KR20080112584A - Lifting system of a printing unit for a flat screen printing machine - Google Patents

Abstract

A lifting unit of a print unit in a printing machine is provided to remove a hydraulic pump, a hydraulic tank and the like and prevent the change of a positioned print unit by an external interference. A base(200) is mounted with one or more driving motors(250) to drive a belt mounted inside and has at least one or more supporting shafts(300). A frame(100) is connected to the supporting shafts respectively and a print unit at an upper part. At least one or more operation bars(400) are mounted on the base to be connected to the driving motors as gear units to move horizontally when the motors rotate. Motion conversion elements(500) are connected to the operation bars to convert the horizontal movement of the operation bars to vertical movement.

Description

Printing unit lifting system of printing machine {LIFTING SYSTEM OF A PRINTING UNIT FOR A FLAT SCREEN PRINTING MACHINE}

Figure 1a, b is a side view and a main portion side view showing a conventional printing unit lifting device.

2 and 3 are side views showing the printing unit elevating system according to the present invention, respectively.

4A and 4B are side views illustrating the connection state of the support shaft and the operation bar of the printing unit according to the present invention, respectively.

5A and 5B are respectively a perspective view and a cross-sectional view showing a lift system according to another embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

100 ... frame 200 ... base

250 ... drive motor 300 ... support shaft

400 ... operation bar 430 ... gear unit

510 ... Link

The present invention relates to a printing unit elevating device of a printing machine, and more particularly, a support shaft connected to a base provided with a buffer unit while supporting the frame and a buffer unit for mounting the printing unit, and installed on the base. A plurality of drive motor rotational force is converted to a linear movement through the gear unit, comprising a motion conversion means connected to the operation bar is installed to vertical movement connected to the operation bar by excluding the use of the hydraulic cylinder used hydraulic oil accordingly There is no need to install a pump, a hydraulic tank, etc., and it relates to a printing unit lifting system of a printing machine for removing the contamination of textile paper by a high pressure working fluid.

In general, printing is a part of dyeing processing that forms a specific pattern through partial dyeing of textile materials. It is divided into direct printing, discharge printing, and resist printing according to the printing method, and used for printing. Roller printing and screen printing are classified according to the mechanical mechanism.

The screen printing is a method of forming a pattern set by placing a screen having a predetermined mesh in a frame having a predetermined size on the fabric of the toner, and then expanding the printing paste with a squeegee plate thereon. .

In this case, the screen used for the screen printing is exposed to the surface by washing the printed pattern, only the pattern part is eluted and removed by washing with water, and only the specific pattern remains, and is formed by applying a water-resistant paint on the pattern.

In addition, screen printing performed through the above components is mostly performed by automatic screen printing through a combination of mechanical devices, and such automatic screen printing includes a squeegee-mounted squeegee plate reciprocating motion and contact with and spaced from a tainted object. The angle adjustment to achieve a seamless dyeing is possible.

Conventional printing unit lifting device related to this technique is disclosed in Korean Patent Publication No. 635104, the configuration of which is provided through the attachment material (A2) to the frame (A1) of the printing machine (A) as shown in Figs. And a belt (2), a printing unit (3), a lifting device (4) and a control means (not shown) for controlling the same, and the printing unit lifting device (4) is a lifting mechanism part. (5), the servomotor 6, the power assist means 7 for assisting the driving force of the servomotor 6, the piston rod (7b) connected to the power assist means 7 is a ball nut (8c) The pressure of the piston rod to operate the piston of the cylinder mechanism, the operation member is connected to the piston.

In addition, the elevating mechanism (5), the operation member (5a) arranged in the transverse direction along the traveling direction of the endless track belt (2), Shanghai East shaft (5b), Shanghai East shaft (5b) is arranged to be movable ) And a lever 5c for connecting the operation member 5a.

The mechanism 8 for reciprocating the operation member 5a includes a ball screw 8b and a ball screw 8b connected to the drive shaft 61 of the servomotor 6 by a coupling 8a or the like. It is made of a configuration that is provided with a ball nut (8c) coupled to the conveying the sliding rail (8e), the bearing (8d) for rotating the ball screw (8b).

The lifting device as described above converts the forward and reverse rotational motion of the ball screw 8b to the linear motion of the ball nut 8c, and reciprocates the operation member 5a by the linear motion of the ball nut 8c. Ascending and descending the shanghai shaft 5b.

