Automatic code reading device

Abstract

The present invention discloses an automatic code reading device including a frame, a camera and a light source corresponding to the camera, two groups of transfer mechanisms arranged in the frame and used to move the camera and the light source, and a transmission mechanism arranged between the two groups of transfer mechanisms and used to transmit a material tray, wherein the transfer mechanism and the transmission mechanism are both provided with a sliding component and a traction component, and the two groups of transfer mechanisms are arranged relatively up and down. The beneficial effects of the present invention are that the image quality of the camera is improved by providing a light source and its fixing component, and the code leakage phenomenon is avoided by moving the camera in the X and Y directions, the SMT material tray to be scanned is placed on the belt of the transmission mechanism and transmitted, and the camera reads the code of the SMT material tray. Compared with the manual code reading method, the intelligent code reading method reduces the labor intensity, reduces the labor cost, saves the code reading time, improves the code reading efficiency, and improves the accuracy of code reading. It has a simple structure and strong practicality.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, in particular to an automatic code reading device. Background Art

[0002] SMT trays are carriers of electronic components such as resistors, transistors, and capacitors. One-dimensional / two-dimensional codes are present on their outer surfaces. SMT trays can be managed by reading the one-dimensional / two-dimensional codes on them. Currently, in warehouse management, manual scanning is used to read the one-dimensional / two-dimensional codes on SMT trays, which is labor-intensive and labor-cost-intensive, and inefficient, and prone to missed scans.

[0003] In view of the above situation, it is necessary to improve the existing one-dimensional / two-dimensional code reading method on the SMT material tray so that it can meet the needs of fast and accurate code reading. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and to design an automatic code reading device.

[0005] The technical solution of the present invention to achieve the above-mentioned purpose is an automatic code reading device, including a frame, a camera and a light source corresponding to the camera, and also including:

[0006] Two sets of transfer mechanisms, arranged in the frame, for moving the camera and the light source;

[0007] A transmission mechanism, disposed between the two groups of transfer mechanisms, for transmitting the material tray;

[0008] The transfer mechanism and the transmission mechanism are both provided with a sliding assembly and a traction assembly, and the two groups of transfer mechanisms are arranged opposite to each other up and down.

[0009] As a further explanation of the present invention, the transfer mechanism includes a fixed component connected to the light source, a first fixed plate and a second fixed plate connected to the frame, the traction component arranged on the first fixed plate, the sliding component arranged on the second fixed plate, a third fixed plate arranged on the traction component and the sliding component, the sliding component arranged on the third fixed plate, a connecting block connected to the sliding component, a first limit block connected to the connecting block, a support block arranged below the first limit block, and a first vertical guide rod passing through the first limit block and the support block.

[0010] As a further explanation of the present invention, the connecting block is in a 7-shape, the horizontal direction of the connecting block is connected to the sliding assembly, the vertical direction of the connecting block is connected to both the sliding assembly and the third fixed plate, and the first limit block is connected to the vertical direction of the connecting block.

[0011] As a further explanation of the present invention, the support block is in a 7-shape, the first vertical guide rod passes through the first limit block and the horizontal direction of the support block from top to bottom in sequence, and the camera is connected to the vertical direction of the support block.

[0012] As a further explanation of the present invention, the fixing assembly includes a transverse guide rod connected to the frame at both ends, a fixing block sleeved on the transverse guide rod, a connecting aluminum plate connected to the fixing block, a second limit block connected to the connecting aluminum plate, and a second vertical guide rod passing through the second limit block, wherein the second vertical guide rod is connected to the light source.

[0013] As a further explanation of the present invention, two transverse guide rods are provided, and the two transverse guide rods are respectively located on one side of the first fixed plate and the second fixed plate, and two fixed blocks are sleeved on each transverse guide rod. Two connecting aluminum plates are provided, and the third fixed plate is located between the two connecting aluminum plates.

[0014] As a further explanation of the present invention, the transmission mechanism includes an upper aluminum plate arranged between two groups of transfer mechanisms, a notch opened on and passing through the upper aluminum plate, the sliding assembly and the traction assembly respectively arranged on both sides of the notch and located on the upper aluminum plate, a connecting plate arranged on the sliding assembly and the traction assembly, a movable plate connected to the connecting plate, a limit plate arranged on one side of the movable plate, a driving wheel and a plurality of synchronous wheels are arranged on the opposite surfaces of the movable plate and the limit plate, a belt wound around the driving wheel and the plurality of synchronous wheels and closed, a driving motor connected to the driving wheel, and a positioning cylinder arranged on the side of the movable plate, wherein the upper aluminum plate is connected to the frame, the upper aluminum plate is in a U-shape, the connecting plate and the movable plate form an L-shape, the limit plate is located on the upper aluminum plate and is in a vertical relationship, and the movable plate and the limit plate are in a parallel relationship.

