JPH07102702B2 - Method and device for cleaning and replacing screen frame in automatic screen printing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for exchanging a screen frame in an automatic screen printing machine. The present invention relates to a screen frame exchanging device for an efficient automatic screen printing machine.

[0002]

2. Description of the Related Art In a printing process using an automatic screen printing machine, it has been pointed out that work such as removal, cleaning, and movement of a screen frame is one of the most unreasonable and unreasonable works. In recent years, with the spread of screen frame cleaning machines, only the cleaning process has been largely automated, but it is removable from the printing machine, to the printing machine, and to the cleaning machine or to the screen frame storage box. Moreover, all the work is done by hand, such as wiping off water after cleaning and drying. In addition, the number of printing lots has become smaller and smaller in recent years, and the number of printings tends to increase. Therefore, the replacement of the screen frame for changing the color arrangement or the pattern, and the loss of washing time increase. There is a tendency that the effective operating efficiency of the printing machine is lowered, and thus the printing productivity is lowered.

[0003]

Problems such as replacement of the screen frame, cleaning, drying, storage, and removal of the screen frame in the automatic screen printing machine are conventionally performed almost manually. No system has been developed to streamline the preparatory work,
This was because the decision was made by the printing workers and manual work was done at all.

The present inventors have a certain regularity in operations such as replacement, cleaning, drying, storage, and removal of the screen frame in the automatic screen printing machine. If this regularity is used, the screen frame can be replaced. It was found that various operations such as the above can be performed efficiently and rationally without imposing a burden on the operator.

The object of the present invention is to replace, clean, dry, and replace the screen frame that is necessarily attached to automatic screen printing operations.
The aim is to improve the efficiency of work such as storing and taking out and to save labor, and especially to automate the process to greatly improve the operating efficiency and rationalize the printing machine. Another object of the present invention is that the above-mentioned preparatory work attached to the automatic screen printing operation can be performed in a procedural manner without any time loss, and further, the printing work can be continued during the time of these preparatory work, and the working environment can be changed to color paste. It is an object of the present invention to provide a screen frame exchanging device which is carried out without being contaminated by the like. Still another object of the present invention is to provide an exchanging device in which the screen frame is taken out and stored in the order in which the screens are attached to the automatic screen printing machine.

[0006]

According to the present invention, a screen frame supply transport path and a screen frame discharge transport path are arranged along an automatic screen printing machine, and a discharge end of the screen frame discharge transport path is provided. Part and the supply end of the screen frame supply path, a cleaning and drying area of the screen frame, a temporary storage part that supports the screen frame so as to be able to rise between the discharge end and the cleaning and drying area, A switching supply mechanism that can switch the transfer path of the screen frame is arranged between the cleaning and drying area and the supply end, and the used screen frame from the automatic screen printing machine is transferred to the screen frame discharge transfer path. After that, the screen frame stored in the temporary storage part is supplied to the cleaning and drying area to wash and dry the screen frame. The lean frame is dispensed to the switching supply mechanism, supplied from the switching supply mechanism to the screen frame supply conveyance path, and supplied to a predetermined position of the automatic screen printing machine or the vicinity thereof through the supply conveyance path. The storage unit that supports the frame so that it can move up and down is arranged in series with the switching supply mechanism, the screen frame of the storage unit is supplied to the switching supply mechanism, and the automatic screen is passed from the switching supply mechanism through the screen frame supply transport path. A screen frame in an automatic screen printing machine, characterized in that it is supplied to a predetermined position of the printing machine or its vicinity, and the washed screen frame is discharged to a switching supply mechanism and supplied from the switching supply mechanism to a storage section for storage. A wash replacement method is provided.

