CN115625178A

CN115625178A - Paper scrap cutting and recycling device for slitting of papermaking rewinder

Info

Publication number: CN115625178A
Application number: CN202211524447.XA
Authority: CN
Inventors: 崔中华; 马希之; 时同宝; 马建波; 王村; 王建
Original assignee: Shandong Longde Composite Fiber Technology Co ltd
Current assignee: Shandong Longde Composite Fiber Technology Co ltd
Priority date: 2022-12-01
Filing date: 2022-12-01
Publication date: 2023-01-20
Anticipated expiration: 2042-12-01
Also published as: CN115625178B

Abstract

The application discloses scraps of paper cutting recovery unit is cut to papermaking rewinding machine includes: the device comprises a conveying device, a wind-cutting device and a separating device, wherein the conveying device comprises a conveying pipe; the cutting air supply device comprises a cylinder, a cutter, fan blades and a rotary driving part, the conveying pipe is communicated with the cylinder, and the cutter and the fan blades are arranged in the cylinder and connected with the rotary driving part; the separating device comprises a separating cylinder and a separating cone, the separating cylinder is communicated with the cylinder body, an air outlet is formed in the upper portion of the separating cylinder, the large end of the separating cone is connected with the lower portion of the separating cylinder, and a discharge hole is formed in the small end of the separating cone. When the paper scrap separating machine operates, the rotary driving part drives the cutter and the fan blades to rotate, the air suction force is generated in the cylinder, paper scraps are sucked into the cylinder, the cutter cuts the paper scraps at the same time, then the paper scraps enter the separating cylinder and the separating cone cylinder, and the paper scraps are discharged and collected from the discharge hole. Through conveyor, cut off pneumatic conveyor and separator can realize the transport of scraps of paper, cut off and retrieve, guaranteed operational environment's clean and tidy, reduced intensity of labour.

Description

Paper scrap cutting and recycling device for slitting of papermaking rewinder

Technical Field

The application relates to the technical field of paper machines, in particular to a paper cutting and recycling device for a paper cutting piece of a papermaking rewinding machine.

Background

At present, in the papermaking process, the paper roll generally needs to be cut and rewound in the later stage to form the paper roll of different specifications and guarantee that the paper roll terminal surface is neat, in order to satisfy different user demands.

Because paper sheets are produced in the slitting and rewinding processes, the current treatment modes generally comprise the following two modes:

1. the cut paper sheets are pumped away by a fan, and the paper sheets and air supply cannot be separated, so that paper scrap foam is blown up, accumulation is difficult, and the operation environment is influenced;

2. the cut paper sheets are naturally accumulated beside the equipment without cutting treatment, and after a certain amount of accumulated paper sheets are manually conveyed to a storage treatment site.

Above-mentioned two kinds of processing methods all have the chaotic problem of operating environment, and the scraps of paper are not handled through cutting off moreover, cause the packing piece fluffy, not closely knit when later stage packing is handled, store and need great place, also increased later stage cost of transportation, bring a great deal of unfavorable to the recycle of scraps of paper.

Disclosure of Invention

The utility model aims at providing a scraps of paper cutting recovery unit is cut to papermaking rewinding machine can effectively guarantee operational environment's clean and tidy.

In order to solve the technical problem, the application provides the following technical scheme:

the utility model provides a paper sheet cutting recovery device is cut to papermaking rewinding machine, includes:

a delivery device comprising a delivery tube;

the cutting air supply device comprises a cylinder, a cutter, fan blades and a rotary driving part, wherein the conveying pipe is communicated with the cylinder, the cutter and the fan blades are arranged in the cylinder and are connected with the rotary driving part, the rotary driving part is used for driving the cutter and the fan blades to rotate, the conveying pipe sucks paper scraps into the cylinder under the rotation action of the fan blades, and the cutter is used for cutting the paper scraps sucked into the cylinder;

the separating device comprises a separating cylinder and a separating cone, the separating cylinder is communicated with the cylinder body, an air outlet is formed in the upper portion of the separating cylinder, the large end of the separating cone is connected with the lower portion of the separating cylinder, and a discharge hole is formed in the small end of the separating cone.

Preferably, the paper cutting machine further comprises a water spraying assembly connected with the cylinder, and the water spraying assembly is used for spraying water to the cut paper sheets.

