An SMT automatic material counting and sorting equipment

Abstract

The present invention relates to an SMT automatic material counting and dispensing device, including a device housing and a material counting mechanism, wherein the material counting mechanism includes: a material tray mounting assembly, including a mounting head capable of rotation and a mounting head rotation driving component for driving the mounting head to rotate; a material counting assembly for counting the number of materials; a CCD assembly, including a CCD detection component located above the material counting assembly for recording the first material position, the type and spacing of the materials, and the last material position on the material belt; a material belt transfer assembly, including a rotating turntable capable of rotation and a turntable rotation driving component for driving the turntable to rotate; and a controller. The present invention can automatically complete the counting of materials without manual intervention, with fast material counting speed, accurate material counting, and high degree of automation; it can also realize the work of material dispensing by setting the number of materials, with rich functions, and meeting the dual needs of material counting and material dispensing.

Description

Technical Field

[0001] The invention relates to the technical field of SMT, and in particular to an SMT automatic material counting and sorting device. Background Art

[0002] SMT is the abbreviation of surface mount technology (Surface Mount Technology), which is the most popular technology and process in the current electronic assembly industry. It is a circuit assembly technology that mounts pinless or short-lead surface mount components on the surface of a printed circuit board or other substrate, and assembles them by soldering through methods such as reflow soldering or dip soldering. SMT tape is the main raw material of SMT, which includes a tape body (referred to as tape in this application), components loaded on the tape body (the material described in this application), and a cover tape covering the tape body to encapsulate the components on the tape body, wherein: there is a certain distance at the beginning and end of the tape body where no components are loaded, that is, there is a certain distance of blank space.

[0003] During the SMT production process, when a machine is completed, the unused SMT tapes need to be sent back to the warehouse, and the warehouse staff will count the remaining components on the SMT tape body, and form a new label with the number of items on the list and the ID of the corresponding tray, and print it out and stick it on the tray of the tape, and upload the new data to the MES system through the wireless system. However, this manual counting method is time-consuming and labor-intensive, with a low degree of automation, and is affected by human factors, which may lead to counting errors and low counting accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide an SMT automatic material counting and distributing device, which can realize the automatic material counting of material strips and also realize the function of material distributing.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] An SMT automatic material counting and dispensing device comprises a device housing and a material counting mechanism arranged on the device housing, wherein the material counting mechanism comprises:

[0007] A tray mounting assembly, comprising a mounting head rotatably disposed on the equipment housing for mounting the tray to be counted, and a mounting head rotation driving component for driving the mounting head to rotate;

[0008] Material counting component, used to count the quantity of materials;

[0009] A CCD component, including a CCD detection component located above the material point component for recording the first material position, the type and spacing of the materials, and the last material position on the material belt;

[0010] The material belt transfer assembly includes a transfer disk rotatably arranged on the equipment housing for winding and counting the material belt, and a transfer disk rotation driving component for driving the transfer disk to rotate;

[0011] The controller is connected with the material tray installation component, the material point component, the CCD component and the material belt transfer component to control their actions.

[0012] Preferably, the mounting head can be movably arranged on the equipment housing in the direction of the material counting component, and the material tray mounting assembly also includes a mounting head moving driving component for driving the mounting head to move, and the mounting head moves toward the material counting component simultaneously with the unwinding of the material tape, so that when the CCD detection component records the last material, there is still a blank part of the material tape wound on the material tray.

[0013] Preferably, the device also includes a sensor assembly located below the material tray mounting assembly, the sensor assembly includes a sensor component for detecting the amount of remaining material on the material belt, the controller is connected to the sensor component, and during the material counting process, when the material on the material belt is almost finished, the approximate remaining amount of material on the material belt is detected by the sensor component, the amount of remaining material is controlled, the counting speed is slowed down, and the CCD is conducive to accurately identifying the last material in the material belt.

[0014] Further preferably, the sensor assembly further comprises a sensor housing having a sensor channel, and the sensor component is arranged inside the sensor housing.