According to the present invention, further, a screen frame supply transport mechanism, a screen frame discharge transport mechanism, and a discharge end portion of the screen frame discharge transport mechanism which are provided along the repeat feeding direction of the automatic screen printing machine. In an automatic screen printing machine provided with a screen frame cleaning device and a drying device provided between the screen frame supply transport mechanism and the supply end, a screen frame is provided between the discharge end and the cleaning and drying device. The primary storage device for the screen frame that supports upward movement of the screen; and the screen frame from the temporary storage device is turned upside down so that the screen surface to which the color paste is supplied is the lower side, and the cleaning and drying device is supplied. A rotary supply device for arranging the cleaning screen is disposed between the cleaning and drying device and the supply end, and the screen surface to which the color paste is supplied is the upper side of the cleaned screen frame. A screen frame reversing device for reversing the front and back; and a switching supply device capable of switching the transport path of the cleaned screen frame; and connecting the screen frame storage device for supporting the screen frame up and down to the switching supply device. During color change, the washed screen frame is supplied from the switching supply device to the screen frame supply transfer mechanism, and then supplied to the predetermined position of the automatic screen printing machine or in the vicinity thereof via the supply transfer mechanism. Supplies the screen frame supported by the storage device to the switching supply device, and supplies the screen frame from the switching supply device to the predetermined position of the automatic screen printing machine or the vicinity thereof through the screen frame supply transport mechanism, and the cleaned Interlock each device so that the screen frame is switched and stored in the storage device via the supply device. Cleaning changer of the screen frame are provided in the automatic screen printing machine according to claim and.

[0008]

In the method and apparatus for cleaning and exchanging a screen frame according to the present invention, the screen frame supply transport path and the screen frame discharge transport path are arranged along the repeat feeding direction of the automatic screen printing machine and the screen frame discharge is performed. The first feature is that a cleaning and drying area for the screen frame is provided between the discharge end of the transport path for the screen and the supply end of the transport path for supplying the screen frame.

All operations such as attachment, detachment, replacement, and color change on the same screen of the screen frame for pattern change to the automatic screen printing machine pass through the operation of attaching and detaching the screen frame to and from the automatic screen printing machine. In the present invention, by providing a transport mechanism for screen frame supply and screen frame discharge along the repeat feeding direction of the automatic screen printing machine, the screen frame can be attached and detached at any position of the automatic screen printing machine. This is made possible by the delivery device, and the screen can be easily carried in and out of the attachment / detachment position without loss time.

Color paste is always attached to the screen frame removed from the automatic screen printing machine. Therefore, it is necessary to remove the attached color paste even when the color is changed on the same screen or when the screen is stored. In the present invention, since the screen frame cleaning and drying device is provided in the vicinity of the discharge end of the screen frame discharging transport mechanism, the screen frame is cleaned and dried at the same time when the screen is carried out. Labor and time will be saved. When performing color change using the same screen frame, the screen frame after washing and drying is re-supplied to any position of the automatic screen printing machine via the discharge mechanism for screen frame supply. Will be

In the method and apparatus of the present invention, a temporary storage portion is provided between the discharge end of the screen frame discharge conveyance path and the cleaning and drying area of the screen frame so that the screen frame can be raised. Is the second feature. By providing this storage section, it is possible to separate the screen frame cleaning and drying process from the screen frame discharge and screen frame supply process, and the used screen frame can be discharged quickly, while the screen with color glue is used. The frame can be sufficiently washed and dried over time.

In the method and apparatus of the present invention, the switching supply mechanism is arranged between the cleaning and drying area of the screen frame and the supply end of the supply path, and the storage unit for supporting the screen frame so as to be movable up and down. The third feature is that they are arranged in series with the switching supply mechanism. This switching supply mechanism is capable of switching the transport of the cleaned screen frame to the screen frame supply transport path or the above-mentioned storage section, and also supplies the screen frame of the storage section to the screen frame supply transport path. It is supplied to the end. After cleaning and drying, the screen frame has the following two types of journals: (A) Redelivery to the automatic screen printing machine when changing colors and (B)
It is necessary to store the used screen frame when changing the pattern,
It is also necessary to take out a new screen frame when changing the pattern. In the present invention, since the switching supply mechanism capable of switching the transfer of the screen frame is provided between the cleaning and drying area of the screen frame and the supply end of the supply path for supply, the above three types of operations are possible, and the screen Since the frames are vertically movably stacked and provided with a storage part and a primary storage part that can mechanically store and take them out, the screen frames can be stored and taken out remarkably smoothly and without loss time.

