JPH0136796B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) This invention relates to an automatic turning device for calendars and other printed matter to be printed when printing calendars, other already bound papers, or synthetic resin sheets. It is something.

(Problems with the prior art) Conventionally, when printing a name such as a company name on a calendar, the calendar is usually already bound, so the operator has to manually align it while the printing machine is running. A method has been adopted in which printing is performed on the lower end of the calendar by turning each sheet one by one. However, this turning operation requires a great deal of skill, and requires a considerable amount of effort when done over a long period of time, resulting in accidents such as poorly printed products and injuries.

In order to deal with the above-mentioned difficulties, the applicant first developed a method and device for automatically transporting and turning printed materials in order to automate the entire printing process including turning operations (Patent Application No. 100318-1981, 1982). (filed on May 18th).

By the way, in the above-mentioned patent application, the arm robot and calendar scraper part were constructed separately in the turning device part, and the paper was suctioned by a suction pad in the turning head part. However, for the turning function, the arm robot and calendar scraper need not necessarily be constructed separately; they may be integrated, and the head portion could also be of a type other than the type that sucks the paper.

This invention was developed in view of the above circumstances.

(Means for Solving the Problems) The gist of the present invention is to install an arm robot adjacent to the paper to be printed, and this arm robot has a turning head section attached to the tip of an arm drive shaft. The arm driving shaft and the turning head section are configured to be automatically moved by a drive device, and the turning head section includes a rotatable turning pad, a paper holding section formed to hold the paper, and a paper holding section formed to hold the paper. It consists of a paper holding part that is freely movable in the front and rear directions.

(Function) After placing the paper to be printed at a predetermined position, the drive unit moves the armshaft section up, down, left and right, and at the predetermined position, the paper press section presses the paper and the turning pad section presses the paper. The paper is rotated while being pressed, and the paper is turned over while being held by the paper holding section.

(Example) The following will explain the embodiments shown in the drawings.

1 shows an arm robot used in the device of the present invention. This arm robot 1 is installed adjacent to the lower side edge of a calendar A to be printed, and generally includes a horizontal drive section 2, a vertical drive section 3, an arm drive section 4, and a turning head section 5.
It consists of

The horizontal drive unit 2 forms the base of the entire arm robot 1, and is composed of a horizontal drive motor 6 and a horizontal drive shaft 8 connected to the horizontal drive shaft 8 by a horizontal drive belt 7. A horizontal drive shaft 8 rotates, and a vertical drive section 3 disposed above the horizontal drive shaft 8 rotates.
The arm drive section 4 and the turning head section 5 are rotated in the direction of the arrow X in the figure using the horizontal drive shaft 8 as a branch.

The vertical drive section 3 is mounted on the upper end of the horizontal drive shaft 8, and the vertical drive lever 11 is turned over and extended in the direction of the head section 5 via a vertical drive motor 9 and a vertical drive cam 10 fixed to the vertical drive motor 9. It is supported by a vertical drive shaft 12 pivotally mounted in the middle. The operation of the vertical drive motor 9 causes the vertical drive cam 10 to rotate, and accordingly, the tip of the vertical drive lever 11 moves upward and downward using the vertical drive shaft 12 as a fulcrum, and is connected to the vertical drive lever 11. The arm driving section 4 and the turning head section 5 also rotate in the direction of arrow Y in the figure.

An arm drive section 4 is attached to the tip of the vertical drive lever 11. This arm drive unit 4 has an arm drive motor 13 disposed at its base end, and this arm drive motor 13 has an arm drive cam 14.
Arm drive lever 1 extending toward the tip via
5 is attached, and the tip of the arm drive lever 15 is connected to a pinion gear 16 of the arm drive gears. The arm drive gear part is the frame material 17
The pinion gear 16 is framed in the shape of an elongated rectangular parallelepiped frame, and the pinion gear 16 is sandwiched and engaged between upper and lower frame-shaped rack gears 18 and 19, as shown in FIG. The pinion gear 16 is guided by the slit 17a of a frame member 17 provided with a slit 17, and is movable in the axial direction. Further, the upper rack gear 18 is fixed to the frame member 17, and the lower rack gear 19 is movable in the axial direction, and a linear arm drive shaft 20 is fixed thereto. As the arm drive motor 13 operates, the pinion gear 16 connected thereto moves in the axial direction along the upper rack gear 18 that is in mesh with it, and the lower rack gear 19 that is also in mesh with it moves in the axial direction. Furthermore, the arm drive shaft 20 fixed to the lower rack gear 19 is also configured to move in the same direction and to be extendable and retractable.

