Paper breaking device special for high-gram-weight white paperboard

Abstract

A special paper breaking device for a high-gram-weight white paperboard relates to the technical field of paper breaking devices and comprises a supporting seat, an angle-adjustable protective frame is hinged to the supporting seat, a cutting knife is rotatably arranged on the protective frame, and the cutting knife is driven by a transmission device to reciprocate in the width direction of the white paperboard. The paper breaking system solves the problems that in the prior art, a paper breaking system of a paper machine is mostly used on tissue paper or low-gram-weight paper sheets, paper breaking knives are not used in the production process of high-gram-weight paper sheets mostly, water needles are used for paper breaking only at the wet portion, the existing paper breaking knife design is often difficult to break paper at the dry portion, and the paper breaking efficiency is high. However, the problems that a drying part is blocked, even a dry net is torn and equipment is damaged due to a large amount of damaged paper caused by paper breaking at a wet part are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cutting devices, in particular to a special paper cutting device for high-weight white paperboards. Background Art

[0002] A papermaking machine is the general term for the complete set of equipment that transforms pulp into a paper web. This includes the main components, such as the headbox, wire section, press section, dryer, calender, reel, and transmission, as well as auxiliary systems such as steam, water, vacuum, lubrication, and heat recovery. There are many types of papermaking machines, but they are generally categorized by the type of sheet former used, including long wire, rotary wire, gap wire, and a combination of long and rotary wire. They can also be divided into cultural paper machines, board machines, toilet paper machines, and specialty paper machines based on their primary product type. Alternatively, they can be divided into thin paper machines, board machines, and conventional paper machines based on the thickness of the paper produced.

[0003] The prior art discloses a patent with an announcement level of CN214136336U. The solution includes a platform with a paper trough inside the platform for placing finished paper for cutting; a bracket is provided above the platform, one end of the bracket is provided with a horizontally arranged stepper motor, the output shaft of the stepper motor is provided with a lead screw, and the lead screw is connected to the other end of the bracket; a movable seat is threadedly connected to the lead screw, a cylinder is provided vertically downward on the movable seat, a cutting knife is provided on the piston rod of the cylinder, and photoelectric sensors are provided on both sides of the stepper motor, and the photoelectric sensors are used to detect the distance moved by the movable seat on the lead screw.

[0004] The existing devices including the above patents have gradually exposed the shortcomings of the existing technology as they are used, mainly in the following aspects:

[0005] Existing paper machine paper breaking systems are mostly used on thin paper or low-weight paper. In the production process of high-weight paper, paper cutters are mostly not used, and water needles are used to break the paper in the wet end. The existing paper cutter design is often difficult to break the paper in the dry end. However, breaking the paper in the wet end will cause a large amount of paper damage, leading to cylinder blockage in the drying section, and even tearing the dryer mesh and damaging the equipment.

[0006] In summary, the existing technology has obvious inconveniences and defects in actual use, so it is necessary to improve it. Utility Model Content

[0007] In response to the defects in the existing technology, the utility model provides a special paper breaking device for high-weight white cardboard, which is used to solve the problem that the paper breaking system of the paper machine in traditional technology is mostly used on thin paper or low-weight paper sheets. In the production process of high-weight paper sheets, paper breaking knives are mostly not used, and water needles are only used to break the paper in the wet end. The existing paper breaking knife design is often difficult to break the paper in the dry end. However, breaking the paper in the wet end will cause a large amount of paper damage, resulting in clogging of the drying cylinder, and even tearing the dryer net and squeezing the equipment.

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A special paper cutting device for high-weight white cardboard includes a support base, a protective frame with an adjustable angle is hinged on the support base, a cutting knife is rotatably provided on the protective frame, and the cutting knife is driven by a transmission device to move back and forth along the width direction of the white cardboard.

[0010] As an optimized solution, a cylinder is hinged on the support seat, and the telescopic end of the cylinder is hinged to the protective frame.

[0011] As an optimized solution, the bottom of the protective frame is hinged to the support seat through a hinge seat.

[0012] As an optimized solution, an angle adjustment seat is fixedly connected to the protective frame at an angle, and a hinge plate is fixedly connected to the telescopic end of the cylinder, and the hinge plate is hinged to the angle adjustment seat.

[0013] As an optimized solution, the transmission device includes a chain transmission mechanism, and the chain movement direction of the chain transmission mechanism is the same as the width direction of the white paperboard.

[0014] As an optimized solution, the cutting knife is rotatably mounted on the output shaft of the motor.

[0015] As an optimized solution, a connecting seat is fixedly connected to the chain of the chain transmission mechanism, and the motor is fixedly connected to the connecting seat.

[0016] As an optimized solution, the protective frame includes a bottom transverse protective section located below the cutting knife, and a side protective section located at one end of the bottom transverse protective section.

[0017] As an optimized solution, the upper end portion of the side protection segment is arranged to extend outwardly at an angle.

[0018] As an optimized solution, the upper end of the side protection segment is higher than the cutting knife.

[0019] As an optimized solution, the plane where the cutting knife is located is inclined to the bottom transverse protection section.

[0020] As an optimized solution, the housing end of the chain transmission mechanism is fixedly connected to the bottom transverse protection section.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The device improves the production efficiency of the paper machine and saves paper threading time. The paper threading cutter is easy to operate and maintain and can easily cut the paper web.

[0023] Reduce labor intensity, achieve paper breaking at the dry end, reduce raw material loss caused by paper breaking at the wet end, and reduce the possibility of damage to the dryer fabric and equipment;

[0024] When the paper machine needs to cut the paper, the motor will start, and the cutter will move horizontally along the chain on the chain transmission mechanism as needed, moving from the operating side to the transmission side, or from the transmission side to the operating side, to cut the entire paper. The cutter angle can be adjusted by the extension and retraction of the cylinder to better play its role. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0026] Figure 1 It is a structural diagram of the present utility model.

