WO2014169664A1

WO2014169664A1 - Printing machine

Info

Publication number: WO2014169664A1
Application number: PCT/CN2013/088122
Authority: WO
Inventors: 王平; 金相旭; 左长云; 金婷婷; 刘聪聪
Original assignee: 合肥京东方光电科技有限公司; 京东方科技集团股份有限公司
Priority date: 2013-04-18
Filing date: 2013-11-29
Publication date: 2014-10-23
Also published as: CN103264006A

Abstract

A printing machine comprises a spraying part (10) used for spraying liquid. The spraying part (10) comprises a travelling part (120), a first tray (150) disposed right below the travelling part (120), and a weeping detection sensor (160) disposed inside the first tray (150). A length of the first tray (150) is at least equal to a sum of a length of the spraying part (10) along a travelling direction and a travelling length. The printing machine can quickly detect and discover liquid leakage, thereby avoiding damages of the device and wastes of the materials.

Description

Printing machine

Embodiments of the invention relate to a printing press. Background technique

At present, an alignment film coating machine that coats an alignment film presses an alignment film solution from a storage bottle to a discharge portion of the printing press using nitrogen gas pressure, and the ejection portion controls a flow rate through a gas valve, and then the ejection portion is oriented during the running. The membrane solution is sprayed on the rubberizing roller, thereby achieving the purpose of uniformly coating the alignment film.

However, the running portion of the alignment film printing machine may be bent and worn during the reciprocating walking process; the gas valve of the spout portion for realizing the flow control is connected through the joint, and the connection is not tight, which may result in the alignment film solution. leakage. Since the spout portion is generally at the top end of the apparatus body, the height is high and the worker does not normally see it. Therefore, when the alignment film solution leaks, the device body and the rubber roller are corroded, causing great harm. Summary of the invention

Embodiments of the present invention provide a printing press that quickly detects and detects liquid leaks, thereby avoiding damage to equipment and waste of materials.

An aspect of the present invention provides a printing machine including a spout portion for ejecting a liquid, the spout portion including a running portion, a first tray disposed directly below the running portion, and a liquid leakage detecting sensor disposed in the first tray; the length of the first tray is at least equal to a sum of a length of the ejection portion in the traveling direction and a length of the traveling.

For example, the ejection portion may further include: a joint and a second tray disposed at least directly below the joint of the joint and a liquid leakage detecting sensor disposed in the second tray.

For example, the ejection portion may include an alignment film solution supply tank, the running portion, a flow rate control valve, and a nozzle portion; the alignment film solution supply tank is connected to one end of the running portion, and the other end of the running portion One end of the flow control valve is connected through a joint, the other end of the flow control valve is connected to the nozzle portion through a joint; the second tray is configured to receive the running portion and the a flow control valve, and an alignment film solution leaking from a joint between the nozzle portion and the joint of the flow control valve.

For example, the number of the liquid leakage detecting sensors in the second tray is at least one.

For example, the number of the liquid leakage detecting sensors in the first tray is at least one.

For example, the number of the liquid leakage detecting sensors in the first tray is two, and is placed at both ends of the first tray in the traveling direction.

For example, the first tray is disposed on a device body of the printing press.

For example, the printer may further include: a motor that controls the running of the running portion, and a controller coupled to the horse.

For example, the motor can be a servo motor. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below. It is obvious that the drawings in the following description relate only to some embodiments of the present invention, rather than to the present invention. limit.

1 is a schematic structural view of an ejection portion of an alignment film printing machine according to a first embodiment of the present invention;

2 is a schematic structural view of an alignment film printing machine including a spouting portion, a motor, and a controller according to an embodiment of the present invention;

3 is a schematic structural view of an oriented film printing machine according to Embodiment 2 of the present invention.

Reference mark:

10-spray portion; 100-joint; 110-oriented film solution supply tank; 120-walking portion; 130-flow control valve; 140-nozzle portion; 150-first tray; 160-leak detection sensor; Two trays; 180-motor; 190-controller. detailed description

The technical solutions of the embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings. It is apparent that the described embodiments are part of the embodiments of the invention, rather than all of the embodiments. Based on the described embodiments of the present invention, those of ordinary skill in the art can obtain without the need for creative labor. All other embodiments obtained are within the scope of the invention.

