JPH0235712Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention is a sheet-fed printing machine in which the side edge of the paper fed from the paper feeder onto the insert plate is pulled in the width direction of the paper and brought into contact with a gauge. This invention relates to a horizontal needle device that aligns the register in the width direction.

[Prior art]

Between the paper feeding device and the printing device of a sheet-fed printing press,
A difference plate is provided that supports and slides the sheets of paper that are sent out one by one from the paper feeder, and at the tip of this difference plate there is a front support device that aligns the register of the paper in the vertical direction, and a front support device that aligns the paper in the width direction. A horizontal needle device is provided.

FIG. 1 is a front view of a conventional horizontal needle device, and to explain this based on the same figure, a cam that rotates and is connected to a shaft on the driving side by a coupling ring 2 is connected between the left and right machine frames 1. A shaft 3 is mounted on a shaft, and a square stay 4 is supported directly above the camshaft 3 with both ends fixed to the frame 1. A pair of horizontal needle devices, generally indicated by reference numeral 5, are formed completely symmetrically to each other, and are supported by a cam shaft 3 and a square stay 4 in close proximity to the left and right frames 1, respectively. The paper holder 6 of the horizontal needle device 5 is L when viewed from the front.
It is formed in a letter shape, and a square stay 4 is passed through the square hole and fixed so as to be movable and adjustable in the width direction of the paper. The camshaft 3 also has a cam surface 7a on the outer periphery of both end surfaces.
The inner ring of the cam 7 provided with 7b is fixed, and the outer ring of the cam 7 is fitted and fixed to the circular boss 6a of the paper holder 6. 8 inserts a part of the outer periphery into a hole provided in the upper plate 6b of the paper holder 6, so that the paper holder 6
It is a paper receiving roller that is supported by a bearing part, and is positioned so that its upper end is at the same height as the surface of the upper plate 6b, and a roller 9 that is in contact with the cam surface 7b is pivotally mounted on its outer peripheral part. It is worn. A tension spring 11 is stretched between the pivot of the roller 9 and a spring hook 10 provided on the side of the paper holder 6, and the tension spring 11 presses the roller 9 against the cam surface 7b, so that the cam 7 rotates together with the cam shaft 3. Accordingly, the paper receiving roller 8 is configured to reciprocate at a predetermined period in the direction shown by arrow A in the figure while expanding and contracting the tension spring 11. In addition, a horizontal roller arm 12 and a three-pronged cam lever 13 are rotatably supported in the bearing part 6c provided on the paper holder 6 so that they are in the same phase back and forth, and the roller arm A presser roller 14 pivotally attached to the free end of 12
is located directly above and in contact with the paper receiving roller 8. Further, a roller 15 pivotally attached to the lower end of the cam lever 13 is in contact with a cam surface 7a of the cam 7. A compression coil spring 16 is interposed between the roller arm 12 and the cam lever 13, which springs them so as to rotate them in the opposite direction. A bolt 17 with a knob is screwed into the cam lever 13 so that its tip is in contact with the cam lever 13 so that the rotation can be adjusted freely. A bolt 19 is screwed into the roller arm 12 to adjust the elastic force of the compression coil spring 16, and a nut 20 fixes the bolt 19 at the adjusted position. Further, 21 is a guide bolt which is screwed into the roller arm 12 and whose tip end is engaged with a hole in the cam lever 13, and a fixing nut 22 is screwed into this. A compression coil spring 23 is loaded into a hole in the paper holder 6 below the horizontal free end of the cam lever 13, and applies a rotational force to the cam lever 13 in the direction of pressing the roller 15 against the cam surface 7a.
is energized. On the other hand, at the tip of the roller arm 12, there is a presser plate 2 that is in contact with the upper plate 6b of the paper holder 6.
4 is integrally formed, and the paper designated by the reference numeral 25 is
It is sent out on the difference plate from the front side in the figure toward the back side of the paper, and is inserted between the open presser plate 24 and the upper plate 6b. Reference numeral 26 is a gauge that brings the side edges of the paper 25 into contact to align the register.