[0027] In the figure: 1-support base, 2-cylinder, 3-hinge plate, 4-angle adjustment base, 5-hinge base, 6-bottom lateral protection section, 7-side protection section, 8-chain transmission mechanism, 9-cutting knife, 10-motor, 11-connecting base. DETAILED DESCRIPTION

[0028] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0029] like Figure 1 As shown, a special paper cutting device for high-weight white cardboard includes a support base 1, a protective frame with an adjustable angle is hinged on the support base 1, a cutting knife 9 is rotatably provided on the protective frame, and the cutting knife 9 is driven by a transmission device to move back and forth along the width direction of the white cardboard.

[0030] A cylinder 2 is hinged on the support base 1, and a telescopic end of the cylinder 2 is hinged to the protective frame.

[0031] The bottom of the protective frame is hinged to the support base 1 through the hinge base 5.

[0032] An angle adjustment seat 4 is fixedly connected to the protection frame at an angle, and a hinge plate 3 is fixedly connected to the telescopic end of the cylinder. The hinge plate 3 is hinged to the angle adjustment seat 4.

[0033] The transmission device includes a chain transmission mechanism 8, and the chain movement direction of the chain transmission mechanism 8 is the same as the width direction of the white paper board.

[0034] The chain transmission mechanism 8 includes a reducer, the output end of the reducer is connected to a sprocket, the sprocket is connected to a chain, and the side wall of the chain is fixedly connected to a connecting seat 11. The connecting seat 11 is driven to reciprocate by the forward and reverse rotation of the reducer. Because its structure is a common device in daily life, and because the specific structure does not belong to the innovation of this solution, it will not be elaborated here.

[0035] The cutter 9 is rotatably mounted on the output shaft of the motor 10 .

[0036] A connecting seat 11 is fixedly connected to the chain of the chain transmission mechanism 8 , and the motor 10 is fixedly connected to the connecting seat 11 .

[0037] The protection frame includes a bottom transverse protection section 6 located below the cutting knife 9 and a side protection section 7 located at one end of the bottom transverse protection section 6 .

[0038] The upper end of the side protection segment 7 is arranged to extend outward at an angle.

[0039] The upper end of the side protection segment 7 is higher than the cutting knife 9 .

[0040] The plane where the cutting knife 9 is located is inclined to the bottom transverse protection section 6.

[0041] The housing end of the chain transmission mechanism 8 is fixed to the bottom transverse protection section 6 .

[0042] The working principle of this device is:

[0043] The device improves the production efficiency of the paper machine and saves paper threading time. The paper threading cutter 9 is easy to operate and maintain and can easily cut the paper web.

[0044] Reduce labor intensity, achieve paper breaking at the dry end, reduce raw material loss caused by paper breaking at the wet end, and reduce the possibility of damage to the dryer fabric and equipment;

[0045] When the paper machine needs to cut the paper, the motor 10 will start, and the cutter 9 will move laterally along the chain on the chain transmission mechanism 8 as needed, from the operating side to the transmission side, or from the transmission side to the operating side, to cut the entire paper. The angle of the cutter 9 can be adjusted by extending and retracting the cylinder 2 to better play its role.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. Special paper cutting device for high-weight white cardboard, characterized by: The invention comprises a support base (1), a protective frame with an adjustable angle is hinged on the support base (1), a cutting knife (9) is rotatably provided on the protective frame, and the cutting knife (9) is driven by a transmission device to move back and forth along the width direction of the white paper board; A cylinder (2) is hinged on the support seat (1), and the telescopic end of the cylinder (2) is hinged to the protective frame.

2. The paper cutting device for high-weight white paperboard according to claim 1 is characterized in that: The bottom of the protective frame is hinged to the support seat (1) via a hinge seat (5).

3. The paper cutting device for high-weight white paperboard according to claim 2, characterized in that: An angle adjustment seat (4) is fixedly connected to the protection frame in an inclined manner, a hinge plate (3) is fixedly connected to the telescopic end of the cylinder, and the hinge plate (3) is hinged to the angle adjustment seat (4).

4. The paper cutting device for high-weight white paperboard according to claim 3 is characterized in that: The transmission device comprises a chain transmission mechanism (8), and the chain movement direction of the chain transmission mechanism (8) is the same as the width direction of the white paper board.

5. The paper cutting device for high-weight white paperboard according to claim 4 is characterized in that: The cutting knife (9) is rotatably mounted on the output shaft of the motor (10); a connecting seat (11) is fixedly connected to the chain of the chain transmission mechanism (8), and the motor (10) is fixedly connected to the connecting seat (11).

6. The paper cutting device for high-weight white paperboard according to claim 5, characterized in that: The protective frame comprises a bottom transverse protective section (6) located below the cutting knife (9), and a side protective section (7) located at one end of the bottom transverse protective section (6).

7. The paper cutting device for high-weight white paperboard according to claim 6, characterized in that: The upper end of the side protection section (7) is arranged to extend outwards obliquely.

8. The paper cutting device for high-weight white paperboard according to claim 7, characterized in that: The upper end of the side protection section (7) is higher than the cutting knife (9).

9. The paper cutting device for high-weight white paperboard according to claim 8, characterized in that: The plane where the cutting knife (9) is located is inclined to the bottom transverse protection section (6).

10. The paper cutting device for high-weight white paperboard according to claim 9, characterized in that: The housing end of the chain transmission mechanism (8) is fixedly connected to the bottom transverse protection section (6).

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