[0015] Preferably, the device also includes a disc dividing component located below the material tray mounting assembly and used to prevent the discs on both sides from getting close to each other when the material tray moves. The material tray may be deformed as the mounting head moves toward the material point assembly, causing the discs on both sides to get close to each other. When the sensing component is set, the discs that are close to each other will block the sensing of the sensing component. Therefore, the disc dividing component can ensure that a certain distance is maintained between the discs of the material tray.

[0016] Further preferably, the partition component is L-shaped or V-shaped, and the partition component is arranged on the sensor housing.

[0017] Preferably, the material counting assembly includes a feeding track, a material counting gear arranged on the feeding track for driving the material belt to move forward, an encoder connected to the material counting gear for counting the amount of materials, and a gear rotation driving component for driving the material counting gear to rotate.

[0018] Further preferably, the material point assembly includes a lower support member and an upper covering member, the feeding track is formed between the lower support member and the upper covering member, the upper covering member is provided with a first material detection port and a last material detection port, and the first material detection port is located downstream of the last material detection port.

[0019] Further preferably, the material pointing assembly also includes a sensing component arranged at the front of the feeding track for sensing the material head of the material belt. When the sensing component senses the material head of the material belt, the gear rotation driving component drives the material pointing gear to rotate and feed the material.

[0020] Preferably, the device also includes a connecting track assembly, the controller is connected to the connecting track assembly and controls its action, the connecting track assembly includes a connecting track located between the material point assembly and the central turntable and capable of extending or retracting into the device housing, and a connecting track telescopic driving component that drives the connecting track to extend or retract, when the connecting track is in the state of extending out of the device housing, the material belt enters the central turntable through the material point assembly and the connecting track, and the material belt is transitioned from the material point assembly to the central turntable through the connecting track assembly.

[0021] Further preferably, the turntable includes a core for winding the material tape, and a material head channel extending into the interior of the core is provided on the circumferential surface of the core. When the connecting track is in the position of extending out of the equipment housing, the material head channel of the core is docked with the connecting track. Since the material head of the material tape cannot be automatically wound around the turntable, the material head of the material tape first extends into the material head channel of the core. When enough material heads of the material tape enter the material head channel, the turntable can rotate to allow the material tape to be wound around the core of the turntable.

[0022] Preferably, the material head channel is a curved channel, which can prevent the material head of the material belt from falling off when the middle turntable rotates.

[0023] Preferably, the CCD detection component has a first position for recording the first material position on the material tape and a second position for recording the last material position on the material tape, and the first position is located downstream of the second position. The CCD assembly also includes a CCD moving drive component for driving the CCD detection component to move between the first position and the second position.

[0024] Preferably, the material counting mechanisms are respectively arranged on both sides of the equipment housing, and material counting of two material trays can be performed simultaneously through independent double workstations.

[0025] Preferably, the device further comprises a printing component for printing labels, the controller is connected to the printing component for controlling its action, and the printing component can print information of counting materials.

[0026] Preferably, the device further comprises an operation interface for issuing instructions to the device, and the operation interface is connected to the controller for inputting operation instructions.

[0027] The working principle of the material point of the present invention is:

[0028] 1. The material head of the material belt extends into the feeding track, and the sensing component at the front end of the feeding track senses the entry of the material head and automatically feeds the material;

[0029] 2. The CCD detection component detects the first material position, material type and spacing, and the last material position on the material belt, and the encoder counts the number of materials on the material belt;

[0030] 3. After the counting component counts the materials on the material belt, the installation head automatically recycles the material belt without manual intervention;

[0031] 4. After completing the operation, the equipment will automatically reset and wait for the next material counting to start.

[0032] The working principle of the material distribution of the present invention is:

[0033] 1. Input the quantity of materials to be divided through the operation interface and perform the dividing operation.

[0034] 2. The material head of the material belt extends into the feeding track, and the sensing component at the front end of the feeding track senses the entry of the material head and automatically feeds the material;

[0035] 3. The CCD detection component detects the first material position, material type and spacing on the material belt, and the encoder counts the number of materials on the material belt and counts the materials to the specified number;

[0036] 4. Manually cut the material belt, collect the material tray, attach the label, and the equipment automatically uploads the data;

[0037] 5. Place the new material tray and rotate it. The device will sense it and automatically recycle it, while uploading data;

[0038] 6. After completing the operation, the equipment will automatically reset and wait for the next material counting to start.

