CN112045775B

CN112045775B - Paper is cut and is cut mechanism with rewinding machine

Info

Publication number: CN112045775B
Application number: CN202010792802.6A
Authority: CN
Inventors: 杨志荣
Original assignee: Foshan Xushi Lifeng Packaging Products Co ltd
Current assignee: Foshan Xushi Lifeng packaging products Co.,Ltd.
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2022-02-01
Anticipated expiration: 2040-08-10
Also published as: CN112045775A

Abstract

The invention relates to the technical field of paper production, and discloses a rewinding machine slitting mechanism for slitting paper, which comprises a cutter body and a compression roller, wherein paper is connected to the outer wall of the compression roller in a sliding manner, an electric plate is arranged in an inner cavity of the cutter body, discharge needles are uniformly arranged on the surface of the electric plate, the bottom surface of the cutter body is arc-shaped and is uniformly provided with air openings, an air collecting box corresponding to the cutter body is arranged on the side surface of the paper, and the air collecting box is used for collecting air ejected by the cutter body, decelerating the air and then reversely ejecting the air on the surface of the paper. According to the invention, the paper is cut by utilizing the high-speed airflow jetted from the cutter body, and the friction force between the airflow and the paper is small, so that the burr condition of the edge of the paper when the traditional steel material type cutting cutter is used for cutting is reduced, the smoothness of the paper is improved, and in addition, the static charge on the paper is neutralized by matching with an electric plate and discharging to ionize air, so that the adsorption of the static charge on the paper to dust is reduced, and the quality of finished product bundling is improved.

Description

Paper is cut and is cut mechanism with rewinding machine

Technical Field

The invention relates to the technical field of paper production, in particular to a cutting mechanism of a rewinding machine for cutting paper.

Background

The rewinding machine is a special equipment for paper, mica tapes and films, and is used for rewinding paper rolls (called parent rolls) produced by a paper machine in sequence to form split rolls, and rewinding the paper to obtain finished paper for delivery.

An important criterion for evaluating the quality of finished paper after it has been produced is to see if there is a lot of paper dust and paper fluff. On one hand, paper dust and paper fluff are easily generated due to contact and friction between the knife and paper and are mixed in a product, so that the quality of finished paper is reduced, and on the other hand, static electricity on the paper can adsorb paper dust and even dust; in addition, the flatness of the split roll is also a factor for measuring the quality of the finished product, but when the cutter cuts paper, because the tension of the edge of the paper is smaller than the tension of the center of the paper, the edge of the cut paper is curled, so that the two ends of the formed split roll are not tight, and the attractiveness of the finished product is affected.

Disclosure of Invention

Aiming at the defects of the existing cutter mechanism of the rewinding machine in the background technology in the using process, the invention provides the cutting mechanism of the rewinding machine for cutting paper, which has the advantages of small friction force, static elimination, paper powder removal and paper smoothness, and solves the problems of more paper burrs and dust and paper edge curling in the background technology.

The invention provides the following technical scheme: the utility model provides a paper is cut and is used rewinding machine cutting mechanism, includes cutter body and compression roller, the outer wall sliding connection of compression roller has the paper, be provided with the electroplax in the inner chamber of cutter body, the surface of electroplax evenly is equipped with the discharge needle, the bottom surface of cutter body is the arc and evenly has seted up the wind gap, the side of paper is provided with the collection wind box corresponding with the cutter body, collection wind box is used for collecting the air that the cutter body erupted and with the air deceleration back reverse injection on the surface of paper.

Preferably, the inner cavity of the air collecting box is fixedly connected with a partition plate, the partition plate divides the inner cavity of the air collecting box into an air pressure cavity and an air suction cavity, the air pressure cavity and the air suction cavity are respectively and slidably connected with a pressing plate and a linkage plate, a connecting hole which can be communicated with the air pressure cavity and the air suction cavity is formed in the middle lower portion of the outer wall of the partition plate, a side air duct which can be communicated with the air suction cavity is formed in the air collecting box, the bottom of the pressing plate is connected with a spring, an air duct which can be communicated with the connecting hole is formed in the middle of the linkage plate in a transverse penetrating mode, and a suction hole which is located above the linkage plate is formed in the top of the air collecting box.

