JPH0732088Y2 - Thickness adjusting device for backing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a thickness adjusting device for adjusting the vertical position of an upper belt frame in accordance with the thickness of a booklet in a backing machine.

[Problems to be solved by conventional techniques and devices]

In the conventional thickness adjusting device of this type, the handle is manually rotated to elevate and lower the upper belt frame for feeding the booklet to correspond to the thickness of the booklet. Therefore, the operation required time and skill.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention solves the above-mentioned problems. A receiving surface portion for receiving a booklet, a first sensor for detecting an insertion for detecting a booklet inserted while sliding on the receiving surface portion, and a booklet at a back portion of the receiving surface portion. A second sensor that detects that the booklet is inserted to the side, a pressing member that moves up and down integrally with the upper belt frame, and a third sensor that detects that the booklet is pressed by the pressing member to the receiving surface portion. A control device for issuing a command signal for raising and stopping the upper belt frame by a signal from the first sensor, lowering the upper belt frame by a signal from the second sensor, and stopping by a signal from the third sensor; And a drive mechanism for moving the upper belt frame up and down according to a command signal.

[Action]

If the booklet is inserted from one side to the other (back side) along the receiving surface, the vertical position of the pressing member with respect to the receiving surface is automatically determined, and accordingly, the upper belt frame that moves up and down together with the receiving surface. The vertical position of the booklet is determined and corresponds to the thickness of the booklet.

More specifically, if the booklet is slid on the receiving surface portion from one side, the first sensor detects that the first sensor has started to be inserted first, and the booklet can be inserted via the control device and the drive mechanism. The pressing member rises to the height, and the booklet can be inserted into the back of the receiving surface. When reaching the inner part, the second sensor detects this and lowers the pressing member and the upper belt frame via the control device and the drive mechanism. When the pressing member strongly presses the booklet on the receiving surface to some extent, the third sensor detects it and stops the pressing member and the upper belt frame via the control device and the drive mechanism. The stop position is the normal position of the upper belt frame corresponding to the thickness of the booklet. However, in the present invention, this automatically determined position is
Defined as "regular position". In other words, this automatically determined position may be finely adjusted manually or automatically after that, but since the thickness adjustment has been completed at the previous stage,
This is called a "regular position".

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

In FIG. 2 viewed from the front side and FIG. 7 which is a schematic view of the power transmission system viewed from the back side, 1 is an upper conveyor belt, 2 is a lower conveyor belt, and the upper conveyor belt 1 is an upper belt. It is suspended in an endless manner between the upper pulley 4 on the paper feed side and the upper pulley 5 on the paper discharge side, which are arranged on the front and rear ends of the frame 3. That is, the left side in FIG. 2 and the right side in FIG. 7 correspond to the paper feed side to which the booklets 6 ...

The lower conveyor belt 2 is suspended on a large number of pulleys arranged inside the back surface of the lower frame 7. In the illustrated example, the lower feed belt 8a and the lower discharge pulley are disposed on the upper edge of the lower frame 7. 8b, and an endless path returning from the paper discharge side lower pulley 8b to the paper feed side lower pulley 8a via the drive pulley 9, the chain drive pulley 10 and the like.

Then, a booklet 6 such as a form is sandwiched between the sandwiched portions 1a and 2a of the upper and lower transport belts 1 and 2 which move in the same direction along the boundary between the upper belt frame 3 and the lower frame 7, and the arrow A Although it is conveyed in the direction, a sticking unit 14 including a rising guide 13 and an auxiliary belt 11 for folding back the tape 12 wound around the booklet 6 is provided in the middle of the path.
As the booklet 6, used is a paper sheet in which each piece of paper has been superposed in advance in the previous step by gluing or wire binding.

The tape 12 used is one that adheres to water, and is used as a feeding roller for sequentially feeding the tape 12 from the tape reel 15 shown in FIG.
16 is provided in the vicinity of the tape reel 15 and forms a U-shaped slack portion 12a from the tape reel 15, and then the tape guide shaft 1
After passing through 7, etc., it passes between the pressure roller 18 and a capstan roller (not shown), passes through the tape table 19, and then is cut into a proper length by a cutter. The cut tape 12 on the front end side is wetted with water in the water tray 20 via the water drum 21, and is sent out between the lower surface of the booklet to be conveyed and the reversing drum 22 in contact with the booklet, and the sticking unit 14 At
Tape 12 is attached to the back of the booklet while being folded,
It is sent downstream (to the right in FIG. 2).

Then, slightly to the left of the upper end on the front side shown in FIG. 2, the upper belt frame 3 is moved up and down corresponding to booklets of various thicknesses, and the upper and lower conveyor belts 1 and 2 (see FIG. 7). A thickness adjusting device B for adjusting the interval between the clasping parts 1a, 2a is provided.

FIG. 1 is an enlarged perspective view of a main part thereof, and FIGS. 3 to 5 are schematic configuration explanatory views. 1 and 3 to 5, the thickness adjusting device B has a receiving surface portion 23 for receiving the booklet 6, and the booklet 6 is inserted along the receiving surface portion 23 in the arrow C direction. That is, the horizontal plate member 24 is fixed to the lower frame 7 and the upper surface thereof is used as the receiving surface portion 23. Reference numeral 25 is a first sensor that first detects the booklet 6 inserted in the direction of the arrow C near the insertion port, and a limit switch or an optical sensor is used. A detection lever 27 that is pivotally supported around, a fan-shaped detected piece portion 28 that is connected to the base of the lever 27, and a sensor body that detects the detected piece portion 28 by light or magnetism. It is composed of 29 mag. FIG. 3 shows a state in which the booklet 6 is not present, the tip of the detection lever 27 is stationary near the receiving surface portion 23 (or the same as or less than the receiving surface portion 23), and the booklet 6 is in the direction of arrow C. If it is plugged in from the detection lever 27 as shown in Fig. 4 (and Fig. 5).
Swings upward, and the sensor body 29 detects the movement.