Preferably, the rotary driving part comprises a rotating shaft and a motor, the two ends of the rotating shaft are respectively rotatably connected with the upper end and the lower end of the barrel, the motor is connected with the rotating shaft, and the cutter is arranged above the fan blades along the axial direction of the rotating shaft.

Preferably, the cutter includes an upper cutter and a lower cutter distributed in an axial direction of the rotation shaft.

Preferably, the upper end of the cylinder is provided with an air pipe communicated with the inside of the cylinder.

Preferably, the lower end of the barrel body is provided with a lower conical barrel with the inner diameter reduced from top to bottom, and the side part of the lower conical barrel is communicated with the side part of the separation barrel through a discharge pipe.

Preferably, the side part of the conveying pipe is provided with a plurality of paper guiding pipes.

Preferably, the axis of the paper guiding pipe and the axis of the conveying pipe form a preset included angle.

Compared with the prior art, the technical scheme has the following advantages:

the application provides a scraps of paper cuts recovery unit that cuts of papermaking rewinding machine, when the operation, rotation drive portion drive cutter and flabellum are rotatory, produce convulsions suction under the rotation of flabellum in the barrel, can follow the conveyer pipe with the scraps of paper and inhale in the barrel, the cutter cuts the scraps of paper that inhales in the barrel simultaneously, and scraps of paper after cutting gets into the cylinder and separates the awl section of thick bamboo after, is collected by the discharge gate discharge. Through conveyor, cut off pneumatic conveyor and separator can realize the transport of scraps of paper, cut off and retrieve, guaranteed operational environment's clean and tidy, can reduce intensity of labour moreover.

Drawings

In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a device for cutting and recovering slit paper pieces of a papermaking rewinding machine according to an embodiment of the present application.

The reference numbers are as follows:

01-a conveying device; 02-cutting off the air conveying device; 03-separation device.

1-a conveying pipe; 2-a first paper guiding tube; 3-a second paper guiding pipe; 4, covering the upper cover; 5-a cylinder body; 6-feeding pipe; 7-a rotating shaft; 8, feeding a cutter; 9-cutting; 10-fan blades; 11-a water spray pipe; 12-a spray head; 13-lower cone; 14-a lower bearing; 15-a discharge pipe; 16-air pipe; 17-an upper bearing; 18-a motor; 19-a feed port; 20-air outlet; 21-a separation cylinder; 22-a separation cone; 23-discharge port.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings.

In the following description, specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import to those skilled in the art without departing from the spirit and scope of this application. The present application is therefore not limited to the specific embodiments disclosed below.

Referring to fig. 1, fig. 1 is a schematic structural view of a device for cutting and recycling slit paper sheets of a papermaking rewinding machine according to an embodiment of the present disclosure.

A specific embodiment of this application provides a paper piece cuts recovery unit that cuts for papermaking rewinding machine, includes: the device comprises a conveying device 01, a cutting air supply device 02 and a separating device 03, wherein the conveying device 01 comprises a conveying pipe 1; the air supply cutting device 02 comprises a cylinder 5, a cutter, fan blades 10 and a rotary driving part, wherein the conveying pipe 1 is communicated with the cylinder 5, and the cutter and the fan blades 10 are arranged in the cylinder 5 and connected with the rotary driving part; the separating device 03 comprises a separating cylinder 21 and a separating cone 22, the separating cylinder 21 is communicated with the cylinder body 5, an air outlet 20 is formed in the upper portion of the separating cylinder 21, the large end of the separating cone 22 is connected with the lower portion of the separating cylinder 21, and a discharge hole 23 is formed in the small end of the separating cone 22. When the paper cutting and recycling device of the papermaking rewinder runs, the rotary driving part drives the cutter and the fan blades 10 to rotate, air draft suction is generated in the cylinder 5 under the rotating action of the fan blades 10, paper scraps can be sucked into the cylinder 5 from the conveying pipe 1, meanwhile, the cutter cuts the paper scraps sucked into the cylinder 5, and the cut paper scraps are discharged and collected through the discharge hole 23 after entering the separating cylinder 21 and the separating cone 22. Through the conveying device 01, the cutting air conveying device 02 and the separating device 03, the paper scraps can be conveyed, cut and recovered, the tidiness of the operation environment is ensured, and the labor intensity can be reduced.

