Automatic marking device for steel wire seal

Abstract

The invention provides an automatic marking device for a steel wire seal, which relates to the technical field of laser marking, and comprises a bracket and a top cover, wherein a transmission component is installed on the bracket, wherein the transmission component comprises a motor 1 and a rotating roller, wherein a conveying component is installed on the rotating roller, wherein the conveying component comprises a belt and a partition, wherein a sorting component is installed on the bracket, wherein the sorting component comprises a retaining roller and a motor 2, wherein a marking component is installed on the inner side of the top cover, wherein the marking component comprises a laser marking machine and a slide rail, wherein the automatic marking device for the steel wire seal can use the partition to push a plug plate, wherein the plug plate drives the laser marking machine to move through a sleeve, so that the laser marking machine moves synchronously with the steel wire seal on the inner side of the slide rail through a slider, until the marking work is completed, and then a spring 2 pushes the laser marking machine back to its original position, and there is no need to stop the conveying work of the steel wire seal when performing the marking operation, thereby saving the transportation time and improving the work efficiency, and the device is suitable for the automatic marking of the steel wire seal.

Description

Technical Field

[0001] The invention relates to the technical field of laser marking equipment, in particular to an automatic marking device for a steel wire seal. Background Art

[0002] When producing and processing wire seals, it is necessary to mark the wire seals, and then laser marking equipment is required. The invention patent with patent application number CN201811312899.5 discloses a laser marking component, which uses an industrial camera to capture images of external panels via a light coaxial device. According to the actual thickness value of the panel, the industrial camera is focused in coordination with the movement of the first plate body and the second plate body, so that the industrial camera can capture clear images. The laser emitted by the laser generator through the laser head assembly is emitted to the light coaxial device, and the laser emitted through the light coaxial device is used to mark the panel after the industrial camera focuses and takes pictures, thereby realizing automatic laser marking of the panel and improving the marking efficiency and marking yield of the panel. The invention patent with patent application number CN202310421539.3 The patent discloses a laser marking device, which binds a locking component with a flipping component so that after the electronic components are locked and stabilized, the marked surface can be flipped or rotated through the flipping component, so that the other surface to be marked can be rotated to a horizontal level, which is convenient for the laser to perform double-sided marking. Secondly, after the locking is stabilized, the pins are limited. At this time, the power-on test component can connect the two pins and perform corresponding tests to detect whether they are finished products, thereby avoiding the laser from marking defective products and reducing the consumables of the marking machine. According to the technical solution disclosed by the patent, when the existing laser marking equipment is in use, when performing laser marking operations on wire seals, there is often a gap between the transportation of the wire seals and the marking work, which increases the working time and reduces the work efficiency. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an automatic marking device for wire seals to solve the problems raised in the above background technology. The present invention has a novel structure and diverse functions and is suitable for automatic marking of wire seals.

[0004] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an automatic marking device for a wire seal, comprising a bracket and a top cover, a transmission assembly is installed on the bracket, the transmission assembly comprises a motor 1 and a roller, a conveying assembly is installed on the roller, the conveying assembly comprises a belt and a partition, a sorting assembly is installed on the bracket, the sorting assembly comprises a stop roller and a motor 2, a marking assembly is installed on the inner side of the top cover, the marking assembly comprises a laser marking machine and a slide rail, a protective assembly is installed on the inner side of the top cover, the protective assembly comprises a pressure roller and a button 1, a moving assembly is installed on the inner side of the top cover, the moving assembly comprises a sleeve and a plug plate, a lifting assembly is installed on the inner side of the top cover, the lifting assembly comprises an electromagnet and a button 2.

[0005] Furthermore, the roller is installed on the inner side of the bracket through a bearing, the roller is installed at both ends of the bracket respectively, the motor 1 is installed on the outer side of the bracket through bolts, one end of the roller is keyed to the output shaft of motor 1, the belt is sleeved on the outer side of the roller, the partition is integrally formed on the outer side of the belt, and the partition is evenly distributed on the belt.

