JPH10217426A - Rotary screen textile printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily replace a rotary screen even by one person. SOLUTION: This textile printer comprises bearings 6 of a rotary screen 1 at a support to move the one to the other in the printer width direction to support the screen 1 to be inserted into or removed from the bearings 6. An extended end of a bar 10 extended substantially in the entire length in the screen 1 is supported to be inserted into or removed from a support member 19, and the bar 10 is vertically movably pivotally secured to a base 5 at a site extended out of the screen 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel rotary screen printing machine modified so that rotary screens can be easily replaced.

[0002]

2. Description of the Related Art In a rotary screen printing machine, a bar provided with a stopper for positioning a roller squeegee at a fixed position in the rotary screen is inserted through the rotary screen.

Conventionally, this bar extends through the inside of the bearing at one end of the rotary screen—the rotary screen—the bearing at the other end (see FIG. 7), and both ends thereof are substantially removable from the two bearings. Is joined to. In FIG. 7, the same reference numerals as those in FIGS. 1 to 3 indicate the same parts. In FIG. 7, reference numeral C denotes a connecting member for the bar 10, which is bolted to the bearing 6.

[0004] Such prior art connections at both ends of the bar have the following problems.

Prior to replacing the rotary screen, it is necessary to pull out the bar to one side of the rotary screen,
After replacement, it must be reinserted. In order to do this, the connection at both ends of the bar must be broken and reconnected each time.

[0006] Further, the bar is usually 2.5-4 m long and weighs 10-18 kg, and the demounting work involving the insertion and removal of the bar requires considerable labor. In order to avoid damage, it is necessary to insert and remove the bar so that it does not hit the rotary screen. For that purpose, workers are divided into both the operation side and the non-operation side of the printing machine,
Work must be performed by a total of two people, which requires a lot of labor and is not easy.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to make it possible for a rotary screen printing machine to easily replace a rotary screen by one person.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a rotary screen printing machine having the following configuration.

[0009] One end bearing and the other end bearing of the rotary screen are mounted on a support so that one can move with respect to the other in the width direction of the printing machine.
A bar extending substantially over the entire length of the rotary screen inside the rotary screen is detachably supported by these bearings, and its extending end is detachably supported by a support member. A rotary screen printing machine characterized by being supported on a printing machine base so as to be vertically rotatable at a portion extending outside the rotary screen.

Here, the width direction of the printing machine refers to the width direction of the cloth to be printed on the printing machine. This applies to the claims and the following description.

It is preferable that the rotary screen has one end and the other end formed as a narrowed or narrowed end ring. For the reason,
It will be described later.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

A plurality or one of the rotary screens 1, an endless belt 2, a printing cloth transport endless belt 2, a printing table 3, and a driving roller (not shown) for the endless belt 2 are arranged in parallel at a predetermined interval. Above, it may be installed to be inclined at a required angle in the width direction of the endless belt 2 or may be installed horizontally. That is, it does not matter whether the rotary screen printing machine is an inclined type or a horizontal type.

One end and the other end of the rotary screen 1 have a diameter smaller than the diameter of the screen 1, that is, a narrowed end ring 1 R. The bearings 6 and 6 on one end and the other end of the rotary screen 1 are arranged such that the other bearing, for example, the right bearing in FIG. 1 can move in the width direction of the printing press (the left-right direction in FIG. 1). 60 is equipped. More specifically, one bearing is fixedly supported on the support 60 and the other bearing is supported on the support 60 so as to be slidable in the width direction of the printing machine. The slidable bearing 6 is guided to move by a guide rail 61.
The bearings 6, 6 are supported by the support 60 in a cantilever manner in which the bearings 6, 6 protrude from the support 60 in the length direction of the belt 2.

