JPH0530623B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a printing device for a deformed bottle whose printing surface has a plurality of flat surfaces.

(Prior art and its problems) A conventional bottle printing device consists of a bottle holding mechanism that statically holds the bottle, a horizontally stretched screen that descends horizontally from above the bottle, and a screen surface that descends. Consisting of a horizontally sliding squeegee, the bottle holding mechanism holds the bottle with the printed side facing up, and a screen impregnated with ink is brought into contact with the printed side.
This is a mechanism that prints by running a squeegee across the screen.

In such a mechanism, one step is required for each printing plane, where one step is one sliding of the squeegee on the screen. Therefore, in order to print continuous characters, figures, etc. over two planes, two steps are required, and the position of the bottle body must be changed for each step.

It is almost impossible to print a part of characters, figures, etc. on the ridgeline where two planes meet. This is because it is difficult to avoid printing misalignment due to changing the position of the bottle.

(Objective of the Invention) The present invention provides a printing device that can print continuous characters, figures, etc. on two adjacent planes including ridge lines corresponding to fold lines generated by bending one plane in one process. For the purpose of providing.

(Means for Solving the Problem) The present invention includes a horizontally suspended screen 10 that can be raised and lowered freely and remains stationary at a lowered printing position;
A squeegee that is located on the top side of the screen and can be raised and lowered; a squeegee sliding mechanism that slides the squeegee in one direction on the top surface of the screen; a rotating shaft 21 whose axis is directed in a direction perpendicular to the sliding direction of the squeegee and faces the lower surface of the screen lowered to the printing position; Swinging arm 22 extending below the screen from the rotation axis
and the first one on the printing surface side of the bottle carried by the swinging arm.
It is composed of a bottle receiver 23 that holds the bottle by aligning the ridge line Z where two planes, the plane X and the second plane Y, are in contact with the axis of the rotation shaft, and further includes a squeegee slide between the rotation shaft and the rotation shaft. Interlocking cam means is provided between the swinging mechanism and the swinging arm to swing the swinging arm so as to bring the bottom surface of the screen into contact with the bottom surface of the screen in the order of the first plane, the ridge line, and the second plane. The configuration includes the following.

(Function) In conjunction with the sliding of the squeegee, the rotating shaft of the bottle body holding mechanism rotates, and the bottle body held in the bottle receiver is swung around its ridgeline, and the 1 plane -
By contacting the screen in the order of the ridge line and the second plane, characters and figures are continuously printed across the first plane, the ridge line, and the second plane.

(Example) The present invention will be described below using a hexagonal deformed bottle shown in FIGS. 10 and 11 as an example.

For convenience of explanation, one adjacent plane on one side of the bottle (left side in the figure) is a printing plane X as the first plane, and the other plane (right side in the figure) is a printing plane Y as a second plane. The area along the corner of the ridge line where the printing planes X and Y touch is defined as a ridge area Z. Here, a ridgeline corresponds to a polygonal line created when one plane is bent, but a ridge area Z that includes this ridgeline, such as a glass bottle, etc.
microscopically, it has a slightly curved surface.

In FIG. 1, 10 is a screen, which extends long in the front-back direction of the drawing, and both ends of the screen 10 are supported horizontally by arms 12 of a screen holder 11. This screen 10 is suspended horizontally and is configured to be vertically movable.

The squeegee 13 is held by a squeegee holder 14, descends onto the screen 10, and slides on the upper surface of the screen in one direction.

This sliding is performed by a squeegee sliding mechanism (not shown).

During printing, the screen 10 and squeegee 13 are lowered to a position where the screen 10 contacts the object to be printed. The drawing shows the standby state before printing.

The screen 10, squeegee 13, and squeegee sliding mechanism described above are well-known mechanisms.

Reference numeral 20 denotes a bottle holding mechanism that holds the bottle that is the object of printing.