The operation of the conventional horizontal needle device configured as described above will be explained. When paper feeding is started and the camshaft 3 rotates, the cam 7 rotates, and the paper receiving roller 8 is rotated once per rotation of the cam 7 due to the action of the cam surface 7b.
rotates back and forth in the direction of arrow A. Also, cam lever 1
3 rotates back and forth while expanding and contracting the compression coil spring 23 at a rate of one reciprocation per rotation of the cam 7 due to the action of the cam surface 7a, and the bolt 17 is brought into contact with the cam lever 13 by the elastic force of the compression coil spring 16. The octopus arm 12 also swings together. Therefore, the presser roller 14 moves up and down so as to be in contact with and away from the paper receiving roller 8. and presser roller 1
4 is rising and the presser plate 24 and the upper plate 6b are open, the paper 25 is fed onto the insert plate and inserted between the presser plate 24 and the upper plate 6b, and at the same time the presser roller 14 falls, and the paper receiving roller 8 rotates counterclockwise in the figure, so the paper 25 is held against both rollers 1.
4 and 8 and moves to the left in the figure, and the edge is brought into contact with the gauge 26 to align the register. Prior to this, the paper 25 is aligned in the vertical direction by bringing the front end into contact with the front cover. Next time presser roller 1
When the paper 25 rises, the paper 25 is caught in the swing and carried away to the printing device, and the next paper is fed in and the above operation is repeated.

The horizontal needle device 5 that operates in this manner may be in an activated state or in an inactive state. In other words, when the sheets 25 that have been printed on the front side with the registration aligned through the above operation are stacked up at the paper ejection section, and then turned over and printed on the back side, the side edges that serve as the reference for registration are Since the edge is on the opposite side, the horizontal needle device 5 on the left side in the traveling direction of the paper 25 shown in the figure is made inactive, and the horizontal needle device 5 on the right side (not shown) is activated. This is generally referred to as switching from a pulling needle to a stabbing needle, and when making this switch, when the presser roller 14 is in the lowered position, the nut 18 is loosened and the bolt 17 is tightened, so that the roller arm 12 engages the compression coil spring 16. Rotate counterclockwise while compressing, presser roller 1
4 rises away from the paper receiving roller 8. After this, the bolt 17 is fixed by tightening the nut 18. As a result, even if the cam 7 rotates, the presser roller 14 only moves up and down in the raised position, and does not grip the paper 25, resulting in a non-operating state. Then, the cross needle device on the opposite side is changed from the non-operating state to the operating state by the above-mentioned reverse operation.

As described above, in the conventional horizontal needle device, each time when switching between the pull needle and the thrust needle, the nut 18 must be loosened with a spanner, the bolt 13 tightened or loosened, and then the nut 18 must be tightened. Therefore, it is not only troublesome to work, but also dangerous to work while rotating, especially in models where the horizontal needle device is located in a recessed position, which is extremely dangerous and has poor workability. Also, since tools are required,
Tools were easy to get lost and there were times when I couldn't get to the emergency spot in time.

[Summary of the idea]

The present invention was developed in view of the above points, and involves drilling a pair of deep and shallow pin holes at different phases on the same circumference in the end face of a holder provided on the support member side that supports the roller arm for the presser roller. By inserting the short shaft supported by the holder so that the pin protruding from the handle engages with either of the pair of pin holes, the roller arm is swung by the action of the tapered surface at the tip of the short shaft. By moving the presser roller to separate it from the paper receiving roller, it is possible to easily switch between the operating state and the non-operating state without using tools, reducing labor and improving safety. The present invention provides an improved horizontal needle device for a sheet-fed printing press. Embodiments of the present invention will be described in detail below with reference to the drawings.