According to the invention, the above are interrelated,
At the time of color change, the washed screen frame is supplied from the screen frame switching supply mechanism to a predetermined position of the automatic screen printing machine through the screen frame supply path or in the vicinity thereof, and at the time of pattern change, the screen frame of the storing section is supplied. Can be supplied to a predetermined position of the automatic screen printing machine or its vicinity via the screen frame switching supply mechanism and the screen frame supply transport path, and the washed screen frame can be stored in the storage section via the switching supply mechanism. Becomes

According to the present invention, the above-mentioned operations are integrated, and the efficiency and labor saving of the work such as replacement, cleaning, drying, storing, and taking out of the screen frame which is inevitably attached to the automatic screen printing operation, In particular, automation is possible, significant improvement in operating efficiency of the printing machine and rationalization are achieved, and the above-mentioned preparatory work is performed in a procedural manner without any time loss and without contaminating the work environment with color glue or the like. Is achieved. Further, the printing operation can be continued even during the time for cleaning and drying the screen frame, and the preparatory operation and the printing operation are alternately performed, so that the operation efficiency of the printing machine is significantly improved.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described with reference to the accompanying drawings.

(Structure of Apparatus) Referring to FIG. 1 showing the overall arrangement of the apparatus of the present invention, this automatic screen printing machine 1 supports a cloth 5 to be printed and intermittently or continuously feeds the cloth to be printed in a repeat feeding direction. The endless belt 4 to be fed, the printing cloth introducing device 2 for introducing the printing cloth 5 into the automatic screen printing machine, the sticking roller 3 for sticking the printing cloth to the endless belt 4, and the printing cloth 5 on the endless belt 4. It consists of a screen frame 6 to which color glue is applied. That is, in FIG. 1, the upper surface of the screen frame 6 is the surface to which the color paste is supplied.

A screen frame supply transport mechanism X and a screen frame discharge transport mechanism Y are provided along the repeat feed direction of the automatic screen printing machine 1. The screen frame supply transport mechanism X includes an upper guide rail 9 and an upper belt conveyor 10 that supports and drives the screen frame along the guide rail. Similarly, the screen frame discharging transport mechanism Y includes a lower guide rail 7 and a lower belt conveyor 8 that supports and drives the screen frame along the guide rail.

A screen frame cleaning device 31 and a drying device 41 are provided between the discharge end of the screen frame discharge transport mechanism Y and the supply end of the screen frame supply transport mechanism X. The cleaning device 31 includes a belt conveyor 32 that holds and conveys the screen frame, and a cleaning unit 33 provided on both upper and lower sides of the screen frame so as to face the screen frame. Each cleaning unit 33 is provided with a circulating water shower pipe 34 on the upstream side and a purified water shower pipe 37 on the downstream side, and an upper brush roller 35 in the middle thereof.
Also, a lower brush roller 36 is provided so that the color paste adhering to the screen surface is washed out. The washing device is followed by a drying device 41. The drying device 41 includes a belt conveyor 42 that holds and conveys the screen frame, and an air nozzle 43 provided on both upper and lower sides of the screen frame so as to face the same. The air nozzle is for draining and drying water drops attached to the screen, and the air used may be air at room temperature or hot air.

In the present invention, a primary storage device 11 for the screen frame is provided between the discharge end of the screen frame discharge transport mechanism Y and the cleaning device 31 and the drying device 41 so as to lift the screen frame. That is, the primary storage device 1 is provided above the discharge end of the screen frame discharge transport mechanism Y.
1. A so-called lifting stocker is arranged, which includes a lifting frame conveyor 12 which supports a screen frame therein and which is raised step by step, and a conveyor driving device 13 which drives this conveyor. On the upper part of the lifting stocker 11, an extruding device 14 for extruding the screen frame reaching the uppermost part to the outside is provided. Thus, the screen frame 6 transported by the screen frame discharge transport mechanism Y is retained and lifted by the lifting conveyor 12 for a predetermined number of steps, reaches the uppermost portion, and is pushed outward by the extrusion device 14.

In the present invention, the screen frame 6 from the temporary storage device 11 is turned upside down and the washing and drying device 31,
An inversion supply device 21 for supplying 41 is arranged. Since a large amount of color paste adheres to the screen is on the upper surface of the screen, the color paste can be effectively removed and washed by turning it over and cleaning. In this specific example, the reversal supply device 21 is a rotary unit including a pair of belt conveyors 23 that sandwich a screen frame and a rotary frame 22 that rotatably supports the belt conveyor. The pair of belt conveyors 23 receives the screen frame 6 from the temporary storage device 11 and is driven after half rotation, and supplies the screen frame to the cleaning and drying devices 31 and 41.