This bottle holding mechanism 20 has an axis oriented in a direction perpendicular to the sliding direction of the squeegee 13, and a rotating shaft 21 supported horizontally so as to face the lower surface of the screen 10 lowered to the printing position. A swinging arm 22 that hangs down from one end of the moving shaft 21 and extends to face the lower surface of the screen 10;
2 and the first plane X and the second plane on the printing surface side of the bottle body
A bottle receiver 2 that holds a bottle by aligning the ridgeline where the two planes touch with the plane Y with the axis of the rotation shaft 21.
3.

The rotation shaft 21 of the embodiment is rotatably supported by a support member 25 fixed to a pedestal 24, and the shaft center line L is set to correspond to the printing position where the screen 10 is lowered during printing.

This rotation shaft 21 rotates in conjunction with the sliding movement of the squeegee 13.

Note that the interlocking cam means for interlocking the rotating shaft 21 and the squeegee sliding mechanism will be described later.

In FIG. 2, the swinging arm 22 is fixed to the front end of the rotating shaft 21, that is, the end on the screen 10 side.

The swinging arm 22 has a groove 26 that is open on the front side and has a substantially U-shaped cross section. This groove is bored in a direction perpendicular to the shaft center line L, and the slide member 27 is inserted therein. A bottle receiver 2 is placed in front of the slide member 27.
There is a screw hole 28 for fixing 3. The screw holes 28 are arranged at equal intervals in a direction perpendicular to the shaft center line L.

An adjustment screw 29 for adjusting the sliding movement of the slide member 27 with respect to the groove 26 passes through the lower end wall of the groove 26 and is screwed into the slide member 27 from its lower end. This slide member 27 has an adjustment screw 2.
A female screw (not shown) corresponding to No. 9 is bored.
Therefore, the slide member 27 can be finely adjusted in the vertical direction by operating the adjustment screw 29.

In the figure, reference numeral 30 denotes a fixing screw for fixing the slide member 27 to the groove 26. The set screw 30 is screwed into the slide member 28 from the side surface of the groove 26 so as to come into contact with the slide member 28.

The bottle receiver 23 is removably fixed to a screw hole 28 on the front surface of a slide member 28 from the open side of the groove 26 of the swing arm 22. The bottle receiver 23 has a tray portion 31 for holding a bottle, which is an object to be printed, and the tray portion has a shape that matches the shape of the side surface of the bottle opposite to the printing surface.

In FIG. 3, the setting of the bottle body 32 into the dish portion 31 of the bottle receiver 23 is carried out on the first plane X, which is the printing plane, and on the second plane
The center line of a region Z (edge line) that adjoins the plane Y is made to coincide with the axis center line L, and the first plane X is brought into contact with the back surface of the lowered screen 10.

In the embodiment, a spring 33 is engaged with the lower end of the swinging arm 22 to bias the swinging arm 22 in the counterclockwise direction.
The stopper 34 is arranged so as to be in contact with the side surface of the swinging arm 22, so that the first plane X is in contact with the lower surface (back surface) of the screen 10.

The center line of the region Z, that is, the ridge line is the axis center line L.
In order to match this, first, the bottle receiver 23 is fixed in an appropriate screw hole 28 of the slide member 27, and then the slide member 27 is slightly slid using the adjustment screw 29.

The position of the slide member 27 determined in this way is fixed with a set screw 30 from the side of the swing arm 22.

FIG. 3 shows the printing operation of the squeegee 13 and the bottle holding mechanism 20. The squeegee 13A is at the movement start position, the squeegee B is at the shaft center position, and the squeegee 13A is at the movement start position.
C is at the movement completion position.

The squeegee 13 moves in one direction in the order of A→B→C at a constant speed.

On the other hand, in conjunction with the movement of the squeegee 13, the bottle receiver 23 moves from a state in which the first plane X of the bottle body 32 is in contact with the screen 10 to a state in which the second plane Y is in contact with the screen 10, centering on the axis center line L. oscillate.

This swinging is performed when the squeegee 13 passes through the region Z.

If we look at this from area Z, area Z, which is a curved surface, is
In accordance with the movement of the contact point with the screen 10 due to swinging, the squeegee 13 always swings at such a speed that it is positioned on the contact point.