A flipping head portion 5 is provided at the tip of the arm drive shaft 20. More specifically, as shown in FIGS. 4 to 7, an arm mount 21 is attached to the tip of the arm drive shaft 20,
A stepping motor 22 for driving the turning head is mounted on the arm mounting base 21. This stepping motor 22 has a main rotating part mounting part 2.
3 are connected to each other, and a flip-up pad mounting rod 24 facing diagonally downward is fixed to this main rotating part mounting portion 23.
An air cylinder 26 is attached to its tip via an air cylinder mount 25, and a flip pad 27 is further connected to this air cylinder 26. Further, a rectangular paper holding lower part 28 is fixed to the middle part of the turning pad mounting rod 24.

The turning pad 27 performs the action of turning over the paper A by rotating, and as shown in Fig. 8, it is made of an elastic material such as sponge, the lower surface is a slightly inclined surface, and the inside has a vertical A spring 27a is embedded, a contact piece 27b is provided at the upper end of the spring 27a, and the air cylinder 2
The contact piece 26a provided on the lower surface of the contact piece 6 comes into contact with the contact piece 26a. A rod 26b is also protruded from the lower surface of the air cylinder 26 and is movable downward by the operation of an electromagnetic cylinder. This air cylinder 26 is connected to a compressor (not shown) and a power source 30 via an electromagnetic valve 29, and is also connected to the power source via a micro switch 31 from the contact piece 26a. Then, if paper A is thick enough, turn pad 2
7 generates sufficient contact pressure, so paper A can be turned over. In this case, the contacts of the micro switch 31 are not connected to the power source 30 as shown in FIG.
is no longer working.

Furthermore, when the thickness of the paper to be printed becomes thinner, the turning pad 27 separates from the surface of the paper A and cannot perform the turning operation (Fig. 8B), but in this case, the air cylinder 2
6 contact piece 26a and contact point 27b of flip-up pad 27
When the microswitch 31 is released, the contacts of the microswitch 31 are connected and the electromagnetic valve 29 is activated. The actuation of the electromagnetic valve 29 causes the air cylinder 26 to operate, projecting the rod 26b downward, and pushing down the turning pad 27 to generate contact pressure with the surface of the paper to perform the turning operation.
Figure C).

An air cylinder 32 is attached to the upper part of the main rotating part attachment part 23, an air cylinder drive gear 33 is connected to this air cylinder 32, and a paper holding part 34 having a pinion gear 34a that meshes with this air cylinder drive gear 33 is provided. It is attached and forms a pair with the paper holding section 28 to form a paper holding section. Then, the air cylinder drive gear 3 is driven by the air cylinder 32.
3 moves in the axial direction (arrow M in the figure), the pinion gear 34a that meshes with this rotates, and the paper holding upper part 34 rotates upward and downward (arrow N in the figure), and the paper holding lower part 28 The calendar holder is configured to come into contact with and separate from the calendar. The turning pad 27 and the paper holding section are rotatable in a direction perpendicular to the axial direction by driving the stepping motor 22.

Separately from the stepping motor 22, a paper holding part 35 is attached to the side of the arm mount 21. This paper holding part 35 is installed with a required inclination. First, an air cylinder 36 connected to a compressor is installed, and the tip of an air cylinder drive lever 37 protruding from this air cylinder 36 is driven. A pinion gear 38 is attached, and a fixed rack gear 40 fixed to a fixed gear mounting portion 39 is disposed above the drive pinion gear 38 and meshes with the drive pinion gear 38. Also, the drive pinion gear 38
A drive gear 42 that moves in the axial direction with a pin 42a guided by a slit 41a bored in the drive gear mounting portion 41 is disposed at the lower part of the drive gear 42 and meshes with the drive pinion gear 38. A paper presser rod 43 is fixed to the tip,
The tip of the paper presser rod 43 is bent at a required angle so that it becomes substantially horizontal during use and can securely press the paper, and the bottom surface is notched. As the air cylinder 36 is driven, the air cylinder drive lever 37 moves in the axial direction, and the pinion gear 3
8 also moves, and the drive rack gear 42 that meshes with this pinion gear 38 also moves in the axial direction at the same time, and the paper presser 43 fixed to this moves in the axial direction (as shown in the figure). O direction).

A sheet separation air blowing section 44 that opens toward the distal end and is connected to the compressor is attached to the lower surface of the arm mounting base 21.

Figures 10 to 15 show a calendar A of the present invention.
This figure shows the manner in which the page is turned over.
When the calendar A is placed in a predetermined position, the horizontal drive motor 6 and the vertical drive motor 9 are driven to move it in the horizontal direction (X direction in the figure) and the vertical direction (Y direction in the figure), and the turning head of the tip part is moved. The portion 5 is set near one side edge of the printing position of the calendar A (usually one side edge of the lower end of the calendar).

After setting, the air cylinder 36 is separately driven as the printing press B is driven, and the paper presser rod 43 projects forward and presses the calendar A at a predetermined position. At the same time, air is blown out from the paper separation air blowing section 44 to prevent double turning of calendar A.
Separate the pages of calendar A (Figure 10).