[0006] Furthermore, an inclined plate is installed on the top of the bracket by bolts, and the inclined plate is clamped on the top of the partition. The stop roller is installed on the top of the bracket through a bearing, and the stop roller is located on the top of the partition. The motor 2 is installed on the bracket by bolts, and one end of the stop roller is keyed to the output shaft of the motor 2.

[0007] Furthermore, the top cover is installed on the top of the bracket by bolts, the slide rail is welded to the inner wall of the top of the top cover, sliders are installed on both sides of the laser marking machine by bolts, the sliders are stuck on the inner side of the slide rail, and one side of the laser marking machine is connected to the inner wall of one side of the slide rail through spring 2.

[0008] Furthermore, a sleeve is welded on the inner wall of the top cover, a piston is clamped on the inner side of the sleeve, the top end of the piston is connected to the inner wall of the top of the sleeve through a spring, and the bottom of the piston extends to the bottom of the sleeve.

[0009] Furthermore, one end of the pressure roller is installed on the bottom of the piston through a bearing, the pressure roller is located on the top of the partition, and the button is installed on the inner wall of the top of the sleeve through bolts.

[0010] Furthermore, the sleeve is welded to one side of the laser marking machine through a support plate, the electromagnet is clamped on the inner wall of the bottom of the sleeve, the top of the plug plate is welded to the bottom of the electromagnet, the bottom of the plug plate passes through the bottom of the sleeve and extends to the top of the belt, and the bottom of the plug plate is clamped on one side of the partition.

[0011] Furthermore, the button 2 is installed on the inner wall of the top of the top cover by bolts, the button 2 is located on one side of the sleeve, and the top of the electromagnet is connected to the inner wall of the top of the sleeve by spring 3.

[0012] Furthermore, a sliding sleeve is welded on the inner wall of the other side of the sliding rail, a sliding rod is clamped on the inner side of the sliding sleeve, one end of the sliding rod passes through the sliding sleeve and is welded to the other side of the laser marking machine, and a Tesla valve is opened on the other side of the sliding rail, and the outer side of the sliding rail is unidirectionally connected with the inner side of the sliding sleeve through the Tesla valve.

[0013] Furthermore, a switch group is installed on the outer side of the top cover by bolts, and the switch group is connected to motor one, motor two, button one and button two through wires, button one is connected to the laser marking machine through wires, and button two is connected to the electromagnet through wires.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. When the automatic marking device for the wire seal is in use, the wire seals are placed one by one between the partitions on the belt. The motor 1 drives the belt to rotate through the roller, and the belt drives the partition to transport the wire seal to the inner side of the top cover. The plastic shell on the wire seal is pushed obliquely toward one end of the partition by the inclined plate under the limit of the partition, until the plastic shell on the wire seal is pressed against the inner wall of the bracket. The motor 2 drives the retaining roller to rotate. When the plastic shell on the wire seal stands upright on the top of the belt, the retaining roller pushes the plastic shell down first. The motor 2 drives the retaining roller to rotate quickly and pushes the plastic shell between the two partitions, thereby effectively placing the plastic shell on the wire seal flat in the space between the partitions on the belt, and positioning it through the inclined plate and the bracket to avoid affecting the marking quality due to the misalignment and unequal placement of the wire seal.

[0016] 2. When the automatic marking device of the wire seal is in use, after the wire seal is conveyed to the bottom of the laser marking machine, the pressure roller is pushed upward by the top of the wire seal, so that the pressure roller drives the piston to move the spring upward on the inner side of the sleeve, and the piston squeezes the button, thereby turning on the laser marking machine for marking. If the wire seal is missing between the partitions, the laser marking machine will not work, thus avoiding damage to the belt and the mechanism at the bottom, and ensuring the working safety of the equipment. When the laser marking machine is working, the partition pushes the plug plate, The plug plate drives the laser marking machine to move through the sleeve, so that the laser marking machine moves synchronously with the wire seal on the inner side of the slide rail through the slider until the marking work is completed. The sleeve squeezes button 2, and the electromagnet is energized to generate suction, so that the electromagnet compresses spring 3 and moves upward, and drives the plug plate to move upward to the top of the partition. Spring 2 pushes the laser marking machine back to its original position for subsequent wire seal marking work. There is no need to stop the delivery of the wire seal during the marking operation, thereby saving the delivery time of the wire seal and improving work efficiency.