Preferably, the cutter body is transversely positioned right above the paper, and the number of the air pressure cavity, the air suction cavity and the side air duct is one.

Preferably, the pressure plate and the linkage plate are permanent magnets with opposite poles, the magnetic induction lines penetrate through the partition plate, and the pressure plate and the linkage plate attract each other and synchronously slide.

Preferably, the inner diameters of the connecting hole, the air passage and the side air duct are increased progressively.

Preferably, the cutter body is longitudinally arranged above the paper, the two air suction cavities are respectively positioned at two sides of the air pressure cavity, and each air suction cavity is communicated with one side air duct.

Preferably, the side air duct is in an inclined cone shape, and a gap is formed between the port of the side air duct and the paper.

Preferably, the compression roller is located at the front section of the contact position of the paper and the cutter body and the wind collecting box, the compression roller can be arranged above or below the paper, an air film is arranged on the surface of the compression roller, the air film intermittently contacts with the surface of the paper, and gas is filled in the air film.

The invention has the following beneficial effects:

1. according to the invention, the paper is cut by utilizing the high-speed airflow jetted from the cutter body, and the friction force between the airflow and the paper is small, so that the burr condition of the edge of the paper when the traditional steel material type cutting cutter is used for cutting is reduced, the smoothness of the paper is improved, and in addition, the static charge on the paper is neutralized by matching with an electric plate and discharging to ionize air, so that the adsorption of the static charge on the paper to dust is reduced, and the quality of finished product bundling is improved.

2. According to the invention, the air collecting box is used for collecting the air flow sprayed in the cutter body, the air flow is reversely sprayed on the surface of the paper by using the side air duct after the air flow is decelerated, the dust on the paper is removed by using the impact force of the air flow, and the paper is adsorbed by the negative pressure formed in the air suction cavity (202) during ventilation, so that the stability of the paper is improved, and the notch curling condition of the paper is reduced.

3. According to the invention, the air film is arranged on the compression roller, and the paper is vibrated by the intermittent contact of the air film and the paper when the compression roller rotates, so that the dust adhesion effect of the paper is reduced, the dust removal is facilitated, and the quality of finished product bundling is further improved.

Drawings

FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;

FIG. 2 is a top view of the wind-collecting box of the present invention;

FIG. 3 is a schematic side view of the wind-collecting box according to the present invention;

FIG. 4 is a schematic structural diagram according to a second embodiment of the present invention;

fig. 5 is a schematic view of the installation position of the present invention.

