JPS58118259A - Cover of lateral register device in sheet printer - Google Patents

Abstract

PURPOSE:To improve wear characteristics and reduce a slip friction, by a method wherein a laminar plate of a multicrystal sintered product comprising a number of particles in micro-grinding grain such as diamond is firmly adhered to a carbide-tipped alloy base metal at the side of a base body of a cover of a lateral register device. CONSTITUTION:A laminar plate of a multicrystal sintered product, prepared by recrystallyizing a number of a particles in micro-grinding grain such as diamond or cubic boron nitride by adding a proper quantity of a catalyst metal such as cobalt at 1,200-1,500 deg.C on a carbide-tipped alloy base metal, is embedded in a side 4 of a base body 2 of a cover 1 of a lateral register so that the micro- grinding grain layer is exposed to an outer surface, and is secured by brazing to constitute the work such that the surface of the micro-grinding grain layer is positioned in flush with the side surface of the cover. This constitution permits the sufficient endurance against wear and display of performance for a long period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION This invention serves as a standard for positioning printing paper in the lateral direction perpendicular to the feeding direction of the printing paper in a single sheet printing press. This invention relates to the configuration of a horizontal register device.

In conventional sheet-fed printing presses, a hardened steel with a bell-shaped side surface that comes in contact with the paper was used as the support for the horizontal register device in sheet-fed printing presses. Due to the impact force when the edge is driven by the upper and lower rollers of the horizontal registration device and collides with the side of the paper, and the frictional force between the side of the paper and the edge of the paper during subsequent paper feeding. If the depth of the grooves exceeds the permissible limit, paper position regulation becomes problematic and the grooves have to be replaced with new ones in a short period of time. Ta.

In addition, in order to compensate for the above-mentioned drawbacks, products in which cemented carbide chips are embedded and fixed in the side surfaces of the chips are being used, but the occurrence of wear grooves on the surface of the chips is reduced and the chips are Lifespans have been increasing, but with sheet-fed printing presses whose printing speeds have recently increased, there is a growing demand for longer lifespans with even less wear and sliding friction. Ta.

The present invention has been made with the object of overcoming these drawbacks and providing a lateral register device having excellent wear resistance, low friction, and long life.

Hereinafter, the present invention will be specifically explained in detail with reference to the drawings.

The printing paper 14 is fed from the paper feed section (not shown) of the printing press by the horizontal registration device (also called horizontal needle) of the sheet-fed printing press shown in FIG. 1, and arrives at the first printing station.
When the paper 14 comes to a fixed position in the paper feeding direction perpendicular to the plane shown in the figure between the outer peripheral surfaces of the lower roller 11 and the upper roller 12 of the lateral registration device provided at the front of the stage, the paper 14 is moved at a constant high speed in advance. The lower roller 11, which had been rotated and lowered to a lower position, is instantly lifted together with its support base (not shown), and the outer circumferential surface of the lower roller 11 is sandwiched between the paper 14 and the outer circumferential surface of the upper roller 12. They start to push each other. At this time, the outer peripheral surface of the lower roller 11 is rotating at high speed, so a strong frictional force is generated between the paper 14 and the lower roller 11, causing the outer peripheral surface of the upper roller 12 to rotate in the same direction and rotate the paper 14. The paper 1 is rapidly driven in the direction of rotation of the outer peripheral surface on the conductive plate 13.
The end portion 15 of 4 abuts against the side surface 4 of the base body 2 of the support 1 of the lateral registration device.

As soon as the end 15 of the paper 14 hits the side surface 4, the lower roller 11 is lowered to a lower position along with its support (not shown), so the frictional force against the paper 14 is eliminated. The paper 14 stops at that position,
It is possible to position the paper in the lateral direction perpendicular to the paper feeding direction.

The first base 2 serves as a reference for horizontal positioning of this paper.
As the side surface 4 of the paper contacts and separates very frequently, in order to withstand this, a hardened steel or cemented carbide chip embedded in the side surface 4, which has been sharpened in the fall, has been used; Significant wear grooves are generated on the side surface 4 due to the impact force when the ends 15 of the sheet collide and the frictional force between the side surface 4 of the sheet 1 and the end 15 of the sheet 14 during subsequent sheet feeding. However, it was not possible to avoid the drawback that the position regulation of the paper 14 becomes inconvenient.

The present invention is intended to eliminate the above-mentioned drawbacks, and to explain its contents in detail, as shown in FIGS. A large number of so-called superabrasive grains of diamond or cubic boron nitride are deposited on a hard metal base under ultra-high pressure (atmospheric pressure) and high temperature (120°C).
A thin layer plate of a polycrystalline sintered body of superabrasive grains that has been recrystallized by adding an appropriate amount of catalytic metal (cobalt, etc.) at a temperature of 0°C to 1500°C) is heated so that the superabrasive grain layer of the sintered body is As if appearing on the outer surface,
It is embedded and fixed using brazing or welding metal so that the surface of the superabrasive grain layer is flush with the side surface.