Next, the interlocking cam means for interlocking the rotating shaft 21 of the bottle holding mechanism 20 and the squeegee sliding mechanism will be explained.

This interlocking means is provided between the rotation shaft 21 and the squeegee sliding mechanism in response to the sliding of the squeegee 13.
The swinging arm 22 is swung so as to bring the bottom surface of the screen 10 into contact with the first plane X, the ridgeline Z, and the second plane Y of the bottle body in this order.

In FIG. 2, a gear 40 is coaxially attached to the other end of the rotating shaft 21, and a rack gear 41 placed horizontally from below meshes with this gear 40.
The rack gear 41 is supported by a rod 42 vertically attached to its lower surface so as to be slidable in the longitudinal direction.

This rod 42 is loosely fitted into one end of a lever 44 whose center is pivotally connected to a machine base 43, and the other end of the lever 44 is connected to a slide plate 45 placed parallel to the rack gear 41. It is fitted into a guide 46 fixed to the stand 43.

Above this slide plate 45 is a hook lever 47 parallel to the slide plate.

The foot lever 47 is connected to a liner 49 fitted onto a shaft 46 parallel to the foot lever. The squeegee 13 is also connected to the liner 49 so as to slide at the same time.

The liner 49 is driven to run by a drive means (not shown).

Therefore, as the liner 49 travels, the hook lever 47 and the squeegee 13 move simultaneously. The foot lever 47 and the parallel slide plate 45 are connected by a connecting rod 50 in a parallel link manner.

In FIG. 4, the connecting rod 50 has a long hole 51 at its center, into which a pin 53 from a support 52 fixed to the machine base 43 is inserted and supported.

The foot lever 47 and the connecting rod are connected by fitting a pin 54 protruding from the connecting rod 50 into a long hole 55 formed in the foot lever 47 in the longitudinal direction. On the other hand,
The connection between the slide plate 45 and the connecting rod 50 is the connecting rod 5.
A pin 57 protruding from the slide plate 45 is inserted into a U-shaped hole 56 bored at the lower end of the slide plate 45.

A hook 60 with a flat upper surface is protruded from the hook lever 47 so as to intersect with the connecting rod 50.

On the other hand, a cam plate 70 is provided at the end of the connecting rod 50 on the side of the hook lever 47, which can come into contact with the side edge of the hook 60, and can ride on the flat surface 61 of the hook 60 while making contact.

The cam plate 70 has a U-shaped lower side edge that engages with the hook 60.

Next, the relationship between the hook 60 and the cam plate 70 will be explained.

As shown by the solid line in FIG. 3, when the first plane X of the bottle body 32 is in contact with the screen 10,
As shown by the solid line in FIG. 4, the hook 60 and the cam plate 70 are located apart from the cam plate 70 in the right direction in the drawing.

The state shown by the solid line in FIGS. 3 and 4 is the state before printing starts. Note that the screen 10 and squeegee 13 in FIG. 3 are also in a state in which the bottle body 32 has been set in the dish portion 31 of the bottle receiver 23 and then lowered.

This state before printing starts is maintained by a spring 33 that pulls the swinging arm 22 counterclockwise and a stopper 34 that touches the side of the swinging arm 22.

Instead of the spring 33, a spring 59 that pulls the swinging arm 22 counterclockwise may be engaged with the rack gear 41 as shown in FIG. 2. Of course, spring 3
3 and the spring 59 may be used together.

Alternatively, as shown in FIG. 4, a long hole 55 is formed so that when the foot lever 47 is fully extended to the left, the pin 54 of the connecting rod 50 is restricted by the left edge of the long hole 55 of the foot lever 47. It's okay.

In the embodiment, the spring 33, the stopper 34, and the spring 5
9 and a means for regulating the pin 54 with a long hole 55 are used together.

The start of printing begins with the liner 49 running to the left in FIG.