[0017] 3. When the automatic marking device of the wire seal is in use, when the spring 2 pushes the laser marking machine to the left, the laser marking machine drives the sliding rod to be inserted into the inner side of the sliding sleeve first, and then the sliding rod compresses the air in the sliding sleeve, so that the air in the sliding sleeve slowly flows in the opposite direction through the Tesla valve, damping the movement of the laser marking machine, preventing the laser marking machine from generating aftershocks under the action of the spring 2, ensuring the working stability of the laser marking machine, and preventing the laser marking machine from driving a large collision between the plug plate and the partition at the bottom of the sleeve, ensuring the working safety of the partition and the plug plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an automatic marking device for a steel wire seal of the present invention;

[0019] Figure 2 It is a cross-sectional view of an automatic marking device for a steel wire seal according to the present invention;

[0020] Figure 3 It is a structural schematic diagram of an inclined plate of an automatic marking device for a wire seal according to the present invention;

[0021] Figure 4 It is a structural schematic diagram of a slide rail of an automatic marking device for a wire seal according to the present invention;

[0022] Figure 5 It is a structural schematic diagram of a pressure roller of an automatic marking device for a wire seal of the present invention;

[0023] Figure 6 It is a structural schematic diagram of a sliding sleeve of an automatic marking device for a wire seal according to the present invention;

[0024] In the figure: 1. bracket; 2. top cover; 3. motor 1; 4. roller; 5. belt; 6. partition; 7. inclined plate; 8. stop roller; 9. motor 2; 10. laser marking machine; 11. slide rail; 12. slider; 13. pressure roller; 14. sleeve; 15. piston; 16. spring 1; 17. button 1; 18. spring 2; 19. sleeve; 20. plug plate; 21. electromagnet; 22. spring 3; 23. button 2; 24. sleeve; 25. slide rod; 26. Tesla valve; 27. switch group. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] See also Figures 1 to 6The present invention provides a technical solution: an automatic marking device for a wire seal, comprising a bracket 1 and a top cover 2, a transmission assembly is installed on the bracket 1, the transmission assembly comprises a motor 3 and a roller 4, a conveying assembly is installed on the roller 4, the conveying assembly comprises a belt 5 and a partition 6, a tidying assembly is installed on the bracket 1, the tidying assembly comprises a stop roller 8 and a motor 9, a marking assembly is installed on the inner side of the top cover 2, the marking assembly comprises a laser marking machine 10 and a slide rail 11, the inner side of the top cover 2 A protective component is installed, and the protective component includes a pressure roller 13 and a button 17. A moving component is installed on the inner side of the top cover 2, and the moving component includes a sleeve 19 and a plug plate 20. A lifting component is installed on the inner side of the top cover 2, and the lifting component includes an electromagnet 21 and a button 23. A sliding sleeve 24 is welded on the inner wall of the other side of the slide rail 11, and a sliding rod 25 is clamped on the inner side of the sliding sleeve 24. One end of the sliding rod 25 passes through the sliding sleeve 24 and is welded to the other side of the laser marking machine 10. The other side of the slide rail 11 A Tesla valve 26 is provided on the side, and the outer side of the slide rail 11 is unidirectionally connected to the inner side of the slide sleeve 24 through the Tesla valve 26. A switch group 27 is installed on the outer side of the top cover 2 through bolts. The switch group 27 is connected to the motor 1 3, the motor 2 9, the button 1 17 and the button 2 23 through wires. The button 1 17 is connected to the laser marking machine 10 through wires, and the button 2 23 is connected to the electromagnet 21 through wires. When in use, the spring 2 18 pushes the laser marking machine 10 to the left, so that the laser marking machine 1 0 drives the slide rod 25 to be inserted into the inner side of the slide sleeve 24 first, so that the slide rod 25 compresses the air in the slide sleeve 24, so that the air in the slide sleeve 24 slowly flows in the reverse direction through the Tesla valve 26, damping the movement of the laser marking machine 10, preventing the laser marking machine 10 from generating aftershocks under the action of the spring 18, ensuring the working stability of the laser marking machine 10, and preventing the laser marking machine 10 from driving the plug plate 20 at the bottom of the sleeve 19 to generate a large collision with the partition 6, thereby ensuring the working safety of the partition 6 and the plug plate 20.

