CN103331994B - Treadmill flat screen printing machine - Google Patents

Abstract

The invention relates to the technical field of flat screen printing equipment, and provides a treadmill flat screen printing machine, which includes a treadmill frame, walking devices are provided on both sides of the treadmill frame, and running gear is provided between the treadmill frame and two guide rails. Station positioning device, the running platform frame is equipped with a knife holder frame, the inside of the knife holder frame is rotated with a screen frame, a screen frame positioning device is installed between the screen frame and the guide rail, and the sliding device on the knife holder frame is driven by a scraper. The scraper device driven by the device, the two sides of the treadmill frame are respectively equipped with lifting devices for driving the screen frame and the scraper device to rise or fall; the signal output end of the station positioning device of the treadmill is electrically connected to the signal processing unit, and the signal processing unit The signal output ends are respectively electrically connected with the signal input ends of the traveling device, the lifting device and the scraper driving device. It can realize effective and accurate stop action when walking between each station, and the screen frame can be accurately positioned on each station, which ensures the positioning accuracy of the treadmill flat screen printing machine.

Description

Running platform flat screen printing machine

technical field

The invention relates to the technical field of flat screen printing equipment, in particular to a running platform flat screen printing machine.

Background technique

my country is a big country producing textiles. The annual demand for printing and dyeing machinery is quite large. Flat screen printing machines have been widely promoted and applied due to their advantages of low equipment investment, high production efficiency, many printing patterns and wide adaptability of cloth quality. .

With the development of science and technology, the automatic control technology level of flat screen printing machines is also gradually improving and developing. At present, running platform flat screen printing machines with a relatively high degree of automation have appeared on the market. Running platform screen printing machines mainly include treadmills, The walking device installed on both sides of the running platform, the screen frame installed on the running platform, and the lifting device that drives the lifting movement of the screen frame. When working, the running platform walks intermittently on the two guide rails of the working platform. When the screen frame is lowered, the scraper device installed on the screen frame scrapes and prints the screen, so that the fabric attached to the working platform is scraped and printed with a preset pattern. .

During the work of the running table flat screen printing machine, the accuracy of printing and color registration directly affects the appearance and quality level of the finished product, so it is required that the entire walking process and the lifting process of the screen frame have accurate positioning, in order to improve production efficiency and reduce costs , and must maintain a certain walking and lifting speed, and if the speed is too fast and the inertia is too large, it will lead to misalignment of positioning and collision or wear of equipment parts, which will inevitably affect the accuracy of printing and color registration. The running stability and accuracy of the flat screen printing machine will directly affect the printing performance of the flat screen printing machine.

Contents of the invention

The purpose of the present invention is to provide a treadmill flat screen printing machine, aiming to solve the problems of poor product quality and low production efficiency caused by poor running stability and accuracy of the treadmill flat screen printing machine in the prior art.

The present invention is realized in this way. The treadmill flat screen printing machine includes a treadmill frame that can walk along the guide rails on both sides of the working platform. Both sides of the treadmill frame are provided with walking devices for driving the printing machine to walk, wherein:

A treadmill position positioning device is provided between the treadmill frame and the two guide rails, a tool holder frame is provided inside the treadmill frame, and a net frame is arranged on the inner side of the knife holder frame, and the net frame A screen frame positioning device is provided between the frame and the guide rail, a scraper device driven by a scraper drive device is slid on the knife holder frame, and the two sides of the treadmill frame are respectively provided with Lifting device for raising or lowering the scraper device;

The signal output end of the treadmill station positioning device is electrically connected to the signal processing unit, and the signal output end of the signal processing unit is respectively electrically connected to the signal input end of the walking device, the lifting device and the scraper driving device .

As an improved solution, the treadmill station positioning device includes a proximity switch fixedly arranged on one side of the treadmill frame, and a number of proximity switches fixedly arranged on the corresponding guide rails for each station. Positioning parts.

As an improved solution, the screen frame positioning device includes a number of screen frame positioning plates fixedly arranged on one of the guide rails, and the screen frame positioning plate is provided with a positioning groove with an upward opening; According to some screen frame positioning bushings on the guide rail, the screen frame positioning bushings are vertically arranged; the positions of the screen frame positioning plates and the screen frame positioning bushings are corresponding;

On the described screen frame, one end consistent with the screen frame positioning plate is fixedly provided with a positioning rod; on the described screen frame, one end consistent with the described screen frame positioning sleeve is fixedly provided with a positioning pin; Between the positioning grooves, between the positioning pins and the positioning bushings of the screen frame, they can be inserted or separated at the same time.

