阅读说明：本技术 一种非接触式喷墨画线设备及方法 (Non-contact ink-jet line drawing equipment and method ) 是由 马风军 陈宗辉 胡其哲 柯勇兵 于 2020-03-31 设计创作，主要内容包括：本发明涉及一种非接触式喷墨画线设备及方法,喷墨画线设备包括：工作台、送料装置、画线装置、驱动装置、照明装置、定位装置和处理器；送料装置安装在工作台上,驱动装置安装在工作台上,且驱动装置上安装有画线装置；工作台包括依次相邻的上料区域、画线区域和烘干出料区域,照明装置安装在工作台上且位于画线区域的下方,定位装置安装在画线区域的上方,定位装置能够确定布料所在画线区域的位置,在照明装置的照射下,画线区域内没有布料的位置将会是明亮的,而有布料的位置会是相对较黑暗有阴影,阴影的轮廓即为布料的轮廓,定位装置根据阴影的轮廓能够精确的定位布料,从而实现高精度的画线要求。(The invention relates to a non-contact ink-jet line drawing device and a method, wherein the ink-jet line drawing device comprises: the line drawing device comprises a workbench, a feeding device, a line drawing device, a driving device, a lighting device, a positioning device and a processor; the feeding device is arranged on the workbench, the driving device is arranged on the workbench, and the line drawing device is arranged on the driving device; the workstation is including consecutive material loading region, the setting-out is regional and stoving ejection of compact region, lighting device installs on the workstation and is located the regional below of setting-out, positioner installs the top in the setting-out region, positioner can confirm the regional position of cloth place setting-out, under lighting device's irradiation, the position that does not have the cloth in the setting-out region will be bright, and the position that has the cloth can be relative dark there is the shadow, the profile of shadow is the profile of cloth promptly, positioner can be accurate location cloth according to the profile of shadow, thereby realize the setting-out requirement of high accuracy.)

1. A non-contact ink jet line marking apparatus, comprising: the line drawing device comprises a workbench, a feeding device, a line drawing device, a driving device, a lighting device, a positioning device and a processor;

the feeding device is installed on the workbench, the driving device is installed on the workbench, and the line drawing device is installed on the driving device;

the workbench comprises a feeding area, a line drawing area and a drying and discharging area which are adjacent in sequence, the illuminating device is installed on the workbench and located below the line drawing area, the positioning device is installed above the line drawing area, and the positioning device can determine the position of the line drawing area where the cloth is located;

the feeding device can transmit the cloth in the feeding area to the line drawing area and the drying discharging area, and the processor can control the line drawing device to move according to the set track at any position in the line drawing area.

2. A non-contact ink jet line striping apparatus according to claim 1, wherein said drive means is a robot and said line striping means is mounted at the end of said robot.

3. A non-contact ink jet line striping apparatus as claimed in claim 2, wherein said robot comprises, in series, a mounting base, at least one first rotating arm, a second rotating arm and a lifting bar;

the installation base is fixedly installed on the workbench, one end of the first rotating arm is connected with the installation base in a rotating mode, the other end of the first rotating arm is connected with one end of the second rotating arm in a rotating mode, and the second rotating arm is movably connected with the lifting rod.

4. A non-contact ink jet line striping apparatus according to claim 3, wherein said line striping apparatus comprises a nozzle, an ink jet mount, a control valve and a dye container;

the nozzle with the control valve is all installed on the inkjet base, the dye container pass through the control valve with the nozzle links to each other, the inkjet base fixed mounting be in on the lifter.

5. A non-contact inkjet line striping apparatus according to any one of claims 1 to 3, wherein said feed means comprises: a belt, a drum and a motor;

the two ends of the workbench are respectively provided with the roller, the belt is arranged on the workbench through the two rollers, and the motor can drive at least one roller to rotate.

6. A non-contact ink jet line striping apparatus as claimed in claim 5, wherein said belt is of transparent material.

7. A non-contact inkjet line striping apparatus according to any one of claims 1 to 3 wherein said positioning means comprises: a camera and an image processing unit;

the camera is arranged above the line drawing area and is in communication connection with the image processing unit.

8. A method of non-contact inkjet line marking, the method being based on a non-contact inkjet line marking apparatus arrangement as claimed in any one of claims 1 to 7, the method including:

s1: the positioning device positions the cloth in the line drawing area and confirms the position information of the cloth in the line drawing area;

s2: the processor controls the driving device according to the position information of the cloth in the line drawing area, and then drives the line drawing device to draw lines on the cloth according to a set track.

9. The method according to claim 8, wherein the step S1 specifically includes:

s11: the lighting device is used for lighting the line drawing area;

s12: the camera takes pictures of the line drawing area to obtain a picture sample;

s13: and the image processing unit positions the cloth in the line drawing area according to the photo proof and confirms the position information of the cloth in the line drawing area.