[0027] In this embodiment, the roller 4 is installed on the inner side of the bracket 1 through a bearing, and the roller 4 is installed at both ends of the bracket 1 respectively. The motor 1 3 is installed on the outer side of the bracket 1 through bolts, and one end of the roller 4 is keyed to the output shaft of the motor 1 3. The belt 5 is sleeved on the outer side of the roller 4, and the partition 6 is integrally formed on the outer side of the belt 5. The partition 6 is evenly distributed on the belt 5. The top of the bracket 1 is installed with an inclined plate 7 through bolts, and the inclined plate 7 is stuck on the top of the partition 6. The blocking roller 8 is installed on the top of the bracket 1 through a bearing, and the blocking roller 8 is located on the top of the partition 6. The motor 2 9 is installed on the bracket 1 through bolts, and one end of the blocking roller 8 is keyed to the output shaft of the motor 2 9. The top cover 2 is installed on the top of the bracket 1 through bolts, and the slide rail 11 is welded to the inner wall of the top of the top cover 2. Slide blocks 12 are installed on both sides of the laser marking machine 10 through bolts, and the slide blocks 12 are stuck in the slide rails. On the inner side of the rail 11, one side of the laser marking machine 10 is connected to the inner wall of one side of the slide rail 11 through the spring 2 18. When in use, the steel wire seals are placed one by one between the partitions 6 on the belt 5, and the motor 1 3 drives the belt 5 to rotate through the roller 4. The belt 5 drives the partition 6 to transport the steel wire seal to the inner side of the top cover 2. The plastic shell on the steel wire seal is limited by the partition 6 and is pushed obliquely by the inclined plate 7 to one end of the partition 6 until the plastic shell on the steel wire seal is tightly attached to the inner wall of the bracket 1. The motor 2 9 drives the blocking roller 8 to rotate. When the plastic shell on the steel wire seal is erected on the top of the belt 5, the blocking roller 8 pushes the plastic shell down first. The motor 2 9 drives the blocking roller 8 to rotate quickly and pushes the plastic shell between the two partitions 6, thereby effectively placing the plastic shell on the steel wire seal flat in the space between the partitions 6 on the belt 5, and positioning it through the inclined plate 7 and the bracket 1 to avoid affecting the marking quality due to the misalignment and unequal placement of the steel wire seal.

[0028] In this embodiment, a sleeve 14 is welded on the inner wall of the top cover 2, a piston 15 is clamped on the inner side of the sleeve 14, the top of the piston 15 is connected to the inner wall of the top of the sleeve 14 through a spring 16, the bottom of the piston 15 extends to the bottom of the sleeve 14, one end of the pressure roller 13 is installed on the bottom of the piston 15 through a bearing, the pressure roller 13 is located on the top of the partition 6, the button 17 is installed on the inner wall of the top of the sleeve 14 through bolts, the sleeve 19 is welded to one side of the laser marking machine 10 through a support plate, and the electromagnet 2 1 is stuck on the inner wall of the bottom of the sleeve 19, the top of the plug plate 20 is welded to the bottom of the electromagnet 21, the bottom of the plug plate 20 passes through the bottom of the sleeve 19 and extends to the top of the belt 5, the bottom of the plug plate 20 is stuck on one side of the partition 6, the button 23 is installed on the inner wall of the top of the top cover 2 by bolts, the button 23 is located on one side of the sleeve 19, the top of the electromagnet 21 is connected to the inner wall of the top of the sleeve 19 by the spring 3 22, when in use, after the wire seal is conveyed to the bottom of the laser marking machine 10, the pressure roller 13 The top of the wire seal is pushed upward, so that the pressure roller 13 drives the piston 15 to compress the spring 16 upward on the inner side of the sleeve 14, and the piston 15 squeezes the button 17, thereby turning on the laser marking machine 10 for marking. If the wire seal is missing between the partitions 6, the laser marking machine 10 will not work, avoiding damage to the belt 5 and the mechanism at the bottom, and ensuring the working safety of the equipment. When the laser marking machine 10 is working, the partition 6 pushes the plug 20, and the plug 20 drives the laser marking machine 10 to move through the sleeve 19. The laser marking machine 10 moves synchronously with the wire seal on the inner side of the slide rail 11 through the slider 12 until the marking work is completed. The sleeve 19 squeezes the button 23, and the electromagnet 21 is energized to generate suction, so that the electromagnet 21 compresses the spring 3 22 and moves upward, and drives the plug plate 20 to move upward to the top of the partition 6. The spring 2 18 pushes the laser marking machine 10 back to its original position for subsequent wire seal marking work. There is no need to stop the conveying of the wire seal during the marking operation, thereby saving the transportation time of the wire seal and improving work efficiency.