[0039] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0040] 1. The present invention can automatically count materials without manual intervention, with fast and accurate counting speed and high degree of automation;

[0041] 2. The present invention can also realize the work of material distribution by setting the quantity of materials, and has rich functions to meet the dual needs of material counting and material distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Attached Figure 1-3 is a three-dimensional schematic diagram of this embodiment (only part of the device housing is shown);

[0043] Attached Figure 4 It is a front view schematic diagram of this embodiment;

[0044] Attached Figure 5a This is a schematic diagram of the CCD detection component in this embodiment when it is located at the first position;

[0045] Attached Figure 5b is a schematic diagram of the CCD detection component in this embodiment when it is located at the second position;

[0046] Attached Figure 5c This is a schematic diagram of the corresponding positions of the first position, the second position of the CCD detection component and the first material detection port and the last material detection port in this embodiment.

[0047] In the above attached figure:

[0048] 1. Equipment housing; 20. Mounting head; 21. Mounting head rotation drive component; 22. Mounting head movement drive component; 30. Lower support; 31. Upper cover; 310. First material detection port; 311. Last material detection port; 32. Feeding track; 33. Material point gear; 34. Encoder; 35. Gear rotation drive component; 40. CCD detection component; 41. CCD movement drive component; 50. Turntable; 500. Disc core; 501. Material head channel; 51. Turntable rotation drive component; 60. Connecting track; 61. Connecting track telescopic drive component; 70. Sensor housing; 700. Sensor channel; 8. Disk dividing component; 9. Material tray; 90. Disc. DETAILED DESCRIPTION

[0049] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] like Figure 1-4 The SMT automatic material counting and dispensing equipment shown comprises an equipment housing 1, a material counting mechanism arranged on the equipment housing 1, and an operation interface arranged on the equipment housing 1. The operation interface is used to input operation instructions to the equipment.

[0053] In this embodiment: a material-pointing mechanism is provided on both sides of the equipment housing, and two material trays can be pointed at the same time through independent double stations. Specifically, the material-pointing mechanism mainly includes:

[0054] Material tray installation assembly: It includes a mounting head 20 that can be rotatably arranged on the equipment housing 1 for setting the material tray 9 to be counted, and a mounting head rotation driving component 21 that drives the mounting head 20 to rotate. In this embodiment: the mounting head 20 can also move toward the direction of the material counting assembly, specifically move upward along the inclination shown in the figure, so the material tray installation assembly also includes a mounting head movement driving component 22 that drives the mounting head 20 to move. When counting materials: the material tray 9 is installed on the mounting head 20 to unwind the material tape to be counted, and the mounting head 20 moves toward the material counting assembly at the same time as the material tape is unwound, ensuring that there is still a blank part of the material tape wound on the material tray 9 after counting is completed; when rewinding the material, the mounting head 20 moves back and rewinds it.

[0055] Counting component: used to count the number of materials, including a feeding track 32 formed between the lower support 30 and the upper cover 31, a counting gear 33 arranged on the feeding track 32 for driving the material belt to move, an encoder 34 connected to the counting gear 33 for counting the number of materials, and a gear rotation driving component 35 for driving the counting gear 33 to rotate. In addition, the counting component also includes a sensing component (not shown in the figure) arranged at the front of the feeding track 32 for sensing the material head of the material belt. When the sensing component senses the material head of the material belt, the gear rotation driving component 35 drives the counting gear 33 to rotate and feed the material.

[0056] CCD assembly: It includes a CCD detection component 40 located above the material point assembly for recording the first material position on the material belt, the type and spacing of the materials, and the last material position. The CCD detection component 40 has a first position for recording the first material position on the material belt, such as Figure 5a As shown, the second position of the last material position on the tape is recorded, such as Figure 5b As shown, the first position is located downstream of the second position, so the CCD assembly also includes a CCD moving driving component 41 that drives the CCD detection component 40 to move between the first position and the second position. The CCD detection component 40 now records the first material position at the first position, and then the encoder 34 starts counting. The CCD detection component 40 then moves to the second position to record the last material position, and the encoder 34 stops counting. Since the feeding track 32 is blocked by the upper cover 31, the upper cover 31 is provided with a first material detection port 310 at the first position corresponding to the CCD detection component 40, and a last material detection port 311 at the second position corresponding to the CCD detection component 40, as shown in FIG. Figure 5c shown.