In the figure: 1. a cutter body; 101. a tuyere; 2. a wind collecting box; 201. a pneumatic chamber; 202. an air suction cavity; 3. a compression roller; 301. a gas film; 4. an electric board; 5. a discharge needle; 6. a partition plate; 7. connecting holes; 8. pressing a plate; 9. a spring; 10. a linkage plate; 11. an airway; 12. a side air duct; 13. sucking holes; 100. paper.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a rewinding machine slitting mechanism for slitting paper comprises a cutter body 1 and a press roller 3, the outer wall of the press roller 3 is connected with paper 100 in a sliding manner, the cutter body 1 is used for cutting the paper 100, the press roller 3 is used for pressing the paper 100 to ensure that the tension of the paper 100 is within a specified range, the side surface of the cutter body 1 is communicated with an air inlet pipe, compressed air enters the inner cavity of the cutter body 1 through the air inlet pipe, the press roller 3 is connected with a driving structure to rotate, an electric plate 4 is arranged in the inner cavity of the cutter body 1, discharge needles 5 are uniformly arranged on the surface of the electric plate 4, after high voltage is introduced to the electric plate 4, the discharge needles 5 ionize the air in the inner cavity of the cutter body 1 into ion wind with positive charges and negative charges, the bottom surface of the cutter body 1 is arc-shaped and uniformly provided with air holes 101, the air current is blown out of the surface of the paper 100 from the air holes 101, and the purpose of controlling the width of the cut can be achieved by controlling the diameter of the air holes 101 during production and manufacturing, in addition, air nozzles can be arranged at the air port 101, and the width of the notch can be controlled by selecting air nozzles with different calibers; the speed of air current is confirmed through the compression ratio of the air compressor who is connected with cutter body 1, if need high-speed air current, then the compression ratio is big, if need low-speed air current, then the compression ratio is low, to the great paper of tension, can suitably choose for use low-speed air current, the principle of compression ratio should be under the prerequisite of guaranteeing that the air current can cut paper 100, the air current of chooseing for use low compression ratio as far as possible to play the purpose that reduces the resource consumption. When high-speed wind flowing out of the cutter body 1 blows on the surface of the paper 100, the paper 100 is cut by the cutting force of the wind, and positive and negative charges carried in the wind are neutralized with static charges on the surface of the paper 100, so that the aim of removing static electricity on the cutter body 1 is fulfilled; and when the high-speed air flow blows on the surface of the paper 100, due to the collision of the air flow and the paper 100, part of the air flow flows to two sides along the surface of the paper 100, and paper dust, paper dust and the like adhered to the surface of the paper 100 can be blown off.

The side of the paper 100 is provided with the wind collecting box 2 corresponding to the cutter body 1, when the paper 100 is cut by the high-speed airflow, the airflow flows to the surface of the wind collecting box 2 through the cut, and the wind collecting box 2 is used for collecting the air ejected by the cutter body 1, reducing the speed of the air and then reversely ejecting the air to the surface of the paper 100, and is used for removing dust on the lower surface of the paper 100.

The first embodiment is as follows: referring to fig. 3, the cutter body 1 is transversely located right above the paper 100, and is used for cutting off the split roll and the parent roll after the paper 100 is rolled, and the width of the split roll is the same as that of the parent roll. Referring to fig. 1, the lowest part of the arc-shaped bottom surface of the cutter body 1 is located at the middle position of the paper 100, and since the distance from the air ports 101 to the surface of the paper 100 is sequentially increased from the middle to both sides, the air flow at the middle position is sprayed to the surface of the paper 100 before the air flows at both sides, and the paper 100 is gradually cut from the middle to both sides, the cutting speed is faster than that of the conventional single-side cutting method, so that the difference of the lengths of both ends of the paper 100 can be reduced; compared with the mode of simultaneous cutting from top to bottom, the cutting mode can reduce the reverse force of the paper 100 to the air flow, and the side face of the air flow can also cut the paper 100 in the lateral direction at the notch, so that the cutting speed is improved. In this embodiment, the cutter body 1 can cut only the paper 100 having a width smaller than the length of the cutter body 1. The inner cavity of the wind collecting box 2 is fixedly connected with a clapboard 6, the clapboard 6 divides the inner cavity of the wind collecting box 2 into a pressure cavity 201 and an air suction cavity 202, the pressure cavity 201 and the air suction cavity 202 are respectively connected with a pressing plate 8 and a linkage plate 10 in a sliding way, the middle lower part of the outer wall of the clapboard 6 is provided with a connecting hole 7 which can be communicated with the pressure cavity 201 and the air suction cavity 202, the pressing plate 8 and the linkage plate 10 are arranged into permanent magnets with opposite poles and magnetic induction lines penetrate through the clapboard 6, so that the pressing plate 8 and the linkage plate 10 are mutually attracted and can synchronously slide, when airflow is sprayed on the pressing plate 8 through the pressure cavity, the pressing plate 8 slides downwards along the inner wall of the pressure cavity, at the moment, due to the attraction of the pressing plate 8 and the linkage plate 10, the linkage plate 10 synchronously slides downwards along the inner wall of the air suction cavity, the inside of the wind collecting box 2 is provided with a side air duct 12 which can be communicated with the air suction cavity 202, the bottom of the pressing plate 8 is connected with a spring 9, the middle of the linkage plate 10 is transversely communicated with the connecting hole 7, when the linkage plate 10 slides downwards to the position where the air passage 11 is communicated with the linkage hole 7, the pressure plate 8 is just positioned below the linkage hole 7 at the moment, and the air flow flows through the air pressure cavity 201, the linkage hole 7, the air passage 11 and the side air passage 12; the hole 13 that inhales that is located interlock board 10 top is seted up at the top of collection wind box 2, and in this embodiment, the quantity of atmospheric pressure chamber 201, the chamber 202 and the side wind channel 12 of breathing in is one, can one-way clear away the dust, and the structural arrangement in collection wind box 2 is: pneumatic chamber 201-air suction chamber 202-side duct 12.