[0029] The automatic marking device for the steel wire seal provides electric energy for all electrical equipment through an external power supply. When in use, the steel wire seals are placed one by one between the partitions 6 on the belt 5. The motor 1 3 drives the belt 5 to rotate through the roller 4. The belt 5 drives the partition 6 to transport the steel wire seal to the inner side of the top cover 2. The plastic shell on the steel wire seal is limited by the partition 6 and is pushed obliquely by the inclined plate 7 toward one end of the partition 6 until the plastic shell on the steel wire seal is tightly attached to the inner wall of the bracket 1. The motor 2 9 drives the blocking roller 8 to rotate. When the plastic shell on the steel wire seal stands upright on the top of the belt 5, the blocking roller 8 pushes the plastic shell down first. The motor 2 9 drives the blocking roller 8 to rotate quickly to push the plastic shell to the two partitions. The plastic shell on the wire seal is effectively placed flat in the space between the partitions 6 on the belt 5, and is positioned by the inclined plate 7 and the bracket 1 to avoid affecting the marking quality due to the misalignment and unequal placement of the wire seal. After the wire seal is conveyed to the bottom of the laser marking machine 10, the pressure roller 13 is pushed upward by the top of the wire seal, so that the pressure roller 13 drives the piston 15 to compress the spring 16 upward on the inner side of the sleeve 14 and squeeze the button 17, thereby turning on the laser marking machine 10 for marking. If the wire seal is missing between the partitions 6, the side laser marking machine 10 will not work to avoid damage to the belt 5 and the mechanism at the bottom. To prevent damage and ensure the working safety of the equipment, when the laser marking machine 10 is working, the partition 6 pushes the plug 20, and the plug 20 drives the laser marking machine 10 to move through the sleeve 19, so that the laser marking machine 10 moves synchronously with the wire seal on the inner side of the slide rail 11 through the slider 12. After the marking work is completed, the sleeve 19 squeezes the button 23, and the electromagnet 21 is energized to generate suction, so that the electromagnet 21 compresses the spring 3 22 to move upward, and drives the plug 20 to move upward to the top of the partition 6. The spring 2 18 pushes the laser marking machine 10 back to its original position for subsequent wire seal marking work. There is no need to stop the delivery of the wire seal during the marking operation. This saves the time for transporting the wire seal and improves work efficiency. When the spring 218 pushes the laser marking machine 10 to the left, the laser marking machine 10 drives the slide rod 25 to be first inserted into the inner side of the slide sleeve 24, so that the slide rod 25 compresses the air in the slide sleeve 24, so that the air in the slide sleeve 24 slowly flows in the opposite direction through the Tesla valve 26, damping the movement of the laser marking machine 10, preventing the laser marking machine 10 from generating aftershocks under the action of the spring 218, ensuring the working stability of the laser marking machine 10, and at the same time avoiding the laser marking machine 10 driving the plug plate 20 at the bottom of the sleeve 19 to generate a large collision with the partition 6, thereby ensuring the working safety of the partition 6 and the plug plate 20.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic marking device for a wire seal, comprising a bracket (1) and a top cover (2), wherein a transmission assembly is mounted on the bracket (1), wherein the transmission assembly comprises a motor (3) and a roller (4), wherein a conveying assembly is mounted on the roller (4), wherein the conveying assembly comprises a belt (5) and a partition (6), wherein: The support (1) is provided with a tidying component, the tidying component comprising a stop roller (8) and a second motor (9); the inner side of the top cover (2) is provided with a marking component, the marking component comprising a laser marking machine (10) and a slide rail (11); the inner side of the top cover (2) is provided