[0015] As a further description of the present invention, the sliding assembly includes a sliding rail and a sliding block slidably connected to the sliding rail.

[0016] As a further explanation of the present invention, the traction assembly includes a screw rod, a crank connected to one end of the screw rod, two support frames and a ball nut sleeved on the screw rod, and a fixed aluminum block sleeved on the ball nut, wherein the fixed aluminum block is located between the two support frames.

[0017] Its beneficial effects are that the image quality of the camera is improved by providing a light source and its fixing components; the code missing phenomenon is avoided by providing an upper and lower group of transfer mechanisms corresponding to each other and coordinating the movement of the camera in the X and Y directions; the transmission of the SMT tray is realized by providing a transmission mechanism, and the transmission mechanism is suitable for SMT trays of various specifications by adjusting the distance between the limit plate and the movable plate; the staff only needs to put the SMT tray to be scanned on the belt of the transmission mechanism and transmit it, and the camera reads the code of the SMT tray. Compared with the manual code reading method, the intelligent code reading method reduces the labor intensity, reduces the labor cost, saves the code reading time, improves the code reading efficiency, and improves the accuracy of code reading. It has a simple structure and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the internal structure of the framework of the present invention;

[0019] Figure 2 It is a schematic diagram of the external structure of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the transmission mechanism of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the transfer mechanism of the present invention;

[0022] Figure 5 The present invention Figure 4 A local enlarged schematic diagram of the middle A;

[0023] In the figure, 1. frame; 2. camera; 3. light source; 4. transfer mechanism; 4011. horizontal guide rod; 4012. fixed block; 4013. connecting aluminum plate; 4014. second limit block; 4015. second vertical guide rod; 402. first fixed plate; 403. second fixed plate; 404. third fixed plate; 405. connecting block; 406. first limit block; 407. supporting block; 408. first vertical guide rod; 5. transmission mechanism; 501. upper aluminum plate; 502. connecting plate; 503. movable plate; 504. limit plate; 505. driving wheel; 506. synchronous wheel; 507. belt; 508. driving motor; 509. positioning cylinder; 6. sliding assembly; 7. traction assembly. DETAILED DESCRIPTION

[0024] Since the requirements for the management and storage of SMT trays are getting higher and higher, and the existing SMT tray code reading adopts the manual scanning method, there will be problems such as long time consumption, high labor intensity, high labor cost, low efficiency, and missed scanning. Therefore, we have designed an automatic code reading device. The technical solution of the invention will be described in detail according to the attached drawings below;

[0025] like Figure 1-Figure 5 As shown, the automatic code reading device of the present invention includes a frame 1, a camera 2 and a light source 3 corresponding to the camera 2, and also includes two groups of transfer mechanisms 4 arranged in the frame 1 and used to move the camera 2 and the light source 3, and a transmission mechanism 5 arranged between the two groups of transfer mechanisms 4 and used to transmit the material tray, wherein the transfer mechanism 4 and the transmission mechanism 5 are both provided with a sliding component 6 and a traction component 7, and the two groups of transfer mechanisms 4 are arranged opposite to each other in an upper and lower direction. The specific structure and principle of the transfer mechanism 4 and the transmission mechanism 5 will be described below.

[0026] First, the sliding assembly 6 and the traction assembly 7 are explained to facilitate the following description. The sliding assembly 6 includes a slide rail and a slider slidably connected to the slide rail; the traction assembly 7 includes a screw rod, a crank connected to one end of the screw rod, two support frames and a ball nut mounted on the screw rod, and a fixed aluminum block mounted on the ball nut, wherein the fixed aluminum block is located between the two support frames.

[0027] The transfer mechanism 4 includes a fixing assembly connected to the light source 3, a first fixing plate 402 and a second fixing plate 403 connected to the frame 1, a traction assembly 7 arranged on the first fixing plate 402, a sliding assembly 6 arranged on the second fixing plate 403, a third fixing plate 404 arranged on the traction assembly 7 and the sliding assembly 6, a sliding assembly 6 arranged on the third fixing plate 404, a connecting block 405 connected to the sliding assembly 6, a first limiting block 406 connected to the connecting block 405, a supporting block 407 arranged below the first limiting block 406, and a first vertical guide rod 408 passing through the first limiting block 406 and the supporting block 407;