〔Example〕

2 to 7 show an embodiment of the horizontal needle device according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a sectional view BB in FIG. 2, and FIG. 4 is a CC sectional view in FIG. 2. cross section,
Figure 5 is a sectional view of DD in Figure 2, Figure 6 is a sectional view of Figure 2.
The EE sectional view and FIG. 7 are side views near the short axis for explaining the switching operation. In these figures,
Between the left and right machine frames 31, there is a coupling ring 3.
2, a cam shaft 33 that is connected to the driving side shaft and rotates;
is mounted on a shaft, and directly above this camshaft 33,
A corner stay 34 is supported with both ends fixed to the frame 31. A pair of horizontal needle devices, generally designated by the reference numeral 35, are formed completely symmetrically to each other, and are supported by a cam shaft 33 and a square stay 34 in close proximity to the left and right frames 31, respectively. The paper holder 36 of the horizontal needle device 35 has a main body 36a that is in the shape of an inverted L when viewed from the side, and an upper plate 36b that is shaped like a rectangular frame when viewed from above.
The upper plate 36b is integrated with the main body 36a by bolting, and is fitted onto the square stay 34. In addition, the camshaft 33 has
Cam surface 37 consisting of peaks and valleys on the outer periphery of both end faces
The inner ring of the cam 37, which is provided with a and 37b, is fixed, and the outer ring of the cam 37 is fitted and fixed to a circular boss formed on the main body 36a of the paper holder 36. 38 is a part of the outer periphery of the upper plate 3 of the paper holder 36.
The paper receiving roller is inserted into a hole provided in the paper receiving roller 6b and is pivotally supported by the bearing part of the paper receiving stand 36, and is positioned so that its upper end is at the same height as the surface of the upper plate 36b, A roller 39 that contacts the cam surface 37b is pivotally attached to the portion. Between the pivot of the roller 39 and the spring catch 40 protruding from the main body 36a of the paper receiving stand 36, there is a tension spring that applies a rotational force to the paper receiving roller 38 in the direction of pressing the roller 39 against the cam surface 37b. 41 is stretched, and as the cam 37 rotates together with the cam shaft 33, the paper receiving roller 38
is configured to reciprocate at a predetermined period as shown by arrow F in the figure while expanding and contracting the tension spring 41. Further, a horizontal roller arm 42 and a three-pronged cam lever 43 are rotatably supported on a bearing portion 36c provided on the paper holder 36, overlapping each other so as to be in the same phase in the front and back directions. A presser roller 44 pivotally attached to the free end of the roller arm 42 is located directly above and in contact with the paper receiving roller 38. Further, a roller 45 pivotally attached to the lower end of the cam lever 43 is in contact with a cam surface 37a of the cam 37. A compression coil spring 46 is interposed between the roller arm 42 and the cam lever 43, and the compression coil spring 46 resiliently rotates them in opposite directions. A bolt 47 with a knob for regulating the rotation is screwed into the cam lever 43 with its tip in contact with the cam lever 43 so that the rotation can be adjusted freely, and a nut 48 that fixes the rotation at the adjusted rotation position is screwed into the bolt 47. A bolt 49 is screwed into the roller arm 42 and adjusts the elastic force of the compression coil spring 46, and a nut 50 fixes the bolt 49 at the adjusted position. Reference numeral 51 denotes a guide bolt which is screwed into the roller arm 42 and whose tip end is engaged with a hole in the cam lever 43, and a fixing nut 52 is screwed into this. And the cam lever 43
A compression coil spring 53 is installed in a hole in the paper holder 36 below the horizontal free end of the cam lever 43, and applies a rotational force to the cam lever 43 in the direction of pressing the roller 45 against the cam surface 37a. On the other hand, the tip of the roller arm 42 is integrally formed with a presser plate 54 that is in contact with the upper plate 36b of the paper holder 36, and the paper indicated by reference numeral 55 is moved from the bottom to the top in FIG. It is inserted between the presser plate 54 and the upper plate 36b, which have an open end with a slanted tip. Reference numeral 56 is a gauge that brings the side edges of the paper 55 into contact to align the register.