When the liner 49 moves to the left, the squeegee 13 and the lever lever 47 connected thereto move in the same direction (to the left).

In FIGS. 3 and 4, the hook 60 does not come into contact with the cam plate 70 until the squeegee 13A finishes sliding on the printing plane It is set to .

When the hook 60 approaches the cam plate 70 further, the cam plate 70 is pushed to the left, and the next moment it rides on the flat surface of the hook 60, and after riding on the flat surface 61.
The hook 60 slides on the top relative to the movement of the hook 60.

Therefore, after the hook 60 collides with the cam 70 until it rides on the cam 70, the connecting rod 50 rotates counterclockwise, and after the hook 60 rides on the cam 70, the connecting rod 50
remains rotated counterclockwise.

Now, when the connecting rod 50 rotates counterclockwise, the slide plate 45 is pulled to the right in accordance with the rotation, and the lever 44 rotates clockwise around the rotation axis. Pull Rakuya 41 to the left.

As a result, the rotation shaft 21 connected to the rack gear 41 via the gear 40 rotates, and the swing arm 22
and swing the bottle receiver 23 clockwise to the second plane Y.
comes into contact with the screen 10.

In FIG. 3, as the squeegee 13 passes near B, that is, the area Z, the bottle receiver 23 swings clockwise, so the area Z is printed. After the swing, the second plane Y remains in contact with the screen 10, so by moving the squeegee 13 directly to C, the Y plane is also printed.

When the squeegee 13 moves in the C direction and the Y surface is printed, the squeegee 13 and the screen 10 are retracted upward. This evacuation operation may be performed by any known means used in conventional printing presses.

(Effect) Since the present invention is configured as described above,
Characters, figures, etc. can be printed continuously in one process over two planes including ridge lines corresponding to fold lines generated by bending one plane.

[Brief explanation of the drawing]

The drawings show embodiments of the invention, and the first
The figure is a side view showing the positional relationship of the main components, Figure 2 is a perspective view, Figure 3 is a front view showing the operation of the bottle holding mechanism, Figure 4 is a front view showing the operation of the hook and cam plate, Fig. 5 is a front view of the bottle holding mechanism, Fig. 6 is a side view of the bottle holding mechanism, Fig. 7 is a plan view of the lever,
8 is a side view of the lever, FIG. 9 is a side view showing the state of connection between the lever and the rack gear, FIG. 10 is a front view of the bottle, and FIG. 11 is a bottom view of the bottle. 10...Screen, 13...Squeegee, 20
... Bottle body holding mechanism, 21 ... Rotating shaft, 22 ... Swinging arm, 23 ... Bottle receiver, 27 ... Slide member,
31... Disc part, 40... Gear, 41... Rack gear, 44... Lever, 45... Slide plate,
47...foot lever, 48...shaft, 49
... Liner, 50 ... Connecting rod, 60 ... Hook, 61 ... Plane, X ... First plane, Y ... Second plane
Plane, Z...area (edge line).

Claims (1)

[Scope of Claims] 1. A horizontally suspended screen that can be raised and lowered freely and rests at a lowered printing position; a squeegee that is located on the top side of the screen and that can be raised and lowered; It consists of a squeegee sliding mechanism that slides the squeegee in the direction, and a bottle holding mechanism that holds the bottle with the side surface of the bottle facing the lower surface of the screen, and the bottle holding mechanism is configured to move the squeegee in the sliding direction. a rotating shaft that faces the bottom of the screen that has been lowered to the printing position and whose axis is orthogonal to the printing position; a swinging arm that extends below the screen from the swinging shaft; a bottle holder that holds the bottle by aligning a ridgeline where two planes, a first plane and a second plane on the surface side, are in contact with the axis of the rotating shaft; An interlocking cam is provided between the sliding mechanism and swings the swinging arm so as to bring the bottom surface of the screen into contact with the bottom surface of the screen in the order of the first plane, the ridgeline, and the second plane, in accordance with the sliding movement of the squeegee. A printing device for a deformed bottle body, characterized in that it is provided with a means.