JPH089092Y2 - Registration position adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention sets a distance between a pair of guides for registering in a sheet feeding device of a printing machine and moves the pair in the same direction by a certain amount. The present invention relates to a registration position adjusting device that can perform the adjustment.

(Problems to be Solved by the Related Art) When moving the registration position to the left or right in the paper feed registration device, it is preferable to move both guides by the same amount with one dial.

With such a configuration, it becomes unnecessary to adjust the pressure of the flat spring guide (a guide that elastically contacts the side surface of the paper) against the holding plate guide again, improving the operability of the printing machine and shortening the print preparation time. Can be planned.

When moving the registration position to the left or right, the conventional registration device of the type in which the left and right guides are moved by the same amount with the respective knobs always adjusts the flat spring guide pressure to the holding plate guide during the travel to move the position. I had to fix it.

A proposal has been made for a paper feed register device (actually developed 61-32153) of a printing machine, which attempts to move both guides with one dial.

However, the devices shown as examples have problems in terms of link ratio and fixing method of each shaft and lever,
It does not seem to move exactly the same amount.

The purpose of the present invention is to adjust the flat spring guide pressure to the holding plate guide once, so that even if the registration position of the same size paper is moved left and right, one guide will move both guides by the same amount. Another object of the present invention is to provide a registration position adjusting device that can improve operability by having two functions of moving only one guide (for example, a flat spring guide) left and right.

(Means for Solving the Problems) In order to achieve the above-mentioned object, a register position adjusting device according to the present invention comprises a pair of guides (29, 48) for registering.
In the registration position adjusting device which sets the interval of and moves the pair by a certain amount in the same direction, the first, second, third and The fourth shaft (27,26,20,19) and the first or second shaft
A first guide (29) coupled to any one of the shafts and moving integrally; a second guide (48) coupled to any one of the second or first shafts and moving integrally; A lever shaft (5) which is screwed to the third shaft (20) and is moved back and forth in the axial direction by the rotation of the third shaft (20),
The bearing (3D) pivotally fixed to the lever shaft (5) is attached to the bracket (26A) of the second shaft (26) at one end, and the other bearing (3E) is located on the opposite side to the bearing. ) In the bracket (19A) of the fourth shaft (19)
The first lever (3), which is engaged only by restricting the position of each bearing to the axial direction of the shaft with which it engages, and the bearing (4A at one end, which is pivotally secured to the lever shaft (5). ), The position of the bearing is engaged only with the bracket (27A) of the first shaft (27) in the axial direction of the shaft, and is at the equidistant position on the opposite side of the bearing (4A). A second lever (4) engaged with another member by another bearing (4B), and the first and second shafts (27, 2)
6) a tensioning device (50) for urging the first and second levers (3, 4) toward the third shaft (2)
Means (21) fixed to the other end of (0) for rotating the lever shaft to move the lever shaft, and the other end of the fourth shaft (19), which is screwed so as to freely rotate around the axis and which has the tension device ( A frame plate (1) for supporting the other end of the second shaft (26) and the fourth lever (3) via the first lever (3) and the other end of the second shaft (26) so as to freely move in the axial direction. The axial position of the fourth shaft (19) is restricted by the means (18) for moving the fourth shaft (19) in the axial direction.

(Example) Hereinafter, the present invention will be described in more detail with reference to the drawings.

FIG. 1 is a plan view of a sheet feeding table with a registering device which is an embodiment of a registering position adjusting device according to the present invention.

Paper supplied from a hopper (not shown) from below in the drawing is registered at this portion and supplied to the printing portion.

A pair of guides are assembled between the left frame portion 1 and the right frame portion 2 of the paper feeding unit.
Numerals 29 and 48 are provided, and the position and movement of these elements make registration for feeding.

Shafts 19, 20, 26, and 27 are supported by the left frame plate 1 and the right frame plate 2 so as to be rotatable or movable left and right.

Guide left assembly 29 and guide right assembly 48 are shaft 26, shaft 27
It is provided in connection with.

FIG. 6 is a perspective view of the left guide assembly, and FIG. 7 is a plan view and a side view of the left guide assembly.

