JPH0665490B2 - Traveling type semi-automatic screen printing machine - Google Patents

Description

TECHNICAL FIELD The present invention relates to a traveling semi-automatic screen printing machine.

(Prior Art) Generally, when performing hand-printing, a skilled craftsman prints a print on a workpiece using a hand-made screen type and a squeegee. However, depending on the physical condition of the craftsman on that day, the squeegee held by both hands can be operated. There is a subtle deviation. It was often the case that this irregularity appeared as uneven color on the printed material and did not make a commercial value.

Therefore, conventionally, an automatic screen printing machine that solves the above problems has been developed and used. This printing machine
A traveling carriage is provided on a screen printing table, a screen die is fixedly provided on the traveling carriage, and a squeegee that automatically moves on the screen silk screen is provided on the traveling carriage.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional automatic screen printing machine,
Certainly, the squeegee worked well in balance and no uneven coloring occurred, but after stopping the traveling carriage at the predetermined position on the screen printing table and printing, the traveling carriage was automatically moved. When the vehicle is stopped at the next predetermined position, a slight error occurs in the stopping accuracy due to the mechanical stopping accuracy of the traveling vehicle. When the continuous pattern is printed on a long print object, this stop error appears as a deviation of the pattern at the joint between the printed pattern and the pattern at each position, and the printed product itself loses its commercial value. There was a problem.

Therefore, in order to solve this problem, Japanese Patent Publication No. 53-30
After manually moving the traveling carriage integrally fixed with the screen type as disclosed in Japanese Patent No. 839, the locking claws provided on the carriage are locked to the positioning member provided on the screen printing table for positioning. A semi-automatic screen printing apparatus has been proposed in which a squeegee is moved by a driving means to perform printing.

However, this semi-automatic screen printing device also has the following problems.

That is, this semi-automatic screen printing apparatus is designed to be used with the screen type fixed to the traveling carriage, but the screen type has several hundred screens on the form frame.
Since it is formed by applying tension of kg, it is easily distorted, and its shape differs slightly depending on the screen type. Also, since the screen itself expands and contracts depending on the humidity, the distortion changes subtly during the day.

Therefore, when multi-color dyeing is performed by exchanging a number of screen dies, it is necessary to finely adjust the fixed position of the screen dies to the traveling carriage, which requires very high skill in the screen dies exchange work. There's a problem.

Furthermore, since the temperature changes even during one day, thermal expansion and contraction of the screen printing table and the traveling carriage occur during the work, and even if the locking claw is accurately locked to the positioning member, a slight deviation occurs, There is also a problem that a connecting portion between the patterns printed continuously is displaced, and a conventional hand-made screen type cannot be used as the screen type, resulting in an increase in cost.

The present invention has been developed in view of the above points, and its object is to continuously print a pattern on a long object to be printed by a screen type. Not to cause a gap in the connection between the and the pattern, and when squeegeeing the screen type, with the pattern printed on the object to be printed does not produce partial shades of light and shade,
It is an object of the present invention to provide a traveling semi-automatic screen printing machine that can always perform accurate printing even when heat shrinkage occurs in the screen printing table and the traveling carriage due to changes in temperature, and that facilitates screen-type replacement work.

(Means for Solving Problems) Therefore, in order to effectively achieve the above object, the traveling semi-automatic screen printing machine according to the present invention has a screen printing table inclined downward and a manual operation on the screen printing table. The screen printing table is provided with two traveling rails which are parallel to each other and are parallel to each other, and the traveling rail below the inclination has a lower end of a handwork screen type. Positioning locking members for positioning the hand-made screen type by locking the protrusions formed at the corners are provided at each printing pitch of the hand-made screen type, and the traveling carriage is slightly smaller than the hand-made screen type. It has a large rectangular frame shape and is installed on the screen printing table. 2
It has a trolley body that is movably supported on a traveling rail of a book, and a support piece that detachably supports a handwork screen type that is received from below and is fitted into the frame of the trolley body. The piece is a screen type in which the handmade screen die is supported by the handmade screen die, and then the handmade screen die is moved upward by a predetermined pitch along the inclination of the screen printing table and then lowered to bring the handmade screen die into contact with the screen printing table. An endless chain that has an operating means and that is rotated by a drive unit attached to the carriage body is provided on a side portion of the carriage body, and a slide guide rod is provided along the chain. A supporting rod is slidably provided on the sliding guide rod, and the chain is locked at an end of the supporting rod. Scraped average lath squeegee, they are a configuration that is vertically movably attached at actuator.

