CN210192986U

CN210192986U - Large-sheet cutting paper conveying transition device

Info

Publication number: CN210192986U
Application number: CN201920785631.7U
Authority: CN
Inventors: Shenggui Liu; 刘胜贵; Yaning Wang; 王亚宁; Jiande Chen; 陈建德
Original assignee: QUJING FUPAI COLOR PRINTING Co Ltd
Current assignee: QUJING FUPAI COLOR PRINTING Co Ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-03-27
Anticipated expiration: 2029-05-29

Abstract

The transition device for large-piece cutting and paper feeding comprises a paper receiving and feeding mechanism and a paper pressing mechanism; the paper receiving and feeding mechanism consists of a horizontal shaft, a plurality of horizontally extending arms and a supporting plate, wherein the horizontal shaft is arranged at an outlet of a large-piece cutting mechanism of the printing machine, is parallel to the outlet of the large-piece cutting mechanism and is suspended above the supporting plate; a plurality of arc grooves are transversely formed in the cylindrical surface of the horizontal shaft, and each stretching arm is fixed in each arc groove through a screw; the paper pressing mechanism consists of a main air pipe, branch pipes and an air valve, the main air pipe is fixed on the upper surface of the horizontal shaft through a plurality of clips by clip screw holes and is in the same direction as the horizontal shaft, a plurality of branch pipes are fixedly connected on the main air pipe and are communicated with the inner cavity of the main pipe, and each branch pipe corresponds to the space between two adjacent stretching arms below; an air valve is arranged at the inlet part of the main air pipe. The front edge of the large printed matter is raised, the raised part is flattened in an air pressure mode by air flow of the branch pipe, and the large printed matter is sent into a paper conveying belt and then sent to a rear paper collecting frame; the problem that the upturned paper cannot enter the paper conveying belt is solved.

Description

Large-sheet cutting paper conveying transition device

Technical Field

The utility model belongs to a big paper cuts defeated paper transition device.

Background

The intaglio printing machines used in the printing industry are multiple in types, the intaglio printing machines produced by different manufacturers are different in function, some intaglio printing machines are single in function, and after printing, the intaglio printing machines are cut into large sheets to be subjected to rotary flattening and flattening to complete post-process processing. Some printing machines receive the paper roll after printing, and then other processes are completed after the procedure is changed. Some printing machines have complete functions, can be cut into large sheets after printing and can also be collected into roll paper, and the printing machines with complete functions have relatively high manufacturing cost. The printing manufacturer orders the printing machine according to the process requirements of the product itself.

At present, the imported R983 ten-color photogravure press of our company can only be cut into large sheets after printing, then the large sheets are conveyed to a paper collecting frame through a belt, the other processes are completed through sequence conversion and flattening, but a certain distance exists before the large sheets are cut into a paper conveying belt, the paper is deformed under the influence of temperature and humidity, the cut paper is difficult to ensure to be flat, the paper cut into the large sheets is upwarped or concave, the paper cannot smoothly enter the paper conveying belt, paper jam and stop are caused, a large amount of waste products are caused when the machine is stopped and then started, and the production progress is also influenced. If a transition device is additionally arranged in front of the paper conveying belt, the paper which is cut into large sheets and then deformed can be smoothly guided into the paper conveying belt, the occurrence of shutdown faults can be greatly reduced, and meanwhile, the production efficiency is improved.

Disclosure of Invention

The utility model aims at providing a big paper transition device that cuts to can only cut into big paper after solving the printing of the R983 ten-color gravure press of present import, carry it by the belt and lead to carrying the problem of not being smooth and tidy because of the paper deformation that cuts in the process on the collection frame.

Technical scheme

The transition device for large-piece cutting and paper feeding comprises a paper receiving and feeding mechanism and a paper pressing mechanism; the paper receiving and feeding part consists of a horizontal shaft, a plurality of horizontally extending arms and a supporting plate, wherein the horizontal shaft is arranged at an outlet of a large-piece cutting mechanism of the printing machine, is parallel to the outlet of the large-piece cutting mechanism and is suspended above the supporting plate; a plurality of arc grooves are transversely formed in the cylindrical surface of the horizontal shaft, each stretching arm is fixed in each arc groove through a screw, and all stretching arms are positioned in the same plane; the paper pressing part consists of a main air pipe, branch pipes and an air valve, the main air pipe is fixed on the horizontal shaft by a plurality of clips and is in the same direction with the horizontal shaft, the main air pipe is fixedly connected with a plurality of branch pipes which are communicated with the inner cavity of the main air pipe, and each branch pipe corresponds to the space between two adjacent stretching arms below; an air valve is arranged at the inlet part of the main air pipe. Thus, the large-sheet cutting paper conveying transition device is manufactured.