As an improved solution, an arc-shaped transition portion is provided at the opening of the positioning groove, and the positioning rod is a cylindrical structure;

The opening of the inner hole of the positioning sleeve of the screen frame is provided with an arc-shaped flaring part, and the end of the positioning pin is provided with rounded corners.

As an improved solution, the lifting device includes a vertically arranged lead screw and a threaded sleeve threaded on the lead screw, one end of the lead screw is arranged on the bearing seat through bearing rotation, and the lead screw The other end of the shaft is connected to the power output shaft of the servo motor through a coupling, the bearing seat and the servo motor are fixedly arranged on the running platform frame, the signal input end of the servo motor is connected to the signal processing unit The signal output terminal is electrically connected;

The outer circumferential surface of the threaded sleeve is fixedly provided with a lifting plate, the tool holder frame is fixedly arranged between the two lifting plates, the two ends of the lifting plate are respectively fixed with a first sliding sleeve, two The first sliding sleeves are all slidably sleeved on the first light rod, and the first light rod is fixedly arranged on the treadmill frame through the light rod fixing seats at both ends thereof.

As an improved solution, the scraper driving device includes a stepper motor fixedly arranged on the running platform frame and two multi-ribbed conveyor belts connected together with the stepper motor, and the two multi-ribbed belts The conveyor belts are connected through transmission shafts, and the signal input end of the stepping motor is electrically connected with the signal output end of the signal processing unit.

As an improved solution, the scraper device includes a knife holder, and two scrapers are arranged in parallel on the inner side of the knife holder, and the upper parts of the two scrapers are hinged together by two connecting rods, and the two connecting rods fixedly arranged together by crossbeams, and the two ends of the crossbeams are respectively fixedly arranged on the two ribbed conveyor belts;

Both sides of the tool rest are provided with second sliding sleeves, and the second sliding sleeves are slidably set on the second light rod, and the two ends of the second light rod are fixedly arranged on the two ends of the tool rest frame. end.

As an improved solution, along the running direction of the knife rest, the front and rear parts of the knife rest are fixed with a scraper angle adjustment device, and the scraper angle adjustment device includes a blade fixed on the knife rest The fixed plate is provided with a threaded hole, and the threaded hole is threaded with an adjusting bolt, and the adjusting bolt points to the scraper.

As an improved solution, the scraper includes a knife handle, a knife plate and a knife edge fixedly arranged together in sequence, the upper part of the knife handle is hinged with the connecting rod, and the upper part of the knife plate is along its length direction A cross bar is fixedly arranged, and the two ends of the cross bar are rotatably arranged on the knife rest.

As an improved solution, along the traveling direction of the printing machine, limit wheels are provided on both inner sides of the treadmill frame for horizontal rotation, and the limit wheels are in rolling contact with the side surfaces of the guide rails.

The running platform flat screen printing machine provided by the present invention can realize effective and accurate running and stopping actions when walking between the working stations because the running platform station positioning device is correspondingly arranged between the running platform frame and the guide rail. Realize the initial positioning of the screen frame while ensuring the running stability of the running platform flat screen printing machine;

The screen frame positioning device correspondingly installed between the screen frame and the guide rail enables the screen frame to be accurately positioned on each station under the drive of the lifting device, ensuring the positioning accuracy of the running platform flat screen printing machine;

Moreover, the running device, the lifting device and the scraper driving device maintain the independence of their operation relative to each other, and are all coordinated and controlled by the signal processing unit, which further ensures the running stability and accuracy of the running platform flat screen printing machine. It not only guarantees product quality but also improves production efficiency.

