Full-automatic laser ink-jet printer accurate in positioning

Abstract

The invention relates to the technical field of laser marking, and particularly discloses an accurate-positioning full-automatic laser ink-jet printer, which comprises a rack and a marking machine, and further comprises a conveying assembly which comprises a conveying belt which is used for conveying chips and is provided with a section of concave part; and the positioning mechanism comprises a trapezoidal frame which is fixedly mounted on the rack and covers an end opening of the concave part, the trapezoidal frame comprises a supporting surface higher than the conveying belt, and the trapezoidal frame is coaxial with the output end of the marking machine. Through the trapezoidal frame used for bearing the concave part, when the conveying belt conveys the chip, a supporting surface higher than the belt surface of the conveying belt is formed, so that a camera of the marking machine can identify the chip and distinguish the chip from other chips, the identification speed is increased, and when the chip is located on the supporting surface, the chip is limited by the limiting rod and stays, so that the chip identification efficiency is improved. And the other chip is static before being pushed, so that the marking time is reserved, and fonts or pictures on the chip are prevented from being compressed and blurred.

Description

TECHNICAL FIELD

[0001] The application relates to laser marking technology, and particularly relates to a full-automatic laser code spraying machine with accurate positioning. BACKGROUND

[0002] It is known that laser code spraying is a rapid laser marking technology applied to a continuous production line, permanent etching of a product moving rapidly is carried out through laser, and the laser code spraying belongs to laser marking.

[0003] For example, an application with the application publication number CN113210906B, the application publication date of April 5, 2022, and the name of a laser code spraying machine with a code spraying position convenient to adjust and a method thereof, comprises a support frame, a top plate and a bottom plate, the top plate is installed at the upper end of the support frame, the bottom plate is installed at the lower end of the support frame, and further comprises an object adjusting device and a supporting device, the object adjusting device is installed on the upper side of the bottom plate, and the supporting device is installed at the side end of the support frame; the object adjusting device comprises a fixed plate, the fixed plate is installed at the upper end of the bottom plate, a hydraulic rod four is installed at the upper end of the fixed plate, a connecting plate two is installed at the upper end of the hydraulic rod four, a supporting table is installed at the upper end of the connecting plate two, a speed reducer motor is installed at the upper end of the supporting table, a rotating shaft is installed at the output end of the speed reducer motor, and the left end of the rotating shaft is connected with a hydraulic rod two. The application has the beneficial effects that the object adjusting device is arranged on the laser code spraying machine, the code spraying on the object is facilitated, and the laser code spraying machine is suitable for fixed code spraying and code spraying on a conveying belt.

[0004] The existing technology has the following disadvantages. When the product is conveyed through the conveying belt, the marked product on the conveying belt is identified through the camera, and the product is marked after being identified to face the marking machine. The identification method is mainly gray scale identification. In production, the conveying belt is continuously moving to maintain production efficiency. The product to be marked is conveyed to the laser code spraying machine through the conveying belt for marking. However, when the target is a small-size object such as a chip, the chip is blocked by an external moving key, and the chip adjacent to the blocking object is marked. However, when the chip is blocked, the chip and the adjacent chip are tightly attached to each other due to the movement of the conveying belt, which affects the identification of the marking machine, and the pattern after marking is dislocated and blurred. SUMMARY

[0005] The application aims to provide a full-automatic laser code spraying machine with accurate positioning to solve the above-mentioned problems in the prior art.

[0006] In order to achieve the above-mentioned purpose, the application provides the following technical scheme: a full-automatic laser code spraying machine with accurate positioning, comprising a rack and a marking machine, and further comprising: A conveying assembly comprising a conveying belt for conveying chips and having a concave portion; A positioning mechanism comprises a ladder frame fixedly installed on the frame and covering the recessed portion, the ladder frame comprising a support surface higher than the conveying belt, the ladder frame being coaxial with the marking machine output end; A limiting rod movably arranged in the ladder frame, the chip being moved to the ladder frame by the conveying belt and being limited by the limiting rod.

[0007] As a further description of the above technical solution: the limiting rod is movably arranged on the side plates on both sides of the ladder frame, and the first end of the limiting rod is provided with a limiting plate extending out of the ladder frame to limit the chip.

[0008] As a further description of the above technical solution: the ladder frame is provided with a central notch at both ends, and the second end of the limiting rod extends out of the central notch, and the chip is moved to push against the second end of the limiting rod to make the limiting plate retract into the ladder frame.