In these bearings 6, 6, ferrules 7, 7 are rotatably supported around their axes, and the end rings 1R, 1R are fitted in the ferrules 7, 7 so that they can be inserted and removed. The rotary screen 1 is supported by bearings 6 and 6 so that insertion and removal are possible. At the mouth ends of the bases 7, 7, fin-shaped radially inward engaging projections 71 are formed, and at the mouth ends of the end rings 1 </ b> R, 1 </ b> R, fin-shaped radially outward engaging projections. 12 are formed. A plurality of engaging projections 71 and 12 are formed as shown in the figure. The engagement projections 71, 12
The engagement projections 71 and 12 on the other side are arranged to be engaged with each other while the engagement projections 71 and 12 on the one side are engaged.

The rotary screen 1 is configured such that one of the bearings 6 and 6 (in the illustrated example, the one on the right side in FIG. 1) is pulled rightward in FIG. Tensioned and rigidified. With this tension, the rotary screen 1 is integrated with the bases 7, 7,
Co-rotation with the bases 7, 7 is possible. The rotary screen 1 is rotated synchronously with the endless belt 2 as in the conventional case.

A bar 10 extends substantially the entire length inside the rotary screen 1. The extension end of the bar 10 terminates in the base 7 on the end side, and is removably supported by a support member 19 arranged at a fixed position inside the base 7. A slidable bearing is used for the bearing 6 on the extension end side of the bar 10. The support member 19 is attached to a bracket 19 a on the bearing 6.

Further, the bar 10 is a part extending outside the rotary screen 1 and is supported by a bracket 8 on the printing press machine base 5 by a pivot 9 so as to be vertically rotatable. Bar 10
Is connected to a clevis 15 at the tip of a plunger 14a of an air cylinder 14 provided on the printing press machine base 5 by a pivot 16 at a portion extending outside the rotary screen 1. The air cylinder 14 has an end opposite to the pivot 16 connected to a bracket 22 on the machine base 5 via the pivot 13.

The bar 10 can be provided with a member for mounting a stopper 20 for positioning the roller squeegee 11 in the rotary screen 1 at a fixed position. The stopper 20 extends in parallel with one axis of the rotary screen. The stopper 20 is a member 2 integrally connected to the bar 10.
1 and attached to the bar 10.

The bar 10 is a hollow type having a large number of perforations 10-1 in the peripheral wall, and also serves as a member for raining the washing water in the rotary screen 1. A washing water hose 18 is connected to the starting end of the hollow bar by a joint 17.

The state in which the end rings 1R, 1R are fitted to the bases 7, 7, that is, the state in which the rotary screen 1 is supported by the bearings 6, 6 is shown by a solid line in FIG.

In order to remove or remove the end rings 1R, 1R from the bases 7, 7, in other words, to remove or remove the rotary screen 1 from the bearings 6, 6, the axial tension of the rotary screen 1 is released. Then, the rotary screen 1 is manually rotated with respect to the bases 7 and 7 until the engagement between the engaging projections 12 and 71 is disengaged, and then the bearing 6 on the right side of FIG. Move to
The purpose is achieved by moving the rotary screen 1 to the right side of FIG. 1 with respect to the opposite base 7.

When the end rings 1R, 1R are removed from the bases 7, 7, the rotary screen 1 is released from the engagement with the bearings 6, 6, and becomes free.

In the rotary screen 1 with the end rings 1R, 1R removed from the bases 7, 7, the end rings 1R, 1R are fitted into the bases 7, 7 so that the engaging projections 71, 12 do not face each other. When the rotary screen 1 is rotated around the axis with respect to 7, 7, the engaging projections 71 and 12
Are re-coupled to the bearings 6, 6.

When the rotary screen 1 is released by releasing the engagement with the bearings 6 and 6, the air cylinder 14 rotates the bar 10 upward with the pivot 9 as a fulcrum. When the bar 10 comes into contact with the end ring 1R on the end portion side, the bar 10 is further rotated upward.