Description of drawings

Fig. 1 is a schematic structural view of a treadmill flat screen printing machine provided by an embodiment of the present invention;

Fig. 2 is the A direction view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 2;

Fig. 4 is the right view of Fig. 1;

Fig. 5 is the back view of Fig. 1;

Fig. 6 is a schematic structural view of a screen frame positioning device provided by an embodiment of the present invention;

Fig. 7 is the C direction view of Fig. 6;

Figure 8 is an enlarged view of part D in Figure 6;

Figure 9 is an enlarged view of part E of Figure 6;

Fig. 10 is a schematic structural diagram of a lifting device provided by an embodiment of the present invention;

Fig. 11 is a schematic structural view of a scraper device provided by an embodiment of the present invention;

Fig. 12 is a schematic structural view of a scraper provided by an embodiment of the present invention;

In the figure: 1- guide rail, 2- running platform, 21- limit wheel, 3- traveling device, 31- roller, 32- driving motor, 4- positioning device for running platform, 41- proximity switch, 42- station Positioning piece, 5-lifting device, 51-lead screw, 52-thread sleeve, 53-bearing seat, 54-coupling, 55-servo motor, 56-lifting plate, 57-the first sliding sleeve, 58-the first Light bar, 59-light bar fixing seat, 6-knife holder frame, 61-screen frame, 62-second sliding sleeve, 63-second light bar, 7-net frame positioning device, 71-screen frame positioning plate, 711 -Positioning groove, 72-Field frame positioning bushing, 73-Film frame positioning rod, 74-Film frame positioning pin, 8-Scraper driving device, 81-Second stepper motor, 82-Vyrix conveyor belt, 83-Drive shaft , 9-scraper device, 91-knife holder, 92-scraper, 921-handle, 922-bar, 923-knife plate, 924-blade, 93-connecting rod, 94-beam, 95-scraper angle adjustment device, 951-fixing plate, 952-adjusting bolt, 10-signal processing unit.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The running platform flat screen printing machine provided by the embodiment of the present invention includes a running platform frame that can walk along the guide rails on both sides of the working platform. Both sides of the running platform frame are provided with walking devices for driving the printing machine to walk, wherein:

There is a running station position positioning device between the running platform frame and the two guide rails, a knife holder frame is installed inside the running platform frame, a screen frame is installed on the inner side of the knife holder frame, and a screen frame positioning is provided between the screen frame and the guide rails. Device, the scraper device driven by the scraper drive device is installed slidingly on the knife holder frame, and the two sides of the treadmill frame are respectively equipped with lifting devices for driving the screen frame and the scraper device to rise or fall;

The signal output end of the treadmill station positioning device is electrically connected to the signal processing unit, and the signal output end of the signal processing unit is respectively electrically connected to the signal input ends of the walking device, the lifting device and the scraper driving device.

Fig. 1 to Fig. 5 collectively show the structural schematic diagram of the running platform flat screen printing machine provided by the embodiment of the present invention. For the convenience of description, this figure only provides the structural parts related to the present invention.

The treadmill flat screen printing machine includes a treadmill frame 2 that can walk along the guide rails 1 on both sides of the working platform, and both sides of the treadmill frame 2 are provided with a walking device 3 for driving the printing machine to walk. In this embodiment, the walking The bottom of the device 3 is provided with at least two rollers 31 that can walk on the guide rail 1, and the walking device 3 is also provided with a first stepping motor 32 that drives the rollers 31 to walk. Wherein:

A treadmill station positioning device 4 is provided between the treadmill frame 2 and the two guide rails 1, a knife rest frame 6 is arranged in the treadmill frame 2, and a net frame 61 is arranged on the inner side of the knife rest frame 6, and the net frame 61 and A screen frame positioning device 7 is provided between the guide rails 1, a scraper device 9 driven by a scraper drive device 8 is slid on the knife holder frame 6, and a screen frame 61 and a scraper device 9 for driving a screen frame 61 and a scraper device 9 are respectively provided on both sides of the treadmill frame 2. Lifting device 5 for raising or lowering;

The signal output end of the treadmill station positioning device 4 is electrically connected to the signal processing unit 10, and the signal output end of the signal processing unit 10 is electrically connected to the signal input end of the walking device 3, the lifting device 5 and the scraper driving device 8 respectively.

After adopting this structure, the running device 3 and the treadmill station positioning device 4 provided with the first stepping motor 32 can make the treadmill 2 walk between the stations under the control of the signal processing unit 10. Both can realize effective and accurate stop action, and realize the initial positioning of the screen frame 61 while ensuring the running stability of the treadmill flat screen printing machine; and the screen frame positioning device correspondingly arranged between the screen frame 61 and the guide rail 1 7, so that the screen frame 61 can be accurately positioned on each station under the drive of the lifting device 5, ensuring the positioning accuracy of the running platform flat screen printing machine; and the walking device 3, the lifting device 4 and the scraper driving device 8 The independence of their operation is maintained relative to each other, and they are all coordinated and controlled by the signal processing unit 10, which further ensures the smoothness and accuracy of the running platform flat screen printing machine, which not only guarantees product quality but also improves production efficiency.

