JPH10297136A - Cover positioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a cover-making labor and, at the same time, realize an easy dealing even under the condition that the frequency of the changing of the designation of a cover-making position is high. SOLUTION: In this device, a stopper 11, which determines the position of a cover 7 pasting to the pasted back of a sheet-block 10, is threaded to a screw shaft 13, which rotates by being driven with a motor 14, so as to drive the motor 14 on the basis of an output signal representing the sum of the dimension L between the end edge of the cover 7 and the edge of a back and medial magnitude size 1/2T of the thickness of the sheet-block 10 or the dimension L between the end edge of the cover 7 and the edge of the back in order to set the position of the stopper 11. Thus, the mechanization of the positioning of the cover at a cover-making is contrived.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to positioning of a cover when attaching a cover during bookbinding.

[0002]

2. Description of the Related Art FIG. 3 is a schematic diagram illustrating an example of a perfect binding apparatus which is a perfect binding apparatus. And a discharge section including a discharge guide plate 9, and each section is moved so as to pinch a bundle of printed sheets 10 printed between a movable clamp plate 5 and a fixed clamp plate 6. It is configured.

A sheet bundle 10 held between clamp plates 5 and 6
In the milling unit, the back side of the sheet bundle 10 is flush-aligned by the milling machine 1, the glue unit is glued to the back surface of the sheet bundle 10 flush-aligned by the gluing unit 2, and sent to the nip unit. Here, after the cover is attached, the sheet is sent to the discharge section, dropped on the discharge guide plate 9, and discharged.

[0004] In the nip portion, one of the covers 7 of the cover stocker (or paper feed table) is transported in advance on the nip plates 3 and 4 and is positioned at a predetermined position.
The paper bundle 10 glued to the back is positioned above the nip plates 3 and 4 of the above, and the nip plates 3 and 4 and the bottom plate 8 are raised, and the cover 7 is stuck on the back of the paper bundle 10 and almost At the same time, the nip plates 3 and 4 are driven to fasten the vicinity of the rear edge of the sheet bundle 10 from both sides, and the cover 7 is folded and attached along the sheet bundle 10.

[0005] The positioning of the cover 7 at the nip portion is performed by a stopper 11 made movable as shown in FIG.
Done in That is, in FIG. 4, the stopper 11 is slidably mounted on the guide shaft 12, and the stopper 11 is positioned so that the portion of the cover 7 located on the back of the sheet bundle 10 is located between the nip plates 3 and 4, that is, on the upper surface of the bottom plate 8. 11 is moved and fixed at a predetermined position by, for example, screwing. The paper is transported by a paper feeding device (not shown) (FIG. 4).
In this case, the cover 7 coming from the left side) comes into contact with the positioned stopper 11 and its position is determined.

In attaching the cover 7, the position where the cover 7 is attached to the sheet bundle 10 is often specified. The designation includes positioning the predetermined position of the cover 7 at the center of the back of the sheet bundle 10 (mainly based on the back letters), and specifying the predetermined position of the cover 7 at the corner of the back of the sheet bundle 10. (Mainly on the basis of design), etc.

In the case of the former designation, the booklet finishing thickness, that is, the back thickness T is measured in advance, and １ ／ T of the back thickness is measured.
Must be added to the dimension L of the cover edge (the dimension from the edge of the cover to the back edge of the booklet) to determine the position of the stopper. In the latter case, it is necessary to determine the position by measuring the dimension L of the cover edge.

[0008]

Conventionally, the positioning of the stopper corresponding to the designation of the cover attaching position has been manually performed, and skill is required to properly use both cases to position the cover. However, in actual practice, each time the designation of the position of the cover is changed, some test bookbinding is performed to determine the position of the stopper. There is a problem that it is difficult to deal with the case where the frequency of changing the designation of the position is high.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and it is possible to reduce the time and effort required to attach a cover, and to easily cope with a case where the mounting position of the cover is frequently changed. It is an object to provide a positioning device.

[0010]

SUMMARY OF THE INVENTION An object of the present invention is to provide a movable stopper for abutting and positioning a conveyed cover sheet, a driving device for driving the stopper to move, and a position corresponding to a designated mounting position of the cover sheet. And a control device for outputting the signal to the drive device, wherein the stopper is positioned at a position corresponding to the designated mounting position of the cover by the output of the control device.

According to this feature, it is possible to mechanically set the position of the stopper, so that the time and effort for positioning the cover can be reduced. Can be handled.

It is still another object of the present invention to provide a cover positioning device which includes a movable stopper for abutting and positioning a conveyed cover sheet and for abutting the stopper to determine the position of the cover sheet. A drive unit and a control unit for controlling the drive unit; a control unit for calculating a half-value dimension of the thickness of the sheet bundle on which the cover is attached; and a dimension from the edge to the back edge of the cover and the half-value. Calculating means for obtaining the sum of the dimensions and selecting means for selecting either a dimension from the edge of the cover to the back edge or a dimension from the edge of the cover to the center of the back; This is achieved by positioning the stopper by an output signal of the control device having the following dimensions.

[0013] According to this feature, the controller measures the size from the edge to the back edge of the cover, the thickness of the sheet bundle to be covered, the thickness of one sheet of the sheet bundle to be covered, and the number of sheets of the sheet bundle. Simply input and select the cover with reference to the position at the center of the back of the booklet or to the position at the back corner (back edge) of the stack of sheets. The position of the stopper that determines the position of the cover is set accurately. Therefore, it is possible to easily position the cover without performing trial bookbinding.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a side view of a cover positioning device immediately before attaching a cover according to the embodiment of the present invention, and FIG. 2 is a side view of the cover positioning device immediately after attaching the cover of the embodiment shown in FIG. The same parts as those in FIGS. 3 and 4 are denoted by the same reference numerals.