Between the cleaning and drying devices 31 and 41 and the supply end of the screen frame supply transport mechanism X, a screen frame reversing device 52 for reversing the cleaned screen frame to the original state and a screen frame transporting device. A switching supply device 51 capable of switching the route is arranged. In this specific example, the screen frame reversing device 52 is incorporated in the switching supply device (lifting rotary unit) 51 as a rotary frame. The rotary frame 52 includes a pair of belt conveyors 53 that can move back and forth.
Is provided on the machine frame of the lifting rotary unit 51 so as to be rotatable and capable of being raised by the roller chain 55. A drive device 54 is provided to drive the roller chain 55. The lifting rotary unit 51 performs the following three operations,
The drive relationship is switched and set. (I) The pair of belt conveyors 53 receives the screen frame 6 from the drying device 41 and, after a half rotation, is driven up by the roller chain 55 to supply the screen frame to the supply end of the screen frame supply transport mechanism X. To do. (Ii) The pair of belt conveyors 53 receives the screen frame 6 from the drying device 41 and, after a half rotation, is horizontally driven by the belt conveyor 53 to supply the screen frame to the screen frame storage device 61 described later. (iii) The pair of belt conveyors 53 receives the screen frame 6 from the screen frame storage device 61, and is driven up by the roller chain 55 without making a half-rotation, and the screen frame is supplied to the supply end portion of the screen frame supply transport mechanism X. Supply to.

In the present invention, the above switching supply device 51 is used.
The screen frame storage device 61 that supports the screen in a vertically movable manner is connected to the. In this specific example, the storage device 61 is a stocker unit, and the lifting frame 62 that supports the screen frame is a drive device 64.
It is provided so that it can be raised by a ball screw 63 driven by. A screen frame for pattern change is stored in the stocker unit 61 according to the arrangement order of the automatic screen printing machine. Be transferred. In addition, the used screen frames are stored as they are arranged on the printing machine. In the specific example shown in the figure, the stocker unit 61 is
Is fixed and the screen frames in the stacked state can be attached and detached, but it is of course possible to dispose the stocker unit 61 movably.

The structure and operation relating to the printing machine such as the automatic screen printing machine 1 and the cloth-to-be-printed introducing device 2 are known per se, and these known ones are used. Lower belt conveyor 8, upper belt conveyor 10, below 2
Each of the belt conveyors 3, 32, 42 and 53 is preferably made of a resin belt having a narrow width, and only the both sides of the screen frame are placed and conveyed. As a result, the transfer, cleaning, and drying of the screen frame between the respective devices can be performed without any trouble.

A complete cover (not shown) is provided below each of the lower guide rail 7, the lift force stocker 11, the rotary unit 21, the cleaning device 31, the drying device 41, etc. to prevent color glue and dirty water from dripping. To be
The lifting / lowering devices for the lifting conveyor 12 of the lifting stocker 11, the roller chain 55 of the lifting rotary unit 51, and the ball screw 63 of the stocker unit 61 are not limited to these, and other suitable devices are also possible. .

In the specific example shown in the figure, the device of the present invention is provided in the front part (introduction device side) of the printing machine, but it is also possible to install all of these in the back part of the printing machine (dryer side). Is. Drive mechanisms and control devices for driving and controlling these devices corresponding to the operation / operating cycle of the textile printing machine are provided. The drive mechanisms and control devices for these devices are known per se. Therefore, their illustration and description are omitted.

The screen frame exchanging device of the present invention is provided with each of the above-mentioned mechanisms, and each of these mechanisms can be driven manually or mechanically or by a hydraulic circuit or an electric circuit. Of course, the drive of each mechanism can be automatically controlled with the aid of a computer or sequencer, and the screen frame can be automatically replaced, washed, dried, stored, and taken out in accordance with the operation / operating cycle of the automatic screen printing machine. It is possible. The screen frame may be stored and taken out at any of the upper transport mechanism X position, the lower transport mechanism Y position, and an intermediate position therebetween.