In this embodiment, the treadmill station positioning device 4 includes a proximity switch 41 fixedly arranged on one side of the treadmill frame 2, and a plurality of work stations fixedly arranged between each station on the guide rail 1 corresponding thereto. Bit locator 42. In this way, when the treadmill moves to the next station, after the proximity switch 41 detects the station locator 42, it sends a detection signal to the signal processing unit 10, and the signal processing unit 10 sends a control signal to the first stepper motor 32 to make it stop running immediately, which ensures the running stability of the platform flat screen printing machine, and can also realize the preliminary positioning of the screen frame 61 to ensure the accuracy of its positioning.

In this embodiment, as shown in Figures 6 to 9, the screen frame positioning device 7 includes a number of screen frame positioning plates 71 fixedly arranged on a guide rail 1, and the screen frame positioning plate 71 is provided with a positioning groove 711 with an upward opening. Fixedly arranged on some screen frame positioning bushings 72 on another guide rail 1, wherein the screen frame positioning bushings 72 are vertically arranged; the positions of the screen frame positioning plates 71 and the screen frame positioning bushings 72 are corresponding;

On the screen frame 61, an end consistent with the screen frame positioning plate 71 is fixedly provided with a positioning rod 73; on the screen frame 61, an end consistent with the screen frame positioning sleeve 72 is fixedly provided with a positioning pin 74; between the positioning rod 73 and the positioning groove 711 Can be inserted or separated simultaneously between the positioning pin 74 and the screen frame positioning bushing 72.

After adopting the positioning method combining the rod-groove fit and the hole-shaft fit, the positioning accuracy of the screen frame 61 at each station is guaranteed, which improves the accuracy of printing or color registration of the treadmill flat screen printing machine, and also Fast positioning can be achieved.

In this embodiment, an arc-shaped transition portion is provided at the opening of the positioning groove 711, and the positioning rod 73 is arranged in a cylindrical structure; when positioning, the positioning rod 73 can be slid to the position along the arc-shaped transition portion of the positioning groove 711. In the slot 711, even if the positioning rod 73 is not fully aligned with the positioning slot 711, it can be positioned smoothly; the opening of the inner hole of the screen frame positioning sleeve 72 is provided with an arc flared portion, and the end of the positioning pin 74 If it is made into rounded corners, the positioning pin 74 can slide the screen frame along the arc-shaped flaring part of the positioning sleeve 72 to the inner cavity of the positioning sleeve 72 of the screen frame during positioning to complete positioning, even if the positioning pin 74 is not positioned with the screen frame. The sleeve 72 is perfectly aligned and can be positioned smoothly. After adopting this structure, it can not only ensure the positioning efficiency of the screen frame, but also prevent the collision caused by the positional deviation between the upper and lower positioning parts, resulting in safety accidents and reduce safety hazards.

In this embodiment, as shown in FIG. 10 , the lifting device 5 includes a vertically arranged lead screw 51 and a threaded sleeve 52 threaded on the lead screw 51 , and one end of the lead screw 51 is rotatably arranged on a bearing seat 53 through a bearing. , the other end of the lead screw 51 is connected to the power output shaft of the servo motor 55 through a coupling 54, the bearing block 53 and the servo motor 55 are all fixedly arranged on the treadmill frame 2, and the signal input end of the servo motor 55 is connected to the control unit 10 The signal output terminal is electrically connected;

The outer peripheral surface of the threaded sleeve 52 is fixedly provided with a lifting plate 56, and the tool holder frame 6 is fixedly arranged between the two lifting plates 56, and the two ends of the lifting plate 56 are fixedly provided with a first sliding sleeve 57, and the two first sliding sleeves The sleeves 57 are all slidably sleeved on the first light rod 58, and the first light rod 58 is fixedly arranged on the treadmill frame 2 through the light rod fixing seats 59 at both ends thereof. The lifting device 5 adopts the transmission method that the servo motor 55 directly drives the lead screw 51 to control the lifting of the tool holder frame 6 and the screen frame 61, which not only improves its transmission accuracy, but also improves the transmission efficiency, so that the screen frame 61 and the slide are arranged on the tool holder frame. The scraper device 8 on the 6 can quickly and accurately realize the lifting at the same time; and the use of the light rod-sliding sleeve type guide device, while ensuring its guide accuracy, is more convenient for its maintenance and maintenance.

