SU1689977A1 - Set-up to make data tablets - Google Patents

Abstract

The invention relates to automation and computing and can be used in the manufacture of tablets for input devices and reading graphic information. The purpose of the invention is to improve the accuracy of the grid of the tablet. The goal is achieved by the implementation in the tablet manufacturing device for reading graphic information comprising a base for positioning the substrate of the tablet, guide conductors and tension nodes of the conductors fixed in pairs on each of the lateral sides of the base, and nodes adjusting the mounting height of the substrate, each of the guide conductors in in the form of a set parallel to the replaceable rectangular bars x high-precision cylinders whose diameter is equal to the step of the grid coordinate of the tablet, fixed from and constituting along the contact lines of adjacent high-precision cylindrical cavities for laying conductors, the axes laying direction of the longitudinal conductors are shifted relative to the axes laying direction of the transverse direction by more than half the sum of the thicknesses of the lower and upper rows of conductors, as well as the nodes Adjusting the mounting height of the substrate are located in holes made in the lower part of the base plane. 4 il.

Description

The invention relates to automation and computing and can be used in the manufacture of tablets for input devices and read graphic information.

The purpose of the invention is to improve the accuracy of the step of the grid coordinate of the tablet.

Figure 1 shows the proposed device, bottom view; figure 2 - section aa in figure 1; on fig.Z - section BB in figure 1; figure 4 - view In figure 2.

The device consists of a base 1, on the side surfaces of which are located the guide conductors of the longitudinal 2, 3 and transverse 4, 5 directions and the tension nodes of the conductors of the longitudinal 6, 7 and transverse 8, 9 directions installed behind the respective guides with the possibility of moving along horizontal guides 10-13 with screws 14 with a flywheel 15, and nodes 16 for adjusting the mounting height of the substrate.

Each of the guides 2-5 is made in the form of 17 high-precision sets lying on replaceable rectangular bars x17

00

oh oh

VI VI

the cylinders 18 fixed from vertical movement by the plate 19 inserted into the groove of the cylinder 18,

The nodes 6-9 of the tensioning of the conductors are also made in the form of interchangeable rectangular bars 20 with fastening pins 21.

The height adjustment unit 16 of the substrate consists of a flywheel 22 rigidly connected to a screw 23 that moves in the nut 24. The latter is an integral connection with the plate 25, with which the node 16 is fixed in the holes of the base 1 of the device. The screw 23 ends with a pin 26 mounted on its neck with the help of pins 27. The supporting planes of the 28 are supplied with gaskets 28 with supporting planes 29 of an elastic material. The required position of the screw 23 is fixed by the lock nut 30, Figure 4 shows the end 31 of the coordinate grid conductor.

In the guides 2-5, an important point is the fixation of the possible movement in the vertical plane of the high-precision cylinders 18, since this causes a change in the grid pitch of the coordinate lines t equal to the diameter of the cylinder. This shiksatsu can be performed with different results, for example, installing a plash 19 in the grooves of the cylinder 18 with the pressing of the plates 19 and the replaceable part of the bars 17 of the screw m (as shown in figure 2); installing grooves of steel wire 18 into the grooves with a load for tension; clamping the cylinders 18 on both sides to the plate 17 for the ledges below the center line with the L-shaped clamps; the formation of a bald spot on the cylinder 18 (necessarily of the same size), the installation of cylinders on them on the surface of the plate 17 and fixation of the position by means of a constant “;” EE or electromagnets, etc.

A tablet for reading a graphic display on the inventive device of which is read as follows.

With its base, the tablet substrate (not shown) is installed on the node 16 for adjusting the substrate installation directly to its reference planes 29. By turning the flywheel 22 with screw 23 in the nut 54, the height of the upper plane of the tablet foot is set (the distance from the upper plane surface to the surface the origin of the grid of coordinate shmn).

The gap between the conductors of the longitudinal and transverse directions (lower and upper) is set at the expense of the height of the interchangeable parts of the guides 2-5 so that the axis of the lower conductors of the grid is at a distance from the axis of the upper conductors equal to

R + g

where R is the radius of the upper conductor,

PflM t

g is the bottom conductor radius, mm;

z is the gap between the conductors, mm.

As a result of such an installation, gaps are formed both between the conductors of the longitudinal and transverse directions, and between the conductors and the substrate.

The end of the conductor 31 is securely fastened to the first fastening pin 21 of the conductor tension assembly 8. Then, by carefully squeezing the conductor 31 through the guides 4 and 5 (directly between two adjacent cylinders 18), the conductor pulls through the fastening pin 21 of the conductor tensioning unit 9 and the adjacent pin with rotation of the direction by 180 °, i.e. again to node 8 tension of conductors, etc. to the last tire with the conductor fastening on the last pin 21. By rotating the flywheel 15 with the screw 14, the node 8, the tension of the conductors along the guides 10 moves in the horizontal direction, forming a gap between it and the guide 4. The operation is repeated by tensioning the node 9 to as long as all conductors take a strictly horizontal position and straightness. In the same way, the conductors of the longitudinal direction are tightened, forming a grid of coordinate tires.

A necessary condition for the device to operate is such a mutual arrangement of the tension nodes and guides, at which the distance a (between the lower part of the conductor 31 and the lower part of the collar of the fixing pin 21) in the same direction of laying the grid of coordinate tires is at least 2 mm. This is necessary to allow the conductor to be pulled from the guide to the conductor tension assembly.

After performing these operations, the base of the tablet is ready for pouring a hardening solution between the conductors of the longitudinal and transverse directions and between the conductors and the substrate.

The proposed device allows setting the step of the coordinate grid necessary for operation; the introduction of units for adjusting the height of the substrate installation makes it possible to manufacture tablets of different thickness (height); the device allows the manufacture of plates of various sizes, the dimensions of which fit between the nodes of the longitudinal and transverse directions.

The design of the tension nodes of the conductors and guide conductors makes it possible to arrange the upper and lower conductors of the grid with the necessary clearance, i.e. arrange the conductors so that the axes for laying the pair of the longitudinal direction of the conductors are offset in height relative to the axes of the pair of the transverse direction of the conductors by more than half the sum of the thicknesses of the lower and upper conductors; And the introduction of substrate height adjustment units into the device allows the bottom layer of conductors to be positioned with a gap relative to the substrate. Fulfillment of these conditions excludes friction of the conductors on the substrate and conductors against each other, which is necessary to increase the accuracy and dimensional stability of the grid of coordinate tires.

The proposed device allows to significantly reduce the technological cycle of manufacturing the tablet by reducing the tension operation of the grid of coordinate tires from 3-4 work shifts to 4-5 hours. This is achieved by fixing the wire only at two points - the beginning and the end of one grid direction and uniform

tensioning wires in one direction due to slipping of conductors along the neck of the fixing pins.

Claims (1)

Invention Formula Tablet making device for reading graphic information containing a base for placing the tablet substrate, guide conductors and tension nodes of the conductors fixed in pairs on each of the lateral sides of the base, and mounting height adjustment nodes of the substrate, differing in that grid pitch, each of the guide conductors is made as a set of parallel high-precision cylinders lying on interchangeable rectangular bars, the diameter of which is equal to the step of the tablet grid, fixed against movement and forming along the lines of contact of adjacent high-precision cylinders of the recess for the laying of conductors, and the axis of laying of the conductors of the longitudinal direction are displaced with respect to the axes of laying the transverse direction of conductors by more than half the sum of the thicknesses of the lower and upper rows of conductors, and the units for adjusting the substrate mounting height are located in holes made in the lower part of the base plane. 1688977 5-6 25 2 & 26 Fig.Z Type B is