(Operation) (1) During the printing of the A pattern and the a color combination by the automatic screen printing machine 1, the screen frame of the B pattern is pushed out from the stocker unit 61 by the extrusion device 65 one by one, and lifted. The rotary unit 51 automatically supplies and arranges on the upper conveyor belt 10 according to the printing order and waits. (2) When the printing of the pattern A and the color a is completed, the operator places the used screen frame on the lower belt conveyor 8 in the printing order.

(3) When all the screens have been mounted, the lower conveyor 8 advances in the direction of the arrow and sends the screen frames to the lifting stocker 11 in order. In the lifting stocker 11, the lifting conveyor 12 with an attachment rises at every step, and temporarily stores all the screen frames of the A pattern. (4) When the above operation is completed, the B pattern screen frame on standby on the upper conveyor 10 is transferred to the lower belt conveyor 8 by a screen frame lowering device (not shown), and is conveyed to a predetermined position in the printing order.

(5) The operator sets the conveyed B pattern screen frame at a predetermined position on the printing machine, and starts the printing work of B pattern and a color arrangement. The A pattern and the a-colored screen frame, which have been completely printed, are all automatically cleaned by the method described in the following paragraphs, so that the operator can concentrate on the B-pattern and the a-colored printing work. (6) The A pattern screen frame temporarily stored in the lifting stocker 11 during the printing operation of the B pattern and the a color scheme is
The extruder 14 sequentially transfers the sheets one by one to the rotary unit 21. In the rotary unit 21, the upper and lower belt conveyors 23 are operated in the direction of taking up the screen frame.

(7) The A pattern screen frame taken up by the rotary unit 21 is turned upside down (upper and lower in FIG. 1) so that it can be easily washed and drained in the next step. This reversal is performed by rotating the rotary frame 22 on which the belt conveyor 23 and its drive device (not shown) are mounted in the direction of the arrow. A stopper is provided on one side of the rotary frame 22 when the screen frame is picked up, and the stopper is always swung in a downward direction so that the screen frame does not drop during turning.

(8) When the inversion of the screen frame is completed, the belt conveyor 23 of the rotary unit 21 reverses in the direction of pushing the screen frame toward the cleaning device 31,
It is transferred to the belt conveyor 32 of the cleaning device 31. The belt conveyor 32 receives the screen frame and sends it to the cleaning unit 33. (9) The cleaning unit 33 includes two brush rollers 3
5, 36 and shower pipes 34, 37 are provided, and the shower pipe 34 is supplied with water from a circulation pump that reuses waste water. One of the shower pipes 37 is supplied with purified water for rinsing, and the screen frame Cleaning is done automatically. The cleaning unit 33 may be fixed in position and passed through the screen frame, or the cleaning unit 33 may be moved in the left-right direction in the drawing while temporarily fixing the screen frame.

(10) The cleaned screen frame is sent to the drying device 41 by the belt conveyor 32. High speed air is sprayed onto the drying device 41 from both the upper and lower sides of the screen frame to scatter water. The air nozzle 43 is connected to a turbo blower (not shown) and has a structure in which high-speed air with a wind speed of 100 m / sec or more is uniformly blown out from the slit. It is also effective to slightly heat the supply air.

(11) The washed and dried screen frame of A pattern is sent to the next lifting rotary unit 51, and is turned upside down again so as to be in the state of printing.
In this case as well, similar to the rotary unit 21, the belt conveyor 53 and the like are integrated into the rotary frame 52.
Turns and turns around. In addition, this rotary frame 5
A stopper that can be opened and closed by an air cylinder or the like is provided on both sides of 2, and any one of them automatically acts as a stopper according to the entering direction of the screen frame. In the above case, since the screen frame enters from the left side of the drawing, the right stopper is closed and the left stopper is opened, and the rotary frame 52 turns in the arrow direction. As will be described later, when the new pattern screen is taken out from the stocker unit 61, the left stopper is closed and the right stopper is opened.

(12) The A-patterned screen frame, which has been washed, dried and inverted, is lifted upward by the lifting rotary unit 51 one by one and delivered to the upper conveyor belt 10. Each A-pattern screen frame is printed on the upper belt conveyor 10 according to the printing order.
It is arranged on the upper side and waits until the printing of pattern B and color a is completed.