Technical Field

The invention relates to the field of line drawing equipment, in particular to non-contact ink-jet line drawing equipment and a non-contact ink-jet line drawing method.

Background

In the manufacturing process of leather such as shoes, balls and the like, the leather needs to be drawn, then the leather is processed according to the drawing lines, in the prior art, a lamp source in ink-jet drawing equipment is arranged above the cloth to be drawn, and after the lamp source illuminates the cloth, a positioning mechanism in the drawing equipment shoots and positions the cloth. The lamp source is arranged above or at two sides of the cloth, so that the situation of light reflection or shadow is easy to occur, and the situation that the accuracy of the drawn line cannot meet the requirement due to inaccurate positioning occurs.

Disclosure of Invention

Technical problem to be solved

The invention provides non-contact ink-jet line drawing equipment and a non-contact ink-jet line drawing method, and aims to solve the problem that the line drawing precision cannot meet the requirement due to inaccurate positioning in the prior art.

(II) technical scheme

In order to solve the above problems, the present invention provides a non-contact ink jet line marking apparatus, comprising: the line drawing device comprises a workbench, a feeding device, a line drawing device, a driving device, a lighting device, a positioning device and a processor;

the feeding device is installed on the workbench, the driving device is installed on the workbench, and the line drawing device is installed on the driving device;

the workbench comprises a feeding area, a line drawing area and a drying and discharging area which are adjacent in sequence, the illuminating device is installed on the workbench and located below the line drawing area, the positioning device is installed above the line drawing area, and the positioning device can determine the position of the line drawing area where the cloth is located;

the feeding device can transmit the cloth in the feeding area to the line drawing area and the drying discharging area, and the processor can control the line drawing device to move according to the set track at any position in the line drawing area.

Preferably, the driving device is a mechanical arm, and the line drawing device is arranged at the tail end of the mechanical arm.

Preferably, the manipulator comprises a mounting base, at least one first rotating arm, a second rotating arm and a lifting rod which are connected in sequence;

the installation base is fixedly installed on the workbench, one end of the first rotating arm is connected with the installation base in a rotating mode, the other end of the first rotating arm is connected with one end of the second rotating arm in a rotating mode, and the second rotating arm is movably connected with the lifting rod.

Preferably, the line marking device comprises a nozzle, an ink jet base, a control valve and a dye container;

the nozzle with the control valve is all installed on the inkjet base, the dye container pass through the control valve with the nozzle links to each other, the inkjet base fixed mounting be in on the lifter.

Preferably, the feeding device comprises: a belt, a drum and a motor;

the two ends of the workbench are respectively provided with the roller, the belt is arranged on the workbench through the two rollers, and the motor can drive at least one roller to rotate.

Preferably, the belt is made of transparent materials.

Preferably, the positioning device comprises: a camera and an image processing unit;

the camera is arranged above the line drawing area and is in communication connection with the image processing unit.

Preferably, the present invention also provides a method of non-contact inkjet line marking, the method being based on a non-contact inkjet line marking apparatus arrangement as described above, the method comprising:

s1: the positioning device positions the cloth in the line drawing area and confirms the position information of the cloth in the line drawing area;

s2: the processor controls the driving device according to the position information of the cloth in the line drawing area, and then drives the line drawing device to draw lines on the cloth according to a set track.

Preferably, the step S1 specifically includes:

s11: the lighting device is used for lighting the line drawing area;

s12: the camera takes pictures of the line drawing area to obtain a picture sample;

s13: and the image processing unit positions the cloth in the line drawing area according to the photo proof and confirms the position information of the cloth in the line drawing area.

(III) advantageous effects

The invention is to arrange the lighting device below the line drawing area, namely below the cloth. When the cloth is positioned, under the irradiation of the lighting device, the position without the cloth in the line drawing area is bright, the position with the cloth is dark relatively, the dark contour is the contour of the cloth, and the positioning device can accurately position the cloth according to the dark contour, so that the high-precision line drawing requirement is realized.

Drawings

Fig. 1 is a front elevation view of a non-contact ink jet line striping apparatus of the present invention;

fig. 2 is a schematic overall view of a non-contact ink jet line striping apparatus of the present invention;

FIG. 3 is a schematic view of the robot and line marking apparatus of the present invention in assembly;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a flow chart of a non-contact ink jet line marking method of the present invention;

fig. 6 is a schematic flow chart of the positioning device for positioning the cloth according to the present invention.

[ description of reference ]

1: a work table; 11: an oven; 2: a feeding device; 21: a belt; 22: a drum; 3: a manipulator; 31: installing a base; 32: a first rotating arm; 33: a second rotating arm; 34: a lifting rod; 4: a line drawing device; 41: a nozzle; 42: an inkjet base; 43: a control valve; 44: a dye container; 5: an illumination device; 6: and a positioning device.

