Feeding equipment

Abstract

The invention discloses feeding equipment. The feeding equipment comprises a rack, the conveying device is arranged on the rack and is used for conveying the plurality of trays which are sequentially stacked from bottom to top; the lifting device is arranged on the rack and located on the conveying path of the conveying device, and the lifting device is used for driving one or more trays to move up and down; the temporary storage device is arranged on the rack and located on the lifting path of the lifting device, and the temporary storage device is used for temporary storage of one or more trays; the transferring device is arranged on the rack, located on the lifting path of the lifting device and located below the temporary storage device, and the transferring device is used for transferring one material disc; and the feeding device is arranged on the rack and corresponds to the transferring device, and the feeding device is used for receiving the material disc transferred by the transferring device, conveying the material disc to a feeding area and conveying the material disc back to the transferring device after the components on the material disc are completely taken. The feeding device can be used for feeding various components in different shapes.

Description

Technical Field

[0001] This invention relates to the field of PCBA manufacturing technology, and more specifically, to a material feeding device. Background Technology

[0002] In related technologies, multiple components on a PCBA are mainly inserted using a component insertion machine. Different components are usually fed by different feeding equipment. However, this method means that the same production line can only produce one type of PCBA. If different PCBAs need to be produced, the machine needs to be stopped and different feeding equipment needs to be changed, which is cumbersome.

[0003] Therefore, existing technologies need to be improved and developed. Summary of the Invention

[0004] The purpose of this invention is to provide a feeding device that can feed various components without stopping the machine to change them when producing different PCBAs.

[0005] The present invention provides a feeding device, comprising:

[0006] frame;

[0007] A conveying device, mounted on the frame, is used to convey multiple trays stacked sequentially from bottom to top;

[0008] A lifting device is mounted on the frame and located on the conveying path of the conveying device. The lifting device is used to drive one or more trays to move up and down.

[0009] A buffer device is mounted on the frame and located on the lifting path of the lifting device; the buffer device buffers one or more trays.

[0010] A transfer device, mounted on the frame and located on the lifting path of the lifting device, and below the buffer device, is used to transfer a tray; and

[0011] A feeding device is mounted on the frame and corresponds to the transfer device. The feeding device is used to receive the tray transferred by the transfer device and convey the tray to the feeding area, and to convey the tray back to the transfer device after all the components on the tray have been removed.

[0012] According to one embodiment of the present invention, the conveying device described above includes a conveying motor, a plurality of conveying rollers and a conveyor belt; the conveying motor is mounted on the frame; the plurality of conveying rollers are arranged in parallel on the upper frame, and one of the plurality of conveying rollers is connected to the output end of the conveying motor; the conveyor belt is wound around the plurality of conveying rollers.

[0013] According to one embodiment of the present invention, the lifting device described above includes two lifting mechanisms arranged opposite to each other. Each lifting mechanism includes a lifting drive shaft, two lifting drive wheels, two lifting driven wheels, two lifting belts, two lifting guide rails, two lifting sliders, and a lifting support plate. The lifting drive shaft is rotatably mounted on the frame. The two lifting drive wheels are arranged opposite to each other and are respectively connected to both ends of the lifting drive shaft. The two lifting driven wheels are rotatably mounted on the frame and correspond to the two lifting drive wheels respectively. The two lifting belts are respectively wound around the two lifting drive wheels and the two lifting driven wheels corresponding to them. The two lifting guide rails are vertically laid on the frame. The two lifting sliders are respectively slidably mounted on the two lifting guide rails and are respectively connected to the two lifting belts. The two ends of the lifting support plate are respectively connected to the two lifting sliders.

[0014] According to one embodiment of the present invention, the above-described buffer device includes two buffer mechanisms arranged opposite to each other. Each buffer mechanism includes a buffer mounting plate, two buffer mounting blocks, a buffer movable plate, a buffer reset spring, a buffer lifting plate, and a buffer drive cylinder. The buffer mounting plate is disposed on the frame. The two buffer mounting blocks are arranged opposite to each other on the buffer mounting plate. The buffer movable plate is movably disposed on the two buffer mounting blocks, and the buffer movable plate is provided with a plurality of inserts. One end of the buffer reset spring abuts against the buffer movable plate, and the other end of the buffer reset spring abuts against the buffer mounting plate. The buffer lifting plate is slidably disposed on the buffer mounting plate and movably abuts against the buffer movable plate. The buffer drive cylinder is disposed on the buffer mounting plate, and its output end is connected to the buffer lifting plate. The buffer drive cylinder drives the buffer lifting plate to move so that the inserts on the buffer movable plate pass through the buffer mounting plate and insert into the buffer support portion of the material tray.

