An automatic marking machine

Abstract

This utility model discloses an automatic marking machine, comprising: a conveyor belt on a worktable, a feeding mechanism, a discharging mechanism, and a marking machine respectively arranged at both ends and the middle of the conveyor belt; and a positioning detection mechanism electrically connected to the conveyor belt and the marking machine. The positioning detection mechanism includes: a workpiece type identification module, a workpiece position identification module, and a correction and limiting mechanism. The automatic marking machine feeds and discharges workpieces at both ends of the worktable through the feeding and discharging mechanisms, and transfers workpieces on the worktable via the conveyor belt. The positioning detection mechanism notifies the marking machine to operate when the workpiece approaches the marking machine. The workpiece type identification module identifies the type of workpiece before marking, thereby enabling the marking machine to retrieve the appropriate marking text for marking. The workpiece position identification module monitors the position of the workpiece on the conveyor belt, thereby ensuring that marking is performed within the specified area of ​​the workpiece. The correction and limiting mechanism ensures that the workpiece is in a stable posture during marking.

Description

Technical Field

[0001] This utility model belongs to the field of automatic marking machine technology, and more specifically, relates to an automatic marking machine. Background Technology

[0002] A pneumatic marking machine is a computer-controlled printing needle that moves along a preset trajectory in the X and Y two-dimensional plane. At the same time, the printing needle performs high-frequency impact motion under the drive of compressed air, ultimately forming a permanent mark with a certain depth on the surface of the workpiece. Its marking characteristics include controllable depth and direct output of marking content via computer. It is widely used for marking information such as product batch numbers, models, and QR codes.

[0003] The traditional operation of pneumatic marking machines requires a series of tasks, including loading and unloading workpieces, determining the workpiece model, retrieving workpiece marking information, and performing the marking operation. This method has significant drawbacks: firstly, for large production lines, manual loading and unloading can easily lead to low production efficiency and increased labor costs; secondly, because different batches of workpieces have high similarity in appearance, manual operation can easily result in errors in selecting marking information (such as marking a workpiece of model A as model B), and manual transfer of workpieces may cause positioning deviations, further leading to marking position offsets and affecting the readability and aesthetics of the product markings. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic marking machine that solves the problems of heavy manual labor and high error rates in manual marking.

[0005] To achieve the above objectives, this utility model provides an automatic marking machine, comprising: A workbench is provided with a conveyor belt. A feeding mechanism, a discharging mechanism, and a marking machine are respectively provided at both ends and in the middle of the conveyor belt. The conveyor belt is used to make the workpiece pass through the feeding mechanism, the marking machine, and the discharging mechanism in sequence. The arrival detection mechanism is electrically connected to the conveyor belt and the marking machine, and includes: A workpiece type identification module, which is used to identify the type of workpiece; A workpiece position recognition module is used to identify the relative position of the workpiece on the conveyor belt and the marking head; A correction and limiting mechanism is used to fix the workpiece.

[0006] Optionally, the conveyor belt has a weight sensing module.

[0007] Optionally, the feeding mechanism includes a mechanical gripper or a conveyor belt.

[0008] Optionally, the correction and limiting mechanism includes pneumatic grippers disposed opposite to each other on both sides of the conveyor belt.

[0009] Optionally, the workpiece position recognition module is a photoelectric sensor, which is disposed at the fixed end of the pneumatic gripper.

[0010] Optionally, the workpiece type identification module is an image recognition camera or a barcode scanner, and the workpiece type identification module is located on the side of the marking machine near the feeding mechanism.

[0011] Optionally, two photoelectric sensors are provided, with the two photoelectric sensors located at opposite ends of the pneumatic gripper.

[0012] Optionally, the workbench is provided with a rejection mechanism and a rejection channel near the workpiece type identification module.

[0013] Optionally, the rejection mechanism is a horizontally arranged telescopic rod, and the rejection channel is an inclined ramp.

[0014] Optionally, the conveyor belt is a link-type conveyor belt.

