CN211075074U

CN211075074U - Pad printing machine

Info

Publication number: CN211075074U
Application number: CN201921682475.8U
Authority: CN
Inventors: 张虎; 杨礼鹏
Original assignee: Lens Intelligent Robot Changsha Co Ltd
Current assignee: Lens Intelligent Robot Changsha Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-07-24
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a pad printing machine, include: the conveying belt assembly comprises a conveying belt, a material positioning device is arranged on the side face of the conveying belt and comprises a first telescopic device which is arranged on the side face of the conveying belt and can be stretched and retracted vertically to the belt face of the conveying belt, and the first telescopic device is used for blocking a corresponding conveying piece comprising materials from continuing conveying after the belt face perpendicular to the conveying belt extends out so as to position the corresponding conveying piece at a preset material taking position on the conveying belt in the conveying direction of the conveying belt; the pad printing assembly is arranged on the side surface of the conveyor belt assembly and is used for performing pad printing operation; a robot for transferring material in the transfer member between the pad printing assembly and a predetermined take off location. The cooperation of conveyer belt subassembly and manipulator has improved the degree of automation of material bat printing process, and first telescoping device can avoid the material to exceed and predetermine the material position of getting, can improve the reliability of material location in the direction of transfer, guarantees going on smoothly of manipulator transmission operation to improve bat printing efficiency.

Description

Pad printing machine

Technical Field

The utility model relates to a bat printing technical field, in particular to bat printing machine.

Background

At present, pad printing machines have become a main equipment for printing on the surfaces of various materials. In a typical pad printing machine, a material to be pad printed is manually placed on a pad printing assembly for pad printing. However, at present, more and more materials to be pad-printed are large in batch, the manual discharging mode is low in efficiency, the labor intensity of workers is high, the pad-printing efficiency is low, and the production requirements are difficult to meet.

Therefore, how to improve the pad printing efficiency is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a pad printing machine with high pad printing efficiency.

In order to achieve the above object, the utility model provides a following technical scheme:

a pad printer comprising:

the conveying belt assembly comprises a conveying belt, a material positioning device is arranged on the side face of the conveying belt, the material positioning device comprises a first telescopic device which is arranged on the side face of the conveying belt and can be stretched and retracted vertically to the belt face of the conveying belt, and the first telescopic device is used for blocking a corresponding conveying piece comprising materials to continue conveying after the first telescopic device stretches out vertically to the belt face of the conveying belt so as to position the corresponding conveying piece at a preset material taking position on the conveying belt in the conveying direction of the conveying belt;

the pad printing assembly is arranged on the side surface of the conveyor belt assembly and is used for performing pad printing operation;

and the manipulator is used for transferring the materials in the conveying piece between the pad printing assembly and the preset material taking position.

Preferably, the material positioning device further comprises a second telescopic device which is arranged on the side surface of the conveyor belt and can be stretched and retracted perpendicular to the belt surface of the conveyor belt, and the second telescopic device is used for blocking the corresponding conveying member to continue conveying after the belt surface perpendicular to the conveyor belt extends out, so as to position the conveying member which is positioned outside the preset material taking position on the conveyor belt in the conveying direction.

Preferably, the material positioning device further comprises a limiting guide rail, and the limiting guide rail and the conveyor belt are arranged in a staggered mode along a direction perpendicular to the conveying direction; and adjacent limiting guide rails are matched to guide the conveying piece between the two in the conveying direction.

Preferably, the material positioning device further comprises a clamping device, and the clamping device and the first telescopic device are sequentially arranged along the conveying direction of the conveying belt; the clamping device can be extended and retracted parallel to the belt surface and perpendicular to the conveying direction and clamps the conveying element after extension.

Preferably, the material positioning device further comprises a second conveying member sensor, and the first telescopic device, the clamping device and the second conveying member sensor are respectively and electrically connected with the controller; the second conveying piece sensor is used for sensing whether the conveying piece exists or not; the controller is used for controlling the extension of the first telescopic device and the clamping action of the clamping device according to the detection result of the second conveying piece sensor.

Preferably, the pad printing assembly comprises a printing platform, the printing platform comprises a supporting seat for supporting the material and a plurality of first platform positioning devices, and each first platform positioning device is used for clamping and positioning the material along a corresponding preset positioning direction perpendicular to the supporting direction of the supporting seat.

Preferably, at least one of the first platform positioning devices is an adjustable platform positioning device, the adjustable platform positioning device includes an adjustable positioning driving device, a first fixed positioning portion and an adjustable positioning portion, the first fixed positioning portion is fixed to an output portion of the adjustable positioning driving device, the adjustable positioning portion is rotatably connected to the output portion of the adjustable positioning driving device, a rotation center of the adjustable positioning driving device is parallel to the supporting direction, and the first fixed positioning portion and the adjustable positioning portion are disposed on two sides of the supporting seat so as to be close to each other along a corresponding preset positioning direction under the driving of the adjustable positioning driving device to clamp and position the material.

Preferably, the first platform positioning device further comprises a fixed platform positioning device with a preset positioning direction perpendicular to the preset positioning direction of the adjustable platform positioning device; the fixed platform positioning device comprises a fixed positioning driving device and two second fixed positioning parts fixed on an output part of the fixed positioning driving device, and the two second fixed positioning parts are arranged on two sides of the supporting seat so as to be close to each other along a corresponding preset positioning direction under the driving of the fixed positioning driving device and clamp and position materials.

Preferably, each of the first platform positioning devices further includes a positioning portion sensor, the positioning portion sensor is configured to sense a positioning portion of the first platform positioning device, the positioning portion sensor and a positioning driving device of the first platform positioning device, the positioning driving device being configured to drive the positioning portion to move along a corresponding preset positioning direction, are electrically connected to the controller, and the controller is configured to control start and stop of the corresponding positioning driving device according to a sensing result of the positioning portion sensor.

Preferably, the printing platform is fixed on an output end of a second platform positioning device, and the second platform positioning device can drive the printing platform to move in a direction perpendicular to the supporting direction so as to adjust the position of the printing platform.

The utility model provides a bat printing machine, include: the conveying belt assembly comprises a conveying belt, a material positioning device is arranged on the side face of the conveying belt and comprises a first telescopic device which is arranged on the side face of the conveying belt and can be stretched and retracted vertically to the belt face of the conveying belt, and the first telescopic device is used for blocking a corresponding conveying piece comprising materials from continuing conveying after the belt face perpendicular to the conveying belt extends out so as to position the corresponding conveying piece at a preset material taking position on the conveying belt in the conveying direction of the conveying belt; the pad printing assembly is arranged on the side surface of the conveyor belt assembly and is used for performing pad printing operation; a robot for transferring material in the transfer member between the pad printing assembly and a predetermined take off location.