In some embodiments of the present application, the device for cutting and recovering cut paper sheets of the papermaking rewinding machine further includes a water spraying assembly connected to the cylinder 5, and the water spraying assembly can spray water to the cut paper sheets. The water spraying assembly comprises a water spraying pipe 11 and a spray head 12, the water spraying pipe 11 is connected to the side wall of the lower portion of the cylinder 5, the spray head 12 is located in the cylinder 5, paper sheets cut by atomized water generated by the spray head 12 are humidified to the moisture content of 8-12% (specifically, the moisture content can be different according to different gram weights of the paper sheets), the specific gravity of the paper sheets is increased, and the paper sheets are favorably separated from air flow in the separating device 03. In addition, the paper sheets can be further softened by humidifying the paper sheets, so that the paper sheets can be packed and compacted in a later period, the later period transportation cost is reduced, and the paper sheets can be recycled.

In some embodiments of this application, the rotation driving portion includes pivot 7 and motor 18, the both ends of pivot 7 are rotated respectively and are connected in the upper end and the lower extreme of barrel 5, the upper end of pivot 7 is equipped with upper bearing 17, the lower extreme is equipped with lower bearing 14, in order to guarantee the stationarity of pivot 7 operation, motor 18 is connected with pivot 7, the top of flabellum 10 is located along the axial direction of pivot 7 to the cutter, the preferred symmetry mounting structure who constitutes of four flabellum 10, leave certain space between flabellum 10 edge and the barrel 5 inner wall, in order to guarantee that the ejection of compact is smooth and easy, avoid blockking up. The motor 18 is preferably a variable frequency speed-regulating motor 18, and the cutting speed and the air volume of the cutter can be controlled by regulating the rotating speed of the motor 18, so that the paper volume entering the conveying pipe 1 can be controlled, the uniform cutting and smooth discharging can be kept at a proper cutting speed and the air suction volume and the air speed, and the stability of the operation load can be maintained.

In some embodiments of the present application, the cutting knife comprises an upper knife 8 and a lower knife 9 distributed along the axial direction of the rotating shaft 7. The upper knife 8 is preferably a fixed knife, the upper knife 8 is installed inside the barrel 5, the angle between the cutting angle of the knife edge and the incident plane is preferably 60 degrees, and the upper knife 8 is preferably a symmetrical installation structure consisting of 4 blades. The lower knife 9 and the fan blades 10 are respectively fixedly arranged on the rotating shaft 7, the lower knife 9 is a rotating knife, the cutting angle of the knife edge and the angle of the incident plane are preferably 60 degrees, and the lower knife 9 is preferably a symmetrical installation structure consisting of 2 pieces.

In some embodiments of the present application, the upper end of the barrel 5 is provided with an air duct 16 communicating with the interior thereof. Specifically, the upper end of barrel 5 is equipped with upper cover 4, tuber pipe 16 is connected perpendicularly in upper cover 4, the lateral wall of barrel 5 upper end is equipped with inlet pipe 6, conveyer pipe 1 passes through the flange and docks with inlet pipe 6, the axis of inlet pipe 6 is perpendicular with the axis of tuber pipe 16, through set up tuber pipe 16 in the upper end of barrel 5, the lateral part sets up inlet pipe 6, can guarantee that the upper portion and the lateral part of barrel 5 all can the air inlet, after the scraps of paper got into barrel 5 from the lateral part in, through the downward wind-force that tuber pipe 16 produced, can promote scraps of paper to remove downwards along barrel 5, twine and gather after avoiding scraps of paper to get into barrel 5. In addition, the rotating speed of the fan blades 10 can be controlled, and the air inlet volume of the air pipe 16 can be controlled to control the descending speed of the paper sheets, so that the cutting uniformity and smoothness of the paper sheets are ensured.