Further, details of an embodiment of this configuration will be explained.

In the case shown in FIGS. 2 to 5, the thin layer plate 5 of the polycrystalline sintered body of superabrasive grains is a single one, and the side surface of the base 2 of the first one is
The superabrasive grain layer 6 is embedded so that the surface 6-1 thereof is exposed to the outer surface, and the cemented carbide 5-1 of the alloy is fixed to the right side 3 of the base body 2.

The surface 6-1 of the superabrasive grain layer 6 is configured to be flush with the side surface 4.

In the case shown in FIGS. 6 to 8, a plurality of thin laminate plates 7 made of polycrystalline sintered bodies of superabrasive grains are used, each of which is in close contact with the edge surface 8-2 of the laminate plate. The surface 8 of the superabrasive layer 8 such as
-1 is embedded in the side surface 4 of the base body 2 of the first part so as to be flush with the side face 4, and the cemented carbide 7-1 of the alloy is fixed to the right side 3 of the base body 2 of the first part.

In the case shown in FIGS. 9 to 11, a plurality of rectangular thin laminate plates 9 of polycrystalline sintered superabrasive grains are used.

These thin laminate plates 9 are embedded at intervals in the vertical direction perpendicular to the edge of the paper on the side surface of the sheet 1, and the cemented carbide alloy 9-1 of the alloy is embedded in the right side 3 of the substrate 2. is fixed to
The surface 10-1 of the superabrasive grain layer 10 is configured to be flush with the side surface 4.

12 to 14, a single rectangular thin layer plate 16 of a superabrasive polycrystalline sintered body is attached to the sheet 14, including the side surface 40 of the sheet 14, which is in contact with the edge 15 of the sheet 14. It is embedded and fixed to the side surface 4 of the part 1 in a horizontal direction parallel to the end part 15, so that the surface 17-1 of the superabrasive grain layer 17 on the outer surface thereof is flush with the side surface 4 of the part 1. It is configured.

15 to 17 include a plurality of rectangular thin-layer plates 18 made of superabrasive polycrystalline sintered bodies, including the side surface 40 of the sheet 14, which is in contact with the end 15 of the paper 14. The edge surfaces 19-2 of the horizontal ends of the respective thin laminates 18 are embedded in the side surface 4 of the paper 14 so that the edge surfaces 19-2 of the horizontal ends are in close contact with each other to form a single strip. The superabrasive grain layer 19 on the outer surface thereof has a surface 19-1 flush with the side surface 4 of the part 1.

The lateral register device in the sheet-fed printing press of the present invention is constructed as described above, and the superabrasive polycrystalline sintered body used therein has no directionality in hardness and is uniform. This is equivalent to the hardest value of diamond abrasive grains or cubic boron nitride abrasive grains, and these abrasive grains also have excellent abrasion resistance and impact resistance, respectively, so that the printing paper can easily pass through the horizontal registration device. The recent Even in sheet-fed printing machines where the paper repeatedly comes into contact with and leaves the contact at extremely high speeds, it can sufficiently withstand wear and exhibit its performance over a long period of time. For example, the lateral register device of the present invention has a service life that is 80 times longer than that of a conventional device using hardened steel.

Therefore, the accuracy of regulating the position of the paper in the lateral direction perpendicular to the paper feeding direction is increased, and the printing accuracy of the paper is greatly improved. Furthermore, as a result of the long life of the abutment, it is possible to minimize the interruption of work for replacing a worn abutment and the increase in cost for replacement, resulting in a significant cost reduction.