When the upward rotation of the rotary screen 1 reaches an appropriate height, the operation of the air cylinder 14 is stopped, and the rotary screen 1 can be pulled out to the right of FIG. In this case, since the rotary screen 1 is accompanied by the rotation of the bar 10, that is, is lifted, the bar 10 is used as a guide or a jig.
Even one person can easily pull out.

The rotary screen 1 is attached to the printing machine bases 4, 5
When the bar is remounted, the bar 10 can be used as a guide or jig, and the rotary screen can be easily fitted and covered by the bar 10 alone.

Printing machine stand 4, 5 of rotary screen 1
The remounting of the rotary screen 1 may be performed in a manner reverse to the above-described procedure for removing the rotary screen 1 from the bearings 6 and 6.

In the present invention, one end bearing and the other end bearing of the rotary screen are mounted on a support so that one can move in the width direction of the printing press with respect to the other.
This configuration (this is referred to as A for convenience) is such that the rotary screen is removably supported by these bearings (this configuration is referred to as B for convenience).
While the bearings at one end and the other end of the rotary screen are mounted on the printing press, it is possible for one person to remove the fitting of the rotary screen with these bearings.

According to the present invention, the bar extending substantially the entire length inside the rotary screen is provided at a portion where the extending end thereof is detachably supported by the support member and extends outside the rotary screen. It is supported on the machine base so that it can rotate up and down. This configuration (this is C for convenience)
Is lifted to a position where the rotary screen can be pulled out by rotating the bar upward in a state where the rotary screen is disengaged from both bearings, and the bar is used as a guide or a jig. But it allows easy removal.

The operation of re-installing the rotary screen 1 on the printing press machine stand is substantially the same as the procedure described for removing the rotary screen 1 from the dual bearings. You can do it alone.

As described above, the present invention achieves the object of enabling the rotary screen to be easily replaced by a single person when replacing the rotary screen when changing the pattern or color.

In the present invention, when the one end side and the other end side of the rotary screen are formed as narrowed end rings, the rotary screen is detached from both bearings, and the rotary screen is lifted by turning the bar upward. At this time, the printed portion of the screen is prevented from contacting or colliding with the bar extending into the inside of the screen, and the above-mentioned configurations A, B, and C enhance the usefulness described above.

[0034]

As is apparent from the above description, the present invention has an effect that the rotary screen can be easily replaced by one person in the rotary screen printing machine.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a printing machine according to the present invention,
It is sectional drawing on the line which passes through the axis of a rotary screen.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a plan view of a rotary screen, its bearing and a bearing support.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is a perspective view of an end ring at a mouth end of the rotary screen.

FIG. 6 shows a perspective view of a base.

FIG. 7 is a plan view showing a mode of supporting and connecting both ends of a bar penetrating through the inside of the rotary screen in a conventional rotary screen printing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary screen 1R End ring 6 Bearing 7 Cap 9 Pivot 10 Bar 12 Engagement projection 14 Air cylinder 16 Pivot 19 Support member at end of bar extension 60 Bearing support 71 Engagement projection

Claims (2)

[Claims] An end bearing and an other end bearing of a rotary screen are mounted on a support so that one can move in the width direction of a printing machine with respect to the other.
A bar extending substantially over the entire length of the rotary screen inside the rotary screen is removably supported by these bearings, and its extending end is removably supported by a support member. A rotary screen printing machine characterized by being supported on a printing machine base so as to be vertically rotatable at a portion extending outside the rotary screen. 2. One end bearing and the other end bearing of a rotary screen having both ends formed into a narrow drawing type end ring are provided on a support so that one can move in the width direction of a printing machine with respect to the other. The rotary screen is adapted to be removably supported by these bearings, and a bar extending substantially the entire length inside the rotary screen,
A rotary screen printing machine, wherein the extending end is supported by a support member so as to be able to be inserted and removed, and the bar is supported on the printing machine base so as to be vertically rotatable at a portion extending outside the rotary screen.