An embodiment of the present invention provides a printing machine. As shown in FIGS. 1 to 3, the printing machine includes an apparatus body (not shown) and a spouting portion 10, and the spouting portion 10 includes a running portion 120 and a setting. a first tray 150 directly below the running portion 120, and a liquid leakage detecting sensor 160 disposed in the first tray 150, and the length of the first tray 150 is at least equal to the traveling direction of the ejection portion 10 The sum of the length and the length of the running; the spouting portion 10 is for ejecting liquid.

It should be noted that, firstly, the running portion 120 referred to in the embodiment of the present invention has at least a transmitting function, such as a crawler conveying function, that is, driving the entire ejection portion 10 to travel in a certain direction.

Second, since the running portion 120 needs to travel back and forth to cause the entire ejection portion 10 to be unfixed, the length of the first tray 150 is set to be at least equal to the length of the ejection portion 10 in the traveling direction in the embodiment of the present invention. The sum of the lengths of the running lines can thereby receive the liquid leaking at any position of the ejection portion 10 including the running portion 120 at an arbitrary position.

Thirdly, the first tray 150 can be fixed directly under the running portion 120 by any means, and the fixing manner thereof is not limited herein so as not to affect the normal operation of the printing machine, and can be used in any The time can be used to receive the liquid leaked from the spout portion 10. Further, the width of the first tray 150 is set according to actual conditions, and is not limited herein.

Fourthly, for the liquid leakage detecting sensor 160, the principle is that when the leakage liquid received by the first tray 150 reaches a certain amount, an alarm is issued; in the embodiment of the invention, the sensing alarm is not caused by the liquid leakage detection. The amount of liquid leakage is limited, and it can be set according to the actual situation.

A specific example of a leak detection sensor is a safety leak sensor (such as model SQ4-A22-P, manufacturer: Panasonic, Japan), which consists of a sensor, a mount component, a connector, and a controller. For example, the safety leak sensor can detect leaks normally under the following conditions.

(1) Detection range: The range except for the rear of the product (the liquid must be immersed in the detection range).

(2) Setting surface material: Hard vinyl or stainless steel.

(3) Surface condition of the setting surface: Glossy surface (corresponding to a surface roughness of 0.4 mRa) and no dirt.

(4) Setting the degree of surface tilt: Horizontal plane.

In the embodiment of the present invention, when the above-mentioned safety liquid leakage sensor is used, when the chemical liquid leaks due to the wear of the pipeline and the looseness of the connection valve, the liquid leakage is immersed in the sensor area, and the sensor feeds back the signal to the controller, the controller and the apparatus body. The software connection makes the equipment alarm, and then reminds the engineering and technical personnel to carry out rapid and accurate investigation, avoiding the loss and waste of a large amount of liquid medicine, and avoiding the contamination of the equipment by the liquid medicine. The resulting loss.

An embodiment of the present invention provides a printing machine including an apparatus body and a spout portion, the spout portion including a running portion, a first tray disposed directly below the running portion, and a first tray disposed on the first tray The liquid leakage detecting sensor therein, and the length of the first tray is at least equal to the sum of the length of the ejection portion in the traveling direction and the length of the traveling. In this way, on the one hand, the first tray can receive the liquid leaking at any position of the spout portion, and on the other hand, when the leaked liquid received by the first tray reaches a certain amount, the liquid leakage detecting sensor issues an alarm, thereby the staff member It can be known that the ejection portion has leaked, so that the treatment can be performed in time, thereby avoiding a large amount of leakage, especially corrosive leakage, to damage the equipment, and also avoiding a large waste of materials.

Optionally, the number of the liquid leakage detecting sensors 160 in the first tray 150 may be at least one.