[0015] This utility model provides an automatic marking machine, the advantages of which are: This automatic marking machine uses a feeding mechanism and an unloading mechanism to load and unload workpieces at both ends of the worktable. Workpieces are transferred on the worktable via a conveyor belt, and the marking machine marks the workpieces during transport. A positioning detection mechanism notifies the marking machine to activate when a workpiece approaches. A workpiece type identification module identifies the type of workpiece before marking, allowing the marking machine to retrieve the appropriate marking text. A workpiece position identification module monitors the workpiece's position on the conveyor belt, ensuring marking is done within the designated area, improving aesthetics and ease of viewing. A correction and limit mechanism ensures the workpiece remains in a stable position during marking.

[0016] This automatic marking machine, combined with the loading and unloading mechanism, facilitates automatic and continuous marking, replacing manual operation, avoiding incorrect selection of marking information during manual operation, and reducing the physical burden of moving workpieces during manual marking.

[0017] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0019] Figure 1 A top view of an automatic marking machine according to an embodiment of the present invention is shown.

[0020] Figure 2 A front view of an automatic marking machine according to an embodiment of the present invention is shown.

[0021] Explanation of reference numerals in the attached figures: 1. Conveyor belt; 2. Marking machine; 3. Workpiece type identification module; 4. Workpiece position identification module; 5. Correction and limit mechanism; 6. Rejection mechanism; 7. Ramp. Detailed Implementation

[0022] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0023] like Figure 1-2 As shown, an automatic marking machine includes: A workbench is provided with a conveyor belt 1. The two ends and the middle of the conveyor belt 1 are respectively provided with a feeding mechanism, a discharging mechanism and a marking machine 2. The conveyor belt 1 is used to make the workpiece pass through the feeding mechanism, the marking machine 2 and the discharging mechanism in sequence. The arrival inspection mechanism is electrically connected to conveyor belt 1 and marking machine 2, and includes: Workpiece type identification module 3 is used to identify the type of workpiece; Workpiece position recognition module 4 is used to identify the relative position of the workpiece on the conveyor belt 1 and the marking head. Correction and limiting mechanism 5 is used to fix the workpiece.

[0024] Specifically, the loading and unloading mechanisms load and unload workpieces from both sides of the worktable. The conveyor belt 1 transfers the workpieces on the worktable, and the marking machine 2 marks the workpieces during transport. A positioning detection mechanism notifies the marking machine 2 to activate when the workpiece approaches. The workpiece type identification module 3 identifies the type of workpiece before marking, allowing the marking machine 2 to retrieve the appropriate marking text. The workpiece position identification module 4 monitors the position of the workpiece on the conveyor belt 1, ensuring marking is done within the designated area of ​​the workpiece. This results in similar marking positions for each workpiece, improving aesthetics and ease of viewing. A correction and limiting mechanism 5 ensures the workpiece remains in a stable position during marking.

[0025] Furthermore, the testing mechanism, conveyor belt 1, and marking machine 2 are all under unified control by a computer. The computer can make the device run automatically according to preset parameters, reducing the manual burden, ensuring marking efficiency and product qualification rate, and adapting to large-scale continuous use or small-batch mixed use of various types of workpieces.

[0026] The control computer uses the workpiece type identification module 3 to identify at least one of the workpiece's size, color, shape, packaging QR code, etc., to determine the type of the workpiece.

[0027] In this embodiment, the conveyor belt 1 has a weight sensing module.

[0028] Specifically, conveyor belt 1 is used in standby mode via a weight sensing module. When the feeding mechanism transports the workpiece to conveyor belt 1, the weight sensing module sends a signal to notify conveyor belt 1 to start. When the last workpiece leaves conveyor belt 1, the weight sensing module sends a signal to notify conveyor belt 1 to go into standby mode, reducing wear and energy consumption caused by continuous operation of conveyor belt 1 in standby mode.