The automatic batch conveying of material can be realized to the conveyer belt subassembly, the material transmission operation between conveyer belt subassembly and the bat printing subassembly can be accomplished to the manipulator, need not the manual work and get the material from the conveyer belt subassembly and put on the bat printing subassembly, the degree of automation of material bat printing process has been improved, be favorable to reducing staff's intensity of labour, a telescoping device can block the material and be expected the position in predetermineeing, avoid the material to exceed and predetermine and get the material position, can improve the reliability of material location in the direction of transfer, can guarantee going on smoothly of manipulator transmission operation, thereby pass through the conveyer belt subassembly, manipulator and a telescoping device's cooperation improves bat printing efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an overall layout diagram of the pad printing machine provided by the present invention;

fig. 2 is a structural diagram of a first platform positioning device and a second platform positioning device in the pad printing machine provided by the present invention;

FIG. 3 is a block diagram of a second stage positioning device of the pad printing machine of the present invention;

FIG. 4 is an internal structural view of a second platform positioning device in the pad printing machine of the present invention;

FIG. 5 is a block diagram of a first stage positioning device in a pad printing machine according to the present invention;

FIG. 6 is an internal structural view of a first platform positioning device in the pad printing machine of the present invention;

FIG. 7 is a block diagram of an adjustable platform positioning device in a pad printing machine according to the present invention;

FIG. 8 is a partial block diagram of a conveyor belt assembly in a pad printing machine according to the present invention;

fig. 9 is an overall layout view of another pad printing machine provided by the present invention;

fig. 10 is a partial block diagram of another alternative conveyor belt assembly in a pad printing machine according to the present invention.

In fig. 1 to 10:

1-material;

2-a support base, 21-a printing jig and 22-a jig bottom plate;

31-first supporting plate, 32-second supporting plate, 33-middle anti-collision block;

41-X direction supporting seat, 42-X direction guide rail, 43-X direction screw rod, 44-second adjustable block, 45-first adjustable block, 46-X direction motor, 47-fixed sleeve, 48-telescopic rod, 49-third positioning column, 410-X direction nut and 411-X direction positioning part sensor;

51-Y-direction supporting seat, 52-Y-direction synchronizing wheel, 53-Y-direction screw rod, 54-Y-direction synchronizing belt, 55-Y-direction motor, 56-rotation limiting structure, 57-second positioning column, 58-first positioning column, 59-first Y-direction positioning sensor, 510-Y-direction guide rail, 511-first fixed connecting rod, 512-adjustable connecting rod, 513-second Y-direction positioning sensor and 514-Y-direction nut;

61-hot air box, 611-hot air port, 62-cleaning mechanism, 63-oil cup component, 631-product pattern, 64-XXY precision alignment platform, 641-Y motor, 642-cross sliding table, 643-sensor, 644-X motor and 65-printing platform;

7-a manipulator;

8-conveyor assembly, 81-conveyor, 811-belt, 82-first conveyor sensor, 83-first telescopic device, 84-material tray, 841-first material tray, 842-second material tray, 843-third material tray, 844-material groove, 85-limit guide rail, 86-second telescopic device, 87-stop column, 88-telescopic driving device, 89-second conveyor sensor, 810-clamping device, 8101-clamping positioning column, 8102-clamping driving device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The core of the utility model is to provide a pad printing machine, the pad printing efficiency is higher

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "X", "Y", "Z", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In one embodiment of the pad printing machine of the present invention, please refer to fig. 1, which includes a conveyor belt assembly 8, a pad printing assembly and a manipulator 7. The conveyor belt assembly 8 comprises a conveyor belt 81, and the side of the conveyor belt assembly 8 is provided with a material positioning device comprising a first telescopic device 83.

Specifically, the number of the conveyor belts 81 may be 1, or two or more conveyor belts may be arranged in parallel in a direction perpendicular to the conveying direction, and as shown in the embodiment of fig. 1, 4 conveyor belts 81 are arranged in parallel, and the conveying direction of each conveyor belt 81 and the conveying direction of the conveyor belt assembly 8 coincide with each other.

Wherein the conveyor belt 81 conveys the conveyor member thereon. Alternatively, the conveyor may in particular be only the mass 1. Still alternatively, the conveying member may include a material tray 84 and the material 1 disposed in the material tray 84, and the position of the material 1 is located at the same time when the conveying member is located.

The first stretching device 83 is disposed on a side surface of the conveyor belt 81 and can stretch and retract perpendicular to a belt surface of the conveyor belt 81, and the first stretching device 83 is used for blocking a corresponding conveying member on the conveyor belt 81 from continuing conveying after extending out perpendicular to the belt surface of the conveyor belt 81, so that the corresponding conveying member is positioned at a preset material taking position on the conveyor belt 81 in a conveying direction of the conveyor belt 81.

The pad printing assembly is provided at a side of the conveyor belt assembly 8 for performing a pad printing operation. As shown in fig. 1 in particular, the pad printing assembly may include a pad printing head, a hot air box 61 for drying ink on the pad printing head, a cleaning mechanism 62 for cleaning ink on the pad printing head, and an ink cup assembly 63 for inking the pad printing head.

The robot 7 is used to transfer the material 1 in the conveyor between the pad printing assembly and a predetermined picking position on the conveyor belt 81. Wherein, manipulator 7 specifically carries out material 1 transmission between the material position is got with predetermineeing to the printing platform 65 of bat printing subassembly, specifically can include with waiting to the material 1 of bat printing on conveyer belt 81 to pass to the printing platform 65 to and with the material 1 after the bat printing on the printing platform 65 back pass to predetermineeing on the conveyer belt 81 of getting material position department, of course, according to procedure setting and needs, material 1 after the bat printing also can pass to other positions through manipulator 7.

Preferably, the manipulator 7, the pad printing assembly and the conveyor belt assembly can be electrically connected to a controller, so that the components of the pad printing machine can be controlled uniformly by the controller, and the controller can automatically control the action of the manipulator 7 according to the running conditions of the conveyor belt assembly and the pad printing assembly. Alternatively, the robot 7, the conveyor belt assembly, and the pad printing assembly may be individually controlled by a human operator.

In this embodiment, conveyer belt subassembly 8 can realize the automatic conveying of material 1 in batches, manipulator 7 can accomplish the 1 transmission operation of material between conveyer belt subassembly 8 and the bat printing subassembly, need not the manual work and get the material and put on the bat printing subassembly again, the degree of automation of the 1 bat printing process of material has been improved, be favorable to reducing staff's intensity of labour, first telescoping device 83 can block material 1 and get the material position in the presetting, avoid the material to exceed and preset and get the material position, can improve the reliability of material 1 location in the direction of transfer, can guarantee going on smoothly of the 7 transmission operation of manipulator, thereby through conveyer belt subassembly 8, manipulator 7 improves bat printing efficiency with the cooperation of first telescoping device 83.

Further, the pad printing machine also comprises an material tray 84, and the material tray 84 and the material 1 form a conveying piece together. The material tray 84 is used for placing the material 1, and the material tray 84 is placed on the conveyor belt 81. The first telescopic device 83 blocks the material 1 in the material tray 84 by blocking the corresponding material tray 84, thereby positioning the material 1 at the preset material taking position.

The conveyor belt 81 and the upper material tray 84 are in contact with each other but not directly connected with each other, and after being blocked by the first telescopic device 83, the conveyor belt 81 and the material tray 84 can relatively slide in the conveying direction.

The number of the material grooves 844 for carrying the materials 1, which are arranged on the material tray 84, may be set as needed, and as shown in fig. 1, 10 material grooves 844 are arranged on the material tray 84, so that one material tray 84 may transfer 10 materials 1. Of course, in other embodiments, the number of material slots 844 provided on each material tray 84 may be 1, 3, or other numbers.

Preferably, the shape of each material groove 844 is matched with that of the material 1, the material 1 can be fixed in the material groove 844 of the material tray 84, and the material tray 84 and the material 1 cannot be displaced relatively in the conveying direction during conveying. For example, for curved glass, the material slot 844 is a corresponding curved slot; or, for the rectangular material 1, the material grooves 844 are corresponding rectangular grooves.

The material tray 84 is used for loading and supporting the material 1, so that friction between the material 1 and the belt surface of the conveyor belt 81 can be avoided, the first telescopic device 83 can be prevented from directly contacting and impacting the material 1 when blocking operation is carried out, and the material 1 is protected.

Further, the material positioning device further comprises a second telescopic device 86 arranged on the side surface of the conveyor belt 81, and the second telescopic device 86 can be stretched and retracted perpendicular to the belt surface of the conveyor belt 81. The second telescopic device 86 is used for extending perpendicular to the belt surface of the conveying belt 81 and blocking the corresponding conveying member from continuing conveying so as to position the conveying member, which is positioned outside the preset material taking position, on the conveying belt 81 in the conveying direction.

In the embodiment shown in fig. 1, three trays 84 are disposed on the same conveyor belt 81 along the conveying direction, which is shown as a first tray 841, a second tray 842 and a third tray 843 from left to right. The second material tray 842 is located at a preset material taking position, the first telescoping device 83 blocks the second material tray 842, the first material tray 841 is blocked by the second telescoping device 86 on the left side of the first telescoping device 83, and the third material tray 843 is blocked by the second telescoping device 86 on the right side of the first telescoping device 83, so that the synchronism of movement between the material trays 84 can be kept, the control is convenient, the first material tray 841 can be prevented from continuously advancing to impact the second material tray 842, and the third material tray 843 can be prevented from falling off from the conveyor belt 81.

When the conveying members are placed on the conveying belt 81, the distance between the conveying members is determined according to the corresponding setting positions of the first telescopic device 83 and the second telescopic device 86, and the conveying process is guaranteed to avoid the corresponding conveying members from being collided when the first telescopic device 83 or the second telescopic device 86 extends out.

Optionally, referring to fig. 8, the first telescopic device 83 specifically includes blocking pillars 87 disposed on two sides of the conveyor belt 81 perpendicular to the conveying direction, and a telescopic driving device 88 connected to the blocking pillars 87 to drive the blocking pillars 87 to extend and retract perpendicular to the belt surface of the conveyor belt 81. The telescopic drive 88 is electrically connected to the controller. The controller correspondingly controls the catch 87 by controlling the telescopic driving device 88. The telescopic driving means 88 may be embodied as a cylinder or a motor. The two sides of the conveyor belt 81 are provided with the blocking posts 87, so that the blocking effect of the conveying piece can be ensured. The second telescopic device 86 may be configured the same as the first telescopic device 83.

Preferably, pressure sensors may be disposed on the tops of the first telescopic device 83 and the second telescopic device 86, the pressure sensors are electrically connected to the controller, and the controller controls the corresponding first telescopic device 83 or the corresponding second telescopic device 86 to stop extending according to a detection result of the pressure sensors. When the pressure sensor detects that the pressure is greater than the set pressure, it is proved that the corresponding telescopic device (the first telescopic device 83 or the second telescopic device 86) is blocked by the material tray 84 in the extending process, an error exists in the placing position of the material tray 84, at the moment, the controller controls the corresponding telescopic device to stop extending, the material tray 84 can be prevented from overturning, and the corresponding telescopic device (the first telescopic device 83 or the second telescopic device 86) has a protection effect.

Preferably, referring to fig. 8, a first conveying element sensor 82 is further disposed on a side surface of the conveying belt 81, the first conveying element sensor 82 is used for sensing whether the material tray 84 exists, and when the material starts to pass through the first conveying element sensor 82 or completely leaves a position of the first conveying element sensor 82, the first conveying element sensor 82 can send a corresponding signal to the controller. The controller is used for controlling the extension of the first telescopic device 83 according to the detection result of the first conveying piece sensor 82 so as to block the operation of the material. The first conveying sensor 82 and the corresponding first telescopic device 83 are sequentially arranged along the conveying direction of the conveying belt 81. Based on the cooperation of first conveying piece inductor 82 and first telescoping device 83, can avoid material dish 84 conveying to surpassing the position of first telescoping device 83 place more effectively to effectively improve the accuracy of location, bring the facility for follow-up work.

In the specific pad printing process, when the material tray 84 passes through the first conveying piece sensor 82, the first conveying piece sensor 82 sends a signal to the controller, the controller correspondingly controls the first telescopic device 83 to stretch out, when the material tray 84 bearing the material 1 moves to the position of the first telescopic device 83, the material tray is blocked and cannot continuously pass through, and then the manipulator 7 takes away the material 1 to remove pad printing. In addition, the conveyor belt 81 can stop running after the first telescopic device 83 blocks the material tray 84, so as to avoid friction between the material at the preset material taking position and the conveyor belt 81, ensure that the material 1 can move to a position abutting against the telescopic device 83, and restart the conveyor belt 81 after the material 1 is taken away by the manipulator 7.

Preferably, a certain distance should be provided between the first conveyor sensor 82 and the corresponding first telescopic device 83 to ensure that the first telescopic device 83 is fully extended before the tray 84 arrives. In addition, according to the distance relationship between the first transmission sensor 82 and the first telescopic device 83, the controller may control the first telescopic device 83 to extend when receiving the detection result of the first transmission sensor 82, or may control the first telescopic device 83 to extend at a certain interval after receiving the detection result of the first transmission sensor 82.

For the retraction and reset control of the first telescopic device 83, the controller may specifically control the first telescopic device 83 to retract after the first telescopic device 83 extends for a preset time, or control the first telescopic device 83 to retract and reset when receiving a signal that the manipulator 7 starts to take materials from the material tray 84 with preset materials.

More preferably, the second expansion device 86 is electrically connected to a controller, and the controller can control the first expansion device 83 and the second expansion device 86 to expand and contract synchronously.

Further, the material positioning device further comprises a limiting guide rail 85, and the limiting guide rail 85 and the conveyor belt 81 are arranged in a staggered mode along the direction perpendicular to the conveying direction of the conveyor belt 81. Wherein adjacent ones of the spacing rails 85 cooperate to guide the conveying member therebetween in the conveying direction of the conveyor belt 81.

Through the guide effect of limit guide 85, limit guide 85 can carry on spacingly to the conveying piece on the perpendicular to direction of transfer all the time, avoids conveying piece skew to take place in the transfer process, improves the stationarity of conveying.

Wherein, optionally, in the direction perpendicular to the conveying direction of the conveyor belts 81, the number of the conveyor belts 81 between the adjacent limit guide rails 85 can be set according to actual needs. In the embodiment shown in fig. 1, three of the curb rails 85 form a double path, the adjacent curb rails 85 form a conveying path, each of the conveyor belts 81 in one conveying path form a conveyor belt group, and all of the conveyor belts 81 in one conveyor belt group cooperate to convey the conveyor members simultaneously. As shown in fig. 1, two conveyor belts 81 form a conveyor belt group, and the first material tray 841, the second material tray 842 and the third material tray 843 are all pressed against the two conveyor belts 81 at the same time for conveying. In addition, as shown in FIG. 1, each transfer lane feeds two pad printing assemblies.