[0057] The material belt transfer assembly includes a turntable 50 rotatably arranged on the equipment housing 1 for winding up the material belt after counting, and a turntable rotation driving component 51 for driving the turntable 50 to rotate. The material belt after counting is first wound up on the turntable 50.

[0058] Connecting track assembly: It includes a connecting track 60 located between the feeding track 32 and the transfer disk 50 and capable of extending or retracting into the device housing 1, and a connecting track telescopic driving component 61 that drives the connecting track 60 to extend or retract. When the material head of the material belt enters the feeding track 32, the connecting track 60 extends out of the device housing 1 and docks with the feeding track 32 to transport the material head of the material belt to the transfer disk 50. When the material belt is normally wound on the transfer disk 50, the connecting track 60 will retract into the device housing 1.

[0059] When the material head of the material tape is delivered to the transfer disk 50, the material tape cannot be automatically wound on the transfer disk 50, so the transfer disk 50 also includes a disk core 500 for winding the material tape, and the disk core 500 is provided with a material head channel 501 extending to the inside thereof on its circumference. When the connecting track 32 is in the state of extending out of the device housing 1, the material head channel 501 of the disk core 500 docks with the connecting track 32, and the material head of the material tape first extends into the material head channel 501 of the disk core 500. When enough material heads of the material tape enter the material head channel 501, the transfer disk rotation driving component 51 drives the transfer disk 50 to rotate so that the material tape can be wound on the disk core 500 of the transfer disk 50, and the connecting track 60 will be retracted into the device housing 1. In order to prevent the material head of the material tape from falling off, the material head channel 501 adopts a curved channel.

[0060] The sensor assembly is located below the tray mounting assembly and includes a sensor housing 70 with a sensor channel 700, and a sensor component (not shown) disposed inside the sensor housing 70 for detecting the material on the material belt. The sensor component may be a distance sensor, for example. The signal of the distance sensor is transmitted to the material belt on the mounting head 20 through the sensor channel 700. During the counting process, when the material on the material belt is almost finished, the material on the material belt is detected by the sensor component to control the amount of remaining material and slow down the counting speed.

[0061] The disc dividing component 8 is located below the tray mounting assembly and is used to prevent the discs on both sides from getting close to each other when the tray moves. The tray 9 may be deformed as the mounting head 20 moves toward the material point assembly, causing the discs 90 on both sides to get close to each other. The discs that are close to each other will block the sensing of the sensor component. Therefore, the disc dividing component 8 can ensure that a certain distance is maintained between the discs 90 of the tray 9. In the present embodiment, the disc dividing component 8 is L- or V-shaped and is disposed on the sensor housing 70.

[0062] The controller can be an industrial computer, an operation interface and the above components are connected to realize the control of the whole device.

[0063] In addition, the equipment can also be equipped with a printing unit for printing labels, which can print various information of the counted materials.

[0064] The various driving components in this embodiment can be common driving components such as motors, cylinders, etc.

[0065] The material ordering process of this embodiment is described in detail below:

[0066] When using the equipment to count materials, first scan the unique code on the material, which is usually a one-dimensional code or a two-dimensional code. After scanning, the computer will record the one-dimensional code of the material. At the same time, the personnel put the material tray 9 into the mounting head 20 of the material counting mechanism on the corresponding side, and then insert the material head of the material belt into the feeding track 32 of the material counting component. After its sensing component senses the material belt, it starts the material counting gear 33 to move, which will drive the material belt to move forward automatically. The CCD detection component 40 automatically identifies and records the first material position, material type and spacing, and the encoder 34 starts to count the number of materials. After the material is counted, the material belt is reeled through the transfer plate 50. While counting the materials, the mounting head 20 moves the material tray 9 along the designated track to the designated position close to the material counting component, so that when the last material is detected by the CCD detection component 40, the blank part of the material belt is wound on the material tray 9, so that when rewinding the material belt, no manual intervention is required. During the counting process, when the material is about to end, the equipment will control the approximate amount of the remaining material through the sensor component, and then start to slow down the counting. Similarly, through the detection of the material belt by the CCD detection component 40, the specific position of the last material in the material belt and the completion of the material counting can be measured, and the quantity of the material can be accurately counted at this time. Subsequently, the installation head 20 automatically starts to rewind the material belt, and at the same time drives the material tray 9 back to the initial position until the material belt is completely rewound on the material tray 9, and the material tray 9 is manually removed, the printing component automatically prints the label, and the label is manually affixed. At this time, the equipment can upload the data to the user's MES system to complete the database update.