Detailed Description

For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The present invention provides a non-contact ink jet line marking apparatus comprising: the line drawing device comprises a workbench 1, a feeding device 2, a line drawing device 4, a driving device, a lighting device 5, a positioning device 6 and a processor.

The feeding device 2 is arranged on the workbench 1, the driving device is arranged on the workbench 1, and the line drawing device 4 is arranged on the driving device. Workstation 1 is including consecutive material loading region, the setting-out region is regional and stoving ejection of compact region, lighting device 5 installs on workstation 1 and is located the regional below of setting-out, positioner 6 installs in the regional top of setting-out, positioner 6 can confirm the regional position of cloth place setting-out, lighting device 5 is when throwing light to the setting-out region, the place that has the cloth on the setting-out region is a slice shadow under positioner 6's detection, the profile of shadow is exactly the profile of cloth, set up lighting device 5 and be more favorable to positioner 6 to fix a position the cloth in the setting-out region in the regional below of setting-out, make the location more accurate, thereby make the precision of setting-out obtain effectual improvement. Meanwhile, the cloth is automatically positioned through the matching of the positioning device 6 and the illuminating device 5, manual positioning is not needed, or the position of the cloth on the line drawing device 4 is not limited. Only need place the cloth on material feeding unit 2, wait that material feeding unit 2 transports the cloth to the setting-out region, positioner 6 can accomplish the location to the cloth, provides the basis for subsequent automatic setting-out. The feeding device 2 can transmit the cloth in the feeding area to the line drawing area and the drying and discharging area, and the processor can control the line drawing device 4 to move at any position of the line drawing area according to a set track. Specifically, the processor controls the driving device to move on the cloth according to a set track according to the result of the positioning device 6 after positioning the cloth, and further drives the line drawing device 4 to draw a line on the cloth according to the set track. The whole process is completed automatically.

In a preferred embodiment the drive means may be a robot 3 and the line striping apparatus 4 is mounted to the end of the robot 3. The manipulator 3 comprises a mounting base 31, at least one first rotating arm 32, a second rotating arm 33 and a lifting rod 34 which are connected in sequence. The mounting base 31 is fixedly mounted on the workbench 1, in a preferred embodiment, there is one first rotating arm 32, a plurality of mounting holes are opened on the mounting base 31, an internal threaded hole matched with the mounting holes is provided on the workbench 1, and the mounting base 31 is mounted on the workbench 1 by a fastener inserted into the internal threaded hole. Wherein, the fastener can be a bolt or a screw. The manipulator 3 can be installed on the workbench 1 by the fastener passing through the installation hole on the installation base 31 and screwing the fastener into the internal thread hole at the corresponding position on the workbench 1, and meanwhile, the installation position of the installation base 31 on the workbench 1 is not overlapped with the position of the feeding device 2 on the workbench 1, so that the feeding work of the feeding device 2 cannot be influenced by the manipulator 3.

One end of the first rotating arm 32 is rotatably connected to the mounting base 31, and the other end of the first rotating arm 32 is rotatably connected to one end of the second rotating arm 33, specifically, the first rotating arm 32 can rotate around the mounting base 31 under the driving of the servo motor and the transmission mechanism (for example, the servo motor controls the first rotating arm 32 through the harmonic gear reducer). The other end of the first rotating arm 32 is rotatably connected to one end of the second rotating arm 33, wherein the second rotating arm 33 can rotate around the other end of the first rotating arm 32 under the cooperation of another servo motor and a transmission mechanism (for example, the servo motor controls the first rotating arm 32 through a harmonic gear reducer), the second rotating arm 33 is movably connected to the lifting rod 34 (at least including one of the connection situations that the second rotating arm 33 and the lifting rod 34 can relatively rotate or slide), when the lifting rod 34 is rotatably connected to the second rotating arm 33, the connection point of the lifting rod 34 and the second rotating arm 33 can be set in the form of a screw nut, the rotation motion of the lifting rod 34 is converted into an up-and-down motion in the vertical direction, the up-and-down motion of the lifting rod 34 in the vertical direction can be realized by controlling the rotation of the lifting rod 34, and meanwhile, if the lifting rod 34 is precisely controlled, it is also possible to provide the joint of the lift lever 34 and the second rotating arm 33 in the form of a ball screw. When the lifting rod 34 is slidably connected to the second rotating arm 33, the lifting rod 34 may be provided in the form of an electric push rod, and the vertical movement of the lifting rod 34 is directly controlled.

The mechanical arm 3 is used as a driving source for driving the line drawing device 4 to draw lines on the cloth in a line drawing area, so that error accumulation can be reduced, the requirement of high-precision line drawing is met, the mechanical arm 3 is widely applied in the prior art, the follow-up daily maintenance and repair are convenient, and the cost for replacing the mechanical arm 3 is relatively low. The non-contact ink-jet line drawing equipment can draw lines frequently for a long time and meet the high-strength working requirement.