[0009] As a further description of the above technical solution: the second end of the limiting rod is provided with a first friction wheel abutting against the chip, and the chip is moved to the ladder frame along the first friction wheel by pushing against another chip.

[0010] As a further description of the above technical solution: an elastic supporting piece is arranged between the second end of the limiting rod and the ladder frame, and the limiting rod is compressed after moving by hitting the chip to make the first friction wheel coupled with the conveying belt to rotate.

[0011] As a further description of the above technical solution: the frame is provided with a tensioning wheel pulling the conveying belt, the recessed portion is formed by being pulled by the tensioning wheel, and the recessed portion corresponds to the limiting rod.

[0012] As a further description of the above technical solution: the side plate is provided with an inclined channel, the first end of the limiting rod is provided with a connecting column slidingly connected in the inclined channel, and a reed is arranged between the inclined channel and the connecting column.

[0013] As a further description of the above technical solution: it further comprises a smoke extraction pipe connected in communication with the air extractor, a horizontally arranged horn cover is fixedly connected at the end of the smoke extraction pipe, and the horn cover faces the ladder frame.

[0014] As a further description of the above technical solution: limiting frames for limiting the chip are arranged on both sides of the conveying belt, and a bottom extraction groove is arranged on the limiting frame facing the horn cover.

[0015] As a further description of the above technical solution: a metal head is arranged on the limiting plate, and a pin is arranged on the bottom of the chip, and the metal head abuts against the bottom of the chip when the limiting plate retracts and resets.

[0016] In the above technical solution, the full-automatic laser marking machine with accurate positioning provided by the application forms a supporting surface higher than the surface of the conveying belt when the conveying belt is conveying the chips, so that the camera of the marking machine can identify the chips and distinguish them from the other chips, thereby accelerating the identification speed, and when the chip is located on the supporting surface, it will be stopped by the limiting rod before another chip pushes against it, thereby reserving the marking time and avoiding the compression and blurring of the font or picture on the chip. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 The overall schematic diagram provided by the embodiment of the present application is provided. Figure 2 The overall front view schematic diagram provided by the embodiment of the present application is provided. Figure 3 The marking machine and the blanking unit schematic diagram provided by the embodiment of the present application is provided. Figure 4 The structure explosion schematic diagram of the positioning mechanism provided by the embodiment of the present application is provided. Figure 5 The Figure 4 The enlarged schematic diagram in A of the above is provided. Figure 6 The Figure 5 The enlarged schematic diagram in B of the above is provided. Figure 7 The structure schematic diagram of the smoke extraction pipe and the conveying belt provided by the embodiment of the present application is provided. Figure 8 The Figure 7 The enlarged schematic diagram in C of the above is provided. Figure 9 The overall structure cross-sectional schematic diagram provided by the embodiment of the present application is provided. Figure 10 The Figure 9 The enlarged schematic diagram in D of the above is provided.

[0019] Explanation of reference signs: 1, rack; 11, profile box; 111, opening; 12, door plate; 2, conveying assembly; 21, limiting frame; 211, bottom slot; 22, conveying belt; 220, driving wheel; 221, recess; 222, tensioning wheel; 23, driving motor; 3, marking machine; 31, laser head; 32, adjustable base; 321, adjusting screw; 4, smoke pipe; 41, horn cover; 5, blanking unit; 51, blanking guide rail; 52, intercepting head; 6, positioning mechanism; 61, trapezoidal frame; 611, central notch; 612, side plate; 613, inclined way; 614, reed; 62, limiting rod; 621, limiting plate; 623, connecting column; 624, first friction wheel; 625, second friction wheel; 63, elastic supporting piece; 7, chip; 71, pin. DETAILED DESCRIPTION

[0020] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0021] Please refer to Figures 1-10 The present application provides a kind of technical solutions: a kind of positioning accurate full-automatic laser code printer, including rack 1 and marking machine 3 also includes: Conveying assembly 2, it includes for conveying chip 7, and with a recess 221 of conveying belt 22; Positioning mechanism 6, it includes fixedly installed on rack 1, and covers on the port of recess 221 trapezoidal frame 61, trapezoidal frame 61 includes a depending surface higher than conveying belt 22, trapezoidal frame 61 and marking machine 3 output end coaxial; Limiting rod 62 movably arranged in trapezoidal frame 61, chip 7 moves to trapezoidal frame 61 along with conveying belt 22, and is limited by limiting rod 62 and stays.