[0015] According to one embodiment of the present invention, the aforementioned transfer device includes two opposing transfer support mechanisms and a transfer pushing mechanism. Each transfer support mechanism includes two transfer support mounting blocks, a transfer support movable plate, a transfer support return spring, a transfer support lifting plate, a transfer support driving cylinder, a transfer pushing cylinder, and a transfer pushing rod. The two transfer support mounting blocks are opposingly arranged on the buffer mounting plate. The transfer support movable plate is movably arranged on the two transfer support mounting blocks, and a transfer support plate is provided on the transfer support movable plate. One end of the transfer support return spring abuts against the transfer support movable plate, and the other end of the transfer support return spring abuts against the buffer mounting plate. The transfer support lifting plate is slidably disposed on the buffer mounting plate and movably abuts against the transfer support movable plate; the transfer support driving cylinder is disposed on the buffer mounting plate, and its output end is connected to the transfer support lifting plate. The transfer support driving cylinder drives the transfer support lifting plate to move so that the transfer support plate on the transfer support movable plate passes through the transfer support part of the material support tray of the buffer mounting plate; the transfer pushing mechanism includes a transfer pushing cylinder and a transfer pushing rod; the transfer pushing cylinder is rotatably disposed on the frame; one end of the transfer pushing rod is rotatably disposed on the frame, and the middle part of the transfer pushing rod is connected to the output end of the transfer pushing cylinder.

[0016] According to one embodiment of the present invention, the feeding device described above includes a conveying mechanism; the conveying mechanism is used to receive the tray transferred by the transfer device and convey the tray to the feeding area, and to convey the tray back to the transfer device after all the components on the tray have been removed. The conveying mechanism includes a conveying drive motor, a conveying drive rod, two conveying drive wheels, two conveying driven wheels, and two conveyor belts; the conveying drive motor is mounted on the frame; the conveying drive rod is rotatably mounted on the frame and connected to the output shaft of the conveying drive motor; the two conveying drive wheels are arranged opposite to each other and are respectively connected to the two ends of the conveying drive rod; the two conveying driven wheels are arranged opposite to each other on the frame and correspond to the two conveying drive wheels respectively.

[0017] According to one embodiment of the present invention, the feeding device further includes a tray fixing mechanism; after the conveying mechanism conveys the tray to the feeding area, the tray fixing mechanism fixes the tray. The tray fixing mechanism includes a front fixing baffle, a rear fixing plate, a rear fixing drive cylinder, a left fixing baffle, a right fixing plate, and a right fixing cylinder; the front fixing baffle is disposed on the frame and located in front of the feeding area; the rear fixing plate is rotatably disposed on the frame and located in rear of the feeding area; the rear fixing drive cylinder is disposed on the frame, and its output end is connected to the rear fixing plate. The rear fixing drive cylinder can drive the rear fixing plate to rotate, so that the rear fixing plate abuts against the rear end of the tray; the left fixing baffle is disposed on the frame and located on the left side of the feeding area; the right fixing plate is disposed on the frame and opposite to the left fixing baffle; the right fixing cylinder is disposed on the frame, and its output end is connected to the right fixing plate.

[0018] According to one embodiment of the present invention, the feeding device further includes a switching mechanism; the switching mechanism is located between the transfer device and the feeding area. After half of the components on the tray in the feeding area are taken, the transfer mechanism transfers the tray to the switching mechanism, and the switching mechanism drives the tray to rotate horizontally by 180°.