[0029] Furthermore, the weight sensing module is preferably installed on the drive wheels connected to the belt chain at both ends of the conveyor belt 1. The workpiece is placed and removed from the end of the conveyor belt 1, thereby monitoring the weight change at the end of the conveyor belt 1.

[0030] Furthermore, photoelectric sensors can be used to monitor whether there is a workpiece at the end of conveyor belt 1. In this case, conveyor belt 1 needs to be delayed for at least one cycle before being shut down.

[0031] In this embodiment, the feeding mechanism includes a mechanical gripper or a conveyor belt.

[0032] Specifically, material is fed by adjusting the rotation speed of conveyor belt 1 and the marking time of marking machine 2, or by transferring material using a robotic arm.

[0033] In this embodiment, the correction and limiting mechanism 5 includes pneumatic grippers disposed on opposite sides of the conveyor belt 1.

[0034] Specifically, the two pneumatic grippers move relative to each other, clamping and fixing the workpiece during the marking process of the marking machine 2, preventing the workpiece from moving during the marking process and affecting the marking effect.

[0035] Furthermore, to accommodate workpieces of different sizes, the pneumatic gripper is equipped with a buffer pad and a contact sensor to ensure contact with the workpiece and maintain a certain clamping force, thus avoiding over-clamping and unstable clamping.

[0036] In this embodiment, the workpiece position identification module 4 is a photoelectric sensor, which is installed at the fixed end of the pneumatic gripper.

[0037] Specifically, the workpiece moves along the conveyor belt 1 and triggers the workpiece position recognition module 4 when it passes the photoelectric sensor, which in turn activates the pneumatic gripper to clamp and restrict the workpiece's movement.

[0038] In this embodiment, the workpiece type identification module 3 is an image recognition camera or a barcode scanner, and the workpiece type identification module 3 is located on the side of the marking machine 2 near the feeding mechanism.

[0039] Specifically, the workpiece is identified by a camera in conjunction with artificial intelligence, or by scanning the barcodes or QR codes on the workpiece with a barcode scanner to obtain workpiece information. When using a barcode scanner, the workpiece posture needs to be adjusted in advance during loading.

[0040] Furthermore, the workpieces include bare workpieces or workpieces with packaging. The marking machine 2 can mark the corresponding product batch number, sales information, etc. on the packaging box of the workpiece according to the packaging information.

[0041] In this embodiment, two photoelectric sensors are provided, located at both ends of the pneumatic gripper.

[0042] Specifically, the gripping range of the pneumatic gripper is limited by two photoelectric sensors. As the workpiece moves along conveyor belt 1, one photoelectric sensor is triggered to indicate that the workpiece is approaching, and then the other photoelectric sensor is triggered. At this time, the pneumatic gripper moves to ensure that the workpiece is in the effective gripping area of ​​the pneumatic gripper, which is suitable for workpieces of different lengths.

[0043] Furthermore, it can be used in conjunction with a delay module to adapt to marking of longer workpieces at different positions.

[0044] In this embodiment, a rejection mechanism 6 and a rejection channel are provided on the workbench near the workpiece type identification module 3.

[0045] Specifically, the rejection mechanism 6 rejects unidentified or defective workpieces on the conveyor belt 1.

[0046] Furthermore, when the marking machine 2 stores only one type of marking information, the camera or barcode scanner will only operate when a qualified workpiece is scanned. If the workpiece is unqualified, the rejection mechanism 6 will reject the corresponding workpiece to prevent unqualified workpieces or other mixed workpieces from entering the machine.

[0047] In this embodiment, the rejection mechanism 6 is a horizontally arranged telescopic rod, and the rejection channel is an inclined ramp 7.

[0048] Specifically, the unidentified workpiece is kicked off the conveyor belt 1 by the telescopic rod, and the workpiece slides down the ramp 7 to avoid obstructing the movement of the conveyor belt 1.

[0049] In this embodiment, conveyor belt 1 is a chain-link conveyor belt.