Referring to fig. 3, the cut of the paper 100 is located above the pressing plate 8, the high-speed airflow in the cutter body 1 blows on the pressing plate 8, the pressing plate 8 is pressed to slide downwards, meanwhile, the linkage plate 10 slides downwards along with the pressing plate 8 to the bottom ends of the linkage hole 7, the air passage 11 and the side air passage 12 to be communicated, and the airflow blows on the lower surface of the paper 100 through the side air passage 12, so that dust on the paper 100 is blown off. In the process, the airflow collides with the pressure plate 8 and needs to overcome the supporting force of the spring 9, so that the kinetic energy of the airflow is converted into the elastic potential energy of the spring 9, the kinetic energy of the airflow is reduced, and the flow speed is reduced; and because the inner diameters of the connecting hole 7, the air duct 11 and the side air duct 12 are increased progressively, the flow rate of the air flow is further reduced after the air flow passes through the air duct 11 and the side air duct 12, so that the paper 100 cannot be cut when the air flow blows on the paper 100 through the side air duct 12; when the air channel 11 slides downwards along with the pressing plate 8, a negative pressure is formed above the air suction cavity 202, the paper 100 is adsorbed at the suction hole 13, so that the edge of the paper can be fixed, the paper can be conveniently separated, the curling of the edge of the paper can be reduced, and the paper 100 can be prevented from being blown up by the air flow from the side air channel 12 by fixing the paper 100, so that dust cannot be removed, because in the embodiment, after the paper 100 is cut by the cutter body 1, the paper is separated and formed, and the embodiment is mainly used for removing dust at the cut.

Example two: referring to fig. 4, different from the first embodiment, the cutter body 1 is longitudinally disposed above the paper 100, and the cutter body 1 is longitudinally cut to divide the parent roll into a plurality of partial rolls having a width smaller than that of the parent roll, so that two air suction cavities 202 are respectively located at two sides of the air pressure cavity 201, each air suction cavity 202 is communicated with one side air duct 12, and in the first embodiment, the structure in the air collecting box 2 is arranged as follows: the side air duct 12, the air suction cavity 202, the air pressure cavity 201, the air suction cavity 202 and the side air duct 12; the two air suction cavities 202 are respectively used for fixing the side edges of the two partial rolls, so that the curling degree of the side edges can be reduced, and the air flows in the two side air channels 12 are respectively blown on the two adjacent partial rolls of paper 100, in this embodiment, dust on the surfaces of the partial rolls of paper 100 can be removed in the whole process.

In the first and second embodiments, the side air duct 12 is in an inclined cone shape, and a gap is provided between the end of the side air duct 12 and the paper 100, so that the gap can increase the diffusion area of the air flow, improve the dust removal range, and simultaneously avoid the contact between the side air duct 12 and the paper 100, which causes the air flow to blow up the paper 100, so that the paper 100 cannot be stabilized.