(Operation) With the above configuration, first, the material to be printed is attached to the screen printing table on which the traveling carriage is installed, and the handwork screen type is fitted into the frame of the carriage body and placed on the support piece provided on the carriage body. Next, at one end of this handcrafted screen type placed, while attaching the printing paste kneading the desired dye,
The traveling carriage is moved to a predetermined position on the printing table, that is, to a state where the hand-working screen type projecting piece is locked by the positioning locking member, and while maintaining this locking state, the hand-working screen type is temporarily screened. After moving it up a little along the inclination of the printing table, it is lowered toward the printing table and the screen gauze is brought into close contact with the object to be printed on the screen printing table. In this way, after the handwork screen type is moved up a little along the inclination of the screen printing table,
By lowering it toward the printing table, it is possible to smoothly lower the lower edge of the handwork screen type without hitting the upper end of the traveling rail.

After doing so, the drive device is operated to rotate the endless chain on the side of the bogie main body. Then, the support rod having a squeegee whose one end is locked to the endless chain is moved together with the rotation of the endless chain, and the squeegee is moved to the lower side of the handwork screen type together with the support rod. Next, the squeegee is lowered by an actuating device, and the lower end of the squeegee is brought into contact with the screen gauze with the printing paste. Then, by rotating the endless chain in the reverse direction, the squeegee is moved along the screen gauze while scratching the printing paste, and the pattern is printed on the material to be printed.

If the pattern can be printed on the object to be printed at a predetermined position in this way, the squeegee that has descended as described above is raised by the actuating device, and the hand-made screen type that is in close contact with the object to be printed is vertically moved with respect to the screen printing table by the operating means. Raise a little to. After that, hold the protruding piece at the lower end corner of the hand-crafted screen by hand to release it by passing over the positioning locking member under the screen printing table that was locked by this protruding piece. The traveling carriage is moved until it comes into contact with the next positioning locking member provided on the screen printing base.

Then, when the projecting piece again contacts the positioning locking member, the traveling carriage is stopped at that position. Then, the projecting piece is accurately locked to the positioning locking member, and printing is performed again in the same manner as above.

That is, the traveling carriage is sequentially moved manually as described above, and the handwork screen type is accurately aligned, and the squeegee is automatically operated to form a continuous pattern on the object to be printed attached to the screen printing table. Printing.
In addition, the space between the positioning locking members provided at the lower end of the screen printing table is set to the width of the screen mesh of the hand-crafted screen type, and together with the positioning accuracy of the screen type, the edge of the pattern printed first, and then the The printed pattern can be accurately matched with the edge of the pattern.

Even if the screen printing table and traveling carriage are thermally contracted due to changes in temperature, spacers may be inserted or removed between the protrusions, similar to the conventional manual screen type, to prevent the protrusions from forming an angle with respect to the manual screen type. By adjusting etc.,
It is possible to always print accurately with no deviation from the design.

(Example) Hereinafter, the Example of this invention is described based on drawing.

In FIGS. 1 to 6, (1) is a screen printing table, which is formed in a laterally long width of a predetermined width so that an object to be printed (A) such as an elongated cloth can be stretched.

This screen printing table (1) is inclined at a desired angle in front so that it can be easily operated. A slender traveling rail (2) is attached along the longitudinal direction at the upper and lower portions of the slope of the screen printing table (1). A traveling carriage (4) which is guided by the traveling rail (2) and can travel in the left-right direction of the textile printing table (1) is installed on the screen textile printing table (1).

Therefore, the traveling carriage (4) will be described more specifically. The traveling carriage (4) (see FIGS. 1 to 3) is a rectangular frame having a width of four sides of the screen printing table (1). The body is a carriage main body (5), and rollers (6) rolling on the lower surfaces of the four corners of the main body (5) in contact with the traveling rails (2), respectively.
(Partially omitted), and a roller (7) (partially omitted) that is in contact with the screen printing table (1) and rolls on the screen printing table (1) are attached. The screen printing table (1) can be smoothly moved to the left and right by inputting.

The trolley body (5) is a frame body slightly larger than the handwork screen type (3), and has a supporting piece (1) having an L-shaped cross section inside.
7) and (21), and as shown in FIG. 4, the outer frame (18) of the handwork screen mold (3) is attached to the support piece (17),
Hand-made screen type (3) by placing on (21)
Can be detachably supported in the frame of the carriage main body (5).