In this embodiment, the scraper driving device 8 includes a second stepper motor 81 fixedly arranged on the treadmill frame 2 and two multi-ribbed conveyor belts 82 that are drive-connected to the second stepper motor 81. The transmission belts 82 are connected by transmission shafts 83 , and the signal input end of the second stepping motor 81 is electrically connected with the signal output end of the signal processing unit 10 . After adopting this structure, under the control of the control signal of the signal processing unit 10, when the screen frame positioning device 7 completes the positioning, the signal control unit 10 sends a control signal to the scraper driving device 8, so that it can drive the scraper quickly and accurately. Device 9 scrapes the silk screen in screen frame 61 to carry out printing operation.

In this embodiment, as shown in Figure 11, the scraper device 9 includes a knife holder 91, two scrapers 92 are arranged in parallel on the inner side of the knife holder 91, and the tops of the two scrapers 92 are hinged together by two connecting rods 93, and the two scrapers 92 are hinged together. The connecting rods 93 are fixedly arranged together by a crossbeam 94, and the two ends of the crossbeam 94 are respectively fixedly arranged on two ribbed conveyor belts 82;

Both sides of the tool holder 91 are provided with second sliding sleeves 62 , the second sliding sleeves 62 are slidably sleeved on the second light rod 63 , and the two ends of the second light rod 63 are fixedly arranged on the two ends of the tool holder frame 6 .

Before work, the dye is poured between the two scrapers 92. During the process, under the drive of the scraper driving device 8, the multi-ribbed conveyor belt 82 drives the crossbeam 94 to drive the two scrapers 92 hinged with the connecting rod 93 and the knife holder 91 Slide along the axial direction of the second light bar 63, so that the two scrapers 92 can print the fabric at the same time. During the return trip, the scraper 92 located at the back along its running direction will collect the remaining dyes to the initial position to facilitate the next printing. , which not only ensures the printing quality of the fabric, but also improves the printing efficiency.

In this embodiment, along the running direction of the knife rest 91, the front and rear parts of the knife rest 91 are fixedly equipped with a scraper angle adjustment device 95, and the scraper angle adjustment device 95 includes a fixed plate 951 fixedly arranged on the knife rest 91. , the fixing plate 951 is provided with a threaded hole, the threaded hole is connected with an adjusting bolt 952 , and the adjusting bolt 952 points to the scraper 92 . After adopting this structure, the degree of screwing in and out of the adjusting bolts 952 on both sides of the knife holder 91 can be adjusted to adjust the inclination angle of the scraper 92 during work and the return stroke, and then adjust the alignment of the scraper 92 to the net during the process. The pressure of the silk screen in the frame 61 is used to control the quality of the printing and whether to scrape the screen for a second time when it collects the remaining dye in the return journey.

In this embodiment, the scraper 92 includes a knife handle 921, a knife plate 923 and a blade 924 fixedly arranged together in sequence, the upper part of the knife handle 921 is hinged with the connecting rod 93, and the upper part of the knife plate 923 is fixedly arranged along its length direction. There is a cross bar 922 , and the two ends of the cross bar 922 are rotatably arranged on the knife rest 91 . The scraper 92 is provided with a split structure, which not only facilitates its installation on the knife holder 91, but also facilitates its cleaning after long-term use. After a long period of work and wear, only the blade 924 needs to be replaced. There is no need to replace the entire scraper 92, which not only reduces waste, but also reduces maintenance time, and ensures the smooth progress of production activities. The two ends of the cross bar 922 are rotated and set on the knife holder 91, so that the two scrapers 92 can be linked during work. , thereby driving the knife rest 91 to run with it, facilitating the angle conversion during its process and return, and also keeping the same angles in its process and return, which improves its work efficiency.

