Portable laser engraving machine

Abstract

The utility model relates to the technical field of laser processing equipment, in particular to a portable laser engraving machine which comprises a protective shell, a control mechanism and a laser engraving machine body, a containing cavity is formed in the protective shell, and the containing cavity is used for containing the engraving machine body; the protective shell comprises a main protective shell and a movable door, a first communicating hole is formed in the main protective shell, the movable door is hinged to the main protective shell, and the main protective shell is used for covering the first communicating hole; the control mechanism is connected with the background controller and comprises a transmitting part and a receiving part, the transmitting part is fixedly arranged on the movable door, the receiving part is fixedly arranged on the main protective shell, and the background controller controls the laser engraving machine body to operate. According to the laser engraving machine, the protective shell is arranged on the periphery of the laser engraving machine body, so that a worker is separated from the operating laser engraving machine; therefore, the risk that a worker mistakenly touches the laser generated by the laser engraving machine is reduced, and the safety protection performance of equipment operation is improved.

Description

Technical Field

[0001] This application relates to the field of laser processing equipment technology, and in particular to a portable laser engraving machine. Background Technology

[0002] In the existing technology, laser engraving machines are divided into fixed laser engraving machines and portable laser engraving machines.

[0003] Fixed laser engraving machines are installed in a workshop and achieve precise engraving through a complex mechanical structure and control system. Fixed laser engraving machines are mostly used in industrial production environments and are not suitable for mobile operations.

[0004] In existing technologies, portable laser engraving machines improve portability by reducing the size of fixed laser engraving machines and simplifying mechanical mechanisms; however, existing portable laser engraving machines are not safe enough and lack effective protective mechanisms, which makes it dangerous for workers to accidentally touch the laser, thus posing a safety hazard. Utility Model Content

[0005] To improve the safety performance of portable laser engraving machines, this application provides a portable laser engraving machine.

[0006] This application provides a portable laser engraving machine, which adopts the following technical solution:

[0007] A portable laser engraving machine includes a protective housing, a control mechanism, and a laser engraving machine body. The protective housing has an internal accommodating chamber for accommodating the engraving machine body, and the engraving machine is detachably connected to the protective housing. The protective housing includes a main protective housing and a movable door. The main protective housing has a first connecting hole, and the movable door is hinged to the main protective housing, which covers the first connecting hole. The control mechanism is connected to a backend controller and includes a transmitter and a receiver. The transmitter is fixed to the movable door, and the receiver is fixed to the main protective housing. When the movable door covers the first connecting hole, the distance between the receiver and the transmitter is less than the signal transmission distance, and the receiver receives the signal emitted by the transmitter. The backend controller controls the laser engraving machine body to operate normally. When the movable door is separated from the first connecting hole, the distance between the receiver and the transmitter is greater than the signal transmission distance, and the backend controller controls the laser engraving machine body to stop operating.

[0008] By adopting the above technical solution, a protective shell is set around the laser engraving machine, thus separating the staff from the operating laser engraving machine; thereby reducing the risk of staff accidentally touching the laser emitted by the laser engraving machine and improving the safety protection performance of the equipment operation.

[0009] When the worker places the item to be engraved in the receiving chamber and closes the movable door, the laser engraving machine emits a laser to engrave the item. If the worker opens the movable door midway during the engraving process, the receiver and transmitter will separate, and the receiver will fail to receive the signal emitted by the transmitter. The back-end controller will then stop the laser engraving machine to reduce the risk of the worker accidentally touching the laser emitted by the laser engraving machine.

[0010] Optionally, the laser engraving machine body includes a laser engraving host and a mounting frame; the mounting frame is disposed in the receiving chamber, and the mounting frame includes a base plate and an electric lifting bracket. The base plate is fixed to the main protective housing, and the electric lifting bracket is fixed to the base plate. The driving end of the electric lifting bracket is close to or away from the base plate; the laser engraving host is fixed to the driving end of the electric lifting bracket, and the emitting end of the laser engraving host is disposed opposite to the base plate.

[0011] By adopting the above technical solution, the electric lifting bracket drives the laser engraving host to move vertically, so as to adjust the distance between the laser engraving host and the object to be engraved, so as to facilitate the operation of the laser engraving host.

[0012] Optionally, the main protective housing is further provided with a second connecting hole and a third connecting hole. The second connecting hole is disposed opposite to the base plate, and the third connecting hole is disposed opposite to the first connecting hole. The second connecting hole and the third connecting hole are connected in communication. Under normal conditions, the laser engraving host covers the second connecting hole and the third connecting hole.

[0013] By adopting the above technical solution, and by setting a second and a third connecting hole on the protective housing, the laser engraving host can be connected to the outside world, so that the staff can connect the wires and signal lines to the laser engraving host.

[0014] Optionally, the laser engraving machine body also includes a handle, which is fixed to the side of the laser engraving host away from the protective housing.

[0015] By adopting the above technical solution, a handle is set on the laser engraving host for workers to grip, so as to facilitate workers to move the portable laser engraving machine.

[0016] Optionally, it also includes an exhaust mechanism, which includes an exhaust fan and an exhaust pipe. The main protective housing has several fourth connecting holes. The exhaust fan is fixed on the outer periphery of the main protective housing and covers the fourth connecting holes. The exhaust pipe is connected to the exhaust fan. The exhaust mechanism is used to extract waste gas from the receiving chamber.

[0017] By adopting the above technical solution, when the laser engraving host engraves items made of materials such as leather and plastic, the items to be engraved will produce small molecular substances under the high temperature of laser engraving. Some of these substances have an irritating odor. The irritating gas in the containment chamber is extracted by a gas extraction mechanism to reduce the impact of the irritating gas on the workers.

[0018] Optionally, it also includes an elastic sealing plate, one side of which is fixed to the laser engraving host, and the other side of which is fixed to the inner wall of the main protective housing. The elastic sealing plate is used to cover the third connecting hole.

[0019] By adopting the above technical solution and setting an elastic sealing plate, the sealing performance of the protective shell is improved, the efficiency of the air extraction mechanism in extracting gas from the containment chamber is increased, and the leakage of irritating gas from the containment chamber is reduced, thereby improving the safety protection performance of the portable laser engraving machine.

[0020] Optionally, the control mechanism is an electromagnetic induction mechanism, in which the transmitting element generates an alternating magnetic field, the coil in the receiving element senses the change in the magnetic field and generates an electrical signal, and the background controller controls the operation of the laser engraving machine body according to the electrical signal of the receiving element.

[0021] By adopting the above technical solution, the control mechanism uses the principle of electromagnetic induction to control the operation of the laser engraving machine body, thereby achieving the safety protection effect of the portable laser engraving machine.

[0022] Optionally, the control mechanism is an infrared mechanism, the transmitter is an infrared transmitter, and the receiver is an infrared receiver. The receiver is used to receive the infrared rays emitted by the transmitter and generate an electrical signal. The background controller controls the operation of the laser engraving machine body according to the electrical signal of the receiver.

[0023] By adopting the above technical solution, the control mechanism uses the infrared principle to control the operation of the laser engraving machine body, thereby achieving the safety protection effect of the portable laser engraving machine.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By installing a protective shell around the laser engraving machine, workers are separated from the operating laser engraving machine; this reduces the risk of workers accidentally touching the laser emitted by the laser engraving machine and improves the safety performance of the equipment.

[0026] 2. When the laser engraving machine is engraving items made of materials such as leather and plastic, the items being engraved will produce small molecules under the high temperature of the laser engraving process. Some of these substances have an irritating odor. An extraction mechanism is used to remove these irritating gases from the engraving chamber to reduce their impact on workers.

[0027] 3. By setting up an elastic sealing plate, the sealing performance of the protective shell is improved, thereby increasing the efficiency of the air extraction mechanism in extracting gas from the containment chamber and reducing the leakage of irritating gases from the containment chamber, thus improving the safety protection performance of the portable laser engraving machine. Attached Figure Description

[0028] Figure 1 This is an isometric view of the first state of the portable laser engraving machine in Example 1.

[0029] Figure 2 This is a schematic diagram illustrating the internal structure of the portable laser engraving machine in Embodiment 1.

[0030] Figure 3 This is an isometric view of the second state of the portable laser engraving machine in Example 1.

[0031] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0032] Figure 5 This is a schematic diagram illustrating the structure of the laser engraving machine body in Example 1.

[0033] Figure 6 This is an isometric view of the portable laser engraving machine in Example 1.

[0034] Explanation of reference numerals in the attached drawings: 1. Protective housing; 11. Main protective housing; 12. Movable door; 13. Receiving chamber; 14. First connecting hole; 15. Second connecting hole; 16. Third connecting hole; 17. Fourth connecting hole; 2. Control mechanism; 21. Transmitter; 22. Receiver; 3. Laser engraving machine body; 31. Laser engraving host; 32. Mounting bracket; 321. Base plate; 322. Electric lifting bracket; 33. Lifting knob; 4. Air extraction mechanism; 41. Exhaust fan; 42. Exhaust pipe; 5. Handle; 6. Elastic sealing plate. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1 -6 provides further detailed information about this application.

[0036] This application discloses a portable laser engraving machine. (Refer to...) Figure 1 and Figure 2 The portable laser engraving machine includes a protective housing 1, a control mechanism 2, a laser engraving machine body 3, and an air extraction mechanism 4.

[0037] Reference Figure 1 and Figure 2 The protective housing 1 has an internal receiving chamber 13 for accommodating the engraving machine body. The engraving machine is detachably connected to the protective housing 1. An extraction mechanism 4 is fixed to the outer periphery of the protective housing 1 and is used to extract gas from the receiving chamber 13. The protective housing 1 can be a plastic housing, an aluminum alloy plate housing, etc.; in this embodiment, the protective housing 1 is a transparent plastic housing to facilitate observation of the laser engraving machine body 3's operation by the operator.

[0038] Reference Figure 1 and Figure 2 The protective housing 1 includes a main protective housing 11 and a movable door 12. The main protective housing 11 has a first connecting hole 14. The movable door 12 is hinged to the main protective housing 11. The main protective housing 11 is used to cover the first connecting hole 14.

[0039] Reference Figure 3 and Figure 4 The control mechanism 2 is connected to the back-end controller. The control mechanism 2 includes a transmitter 21 and a receiver 22. The transmitter 21 is fixed on the movable door 12, and the receiver 22 is fixed on the main protective housing 11. When the movable door 12 covers the first connecting hole 14, the distance between the receiver 22 and the transmitter 21 is less than the signal transmission distance. The receiver 22 receives the signal emitted by the transmitter 21, and the back-end controller controls the laser engraving machine body 3 to operate normally. When the movable door 12 is separated from the first connecting hole 14, the distance between the receiver 22 and the transmitter 21 is greater than the signal transmission distance, and the back-end controller controls the laser engraving machine body 3 to stop operating.

[0040] In this embodiment, the control mechanism 2 is an infrared mechanism, the transmitter 21 is an infrared transmitter, and the receiver 22 is an infrared receiver. The receiver 22 receives the infrared rays emitted by the transmitter 21 and generates an electrical signal. The background controller controls the operation of the laser engraving machine body 3 based on the electrical signal from the receiver 22. In this embodiment, the control mechanism 2 uses the infrared principle to control the operation of the laser engraving machine body 3, thereby achieving the safety protection effect of the portable laser engraving machine. In other embodiments, the control mechanism 2 can also use the electromagnetic induction principle to control the operation of the laser engraving machine body 3.

[0041] Reference Figure 1 and Figure 3When the staff places the item to be engraved in the receiving chamber 13 and closes the movable door 12, the laser engraving machine body 3 emits a laser to engrave the item. During the process of the laser engraving machine body 3 engraving the item, if the staff opens the movable door 12 midway, the receiver 22 and the transmitter 21 will separate. The receiver 22 will fail to receive the signal emitted by the transmitter 21, and the background controller will control the laser engraving machine body 3 to stop running, so as to reduce the risk of the staff accidentally touching the laser emitted by the laser engraving machine.

[0042] Reference Figure 5 and Figure 6 The laser engraving machine body 3 includes a laser engraving main unit 31 and a mounting frame 32. The mounting frame 32 is disposed in the receiving chamber 13 and includes a base plate 321 and an electric lifting bracket 322. The base plate 321 is fixed to the main protective housing 11, and the object to be engraved is placed on the base plate 321. The electric lifting bracket 322 is fixed to the base plate 321, with its drive end approaching or moving away from the base plate 321. The laser engraving main unit 31 is fixed to the drive end of the electric lifting bracket 322, and its emitting end is positioned opposite to the base plate 321. The electric lifting bracket 322 drives the laser engraving main unit 31 to move vertically, facilitating the adjustment of the distance between the laser engraving main unit 31 and the object to be engraved, thus facilitating the operation of the laser engraving main unit 31.

[0043] Reference Figure 6 The electric lifting support 322 is also equipped with a lifting knob 33, and the main protective housing 11 has a mounting hole for installing the lifting knob 33. The lifting knob 33 is used to control the upward or downward movement of the drive end of the electric lifting support 322.

[0044] Reference Figure 5 and Figure 6 In this embodiment, the main protective housing 11 also has a second connecting hole 15 and a third connecting hole 16. The second connecting hole 15 is opposite to the base plate 321, and the third connecting hole 16 is opposite to the first connecting hole 14, and the second connecting hole 15 and the third connecting hole 16 are connected. Under normal conditions, the laser engraving host 31 covers the second connecting hole 15 and the third connecting hole 16. That is, by providing the second connecting hole 15 and the third connecting hole 16 on the protective housing 1, the laser engraving host 31 is able to communicate with the outside world, so that workers can connect wires and signal lines to the laser engraving host 31.

[0045] Reference Figure 5 and Figure 6 Meanwhile, the laser engraving machine body 3 also includes a handle 5, which is fixed to the side of the laser engraving host 31 away from the protective housing 1. The handle 5 is used for the operator to grip, so as to facilitate the operator to move the portable laser engraving machine.

[0046] When the laser engraving host 31 engraves items made of materials such as leather and plastic, the items to be engraved will produce small molecular substances under the high temperature of laser engraving. Some of these substances have an irritating odor.

[0047] Reference Figure 5 and Figure 6 The extraction mechanism 4 includes an extraction fan 41 and an extraction pipe 42. The main protective housing 11 has several fourth connecting holes 17. The extraction fan 41 is fixed to the outer periphery of the main protective housing 11 and covers the fourth connecting holes 17. The extraction pipe 42 is connected to the extraction fan 41. The extraction mechanism 4 is used to extract waste gas from the containing chamber 13. Specifically, it extracts irritating gases from the containing chamber 13 to reduce the impact of these irritating gases on workers.

[0048] Reference Figure 5 and Figure 6 In addition, the portable laser engraving machine also includes an elastic sealing plate 6. One side of the elastic sealing plate 6 is fixed to the laser engraving host 31, and the other side is fixed to the inner wall of the main protective housing 11. The elastic sealing plate 6 is used to cover the third connecting hole 16. By setting the elastic sealing plate 6, the sealing performance of the protective housing 1 is improved, thereby increasing the efficiency of the air extraction mechanism 4 in extracting gas from the containing chamber 13 and reducing the leakage of irritating gases from the containing chamber 13, thus improving the safety protection performance of the portable laser engraving machine.

[0049] The implementation principle of a portable laser engraving machine according to an embodiment of this application is as follows:

[0050] By setting a protective shell 1 around the outer periphery of the laser engraving machine body 3, the operator is separated from the operating laser engraving machine; thereby reducing the risk of the operator accidentally touching the laser emitted by the laser engraving machine and improving the safety protection performance of the equipment operation.

[0051] Example 2

[0052] The difference between this embodiment 2 and embodiment 1 is that the control method of the control mechanism 2 is different.

[0053] In this embodiment, the control mechanism 2 is an electromagnetic induction mechanism. The transmitter 21 generates an alternating magnetic field, and the coil in the receiver 22 senses the change in the magnetic field and generates an electrical signal. The background controller controls the operation of the laser engraving machine body 3 according to the electrical signal from the receiver 22. That is, the control mechanism 2 uses the principle of electromagnetic induction to control the operation of the laser engraving machine body 3, thereby achieving the safety protection effect of the portable laser engraving machine.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable laser engraving machine, characterized in that: The system includes a protective housing (1), a control mechanism (2), and a laser engraving machine body (3). The protective housing (1) has an internal accommodating chamber (13) for accommodating the engraving machine body. The engraving machine is detachably connected to the protective housing (1). The protective housing (1) includes a main protective housing (11) and a movable door (12). The main protective housing (11) has a first connecting hole (14). The movable door (12) is hinged to the main protective housing (11). The main protective housing (11) is used to cover the first connecting hole (14). The control mechanism (2) is connected to a back-end controller. The control mechanism (2) includes a transmitter (21) and a receiver. The transmitter (21) is fixed on the movable door (12), and the receiver (22) is fixed on the main protective housing (11). When the movable door (12) covers the first connecting hole (14), the distance between the receiver (22) and the transmitter (21) is less than the signal transmission distance. The receiver (22) receives the signal emitted by the transmitter (21), and the background controller controls the laser engraving machine body (3) to operate normally. When the movable door (12) is separated from the first connecting hole (14), the distance between the receiver (22) and the transmitter (21) is greater than the signal transmission distance, and the background controller controls the laser engraving machine body (3) to stop operating.

2. The portable laser engraving machine according to claim 1, characterized in that: The laser engraving machine body (3) includes a laser engraving host (31) and a mounting frame (32); the mounting frame (32) is disposed in the receiving chamber (13), the mounting frame (32) includes a base plate (321) and an electric lifting bracket (322), the base plate (321) is fixed on the main protective shell (11), the electric lifting bracket (322) is fixed on the base plate (321), and the driving end of the electric lifting bracket (322) is close to or far from the base plate (321); the laser engraving host (31) is fixed on the driving end of the electric lifting bracket (322), and the emitting end of the laser engraving host is disposed opposite to the base plate (321).

3. The portable laser engraving machine according to claim 2, characterized in that: The main protective housing (11) is also provided with a second connecting hole (15) and a third connecting hole (16). The second connecting hole (15) is disposed opposite to the base plate (321), and the third connecting hole (16) is disposed opposite to the first connecting hole (14). The second connecting hole (15) and the third connecting hole (16) are connected in communication. Under normal conditions, the laser engraving host (31) covers the second connecting hole (15) and the third connecting hole (16).

4. The portable laser engraving machine according to claim 3, characterized in that: The laser engraving machine body (3) also includes a handle (5), which is fixed on the side of the laser engraving host (31) away from the protective shell (1).

5. The portable laser engraving machine according to claim 3, characterized in that: It also includes an air extraction mechanism (4), which includes an air extraction fan (41) and an air extraction pipe (42). The main protective housing (11) has several fourth connecting holes (17). The air extraction fan (41) is fixed on the outer periphery of the main protective housing (11) and covers the fourth connecting holes (17). The air extraction pipe (42) is connected to the air extraction fan (41). The air extraction mechanism (4) is used to extract the waste gas in the receiving chamber (13).

6. The portable laser engraving machine according to claim 5, characterized in that: It also includes an elastic sealing plate (6), one side of which is fixed to the laser engraving host (31), and the other side of which is fixed to the inner wall of the main protective housing (11). The elastic sealing plate (6) is used to cover the third connecting hole (16).

7. The portable laser engraving machine according to claim 1, characterized in that: The control mechanism (2) is an electromagnetic induction mechanism. The transmitter (21) generates an alternating magnetic field. The coil in the receiver (22) senses the change in the magnetic field and generates an electrical signal. The background controller controls the operation of the laser engraving machine body (3) according to the electrical signal of the receiver (22).

8. The portable laser engraving machine according to claim 1, characterized in that: The control mechanism (2) is an infrared mechanism, the transmitter (21) is an infrared transmitter, and the receiver (22) is an infrared receiver. The receiver (22) is used to receive the infrared rays emitted by the transmitter (21) and generate an electrical signal. The background controller controls the operation of the laser engraving machine body (3) according to the electrical signal of the receiver (22).

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