The guide left assembly 29 has a guide left block 29A having a hole for loosely fitting the shaft 27 and the shaft 26.
9A is provided with two tapped holes corresponding to the above holes.

A guide plate 29C is integrally provided on the left guide block 29A. The guide plate 29C is provided with a hole for connecting a later-described spring unit 49.

With the left guide block 29A loosely fitted to the shaft 27 and the shaft 26, a thumbscrew 29B can be coupled to any tap hole to fix the assembly to any shaft.

FIG. 8 is a perspective view of the guide right assembly, and FIG. 9 is a side view and a plan view.

The right guide assembly 48 also has a right guide block 48A having holes for loosely fitting the shaft 27 and the shaft 26, as in the above assembly. The right guide block 48A is provided with two tapped holes corresponding to the above holes.

A guide plate 48C is integrally provided on the right guide block 48A.

A spring unit 49 is fixed to the guide plate 48C with a screw 48D.

With the guide right block 48A loosely fitted to the shaft 27 and the shaft 26, a thumbscrew 48B can be coupled to either tap hole to fix the assembly to either shaft.

Axial movement habits of the shafts 26 and 27 are switched by the tension switching device 50.

FIG. 4 is a perspective view of the tension switching device, and FIG. 5 is a plan view and a front view.

The bracket 53 of the tension switching device 50 is fixed to the left frame plate 1, and the spring pressing plate 54 is slidably supported on the right end of the shaft 27.

A screw erected on the spring retainer plate 54 penetrates a gourd hole 53a provided on the bracket 53 and is projected upward.

A switching knob 51 is connected to this screw,
The screw pressing plate 54 is fixed by the knob 51 at the or position of the gourd hole.

The spring 52A penetrating the shaft 27 is inserted between the spring retainer plate 54 and the E ring 55 provided on the shaft 27, and the spring 52B is inserted between the E ring 55 and the retainer plate 54.

The spring 52C is inserted into the shaft 26 and is held between the bracket 53 and the E ring 56 provided on the shaft 26.

FIG. 2 is a perspective view showing a lever assembly and a slide cam of the paper feeding table, and FIG. 3 is a plan view and a side view of the lever assembly.

The lever assembly is mainly composed of a first lever 3, a second lever 4, and a lever shaft 5.

The lever shaft 5 is provided with a female screw, and the screw at the right end of the shaft 20 is connected thereto.

A first lever 3 is supported on the upper end of the lever shaft 5, and a second lever 4 is supported on the lower end of the lever shaft 5 so as to be rotatable at its abdomen. A first lever bearing 3E is provided at one end of the first lever 3, and a first lever bearing 3D is provided at the other end. The distances of the centers of these bearings from said center are equal,
In the figure, dimension C = dimension D.

At one end of the second lever 4, a second lever bearing 4A,
Second lever bearings 4B and 4C are provided on the other end side.

The distances of the centers of these bearings 4A, 4B and 4C from the pivot point are equal, and dimension A = dimension B in FIG.
Is.

A shaft bracket 27A coupled to the right end of the shaft 27 is engaged with the second lever bearing 4A so that the position of the bearing 4A is restricted only in the axial direction of the shaft 27.

The first lever bearing 3D has a shaft bracket 26A connected to the right end of the shaft 26, and the bearing 3E has a shaft 19A.
The shaft bracket 19A coupled to the right end of is engaged so that the position of each bearing is restricted only in the axial direction of the shaft with which it is engaged.

A screw is provided on the left end of the shaft 19 (see FIG. 1),
It is connected to the female screw of the knob dial 18.

The shaft 19 is linearly guided, and when the knob dial 18 is rotated, the shaft 19 is moved to the left or right.

An adjusting knob 21 is provided at the left end of the shaft 20 (see FIG. 1), and the adjusting knob 21 can rotate the shaft 20.

As shown in FIG. 1, the guide roller base 14 is fixed to the right frame plate 2, and slide cam guide rollers 11 and 12 are provided on the upper surface thereof.

The slide cam 10 is the slide cam guide rollers 11, 12
, And is reciprocated by a constant stroke in the WZ direction of FIG. 2 for each sheet of paper fed in synchronism with the operation of a sheet feeding mechanism (not shown).

