CN112848500A

CN112848500A - Novel paperboard line cutting machine

Info

Publication number: CN112848500A
Application number: CN202110083695.4A
Authority: CN
Inventors: 刘鑫; 柯险峰; 梁亦兴
Original assignee: Zhejiang Saili Machinery Co ltd
Current assignee: Zhejiang Saili Intelligent Manufacturing Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-05-28

Abstract

The invention relates to a novel paperboard line cutting machine capable of accurately controlling the line cutting distance. This kind of novel cardboard secant machine is including the frame, install conveying mechanism and secant mechanism in the frame, secant mechanism is including horizontal secant sword and secant compression roller, the secant compression roller is connected its characterized in that with drive secant compression roller pivoted compression roller power supply transmission: the transverse thread cutting knife is a semicircular knife, the transverse thread cutting knife is installed on the rotating shaft, and the rotating shaft is in transmission connection with a rotating shaft power source for driving the rotating shaft to rotate. This kind of novel cardboard secant machine through the rotation of control semicircle sword, can accomplish the accurate secant at front and back two angles, compares prior art, can show improvement secant precision.

Description

Novel paperboard line cutting machine

Technical Field

The invention relates to a paperboard processing machine, in particular to a line cutting machine for cutting lines of paperboards.

Background

Some of the cardboard needs to be removed at the four corners so that the cardboard can be folded to form a box or a lid, and the cardboard needs to be grooved when folded. As shown in fig. 4, in the conventional paperboard process, a partial cutting line (shown as a dotted line in fig. 4) is firstly performed on one surface of a paperboard by a paperboard cutting machine, and then a groove is formed on the other surface of the paperboard along the cutting line by a paperboard grooving machine, so that four corners of the paperboard fall down due to the superposition of the cutting line and the grooving line, and the formed paperboard can be folded into a box or a cover. The existing paperboard cutting line machine comprises a conveying mechanism and a cutting line mechanism, wherein the cutting line mechanism comprises a transverse cutting line knife and a cutting line pressing roller, the transverse cutting line knife is a circular knife, a paperboard is conveyed by the conveying mechanism, the circular knife is driven by a power source to move upwards and lean against the cutting line pressing roller, the circular knife is matched with the cutting line pressing roller to cut a line (shown as a dotted line in figure 4) on the paperboard, and after a section of the line is cut, the power source drives the circular knife to move downwards. Then the cardboard is rotated by 90 degrees and placed on another cardboard cutting line machine for longitudinal cutting line. However, as shown in fig. 5, a circular knife is used, and a cutting line error L (4-5 mm) caused by a circular arc blade with a diameter of 4-5 mm is left on the paperboard, and the cutting line error L is unavoidable, and the error can cause the side edge of the paperboard to be easily torn, which affects the product quality.

Disclosure of Invention

In view of the defects in the prior art, the invention innovatively provides a novel paperboard cutting line machine capable of accurately controlling the cutting line distance.

This kind of novel cardboard secant machine is including the frame, install conveying mechanism and secant mechanism in the frame, secant mechanism is including horizontal secant sword and secant compression roller, the secant compression roller is connected its characterized in that with drive secant compression roller pivoted compression roller power supply transmission: the transverse thread cutting knife is a semicircular knife, the transverse thread cutting knife is installed on the rotating shaft, and the rotating shaft is in transmission connection with a rotating shaft power source for driving the rotating shaft to rotate.

The rotating shaft is provided with a longitudinal thread cutter which is a flat cutter, and one end of the cutting edge of the longitudinal thread cutter is close to one end of the cutting edge of the transverse thread cutter.

The rotating shaft is provided with a cutter holder, and the transverse cutting knife and the longitudinal cutting knife are both arranged on the cutter holder.

The tool apron is axially adjustably mounted on the rotating shaft.

According to the novel paperboard line cutting machine provided by the invention, accurate line cutting of the front corner and the rear corner can be completed by controlling the rotation of the semicircular cutter, and compared with the prior art, the line cutting precision can be obviously improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a thread cutting mechanism 1;

FIG. 3 is a schematic structural view of the thread cutting mechanism 2;

FIG. 4 is a schematic diagram of paperboard slitting and grooving;

FIG. 5 is a schematic diagram of a cutting line of the rounding knife;

FIG. 6 is a view of a semicircular knife cutting line process.

1. A conveying mechanism; 2. cutting a line and pressing a roller; 3. a rotating shaft; 4. a tool apron; 5. a transverse thread cutter; 6. a longitudinal thread cutter.

Detailed Description

As shown in figure 1, the novel paperboard cutting line machine comprises a frame, wherein a conveying mechanism 1 and a cutting line mechanism are arranged on the frame, paperboards are conveyed through the conveying mechanism 1, and then the cutting line mechanism cuts the paperboards.