In this embodiment, along the traveling direction of the printing machine, both sides of the running platform frame 2 are horizontally rotated to be provided with limiting wheels 21. The limit wheel, the limit wheel 21 is in rolling contact with the side of the guide rail 1. Setting the limit wheel 21 can ensure that when the running platform 2 walks along the guide rail 1 under the driving of the walking device 3, there will be no deviation phenomenon due to quick start or the gap between the guide rail 1 and the running platform 2 in the horizontal direction, so that it will not move along the guide rail. 1 Move steadily to the next station to ensure its walking accuracy.

For easy understanding, the following is the working process of the treadmill flat screen printing machine:

Before working, the dye is poured onto the screen between the two spatulas 92;

After pressing the start button on the running platform frame 2, the running device 3 drives the printing machine to move forward along the guide rail 1 under the drive of the first stepping motor 32. When the proximity switch 41 in the positioning device 4 of the running platform detects When the station positioning member 42 arranged on the guide rail 1 sends a detection signal to the signal processing unit 10, the signal processing unit 10 sends a control signal to the first stepping motor 32, and the first stepping motor 32 stops working;

Then, the signal processing unit 10 sends a control signal to the lifting device 5, and the lead screw 51 rotates rapidly under the drive of the servo motor 55, driving the lifting plate 56 on the threaded sleeve 52 to move downward along the axial direction of the first light rod 58 so as to drive the rotation The screen frame 61 that is installed on the knife rest frame 6 moves downwards, when the screen frame positioning rod 73 and the screen frame positioning shaft 74 in the screen frame positioning device 7 are respectively inserted into the positioning groove 711 of the screen frame positioning plate 71 and the screen frame positioning After the axle sleeve 72, the screen frame 61 continues to descend, and when reaching the set position, the servo motor 55 stops working;

Then, the signal processing unit 10 sends a control signal to the scraper driving device 8, and the second stepper motor 81 drives two ribbed conveyor belts 82 to move in the same direction and at the same speed, and the scraper 92 positioned at the back along its running direction is to face the screen frame 61. The inner screen is scraped and printed;

When the scraper device 9 arrives at the other end of the treadmill frame 2, the signal processing unit 10 sends a control signal to control the second stepper motor 81 to reverse, and drives the scraper device back, so that another scraper 92 collects the remaining dye to the initial position (The user can adjust the scraper angle adjustment device 95 in advance according to the needs of the printing process, so as to control the angle of the scraper 2 during the return trip, so that it can perform a second scrape on the screen during the return trip), and the lifting device 5 drives the knife holder at the same time The frame 6 raises the screen frame 61 and the scraper device 9 simultaneously, and when the scraper device 9 is reset, the second stepping motor 81 stops working;

At the same time, the traveling device 3 drives the printing machine to move to the next station.

The entire walking and printing process realizes fully automatic control, which not only ensures product quality, but also improves production efficiency, reduces the use of human resources, and reduces production costs.

The running platform flat screen printing machine provided by the present invention can realize effective and accurate running and stopping actions when walking between the working stations because the running platform station positioning device is correspondingly arranged between the running platform frame and the guide rail. Realize the initial positioning of the screen frame while ensuring the running stability of the running platform flat screen printing machine;

The screen frame positioning device correspondingly installed between the screen frame and the guide rail enables the screen frame to be accurately positioned on each station under the drive of the lifting device, ensuring the positioning accuracy of the running platform flat screen printing machine;

Moreover, the running device, the lifting device and the scraper driving device maintain the independence of their operation relative to each other, and are all coordinated and controlled by the signal processing unit, which further ensures the running stability and accuracy of the running platform flat screen printing machine. It not only guarantees product quality but also improves production efficiency.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. a sliding table flat screen printing machine, comprises the treadmill framework can walked along the guide rail of workbench both sides, and the both sides of described treadmill framework are equipped with the running gear for driving printing machine to walk, and it is characterized in that:

Treadmill station positioner is provided with between described treadmill framework and two described guide rails, knife rest frame is provided with in described treadmill framework, the inner side of described knife rest frame is rotated and is provided with screen frame, screen frame positioner is provided with between described screen frame and described guide rail, described knife rest upper slide of frame moves the doctor blade device be provided with by scraping driving device for cutter driving, and the both sides of described treadmill framework are respectively equipped with the lowering or hoisting gear for driving described screen frame and doctor blade device to rise or decline;

The signal output part electrical connection signal processing unit of described treadmill station positioner, the signal output part of described signal processing unit respectively with described running gear and described lowering or hoisting gear and described in scrape driving device for cutter signal input part be electrically connected.