The cam portions 10a and 10b of the slide cam 10 have bearings 4B and 4C.
Moved back and forth between.

The operation of moving the positions of the left and right guide assemblies 29, 48 in the same direction by the same amount will be described.

When the adjusting knob 21 (see FIG. 1) is rotated clockwise, the shaft 20 fixed to the adjusting knob 21 rotates in the same direction (to the right).

When the shaft 20 rotates to the right, the lever shaft 5 connected to the male screw portion of the shaft 20 is moved in the arrow Y (left direction).

The spring in the tension switching device 50 causes the second lever 4 to move the bearing 4B or 4C of the second lever 4.
Is pressed against the slide cam 10.

The bearing 3E of the first lever 3 is pressed against the bracket 19A fixed to the shaft 19. When the position of the knob 51 is set by the tension switching device 50, the spring 52A of the two springs is compressed and a force for pressing the shaft 27 in the arrow X direction is generated. The shaft 27 is pushed in the arrow X direction.

The second lever 4 is a bracket 27 provided on the shaft 27.
It is connected to A by the bearing 4A of the second lever 4.

Therefore, the second lever 4 pushes the bearing 4B of the second lever 4 against the slide cam 10 with the pushing force of the shaft 27 as the fulcrum.

The first lever 3 is pushed in the X direction by the shaft bracket 26A.

The shaft 26 is pushed in the arrow X direction (FIG. 1) by the tension force of the spring 52C in the tension switching portion 50.

The bearing 3D of the first lever 3 is pushed in the arrow X direction by the shaft bracket 26A to apply a rotational force in the clockwise direction to the first lever 3 with the lever shaft 5 as a fulcrum. First lever 3
Bracket 19A with bearing 3E of is fixed to shaft 19
In the direction of arrow Y.

In such a state of the second lever 4 and the first lever 3, if the lever shaft 5 is moved in the direction of the arrow Y by the operation of the adjusting knob 21, the respective levers respectively have the bearing 4
B, bearing 3A with bearing 3E as fulcrum
Move D in the direction of arrow Y.

As a result, the shaft 27 and the shaft 26 are pushed in the arrow Y direction.

Dimension A from the central axis of the second lever 4 to the bearing 4A
And the dimension B from the central axis of the second lever 4 to the bearing 4B is the same, and the dimension C from the central axis of the first lever 3 to the bearing 3D and the dimension C from the central axis of the first lever 3 to the bearing 3E The dimension D is the same.

Therefore, the movement amount of the shaft 27 and the shaft 26 is twice the movement amount of the lever shaft 5.

Therefore, when the lever shaft 5 is moved by the rotation of the shaft 20, the shaft 26 and the shaft 27 are moved in the same direction by the same amount.

If the shafts 26 and 27 move in the same amount and in the same direction, the guide left assembly 29 fixed to the shaft 27 with the thumbscrew 29B and the shaft 26
The right guide assembly 48 fixed by the thumbscrew 48B naturally moves in the same amount and in the same direction.

When the dial 21 is rotated counterclockwise, all the operations are performed in the opposite direction, and the left guide assembly 29 and the right guide assembly 48 are moved by the same amount in the arrow X direction.

Next, the operation of moving only the right guide assembly 48 having the spring unit 49 to adjust the interval between the guides will be described.

When the knob dial 18 is rotated in the clockwise direction, the shaft 19 connected by the screw portion of the knob dial 18 is moved in the arrow Y direction.

When the shaft 19 is moved in the arrow Y direction, the bearing 3E of the first lever 3 is pulled in the arrow Y direction by the bracket 19A fixed to the shaft 19. The first lever 3 moves the bearing 3D in the arrow X direction with the cam follower lever shaft 5 as a fulcrum. If the bearing 3D is moved in the arrow X direction, the shaft 26 fixed to the bracket 26A
Are moved in the direction of arrow X.

The movement of the shaft 26 causes the right guide assembly 48 fixed to the shaft 26 with the thumbscrew 29B to move independently.