However, the elevating device as described above has a configuration in which the printing machine is raised and lowered through a plurality of power generating units consisting of a servo motor and a power assisting means, and its structure is complicated. Leakage is not the correct operation, of course, there is a disadvantage that will contaminate the dye.

An object of the present invention for solving the above problems, do not apply a hydraulic cylinder using a hydraulic oil to the rise of the frame does not require the installation of a hydraulic pump, hydraulic tank, etc. for operating the hydraulic oil, high pressure operation Raising and lowering the printing unit of the printing machine to remove the contamination of the textile paper by the leakage of the fluid at the source, to accurately control the contact and separation state with the stained material, and to prevent the position of the positioned printing unit from being changed by external interference. To provide a device.

The present invention, in order to achieve the above object, the printing unit is provided on both sides to be mounted to each frame;

A support shaft connected to the base with a cushioning means while supporting the frame;

A plurality of driving motors installed in the base and an operation bar in which rotational force of the driving motors is converted and transmitted in a linear motion through a gear unit; And

It is connected to the operation bar provides a printing unit lifting device of the printing machine consisting of a configuration comprising a movement conversion means installed to move vertically when moving to one side.

And the operation bar of the present invention provides a printing unit lifting device of the printing machine is installed to be horizontally moved by positioning through the LM guide coupled to the base.

In addition, the motion conversion means of the present invention provides a printing unit lifting device of the printing unit consisting of any one of the configuration selected from the rotational force transfer unit is screwed to the nut of the frame while being connected to the operation bar, the L-shaped link connected to the operation bar. do.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 and Figure 3 is a side view showing a printing unit lifting system according to the present invention, respectively, Figures 4a, b is a side view showing a connection state of the support shaft and the operation bar of the printing unit according to the invention, respectively, Figure 5a , b is a perspective view and a cross-sectional view showing a lifting system according to another embodiment of the present invention, respectively.

The present invention is horizontal by the drive motor 250 in the base and the support shaft 300 is installed so that the printing unit (S) is mounted on the frame 100 and the frame 100 spaced apart on the upper portion of the base 200 Operation bar 400 to be moved in the direction, it is made as a motion conversion means 500 for converting the horizontal movement of the operation bar to vertical movement.

In addition, the base 200 includes a base frame 220 on which an endless belt 210 is supported.

In addition, the frame 100 is separated from the upper portion of the base 200 is installed so as to be spaced apart, the printing unit (S) to be moved through the guide rail 110 is mounted.

In addition, the support shaft 300 is connected to the frame 100 spaced apart from the upper portion of the base 200, the support shaft 300 is a buffer member 310 provided inside the base 200 Is connected to the upper side of the

Subsequently, the operation bar 400 is positioned in the horizontal direction through the guide member 410 provided on the base 100 and the roller member 470 supporting the upper and lower portions thereof, and the operation bar 400. ) Is connected to the drive motor 430 and the gear unit 430 mounted on the base 100 is installed to convert the rotational force of the drive motor to linear motion.

In addition, the movement converting means 500 is formed as an L-shaped link 510 which is connected to the operation bar 400 and installed to move vertically when moving to one side.

In addition, the first gear 531 and the second gear (533) provided in the motion conversion means 500, the operation bar 400 and the first gear 531 is provided to the buffer member 310 The rotating shaft 535 and the rotating shaft to be freely rotated is made as a driving nut 537 connected to the frame 100.

The operation of the present invention made of the above configuration will be described.

2 to 5, the operation of raising and lowering the printing unit (S) is engaged with the drive motor 250 and the horizontal movement of the operation bar 400 and the support shaft 300 connected to the operation bar and vertical movement ) To prevent the contamination of the chromosome due to the oil generated during the operation using the hydraulic pressure by removing the drive portion for the hydraulic pressure.

In addition, the power generated by the drive motor 250 is made to be a configuration that is transmitted to the rotating shaft 300 through the operation bar by the connection of the gears to prevent malfunction as well as to enable accurate positioning.

And, the frame 100 for supporting the printing unit (S) of the present invention is to support the printing unit in four directions, each of which is connected to the support shaft 300, each support shaft is moved when the operation bar 400 is moved. While raising and lowering, the position of the printing unit S is determined.

At this time, the support shafts 300 respectively installed on one side of the frame 100 are interposed between the driving motor 250 and the clutch (not shown) to which the operation bars of one side are directly connected while the different operation bars 400 are respectively connected. Different power may be transmitted to each operation bar 400 through a configuration connected to each other, and the operation bar may be operated by the plurality of driving motors 250, respectively.