In addition, since the surface of the abrasive layer of the superabrasive polycrystalline sintered body used in the lateral registration device of the present invention is polished to an extremely smooth finish, the coefficient of friction against the edge of the paper is extremely small and the paper feed movement It has the advantage of making the process extremely smooth.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing the operation of a lateral register device in a sheet-fed printing press, Fig. 2 is a half-view of the lateral register device of the present invention, Fig. 3 is a front view, and Fig. 4 is a side view of the same. Fig. 5 is a plan view of a polycrystalline sintered thin layer plate of superabrasive grains, Fig. 6 is a plan view of the lateral register device of the present invention, Fig. 7 is a rotation front view, and Fig. 8 is a plan view of superabrasive grains. 9 is a plan view of the lateral register device of the present invention, FIG. 10 is a rotation front view, and FIG. 11 is a superabrasive polycrystalline sintered body. FIG. 12 is a plan view of the thin layer plate, FIG. 12 is a plan view including a partially broken surface of the lateral register device of the present invention, and FIG. 13 is a front view of the same. FIG. 14 is a plan view of a superabrasive polycrystalline sintered thin layer plate. Fig. 15 is a plan view including a partially broken surface of the lateral register device of the present invention, Fig. 16 is a rotational front view, and Fig. 17 is a plan view of a superabrasive polycrystalline sintered thin layer plate. shows. ■...Horizontal registration device in sheet-fed printing presses, 2...
Substrate of rotating tool, 4... Side surface of substrate 2 of rotating tool, 5... Polycrystalline sintered thin laminate plate of superabrasive grain, 5-1... Alloy of the same thin laminate plate, 6...・Superabrasive grain layer of the same polycrystalline sintered thin layer plate, 6-1
. . . Surface of the superabrasive grain layer, 7 . . . Polycrystalline sintered thin laminate of superabrasive grains, 7-1 . 8... Super abrasive grain layer of the same polycrystalline sintered thin layer plate, 8-1...
- Surface of the same superabrasive grain layer, 8-2... Edge surface of polycrystalline sintered thin laminate plate, 9... Polycrystalline sintered thin laminate plate of superabrasive grains. 9-1... Base metal of the same thin laminate, 10... Super abrasive grain layer of the same thin laminate, 10-1... Surface of the same super abrasive grain layer, 11...
Lower roller of the horizontal register device in a sheet-fed printing press, 12... Upper roller of the same horizontal register device, 13... Guide plate for printing paper. 14...Printing paper, 15...Edge of printing paper, 16
... Polycrystalline sintered thin layer plate of super abrasive grain, 16-1... Base metal of the same thin layer plate, 17... Super abrasive layer of the same thin layer plate, 17-
1... Surface of the superabrasive grain layer, 18... Polycrystalline sintered thin laminate plate of superabrasive grains, 18-1... Base metal of the same thin laminate plate, 19
. . . superabrasive grain layer of the same thin laminate, 19-1 . . . surface of the same superabrasive grain layer, 19-2 . . . edge surface of the horizontal end of the same laminate. Figure 1 Figure 2

Claims (1)

[Claims] In a lateral registration device of a single sheet printing press, the end of the paper is used as a reference for positioning the paper in the lateral direction perpendicular to the feeding direction of the printing paper. A polycrystalline sintered body of superabrasive grains, in which a large number of fine grains of superabrasive grains are sintered on the upper surface of the cemented carbide alloy under ultra-high pressure and high temperature with an appropriate amount of catalyst metal etc. A thin layer plate is embedded in the side surface of the sintered body and fixed using brazing or welding metal so that the superabrasive grain layer is exposed to the outer surface of the sintered body. Side 2 of the lateral registration device in a sheet-fed printing press according to claim 1, wherein the thin layer plate of the superabrasive polycrystalline sintered body is a single piece fixed to the side surface of the side 2. Right. 3. A plurality of thin layer plates of polycrystalline sintered bodies of superabrasive grains are in close contact with each other at their edge surfaces, and the surfaces of the superabrasive grain layers are on the same plane. A lateral register device in a sheet-fed printing press according to claim 1, wherein the lateral register device is fixed to a sheet-fed printing press. 4. Embed and fix a plurality of rectangular superabrasive polycrystalline sintered thin laminates at intervals in the vertical direction perpendicular to the edge of the paper on the corresponding side surface, and fix the sintered bodies. A support for a lateral register device in a sheet-fed printing press according to claim 1, wherein the surface of the superabrasive grain layer is flush with the side surface of the support. 5. Place a single rectangular thin layer plate of superabrasive polycrystalline sintered body in a horizontal band shape parallel to the edge of the paper, including the side surface that contacts the edge of the paper. A lateral alignment device for a sheet-fed printing press according to claim 1, wherein the superabrasive grain layer on the outer surface thereof is embedded in and fixed to the substrate so that the surface of the superabrasive layer on the outer surface thereof is flush with the side surface thereof. The hit. 6. A plurality of rectangular thin laminate plates of superabrasive polycrystalline sintered bodies are placed in a horizontal direction parallel to the edge of the paper, including the side surface that contacts the edge of the paper. The edge surfaces of the horizontal ends are embedded and fixed to the side surface of the object so that they form a single band shape, and the surface of the superabrasive layer on the outer surface of these layers is flush with the side surface of the object. A lateral register device for a sheet-fed printing press according to claim 1, which is constructed as follows. 7. A lateral registration device in a sheet-fed printing press according to any one of claims 1 to 6, wherein the polycrystalline sintered body of superabrasive grains is a polycrystalline sintered body of diamond abrasive grains. The hit. In the sheet-fed printing press according to any one of claims 1 to 6, the polycrystalline sintered body of 8 superabrasive grains is a polycrystalline sintered body of cubic boron nitride abrasive grains. The position of the registering device.