CN204022009U

CN204022009U - A kind of paper positioning device

Info

Publication number: CN204022009U
Application number: CN201420402206.2U
Authority: CN
Inventors: 戴瑞东; 徐红春
Original assignee: ZHEJIANG YASHENG MACHINERY Co Ltd
Current assignee: ZHEJIANG YASHENG MACHINERY Co Ltd
Priority date: 2014-07-21
Filing date: 2014-07-21
Publication date: 2014-12-17
Anticipated expiration: 2024-07-21

Abstract

The utility model relates to a kind ofly can accurately control the paper positioning device that paper is taken mouthful width, this paper positioning device includes frame and delivery platform, described delivery platform top is provided with rotating shaft, in described rotating shaft, be installed with front lay, it is characterized in that: in described rotating shaft, be also installed with swing arm, described swing arm is connected with cylinder-driven, relative paper feeding direction one side of described front lay is provided with the detection head that puts in place, described front lay opposite side is provided with step pitch detection head, the described detection head that puts in place is all electrically connected to PLC with step pitch detection head, described cylinder is controlled electromagnetic valve by PLC and is realized corresponding action.By the detection head that puts in place, detect first paper, by step pitch detection head, detect ensuing paper, the data that detect are sent to after PLC, then drive rising and falling of front lay by PLC control cylinder, realize thus the accurate control of paper being taken to mouthful width.

Description

A kind of paper positioning device

Technical field

The utility model relates to a kind of paper positioning device, is specifically related to the paper positioning device on a kind of film layer.

Background technology

Paper positioning device is a sheet by a sheet paper of coming from tape transport to be positioned to the conitnuous forms of limit scrap (bridge), then send into film layer and carry out overlay film, covered after film, again by drawing mouthful place that takes that paper cutting machine is opened at adjacent two pieces of paper to break film, the a sheet by a sheet unit paper that has covered film of final formation, this paper with film can be used for making front cover or other paper product of book.Overlay film to unit paper, optimal state is paper and paper seamless link, the limit of adjacent two paper just contacts, do not have overlappingly, there is no spacing, if there is spacing yet, film will stick on the conveying cylinder between two paper, thereby cannot carry out normal overlay film; Yet this desirable state needs point-device power operation, with current mechanical level, is difficult to reach this effect; Therefore, can only by paper limit scrap (bridge) link together, then by film layer, these continuous paper are carried out to overlay film, and before overlay film, need to control the width of paper overlap joint, i.e. the width of adjacent two hanging togothers parts.Yet general paper positioning device cannot accurately be controlled and take a mouthful width in the market, especially the location of first paper.

Summary of the invention

Deficiency in view of prior art existence, the utility model innovation provides a kind of and can accurately control the paper positioning device that paper is taken mouthful width, this paper positioning device includes frame and delivery platform, described delivery platform top is provided with rotating shaft, in described rotating shaft, be installed with front lay, it is characterized in that: in described rotating shaft, be also installed with swing arm, described swing arm is connected with cylinder-driven, relative paper feeding direction one side of described front lay is provided with the detection head that puts in place, described front lay opposite side is provided with step pitch detection head, the described detection head that puts in place is all electrically connected to PLC with step pitch detection head, described cylinder is controlled electromagnetic valve by PLC and is realized corresponding action.

In described rotating shaft, a side of front lay is installed with pinch roller relatively.

One side of the relative paper feeding direction of described pinch roller is provided with pinch roller or bristle brush wheel, and described pinch roller or bristle brush wheel are installed in frame by mounting bracket.

The paper positioning device providing according to the utility model, by the detection head that puts in place, detect first paper, by step pitch detection head, detect ensuing paper, the data that detect are sent to after PLC, by PLC control cylinder, drive rising and falling of front lay again, realize thus the accurate control of paper being taken to mouthful width.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the partial enlarged drawing of front lay part.

