, the rocker arm is moved downward by the movable inclined surface of the inclined adjustment mechanism to achieve adjustment of the corrugation tip gap between the upper and lower corrugated rollers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of another embodiment of the present utility model. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Example 1, see Figures 1 to 2 As shown, a corrugated roller group gap adjustment structure for a corrugated cardboard machine with tip-to-tip includes a frame 3, a rocker arm 25, and an upper corrugated roller 1 and a lower corrugated roller 2 with opposite tips. The upper corrugated roller 1 is mounted on the frame 3. One end of the rocker arm 25 is hinged to the frame 3 via a fulcrum 251, and the lower corrugated roller 2 is mounted on the rocker arm 25. The frame 3 is provided with a buffer lifting mechanism 31 for driving the rocker arm 25 to swing upward, and a tilting adjustment mechanism that limits the swing height of the rocker arm 25 by a movable inclined surface. By changing the relative position of the movable inclined surface and the rocker arm 25, the tip gap between the upper corrugated roller 1 and the lower corrugated roller 2 can be adjusted.

[0025] The inclined top adjustment mechanism includes an inclined block 33 and a push rod 32. The bottom surface of the inclined block 33 is provided with a movable inclined surface, which abuts against and slides with the top of the other end of the rocker arm 25. The push rod 32 is mounted on the frame 3 and is used to push the inclined block 33 to move laterally.

[0026] The other end of the rocker arm 25 is provided with a lower inclined surface 252, which abuts against the movable inclined surface of the inclined block 33.

[0027] The inclined block 33 is in lateral linear sliding engagement with the frame 3.

[0028] The push rod 32 is a screw rod, which is threadedly connected to the frame 3, and one end of the screw rod is rotatably engaged with the inclined block 33.

[0029] The buffer lifting mechanism 31 is a pneumatic cylinder or a hydraulic cylinder.

[0030] The upper corrugated roller 1 and the lower corrugated roller 2 are respectively provided with a secondary upper corrugated roller and a secondary lower corrugated roller 2 on their sides. A sizing mechanism is also provided on the side of the upper corrugated roller 1 or the lower corrugated roller 2. The upper corrugated roller 1 and the secondary upper corrugated roller work together to squeeze the first wavy corrugated paper, and the lower corrugated roller 2 and the secondary lower corrugated roller work together to squeeze the second wavy corrugated paper. The sizing mechanism is used to apply sizing to the tip of one of the wavy corrugated papers. The upper corrugated roller 1 and the lower corrugated roller 2 work together to bring the tips of the first wavy corrugated paper and the second wavy corrugated paper together.

[0031] The angle α between the movable inclined plane and the horizontal plane is 3 to 8 degrees.

[0032] Its working principle is as follows: the push rod 32 is rotated manually or by motor control. The push rod 32 performs lead screw motion, which drives the inclined block 33 to move left and right, thereby changing the gap t between the upper corrugated roller 1 and the lower corrugated roller 2 to meet the production needs of paper of different thicknesses.

[0033] Example 2 differs from Example 1 in that: See [link to example 1] Figure 3 As shown, the rocker arm 25 is provided with a wedge 253, which swings in coordination with the rocker arm 25. The top surface of the wedge 253 is provided with the lower inclined surface 252. When the inclined block 33 moves left and right, the rocker arm 25 and the wedge 253 move up and down accordingly. At the same time, the wedge 253 automatically rotates, so that its lower inclined surface 252 is in close contact with the bottom surface of the inclined block 33, resulting in better support.

[0034] Example 3 differs from Example 1 or 2 in that: see [link to example 1] Figure 4 As shown, a collision-prevention limiting mechanism for restricting the rising height of the rocker arm 25 is also provided between the frame 3 and the rocker arm 25. The collision-prevention limiting mechanism includes a limiting boss 34, a limiting screw 255, a locking nut 256, and a threaded seat 254. The limiting boss 34 is located on the frame 3, and the threaded seat 254 is located below the rocker arm 25 corresponding to the limiting boss 34. The limiting screw 255 is screwed onto the top of the threaded seat 254, and the upper end of the limiting screw 255 blocks and limits the movement of the rocker arm 255 against the limiting boss 34. The locking nut 256 is connected to the outside of the limiting screw 255. When the locking nut 256 is tightened to abut against the top surface of the threaded seat 254, the height position of the limiting screw 255 is locked.

[0035] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A corrugated roller group gap adjustment structure for a tip-to-tip corrugated cardboard machine, comprising a frame (3), a rocker arm (25), and an upper corrugated roller (1) and a lower corrugated roller (2) with opposite tips, wherein the upper corrugated roller (1) is mounted on the frame (3), one end of the rocker arm (25) is hinged to the frame (3), and the lower corrugated roller (2) is mounted on the rocker arm (25); characterized in that: The frame (3) is provided with a buffer lifting mechanism (31) for driving the rocker arm (25) to swing upward, and a tilting adjustment mechanism that limits the swing height of the rocker arm (25) by a movable inclined surface. By changing the relative position of the movable inclined surface and the rocker arm (25), the tip gap between the upper corrugated roller (1) and the lower corrugated roller (2) can be adjusted.

2. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 1, characterized in that: The inclined top adjustment mechanism includes an inclined block (33) and a push rod (32). The bottom surface of the inclined block (33) is provided with a movable inclined surface, which abuts against and slides with the top of the other end of the rocker arm (25). The push rod (32) is set on the frame (3) and is used to push the inclined block (33) to move laterally.

3. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 2, characterized in that: The other end of the rocker arm (25) is provided with a lower inclined surface (252), which abuts against the movable inclined surface of the inclined block (33).

4. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 3, characterized in that: The rocker arm (25) is provided with a wedge (253), which swings in coordination with the rocker arm (25). The top surface of the wedge (253) is provided with the lower inclined surface (252).

5. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 2, 3, or 4, characterized in that: The inclined block (33) slides laterally in a straight line with the frame (3).

6. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 5, characterized in that: The push rod (32) is a screw rod, which is threadedly connected to the frame (3), and one end of the screw rod is rotatably engaged with the inclined block (33).

7. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 1, characterized in that: The buffer lifting mechanism (31) is a cylinder or a hydraulic cylinder.

8. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 1, characterized in that: A collision-prevention limiting mechanism for limiting the rising height of the rocker arm (25) is also provided between the frame (3) and the rocker arm (25).

9. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 1, characterized in that: The upper corrugated roller (1) and the lower corrugated roller (2) are respectively provided with an auxiliary upper corrugated roller and an auxiliary lower corrugated roller (2) on their sides. The upper corrugated roller (1) or the lower corrugated roller (2) is also provided with a sizing mechanism on its side. The upper corrugated roller (1) and the auxiliary upper corrugated roller work together to squeeze the first wavy corrugated paper, and the lower corrugated roller (2) and the auxiliary lower corrugated roller work together to squeeze the second wavy corrugated paper. The sizing mechanism is used to sizing the tip of one of the wavy corrugated papers. The upper corrugated roller (1) and the lower corrugated roller (2) work together to bring the tips of the first wavy corrugated paper and the second wavy corrugated paper together.

10. The corrugated roller group gap adjustment structure of the tip-to-tip cardboard machine according to claim 1, characterized in that: The angle α between the movable inclined plane and the horizontal plane is 3 to 8 degrees.

Images