(13) When the printing of the pattern B and the color a is completed on the printing machine 1, the process returns to the above (2), the used screen frame is mounted on the lower belt conveyor 8, and the following (3) and the following steps are carried out. Repeat in the same order, A pattern-b color scheme, B
The pattern-b color scheme and the A-pattern color scheme are alternately printed, and preparatory work such as washing, drying and carrying of the used screen frame is automatically performed during the printing.

(14) When the printing of all the predetermined colors of the A pattern is completed and the printing of the B pattern is started, the upper belt conveyor 1
There is no screen frame above 0. Then, the next new pattern, c-pattern screen frame is pushed from the stocker unit 61 into the rotary frame 52 of the lifting rotary unit 51 by the pushing device 65 one by one. In this case, it is lifted up to the height of the upper belt conveyor 10 without being inverted, and all the c-pattern screen frames are sequentially arranged on the conveyor belt 10 in the printing order and stand by.

(15) c from the stocker unit 61
Transfer of the pattern screen frame is completed, and the stocker unit 6
As soon as 1 is emptied, the screen frame of the final color pattern of A pattern waiting in the lifting stocker 11 is washed and dried by the same steps as described above, and the lifting rotary unit 51 reverses the front and back sides, and then the stocker unit It is stored in 61. In this case, the ball screw 63
The rotation of the lifting frame 62 causes the lifting frame 62 to sequentially descend for each screen frame. (16) When all the A-pattern screen frames are stored, the lifting frame 62 of the stocker unit 61 is lowered all at once by the ball screw 63, and the A-pattern screen frames are taken out and replaced with the next D-pattern screen frames. Is set, and it rises again and stands by at a predetermined position.

(17) Subsequently, when printing of all the predetermined colors of the B pattern is completed, the printing operation is carried out alternately with the C pattern-a color pattern and the D pattern-a color pattern in the same order and steps as above. During this time, the operator only needs to set and remove the screen and the like in the printing area, and the color change work including the screen frame and washing, which conventionally took 15 to 20 minutes for three people, can be done by one person by the method of the present invention. It is possible in about 12 minutes (however, in 8-color printing).

(18) In the above operation cycle, data such as pattern number, number of color arrangements, number of colors (number of screen frames), etc. are input to the terminal attached to the operation panel of the printing machine according to the specified printing process. Then, according to the instructions of the computer, everything works automatically according to the printing work cycle. Although not shown in the figure above the stocker unit 61, a bar code reader is installed, and the bar code mark attached to each screen frame confirms the pattern number, pattern order, etc., and then the card is ejected from the stocker unit 61. It

[0040]

According to the present invention, the screen frame supply transport path and the screen frame discharge transport path are arranged along the automatic screen printing machine, and the discharge end of the screen frame discharge transport path and the screen frame are disposed. A cleaning and drying area of the screen frame is arranged between the supply end of the supply path and a temporary storage part of the screen frame which can be raised between the discharge end and the cleaning and dry area. By arranging a switching supply device capable of switching the transfer path of the cleaning device between the cleaning and drying area and the supply end, and arranging them so that the screen frame moves in a fixed order, the automatic screen printing machine According to the operation / operation cycle, the screen frame can be exchanged and washed, dried or stored and paid out efficiently without loss time.

Thus, each work during the printing work, for example, when changing the color arrangement by printing the same pattern, the used screen frame is taken out from the printing machine, washed, dried and returned to the same position of the printing machine again. When printing of all colors with the same pattern is completed, take out the used screen frame from the printing machine, wash, dry and store it in the storage rack device. If starting printing with a new pattern screen, storage rack device Therefore, various operations such as taking out the screen frame and delivering it to a predetermined arrangement position of the printing machine can be efficiently performed according to the printing operation program.

[Brief description of drawings]

FIG. 1 is a side view of a screen frame cleaning and exchanging device of an automatic screen printing machine according to the present invention.