The handwork screen mold (3) has a screen gauze (8) stretched by a metal frame (9), and the screen gauze (8) is made of silk,
Woven from metal, nylon, polyester, etc. to give the desired pattern. (10) is a wooden frame for accumulating glue,
It is attached in a shape along the lower side of the handwork screen die (3). At the left end of the wooden frame (10), as shown in FIG.
A letter-shaped protrusion (11) is provided so as to be able to be engaged with a positioning engaging member (12) attached to the traveling rail (2). Further, as shown in FIG. 5, an I-shaped projecting piece (13) is attached to the lower right end of the handwork screen die (3) so as to come into contact with the positioning locking member (12). .

The support pieces (17) are provided at two locations (partially not shown) near both ends inside the upper frame part (5a) and the lower frame part (5b) of the bogie body (5), and the supporting screen type (3) The outer frame (18) of (1) is supported so as to be received from the lower side, and is operated by a hand-operated screen type lifting / lowering operation tool (14) as a screen type operation means.

The above handwork screen type lifting / lowering tool (14) supports the handwork screen type (3) by a solenoid (16) attached inside the upper frame part (5a) and the lower frame part (5b) of the carriage body (5). The L-shaped support piece (17) can be moved up and down with respect to the screen printing table (1).

On the other hand, the support pieces (21) are provided at two locations (partially not shown) near the central portion inside the upper frame portion (5a) and the lower frame portion (5b), and outside the handwork screen mold (3). Frame (1
8) is supported so as to be received from the lower side, and is operated by a hand-operated screen type forward feed operation tool (15) as a screen type operation means.

The handwork screen type forward feed operation tool (15) is provided on the upper surfaces of the upper frame portion (5a) and the lower frame portion (5b) of the carriage body (5).
A flat bracket (19) is provided so as to project toward the handwork screen die (3), and a solenoid (20) is attached to the lower surface of the bracket (19).
An L-shaped supporting piece (21) for supporting the handwork screen die (3) is attached to the operating portion facing the side, and this supporting piece (21)
Is moved up and down along the inclination of the screen printing table (1).

That is, the handwork screen type (3) has the support piece (1
7) and (21), while being supported in the frame of the carriage main body (5), a hand-operated screen-type lifting / lowering actuator (14) and a hand-operated screen-type forward feed operation as screen-type operation means. By means of the tool (15), the handwork screen die (3) can be lowered relative to the screen printing table (1) while being slightly shifted upward along the inclination of the screen printing table (1).

Further, endless chains (23) are provided on both sides of the traveling carriage (4), and the endless chains (23) are rotated by a drive device (22) provided on the traveling carriage (4).
That is, as shown in FIG. 2, the lower frame portion (5
b) A speed reducer (24) is installed at the center, and the speed reducer (2
A drive motor (25) is connected to the top of 4). A rotating shaft (26) extends from the speed reducer (24) along the lower frame portion (5b) in the left-right direction and is supported by bearings (28) at both ends of the lower frame portion (5b). Sprockets (27) (one of which is not shown) are fitted to both ends of the rotating shaft (26), and both sides of the lower end of the carriage body (5) are fitted so as to correspond to the both sprockets (27). Also, a sprocket (29) (one of which is not shown) is rotatably supported by bearings. An endless chain (23) is stretched on each of the sprockets (27) and (29) provided on both sides of the bogie body (5).

In addition, on both side frames (30) of the bogie body (5), sliding guide rods (3) are provided along with the endless chains (23).
1) is provided. A squeegee support rod (32) is slidably provided on both of the sliding guide rods (31). The ends (32a) of the support rods (32) are respectively locked to the chains (23), and the support rods (32) are
Further, a squeegee (33) is attached to the actuator (34) so as to be able to move up and down. A fluid pressure cylinder is used as the actuator (34), and a squeegee (33) is attached to the tip of the hanging rod (34a). The traveling semi-automatic screen printing machine of the illustrated embodiment is constructed as described above.

Next, the case of using the traveling type semi-automatic screen printing machine will be described. First, the article to be printed (A) is attached to the screen printing table (1) on which the traveling carriage (4) is installed. Next, the hand-made screen mold (3) is placed on each of the support pieces (17) ... (21).

Traveling trolley (4) equipped with this handmade screen type (3)
Is manually pushed to the left or right of the screen printing table (1) to move the traveling carriage (4). Then, the projecting piece (11) protruding from the lower end corner of the hand-made screen die (3) is provided with a positioning locking member (12) provided at predetermined intervals on the traveling rail (2) below the screen printing table (1). The traveling carriage (4) is moved until it comes into contact with and is stopped at that position.