If the knob dial 18 is rotated counterclockwise, the knob dials 18 are all moved in the opposite direction, and the right guide assembly 28 is independently moved in the arrow Y direction.

(Effects of the Invention) As described in detail above, the registering position adjusting device according to the present invention sets the interval of one guide for registering and moves the pair in the same direction by a certain amount. In the adjusting device, the coupling between the shaft for supporting and guiding the guide and the lever is coupled with the bearing and the bracket.

Therefore, by rotating the third shaft and moving the lever shaft, both guides can be smoothly moved in the same amount and in the same direction.

In addition, the means for moving the fourth shaft in the axial direction causes the first
The lever can be moved independently. Therefore, only one guide (for example, a flat spring guide) can be moved left and right.

Thus, according to the present invention, it is possible to provide a registration position adjusting device which has two functions and can improve an operator.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a registration position adjusting device according to the present invention. FIG. 2 is a perspective view showing a lever assembly and a slide cam of the apparatus of the above embodiment. FIG. 3 is a plan view and a side view of the lever assembly of the apparatus of the above embodiment. FIG. 4 is a perspective view of the tension switching device of the apparatus of the above embodiment. FIG. 5 is a plan view and a front view of the tension switching device of the apparatus of the above embodiment. FIG. 6 is a perspective view of the left side of the guide of the apparatus of the above embodiment. FIG. 7 is a plan view and a side view on the left side of the guide of the apparatus of the embodiment. FIG. 8 is a perspective view of the guide right side of the apparatus of the above embodiment. FIG. 9 is a side view and a plan view on the left side of the guide of the apparatus of the embodiment. 1 ... Left frame plate, 2 ... Right frame plate 3 ... 1st lever 3E, 3D, ... 1st lever bearing 4 ... 2nd lever 4A, 4B, 4C ... 2nd lever bearing 5 ... Lever shaft 10 ... Slide cam 11, 12… Slide cam Guide roller 14… Guide roller base 18… Knob dial 19… 4th axis, 19A… Axis bracket 20… Third axis 21… Adjustment knob 26… Second axis, 26A… Axis Bracket 27 ... 1st axis, 27A ... Axis bracket 29 ... Left guide assembly 29A ... Left guide block 29B ... Thumbscrew 29C ... Guide plate 48 ... Right guide assembly 48A ... Right guide block 48B ... Thumbscrew 48C ... Guide plate 49 ... Spring unit 50… Tension switching device 51… Switching knob 52A, 52B, 52C… Tension spring 53… Shaft bracket 54… Spring retainer plate 55, 56… E-ring

Claims (1)

[Scope of utility model registration request] 1. A registration position adjusting device for setting a distance between a pair of guides for registering and moving the pair by a constant amount in the same direction, in a direction perpendicular to the paper feeding direction along the paper feeding direction. A first, a second, a third and a fourth shaft which are sequentially arranged, a first guide which is coupled to either the first or the second shaft and moves integrally, the second or the first shaft A second guide that is coupled to one of the shafts and moves integrally, and is screwed to one end of the third shaft.
And a lever shaft that is axially advanced and retracted by rotation of the shaft of the second shaft, and another bearing that is pivotally fixed to the lever shaft and is attached to the bracket of the second shaft at the same distance on the opposite side of the bearing from the bracket of the second shaft. A first lever, which is restricted and engaged only in the axial direction of the shaft in which the position of each bearing engages with the bracket at one end of the fourth shaft by a bearing, and is pivotally fixed to the lever shaft. The bearing of one end engages the bracket of the first shaft with the position of the bearing. The bearing is restricted only in the axial direction of the shaft, and the other bearing is at the equidistant position on the opposite side of the bearing from the other member. A second lever in contact engagement with the first and second shafts, respectively.
A tension device for urging the lever shaft in the direction of the lever, means for rotating the shaft to move the lever shaft by being fixed to the other end of the third shaft, and freely rotating around the other end of the fourth shaft. The position in the axial direction is regulated by a biasing force applied to the fourth shaft via the second shaft and the first lever by the tension device and a frame plate that supports the other end so as to freely move in the axial direction. Register position adjusting device comprising means for moving the fourth shaft in the axial direction.