Reference numeral 35 denotes a second sensor for detecting that the booklet 6 has been inserted to the inner side of the receiving surface portion 23. In the illustrated example, the laser light emitting portion 30 is provided at the right end of the receiving surface portion 23 with a maximum booklet thickness or more. It is fixed to the lower frame 7 side with a space of, and the plate member 24 has through holes.
31 is provided, and an optical sensor is attached to the back surface of the plate member 24. Other than this, a limit switch, a reflection type optical sensor, or the like can be freely used as the second sensor 35.

Reference numeral 32 denotes a pressing member that is fixed to a part of the upper belt frame 3 and is made of a bent plate material, a mold material, or the like, and moves up and down together with the upper belt frame 3.

Reference numeral 33 denotes a third sensor fixed to the back surface of the plate member 24 and having its contact 33a inserted into the through hole 34 of the plate member 24. The contact 33a is at the same height or slightly above the receiving surface portion 23. If the booklet 6 is mounted in a projecting manner and the booklet 6 is simply placed on the receiving surface portion 23, the contactor 33a does not operate, and as shown in FIG. When the booklet 6 is pressed, this is detected.

Reference numeral 36 in FIG. 3 is a control device, which is composed of an electronic circuit such as a microcomputer, and includes a first sensor 25, a second sensor 35, and a third sensor 35.
The booklet detection signals a, b, c from the sensor 33 are input to the control device 36.

Reference numeral 37 denotes a drive mechanism for raising and lowering the upper belt frame 3 by various signals f from the control device 36 (as shown in FIG. 3), a forward / reverse motor 38, a screw shaft 39 rotated by the motor 38, A nut member 40 that reciprocates by the rotation of the screw shaft 39, a swing arm 41, and the like are included. As shown in FIGS. 3 and 2, the upper belt frame 3 is held by a pair of swing arms 42 and 43,
One swing arm 42 and the swing arm 41 are integrally connected via a support shaft 44, and when the nut member 40 reciprocates, the swing arm 42
41 and the swing arm 42 swing, and the upper belt frame 3 moves up and down as indicated by arrows E and F.

In the flowchart shown in FIG. 6 and parts 3 to 5, if the booklet 6 is slightly inserted in the direction of arrow C, the first sensor 25 first detects it and sends a signal a to the controller. Then, the upper belt frame 3 is lifted and stopped. That is, as the upper belt frame 3 rises, the pivot shaft 26 also rises, the detection lever 27 swings to the right, and at the position where the detected piece 28 is finally detected by the first sensor 25, The raising of the frame 3 and the pivot shaft 26 is stopped. Therefore, if the booklet 6 is inserted further into the inner portion as shown in FIG. 5, the second sensor 35 detects this and sends out the signal b, lowers the upper belt frame 3, and from the solid line in FIG. The pressing member 32 presses down the booklet 6 like a virtual line. By this pushing down force, the third sensor 33
Is activated, and the signal c causes the upper belt frame 3
Stops descending.

As is apparent from FIG. 3, the above-mentioned command signals f from the control device 36 are input to the forward / reverse rotation motor 38 of the drive mechanism 37 to swing the swinging arm 42, whereby the upper belt frame 3 Is moving up and down.

As described in FIG. 7, since the upper belt 3 is provided with the upper transport belt 1 for feeding booklets, the sandwiched portion 1a of the upper transport belt 1 and the lower transport belt 2 of the lower frame 7 are The distance from the attached portion 2a can be adjusted by the lifting operation of the upper belt frame 3.

According to the present invention, it may be desirable to perform additional fine adjustment manually or automatically after adjusting the mutual spacing between the upper and lower clamp portions 1a and 2a corresponding to the thickness of the booklet 6.

It should be noted that the booklet 6 may be inserted from right to left or from front to back.

[Effect of device]

When the booklet 6 is constructed as described above and the thickness of the booklet 6 is frequently changed, the booklet 6 is placed on the receiving surface 23,
If you gradually insert it, the thickness can be adjusted automatically and quickly without any skill, and its practical effect is remarkable.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an embodiment of the present invention, FIG. 2 is an overall perspective view of a backing machine, and FIG. 3 is a schematic configuration explanatory view of a specific example of the present invention. FIG. 6 is an operation explanatory diagram, FIG. 6 is a flowchart diagram, and FIG. 7 is an explanatory diagram of the power transmission system seen from the rear surface. 3 ... upper belt frame, 6 ... booklet, 23 ... receiving surface,
25 ... first sensor, 32 ... pressing member, 33 ... third sensor, 35 ... second sensor, 36 ... control device, 37 ... drive mechanism, f ... signal.

Claims (1)

[Scope of utility model registration request] 1. A receiving surface portion 23 for receiving the booklet 6, and a first insertion detecting portion for detecting the booklet 6 inserted while sliding on the receiving surface portion 23.
The sensor 25, the second sensor 35 that detects that the booklet 6 has been inserted to the inner side of the receiving surface 23, and the upper belt frame 3
A pressing member 32 that moves up and down integrally with the upper belt, a third sensor 33 that detects that the pressing member 32 presses the booklet 6 against the receiving surface 23, and a signal from the first sensor 25 that causes the upper belt to move. A control device 36 that outputs a command signal f that raises and stops the frame 3 and then lowers it with the signal from the second sensor 35 and stops it with the signal from the third sensor 33, and the upper belt by the command signal f. Drive mechanism 37 for raising and lowering the frame 3
A thickness adjusting device for a back-applying machine, comprising: