Marking device with precise positioning function

Abstract

The utility model relates to the field of marking devices, and particularly discloses a precise positioning marking device which comprises a frame body, a conveying belt used for conveying workpieces, a marking machine used for marking, a laser detector used for detecting the workpieces and a shielding assembly used for shielding the laser detector. The shielding assembly shields the probe of the laser detector, and misjudgment of the laser detector caused by light reflection of the workpiece is avoided. The method has the advantages of accurate identification and accurate marking.

Description

Technical Field

[0001] The present application relates to the field of marking devices, and in particular to a precisely positioned marking device. Background Art

[0002] Laser marking is a marking method that uses high-energy-density lasers to locally irradiate a workpiece, causing the surface material to vaporize or undergo a chemical reaction that causes a color change, thereby leaving a permanent mark. The surfaces of many product shells require brand names, trademarks, and other product information to be marked with lasers.

[0003] Currently commonly used laser marking devices usually use a laser detection instrument to identify the workpiece on the assembly line. When the laser detection instrument identifies the workpiece, the laser marking machine uses laser to mark the preset pattern or text at the preset position on the workpiece.

[0004] However, in actual use, some workpieces have reflective surfaces or their shells are made of transparent materials. This causes the laser detection instrument to often misjudge the workpiece due to light reflection or refraction, resulting in misplaced marking or multiple markings on the same workpiece. Utility Model Content

[0005] In order to solve the problem of incorrect marking caused by reflection of the workpiece, the present application provides a precise positioning marking device, which has the advantages of precise identification and accurate marking.

[0006] The present application provides a precise positioning marking device using the following technical solutions:

[0007] A precisely positioned marking device comprises a frame, a shielding assembly, a conveyor belt rotatably mounted on the frame and used to convey workpieces, and a laser detector and a marking machine sequentially mounted on the frame along the conveying direction of the conveyor belt, wherein the probe of the laser detector and the marking head of the marking machine both point to the top of the conveyor belt, the shielding assembly comprises a mounting member and a shielding member, the mounting member is sleeved on the laser detector, the shielding member is hinged to the mounting member, and the shielding member rotates toward the detection portion of the laser detector after being pushed by the workpiece on the conveyor belt.

[0008] By adopting the above technical scheme, the shielding component can be used to shield the probe of the laser detector when the workpiece is not in the marking position, thereby preventing the laser detector from misjudging the position of the workpiece due to reflection on the workpiece surface or refraction of transparent materials, thereby improving the recognition accuracy of the laser detector, ensuring that misplaced marking and multiple marking will not occur, and improving the marking accuracy; when the workpiece moves on the conveyor belt, it will push the shielding component to rotate, thereby shielding the probe of the laser detector, avoiding the reflection on the workpiece surface and the like from affecting the detection result of the laser detector, thereby ensuring the detection accuracy of the laser detector, and the above structure is simple and easy to implement.

[0009] Optionally, the mounting member includes a first clamp block and a second clamp block, a corner of the first clamp block is hinged to a corner of the second clamp block, the second clamp block is hinged to the shielding member on a side away from the first clamp block, the first clamp block and the second clamp block are both provided with openings on sides close to each other, the two openings form a mounting hole, the first clamp block and the second clamp block clamp the laser detector in the mounting hole, and a clamping structure is provided between the first clamp block and the second clamp block.

[0010] By adopting the above technical solution, the mounting member and the shielding member can be installed on the laser detector by clamping the first clamp block and the second clamp block on the side wall of the laser detector. The installation is convenient and easy to disassemble, and it is convenient to replace the mounting members and shielding members of different sizes according to the needs of actual working conditions.

[0011] Optionally, anti-slip pads are provided on inner sides of the openings of the first clamping block and the second clamping block.

[0012] By adopting the above technical solution, the anti-slip pad is set to prevent the surface of the laser detector from being worn when the first clamp and the second clamp clamp the laser detector. At the same time, the elastic anti-slip pad can improve the clamping effect of the first clamp and the second clamp on the laser detector, so that the mounting part can be more stably installed on the side wall of the laser detector.

[0013] Optionally, the anti-slip pad is a sponge pad.

[0014] By adopting the above technical solution, the sponge material is widely used, its cost is relatively low, and the sponge is soft, which can provide good protection for the laser detector.

[0015] Optionally, it also includes an adjustment component, which includes a connecting member and two supporting members, one end of the two supporting members is installed on the top of the frame and located on the same side of the conveyor belt, both ends of the connecting member are installed on the top of the two supporting members, the connecting member is provided with a sliding groove along the moving direction of the conveyor belt, a first sliding block and a second sliding block are slidably arranged in the sliding groove, and the end of the first sliding block away from the sliding groove is connected to the first mounting block, and the end of the second sliding block away from the sliding groove is connected to the second mounting block, the marking machine is installed on the first mounting block, and the laser detector is installed on the second mounting block.

[0016] By adopting the above technical solution, the first sliding block and the second sliding block are slid in the sliding groove, which can drive the first mounting block and the second mounting block to slide along the moving direction of the conveyor belt, and then drive the marking machine and the laser detector to move, so as to adjust the relative position of the two and the workpiece and the distance between the two, and ensure that when the shielding member is detached from the top of the workpiece, the marking machine is just above the preset marking position of the workpiece, thereby achieving precise marking, so that the marking machine and the laser detector can meet the requirements of marking workpieces of different sizes and specific positions of the workpiece.

[0017] Optionally, adjusting screws are provided at both ends of the connecting member, and the two adjusting screws are respectively inserted from one end of the connecting member and extend into the sliding groove. The two adjusting screws are threadedly matched with the end of the connecting member, and the ends of the two adjusting screws away from the screw heads are respectively rotatably installed on the first sliding block and the second sliding block.

[0018] By adopting the above technical solution, the first sliding block and the second sliding block can be driven to slide in the sliding groove by rotating the adjusting screw, thereby adjusting the position of the marking machine and the laser detector. The adjusting screw can be used to achieve more precise linear adjustment, further improving the matching accuracy between the marking machine and the laser detector, and achieving precise marking.

[0019] Optionally, a first adjusting rod is vertically passed through the first mounting block and fixed by bolts, and the marking machine is mounted on the bottom end of the first adjusting rod.

[0020] By adopting the above technical solution, the first adjusting rod can be moved in the vertical direction after loosening the fixing bolt, thereby driving the marking machine to move towards or away from the workpiece, and then adjusting the position of the marking machine according to the size of different workpieces and marking needs, thereby improving the marking accuracy and quality.

[0021] Optionally, a second adjusting rod is vertically passed through the second mounting block and fixed by bolts, and the laser detector is mounted on the bottom end of the second adjusting rod.

[0022] By adopting the above technical solution, the second adjusting rod can be moved in the vertical direction after loosening the fixing bolt, thereby driving the laser detector to move towards or away from the workpiece, ensuring that the laser detector can be applied to workpieces of different sizes.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Use the shielding component to shield the laser detector probe when the workpiece is not in the marking position, so as to avoid the laser detector misjudging the position of the workpiece due to the reflection of the workpiece surface or the refraction of the transparent material, thereby improving the recognition accuracy of the laser detector, thereby ensuring that there will be no misplaced marking or multiple marking, and improving the marking accuracy;

[0025] 2. The mounting member and the shielding member are mounted on the laser detector by means of the clamping effect of the first clamp block and the second clamp block, which is convenient to install and easy to disassemble; the anti-skid pad can prevent the surface of the laser detector from being worn when the first clamp block and the second clamp block clamp the laser detector, and the elastic anti-skid pad can improve the clamping effect of the first clamp block and the second clamp block on the laser detector;

[0026] 3. The relative positions of the marking machine and the laser detector and the workpiece are adjusted by using the sliding cooperation of the two sliding blocks and the sliding grooves. The distance between the marking machine and the laser detector can also be adjusted to ensure that when the shielding member is detached from the top of the workpiece, the marking machine is just above the preset marking position of the workpiece, thereby achieving precise marking, so that the marking machine and the laser detector can meet the requirements of marking workpieces of different sizes and specific positions of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the laser detector of the embodiment of the present application without being blocked;

[0028] Figure 2 is a schematic diagram of the overall structure when the laser detector of the embodiment of the present application is blocked;

[0029] Figure 3 yes Figure 1 Enlarged view at A in the middle;

[0030] Figure 4 yes Figure 2 Enlarged view at B in the middle;

[0031] Figure 5 It is a schematic diagram of an embodiment of the present application for displaying an adjustment component.

[0032] Figure numerals: 1. frame; 2. conveyor belt; 3. marking machine; 4. laser detector; 5. adjustment assembly; 51. support member; 52. connecting member; 521. sliding groove; 53. adjusting screw; 54. first sliding block; 55. second sliding block; 56. first mounting block; 57. second mounting block; 58. first adjusting rod; 59. second adjusting rod; 6. shielding assembly; 61. mounting member; 611. first clamping block; 612. second clamping block; 62. shielding member; 63. clamping structure; 64. anti-slip pad. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a precise positioning marking device, referring to Figure 1, including a frame 1 and a conveyor belt 2 installed on the frame 1 for conveying workpieces, a marking machine 3 for marking and a laser detector 4 for detecting workpieces. The marking machine 3 and the laser detector 4 both point to the upper surface of the conveyor belt 2. After the laser detector 4 detects that the workpiece has arrived at a specific position, the marking machine 3 marks the workpiece and marks a preset pattern or information onto the surface of the workpiece.

[0035] Specifically, refer to Figure 1 and Figure 2 , the frame 1 is equipped with an adjustment component 5, the marking machine 3 and the laser detector 4 are both installed on the adjustment component 5, and the marking machine 3 and the laser detector 4 are located directly above the conveyor belt 2. As the conveyor belt 2 rotates on the frame 1, the workpieces on the conveyor belt 2 pass under the laser detector 4 and the marking machine 3 in turn, and then the marking is completed in turn. For the convenience of expression, the direction of the workpiece that has not been marked is set as the incoming direction, and the direction of the workpiece that has been marked is set as the outgoing direction.

[0036] Further, refer to Figure 3 and Figure 4 A shielding component 6 is installed on the laser detector 4, and the shielding component 6 includes a mounting member 61 and a shielding member 62. Both the mounting member 61 and the shielding member 62 are rectangular plate structures. One end of the mounting member 61 is hinged to one end of the shielding member 62. The mounting member 61 is horizontally sleeved on the outer wall of the probe of the laser detector 4. The shielding member 62 naturally hangs downward on the side of the laser detector 4 close to the incoming direction, and extends to the height of the workpiece above the conveyor belt 2. At this time, the angle between the mounting member 61 and the shielding member 62 is a right angle.

[0037] When the conveyor belt 2 rotates and drives the workpiece to move from the incoming direction to the outgoing direction, the workpiece gradually approaches and contacts the side wall of the shielding member 62. As the workpiece continues to move, the shielding member 62 rotates in the outgoing direction with its hinge structure as the center until the end of the shielding member 62 away from the hinge structure is located at the top of the workpiece. At this time, the angle between the shielding member 62 and the mounting member 61 is an acute angle, and the shielding member 62 covers the probe of the laser detector 4, and the detection signal of the laser detector 4 changes; then the workpiece continues to move until the shielding member 62 is separated from the top of the workpiece and returns to a natural hanging state. At this time, the angle between the shielding member 62 and the mounting member 61 returns to a right angle, the shielding member 62 no longer blocks the laser detector 4, and the detection signal of the laser detector 4 returns to the initial detection state. At this point, a detection cycle of the laser detector 4 is completed, and the marking machine 3 determines whether to mark according to the change of the detection signal of the laser detector 4. When a detection cycle of the laser detector 4 is completed, the marking machine 3 marks the detected workpiece, and then continues to cycle the above process with the movement of the next workpiece.

[0038] Using the shielding member 62 to shield the laser detector 4 can prevent the laser detector 4 from misjudging due to reflection or transparent refraction on the workpiece surface, thereby avoiding misplaced marking or repeated marking caused by misjudgment of the laser detector 4, thereby improving the quality and accuracy of marking.

[0039] Furthermore, the mounting member 61 includes a first clamp block 611 and a second clamp block 612, one side of the first clamp block 611 is attached to one side of the second clamp block 612 and combined into a plate-like structure, one end of the second clamp block 612 is hinged to the shielding member 62, and at the same time, the first clamp block 611 and the second clamp block 612 are hinged at a side angle close to each other, and rotating the first clamp block 611 and the second clamp block 612 can change the angle between the sides of the two clamp blocks close to each other.

[0040] In addition, a semicircular opening is provided on one side where the first clamp block 611 and the second clamp block 612 are close to each other. When the first clamp block 611 and the second clamp block 612 are fitted together, the above-mentioned openings of the two clamp blocks are combined into a circular mounting hole, and the probe of the laser detector 4 is clamped in the mounting hole by the first clamp block 611 and the second clamp block 612. At the same time, a clamping structure 63 is also provided on the side where the first clamp block 611 and the second clamp block 612 are fitted together. The clamping structure 63 is located at one end of the side away from the hinge structure. By fitting the two clamp blocks together and buckling the clamping structure 63, the mounting member 61 can be fixed to the side wall of the laser detector 4.

[0041] Furthermore, anti-skid pads 64 are provided on the semicircular opening sides of the first clamp block 611 and the second clamp block 612. In this embodiment, the anti-skid pads 64 are made of sponge pads. The anti-skid pads 64 can prevent the surface of the laser detector 4 from being worn when the first clamp block 611 and the second clamp block 612 clamp the laser detector 4. At the same time, the elastic anti-skid pads 64 can improve the clamping effect of the first clamp block 611 and the second clamp block 612 on the laser detector 4, so that the mounting member 61 can be more stably installed on the side wall of the laser detector 4.

[0042] Further, refer to Figure 1 and Figure 5 The adjustment component 5 includes a supporting member 51 and a connecting member 52, both of which are in the shape of a rectangular parallelepiped. There are two supporting members 51 and they are vertically arranged on the top of the frame 1, and the two supporting members 51 are located on the same side of the conveyor belt 2. The connecting member 52 is horizontally installed on the top of the two supporting members 51. At the same time, the connecting member 52 is provided with a sliding groove 521 in the horizontal direction, and a first sliding block 54 and a second sliding block 55 are slidingly arranged in the sliding groove 521. The side wall of the first sliding block 54 is connected to the first mounting block 56, and the side wall of the second sliding block 55 is connected to the second mounting block 57. The marking machine 3 is connected to the first mounting block 56, and the laser detector 4 is connected to the second mounting block 57.

[0043] During specific use, by sliding the first sliding block 54 and the second sliding block 55 in the sliding groove 521, the first mounting block 56 and the second mounting block 57 can be driven to move, thereby adjusting the distance between the marking machine 3 and the laser detector 4 to ensure that when the shielding member 62 is detached from the top of the workpiece, the marking machine 3 is just above the preset marking position of the workpiece, thereby achieving precise marking, so that the marking machine 3 and the laser detector 4 can meet the requirements of marking workpieces of different sizes and specific positions of the workpiece.

[0044] Furthermore, a first adjusting rod 58 is vertically passed through the first mounting block 56 and fixed by bolts, a second adjusting rod 59 is vertically passed through the second mounting block 57 and fixed by bolts, the marking machine 3 is mounted at the bottom end of the first adjusting rod 58, and the laser detector 4 is mounted at the bottom end of the second adjusting rod 59. By loosening the fixing bolts of the two adjusting rods, the two adjusting rods can be slid vertically in the two mounting blocks respectively, thereby adjusting the vertical distance between the marking machine 3 and the laser detector 4 and the workpiece on the conveyor belt 2 to meet the marking needs of workpieces of different sizes.

[0045] In addition, both ends of the connecting member 52 along the length direction are penetrated with adjusting screws 53, and the two adjusting screws 53 are respectively penetrated from the ends of the connecting member 52 and extend into the sliding groove 521. At the same time, the two adjusting screws 53 are threadedly matched with the ends of the connecting member 52, and the ends of the two adjusting screws 53 away from the screw heads are respectively rotatably mounted on the first sliding block 54 and the second sliding block 55. By rotating the adjusting screws 53, the sliding blocks can be driven to move in the sliding groove 521, thereby driving the marking machine 3 and the laser detector 4 to move in the horizontal direction.