The arc grooves are distributed on the horizontal shaft at equal intervals; the upper edge of the arc groove is in a circular arc shape formed by the axial surface of the horizontal shaft, and the bottom of the groove is in a plane.

The outlet of each branch pipe is bent downwards to form an elbow; the outlets of the branch pipes are on the same horizontal line.

The large-sheet cutting and paper conveying transition device is arranged in front of a paper outlet and a paper conveying belt of a printing machine, large printed matters cut and sent out from the printing machine can be smoothly sent into the paper conveying belt, if the front edge of the large printed matters has bending deformation, such as the problem of upwarp of paper, the upwarp part of each branch pipe can be flattened in an air pressure mode by air flow from each branch pipe, and then the large printed matters are sent into the paper conveying belt and then sent to a rear paper collecting frame after being processed by an upper roller and a lower roller of the paper conveying belt; the problem that the upturned paper cannot enter the paper conveying belt is solved.

Drawings

FIG. 1 is a schematic view of the working principle of a large-sheet cutting paper feeding transition device.

FIG. 2 is a schematic structural diagram of a large-sheet cutting paper feeding transition device.

FIG. 3 is a schematic view of the combination of a large sheet cutting paper feeding transition device and a following paper feeding belt.

Detailed Description

The technical solution is further explained below as an embodiment with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, the paper feed belt performs a conveying operation of a large printed matter by an upper paper feed belt 5a and a lower paper feed belt 5 b. The upper paper conveying belt 5a runs by the rotation of an upper belt front shaft 4a and an upper belt rear shaft 4 b; the operation of the lower paper conveying belt 5b is realized through the rotation of the lower belt front shaft 6a and the lower belt rear shaft 6b, and the bearing is used for ensuring that the belt shaft drives the belt to rotate stably and flexibly together when in work. The upper and lower

paper feed belts

5a and 5b are operated to be closely contacted to clamp the paper, thereby feeding the paper. The upper belt front shaft 4a and the upper belt rear shaft 4b are completely the same belt shafts as the lower belt front shaft 6a and the lower belt rear shaft 6b, and the upper shaft and the lower shaft rotate simultaneously during operation, so that the upper paper conveying belt 5a and the lower paper conveying belt 5b are driven to act together, and large printed matters are conveyed to the paper collecting frame 10. The problem that a large printed matter 2 formed after cutting printing paper by the printing machine is deformed and warped often occurs, and the large printed matter is only extruded and flattened between an upper paper conveying belt and a lower paper conveying belt and then is conveyed to a paper collecting frame 10 to be stacked, wherein the paper collecting frame 10 is close to an outlet of the paper conveying belt.

When the printing machine cuts printing paper to form a large printed matter 2 which is deformed and upwarps, the large printed matter can smoothly enter between the upper paper conveying belt and the lower paper conveying belt, and the upwarps cannot be folded. Therefore, the transition device for cutting and feeding the large sheets can effectively solve the problem.

The horizontal shaft 1, the stretching arm 3 and the supporting plate 9 in the paper receiving and feeding mechanism of the large-sheet cutting and paper conveying transition device form a mechanism for completing the work. Wherein: the horizontal shaft 1 is installed at a position between the cutting mechanism and the paper feeding belt, and it does not rotate during operation. Namely, the horizontal shaft 1 is arranged at the outlet of a large-sheet cutting mechanism of the printing machine, is parallel to the outlet of the large-sheet cutting mechanism and is suspended above the supporting plate 9; the printed matter coming out of the large-sheet cutting mechanism of the printing machine is conveyed to the supporting plate 9 in a horizontal state; and above the pallet 9 a horizontal shaft 1 is mounted. One end of the horizontal shaft 1 is provided with a screw hole 1a, and the other end of the horizontal shaft 1 is also provided with the same screw hole for installing and fixing the horizontal shaft 1, and particularly, the horizontal shaft is arranged between the cutting mechanism and the paper conveying belt. The cylindrical surface of a horizontal shaft 1 of the embodiment is transversely provided with 5 arc grooves 1b, the bottom surfaces of the grooves are flat surfaces, screw holes are formed in the bottom surfaces for clamping 5 flat extending arms 3 made of stainless steel bars, and the flat extending arms are fixed in the corresponding arc grooves by screws to form a conveying mechanism; the deformed paper is smoothly guided into the paper conveying belt by the action of air pressure. The horizontal arms 3 are provided with screw holes 3a, and each horizontal arm 3 is provided with two screw holes with the same size for mounting and fixing a stainless steel strip at the bottom of the circular arc groove on the horizontal shaft 1. Therefore, the bottom surfaces of all five circular arc grooves 1b are required to be in the same plane, so as to ensure that the five mounted parallel arms 3 are also in the same plane.

The main air pipe 8, the branch pipes 8.1 and the air valves 7 form a paper pressing mechanism, five holes are arranged on the pipe surface of the main air pipe 8 side by side, the five holes are on the same straight line, and the position of each hole is required to be arranged between the two lower stretching arms 3 and is preferably arranged in the middle between the two stretching arms. The mouth of each hole is hermetically provided with a branch pipe 8.1, and each branch pipe 8.1 is vertical to the main air pipe 8; the outlets of the branch pipes 8.1 are bent downwards to form elbows, and the outlets of the branch pipes 8.1 are on the same horizontal line. The main air pipe 8 is fixed on the horizontal shaft 1 through a plurality of clips 11 and clip screw holes 12 formed on the clips by screws and is in the same direction with the horizontal shaft. The main air pipe and the branch pipes are made of stainless steel pipes, and an air valve 7 for controlling air pressure is arranged at the inlet part of the main air pipe 8. Thus, the large-sheet cutting paper conveying transition device is manufactured.

The stretching arms 3 are used for guiding the deformed paper between the upper paper conveying belt and the lower paper conveying belt under the action of air pressure blown out from the branch pipes 8.1. When the paper is cut, the paper sometimes warps upwards, and the warped paper is blown flat under the action of air pressure and then enters the paper conveying belt along the horizontally extending arm 3; because the air quantity at the air blowing opening is large, the paper can be blown flat, the air quantity at a position slightly far away from the air blowing opening is small, the deformed and upwarped paper can upwarp along with the reduction of the air quantity, and the paper can only move forwards along the stretching arm 3 under the action of the stretching arm 3 until the paper is fed into the paper conveying belt.

The operation process of the large printed matter in the large paper cutting and conveying transition device comprises the following steps: the cutting mechanism of the printing machine is connected to the transition device, and the large-sheet cutting mechanism is arranged in front of the transition device. The paper feeding device is arranged in front of the cutting mechanism and used for feeding paper into the large-piece cutting mechanism, when printed matters are not cut into large pieces, the paper feeding device on the paper conveying transition device moves by the paper feeding device of the paper feeding mechanism, the paper feeding transition device is flatly laid on a supporting plate 9 made of a stainless steel plate and moves to a position between an upper paper conveying belt 5a and a lower paper conveying belt 5b, then the printed matters are cut by a cutting knife on the cutting mechanism, and the cut large-piece printed matters are conveyed to a paper collecting frame 10 by the paper conveying belts.

The method of use is described below: the transition device is installed as shown in the figure, the paper conveying condition after cutting a large sheet is observed after starting, and the position of the stretching arm 3 made of the stainless steel strip and the position of the main air pipe 8 are adjusted according to the paper conveying condition, so that the paper conveying device can be used.

The large-sheet cutting transition device manufactured in the way can smoothly guide the paper deformed after being cut into the space between the upper paper conveying belt and the lower paper conveying belt, can reduce the occurrence of shutdown faults, simultaneously improves the production efficiency and ensures the product quality.

Claims

1. The transition device for large-piece cutting and paper feeding comprises a paper receiving and feeding mechanism and a paper pressing mechanism; the paper receiving and feeding mechanism is characterized by comprising a horizontal shaft (1), a plurality of stretching arms (3) and a supporting plate (9), wherein the horizontal shaft (1) is arranged at an outlet of a large-piece cutting mechanism of the printing machine, is parallel to the outlet of the large-piece cutting mechanism and is suspended above the supporting plate (9); a plurality of arc grooves (1 b) are transversely formed in the cylindrical surface of the horizontal shaft (1), each stretching arm (3) is fixed in each arc groove (1 b) through a screw, and all stretching arms are located in the same plane; the paper pressing mechanism consists of a main air pipe (8), branch pipes (8.1) and an air valve (7), wherein the main air pipe is fixed on the upper surface of a horizontal shaft (1) through a plurality of clips (11) by clip screw holes (12) and is in the same direction with the horizontal shaft, the main air pipe (8) is fixedly connected with a plurality of branch pipes (8.1) and is communicated with the inner cavity of the main pipe, and each branch pipe (8.1) corresponds to the space between two adjacent flat extension arms (3) below; an air valve (7) is arranged at the inlet part of the main air pipe (8).

2. The transition device for large sheet cutting and paper feeding according to claim 1, characterized in that all the circular arc grooves (1 b) are distributed at equal intervals on the horizontal shaft (1); the upper edge of the arc groove is in a circular arc shape formed by the axial surface of the horizontal shaft, and the bottom of the groove is in a plane.

3. The transition device for cut sheets of paper according to claim 1, characterised in that the outlet of the branch pipe (8.1) is bent downwards to form a bend.

4. A cut-to-length paper feed transition device according to claim 1 or 3, characterised in that the outlets of the branch pipes (8.1) are in the same horizontal line.