[0028] The connecting block 405, the first limit block 406, the support block 407 and the first vertical guide rod 408 play a connecting role, so that the camera 2 can move along the direction of the third fixed plate 404 (for the sake of distinction, this direction is defined as the X direction). The connecting block 405 is in the shape of a figure 7. The horizontal direction of the connecting block 405 is connected to the sliding component 6. The vertical direction of the connecting block 405 is connected to both the sliding component 6 and the third fixed plate 404. The first limit block 406 is connected to the vertical direction of the connecting block 405. The support block 407 is in the shape of a figure 7. The first vertical guide rod 408 passes through the horizontal directions of the first limit block 406 and the support block 407 from top to bottom in sequence. The camera 2 is connected to the vertical direction of the support block 407. The slider slides on the slide rail. Since the slider is connected to the connecting block 405, the slider drives the camera 2 to move synchronously in the X direction. The traction component 7 on the first fixed plate 402 and the sliding component 6 on the second fixed plate 403 realize the movement of the camera 2 in the Y direction. By shaking the handle, the ball nut moves on the screw rod, and the third fixed plate 404 is connected to the fixed aluminum block, so the third fixed plate 404 will move with the fixed aluminum block. At the same time, the third fixed plate 404 is also connected to the slider. The slider moves synchronously with the ball nut on the slide rail, so the camera 2 can move in the Y direction. The movement of the camera 2 can better read the SMT material tray, and the transfer mechanism 4 is provided with two upper and lower groups corresponding to each other to avoid missing codes.

[0029] The fixing assembly in the transfer mechanism 4 is used to fix the light source 3, and the fixing assembly includes a transverse guide rod 4011 connected to the frame 1 at both ends, a fixing block 4012 sleeved on the transverse guide rod 4011, a connecting aluminum plate 4013 connected to the fixing block 4012, a second limit block 4014 connected to the connecting aluminum plate 4013, and a second vertical guide rod 4015 passing through the second limit block 4014, wherein the second vertical guide rod 4015 is connected to the light source 3; two transverse guide rods 4011 are provided, and the two transverse guide rods 4011 are respectively located on the first fixing plate 402 and the second fixing plate 402. On one side of the second fixed plate 403, two fixed blocks 4012 are sleeved on each horizontal guide rod 4011, two connecting aluminum plates 4013 are provided, and the third fixed plate 404 is located between the two connecting aluminum plates 4013. Four second vertical guide rods 4015 are provided, and the four second vertical guide rods 4015 are respectively connected to the four corners of the light source 3; the light source 3 in the upper transfer mechanism 4 is located below the camera 2, and the light source 3 in the lower transfer mechanism 4 is located above the camera 2, and the camera 2 is located between the four second vertical guide rods 4015, and the light source 3 improves the image quality of the camera 2.

[0030] The transmission mechanism 5 is connected to the frame 1 through the upper aluminum plate 501. The upper aluminum plate 501 is located between two sets of transfer mechanisms 4. Since the upper aluminum plate 501 is provided with a through slot, the upper aluminum plate 501 is in a shape of a Chinese character "hui". In the transmission mechanism 5, the sliding component 6 and the traction component 7 are respectively located on both sides of the slot, so they are also located on the upper aluminum plate 501. They are connected by a connecting plate 502 provided on the sliding component 6 and the traction component 7, and synchronous movement can be achieved. The connecting plate 502 is connected to a movable plate 503, and the connecting plate 502 and the movable plate 503 form an L shape. A limiting plate 504 is provided on one side of the movable plate 503. The limiting plate 504 is located on the upper aluminum plate 501 and is in a vertical relationship, and the movable plate 503 and the limiting plate 504 are in a parallel relationship. By turning the crank handle, the ball nut moves on the lead screw. Since the connecting plate 502 is connected to the fixed aluminum block, the connecting plate 502 will move with the fixed aluminum block. At the same time, the connecting plate 502 is also connected to a slider, and the slider moves synchronously with the ball nut on the slide rail. Therefore, the connecting plate 502 can drive the movable plate 503 to approach or move away from the limiting plate 504, thereby controlling the distance between the movable plate 503 and the limiting plate 504, so that the transmission mechanism 5 can be applicable to multiple specifications. A positioning cylinder 509 is provided on the side surface of the movable plate 503 to position the SMT tray. In the transmission mechanism 5, a driving wheel 505 and a plurality of synchronous wheels 506 are provided on the opposite surfaces of the movable plate 503 and the limiting plate 504, and a closed belt 507 is wound around the driving wheel 505 and the plurality of synchronous wheels 506. The driving wheel 505 is connected to a driving motor 508. Driven by the driving motor 508, the driving wheel 505 rotates to make the belt 507 move, and the synchronous wheels 506 assist the movement of the belt 507, thereby realizing the transmission of the SMT tray.

[0031] The staff places the SMT tray to be scanned on the belt 507 of the transmission mechanism 5 and conveys it. The camera 2 reads the code of the SMT tray. The intelligent code reading method reduces the labor intensity of workers, reduces the labor cost, saves the code reading time, improves the code reading efficiency, and improves the accuracy of code reading compared with the manual code reading method. Therefore, the automatic code reading device of the present invention has strong practicability.