[0046] The implementation principle of a precise positioning marking device disclosed in an embodiment of the present application is as follows: according to the size of the workpiece and the marking position, the marking machine 3 and the laser detector 4 are adjusted to a suitable height using two adjustment rods, and then the adjustment screw 53 is rotated to adjust the distance between the marking machine 3 and the laser detector 4. After the adjustment is completed, the conveyor belt 2 is driven to drive the workpieces to pass under the marking machine 3 in sequence and mark them one by one.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A precise positioning marking device, comprising a frame (1), a conveyor belt (2) rotatably mounted on the frame (1) and used to convey workpieces, and a laser detector (4) and a marking machine (3) sequentially mounted on the frame (1) along the conveying direction of the conveyor belt (2); The probe of the laser detector (4) and the marking head of the marking machine (3) are both pointed above the conveyor belt (2); Features: It also comprises a shielding component (6), the shielding component (6) comprising a mounting member (61) and a shielding member (62), the mounting member (61) being sleeved on the laser detector (4), the shielding member (62) being hinged to the mounting member (61), and the shielding member (62) being rotated toward the detection position of the laser detector (4) after being pushed by a workpiece on the conveyor belt (2).

2. The precise positioning marking device according to claim 1, characterized in that: The mounting member (61) comprises a first clamping block (611) and a second clamping block (612); one side corner of the first clamping block (611) is hinged to the other side corner of the second clamping block (612); a side of the second clamping block (612) away from the first clamping block (611) is hinged to the shielding member (62); the first clamping block (611) and the second clamping block (612) are both provided with openings on their sides close to each other; the two openings form a mounting hole; the first clamping block (611) and the second clamping block (612) clamp the laser detector (4) in the mounting hole; and a clamping structure (63) is provided between the first clamping block (611) and the second clamping block (612).

3. The precise positioning marking device according to claim 2, characterized in that: Anti-slip pads (64) are provided inside the openings of the first clamping block (611) and the second clamping block (612).

4. The precise positioning marking device according to claim 3, characterized in that: The anti-slip pad (64) is a sponge pad.

5. The precise positioning marking device according to claim 1, characterized in that: The utility model also comprises an adjusting component (5), wherein the adjusting component (5) comprises a connecting member (52) and two supporting members (51), one end of the two supporting members (51) is mounted on the top of the frame (1) and is located on the same side of the conveyor belt (2), the two ends of the connecting member (52) are mounted on the top of the two supporting members (51), the connecting member (52) is provided with a sliding groove (521) along the moving direction of the conveyor belt (2), a first sliding block (54) and a second sliding block (55) are slidably arranged in the sliding groove (521), and the end of the first sliding block (54) away from the sliding groove (521) is connected to the first mounting block (56), and the end of the second sliding block (55) away from the sliding groove (521) is connected to the second mounting block (57), the marking machine (3) is mounted on the first mounting block (56), and the laser detector (4) is mounted on the second mounting block (57).

6. The precise positioning marking device according to claim 5, characterized in that: Adjustment screws (53) are provided at both ends of the connecting member (52). The two adjustment screws (53) are respectively inserted from one end of the connecting member (52) and extend into the sliding groove (521). The two adjustment screws (53) are threadedly matched with the end of the connecting member (52), and the ends of the two adjustment screws (53) away from the screw heads are rotatably mounted on the first sliding block (54) and the second sliding block (55).

7. The precise positioning marking device according to claim 5, characterized in that: The first mounting block (56) is vertically penetrated by a first adjusting rod (58) and fixed by bolts, and the marking machine (3) is mounted on the bottom end of the first adjusting rod (58).

8. The precise positioning marking device according to claim 5, characterized in that: The second mounting block (57) is vertically penetrated by a second adjusting rod (59) and fixed by bolts, and the laser detector (4) is mounted on the bottom end of the second adjusting rod (59).

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