The cutting line mechanism comprises a transverse cutting line knife 5 and a cutting line compression roller 2, the cutting line compression roller 2 is in transmission connection with a compression roller power source driving the cutting line compression roller 2 to rotate, the transverse cutting line knife 5 is located below the cutting line compression roller 2, the cutting line compression roller 2 actively rotates to drive the paper board to move forwards, and the transverse cutting line knife 5 is a semicircular knife as shown in figures 2 and 3. Here, it should be noted that the term "semicircular knife" does not refer to a semicircular knife, but refers to a knife that is not a full circle, as long as a notch that does not participate in cutting is appropriately provided. The transverse thread cutting knife 5 is installed on the rotating shaft 3, the rotating shaft 3 is in transmission connection with a rotating shaft power source (the rotating shaft power source is a servo motor) for driving the rotating shaft 3 to rotate, and the cutting edge of the transverse thread cutting knife 5 faces the conveying direction of the conveying mechanism 1. The rotary shaft 3 drives the transverse thread cutting knife 5 to rotate, namely the semicircular knife rotates, through the driving of a rotary shaft power source.

The line cutting principle of the semicircular knife is as follows: as shown in fig. 6, when the paperboard is located between the cutting line pressing roller 2 and the semicircular knife (the linear speed of the two is the same), the partial arc blade of the semicircular knife starts to roll into the paperboard, and as the paperboard is conveyed forward, the front angle of the paperboard starts to cut a line until the blade end of the semicircular knife leaves the paperboard, and because the left side of the blade end of the semicircular knife is a notch and cannot cut into the paperboard, no cutting line error occurs on the paperboard, and the length of the partial arc blade of the semicircular knife is the distance of the cutting line; the notch of the semicircular knife is always opposite to the paper board along with the rotation of the semicircular knife, so that the semicircular knife does not cut a line any more; the paperboard is rolled into the other end of the cutting edge of the semicircular cutter along with the continuous rotation of the semicircular cutter, a line is cut at the rear angle of the paperboard along with the forward conveying of the paperboard, the line cutting error does not occur on the paperboard due to the fact that the right side of the end of the cutting edge of the semicircular cutter is a notch, and the circular arc cutting edge at the end of the semicircular cutter can cut the paperboard to the bottom. Therefore, when the cutting edge length of the semicircular cutter and the conveying line speed of the cutting line pressing roller are both determined (the conveying line speed of the cutting line pressing roller is the same as the moving speed of the paperboard), the cutting line distance can be controlled by controlling the rotating speed of the semicircular cutter (controlled by a motion controller). If the control is accurate, the line cutting mode can enable the line cutting distance to reach zero error, thereby obviously improving the quality of the paperboard line cutting.

As described in the background, transverse cutting of the cardboard requires longitudinal cutting, which is generally done on another cutting machine, which is obviously costly and inefficient. In order to overcome the problem, the invention also installs a longitudinal thread cutter 6 on the rotating shaft 3, as shown in fig. 3, the longitudinal thread cutter 6 is a flat cutter, one end of the cutting edge of the longitudinal thread cutter 6 is close to one end of the cutting edge of the transverse thread cutter 5 (the cutting edge of the longitudinal thread cutter 6 is perpendicular to the cutting edge of the transverse thread cutter 5 in the extending direction), by the structure, when the rotating shaft 3 rotates, the cutting edge of the transverse thread cutter 5 completes transverse thread cutting, and the cutting edge of the longitudinal thread cutter 6 can complete longitudinal thread cutting, so that one thread cutter can complete transverse thread cutting and longitudinal thread cutting simultaneously, which not only reduces the equipment input cost, but also obviously improves the thread cutting efficiency, and because two cutters perform thread cutting simultaneously, the thread cutting precision is higher, and the thread cutting effect is better.

In order to facilitate the installation of the transverse line cutter 5 and the longitudinal line cutter 6, the invention is provided with the cutter holder 4 on the rotating shaft 3, and the transverse line cutter 5 and the longitudinal line cutter 6 are both arranged on the cutter holder 4. In order to adapt to cutting lines of paperboards with different specifications, the invention also installs the cutter seat 4 on the rotating shaft 3 in an axially adjustable way. The position of the line cutter can be adjusted by moving the cutter holder 4, so that the cutting lines of the paperboards with different specifications can be met.

Claims

1. The utility model provides a novel cardboard secant machine, including the frame, install conveying mechanism (1) and secant mechanism in the frame, secant mechanism is including horizontal secant sword (5) and secant compression roller (2), secant compression roller (2) are connected its characterized in that with drive secant compression roller (2) pivoted compression roller power supply transmission: the horizontal thread cutting knife (5) is a semicircular knife, the horizontal thread cutting knife (5) is installed on the rotating shaft (3), and the rotating shaft (3) is in transmission connection with a rotating shaft power source for driving the rotating shaft (3) to rotate.

2. The novel paperboard line cutting machine of claim 1, characterized in that: the novel wire cutting machine is characterized in that a longitudinal wire cutting knife (6) is installed on the rotating shaft (3), the longitudinal wire cutting knife (6) is a flat knife, and one end of a cutting edge of the longitudinal wire cutting knife (6) is close to one end of a cutting edge of the transverse wire cutting knife (5).

3. The novel paperboard line cutting machine of claim 2, characterized in that: the rotary shaft (3) is provided with a cutter holder (4), and the transverse thread cutter (5) and the longitudinal thread cutter (6) are both arranged on the cutter holder (4).

4. A novel paperboard line cutting machine as claimed in claim 3, characterized in that: the tool apron (4) is mounted on the rotating shaft (3) in an axially adjustable manner.