[Explanation of symbols]

1: Automatic screen printing machine 2: Introducing device for printing cloth 3: Adhering roller 4: Endless belt 5: Printing cloth 6: Screen frame 7: Lower guide rail 8: Lower belt conveyor 9: Upper guide rail 10: Upper belt conveyor 11: Lifting stocker 12: Lifting conveyor 13: Conveyor drive device 14: Extrusion device 21: Rotary unit 22: Rotary frame 23: Belt conveyor 31: Washing device 32: Belt conveyor 33: Washing unit 34: Circulating water shower pipe 35: Upper part Brush roller 36: Lower brush roller 37: Clean water shower pipe 41: Drying device 42: Belt conveyor 43: Air nozzle 51: Lifting rotary unit 52: Rotary frame 53: Belt conveyor 54: drive device 55: Roller chain 61: Stocker Unit 62: Rif Te queuing frame 63: Ball scan Screw 64: drive device 65: extrusion device

Claims (3)

[Claims] 1. A screen frame supply transport path and a screen frame discharge transport path are arranged along an automatic screen printing machine, and a discharge end of the screen frame discharge transport path and a screen frame supply transport path are supplied. A cleaning and drying area for the screen frame between the cleaning device and the end portion, a temporary storage part for supporting the screen frame in an ascending manner between the discharging end portion and the cleaning and drying area, the cleaning and drying region and the supply end portion. Between the screen frame transport path
A switching supply mechanism that can perform switching is arranged, and the used screen frame from the automatic screen printing machine is
The screen frame stored in the temporary storage section is stored in the temporary storage section through the screen frame discharge transport path, and the screen frame is supplied to the cleaning and drying area to wash and dry the screen frame. Switch the existing screen frame
Discharge to the feeding mechanism, and supply the screen frame from the switching feeding mechanism.
It is supplied to the feeding transport path and is fed to the predetermined position of the automatic screen printing machine or its vicinity through the feeding transport path.When changing the pattern, the screen frame is supported so that it can move up and down.
The storage unit is connected to the switching supply mechanism and placed
Supply the screen frame of the
It feeds from the feeding mechanism to the predetermined position of the automatic screen printing machine or its vicinity through the screen frame feeding transport path, and the washed screen frame is discharged to the switching feeding mechanism.
Then, a method for cleaning and replacing a screen frame in an automatic screen printing machine, characterized in that the switching supply mechanism supplies and stores it in a storage section . 2. The screen frame stored in the temporary storage section is arranged such that the screen surface to which the color paste is supplied is on the lower side.
Turn it over and supply it to the washing and drying area.
The screen side to which the color paste is supplied is the upper side of the lean frame.
Cleaning replace a screen frame according to claim 1, wherein dispensing the front and back are reversed by switching supply mechanism as. 3. A screen frame feeding carrying mechanism and a screen frame discharging carrying mechanism provided along the repeat feeding direction of an automatic screen printing machine, and a discharge end of the screen frame discharging carrying mechanism and a screen frame feeding carrier. in the automatic screen printing machine provided with a washing device and a drying device of the screen frame which is provided between the feed end of the mechanism, between the washing and drying apparatus and the discharge end, raisable supports the screen frame The primary storage device for the screen frame that operates ; and the screen frame from the temporary storage device
Reverse the front and back so that the supplied screen surface is on the bottom side.
Was washed and rotary feeder for feeding a drying apparatus; were placed, between the washing and drying apparatus and the supply end, the screen faces the washed screen frame color paste is supplied it to the upper
Screen frame reversing device for reversing the front and back like ; and washing
A switching supply device capable of switching the transport path of the cleaned screen frame is arranged, and a storage device for a screen frame that supports the screen frame so that the screen frame can be moved up and down is connected to the switching supply device, and a washed screen is used when changing colors. switch the frame
The screen is supplied from the supply device to the screen frame supply transfer mechanism, and then supplied to a predetermined position of the automatic screen printing machine or in the vicinity thereof through the supply transfer mechanism , and when the pattern is changed, the screen is supported by the storage device.
To the switching supply device,
Characterized in that with a predetermined position or supplied in the vicinity of the automatic screen printing machine, to interlock the devices so as to housed in the housing unit through a supply device switches the washed screen frame through the Luo screen frame feed transport mechanism Cleaning and replacing device for screen frame in automatic screen printing machine.