[0050] Specifically, the chain-link conveyor belt 1 ensures support and prevents the workpiece from shaking up and down during marking, thus affecting the marking effect.

[0051] In this embodiment, an automatic marking machine is used, taking the workpiece as an example: Feeding: The workpiece enters the conveyor belt 1 via the conveyor belt. The conveyor belt 1 starts to start when the weight sensing module detects the arrival of the workpiece. Identification: Conveyor belt 1 conveys the workpiece to marking machine 2 and unloading mechanism. When the workpiece approaches marking machine 2, workpiece type identification module 3 identifies the type of workpiece and then controls the computer to retrieve the corresponding marking information. If the workpiece recognition fails, the unrecognizable workpiece will be rejected by the rejection mechanism 6 through the rejection channel. After multiple workpieces are rejected, an alarm will be triggered, and the rejection track will be connected to the recycling box. Marking: As the workpiece continues to move with the conveyor belt 1, the workpiece position recognition module 4 detects that the workpiece has moved to the area directly below the marking machine 2. The correction and limit mechanism 5 then activates and clamps the workpiece with two pneumatic grippers. After that, the marking machine 2 marks the workpiece according to the marking information. The workpiece first triggers the first photoelectric sensor, indicating that the workpiece is close to the marking machine 2. When the workpiece touches the second photoelectric sensor, it indicates that the workpiece has entered the marking area. When both the first and second photoelectric sensors return to normal, the workpiece is marked to leave the marking area and waits for the next workpiece to enter. Simultaneously, the two photoelectric sensors calibrate against each other. If their trigger histories differ, it is determined that the photoelectric sensor is damaged (the triggering process resumes when the workpiece blocks the photoelectric sensor until it leaves the sensor). Unloading: After marking, the correction and limit mechanism 5 releases the workpiece, allowing it to approach the unloading mechanism and be taken away; When the last workpiece leaves conveyor belt 1 and no new workpiece is added after the conveyor belt completes one revolution, it enters standby mode.

[0052] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An automatic marking machine, characterized in that, include: A workbench is provided with a conveyor belt. A feeding mechanism, a discharging mechanism, and a marking machine are respectively provided at both ends and in the middle of the conveyor belt. The conveyor belt is used to make the workpiece pass through the feeding mechanism, the marking machine, and the discharging mechanism in sequence. The arrival detection mechanism is electrically connected to the conveyor belt and the marking machine, and includes: A workpiece type identification module, which is used to identify the type of workpiece; A workpiece position recognition module, which is used to identify the relative position of the workpiece on the conveyor belt and the marking head; A correction and limiting mechanism is used to fix the workpiece.

2. The automatic marking machine according to claim 1, characterized in that, The conveyor belt has a weight sensing module.

3. The automatic marking machine according to claim 1, characterized in that, The feeding mechanism includes a mechanical gripper or a conveyor belt.

4. The automatic marking machine according to claim 1, characterized in that, The correction and limiting mechanism includes pneumatic grippers that are positioned opposite each other on both sides of the conveyor belt.

5. The automatic marking machine according to claim 4, characterized in that, The workpiece position identification module is a photoelectric sensor, which is installed at the fixed end of the pneumatic gripper.

6. The automatic marking machine according to claim 1, characterized in that, The workpiece type identification module is an image recognition camera or a barcode scanner, and the workpiece type identification module is located on the side of the marking machine near the feeding mechanism.

7. The automatic marking machine according to claim 5, characterized in that, Two photoelectric sensors are provided, and the two photoelectric sensors are respectively located at both ends of the pneumatic gripper.

8. The automatic marking machine according to claim 1, characterized in that, The workbench is equipped with a rejection mechanism and a rejection channel near the workpiece type identification module.

9. The automatic marking machine according to claim 8, characterized in that, The rejection mechanism is a horizontally arranged telescopic rod, and the rejection channel is an inclined ramp.

10. The automatic marking machine according to claim 1, characterized in that, The conveyor belt is a chain-link conveyor belt.

Images