2. sliding table flat screen printing machine as claimed in claim 1, it is characterized in that: described treadmill station positioner comprises the proximity switch of the side being fixedly installed on described treadmill framework, and be fixedly installed on some station keepers of each station on the described guide rail that corresponds.

3. sliding table flat screen printing machine as claimed in claim 1 or 2, is characterized in that: described screen frame positioner comprises the some screen frame location-plates be fixedly installed on a described guide rail, and described screen frame location-plate is provided with the locating slot of opening upwards; Be fixedly installed on the some screen frame positioning shaft sleeves on guide rail described in another root, described screen frame positioning shaft sleeve is vertically arranged; Described screen frame location-plate is corresponding with the position of described screen frame positioning shaft sleeve;

One end consistent with described screen frame location-plate on described screen frame is fixed with backstay; One end consistent with described screen frame positioning shaft sleeve on described screen frame is fixed with alignment pin; Can insert simultaneously or be separated simultaneously between described backstay with described locating slot, between described alignment pin with described screen frame positioning shaft sleeve.

4. sliding table flat screen printing machine as claimed in claim 3, it is characterized in that: the opening part of described locating slot is provided with curved transition sections, described backstay is cylindrical structural;

The bore openings place of described screen frame positioning shaft sleeve is provided with arc expansion mouth, and the end of described alignment pin is provided with fillet.

5. sliding table flat screen printing machine as claimed in claim 1, it is characterized in that: described lowering or hoisting gear comprises the vertical leading screw arranged and the thread bush be threaded on described leading screw, one end of described leading screw is rotated by bearing and is arranged on bearing block, the other end of described leading screw is connected with the power output shaft of servomotor by shaft coupling, described bearing block and described servomotor are all fixedly installed on described treadmill framework, and the signal input part of described servomotor is electrically connected with the signal output part of described signal processing unit;

The outer circumference surface of described thread bush is fixed with lifter plate, described knife rest frame is fixedly installed between two described lifter plates, the two ends of described lifter plate are fixed with the first sliding sleeve respectively, two described first sliding sleeves are all slidably located on the first feed rod, and described first feed rod is fixedly installed on described treadmill framework by the feed rod holder at its two ends.

6. sliding table flat screen printing machine as claimed in claim 1, it is characterized in that: described in scrape driving device for cutter and comprise the stepper motor that is fixedly installed on described treadmill framework and wedge conveyer belt more than two together with being in transmission connection with described stepper motor, article two, connected by transmission shaft driven between described many wedges conveyer belt, the signal input part of described stepper motor is electrically connected with the signal output part of described signal processing unit.

7. sliding table flat screen printing machine as claimed in claim 6, it is characterized in that: described doctor blade device comprises knife rest, the inner side of described knife rest is parallel is provided with two scrapers, the top of two described scrapers is hinged by two connecting rods, two described connecting rods are fixedly installed together by crossbeam, and the two ends of described crossbeam are fixedly installed on two described many wedges conveyer belts respectively;

The both sides of described knife rest are equipped with the second sliding sleeve, and described second sliding sleeve is slidably located on the second feed rod, and the two ends of described second feed rod are fixedly installed on the two ends of described knife rest frame.

8. sliding table flat screen printing machine as claimed in claim 7, it is characterized in that: along the traffic direction of described knife rest, the front portion of described knife rest and rear portion are all fixed with scraper angle adjusting device, described scraper angle adjusting device comprises the fixed head be fixedly installed on described knife rest, described fixed head is provided with screwed hole, and described screwed hole has been threaded adjusting bolt.

9. sliding table flat screen printing machine as claimed in claim 8, it is characterized in that: described scraper comprises the handle of a knife, knife plate and the blade that are fixedly installed successively together, top and the described connecting rod of described handle of a knife are hinged, the top of described knife plate is fixed with cross bar along its length, and the two ends of described cross bar are rotated and are arranged on described knife rest.

10. sliding table flat screen printing machine as claimed in claim 1, is characterized in that: along the direct of travel of described printing machine, described treadmill framework two inside all horizontally rotate and be provided with position-limited wheel, the side Structure deformation of described position-limited wheel and described guide rail.