Since the running portion 120 needs to travel back and forth so that the position of the ejection portion 10 is not fixed, the corresponding first tray 150 is preferably an alignment film solution that can leak at any position of the ejection portion 10 including the running portion 120. The length of the first tray 150 in the traveling direction is relatively long. In this case, if only one liquid leakage detecting sensor 160 is provided, when the leaked alignment film solution reaches the position of the liquid leakage detecting sensor 160, the sensor is An alarm will be issued, which will result in more leakage of the alignment film solution, resulting in waste of materials.

Therefore, in the embodiment of the present invention, as shown in FIG. 1 , the number of the liquid leakage detecting sensors 160 in the first tray 150 is two, and is respectively placed on the first tray 150. Both ends of the direction of travel. Thus, neither the cost increase due to the excessive number of liquid leakage detecting sensors 160 is caused, and the leakage of the alignment film solution of the first tray 150 can be found as early as possible, and processing can be performed at the same time, thereby avoiding a large amount of waste of materials.

Embodiment 1

The embodiment is an oriented film printer comprising an apparatus body and a spouting portion 10. As shown in FIG. 1, the spouting portion 10 includes: an alignment film solution supply tank 110, a running portion 120, and a flow rate control a valve 130 and a nozzle portion 140; the alignment film solution supply tank 110 is connected to one end of the running portion 120, and the other end of the running portion 120 is connected to one end of the flow control valve 130, and the flow rate control valve The other end of 130 is connected to the nozzle portion 140.

The ejection unit 10 further includes: a first tray 150 disposed directly below the running portion 120, and a liquid leakage detecting sensor 160 disposed in the first tray 150; the liquid leakage detecting sensor The number of the devices 160 is two, and is respectively placed at both ends of the first tray 150 in the traveling direction; the length of the first tray 150 is at least equal to the length of the ejection portion 10 in the traveling direction and the length of the traveling Sum.

Here, the alignment film solution is stored in the alignment film solution supply tank 110, and the alignment film solution in the alignment film solution supply tank 110 is pressed from the supply tank to the traveling portion 120, for example, by flow control, and is controlled by flow rate. The valve 130 reaches the nozzle portion 140 to perform the ejection; the traveling portion 120 not only transports the alignment film solution in the alignment film solution supply tank 110 to the nozzle portion 140, but also has a crawler conveying function, that is, the nozzle portion 140 which is fixed in position opposite thereto Move in a certain direction. The alignment film solution in the alignment film solution supply tank 110 is uniformly discharged through a nozzle portion 140 onto a leveling roller (not shown) by the reciprocating movement of the running portion 120 in a certain direction, thereby forming an alignment film on the substrate.

In the present embodiment, the length of the first tray 150 is set to be at least equal to the sum of the length of the ejection portion 10 in the traveling direction and the length of the running, and not only the liquid which is caused by the bending and abrasion of the running portion due to the reciprocating movement can be received. Leakage, it is also possible to receive liquid leakage at any other position of the spouting portion 10, thereby avoiding damage to the device; further, two liquid leakage detecting sensors 160 are respectively disposed on two sides of the first tray 150 in the traveling direction, It is possible to find leaks in the first tray 150 as early as possible, thereby avoiding a large amount of waste of materials.

In the embodiment of the present invention, preferably, the first tray 150 is disposed on the apparatus body.

In this way, the first tray 150 can be placed directly on the top of the device without the use of other fixing measures, which is convenient to use.

Further, as shown in Fig. 2, the printing press further includes a motor 180 that controls the running of the running portion 120, and a controller 190 connected to the motor.

Preferably, the motor 180 can be a servo motor. The servo motor is used to control the running portion to travel, and the electrical signal can be converted into torque and rotational speed to control the driving object. The servo motor rotor speed is controlled by the input signal and can be quickly reacted. In the automatic control system, when used as an execution unit, it has the advantages of high motion precision, small fluctuation, relatively stable operation, and short response time; The received electrical signal is converted into an angular displacement or an angular velocity output on the electrode shaft, and is currently widely used in industrial robots and the like, which require relatively high precision such as position or torque.