The specific embodiment

Unit paper is sent to the left side by the right on delivery platform 1, as shown in Figure 1, except delivery platform 1, this paper positioning device also include frame 3 and be arranged in frame 3 for blocking the front lay 7 of paper, as shown in Figure 2, front lay 7 is fixedly mounted on the left side of rotating shaft 6, and rotating shaft 6 is hinged in frame 3, rotating shaft 6 is rotated like this, and front lay 6 is lifted thereupon or fallen, thereby realizes the location to paper; The rotation of rotating shaft 6 is realized by cylinder 10 transmissions, a cylinder 10 is specifically installed in frame 3, the expansion link of cylinder 10 and swing arm 8 one end are hinged, the other end of swing arm 8 is fixedly connected with rotating shaft 6, front lay 7 has just had power resources like this, and subsequent is exactly when to have controlled problem that front lay 7 is lifted or fallen.

After first paper brought, need front lay 7 to keep off, then front lay 7 is lifted, and allows past first, then front lay 7 is blocked second again, and when two pieces of paper are above opened the width of taking mouthful and met the requirements, front lay 7 is lifted again, wait for the arrival of the 3rd paper, so circulate, to the last one.Therefore, the utility model is provided with in relative paper feeding direction one side of front lay 7 detection head 11 that puts in place, and this detection head 11 that puts in place is for detection of first paper; At front lay 7 opposite sides, step pitch detection head 9 is installed, this step pitch detection head 9 is for detection of subsequent paper, and the detection head 11 that puts in place is all electrically connected to PLC with step pitch detection head 9, and cylinder 10 is by PLC control action.Specific works principle is as follows: first by the distance input PLC of front lay 7 and the detection head 11 that puts in place, when the detection head 11 that puts in place detects first paper through this segment distance, send signal to PLC, PLC drives front lay to fall with regard to control cylinder 10, thereby block first paper, then front lay 7 is lifted immediately, allow first paper deliver to the position at step pitch detection head 9 places, when step pitch detection head 9 detects first paper in correct position, just send signal to PLC, PLC again control cylinder 10 drives front lay 7 to fall, block second paper, mouthful width of taking of first paper and second paper is remained in the scope of setting, subsequent paper is just detected by step pitch detection head 9, the detection head 11 that puts in place no longer detects.First paper and second paper have been held successfully after head, and subsequent paper just circulation goes down, and have so just formed the continuous form of a row limit scrap (bridge), finally enter film layer and carry out overlay film.

The utility model also in rotating shaft relatively a side of front lay 7 be installed with pinch roller 5, because pinch roller 5 and front lay 7 lay respectively at rotating shaft 6 both sides, when front lay is lifted 7, pinch roller 5 just falls, the pinch roller 5 falling can push away paper forward, is more conducive to the conveying of paper; In addition, in a side of pinch roller 5 relative paper feeding directions, pinch roller or bristle brush wheel 2 are installed, this pinch roller or bristle brush wheel 2 are installed in frame 3 by mounting bracket 4, and pinch roller or hairbrush 2 contribute to paper to be more entirely sent to location, the place ahead.

Claims

1. a paper positioning device, include frame (3) and delivery platform (1), described delivery platform (1) top is provided with rotating shaft (6), in described rotating shaft (6), be installed with front lay (7), it is characterized in that: in described rotating shaft (6), be also installed with swing arm (8), described swing arm (8) is in transmission connection with cylinder (10), described front lay (7) relatively paper feeding direction one side is provided with the detection head that puts in place (11), described front lay (7) opposite side is provided with step pitch detection head (9), the described detection head that puts in place (11) is all electrically connected to PLC with step pitch detection head (9), described cylinder (10) is controlled electromagnetic valve by PLC and is realized corresponding actions.

2. paper positioning device according to claim 1, is characterized in that: a side of the upper relative front lay (7) of described rotating shaft (6) is installed with pinch roller (5).

3. paper positioning device according to claim 2, is characterized in that: described pinch roller (5) relatively side of paper feeding direction is provided with pinch roller or bristle brush wheel (2), and described pinch roller or bristle brush wheel (2) are installed in frame (3) by mounting bracket (4).