Wherein preferably the spacing of adjacent limit rails 85 perpendicular to the conveying direction is adjustable, so that it can be adapted to the positioning requirements of different conveying elements.

Preferably, rollers may be disposed on the side surfaces of the material tray 84, so that the material tray 84 forms a rolling fit with the position-limiting guide rail 85 through the rollers, and friction damage between the position-limiting guide rail 85 and the material tray 84 is reduced.

Further, the manipulator 7 is provided with pad printing components on two sides in the linear direction parallel to the conveying direction, and the manipulator 7 can transfer the material 1 between the pad printing components on any side and the material tray 84 at the preset material taking position. The technical scheme that one manipulator 7 is simultaneously responsible for taking materials of the pad printing assemblies on the two sides of the manipulator is adopted, and the whole occupied space of the equipment is saved.

As shown in fig. 1, the direction of the belt 81 is rightward, and one pad printing unit is provided on each of the right and left sides of the robot 7. In the pad printing control process, after a manipulator 7 is controlled by a controller to take a material 1 to a left pad printing component for pad printing, another material 1 is taken to a right pad printing component for pad printing immediately, and the pad printing efficiency is improved. Or, after the controller controls the manipulator 7 to take one material 1 to the left pad printing assembly for pad printing, the material 1 on the right pad printing assembly just finishes pad printing, the controller controls the manipulator 7 to transfer the material 1 on the right pad printing assembly to the vacancy of the material tray 84 at the preset material taking position, then the material 1 to be pad printed on the other material tray 84 is taken to the pad printing assembly on the right side for pad printing, and finally, the material tray 84 at the preset material taking position is filled with the pad printed material 1 and then is continuously conveyed on the conveyor belt 81 to be conveyed to the rear equipment such as an oven behind the conveyor belt assembly 8.

Wherein the manipulator 7 may alternatively be a manipulator 7 for the gripping or suction of the material 1, which is rotatable and movable up and down, more specifically the manipulator 7 may be a manipulator 7 of the die set, cylinder, rotary cylinder die set type, but also a die set, or DE L TA robot, or SCARA robot, or a six axis robot.

Further, referring to fig. 1, the printing platform 65, the hot air box 61, the cleaning mechanism 62 and the ink cup assembly 63 are oriented in a direction perpendicular to the conveying direction and away from the conveyor belt assembly 8, as shown in fig. 1. The pad printing head can move in a direction perpendicular to the transport direction above the printing platform 65, the hot air box 61, the cleaning mechanism 62 and the ink cup assembly, and the pad printing head can perform lifting movement. Since the printing platform 65 is closest to the conveyor assembly 8 in the pad printing assembly, the distance the robot 7 needs to move between the printing platform and the conveyor assembly 8 to transfer the material 1 can be reduced. In particular, the pad may be connected to a drive system to effect a change in position thereof, the drive system being electrically connected to the controller.

Of course, in other embodiments, the positions of the printing platform 65, the hot air box 61, the cleaning mechanism 62 and the ink cup assembly 63 may be interchanged, and the printing platform 65, the hot air box 61, the cleaning mechanism 62 and the ink cup assembly 63 may be arranged in sequence along the direction parallel to the conveying direction. In addition, in this embodiment, the material tray 84 may not be provided, and only one material 1 may be provided as the conveying member at each position of the material tray 84 on the conveyor belt.

On the basis of the above embodiments, referring to fig. 5 to 7, the printing platform 65 includes a support base 2 and a plurality of first platform positioning devices. The supporting seat 2 is used for supporting the material 1, and the supporting direction is the upward direction of the Z direction in the figure. The first platform positioning device is used for clamping and positioning the material 1 along a corresponding preset positioning direction perpendicular to the Z direction. Each first platform positioning device corresponds to a preset positioning direction perpendicular to the Z direction and serves as the direction of positioning the material 1, and after the first platform positioning devices clamp the material 1, the material 1 can be limited to move in the preset positioning direction corresponding to the first platform positioning devices. Through the setting of first platform positioner, can guarantee that material 1 can not take place to rock at the pad printing head bat printing in-process, guarantee the accuracy of bat printing.

Further, the at least one first platform positioning device is an adjustable platform positioning device. As shown in fig. 7, the adjustable platform positioning device includes an adjustable positioning driving device, a first fixing and positioning portion, and an adjustable positioning portion. The first fixed positioning part is fixed at the output part of the adjustable positioning driving device, the adjustable positioning part is rotatably connected with the output part of the adjustable positioning driving device, and the rotation center of the adjustable positioning part is parallel to the supporting direction of the supporting seat 2, namely, the rotation center extends along the Z direction. The first fixed positioning part and the adjustable positioning part are arranged on two sides of the supporting seat 2, and can be driven by the adjustable positioning driving device to approach each other along the corresponding preset positioning direction so as to clamp and position the material 1.

It should be noted that, as shown in fig. 6, in the present application, the X direction, the Y direction, and the Z direction are perpendicular to each other. In practical use, the X direction and the Y direction are generally two linear directions on a horizontal plane, the Z direction is a linear direction perpendicular to the horizontal plane, and the supporting direction of the supporting seat 2 is perpendicular to the horizontal plane and upwards.

On the printing platform 65, the material 1 is located on the supporting seat 2 between the first fixed positioning portion and the adjustable positioning portion, in the adjustable platform positioning device, the adjustable positioning driving device drives the first fixed positioning portion and the adjustable positioning portion to move close to each other along the corresponding preset positioning direction (e.g., Y direction), and when the material 1 is clamped, due to the rotatable arrangement of the adjustable positioning portion, the adjustable positioning portion can push the material 1 to be tightly attached to the first fixed positioning portion, and simultaneously adjust the angle of the adjustable positioning portion, so that the adjustable positioning portion is also tightly attached to the material 1.

It can be seen that, in the preset positioning direction corresponding to the adjustable platform positioning device, the first fixed positioning part is used as a positioning reference, and the angle of the adjustable positioning part in the material 1 is adaptively adjusted to adapt to the direction of the first fixed positioning part, so that the material 1 can be adaptively clamped by the adjustable positioning part and the first fixed positioning part for positioning, the material 1 is prevented from shaking in the direction, the positioning reliability can be effectively improved, and the precise centering positioning of the material 1 is favorably realized.

The number of the first platform positioning devices can be set to be one, two or more than two according to actual needs. When the number of the first platform positioning devices is only one, the first platform positioning device is the adjustable platform positioning device.

Optionally, as shown in fig. 7, the first fixing and positioning portion includes a first fixing link 511 fixed to the output portion of the adjustable positioning driving device, and at least two first positioning pillars 58 are fixed on the first fixing link 511 at intervals; the adjustable positioning portion comprises an adjustable connecting rod 512 rotatably connected to the output portion of the adjustable positioning driving device, the rotation center of the adjustable connecting rod 512 extends along the Z direction, at least two second positioning columns 57 are fixed on the adjustable connecting rod 512 at intervals, and the second positioning columns 57 are used for being matched with the first positioning columns 58 to clamp and position the material 1.

If a plate-shaped structure is directly used for contact to position one surface of the material 1, when the machining error of the plate-shaped structure is large or the surface of the material 1 is a curved surface, the contact area between the plate-shaped structure and the material 1 is difficult to ensure. In the embodiment, one surface of the material 1 is positioned by adopting a mode that at least two positioning columns are matched with each other, and each positioning column can be respectively in good contact with different positions on the side surface of the material 1, so that the positioning effect is ensured, meanwhile, the manufacturing material of the connecting part is favorably saved, and the processing difficulty is reduced.

The number of the first positioning posts 58 and the second positioning posts 57 can be two, three, five or other numbers as required. The number of the positioning pillars on the adjustable connecting rod 512 and the first fixed connecting rod 511 may be the same or different. In addition, on same connecting rod, the interval between the adjacent reference column can set up according to actual need. Specifically, referring to fig. 7, two second positioning posts 57 are fixed in parallel on the adjustable connecting rod 512, and two first positioning posts 58 are fixed in parallel on the first fixed connecting rod 511. The two second positioning columns 57 arranged on the adjustable connecting rod 512 and the rotation center of the adjustable connecting rod 512 are preferably arranged at equal intervals. In the process of clamping the material 1, the two first positioning columns 58 and the two second positioning columns 57 can both contact the material 1 through adaptive swing adjustment of the adjustable connecting rod 512.

Furthermore, the output part of the adjustable positioning driving device is provided with a rotation limiting structure 56 for limiting the rotation angle range of the adjustable positioning part. Through the setting of limit commentaries on classics structure 56, can inject the corner of adjustable location portion in reasonable within range, adjustable location portion can adjust to the state of pasting material 1 more fast, need not to swing by a wide margin at the location in-process.

Specifically, as shown in fig. 7, the rotation limiting structure 56 includes limiting blocks respectively disposed at two sides of the adjustable connecting rod 512, and when the adjustable connecting rod 512 swings around its rotation center to abut against the limiting blocks, the adjustable connecting rod 512 cannot continue to rotate in the original direction. Or, the rotation limiting structure 56 may include an encoder connected to the adjustable connecting rod 512 and a cylinder fixed at the output portion of the adjustable positioning driving device, both the cylinder and the encoder are electrically connected to the controller, and the controller controls the piston rod of the cylinder to extend out to block the adjustable connecting rod 512 according to the detection of the encoder on the rotation angle of the adjustable connecting rod 512, so as to prevent the adjustable connecting rod 512 from continuing to rotate along the original direction.

Further, the first platform positioning device further includes a fixed platform positioning device, and preferably, the fixed platform positioning device is perpendicular to the preset positioning direction of the adjustable platform positioning device, as shown in fig. 6, the preset positioning direction of the fixed platform positioning device is an X direction, and the preset positioning direction of the adjustable platform positioning device is a Y direction. The fixed platform positioning device comprises a fixed positioning driving device and two second fixed positioning parts fixed on an output part of the fixed positioning driving device, and the two second fixed positioning parts are arranged on two sides of the supporting seat 2 so as to be close to each other along a corresponding preset positioning direction under the driving of the fixed positioning driving device and clamp and position the material 1.

Referring to fig. 6, each of the second fixing and positioning portions is a third positioning column 49 fixed to the output portion of the fixing and positioning driving device, and the two third positioning columns 49 are matched with each other in the X direction to clamp and position the material 1, and at this time, the two third positioning columns 49, the two first positioning columns 58 arranged at intervals in the X direction, and the two second positioning columns 57 arranged at intervals in the X direction can be matched with each other to clamp the material 1 therebetween. Of course, the number of the third positioning posts 49 in each second fixing and positioning portion may be two or another value.

For the material 1 with a rectangular structure, taking mobile phone glass as an example, the length direction of the mobile phone glass is parallel to the X direction, and the width direction is parallel to the Y direction to be placed on the supporting seat 2. The fixed platform positioning device can be used for clamping the side face corresponding to the short edge for positioning, and the side length is short, so that reliable positioning can be directly carried out through the second fixed positioning part which cannot rotate around the Z-axis, and the side face corresponding to the long edge of the mobile phone glass is clamped and positioned by further matching with the adjustable platform positioning device, so that the reliable positioning of the whole mobile phone glass can be ensured, and the processing is convenient.

Further, the fixed position of at least one second fixing and positioning portion on the output portion of the fixing and positioning driving device is adjustable, for example, adjustable along the Y direction or adjustable along the X direction, so that the relative position of two second fixing and positioning portions can be adjusted as required, and the applicability is improved. After the second fixing and positioning part is adjusted in position on the output part of the fixing and positioning driving device, the second fixing and positioning part is fixed relative to the output part of the fixing and positioning driving device.

Specifically, referring to fig. 6, the third positioning post 49 is fixed on the first adjustable block 45, the first adjustable block 45 is fixed on the second adjustable block 44, the second adjustable block 44 is fixed on the output portion of the fixed positioning driving device, and the fixed position of the third positioning post 49 is adjusted by the first adjustable block 45 being screwed to different positions on the second adjustable block 44 along the Y direction. Or, the second fixing and positioning part can be connected to the output part of the fixing and positioning driving device through an air cylinder, the position of the second fixing and positioning part is adjusted through the expansion and contraction of the air cylinder, and the air cylinder is controlled by the controller.

Furthermore, the height of the adjustable positioning portion, the first fixed positioning portion and the second fixed positioning portion in the Z direction is adjustable, so that the applicability of the printing platform 65 can be improved, and the positions of the positioning portions can be adaptively adjusted according to the position and the thickness of the material 1 in the Z direction.

Specifically, each positioning column is a telescopic rod 48, so that the height of the corresponding positioning portion in the Z direction is adjusted. Taking the second fixing and positioning portion as an example, as shown in fig. 6, the third positioning column 49 includes a fixing sleeve 47 fixed on the output portion of the fixing and positioning driving device and an expansion rod 48 capable of extending or retracting in the Z direction relative to the fixing sleeve 47, and the expansion rod 48 and the fixing sleeve 47 may be screwed, snapped, or connected in other ways to be fixed together after the Z-direction relative position is adjusted. Alternatively, the height adjustment of the positioning portion in the Z direction may be performed by providing a Z-direction telescopic cylinder between the output portion of the positioning drive device and the corresponding positioning portion, and the cylinder is preferably controlled by a controller electrically connected thereto.

Referring to fig. 5, the printing platform 65 specifically includes a box body composed of a first supporting plate 31, a second supporting plate 32 disposed on one side of the first supporting plate 31Z in the upward direction, and a peripheral plate disposed between the first supporting plate 31 and the second supporting plate 32. Each first platform positioning device is arranged in the box body and protected by the box body. The supporting seat 2 comprises a jig bottom plate 22 arranged on the first supporting plate 31 and outside the box body and a printing jig 21 arranged on the jig bottom plate 22, and the material 1 is arranged on the printing jig 21. The first supporting plate 31 is provided with a guide hole for providing a moving space for the corresponding positioning column in a Z-direction penetrating manner, and the positioning column in each positioning device can extend out of the box body through the corresponding guide hole to position the material 1. Because the positioning columns are Z-direction height-adjustable, when the positioning columns do not work, the positioning columns can retract into the box body, and the service life of the positioning columns is prolonged.

Furthermore, the positioning driving device of each first platform positioning device comprises a rotary driver and a screw nut component connected to an output shaft of the rotary driver, and the screw nut component can convert the rotary motion into linear motion. The screw rod of the screw rod nut component comprises two screw thread sections with opposite rotating directions, and two positioning parts in the first platform positioning device are respectively connected to nuts of the two screw thread sections so as to enable the two positioning parts to synchronously and reversely move along the corresponding preset positioning directions, so that the material 1 is clamped and positioned or the material 1 is loosened. At this time, the nut is the output part of the positioning driving device.

It should be noted that, in the present application, the positioning portion may specifically be an adjustable positioning portion, a first fixed positioning portion, or a second positioning portion. Specifically, when the first platform positioning device is an adjustable platform positioning device, the positioning driving device is an adjustable positioning driving device, and the two positioning parts are respectively an adjustable positioning part and a first fixed positioning part; when the first platform positioning device is a fixed platform positioning device, the positioning driving device is a fixed positioning driving device, and the two positioning parts are respectively two second fixed positioning parts; of course, the first platform positioning device may also be another first platform positioning device in the platform, which clamps and positions the material 1 by the two positioning parts in a matching manner.

Through the arrangement of the positioning driving device, the driving efficiency of the positioning part can be effectively improved, and the energy conservation and the space occupation of equipment are facilitated. Meanwhile, in a first platform positioning device, after the movement distance of one positioning part is determined, the movement distance of the other positioning part is correspondingly determined due to synchronous movement, so that the movement distance of the positioning parts can be conveniently controlled.

Specifically, as shown in fig. 6 and 7, the fixed positioning driving device includes an X-direction motor 46 and an X-direction screw nut assembly, the X-direction screw nut assembly includes an X-direction screw 43, an X-direction rail 42 and an X-direction nut 410, the X-direction screw 43 and the X-direction rail 42 both extend along the X direction, the X-direction nut 410 is slidably connected to the X-direction rail 42 extending along the X direction to prevent the X-direction nut 410 from rotating on the X-direction screw 43, and the X-direction nut 410 is threadedly connected to the X-direction screw 43, so that the rotational motion of the X-direction motor 46 can be converted into the linear motion of the X-direction nut 410 through the transmission of the X-direction screw 43 and the limit of the X-direction rail 42. The output shaft of the X-direction motor 46 and the X-direction lead screw 43 can be in transmission connection through a synchronous belt assembly, and can also be directly and fixedly connected through a coupler or other modes. The two second fixing and positioning portions are fixed to the two X-direction nuts 410, respectively. Correspondingly, the adjustable positioning driving device includes a Y-direction motor 55 and a Y-direction screw nut assembly, and the specific configuration may refer to the description of the X-direction motor 46 and the X-direction screw nut assembly, which is not described again, wherein the two Y-direction nuts 514 are connected with the adjustable positioning portion and the first fixing and positioning portion, respectively.

Of course, in other embodiments, the positioning driving device may also include two linear drivers, where the two linear drivers are respectively connected to the two positioning portions of the first platform positioning device, and the linear drivers can drive the positioning portions of the linear drivers to reciprocate linearly along the corresponding preset positioning directions, so as to respectively control the two positioning portions of the first platform positioning device. Or, the positioning driving device may be a bidirectional cylinder, the two positioning portions in the first platform positioning device are respectively connected to two piston rods of the bidirectional cylinder, and the bidirectional cylinder is preferably electrically connected to the controller, and the controller controls the start and stop of the bidirectional cylinder.

Further, each first platform positioner still includes location portion inductor, and location portion inductor is used for responding to the location portion that is used for fixing a position material 1 among the first platform positioner, promptly, location portion inductor can respond to whether have location portion to move to its response within range, and location portion inductor specifically can be infrared inductor, supersound inductor etc.. The positioning part sensor in the first platform positioning device and the positioning driving device for driving the positioning part are respectively and electrically connected to the controller, and the controller is used for controlling the start and stop of the corresponding positioning driving device according to the sensing result of the positioning part sensor. The position of the corresponding positioning part can be determined by the positioning part sensor through sensing the positioning part, so that convenience is provided for the controller to control the moving distance of the positioning part, and each material 1 can be positioned at the same position.

In one specific application, referring to fig. 7, for the adjustable platform positioning device with Y-direction positioning, on one side of the first fixing and positioning portion in the X-direction, a first Y-direction positioning portion sensor 59 and a second Y-direction positioning portion sensor 513 are sequentially arranged along the Y-direction and the direction close to the adjustable positioning portion, and a Y-direction sensing piece matched with the Y-direction positioning portion sensor is fixedly arranged on the first fixing and positioning portion. During the process of approaching the adjustable positioning part, when the second Y-positioning part sensor 513 senses the Y-sensing piece, the controller controls the Y-motor 55 to stop rotating, and the adjustable positioning part and the first fixed positioning part stop moving synchronously and clamp the material 1; when the material 1 needs to be loosened, the controller controls the Y-direction motor 55 to be started reversely, the first fixing and positioning portion moves away from the adjustable positioning portion, and when the first Y-direction positioning portion sensor 59 senses the Y-direction sensing piece, the controller controls the Y-direction motor 55 to stop rotating, and the adjustable positioning portion and the first fixing and positioning portion stop moving synchronously. The adjustable positioning part and the first fixed positioning part move synchronously, so that the Y-direction positioning part sensor is arranged on one side of the first fixed positioning part correspondingly, and the adjustable positioning part does not need to be matched with the Y-direction positioning part sensor. For the fixed platform positioning device with X-direction positioning, the setting manner of the X-direction positioning portion sensor 411 may refer to the above Y-direction positioning portion sensor, and is not described again.

Further, the support base 2 is provided with an intermediate impact prevention block 33 on one side in the Z direction, and the intermediate impact prevention block 33 is provided between the positioning portions. Preferably, the middle impact-proof block 33 may be of an elastic structure to reduce impact damage. The middle anti-collision block 33 separates the positioning parts moving towards the material 1, so that the positioning parts can be effectively protected, and the impact damage between the positioning parts is reduced. As shown in fig. 7, due to the provision of the intermediate anti-collision block 33, no collision directly occurs between the adjustable positioning portion, the first fixed positioning portion, and the two second fixed positioning portions.

Further, the printing platform 65 is fixed on the output end of the second platform positioning device, the second platform positioning device can drive the printing platform 65 to move in the direction perpendicular to the supporting direction so as to adjust the position of the printing platform 65, the first platform positioning device of the printing platform 65 can realize precise repeated positioning of the material 1, and the second platform positioning device adjusts the printing platform 65 and the overall position of the material 1 thereon, so that automatic precise alignment of the material 1 and the transfer printing pattern is realized through the two positioning devices.

As shown in fig. 2 to 4, an XXY precision alignment stage 64 is preferably disposed below the second supporting plate 325 as a second stage positioning device. The XXY precision aligning platform 64 adjusts the overall position of the printing platform 65 and the material 1 thereon. The XXY alignment platform comprises a cross sliding table 642 provided with a motor, wherein 2 sliding tables move in the X-axis direction and 1 sliding table moves in the Y-axis direction; if 2 motors in the X-axis direction are driven in the same direction, the output end of the XXY precision alignment stage 64 can move in the positive and negative directions of the X-axis, if 1 motor in the Y-axis direction is driven alone, the output end of the XXY precision alignment stage 64 can move in the positive and negative directions of the Y-axis, and if 3 motors are driven simultaneously, the output end of the XXY precision alignment stage 64 can rotate around a certain rotation point.

The pad printing machine of the embodiment is applied to glass pad printing, and the specific using process is as follows:

the glass is placed in the material tray 84, the conveyer belt drives the material tray 84 filled with the glass to transmit towards the specified transmission direction, and when the glass moves to the preset material taking position, the telescopic device in front of the conveyer belt extends out of the belt surface to block the glass so as to limit the glass to move forward continuously;

the manipulator 7 moves downwards to clamp the glass, then ascends, and then moves towards the printing platform 65 until the glass is placed on the printing platform 65;

the first platform positioning device on the printing platform 65 positions and clamps the glass; meanwhile, the XXY precision alignment platform 64 below the printing platform 65 adjusts the whole position of the glass;

an oil cup of the oil cup assembly 63 inks in a groove matched with the glass transfer printing pattern, and then scrapes off the redundant ink through a scraper;

the pad printing head descends to the groove of the ink cup assembly 63 to take ink, and then ascends to move to the hot air box 61 to dry the ink;

when the ink is dried to a specified degree, the pad printing head moves to the position above the glass of the printing platform 65 for printing;

the manipulator 7 clamps the printed glass away and clamps new glass, and the pad printing head moves to the cleaning mechanism 62 to clean the ink on the pad printing head for the next cycle.

Obviously, the arrangement of the material positioning device is not limited to the manner provided in the above embodiments. In another embodiment, referring to fig. 9 and 10, the material positioning device includes a clamping device 810 and a first telescopic device 83 sequentially arranged along the conveying direction of the conveyor belt 81. In this embodiment, the conveying member may be a material only. The first telescopic device 83 can stretch out and draw back along the belt surface perpendicular to the conveying belt 81 and block the corresponding material 1 from continuing conveying after extending out, the clamping device 810 can stretch out and draw back in the direction parallel to the belt surface of the conveying belt 81 and perpendicular to the conveying direction of the conveying belt 81, and the clamping device 810 can clamp the material 1 after extending out so as to position the corresponding material 1 at a preset material taking position on the conveying belt 81. Specifically, first telescoping device 83 can avoid material 1 to exceed and predetermine the position of getting the material in the direction of transfer, and clamping device 810 realizes carrying out location placed in the middle to material 1 at the perpendicular to direction of transfer, according to the distance that stretches out of the position relation control clamping device 810 between material 1 and the conveyer belt 81 to put crooked material 1 on the adjustment conveyer belt 81.

First telescoping device 83 can avoid the conveying of material 1 to surpass and predetermine the material position of getting, and clamping device 810 can fix a position between two parties to material 1, makes manipulator 7 can get the material in the position of confirming, is convenient for to the path planning of manipulator 7 to improve bat printing efficiency through the setting of conveyer belt subassembly, material positioner and manipulator.

Further, referring to fig. 10, the material positioning device further includes a second conveying member sensor 89, where the second conveying member sensor 89 is used for sensing whether the material 1 exists or not, and may be an infrared sensor, an ultrasonic sensor, or another type of sensor. When the material 1 starts to pass the sensor or when the material 1 completely leaves the position of the second conveyor sensor 89, the second conveyor sensor 89 can send a corresponding signal to the controller. The first telescopic device 83, the clamping device 810 and the second conveyor sensor 89 are electrically connected to the controller respectively. The controller is used for controlling the extension of the first telescopic device 83 and the clamping action of the clamping device 810 according to the detection result of the second conveyor sensor 89.

The utility model provides a specific bat printing in-process, material 1 places on conveyer belt 81, when through second conveying member inductor 89, second conveying member inductor 89 sends the signal to the controller, the controller corresponds the first telescoping device 83 of control promptly and stretches out, is blocked when material 1 moves to first telescoping device 83 position, the controller is again controlled clamping device 810 and is pressed from both sides tight material 1, after fixing a position, clamping device 810 loosens material 1, manipulator 7 takes material 1 away to go the bat printing. In addition, the conveyor belt 81 can stop running after the first telescopic device 83 blocks the material 1, so that friction between the material at a preset material taking position and the conveyor belt 81 is avoided, the material 1 can be moved to a position where the material abuts against the first telescopic device 83, and the next material is started after being placed on the conveyor belt 81.

Preferably, a certain distance should be provided between the second conveyor sensor 89 and the first telescopic device 83 to ensure that the first telescopic device 83 is fully extended before the material 1 arrives. In addition, according to the distance relationship between the second conveyor sensor 89 and the first telescopic device 83, the controller may control the first telescopic device 83 to extend when receiving the detection result of the second conveyor sensor 89, or may control the first telescopic device 83 to extend at a certain interval after receiving the detection result of the second conveyor sensor 89. The gripping device 810 may be extended by the controller after a period of time after the first extension and retraction device 83 is extended.

For the retraction and return control of the first telescopic device 83, the controller may specifically control the retraction of the first telescopic device 83 after the first telescopic device 83 extends for a preset time. For resetting of the clamp 810, the controller may specifically control the clamp 810 to reset after the clamp 810 is clamped for a preset length of time. More specifically, the gripping device 810 and the first telescopic device 83 can be reset simultaneously.

Optionally, referring to fig. 10, the clamping device 810 includes clamping positioning pillars 8101 disposed on two sides of the conveyor belt 81, and two, three, or other numbers may be disposed on each side. At least two clamping and positioning columns 8101 are sequentially arranged on each side of the conveying belt 81 along the conveying direction. The clamping positioning columns 8101 are connected to a clamping driving device 8102 to drive the clamping positioning columns 8101 on both sides of the conveyor belt 81 to move in opposite directions to clamp or unclamp the material 1 in a direction perpendicular to the conveying direction. The clamping driving device 8102 is electrically connected to the controller, and the controller correspondingly controls the clamping positioning column 8101 by controlling the clamping driving device 8102. The clamping drive 8102 may be embodied as a cylinder or a motor.

It can be seen that, based on the arrangement of the second conveyor sensor 89, a reliable reference can be provided for the extending time of the first telescopic device 83 and the clamping device 810, and the positioning operation can be effectively ensured.

Further, the conveyor belt assembly, the manipulator 7 and the pad printing assembly are electrically connected to a controller, the controller is used for controlling the movement of the manipulator 7 according to the operation condition of the conveyor belt assembly and the pad printing assembly, and the controller controls the manipulator to act when receiving a setting signal of the pad printing assembly or a setting signal of the conveyor belt assembly, so that the controller can realize the unified control of all parts of the pad printing machine.

Specifically, when the material 1 sensor detects that the material 1 is stored in the preset material taking position, the controller may control the manipulator 7 to move to the preset material taking position after a preset time length to take the material, or control the manipulator 7 to move to the preset material taking position to take the material when the clamping device 810 in the conveyor belt assembly releases the material 1; the controller may control the robot 7 to move to the pad printing assembly to pick up material when the pad printing head in the pad printing assembly completes the pad printing operation or after a period of time after completing the pad printing operation.

Further, the conveyor belt 81 includes at least two belts 811 that are sequentially butted in the conveying direction. Generally, the belt 811 includes an endless belt body and a pulley supported inside the endless belt body. As shown in fig. 9, the conveyor belt 81 includes three belts 811 arranged in sequence in the conveying direction, and since each conveyor belt 81 is constituted by at least two belts 811, maintenance, transportation, and assembly of the conveyor belt 81 are facilitated. In addition, the running speed and the opening and closing condition of each belt 811 can be controlled respectively according to actual needs, which is beneficial to improving the applicability of the conveying belt 81. Of course, in other embodiments, the conveyor belt 81 may include 1, 5, or other number of positioning belts 811.