In an alternative embodiment, the drive mechanism may be mounted on the table 1 in the form of a track, and in particular may be used in conjunction with a track mounted in the form of mutually perpendicular X, Y tracks, to enable the line marking apparatus 4 to move in any desired path in the plane of the line marking area.

Further, the line marking apparatus 4 includes a nozzle 41, an ink jet base 42, a control valve 43 and a dye container 44; the nozzle 41 and the control valve 43 are both installed on the ink-jet base 42, the dye container 44 is connected with the nozzle 41 through the control valve 43, and the ink-jet base 42 is fixedly installed on the lifting rod 34. An oven 11 is arranged above the drying and discharging area. The dye container 44 is filled with ink required for drawing, the control valve 43 is used for controlling the on-off of the ink in the dye container 44 and the nozzle 41, when the non-contact ink-jet drawing device performs drawing, the control valve 43 controls the dye container 44 to be communicated with the nozzle 41, and simultaneously the driving mechanism moves according to a set track, so that the nozzle 41 performs ink jet to perform drawing. After the line drawing action is finished, the control valve 43 controls the dye container 44 to be disconnected with the pipeline of the nozzle 41, the feeding device 2 transmits the cloth with the line drawn to the drying and discharging area, and the line drawn by the ink on the cloth is quickly dried and discharged under the action of the oven 11. The cloth is from line drawing to discharging, and whole process is consuming time weak, and production cycle is short, and efficiency obtains greatly improving.

Further, the feeding device 2 includes: a belt 21, a drum 22 and a motor. The cylinder 22 is all installed at the both ends of workstation 1, and belt 21 installs on workstation 1 through two cylinders 22, and the motor can drive at least one cylinder 22 and rotate and drive belt 21 and round the motion of cylinder 22. The cloth on the belt 21 is transmitted among the feeding area, the line drawing area and the drying and discharging area through the motor, so that automatic production is realized. Preferably, the belt 21 is made of a transparent material, and the belt 21 is made of a transparent material, so that illumination of the illumination device 5 below the line drawing area is facilitated, and a significant brightness difference exists between a position without cloth and a position with cloth on the belt 21, namely, the position without cloth on the belt 21 has a large brightness, and the position with cloth on the belt 21 has a low brightness and a shadow, so that the position with cloth or not on the belt 21 is more easily distinguished by the positioning device 6, and positioning is more accurate.

Finally, the positioning device 6 comprises: a camera and an image processing unit. The camera is arranged above the line drawing area and is in communication connection with the image processing unit, the camera sends a picture to the image processing unit after the picture is taken for the line drawing area, and the image processing unit positions the cloth in the line drawing area according to the picture and confirms the position information of the cloth in the line drawing area.

In addition, the invention also provides a non-contact ink-jet line drawing method which is implemented on the basis of the non-contact ink-jet line drawing equipment and comprises the following steps:

s1: the positioning device 6 positions the cloth in the line area and confirms the position information of the cloth in the line area.

S2: the processor controls the driving device according to the position information of the cloth in the line drawing area, and then drives the line drawing device 4 to draw a line on the cloth according to a set track.

The method realizes automatic line drawing, and because the lighting device 5 in the non-contact ink-jet line drawing equipment is arranged below the line drawing area, the positioning device 6 can more accurately position the cloth under the irradiation of the lighting device 5, so that the method can meet the high-precision requirement when the line is drawn according to the method.

Further, step S1 specifically includes:

s11: the lighting device 5 illuminates the drawing area.

S12: and the camera takes pictures of the line area to obtain a picture sample.

S13: and the image processing unit positions the cloth in the line drawing area according to the photo proof and confirms the position information of the cloth in the line drawing area.

Due to the illumination of the illuminating device 5 below the line drawing area, the positions without cloth and the positions with cloth on the belt 21 have obvious brightness difference, namely the positions without cloth on the belt 21 have high brightness, and the positions with cloth on the belt 21 have low brightness and shadows, so that the positions with cloth on the photo sample are more obviously different, the image processing unit can more easily position the cloth in the line drawing area, and the corresponding positioning is more accurate.

By combining the non-contact ink-jet line drawing method provided by the invention with the non-contact ink-jet line drawing equipment provided by the invention, the positioning device 6 can accurately position the cloth in the line drawing area, and high-precision line drawing is realized.

It should be understood that the above description of specific embodiments of the present invention is only for the purpose of illustrating the technical lines and features of the present invention, and is intended to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, but the present invention is not limited to the above specific embodiments. It is intended that all such changes and modifications as fall within the scope of the appended claims be embraced therein.