[0032] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made by those skilled in the art to some parts thereof all reflect the principles of the present invention and are within the protection scope of the present invention.

Claims

1. An automatic code reading device, comprising a frame (1), a camera (2) and a light source (3) corresponding to the camera (2), characterized in that: Also includes, Two sets of transfer mechanisms (4), arranged in the frame (1), for moving the camera (2) and the light source (3); A transmission mechanism (5) is arranged between the two sets of transfer mechanisms (4) and is used for transmitting the material tray; The transfer mechanism (4) and the transmission mechanism (5) are both provided with a sliding assembly (6) and a traction assembly (7), and the two groups of transfer mechanisms (4) are arranged opposite to each other in an upper and lower direction; The transfer mechanism (4) comprises a fixing assembly connected to the light source (3), a first fixing plate (402) and a second fixing plate (403) connected to the frame (1), the traction assembly (7) arranged on the first fixing plate (402), the sliding assembly (6) arranged on the second fixing plate (403), a third fixing plate (404) arranged on the traction assembly (7) and the sliding assembly (6), the sliding assembly (6) arranged on the third fixing plate (404), a connecting block (405) connected to the sliding assembly (6), a first limiting block (406) connected to the connecting block (405), a supporting block (407) arranged below the first limiting block (406), and a first vertical guide rod (408) passing through the first limiting block (406) and the supporting block (407); The transmission mechanism (5) comprises an upper aluminum plate (501) arranged between two groups of transfer mechanisms (4), a notch opened on and passing through the upper aluminum plate (501), the sliding assembly (6) and the traction assembly (7) respectively arranged on both sides of the notch and located on the upper aluminum plate (501), a connecting plate (502) arranged on the sliding assembly (6) and the traction assembly (7), a movable plate (503) connected to the connecting plate (502), a limiting plate (504) arranged on one side of the movable plate (503), and driving wheels (505) and a pulley (506) arranged on the opposite surfaces of the movable plate (503) and the limiting plate (504). A plurality of synchronous wheels (506), a belt (507) wound around the driving wheel (505) and the plurality of synchronous wheels (506) and closed, a driving motor (508) connected to the driving wheel (505), and a positioning cylinder (509) arranged on the side of the movable plate (503), wherein the upper aluminum plate (501) is connected to the frame (1), the upper aluminum plate (501) is in a U-shape, the connecting plate (502) and the movable plate (503) form an L-shape, the limiting plate (504) is located on the upper aluminum plate (501) and is in a vertical relationship, and the movable plate (503) and the limiting plate (504) are in a parallel relationship.

2. An automatic code reading device according to claim 1, characterized in that: The connecting block (405) is in a 7-shape; the connecting block (405) is connected to the sliding assembly (6) in the horizontal direction; the connecting block (405) is connected to both the sliding assembly (6) and the third fixed plate (404) in the vertical direction; and the first limiting block (406) is connected to the connecting block (405) in the vertical direction.

3. The automatic code reading device according to claim 1, characterized in that: The support block (407) is in a 7-shape, the first vertical guide rod (408) passes through the first limit block (406) and the horizontal direction of the support block (407) in sequence from top to bottom, and the camera (2) is connected to the support block (407) in the vertical direction.

4. The automatic code reading device according to claim 1, characterized in that: The fixing assembly comprises a transverse guide rod (4011) connected to the frame (1) at both ends, a fixing block (4012) sleeved on the transverse guide rod (4011), a connecting aluminum plate (4013) connected to the fixing block (4012), a second limit block (4014) connected to the connecting aluminum plate (4013), and a second vertical guide rod (4015) passing through the second limit block (4014), wherein the second vertical guide rod (4015) is connected to the light source (3).

5. An automatic code reading device according to claim 4, characterized in that: Two transverse guide rods (4011) are provided, and the two transverse guide rods (4011) are respectively located on one side of the first fixing plate (402) and the second fixing plate (403), and two fixing blocks (4012) are sleeved on each transverse guide rod (4011). Two connecting aluminum plates (4013) are provided, and the third fixing plate (404) is located between the two connecting aluminum plates (4013).

6. The automatic code reading device according to claim 1, characterized in that: The sliding assembly (6) comprises a sliding rail and a sliding block slidably connected to the sliding rail.

7. The automatic code reading device according to claim 1, characterized in that: The traction assembly (7) comprises a screw rod, a crank connected to one end of the screw rod, two support frames and a ball nut sleeved on the screw rod, and a fixed aluminum block sleeved on the ball nut, wherein the fixed aluminum block is located between the two support frames.

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