In some embodiments of the present application, the lower end of the barrel 5 is provided with a lower conical barrel 13 with an inner diameter decreasing from top to bottom, and the side of the lower conical barrel 13 is communicated with the side of the separation barrel 21 through a discharge pipe 15. Wherein can set up feed inlet 19 at the lateral wall of separator 21, feed inlet 19 sets up along the tangential direction of the lateral wall of separator 21, and the diaxon is perpendicular, and air outlet 20 sets up and the top of separator 21, and inserts the inside certain degree of depth of separator 21. Airflow wrapping the paper sheets enters the separating cylinder 21 from the feeding hole 19 at the speed of 6-10m/s (the airflow speed is different according to the gram weight of the paper sheets), the airflow changes from linear motion into circular rotation motion, the rotation airflow spirally flows downwards along the inner walls of the separating cylinder 21 and the separating cone cylinder 22, the paper sheets are thrown towards the inner walls under the action of centrifugal force and lose inertia force, and fall and gather along the inner wall of the separating cone cylinder 22 by virtue of momentum of the downward speed along the axis generated by the separating cone cylinder 22, are gradually separated from the airflow, and are discharged and collected by the discharging hole 23 finally. The airflow after separating the paper sheets falls in the separating device 03 in a rotating manner, the airflow continuously converges toward the axial center of the separating cone 22 along the edge of the inner wall in the falling process to form centripetal radial airflow, and the airflow forms a rotating central rotational flow to move upwards and is discharged through the air outlet 20.

In order to improve the suction efficiency of the paper pieces, in the present embodiment, the side of the conveying pipe 1 is provided with a plurality of paper guide pipes. For example, the first paper guiding tube 2 and the second paper guiding tube 3 may be arranged along the axial direction of the conveying tube 1, wherein the axis of the paper guiding tube is arranged at a preset included angle with the axis of the conveying tube 1, specifically, the axis of the paper guiding tube is arranged at an included angle of 45 ° with the airflow direction in the conveying tube 1. By arranging the paper guiding pipe obliquely relative to the conveying pipe 1, the paper pieces are facilitated to be sucked into the conveying pipe 1.

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.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a paper sheet cuts recovery unit is cut to papermaking rewinding machine, its characterized in that includes:

a delivery device (01) comprising a delivery tube (1);

the air supply cutting device (02) comprises a cylinder (5), a cutter, fan blades (10) and a rotary driving part, wherein the conveying pipe (1) is communicated with the cylinder (5), the cutter and the fan blades (10) are arranged in the cylinder (5) and are connected with the rotary driving part, the rotary driving part is used for driving the cutter and the fan blades (10) to rotate, paper scraps are sucked into the cylinder (5) by the conveying pipe (1) under the rotating action of the fan blades (10), and the cutter is used for cutting the paper scraps sucked into the cylinder (5);

separating device (03), it includes a separator cylinder (21) and a separation awl section of thick bamboo (22), separator cylinder (21) with barrel (5) intercommunication, the upper portion of separator cylinder (21) is equipped with the air outlet, the main aspects of a separation awl section of thick bamboo (22) with the sub-unit connection of separator cylinder (21), the tip of a separation awl section of thick bamboo (22) is equipped with discharge gate (23).

2. The paper cutting and recycling device of the rewinding machine for papermaking as claimed in claim 1, further comprising a water spraying assembly connected to the cylinder (5), wherein the water spraying assembly is used for spraying water to the cut paper.

3. The paper cutting and recycling device for the paper cutting scraps of the papermaking rewinding machine as claimed in claim 1, wherein the rotary driving portion comprises a rotating shaft (7) and a motor (18), two ends of the rotating shaft (7) are respectively rotatably connected to the upper end and the lower end of the cylinder (5), the motor (18) is connected with the rotating shaft (7), and the cutter is arranged above the fan blades (10) along the axial direction of the rotating shaft (7).

4. The paper cutting and recovery device of the rewinding machine for papermaking according to claim 3, characterized in that said cutter comprises an upper blade (8) and a lower blade (9) distributed along the axial direction of said spindle (7).

5. The paper cutting and recycling device of the rewinding machine for papermaking as claimed in claim 1, characterized in that an air pipe (16) is provided at the upper end of the cylinder (5) and communicates with the inside of the cylinder.

6. The paper cutting and recycling device of the rewinding machine for papermaking as claimed in claim 1, wherein the lower end of the cylinder (5) is provided with a lower conical cylinder (13) with an inner diameter decreasing from top to bottom, and the side of the lower conical cylinder (13) is communicated with the side of the separation cylinder (21) through a discharge pipe (15).

7. The paper cutting and recycling device of the rewinding machine for papermaking according to any of claims 1 to 6, characterized in that the side of the conveying pipe (1) is provided with a plurality of paper guiding pipes.

8. The device for cutting and recovering slit paper sheets of the papermaking rewinding machine as claimed in claim 1, wherein a preset included angle is formed between the axis of the paper guiding pipe and the axis of the conveying pipe (1).