Further, the ejection portion 10 further includes a joint and a second tray 170 disposed at least directly below the joint connection and a liquid leakage detecting sensor 160 disposed in the second tray 170. The second tray 170 is for receiving liquid leaking at the joint of the joint.

It should be noted here that, first, the ejection portion 10 of the present embodiment is composed of several different functional components, and some of these functional components are connected by the joint 100.

Secondly, the second tray 170 can be fixed directly under the joint of the joint by any means, and the fixing manner thereof is not limited herein so as not to affect the normal operation of the printing machine, and can be used at any time. The liquid used to receive the leak at the joint of the joint is prevailing. Further, the size of the second tray 170 is set according to the actual situation to be able to receive the liquid leaked at the joint of the joint and to make the liquid leakage detection more sensitive.

Since in the actual use, the connection of the joint often occurs that the connection is not tight and the liquid leakage is more likely to occur, in the present embodiment, the second tray 170 located at the joint of the joint and the second tray are further disposed. The leak detection sensor 160 is configured to make the leak detection at this point more sensitive, so that it can be processed in time if there is little leakage leakage at the joint of the joint. Further, in the case of the alignment film printer, the ejection unit 10 includes an alignment film solution supply tank 110, the running portion 120, the flow rate control valve 130, and the nozzle portion 140; the alignment film solution supply tank 110 and the chamber One end of the running portion 120 is connected, and the other end of the running portion 120 is connected to one end of the flow control valve 130 via a joint 100, and the other end of the flow control valve 130 is connected to the nozzle portion 140 via a joint 100.

The principle of the ejection of the alignment film solution by the ejection portion 10 is that the alignment film solution is stored in the alignment film solution supply tank 110, and the alignment film solution in the alignment film solution supply tank 110 can be pressurized from the supply tank by using nitrogen gas pressure. It is pressed to the traveling portion 120, and reaches the nozzle portion 140 through the flow rate control valve 130 to perform ejection.

In this case, the second tray 170 may be disposed directly below the junction of the running portion 120 and the flow control valve 130 and the joint between the nozzle portion 140 and the flow control valve 130; The second tray 170 is for receiving an alignment film solution leaking from the joint between the running portion 120 and the flow rate control valve 130 and the joint between the nozzle portion 140 and the flow rate control valve 130.

It should be noted that the second tray 170 may be a tray capable of simultaneously receiving the alignment film solution leaking from the joint between the running portion 120 and the flow control valve 130 and the nozzle between the nozzle portion 140 and the flow control valve 130. It is an alignment film solution that leaks at the junction of the joint between the running portion 120 and the flow control valve 130, and the connection between the nozzle portion 140 and the flow rate control valve 130. The two trays of the alignment film solution leaking at the joint of the head are not limited herein.

Optionally, the number of the liquid leakage detecting sensors 160 in the second tray 170 is at least one. Here, the number of the liquid leakage detecting sensors 160 may be selected according to the size of the second tray 170 and the number of the second trays 170; when the second tray 170 is more than one, the corresponding liquid leakage detecting sensor The number of 160 is also at least the same as the number of the second trays 170.

Embodiment 2

The present embodiment provides an alignment film printing machine. As shown in FIG. 3, the alignment film printing machine includes an apparatus body (not shown) and a spouting portion 10, and the ejection portion 10 includes an alignment film solution supply tank 110. a running portion 120, a flow control valve 130, and a nozzle portion 140; the alignment film solution supply tank 110 is connected to one end of the running portion 120, and the other end of the running portion 120 and one end of the flow control valve 130 The other end of the flow control valve 130 is connected to the nozzle portion 140 via a joint 100 by a joint 100.

The ejection unit 10 further includes: a first tray 150 disposed directly below the running portion 120; and a liquid leakage detecting sensor 160 disposed in the first tray 150; the liquid leakage detecting sensor 160 The number of the two trays is two, and is respectively placed at both ends of the first tray 150 in the traveling direction; the length of the first tray 150 is at least equal to the sum of the length of the ejection portion 10 in the traveling direction and the length of the running.