[0022] Specifically, the recess 221 of the conveying belt 22 is recessed into the rack 1 to form a vacancy segment in the belt surface conveying the chip 7, the trapezoidal frame 61 has inclined surfaces at both ends and a depending surface in the center, the depending surface is higher than the belt surface, the laser head 31 of the marking machine 3 (i.e. the output end of the marking machine 3) faces the trapezoidal frame 61 and is coaxially arranged with the trapezoidal frame 61 to identify and mark the chip 7 on the depending surface, the limiting rod 62 is movably arranged in the trapezoidal frame 61, and one end of the limiting rod 62 can limit one end of the depending surface to block the chip 7 moving on the depending surface, thereby limiting the chip 7 to stay for identification and marking by the laser head 31.

[0023] Preferably, the rack 1 is further provided with a blanking unit 5, the blanking unit 5 comprises an inclined blanking guide rail 51 and an intercepting head 52 arranged at the low position of the blanking guide rail 51, and the intercepting head 52 limits the interval of blanking through a single-chip microcomputer controlled air cylinder.

[0024] Preferably, the rack 1 is provided with a tension pulley 222 for pulling the conveying belt 22, the rack 1 comprises a profiled square frame 11, an opening 111 is formed in a steel plate on the top of the profiled square frame 11, a door plate 12 is arranged on the side of the profiled square frame 11, a driving motor 23 and a driving wheel 220 are arranged at the opening 111, for driving the conveying belt 22 to move, a recess 221 is formed by the tension pulley 222 for pulling the conveying belt 22, the recess 221 corresponds to the limiting rod 62, and provides a position for the ladder-shaped frame 61.

[0025] In the above scheme, through the ladder-shaped frame 61 for accommodating the recess 221, when the conveying belt 22 conveys the chip 7, a supporting surface higher than the surface of the conveying belt 22 is formed, so that the camera of the marking machine 3 can identify the chip 7 and distinguish it from the other chips 7, thereby accelerating the identification speed, and when the chip 7 is located on the supporting surface, it will be limited by the limiting rod 62 and stay still before being pushed by another chip 7, thereby reserving the marking time and avoiding the compression and blurring of the font or picture on the chip 7.

[0026] In another embodiment of the present application, the limiting rod 62 is movably arranged on the side plate 612 on both sides of the ladder-shaped frame 61, and the first end of the limiting rod 62 is provided with a limiting plate 621 extending out of the ladder-shaped frame 61 to limit the chip 7.

[0027] Specifically, the first end (the left end for reference) of the limiting rod 62 is provided with the limiting plate 621 extending out of the ladder-shaped frame 61, and the limiting plate 621 is arranged in the vertical direction. Figure 6 When the chip 7 enters the supporting surface along the inclined surface of one end of the ladder-shaped frame 61 with the conveying of the conveying belt 22, it will be blocked and paused by the limiting plate 621, at which time the marking operation can be performed, the chip 7 is provided with a pin 71, the pin 71 is arranged in two rows, the upper end of the chip 7 is a plastic package, the limiting rod 62 contacts the bottom of the plastic package to block it, without limiting the pin 71.

[0028] Preferably, the ladder-shaped frame 61 is provided with a central notch 611 at both ends, and the second end (the right end for reference, the first end is the left end) of the limiting rod 62 extends out of the central notch 611 (i.e. towards the conveying belt 22). Figure 6 When there is a chip 7 on the supporting surface, another chip 7 is pushed against the second end of the limiting rod 62 with the movement of the conveying belt 22, so that the limiting plate 621 is retracted into the ladder-shaped frame 61, at which time the chip 7 on the supporting surface can be pushed away from the supporting surface by the subsequent chip 7 and conveyed away on the conveying belt 22. The chip 7 is a single-chip microcomputer packaged in a dual in-line package, which is light in weight and easy to move on the ladder-shaped frame 61.

[0029] In still another embodiment of the present application, the second end of the limiting rod 62 is provided with a first friction wheel 624 abutting the chip 7, and the chip 7 is pushed to move along the first friction wheel 624 to the trapezoidal frame 61.