Next, when a predetermined bus signal is applied to the stepping motor 22, the turning pad 27 rotates (in the direction of the arrow in the figure), presses the topmost paper, and begins to turn the paper by the pressing force and rotational force (Fig. 11). ).
In this case, the pressure of the paper turning pad 27 against the paper surface always needs to be above a certain level, so when the paper becomes thinner, the air cylinder 26 attached to the turning pad 27 is driven as described above (Fig. 8). Protrude the rod 26b downward and turn over the pad 2.
7 can be pushed down to increase the pressing force. In order to ensure smooth and reliable paper turning, the horizontal drive motor 6 is driven to move the entire arm horizontally, and the arm drive motor 13 is also driven to extend and retract the arm shaft 20 to move the turning pad 27 horizontally. , the paper turned over by the pressing force of the turning pad 27 is turned over by the turning pad 2
The paper was released from the pressing force at step 7 and abutted against the side surface of the turning pad 27, bending it into an inverted U shape (Fig. 12), and the lower end of the paper was lifted diagonally upwards (Fig. 13).
figure).

After that, the paper presser rod 43 is moved back to its original position, and at the same time, the paper holding upper part 34 is moved to the air cylinder 3.
2, the paper is rotated downward to the paper holding lower part 28, and the paper is held between the paper holding upper part 34 and the paper holding lower part 28 (FIG. 14). Next, when a predetermined reverse rotation pulse signal is applied to the stepping motor 22 while holding the paper, the turning pad 27 and the paper holding section rotate in the reverse direction, the paper is folded into an inverted U shape, and the paper holding upper part 34 is rotated. The paper is rotated upward to release it and the turning operation is completed (FIG. 15).

Note that this invention is not limited to calendar printing, but can also be used to print previously bound papers such as stationery, and is also applicable not only to paper but also to printing on synthetic resin sheets, for example. It can be used.

(Effects of the Invention) As described above, the present invention is capable of automatically performing printing of bound papers, such as printing names on calendars, by using an arm robot, which was conventionally done manually and required time and skill. As a result, the labor involved is greatly reduced, printing of uniform quality can be done in a short time without the need for manual skill at all, and accidents such as injuries can be prevented. This can greatly contribute to rationalization and labor savings. Moreover, it is configured so that all the flipping operations can be performed with one arm, so
It has a simple configuration that does not require any other auxiliary equipment, so its operation is smooth and less prone to failure, and its manufacturing cost is low.

[Brief explanation of drawings]

The drawings show an embodiment of the invention, and the first
The figure is a front view, Fig. 2 is a plan view, Fig. 3 is a partially exploded enlarged front view, Fig. 4 is a front view of the turning head, Fig. 5 is a plan view thereof, Fig. 6 is a rear view, and Figure 7 is a right side view of the same, Figure 8 is a partial vertical sectional view also showing the wiring of the mechanical pad part, Figure 9 is a schematic plan view showing the installation location of the arm robot, and Figures 10 to 15 are flipped over. FIG. 7 is a partial right side view showing the turning operation of the head portion. 1...Arm robot, 2...Horizontal drive section, 3
...Turning head part, 6...Horizontal drive motor,
7...Horizontal drive belt, 8...Horizontal drive shaft, 9...Vertical drive motor, 10...Vertical drive cam, 11...Vertical drive lever, 12...Vertical drive shaft, 13...Arm drive motor, 14
... Arm drive cam, 15 ... Arm drive lever, 16 ... Pinion gear, 17 ... Frame material, 1
8, 19...Rack gear, 20...Arm drive shaft, 21...Arm mounting base, 22...Stepping motor, 23...Main rotating part mounting portion, 24
...Turning pad mounting rod, 25...Air cylinder mounting base, 26...Air cylinder, 27...Turning pad, 28...Paper holding lower part, 29...Solenoid valve, 30...Power supply, 31...Micro switch , 32...Air cylinder, 33...Air cylinder drive gear, 34...Paper holding upper part,
35... Paper holding part, 36... Air cylinder,
37... Air cylinder drive lever, 38... Drive pinion gear, 39... Fixed gear mounting part, 4
0...Fixed rack gear, 41...Drive gear attachment part, 42...Driving rack gear, 43...Paper presser, 44...Air blowing part for paper separation, A...Calendar, B...Printing machine.

Claims (1)

[Claims] 1. In a turning device consisting of an arm robot installed adjacent to the paper to be printed, the arm robot has an arm driving shaft, a turning head attached to the tip of the arm, and a turning device that automatically operates the arm driving shaft and the turning head. The drive device includes a vertical drive motor and a horizontal drive motor to move the entire device vertically and horizontally;
It consists of an arm drive motor for extending and contracting the arm drive shaft in the axial direction, and a motor for driving the turning head section that rotates the turning head section at right angles to the axial direction. What is claimed is: 1. An automatic device for turning over printed matter, characterized by comprising a turning pad that rotates with a button, a paper holding section formed to hold paper, and a paper holding section that is movable in the front and rear directions.