A block 57 formed in the shape of a rectangular parallelepiped is movably fixed to a portion of the corner stay 34 that supports the paper holder 36 near the frame 31 with a bolt 58 with a knob. Another block 59 is fixed with a bolt 60 with a knob so as to be movably adjustable together with the paper receiving plate 36. When the size of the paper 55 changes, the bolts 58 and 60 are loosened and both blocks 57 and 59 are moved along the corner stay 34 together with the entire horizontal stitching device 35.
Fine adjustment device 61 with left and right screws connected to each other.
After fine adjustment is made, bolts 58 and 60 are tightened to fix the position.

The holder indicated by the reference numeral 62 is a rectangular parallelepiped-shaped holder, which is fixed to the block 57 with a bolt 63, and a short shaft 65 equipped with a ring-shaped handle 64 slides into the shaft hole provided in the holder. It is pivoted for free movement. This short shaft 65 has its tip facing near the base end of the swingable roller arm 42, and its axis height is approximately equal to the upper surface of the roller arm 42 when the presser roller 44 is lowered. The height is set so that they are on the same plane. A deep hole 66 and a shallow hole 6 are formed on the surface of the holder 62 facing the handle 64.
7 are bored on the same circumference with a 180° phase difference, and the handle 64 has a protruding pin 68 that is selectively inserted into either hole 66 or 67 by rotation of the handle 64. There is. A tapered surface 65a is formed at the tip of the short shaft 65, and when the pin 68 is inserted and pushed into the deep hole 66 as shown in FIG. 7a, the roller arm 42 is moved by the action of the tapered surface 65a. The presser roller 44 is moved away from the paper receiving roller 38 by swinging, and the horizontal needle device 35 is placed in a non-operating state. Also, when pushing the pin 68 while inserting it into the shallow hole 67 as shown in FIG. 7b, the tip of the short shaft 65 does not reach the roller arm 32.
The horizontal needle device 35 continues to operate without hindering the swinging of the roller arm 42. Note that the pin 68 is connected to the hole 6.
It is preferable to use a spring pin so that it will not easily come off when inserted into the holes 6 and 67.

The operation of the horizontal needle device configured as above will be explained. First, prior to printing work, the horizontal needle device is positioned according to the paper size. In this case, loosen the bolts 58 and 60, move both blocks 57 and 59 together with the entire horizontal needle device 35 along the square stay 34, and after making fine adjustments with the fine adjustment device 61, the bolt 5
8 and 60 to position and fix the entire horizontal needle device 35. After preparing in this way, when paper feeding is started, the cam 37 rotates together with the cam shaft 33, and the action of the cam surface 37b causes the cam 37 to rotate at a rate of one rotation per rotation.
The paper receiving roller 38 reciprocates in the direction of arrow F due to the reciprocation. Further, the cam lever 43 rotates back and forth while expanding and contracting the compression coil spring 53 at a rate of one reciprocation per rotation of the cam 37 due to the action of the cam surface 37a, and the elastic force of the compression coil spring 46 causes the bolt 47 to be attached to the cam lever 43. The roller arms 42 brought into contact also swing together. Therefore, the press roller 44 moves up and down so that it comes into contact with and separates from the paper receiving roller 38. Then, when the presser roller 44 is rising and the presser plate 54 and the upper plate 36b are open, the paper 55 is fed onto the insert plate and the presser plate 5
4 and the upper plate 36b, the presser roller 44 descends and the paper receiving roller 38 rotates counterclockwise in FIG.
4, 38 and moves to the left in FIG. 2, and the end edge is brought into contact with the gauge 56 to align the register.
Prior to this, the paper 55 is aligned in the vertical direction by bringing the front end into contact with the front cover. Then, the next time the presser roller 44 rises, the paper 55 is held in its swing and carried away to the printing device, and the next paper is fed in and the above operation is repeated.