In FIGS. 1 and 2, reference numeral 13 denotes a screw shaft, and a stopper 11 is screwed to the screw shaft 13;
The stopper 11 moves linearly by the rotation of the screw shaft 13.
One end of the screw shaft 13 is connected to a rotation shaft of a motor 14 such as a stepping motor. Reference numeral 16 denotes a control device including a microcomputer. The output signal is sent to a motor drive circuit 15, and the motor 14 is driven according to the output signal of the control device 16. That is, the screw shaft 1
3, a driving device for the stopper 11 is formed by the motor 14 and the motor driving circuit 15, and the driving of the driving device is controlled by an output signal of the control device 16.

The control unit 16 selects a dimension L from the edge to the back edge of the cover 7 measured in advance, the thickness t of one sheet of the sheet bundle 10 to be covered, the number n of sheet bundles, and an output signal. Input means for inputting the command S; calculating means for calculating a half-value dimension 1 / 2T of the thickness T (t × n) of the sheet bundle 10 for attaching the cover; and a dimension L from the edge to the back edge of the cover.
And a calculating means for calculating a sum (L + ／ T) of the half value and the half value size 1 / 2T.

When the cover positioning apparatus thus constructed is used for attaching a cover, the dimension L from the edge to the back edge of the cover of the cover 7, the thickness t of one sheet of the sheet bundle 10 to be covered, the sheet bundle The number n of sheets is input, and the cover is attached based on the position at the center of the back of the sheet
A selection command S sets whether to use the position located at the corner (rear edge) of the back of 0 as a reference.

When the front cover is attached to a position located at the center of the back surface of the sheet bundle 10, the control device 16 determines the sheet bundle 10 based on the thickness t of one sheet of the sheet bundle 10 and the number n of the sheet bundle 10. Ｔ of the thickness T of the cover is determined, and the half-width Ｔ T is determined by the dimension L from the edge to the back edge of the cover.
(L + ／ T), and sends a control signal based on the value to the motor drive circuit 15 to set the stopper 11 at a predetermined position. Note that the stopper 11 returns to a predetermined origin position at the end of attaching the cover or at the start of attaching the cover.

In the case where the front cover is attached to a position located at a corner (rear edge) on the back of the sheet bundle 10, the control unit 16
Sends a control signal based on the dimension L from the edge to the back edge of the cover to the motor drive circuit 15, and sets the stopper 11 at a predetermined position.

In the above embodiment, the control device 1
6, the thickness t of one sheet of the sheet bundle 10 and the number n of the sheet bundle 10 are input. When the printing machine and the bookbinding machine are connected to perform printing and bookbinding online, By counting the sent printed signal (or paper feed signal) for each sheet and reading the count value with a print end signal for one book, the number n of sheets in a bundle is obtained, which is convenient. The thickness T of the sheet bundle 10 may be input.

The stopper 11 is screwed to the screw shaft 13 and is moved by the rotation of the screw shaft 13 by the rotation of the motor 14. However, the stopper 11 is replaced by a guide shaft, and the stopper 11 is hydraulically or hydraulically driven. It may be made to move linearly by air pressure.

[0022]

As described in detail above, according to the present invention,
Since the stopper for positioning the cover is mechanically positioned, it is possible to easily cope with a change in the mounting position of the cover and the thickness of the booklet. In addition, it is possible to connect a plurality of printing machines to the bookbinding machine.

[Brief description of the drawings]

FIG. 1 is a side view of a cover positioning device immediately before a cover is attached according to an embodiment of the present invention.

FIG. 2 is a side view of the cover positioning device immediately after the cover is attached according to the embodiment shown in FIG. 1;

FIG. 3 is an explanatory diagram of a perfect binding apparatus.

FIG. 4 is a side view of a conventional cover positioning device immediately before attaching a cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Milling machine 2 Glue machine 3, 4 Nip plate (clamping plate) 5, 6 Clamp plate 7 Cover 8 Bottom plate 10 Paper bundle 11 Stopper 13 Screw shaft 14 Motor 15 Drive circuit 16 Control device L Dimension from edge to back edge of cover T Thickness of paper bundle t Thickness of paper n Number of paper bundles

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Katsumi Yamaguchi Inventor Katsumi Yamaguchi 1601 Asahi Jinoshita, Shin-Asahi-cho, Takashima-gun, Shiga Prefecture Horizon International Co., Ltd.

Claims (3)

[Claims] 1. A movable stopper for abutting and positioning a conveyed cover sheet, a driving device for moving and driving the stopper, and a control for outputting a signal corresponding to a designated mounting position of the cover sheet to the driving device. A cover positioning device, wherein the stopper is positioned at a position corresponding to a designated mounting position of the cover by an output of the control device. 2. A cover positioning device which includes a stopper capable of adjusting a position and which comes into contact with the stopper to determine a position of a cover, wherein a driving device for driving the stopper and a control device for controlling the driving device are provided. Calculating means for determining the half-value dimension of the thickness of the sheet bundle on which the cover is attached to the control device; calculating means for calculating the sum of the dimension from the edge to the back edge of the cover and the half-value dimension; Selecting means for selecting any of a dimension to an edge or a dimension from an edge of the cover to the center of the back surface, and positioning the stopper by an output signal of the control device having a dimension selected by the selecting means. A cover positioning device, comprising: 3. The calculating means for calculating the half-value dimension of the thickness of the sheet bundle on which the cover is to be attached includes calculating means for calculating the thickness of the sheet bundle based on the thickness of one sheet of the sheet bundle and the number of sheets of the sheet bundle. Item 2. The cover positioning device according to Item 2. .