[0067] The material distribution process of this embodiment is briefly described below:

[0068] When using the material dividing function of this equipment, manually input the quantity of materials to be counted through the operation interface, and click the button of the material dividing function. The equipment will automatically count the materials to the specified quantity and stop. After manual cutting, the printing component will first print a label. The personnel will stick this label on the original material tray, and can put the material tray with the remaining material tape back into the warehouse, and then install a new material tray on the installation head, rewind the divided material tape onto the new material tray, and the printing component will print another label. After the new material tray is rewound, the personnel will stick the label on the new material tray and put the material tray away, and the material dividing work is completed.

[0069] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An SMT automatic material counting and sorting equipment, characterized by: The device comprises a device housing and a material-pointing mechanism arranged on the device housing. The material-pointing mechanisms are arranged on both sides of the device housing respectively. The material-pointing mechanisms comprise: A tray mounting assembly, comprising a mounting head rotatably disposed on the equipment housing for mounting the tray to be counted, and a mounting head rotation driving component for driving the mounting head to rotate; A material counting assembly, used for counting the quantity of materials, wherein the mounting head can be movably arranged on the equipment housing in the direction of the material counting assembly, and the material tray mounting assembly further comprises a mounting head moving driving component for driving the mounting head to move; A CCD component, including a CCD detection component located above the material point component for recording the first material position, the type and spacing of the materials, and the last material position on the material belt; The material belt transfer assembly includes a transfer disk rotatably arranged on the equipment housing for winding and counting the material belt, and a transfer disk rotation driving component for driving the transfer disk to rotate; A controller connected to the tray mounting assembly, the material point assembly, the CCD assembly, and the material belt transfer assembly to control their actions; A connecting track assembly, wherein the controller is connected to the connecting track assembly and controls its movement, wherein the connecting track assembly comprises a connecting track located between the material point assembly and the central turntable and capable of extending or retracting into the device housing, and a connecting track telescopic driving component driving the connecting track to extend or retract. When the connecting track is in the state of extending out of the device housing, the material belt enters the central turntable through the material point assembly and the connecting track.

2. The SMT automatic material counting and dispensing equipment according to claim 1 is characterized by: The device also includes a sensor component located below the material tray mounting component, the sensor component includes a sensor component for detecting the amount of remaining material on the material belt, and the controller is connected to the sensor component.

3. The SMT automatic material counting and dispensing equipment according to claim 1 or 2, characterized in that: The device also includes a tray separation component located below the tray installation assembly and used to prevent the trays on both sides from approaching each other when the tray moves.

4. The SMT automatic material counting and dispensing equipment according to claim 3 is characterized by: The disk dividing component is L-shaped or V-shaped.

5. The SMT automatic material counting and sorting equipment according to claim 1 is characterized by: The material counting assembly includes a feeding track, a material counting gear arranged on the feeding track for driving the material belt to move forward, an encoder connected to the material counting gear for counting the amount of materials, and a gear rotation driving component for driving the material counting gear to rotate.

6. The SMT automatic material counting and dispensing equipment according to claim 1, characterized in that: The transfer disk comprises a disk core for winding the material belt, and a material head channel extending into the inner part of the disk core is provided on the peripheral surface of the disk core. When the connecting track is extended out of the equipment housing, the material head channel of the disk core docks with the connecting track.

7. The SMT automatic material counting and sorting equipment according to claim 1 is characterized by: The CCD detection component has a first position for recording the first material position on the material tape and a second position for recording the last material position on the material tape, and the first position is located downstream of the second position. The CCD assembly also includes a CCD moving drive component for driving the CCD detection component to move between the first position and the second position.

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