with a protection component, the protection component comprising a pressure roller (13) and a first button (17); the inner side of the top cover (2) is provided with a moving component, the moving component comprising a sleeve (19) and a plug plate (20); the inner side of the top cover (2) is provided with a lifting component, the lifting component comprising an electromagnet (21) and a second button (23); the top of the support (1) is provided with an inclined plate (7) by means of bolts, the inclined plate (7) being clamped on the top of the partition (6) The retaining roller (8) is mounted on the top of the bracket (1) through a bearing, the retaining roller (8) is located on the top of the partition (6), the motor 2 (9) is mounted on the bracket (1) through bolts, one end of the retaining roller (8) is key-connected to the output shaft of the motor 2 (9), the top cover (2) is mounted on the top of the bracket (1) through bolts, the slide rail (11) is welded to the inner wall of the top of the top cover (2), both sides of the laser marking machine (10) are mounted with sliders (12) through bolts, the sliders (12) are stuck on the inner side of the slide rail (11), one side of the laser marking machine (10) is connected to the inner wall of one side of the slide rail (11) through spring 2 (18), and a sleeve (14) is welded to the inner wall of the top cover (2). ), a piston (15) is clamped on the inner side of the sleeve (14), the top end of the piston (15) is connected to the inner wall of the top of the sleeve (14) through a spring (16), the bottom of the piston (15) extends to the bottom of the sleeve (14), one end of the pressure roller (13) is mounted on the bottom of the piston (15) through a bearing, the pressure roller (13) is located on the top of the partition (6), the button (17) is mounted on the inner wall of the top of the sleeve (14) through bolts, the connecting sleeve (19) is welded to one side of the laser marking machine (10) through a support plate, the electromagnet (21) is clamped on the inner wall of the bottom of the connecting sleeve (19), the top end of the plug plate (20) is welded to the bottom of the electromagnet (21), and the plug plate (20) is welded to the bottom of the electromagnet (21). 0) passes through the bottom of the sleeve (19) and extends to the top of the belt (5); the bottom of the plug plate (20) is clamped on one side of the partition (6); the button 2 (23) is mounted on the inner wall of the top of the top cover (2) by bolts; the button 2 (23) is located on one side of the sleeve (19); the top of the electromagnet (21) is connected to the inner wall of the top of the sleeve (19) by a spring 3 (22); a sleeve (24) is welded to the inner wall of the other side of the slide rail (11); a slide rod (25) is clamped on the inner side of the sleeve (24); one end of the slide rod (25) passes through the sleeve (24) and is welded to the other side of the laser marking machine (10); a Tesla valve (26) is provided on the other side of the slide rail (11);The outer side of the slide rail (11) is in one-way communication with the inner side of the slide sleeve (24) via a Tesla valve (26).

2. The automatic marking device for a wire seal according to claim 1, characterized in that: The roller (4) is mounted on the inner side of the bracket (1) via a bearing, the roller (4) is mounted on both ends of the bracket (1), the motor (3) is mounted on the outer side of the bracket (1) via bolts, one end of the roller (4) is keyed to the output shaft of the motor (3), the belt (5) is sleeved on the outer side of the roller (4), the partition (6) is integrally formed on the outer side of the belt (5), and the partition (6) is evenly distributed on the belt (5).

3. The automatic marking device for a wire seal according to claim 1, characterized in that: A switch group (27) is installed on the outer side of the top cover (2) by means of bolts. The switch group (27) is connected to the motor 1 (3), the motor 2 (9), the button 1 (17) and the button 2 (23) by means of wires. The button 1 (17) is connected to the laser marking machine (10) by means of wires. The button 2 (23) is connected to the electromagnet (21) by means of wires.

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