[0019] According to one embodiment of the present invention, the switching mechanism described above includes a switching component and a limiting component; the switching component is used to drive the material tray to rotate horizontally by 180°, and the switching component includes a lifting mounting plate, a lifting moving plate, a plurality of lifting guide rods, a lifting drive cylinder, a rotation drive motor, a rotation drive gear, a rotation driven gear, and a rotating plate; the lifting mounting plate is disposed on the frame; the lifting moving plate is located above the lifting mounting plate; one end of the plurality of lifting guide rods is connected to the lifting moving plate, and the other end of the plurality of lifting guide rods passes through the lifting mounting plate; the lifting drive cylinder is disposed on the lifting mounting plate, and its output end is connected to the lifting moving plate; the rotation drive motor... The rotating plate is mounted on the lifting moving plate; the rotating drive gear is connected to the output shaft of the rotating drive motor; the rotating driven gear is rotatably mounted on the lifting moving plate and meshes with the rotating drive gear; the rotating plate is connected to the rotating driven gear; the limiting component is used to limit the material tray when the conveying mechanism conveys the material tray in the feeding area to the switching component, the limiting component includes a limiting drive cylinder and a limiting post; the limiting drive cylinder is mounted on the frame and located on the rear side of the switching component, the extension and retraction direction of the output end of the limiting drive cylinder is the same as the lifting direction of the lifting component; the limiting post is connected to the output end of the limiting drive cylinder.

[0020] According to one embodiment of the present invention, the feeding device further includes a feeding mechanism; the feeding mechanism is used to push the empty material tray when the conveying mechanism transfers the empty material tray back to the transfer device, the feeding mechanism includes a feeding mounting plate, a feeding drive cylinder, a feeding connecting plate, a feeding push block, and a feeding return spring; the feeding mounting plate is disposed on the frame, and the feeding mounting plate has an opening; the feeding drive cylinder is disposed on the feeding mounting plate; the feeding connecting plate is connected to the output end of the feeding drive cylinder; one end of the feeding push block is rotatably disposed on the feeding mounting plate, and the other end of the feeding push block can pass through the opening from bottom to top or from top to bottom; one end of the feeding return spring abuts against the feeding connecting plate, and the other end of the feeding return spring abuts against the feeding push block.

[0021] The beneficial effects of the present invention are as follows: the feeding device of the present invention, through the cooperation of the conveying device, the lifting device, the buffer device, the transfer device and the feeding device, can realize the feeding of components of various shapes, so that there is no need to stop the machine to change when producing different PCBAs. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is a schematic diagram of the feeding device in an embodiment of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the feeding device in an embodiment of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the conveying device in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram illustrating the structure of the lifting device, buffer device, and transfer device working together in an embodiment of the present invention. Figure 1 ;

[0027] Figure 5 This is a schematic diagram illustrating the structure of the lifting device, buffer device, and transfer device working together in an embodiment of the present invention. Figure 2 ;

[0028] Figure 6 This is a schematic diagram illustrating the structure of the lifting device, buffer device, and transfer device working together in an embodiment of the present invention. Figure 3 ;

[0029] Figure 7 This is a schematic diagram of the caching mechanism in an embodiment of the present invention. Figure 1 ;

[0030] Figure 8 This is a schematic diagram of the caching mechanism in an embodiment of the present invention. Figure 2 ;

[0031] Figure 9 This is a schematic diagram of the transfer support mechanism in an embodiment of the present invention. Figure 1 ;

[0032] Figure 10 This is a schematic diagram of the transfer support mechanism in an embodiment of the present invention. Figure 2 ;

[0033] Figure 11 This is a schematic diagram of the transfer and propulsion mechanism in an embodiment of the present invention;

[0034] Figure 12 This is a schematic diagram of the feeding device in an embodiment of the present invention. Figure 1 ;

[0035] Figure 13 This is a schematic diagram of the feeding device in an embodiment of the present invention. Figure 2 ;

[0036] Figure 14 This is a schematic diagram of the switching component in an embodiment of the present invention. Figure 1 ;

[0037] Figure 15 This is a schematic diagram of the switching component in an embodiment of the present invention. Figure 2 ;

[0038] Figure 16 This is a schematic diagram of the feeding mechanism in an embodiment of the present invention. Figure 1 ;

[0039] Figure 17 This is a schematic diagram of the feeding mechanism in an embodiment of the present invention. Figure 2 . Explanation of reference numerals in the attached figures:

[0040] 1. Frame; 2. Conveying device; 21. Conveyor motor; 22. Conveyor roller; 23. Conveyor belt; 3. Lifting device; 31. Lifting mechanism; 311. Lifting drive shaft; 312. Lifting drive wheel; 313. Lifting driven wheel; 314. Lifting belt; 315. Lifting guide rail; 316. