CN215044446U

CN215044446U - Visual labeling machine

Info

Publication number: CN215044446U
Application number: CN202120325630.1U
Authority: CN
Inventors: 谢大溢
Original assignee: Dongguan Baxida Electronic Technology Co ltd
Current assignee: Dongguan Baxida Intelligent Technology Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-07
Anticipated expiration: 2031-02-05

Abstract

The utility model relates to a visual labeling machine, include: feeding mechanism, positioning mechanism, subsides mark mechanism and control mechanism. The feeding mechanism comprises: the first guide rail, second guide rail and interval adjustment assembly. The positioning mechanism includes: the device comprises a baffle, a material blocking driver and a material clamping sensor. The baffle is located between the first guide rail and the second guide rail. The material blocking driver is used for driving the baffle to act. Labeling mechanism includes: manipulator, first camera, and second camera. The manipulator is provided with a suction nozzle. The first camera is connected to the manipulator. The second camera is located below the manipulator. Above-mentioned visual labeling machine under control mechanism's coordination, realizes the automatic pay-off and the accurate positioning of PCB board through feeding mechanism and positioning mechanism cooperation, and labeling mechanism sets up the automation and the snatching and attaching of high accuracy that manipulator and visual detection device realized the label, has to paste advantages such as mark precision height, work efficiency height and paste mark stable quality.

Description

Visual labeling machine

Technical Field

The utility model relates to a PCB board pastes mark equipment technical field, especially relates to a vision labeller.

Background

In the circuit board production industry, labeling (e.g., information such as production date, batch number, and inkjet bar code) is required on a PCB.

At present, a plurality of domestic enterprises label the PCB by adopting a manual and semi-automatic labeling mode, the quality of the labeled product is lower, the quality consistency is poor, the efficiency is low, and the manual labeling mode is still difficult to meet the requirement of high-quality processing. Thus, conventional labelling machines exist: the labeling precision is low, the working efficiency is low, and the labeling quality is unstable.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a visual labeling machine under control mechanism's coordination, realizes the automatic pay-off and the accurate positioning of PCB board through feeding mechanism and positioning mechanism cooperation, and labeling mechanism sets up the automation that manipulator and visual detection device realized the label and snatchs with attached with the high accuracy, has and pastes mark precision height, work efficiency height and paste advantages such as mark steady quality.

A visual labeling machine comprising:

a feeding mechanism; the feeding mechanism comprises: the device comprises a first guide rail, a second guide rail and a spacing adjusting assembly; the first guide rail is parallel to the second guide rail; at least one of the first guide rail and the second guide rail is arranged in a sliding manner, and the sliding direction is orthogonal to the extending direction of the first guide rail; the distance adjusting assembly is used for adjusting the distance between the first guide rail and the second guide rail; a first conveyor belt is arranged on the inner side of the first guide rail; a second conveyor belt is arranged on the inner side of the second guide rail;

a positioning mechanism; the positioning mechanism includes: the device comprises a baffle, a material blocking driver and a material clamping sensor; the baffle is positioned between the first guide rail and the second guide rail; the material blocking driver is used for driving the baffle to act;

a labeling mechanism; labeling mechanism includes: the system comprises a manipulator, a first camera and a second camera; the manipulator is provided with a suction nozzle for adsorbing the label; the first camera is connected to the manipulator and is used for shooting mark points on the PCB; the second camera is positioned below the manipulator and is used for shooting the label adsorbed on the suction nozzle; and

a control mechanism; the control mechanism is respectively connected with the feeding mechanism, the positioning mechanism and the labeling mechanism.

Above-mentioned visual labeling machine, the during operation, the PCB board is placed and is circulated on first conveyer belt and second conveyer belt, when the PCB board circulation arrives the subsides mark position of predetermineeing, intercepts through the baffle. And then, the first guide rail and the second guide rail are driven by the spacing adjusting assembly to mutually approach to clamp and position the PCB. Then, a first camera positioned on the manipulator shoots mark points on the PCB, so that the PCB is identified and positioned. And then, the manipulator grabs the label through the suction nozzle, and the second camera shoots the label, detects whether the suction nozzle is empty and detects whether the state of the label meets the labeling requirement. After visual inspection through first camera and second camera, the manipulator is attached on the PCB board with the label. Through the design, under the coordination of the control mechanism, the automatic feeding and the accurate positioning of the PCB are realized through the matching of the feeding mechanism and the positioning mechanism, the labeling mechanism is provided with the mechanical arm and the visual detection device to realize the automatic and high-precision grabbing and attaching of the label, and the labeling mechanism has the advantages of high labeling precision, high working efficiency, stable labeling quality and the like.

In one embodiment, the spacing adjustment assembly comprises: the distance adjusting driver is connected with the transmission part; the transmission part is connected with the first guide rail and/or the second guide rail; the distance adjusting driver is used for driving the first guide rail and/or the second guide rail to move through the transmission piece so as to adjust the distance between the first guide rail and the second guide rail. The distance adjusting driver provides power, the transmission part drives the first guide rail and/or the second guide rail to move, the purpose of adjusting the distance between the first guide rail and the second guide rail is achieved, the distance adjusting device can be suitable for PCBs with different widths, and the purpose of clamping and positioning the PCBs can be achieved.

In one embodiment, the pitch adjustment drive is a motor; the driving medium includes: the screw rod and a nut sleeve are sleeved with the screw rod; the screw rod is orthogonal to the first guide rail; the nut sleeve is arranged on the first guide rail and/or the second guide rail; or

The distance adjusting driver is a cylinder connected with the first guide rail or the second guide rail; the transmission part is a guide rod which is arranged on the first guide rail or the second guide rail in a penetrating way.

And selecting a corresponding transmission piece for transmission according to the type of the distance adjusting driver. The motor and the screw rod matched structure is high in precision, good in stability and large in adjustable range. The structure of the matching of the cylinder and the guide rod has simple structure, easy control and low cost.

In one embodiment, the feeding mechanism further comprises: a feed sensor; the feeding sensor is located at the feeding end of the first guide rail. The feeding sensor can detect whether a PCB enters between the first guide rail and the second guide rail or not, and sends a starting signal to the material blocking driver in the positioning mechanism, so that the baffle can move in advance to accurately intercept the PCB.

In one embodiment, the feeding mechanism further comprises: the discharging assembly is positioned at the feeding end of the first guide rail, and the discharging sensor is positioned at the discharging end of the first guide rail; the blowing subassembly includes: a discharging plate and a discharging driver connected with the discharging plate. When the PCB exists between the first guide rail and the second guide rail, the discharging assembly can intercept subsequent PCBs outside the first guide rail and the second guide rail, and material distribution is achieved.

In one embodiment, the number of the suction nozzles is multiple; the quantity of second camera is a plurality of and sets up with the suction nozzle one-to-one. A plurality of labels can once be snatched to a plurality of suction nozzles, can accomplish fast and paste the mark operation to the PCB board that has a plurality of subsides mark positions or the makeup that has a plurality of PCB boards.

In one embodiment, the labeling mechanism further comprises: the third camera is positioned below the manipulator and used for shooting the label adsorbed on the suction nozzle; the resolution of the third camera is greater than that of the second camera; the resolution of the third camera is not less than 720P. When the label is smaller or the labeling precision requirement is higher, the second camera can be replaced by the high-definition third camera with higher resolution, and the label is visually detected.

In one embodiment, the visual labeling machine further comprises: a label feeding mechanism; the label feeding mechanism is used for conveying labels for the mechanical arm. Set up label feeding mechanism and can provide the label for the manipulator continuously, improve work efficiency and degree of automation.

In one embodiment, the visual labeling machine further comprises: a frame; the feeding mechanism, the positioning mechanism, the labeling mechanism and the control mechanism are all arranged on the rack; the frame is provided with a protective cover; the feeding mechanism, the positioning mechanism and the labeling mechanism are all positioned in the protective cover; a feed inlet butted with the feed end of the first guide rail is formed in one side of the protective cover; the opposite side of safety cover is equipped with the discharge gate of the discharge end of butt joint first guide rail. The frame is used for bearing each functional mechanism to be equipped with the safety cover of protection PCB board and label, strengthen the interference killing feature who pastes the mark operation.

In one embodiment, the bottom of the frame is provided with a roller and a foot pad; the foot pad is arranged in a lifting adjustable manner. The rollers facilitate transfer of the equipment, and the foot pads can stabilize the equipment at a designated station.

Drawings

Fig. 1 is a schematic view of a visual labeling machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of another perspective of the visual labeling machine shown in FIG. 1;

FIG. 3 is a partial view of the visual labeling machine shown in FIG. 1;

FIG. 4 is a partial view of another perspective of the visual labeling machine shown in FIG. 3;

FIG. 5 is a schematic view of a feed mechanism and a positioning mechanism in the visual labeling machine shown in FIG. 3;

fig. 6 is a partial view of a labeling mechanism in the visual labeling machine shown in fig. 3.

The meaning of the reference symbols in the drawings is:

100-visual labeling machine;

10-a feeding mechanism, 11-a first guide rail, 12-a second guide rail, 13-a spacing adjusting component, 131-a transmission piece, 1311-a screw rod;

20-a positioning mechanism, 21-a material blocking driver and 22-a material clamping sensor;

30-labeling mechanism, 31-manipulator, 311-suction nozzle, 32-first camera, 33-second camera and 34-third camera;

40-a control mechanism;

50-frame, 51-protective cover, 52-foot pad.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, 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 simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only 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 "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 6, it is a visual labeling machine 100 according to an embodiment of the present invention.

As shown in fig. 1 to 4, the visual labeling machine 100 includes: a feeding mechanism 10, a positioning mechanism 20, a labeling mechanism 30, and a control mechanism 40. The control mechanism 40 is used for controlling the actions of the feeding mechanism 10, the positioning mechanism 20 and the labeling mechanism 30, so that the mechanisms are matched with each other. The feeding mechanism 10 is used for circulating the PCB, and the positioning mechanism 20 and the feeding mechanism 10 are matched with each other to position the PCB at a preset position for labeling. The labeling mechanism 30 is used for grabbing the label and attaching the label on the PCB, and the labeling mechanism 30 has a visual inspection function and can visually inspect the PCB and the label.

The visual labeling machine 100 is further described below with reference to fig. 1 to 6.

As shown in fig. 3 to 5, the feeding mechanism 10 includes: a first guide rail 11, a second guide rail 12, and a spacing adjustment assembly 13. Wherein the first guide rail 11 is parallel to the second guide rail 12. At least one of the first rail 11 and the second rail 12 is slidably disposed, and a sliding direction is orthogonal to an extending direction of the first rail 11. The spacing adjustment assembly 13 is used to adjust the spacing between the first rail 11 and the second rail 12. A first conveyor belt (not shown) is provided inside the first guide rail 11. A second conveyor belt (not shown) is provided inside the second guide rail 12.

As shown in fig. 5, in the present embodiment, the first guide rail 11 is fixedly disposed, and the second guide rail 12 is slidably disposed.

Further, the spacing adjustment assembly 13 may include: a transmission member 131 and a distance adjustment drive (not shown) connected to the transmission member 131. The transmission member 131 is connected to the first rail 11 and/or the second rail 12. The distance adjusting driver is used for driving the first guide rail 11 and/or the second guide rail 12 to move through the transmission piece 131 so as to adjust the distance between the first guide rail 11 and the second guide rail 12. The distance adjusting driver provides power, the first guide rail 11 and/or the second guide rail 12 are driven to move through the transmission piece 131, the purpose of adjusting the distance between the first guide rail 11 and the second guide rail 12 is achieved, the PCB clamping device can be suitable for PCBs with different widths, and the purpose of clamping and positioning the PCBs can be achieved.

For example, in the present embodiment, since the first rail 11 is fixedly disposed, the distance adjustment driver and the transmission member 131 only need to drive the second rail 12 to slide.

Further, as shown in fig. 5, in the present embodiment, the pitch adjustment driver is a motor. The transmission member 131 includes: a screw 1311 and a nut sleeve (not shown) for receiving the screw 1311. The screw 1311 is orthogonal to the first rail 11. The nut sleeve is mounted on the second rail 12. In other embodiments, the spacing adjustment drive is a pneumatic cylinder connected to the second rail 12. The transmission member 131 is a guide rod passing through the second guide rail 12.

Depending on the type of distance adjustment drive, the respective transmission element 131 is selected for the drive. The structure of the motor matched with the screw 1311 is high in precision, good in stability and large in adjustable range. The structure of the matching of the cylinder and the guide rod has simple structure, easy control and low cost.

As shown in fig. 5, the positioning mechanism 20 includes: a baffle (not shown), a material stop driver 21 and a material clamping sensor 22. Wherein the baffle is located between the first rail 11 and the second rail 12. The material blocking driver 21 is used for driving the baffle plate to move.

In other embodiments, the feeding mechanism 10 may further include: a feed sensor. The feed sensor is located at the feed end of the first rail 11. The feeding sensor can detect whether a PCB board enters between the first guide rail 11 and the second guide rail 12, and send a start signal to the blocking driver 21 in the positioning mechanism 20, so that the blocking plate can move in advance to accurately intercept the PCB board.

Furthermore, in other embodiments, the feeding mechanism 10 may further include: a discharging component positioned at the feeding end of the first guide rail 11 and a discharging sensor positioned at the discharging end of the first guide rail 11. The blowing subassembly includes: a discharging plate and a discharging driver connected with the discharging plate. When there are PCBs between the first guide rail 11 and the second guide rail 12, the discharging assembly may intercept subsequent PCBs outside the first guide rail 11 and the second guide rail 12, so as to distribute the PCBs.

As shown in fig. 3 and 6, the labeling mechanism 30 includes: a robot hand 31, a first camera 32, and a second camera 33. The robot hand 31 is provided with a suction nozzle 311 for sucking a label. The first camera 32 is connected to the manipulator 31 and is used for shooting mark points on the PCB. The second camera 33 is located below the robot arm 31 and is used to photograph a label adsorbed on the adsorption nozzle 311.

As shown in fig. 3 and 5, in the present embodiment, the number of the suction nozzles 311 is four, and the number of the second cameras 33 is four and is provided in one-to-one correspondence with the suction nozzles 311. The plurality of suction nozzles 311 can grab a plurality of labels at a time, and can quickly complete labeling operation on a PCB with a plurality of labeling positions or a jointed board with a plurality of PCBs.

In some application scenarios, the labels may be small or the labeling accuracy requirement is high, and the shooting under the resolution of a general camera is not clear, so that a high-definition camera may be provided for assistance. For example, as shown in fig. 3, in the present embodiment, the labeling mechanism 30 may further include: and a third camera 34 positioned below the robot arm 31 and photographing a label adsorbed on the adsorption nozzle 311. The third camera 34 has a resolution greater than that of the second camera 33. The resolution of the third camera 34 is not less than 720P. For example, in this embodiment, the third camera 34 is a 720P high-definition camera, and a 960P or 1080P high-definition camera may also be selected. When the label is small, the label can be visually detected by replacing the second camera 33 with the third camera 34 with high definition with higher resolution.

Further, based on the visual detection result of the second camera 33 or the third camera 34, a control signal may be fed back to the manipulator 31, and if it is determined that the manipulator 31 is empty, the manipulator 31 re-grabs the mark. If the label posture is judged to be incorrect, the current label can be discarded for re-label grabbing, or the posture of the manipulator 31 can be adjusted to correct the label state.

It should be noted that, in the present embodiment, only one third camera 34 is provided and is adjacently disposed on one side of the second camera 33, in consideration of the large size and high cost of the high-definition camera and the low frequency of use.

As shown in fig. 1, the control mechanism 40 is connected to the feeding mechanism 10, the positioning mechanism 20, and the labeling mechanism 30, respectively.

In other embodiments, the visual labeling machine 100 may further include: label feeding mechanism. The label feed mechanism is used to feed labels to the robot 31. The label feeding mechanism is arranged to continuously provide labels for the mechanical arm 31, so that the working efficiency and the automation degree are improved.

As shown in fig. 1 and 2, in the present embodiment, the visual labeling machine 100 further includes: a frame 50. The feeding mechanism 10, the positioning mechanism 20, the labeling mechanism 30 and the control mechanism 40 are all mounted on the frame 50. The frame 50 is provided with a protective cover 51. The feeding mechanism 10, the positioning mechanism 20 and the labeling mechanism 30 are all positioned in the protective cover 51. One side of the protective cover 51 is provided with a feed opening abutting against the feed end of the first guide rail 11. The opposite side of the protective cover 51 is provided with a discharge port abutting against the discharge end of the first guide rail 11. The rack 50 is used for bearing each functional mechanism, and is provided with a protective cover 51 for protecting the PCB and the label, so that the anti-interference capability of labeling operation is enhanced.

Further, as shown in fig. 2, in the present embodiment, rollers (not shown) and foot pads 52 are disposed at the bottom of the frame 50. The foot pad 52 is adjustable in elevation. The rollers facilitate transfer of the equipment, and the foot pads 52 stabilize the equipment at a designated station.

During operation, the PCB board is placed and is circulated on first conveyer belt and second conveyer belt, when the PCB board circulation reached the subsides mark position of predetermineeing, intercepts through the baffle. When the clamping sensor detects that the PCB has been successfully intercepted, the first guide rail 11 and the second guide rail 12 are driven by the spacing adjustment assembly 13 to move close to each other to clamp and position the PCB. Then, the first camera 32 located on the manipulator 31 shoots the mark points on the PCB, so as to identify and locate the PCB (e.g. detect whether another type of PCB is misplaced or not and detect whether the PCB is placed reversely or not). Then, the manipulator 31 grabs the label through the suction nozzle 311, the second camera 33 shoots the label, and whether the suction nozzle 311 is empty and whether the state of the label meets the labeling requirement are detected. After visual inspection by the first camera 32 and the second camera 33, the manipulator 31 attaches the label to the PCB.

The visual labeling machine 100 realizes automatic feeding and accurate positioning of the PCB board through the cooperation of the feeding mechanism 10 and the positioning mechanism 20 under the coordination of the control mechanism 40, and the labeling mechanism 30 is provided with the manipulator 31 and the visual detection device to realize automatic and high-precision grasping and attaching of labels, and has the advantages of high labeling precision, high working efficiency, stable labeling quality and the like.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A visual labeling machine, comprising:

a feeding mechanism; the feeding mechanism comprises: the device comprises a first guide rail, a second guide rail and a spacing adjusting assembly; the first guide rail is parallel to the second guide rail; at least one of the first guide rail and the second guide rail is arranged in a sliding mode, and the sliding direction is orthogonal to the extending direction of the first guide rail; the distance adjusting assembly is used for adjusting the distance between the first guide rail and the second guide rail; a first conveyor belt is arranged on the inner side of the first guide rail; a second conveyor belt is arranged on the inner side of the second guide rail;

a labeling mechanism; the labeling mechanism comprises: the system comprises a manipulator, a first camera and a second camera; the manipulator is provided with a suction nozzle for adsorbing a label; the first camera is connected to the manipulator and is used for shooting mark points on the PCB; the second camera is positioned below the manipulator and is used for shooting the label adsorbed on the suction nozzle; and

2. The visual labeling machine of claim 1, wherein said spacing adjustment assembly comprises: the distance adjusting device comprises a transmission piece and a distance adjusting driver connected with the transmission piece; the transmission part is connected with the first guide rail and/or the second guide rail; the distance adjusting driver is used for driving the first guide rail and/or the second guide rail to move through the transmission piece so as to adjust the distance between the first guide rail and the second guide rail.

3. The visual labeling machine of claim 2, wherein said pitch adjustment drive is a motor; the transmission member includes: the screw rod and the nut sleeve are sleeved with the screw rod; the screw rod is orthogonal to the first guide rail; the nut sleeve is arranged on the first guide rail and/or the second guide rail; or

The distance adjusting driver is a cylinder connected with the first guide rail or the second guide rail; the transmission part is a guide rod arranged on the first guide rail or the second guide rail in a penetrating mode.

4. The visual labeling machine of claim 1, wherein said feed mechanism further comprises: a feed sensor; the feeding sensor is positioned at the feeding end of the first guide rail.

5. The visual labeling machine of claim 4, wherein said feed mechanism further comprises: the discharging assembly is positioned at the feeding end of the first guide rail, and the discharging sensor is positioned at the discharging end of the first guide rail; the blowing subassembly includes: the device comprises a discharging plate and a discharging driver connected with the discharging plate.

6. The visual labeling machine of claim 1, wherein said suction nozzle is plural in number; the quantity of second camera be a plurality of and with the suction nozzle one-to-one sets up.

7. The visual labeling machine of claim 1, wherein the labeling mechanism further comprises: the third camera is positioned below the manipulator and used for shooting the label adsorbed on the suction nozzle; the resolution of the third camera is greater than that of the second camera; the resolution of the third camera is not less than 720P.

8. The visual labeling machine of claim 1, further comprising: a label feeding mechanism; the label feeding mechanism is used for conveying labels for the manipulator.

9. The visual labeling machine according to any one of claims 1 to 8, further comprising: a frame; the feeding mechanism, the positioning mechanism, the labeling mechanism and the control mechanism are all arranged on the rack; the frame is provided with a protective cover; the feeding mechanism, the positioning mechanism and the labeling mechanism are all positioned in the protective cover; a feed inlet butted with the feed end of the first guide rail is formed in one side of the protective cover; and a discharge hole butted with the discharge end of the first guide rail is formed in the opposite side of the protective cover.

10. The visual labeling machine of claim 9, wherein a bottom of said rack is provided with rollers and foot pads; the foot pad is arranged in a lifting adjustable mode.