# US 8,770,574 B2 · Servo edge pressing paper feeding device

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- Number: US 8,770,574 B2
- Document ID: US8770574B2
- Status: Granted
- Kind: B2
- Application number: 13/376,353
- Filed: 2011-05-04
- Published: 2012-04-05
- Granted: 2014-07-08
- Earliest claimed: 2010-08-09
- Assignees: Qingdao Meiguang Machinery Co., Ltd.
- Applicants: Yanyou Zhu; Yunlong Zhang; Zonghua Xu
- Inventors: Yanyou Zhu; Yunlong Zhang; Zonghua Xu
- Web page: https://patentgrep.com/patent/US8770574B2

## CPC

- B65H 3/0692: {Vacuum assisted separator rollers}
- B65H 3/063: {separating from the bottom of pile (B65H3/0615, B65H3/0623 take precedence)}
- B65H 3/0676: {with two or more separator rollers in the feeding direction}
- B65H 5/062: {between rollers or balls}
- B65H 7/00: Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H 2404/133: Limited number of active elements on common axis
- B65H 2406/3122: Rollers
- B65H 2511/13: Thickness
- B65H 2511/224: Nip between rollers, between belts or between rollers and belts
- B65H 2513/10: Speed
- B65H 2701/1762: Corrugated
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

## Abstract

A paper feeding mechanism includes a vacuum absorption variable-speed paper feeding mechanism and a vacuum absorption constant-speed paper feeding mechanism, two edge pressing wheels are installed on a edge pressing paper feeding shaft arranged above a constant-speed paper feeding wheel in the middle, the gaps between the edge pressing wheels and the constant-speed paper feeding wheel in the middle are smaller than the thickness of a paper board, and the distance between the two edge pressing wheels is adjusted by moving on the edge pressing paper feeding wheel shaft.

## Claims

### Claim 1

An edge pressing paper feeding device comprising a paper feeding mechanism and a control system; wherein the paper feeding mechanism comprises:
a vacuum absorption variable-speed paper feeding mechanism comprising at least a first variable-speed paper feeding wheel group, a second variable-speed paper feeding wheel group, and a third variable-speed paper feeding wheel group, a first vacuum air suction box, and a servo motor;
a vacuum absorption constant-speed edge pressing paper feeding mechanism comprising at least three constant-speed paper feeding wheel groups, two edge pressing wheels and a second vacuum air suction box, and
an edge pressing paper feeding wheel shaft;
said two edge pressing wheels are installed on the edge pressing paper feeding wheel shaft, which shaft is arranged above a middle one of the constant-speed paper feeding wheel groups;
a distance between the two edge pressing wheels is adjusted by moving the two edge pressing wheels on the edge pressing paper feeding wheel shaft, and
gaps between the edge pressing wheels and the middle one of the constant-speed paper feeding wheel groups are smaller than the thickness of a paper board,
wherein:
said three variable-speed paper feeding wheel groups are all connected with the servo motor, and the servo motor is controlled by a servo controller of the control system, and
a photoelectric encoder is arranged at an end of the edge pressing paper feeding wheel shaft and an output signal of the photoelectric encoder is connected to a PLC of the control system, and the output signal of the PLC of the control system is connected to the servo controller.

### Claim 2 (depends on 1)

The edge pressing paper feeding device according to claim 1, wherein the constant-speed paper feeding wheel groups of said vacuum absorption constant-speed edge pressing paper feeding mechanism comprise a first row of constant-speed paper feeding wheels, a second row of constant-speed paper feeding wheels and a third row constant-speed paper feeding wheels, the three rows of constant-speed paper feeding wheels are connected by a synchronous belt to ensure that they are at the same linear speed, and
a gear is arranged at an end of the second row of constant-speed paper feeding wheels, and is engaged with a gear arranged at the end of the edge pressing paper feeding wheel shaft, and the other end of the edge pressing paper feeding wheel shaft is equipped with a synchronous pulley.

### Claim 3 (depends on 1)

The edge pressing paper feeding device according to claim 1, wherein said edge pressing wheels are arranged on the edge pressing paper feeding wheel shaft via a steel ball, wedge-caulking, a taper sleeve, and a compression nut, and the edge pressing paper feeding wheel shaft has a measure scale.

### Claim 4 (depends on 2)

The edge pressing paper feeding device according to claim 2, wherein said edge pressing wheels are arranged on the edge pressing paper feeding wheel shaft via a steel ball, wedge-caulking and a taper sleeve, and a compression nut, and the edge pressing paper feeding wheel shaft has a measure scale.

### Claim 5 (depends on 1)

The edge pressing paper feeding device according to claim 1, wherein each of said three variable-speed paper feeding wheel groups includes a servo motor and a servo controller.

### Claim 6 (depends on 4)

The edge pressing paper feeding device according to claim 4, wherein each of said three variable-speed paper feeding wheel groups includes a servo motor and a servo controller.

### Claim 7 (depends on 3)

The edge pressing paper feeding device according to claim 3, wherein each of said three variable-speed paper feeding wheel groups includes a servo motor and a servo controller.