The press roller 3 is positioned at the front section of the contact part of the paper 100 and the cutter body 1 and the wind collecting box 2, the press roller 3 can be arranged above or below the paper 100, the press roller 3 plays a role of adjusting the tension of the paper 100, the height of the press roller 3 relative to the paper 100 can be adjusted (in the prior art), the surface of the press roller 3 is provided with the air film 301, the air film 301 is filled with air, when the press roller 3 rotates, the air film 301 intermittently contacts with the surface of the paper 100, so that the paper 100 presents a vibration effect, the contact force of dust and paper powder equal to the paper 100 can be reduced, and better blowing is facilitated; to improve the dust removing effect, the press roller 3 may be disposed at a position close to the wind-collecting box 2. In this embodiment, the tension of the paper 100 is increased when the air film 301 comes into contact with the paper 100, but the increased value is within the range of the tension of the paper 100, thereby preventing an excessive influence on the tension of the paper 100.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a paper is cut and is used rewinding machine cutting mechanism, includes cutter body (1) and compression roller (3), the outer wall sliding connection of compression roller (3) has paper (100), its characterized in that: an electric plate (4) is arranged in an inner cavity of the cutter body (1), discharge needles (5) are uniformly arranged on the surface of the electric plate (4), the bottom surface of the cutter body (1) is arc-shaped and is uniformly provided with air ports (101), an air collecting box (2) corresponding to the cutter body (1) is arranged on the side surface of the paper (100), and the air collecting box (2) is used for collecting air jetted by the cutter body (1), slowing down the air and reversely jetting the air on the surface of the paper (100); the press roller (3) is located at the front section of the contact position of the paper (100) with the cutter body (1) and the wind collecting box (2), the press roller (3) can be arranged above or below the paper (100), an air film (301) is arranged on the surface of the press roller (3), the air film (301) intermittently contacts with the surface of the paper (100), and gas is filled in the air film (301).

2. The paper slitting mechanism of the rewinding machine for slitting as claimed in claim 1, characterized in that: the inner cavity of the wind collecting box (2) is fixedly connected with a partition plate (6), the inner cavity of the wind collecting box (2) is divided into an air pressure cavity (201) and an air suction cavity (202) by the partition plate (6), the air pressure cavity (201) and the air suction cavity (202) are internally and respectively connected with a pressing plate (8) and a linkage plate (10) in a sliding mode, a connecting hole (7) capable of being communicated with the air pressure cavity (201) and the air suction cavity (202) is formed in the middle lower portion of the outer wall of the partition plate (6), a side air duct (12) capable of being communicated with the air suction cavity (202) is formed in the wind collecting box (2), a spring (9) is connected to the bottom of the pressing plate (8), an air duct (11) capable of being communicated with the connecting hole (7) is transversely formed in the middle of the linkage plate (10), and a suction hole (13) located above the linkage plate (10) is formed in the top of the wind collecting box (2).

3. The rewinding machine slitting mechanism for slitting paper sheets according to claim 2, characterized in that: the paper cutter is characterized in that the cutter body (1) is transversely positioned right above the paper (100), and the number of the air pressure cavity (201), the air suction cavity (202) and the number of the side air ducts are one.

4. The rewinding machine slitting mechanism for slitting paper sheets according to claim 2, characterized in that: the pressing plate (8) and the linkage plate (10) are permanent magnets with opposite poles, magnetic induction lines penetrate through the partition plate (6), and the pressing plate (8) and the linkage plate (10) attract each other and synchronously slide.

5. The rewinding machine slitting mechanism for slitting paper sheets according to claim 2, characterized in that: the inner diameters of the connecting hole (7), the air passage (11) and the side air passage (12) are increased progressively.

6. The rewinding machine slitting mechanism for slitting paper sheets according to claim 2, characterized in that: the paper cutter is characterized in that the cutter body (1) is longitudinally arranged above the paper (100), two air suction cavities (202) are respectively arranged on two sides of the air pressure cavity (201), and each air suction cavity (202) is communicated with one side air duct (12).

7. The rewinding machine slitting mechanism for slitting paper sheets according to claim 6, characterized in that: the side air duct (12) is in an inclined conical shape, and a gap is formed between the port of the side air duct (12) and the paper (100).