[0030] Specifically, the first friction wheel 624 and the second friction wheel 625 are rotatably connected to the limiting rod 62 respectively, the size of the first friction wheel 624 is larger than that of the second friction wheel 625, and the two are frictionally connected to each other, when the chip 7 moves towards the second end of the limiting rod 62 along the conveying belt 22, the chip 7 will abut the bottom of the plastic package body of the second friction wheel 625 and stop, and when another chip 7 moves towards the second end of the limiting rod 62 along the conveying belt 22, it will hit the chip 7 that stops abutting the first friction wheel 624, so that the movable limiting rod 62 moves, and pushes the chip 7 abutting the first friction wheel 624 to move beyond the first friction wheel 624, so as to move towards the bearing surface of the trapezoidal frame 61.

[0031] Preferably, the trapezoidal frame 61 is provided with side plates 612 on both sides, a cross bar is arranged between the side plates 612, an elastic supporting piece 63 is arranged between the second end of the limiting rod 62 and the cross bar, the elastic supporting piece 63 lifts the second end of the limiting rod 62 when the second end of the limiting rod 62 is not hit, when another chip 7 moves towards the second end of the limiting rod 62 along the conveying belt 22, it will hit the chip 7 that stops abutting the first friction wheel 624, and sink when the chip 7 moves beyond the second friction wheel 625, so as to bend the elastic supporting piece 63, so that the second friction wheel 625 is coupled to rotate the conveying belt 22, so as to drive the first friction wheel 624 to rotate and convey the chip 7 to the bearing surface.

[0032] In still another embodiment of the present application, the side plate 612 is provided with an inclined path 613, the first end of the limiting rod 62 is provided with a connecting column 623 slidingly connected in the inclined path 613, and a reed 614 is arranged between the inclined path 613 and the connecting column 623.

[0033] Specifically, the connecting column 623 is located at the welding position of the limiting rod 62 and the limiting plate 621, the reed 614 (the reed 614 is a spring metal sheet or a leaf spring) is arranged in the inclined path 613 for pushing the connecting column 623, when another chip 7 moves towards the second end of the limiting rod 62 along the conveying belt 22 and hits the chip 7 that stops abutting the first friction wheel 624, the connecting column 623 slides along the inclined path 613, at this time, the limiting plate 621 is partially retracted into the trapezoidal frame 61, and does not block the plastic package body of the chip 7, so that the chip 7 on the bearing surface is pushed by the chip 7 that moves beyond the second friction wheel 625 to move down along the inclined surface of the trapezoidal frame 61 to the conveying belt 22, so that the conveying belt 22 takes away the chip 7 that has been marked.

[0034] Preferably, the limiting plate 621 is provided with a metal head, and the chip 7 is provided with a pin 71 at the bottom, when the pin 71 contacts the conveying belt 22, it will be taken away, and when another chip 7 passes the first friction wheel 624, the first end of the limiting plate 621 cannot reset because the metal head is attached to the bottom of the chip 7, until the chip 7 is away from the metal head and resets.

[0035] In still another embodiment of the present application, the smoke extraction pipe 4 connected to the air extractor is further provided, and the horizontal horn cover 41 is fixedly connected to the end of the smoke extraction pipe 4, and the horn cover 41 faces the trapezoidal frame 61.

[0036] The limiting frame 21 for limiting the chip 7 is arranged on both sides of the conveying belt 22, and the bottom extraction groove 211 is arranged on the limiting frame 21 facing the horn cover 41.

[0037] Specifically, the limiting frame 21 is fixedly connected to the profile square frame 11 by fasteners, for limiting the position of the chip 7 on the conveying belt 22, and the chip 7 is provided with a pin 71 at the bottom, and after the chip 7 is lifted on the relying surface of the trapezoidal frame 61 during marking, the bottom extraction groove 211 on the limiting frame 21 faces the pin 71, so that the smoke generated during marking can be quickly extracted at the first time when the air extractor works, avoiding affecting the camera during subsequent marking, and the additional air duct at the pin 71 can avoid the smoke being retained between the limiting frame 21 and the chip 7 during air extraction.

[0038] Preferably, the marking machine 3 comprises an adjustable base 32 fixedly connected to the profile square frame 11 by fasteners, and the adjustable base 32 is provided with an adjusting screw 321, and the laser head 31 is arranged on the adjusting screw 321, so as to control the marking distance.