In addition, the support shafts 300 respectively installed on one side of the frame 100 are connected to one operation bar 400 to transfer the operation bar 400 through the driving motor 250 to support one frame. The support shaft 300 is to be raised or lowered at the same time.

In addition, the gear unit 430 connecting the driving motor 250 and the operation bar 400 may be made of a gear of a rack gear and a pinion gear as in the present invention, or may be made of a gear of a helical curl gear. .

The roller member 470 that the operating bar 400 engaged with the gear unit 430 when the driving motor 250 is rotated by the configuration as described above supports the guide member 410 and the operating bar 400 from the upper and lower sides, respectively. It moves to the horizontal direction through).

Subsequently, when the operation bar 400 moves, the support shaft 300 positioned in the direction crossing the operation bar 400 is connected to the operation bar 400 through the motion conversion means 500 to move up and down.

At this time, the movement converting means 500 is formed as an L-shaped link 510 to maintain a predetermined angle to raise the support shaft 300 during the movement of the operation bar 400, the upper end of the support shaft 300 The frame 100 connected to the rise.

In addition, the support shaft 300 is provided with a shock absorbing member 310 made of a spring on its bottom surface to prevent damage to the printing unit (S) by a sudden drop when the support shaft 300 is lowered.

In addition, the motion conversion means 500 according to another embodiment of the present invention, the bearing, etc. on the upper side of the buffer member 310 by the first gear 531 provided on one side when the operation bar 400 is moved. The second gear 533 of the rotating shaft 535 is supported so as to rotate freely through the drive, the drive is connected to the bottom surface of the frame 100 while the rotating shaft 535 is rotated by the rotation of the second gear (533). The nut 537 is rotated to raise and lower the frame 100 relatively.

Frame 100 to which the printing unit (S) is mounted after transferring the rotational force transmitted from the driving motor 250 through a horizontal bar and a support shaft connected thereto without using the pressure of the fluid through the above configuration. By raising and lowering), the contamination of the dyestuff is fundamentally suppressed.

As described above, according to the present invention, since the hydraulic cylinder using the hydraulic oil is not applied to the lifting of the frame, it is not necessary to install the hydraulic pump, the hydraulic tank, etc. to operate the hydraulic oil. It eliminates the contamination of the textile paper by the leak, and accurately controls the contact and separation state with the dye, and the position of the positioned printing unit is not changed by external interference.

While illustrated and described in connection with the embodiments of the present invention, it is common in the art that the present invention may be variously modified and changed without departing from the spirit or the scope of the invention provided by the following claims. I would like to clarify that those who have knowledge of this can easily know.

Claims (6)

A base having one or more drive motors mounted thereon to drive the belt and having one or more support shafts; A frame connected to each of the support shafts and to which a printing unit is connected; At least one operating bar mounted to the base and connected to the drive motor as a gear unit when the drive motor rotates to move horizontally; A printing unit lifting system of a printing machine which includes a movement converting means for converting a horizontal movement of the operation bar into a vertical movement of a support shaft to vertically move the support shaft when the drive motor is rotated. The printing unit lifting system of claim 1, wherein the operation bar is positioned in a horizontal direction through a guide member provided on a base and a roller member supporting upper and lower portions. The printing unit lifting system of a printing machine according to claim 1, wherein the support shaft is configured to absorb a shock from a frame to which a buffer member supported on a base is further connected to a bottom surface of the support shaft. The printing machine of claim 1, wherein the motion converting means is formed as an L-shaped link which is connected to the operation bar and is installed to move vertically when moving to one side so as to raise and lower the support shaft during horizontal movement of the operation bar. Printing Unit Lift System According to claim 1, wherein the motion conversion means, the first gear and the second gear to be engaged with the first gear provided on the operation bar, the rotating shaft to freely rotate on the upper portion of the support shaft and the rotating shaft to the frame so that the engagement The printing unit lifting system of a printing machine comprising a driving nut connected to rotate the horizontal movement of the operation bar to raise and lower the frame. According to claim 1, The frame is operated by a plurality of drive motors corresponding to the operation bar connected to the support shaft is installed on the base, respectively, or the operation bar of one side when the drive motor provided on both sides is rotated The printing unit lifting system of the printing machine, characterized in that the operation bar is operated differently with the configuration connected via the clutch so that the four support shafts move up and down to move the frame up and down in four directions.

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