In addition, the handwork screen type (3) includes a support piece (17),
Since the outer frame (18) is only received and supported from the lower side by (21), it can be freely moved within the frame of the carriage main body (5), and the traveling carriage (4) is distorted by thermal expansion and contraction. However, the projecting piece (11) can always be accurately locked to the positioning locking member (12) and always fixed in a fixed position.

Next, the projecting piece (11) is brought into contact with the positioning locking member (12), and the solenoid (19) of the handwork screen type forward feed operating tool (15) is operated to maintain the positioned state, thereby supporting the supporting piece. (21) is moved upward along the inclination of the screen printing table (3) to advance the handwork screen die (3) to a predetermined position of the trolley body (5), and at the same time, to move the handwork screen die lifting / lowering tool (14). The solenoid (16) is actuated to move the support piece (17), and the handmade screen die (3) is lowered to put the screen gauze (8) on the article to be printed (A) stretched on the screen printing table (1). Contact. Further, a printing paste prepared by kneading a dye is placed on the upper and lower ends of the screen gauze (8). That is, the handwork screen die (3) is once slightly moved up along the inclination of the screen printing base (1) in this way, and then is lowered toward the printing base (1), whereby the handwork screen die (3) is It is possible to smoothly lower the lower edge of the rail without hitting the upper edge of the traveling rail (2).

Next, the drive device (22) is actuated to rotate the endless chain (23) to move the squeegee (33) to the lower end of the handwork screen die (3) through the support rod (32), and at the same time, the actuating device ( The fluid pressure cylinder of 34) is operated to lower the squeegee 33, and the lower end of the squeegee 33 is brought into contact with the screen gauze 8 surface. In this way, the drive device (22) is actuated again to reverse the endless chain (23), and the squeegee (33) is printed with the printing paste and the surface of the screen gauze (8) is scraped up to the screen gauze (8). The printed pattern is printed on the material to be printed.

When the printing on the object to be printed (A) is completed at this position, the hand-operated screen type lifting and lowering operation tool (14) is operated to raise the hand-operated screen mold (3) and contact with the object to be printed (A). Separate the screen gauze (8) from the material to be printed (A).

If the pattern can be printed on the object to be printed (A) at a predetermined position as described above, then the protrusion (1) of the hand-made screen type (3) is used.
1) Hold the (13) by hand to move over the positioning locking member (12) with which the projecting piece (11) is in contact, and move the traveling carriage (4) to the right or left of the screen printing table (1). Move in the direction. Then, it stops at the position where the projecting piece (11) comes into contact with the next positioning locking member (12), and again the projecting piece (11) of the hand screen type (3) is moved to the positioning locking member (1).
2) Accurately contact with and position.

In this way, after the traveling carriage (4) is positioned at the printing position next to the object to be printed (A), the handwork screen type forward feed actuating tool (15) and the handwork screen type lifting actuating tool (14) are actuated again. Then, the material to be printed (A) is printed in the same manner as above,
A pattern continuous with the pattern printed previously is printed on the object to be printed (A). When the printing is completed at each predetermined position in this way, the traveling carriage (4) is successively moved by hand to print a long pattern to be printed (A) without any deviation.

Further, when cleaning the handwork screen type (3) mounted on the traveling carriage (4), hold the projecting pieces (11) (13) of the handwork screen type (3) by hand and remove the handwork screen from the carriage body (5). Remove the mold (3), screen gauze (8)
Should be washed.

As described above, in the traveling type semi-automatic screen printing machine of the above-mentioned embodiment, the handwork screen type (3) is supported while being placed on the supporting pieces (17) and (21) provided inside the carriage main body (5). After the traveling carriage (4) is moved to a predetermined position, the protrusion (11) of the handwork screen (3) is locked to the positioning locking member (12) to perform positioning. Even if the traveling carriage (4) is distorted due to expansion and contraction, the handwork screen die (3) can be accurately positioned regardless of the distortion. Therefore, if the projecting piece (11) is brought into contact with the positioning locking member (12), it is possible to always print a continuous pattern accurately.

Further, the hand-work screen type (3) has a mounting angle of the projecting piece (11) by inserting or removing a spacer or the like between the projecting piece (11) and the outer frame (18) as in the conventional case. It is possible to adjust the design accurately even if the screen printing base and the traveling carriage are thermally contracted due to changes in temperature because the temperature can be finely adjusted.

Further, in this embodiment, since the printing table is inclined toward the front, the printing operation is very easy.

Further, a hand-held screen type lifting / lowering implement (1
4) and a handwork screen type forward feed actuating tool (15) are provided, so that the handwork screen type (3) is moved to the carriage (4)
The screen gauze (8) does not come into direct contact with the article to be printed (A) when it is installed in the machine, and after the traveling carriage (4) is stopped at a predetermined position, the operating tool (14) (1)
5) can be operated to bring the screen gauze (9) into contact with the article to be printed. When the handwork screen die (3) is removed from the traveling carriage (4), the lifting operation tool (14) is operated to raise the handwork screen die (3) so that the printing table (1) is tilted. Since the screen die (3) shifts to the lower frame portion (5b) side of the bogie body (5), the manual screen die (3) can be easily removed. And since the handwork screen mold (3) can be easily removed from the traveling carriage (4), the work is easy and the screen gauze (9) can be easily washed. Furthermore, since the handwork screen type (3) can be easily attached to and detached from the traveling carriage (4), anyone can easily perform the printing work.

The present invention is not limited to the above-mentioned embodiment, but the endless chain (23) and the sliding guide rod (31) are provided on one side of the traveling carriage (4), and the endless chain (23) and the sliding guide rod (31) are slidable. The support rod (32) may be supported by the guide rod (31) in a cantilever shape so as to operate.

(Effects of the Invention) As is apparent from the above description, in the traveling semi-automatic screen printing machine of the present invention, the handwork screen type is loosely fitted and supported by the traveling carriage, and is mounted on the traveling carriage at a predetermined position. By bringing the piece into contact with the positioning locking member of the traveling rail provided on the printing table, the position of the handwork screen type can always be accurately adjusted, so the end of the pattern printed first and the next printing The edges of the design can be matched exactly without shifting. Therefore, it is possible to easily print a continuous pattern on a long object to be printed without shifting in the middle, and it is possible to eliminate the loss of commercial value in the manufacturing stage due to the pattern shifting.

Further, the hand-made screen type used in the traveling semi-automatic screen printing machine of the present invention can be the hand-made screen type that has been used conventionally, which is very convenient and economical, and the replacement work of the screen type is possible. Is easy.

Further, since the squeegee is also automatically operated, when printing on the object to be printed, no shade of color is produced on the object to be printed. Moreover, if the printing machine of the present invention is used, even a person who is not a skilled printing person can easily perform accurate and uniform printing. As described above, the present invention is an epoch-making invention for a printing company.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment according to the present invention, FIG. 2 is a perspective view of a right corner of a traveling carriage seen from the outside, and FIG. 3 is a perspective view of a left corner of the traveling carriage seen from the outside. 4 is a perspective view of the left corner of the traveling carriage seen from above, FIG. 5 is a perspective view of the lower right corner of the traveling carriage seen from above, and FIG. 6 is a perspective view of the upper portion of the traveling carriage seen from above. . (1) …… Screen printing table, (2) …… Traveling rail,
(3) …… Handmade screen type, (4) …… Truck,
(8) …… screen gauze, (11) …… projection piece, (12)
...... Positioning locking member, (14) (15) ...... Screen type actuating means (manual screen type raising and lowering actuating device, manual working screen type forward feeding actuating device), (22) ...... Driving device, (2
3) ... endless chain, (31) ... sliding guide rod, (32) ... supporting rod, (33) ... squeegee, (3
4) ... Actuator.

Claims (1)

[Claims] 1. A screen printing table inclined downward to the front, and a traveling carriage supported on the screen printing table so as to be manually movable. The screen printing table has two parallel traveling rails. A positioning locking member that is positioned in parallel with the upper and lower sides and engages with the traveling rail below the slope by engaging the protruding piece formed at the lower end corner of the handwork screen type by hand The carriage is provided for each screen-type printing pitch, and the traveling carriage has a rectangular frame shape slightly larger than the handwork screen-type and is movably supported by two traveling rails provided on the screen-printing stand. It has a main body and a support piece that receives the handwork screen die from below and detachably supports it in a state of being fitted in the frame of the trolley body, and this support piece supports the handwork screen die. In the state, the hand-made screen die is provided with a screen-type actuating means for temporarily shifting the hand-made screen die along the inclination of the screen printing table upward by a predetermined pitch, and then lowering it to bring the hand-made screen die into contact with the screen printing table, and An endless chain that is rotated by a drive unit attached to the carriage body is provided on a side portion of the carriage body, and a slide guide rod is provided along the chain. A supporting rod is provided slidably, and the chain is locked to an end of the supporting rod. A squeegee that scrapes and evens the upper surface of the screen screen of the hand-worked screen is attached to the supporting rod as an operating device. A traveling semi-automatic screen printing machine characterized by being installed so that it can be raised and lowered.