As shown in FIG. 3, the ejection portion 10 further includes: a portion directly disposed below the joint between the running portion 120 and the flow control valve 130 and the nozzle between the nozzle portion 140 and the flow control valve 130 The second tray 170 and one liquid leakage detecting sensor 160 provided in the second tray 170.

Further, the alignment film printer further includes a motor 180 coupled to the running portion 120, and a controller 190 coupled to the motor. The running portion 120 is controlled by the motor 180 to drive the ejection portion 10 to travel in a certain direction, and the alignment film solution in the alignment film solution supply tank 110 is ejected through the nozzle portion 140 to the rubber roller. Upper, thereby forming an alignment film on the substrate.

On one hand, the first tray 150 is provided to receive the liquid leaking at any position of the ejection portion 10 at any time, and two liquid leakage detecting sensors 160 are respectively disposed on two sides of the first tray 150 in the traveling direction. As soon as possible, the first tray 150 is found to have liquid leakage, thereby avoiding a large amount of waste of materials.

On the other hand, since the other end of the running portion 120 and one end of the flow control valve 130 Through the connection of the joint 100, the other end of the flow control valve 130 is connected to the nozzle portion 140 through the joint 100, and the joint connection is not tight, or the joint connection is loose after the printing machine runs for a period of time. The second tray 170 provided by the embodiment of the invention and the liquid leakage detecting sensor 160 disposed in the second tray 170 can make the liquid leakage detection at the location more sensitive.

An embodiment of the present invention provides a printing machine including an apparatus body and a spout portion, the spout portion including a running portion, a first tray disposed directly below the running portion, and a first tray disposed on the first tray a liquid leakage detecting sensor, wherein the length of the first tray is at least equal to a sum of a length of the ejection portion in the traveling direction and a length of the traveling; thus, the liquid leaking at any position of the ejection portion can be received, and when the first When the leakage liquid received by the tray reaches a certain amount, the liquid leakage detection sensor issues an alarm, thereby avoiding a large amount of leakage, especially the leakage of the liquid, which damages the equipment, and also avoids a large waste of materials. In addition, when the printing machine further includes a joint, since the joint of the joint often has a tight connection and liquid leakage is more likely to occur, the second tray and the liquid leakage are disposed directly below the joint of the joint. Detecting the sensor makes the leak detection more sensitive.

The above is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. The scope of the present invention is defined by the appended claims.

Claims

claims

1. A printing press, including an ejection part, the ejection part being used to eject liquid, wherein the ejection part includes a running part, a first tray disposed directly below the running part, and a first tray disposed on the first Liquid leakage detection sensor in the tray;

Wherein, the length of the first tray is at least equal to the sum of the length of the ejection part along the traveling direction and the traveling length.

2. The printing press according to claim 1, wherein the ejection part further includes: a joint and at least a second tray disposed directly below the connection point of the joint and a leakage liquid disposed in the second tray. Detect sensor.

3. The printing press according to claim 2, wherein the ejection part further includes an alignment film solution supply tank, a flow control valve, and a nozzle part;

Wherein, the alignment film solution supply box is connected to one end of the running part, the other end of the running part is connected to one end of the flow control valve through a joint, and the other end of the flow control valve is connected to the nozzle part. Connected by connector;

The second tray is used to receive the alignment film solution leaking from the connection between the running part and the flow control valve, and the connection between the nozzle part and the flow control valve.

4. The printing press according to claim 2 or 3, wherein the number of the liquid leakage detection sensors in the second tray is at least one.

5. The printing press according to any one of claims 1 to 4, wherein the number of the liquid leakage detection sensors in the first tray is at least one.

6. The printing press according to claim 5, wherein the number of the liquid leakage detection sensors in the first tray is two, and they are respectively placed at both ends of the first tray along the running direction. .

7. The printing press according to any one of claims 1 to 6, wherein the first tray is provided on the equipment body of the printing press.

8. The printing press according to any one of claims 1 to 6, further comprising: a motor that controls the movement of the traveling part, and a controller connected to the motor.

9. The printing press according to claim 8, wherein the motor is a servo motor.