When printing on the back side of paper that has been printed in this way, the sheets 55 stacked up in the paper output section after printing are turned over and moved to the paper feed section, and fed one by one. Paper and print on the back side. In this case, since the edge of the paper, which is the reference for registration by the horizontal registration device 35, is on the opposite side from that in the case of printing on the front side, it is necessary to switch from so-called pulling needles to pricking needles. Therefore, when the handle 64 of the horizontal needle device 35 in use as shown in the figure is grasped and pulled to remove the pin 68 that is engaged with the shallow hole 67, the handle 64 is rotated 180 degrees. It faces the hole 66 . Then, when the pin 68 is inserted into the deep hole 66 and the handle 64 is pushed as hard as possible, the tapered surface 65a of the short shaft 65 pushes down the base of the roller arm 42, as shown in FIG.
2 swings, and the presser roller 44 rises away from the paper receiving roller 38 to become inactive. Next, pull and rotate the handle 64 of the horizontal needle device 35 on the opposite side, insert the pin 68 from the deep hole 66 to the shallow hole 67, and press the handle 64.
5 stops before reaching the roller arm 42, the presser roller 44 is lowered by the swinging of the roller arm 42 and comes into pressure contact with the paper presser roller 38, and the transverse stitching device 35 is activated. In this way, it is possible to switch between the pulling needle and the poking needle simply by pushing, pulling and rotating the handle 64.

[Effect of idea]

As is clear from the above explanation, according to the present invention, a pair of deep and shallow pin holes are bored in the end face of the holder provided on the support member side that supports the roller arm for the presser roller in the horizontal needle device of a sheet-fed printing press. By inserting the short shaft supported by the holder so that the pin protruding from the handle engages with either of the pair of pin holes, the roller arm is swung by the action of the tapered surface at the tip of the short shaft. By moving the presser roller to separate it from the paper receiving roller,
Switching between the operating and non-operating states of the horizontal needle device can be easily and quickly carried out by grasping the handle, pushing, pulling and rotating without using any tools, improving work efficiency and reducing labor. In addition, even in models equipped with a horizontal needle device in a recessed location, switching work becomes easier and work efficiency is improved. Furthermore, even if the switching operation is performed during operation, it is not dangerous and safety is improved.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional horizontal needle device for a sheet-fed printing press, and FIGS. 2 to 7 show an embodiment of the horizontal needle device for a sheet-fed printing press according to the present invention, and FIG. 2 is a plan view thereof. Figure 3 is a BB sectional view of Figure 2, Figure 4 is a CC sectional view of Figure 2, Figure 5 is a DD sectional view of Figure 2, Figure 6 is an EE sectional view of Figure 2, FIG. 7 is a side view of the vicinity of the short axis for explaining the switching operation. 35...Horizontal needle device, 36...Paper holder, 38...
... Paper receiving roller, 42 ... Roller arm, 43 ... Cam lever, 44 ... Presser roller, 62 ... Holder,
64...Handle, 65...Short shaft, 65a...Tapered surface, 66...Deep hole, 67...Shallow hole, 68
……pin.

Claims (1)

[Claims for Utility Model Registration] A paper receiving roller 38 that reciprocates at a predetermined angle;
A roller arm 42 is pivotally supported on the side of the support member that supports the paper receiving roller and swings at a predetermined period; In a horizontal needle device equipped with a presser roller 44 that moves up and down so as to approach and separate, the roller arm 42 is held by a holder 62 on the supporting member side with its tip facing the base of the roller arm 42.
A handle 64 supported so as to be able to move forward and backward in the far and near direction.
a pair of deep and shallow pin holes 66 and 67 bored out of phase on the same circumference in the end face of the holder 62; a pin 68 selectively inserted into the pin hole;
By inserting the pin 68 into the deep pin hole 66 and pushing the short shaft at the tip of the roller arm 42,
a tapered surface 65 that engages with the base of the roller arm 42 to swing the roller arm 42 in a direction that raises the presser roller 44;
A horizontal needle device for a sheet-fed printing press, characterized in that it is provided with a.