[0039] Before marking starts, two chips 7 are respectively placed on the relying surface of the trapezoidal frame 61 and the conveying belt 22 abutting the first friction wheel 624, and then the marking machine 3 and the unloading unit 5 are started, at this time, the marking machine 3 marks the chip 7 on the relying surface, when the marking is completed, the chip 7 unloaded by the unloading unit 5 is impacted on the chip 7 stopped abutting the first friction wheel 624 by the conveying belt 22, at this time, the connecting column 623 slides along the inclined path 613, and the limiting plate 621 partially retracts into the trapezoidal frame 61, without blocking the plastic package of the chip 7, and the chip 7 after marking falls partially on the conveying belt 22 and is moved away, and the chip 7 abutting the first friction wheel 624 is pushed to pass the first friction wheel 624 and moves to the relying surface of the trapezoidal frame 61, and the first friction wheel 624 rotates to convey the chip 7 to the relying surface, completing the replacement of the chip 7 on the relying surface, and the horn cover 41 and the bottom extraction groove 211 are used for suction during marking, to cope with the next marking.

[0040] The foregoing merely illustrates some exemplary embodiments of the application, and it will be appreciated that those skilled in the art will be able to devise various modifications without departing from the spirit and scope of the application. The appended drawings and description are illustrative only, and are not intended to be limiting.

Claims

1. A full-automatic laser ink-jet printer with accurate positioning, comprising a rack (1) and a marking machine (3), characterized in that, Also include: The conveying assembly (2) includes a conveying belt (22) for conveying the chips (7) and having a recess (221); The positioning mechanism (6) includes a ladder-shaped frame (61) fixedly installed on the rack (1) and covering the port of the recess (221), the ladder-shaped frame (61) includes a support surface higher than the conveying belt (22), and the ladder-shaped frame (61) is coaxial with the output end of the marking machine (3); The limiting rod (62) movably arranged in the ladder-shaped frame (61) is arranged in the ladder-shaped frame (61), and the chip (7) is moved to the ladder-shaped frame (61) along with the conveying belt (22) and is limited by the limiting rod (62).

2. The precise positioning full-automatic laser inkjet printer according to claim 1, characterized in that, The limiting rod (62) is movably arranged on the side plate (612) on both sides of the ladder-shaped frame (61), and the first end of the limiting rod (62) is provided with a limiting plate (621) extending out of the ladder-shaped frame (61) to limit the chip (7).

3. The precise positioning full-automatic laser inkjet printer according to claim 2, characterized in that, The ladder-shaped frame (61) is provided with a center notch (611) at both ends, and the second end of the limiting rod (62) extends out of the center notch (611), and the chip (7) is moved along with the conveying belt (22) and pushes against the second end of the limiting rod (62), so that the limiting plate (621) is retracted into the ladder-shaped frame (61).

4. The precise positioning full-automatic laser inkjet printer according to claim 1, characterized in that, The second end of the limiting rod (62) is provided with a first friction wheel (624) abutting the chip (7), and the chip (7) is moved along the first friction wheel (624) to the ladder-shaped frame (61) along with another chip (7).

5. The precise positioning full-automatic laser inkjet printer according to claim 4, characterized in that, The second end of the limiting rod (62) and the ladder-shaped frame (61) are provided with an elastic supporting piece (63), and the limiting rod (62) is compressed after moving by the chip (7) to make the first friction wheel (624) coupled with the conveying belt (22) to rotate.

6. The precise positioning full-automatic laser inkjet printer according to claim 1, characterized in that, The rack (1) is provided with a tensioning wheel (222) for pulling the conveying belt (22), the recess (221) is formed by the tensioning wheel (222), and the recess (221) corresponds to the limiting rod (62).

7. The precise positioning full-automatic laser inkjet printer according to claim 3, characterized in that, The side plate (612) is provided with an inclined channel (613), and the first end of the limiting rod (62) is provided with a connecting column (623) slidably connected in the inclined channel (613), and a spring piece (614) is arranged between the inclined channel (613) and the connecting column (623).

8. The precise positioning full-automatic laser inkjet printer according to claim 1, characterized in that, Also include a smoke extraction pipe (4) connected with an air extractor, the smoke extraction pipe (4) is fixedly connected with a horizontally arranged horn cover (41) at the end, and the horn cover (41) faces the ladder-shaped frame (61).

9. The precise positioning full-automatic laser inkjet printer according to claim 8, characterized in that, The conveying belt (22) is provided with a limiting frame (21) for limiting the chip (7) on both sides, and the limiting frame (21) facing the horn cover (41) is provided with a bottom extraction groove (211).

10. The precise positioning full-automatic laser inkjet printer according to claim 3, characterized in that, The limiting plate (621) is provided with a metal head, and the chip (7) is provided with a pin (71) at the bottom, and the metal head is abutted with the bottom of the chip (7) when the limiting plate (621) is retracted and reset.

Images