Further, at least two conveyor belts 81 are arranged in sequence along the direction perpendicular to the conveying direction, and the material positioning devices on the adjacent conveyor belts 81 are arranged in a staggered manner in the conveying direction, so that collision of the progressive devices caused by action in the direction perpendicular to the conveying direction is avoided, or collision of the mechanical hands 7 with each other in the material taking and placing process is reduced.

It should be noted that, because the operation conditions required by the conveyor belts 81 may not be completely consistent, the controller preferably controls the conveyor belts 81 independently, and the conveyor belts 81 operate independently without affecting each other.

Further, the printing platform 65, the hot air box 61, the cleaning mechanism 62, and the ink cup assembly 63 are sequentially arranged in parallel to the conveying direction, as shown in fig. 1. The pad head is movable in parallel to the transport direction over the printing platform 65, the hot air box 61, the cleaning mechanism 62 and the ink cup assembly, and the pad head is capable of lifting movement. In addition, the pad printing component can respectively correspond to a conveyor belt and a manipulator, so that the pad printing component can respectively acquire materials according to the processing speed of the pad printing component. As shown in fig. 9, 4 pad printing modules, 4 conveyor belts 81 and 4 manipulators 7 are provided, and the pad printing modules, the conveyor belts 81 and the manipulators 7 are matched in a one-to-one correspondence. Of course, in other embodiments, the positions of the printing platform 65, the hot air box 61, the cleaning mechanism 62 and the ink cup assembly 63 may be interchanged, and the printing platform 65, the hot air box 61, the cleaning mechanism 62 and the ink cup assembly 63 may be arranged in sequence along the direction parallel to the conveying direction.

the conveying belt 81 conveys the glass to be pad-printed towards a specified conveying direction, when the glass moves to a preset pad-printing position, the first telescopic device 83 in front of the conveying belt 81 rises to block the glass so as to limit the glass to move forward continuously, and then the clamping devices 810 on the two sides of the conveying belt approach towards the middle to clamp the glass so as to realize the positioning of the glass;

the manipulator 7 moves downwards to suck the glass, then ascends, and then moves towards the printing platform 65 until the glass is placed on the printing platform 65;

the first platform positioning device and the second platform positioning device position the glass so as to realize automatic precise alignment of the glass and the pad printing patterns on the pad printing head;

the robot 7 sucks the printed glass and takes a new glass, and the pad moves to the cleaning mechanism 62 to clean the ink on the pad, and then the next cycle is performed.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The pad printing machine provided by the utility model is described in detail above. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. A pad printing machine, comprising:

the conveying belt assembly (8) comprises a conveying belt (81), a material positioning device is arranged on the side surface of the conveying belt (81), the material positioning device comprises a first telescopic device (83) which is arranged on the side surface of the conveying belt (81) and can be stretched and retracted vertically to the belt surface of the conveying belt (81), and the first telescopic device (83) is used for blocking a corresponding conveying piece comprising materials from continuing to convey after the first telescopic device extends out vertically to the belt surface of the conveying belt (81) so as to position the corresponding conveying piece at a preset material taking position on the conveying belt (81) in the conveying direction of the conveying belt (81);

a pad printing component arranged on the lateral surface of the conveyor belt component (8) and used for executing pad printing operation;

a manipulator (7) for transferring material in the conveyor between the pad printing assembly and the predetermined picking position.

2. Pad printing machine according to claim 1, characterized in that the material positioning device further comprises a second telescopic device (86) arranged at the side of the conveyor belt (81) and capable of being telescopic perpendicular to the belt surface of the conveyor belt (81) for blocking the corresponding conveyor member from further conveying after extending perpendicular to the belt surface of the conveyor belt (81) so as to position the conveyor member on the conveyor belt (81) in the conveying direction beyond the preset material taking position.

3. Pad printing machine according to claim 1, characterized in that the material positioning means further comprise a limit guide (85), the limit guide (85) being staggered with respect to the conveyor belt (81) along a direction perpendicular to the conveying direction; the adjacent limiting guide rails (85) are matched with each other to guide the conveying piece between the two limiting guide rails in the conveying direction.

4. Pad printing machine according to claim 1, characterized in that said material positioning means further comprise gripping means (810), said gripping means (810) being arranged in succession to said first telescopic means (83) along the conveying direction of said conveyor belt (81); the clamping device (810) can be extended and retracted parallel to the belt surface and perpendicular to the conveying direction and clamps the conveying element after the extension.

5. Pad printing machine according to claim 4, characterized in that said material positioning means further comprise a second conveyor sensor (89), said first telescopic means (83), said gripping means (810) and said second conveyor sensor (89) being electrically connected to a controller, respectively; the second conveyor sensor (89) is used for sensing whether the conveyor exists or not; the controller is used for controlling the extension of the first telescopic device (83) and the clamping action of the clamping device (810) according to the detection result of the second conveying piece sensor (89).

6. Pad printing machine according to any one of claims 1 to 5, characterized in that the pad printing assembly comprises a printing table (65), the printing table (65) comprising a support (2) for supporting the item (1) and a plurality of first table positioning means, each for gripping and positioning the item (1) along a corresponding preset positioning direction perpendicular to the supporting direction of the support (2).

7. The pad printing machine according to claim 6, wherein at least one of the first platform positioning devices is an adjustable platform positioning device, the adjustable platform positioning device comprises an adjustable positioning driving device, a first fixed positioning portion and an adjustable positioning portion, the first fixed positioning portion is fixed on the output portion of the adjustable positioning driving device, the adjustable positioning portion is rotatably connected to the output portion of the adjustable positioning driving device, the rotation center of the adjustable positioning driving device is parallel to the supporting direction, and the first fixed positioning portion and the adjustable positioning portion are arranged on two sides of the supporting seat (2) so as to be close to each other along a corresponding preset positioning direction under the driving of the adjustable positioning driving device to clamp and position the material (1).

8. The pad printer of claim 7, wherein the first stage positioning device further comprises a fixed stage positioning device having a preset positioning direction perpendicular to the preset positioning direction of the adjustable stage positioning device; the fixed platform positioning device comprises a fixed positioning driving device and two second fixed positioning parts fixed on an output part of the fixed positioning driving device, and the two second fixed positioning parts are arranged on two sides of the supporting seat (2) so as to be close to each other along a corresponding preset positioning direction under the driving of the fixed positioning driving device to clamp and position the material (1).

9. The pad printing machine according to claim 6, wherein each of the first platform positioning devices further comprises a positioning portion sensor, the positioning portion sensor is used for sensing a positioning portion of the first platform positioning device, the positioning portion sensor and a positioning driving device of the first platform positioning device, the positioning driving device is used for driving the positioning portion to move along a corresponding preset positioning direction, the positioning driving device is electrically connected to a controller, and the controller is used for controlling starting and stopping of the corresponding positioning driving device according to a sensing result of the positioning portion sensor.

10. Pad printing machine according to claim 6, characterized in that the printing table (65) is fixed on the output of a second table positioning device which can drive the printing table (65) in a movement perpendicular to the support direction to adjust the position of the printing table (65).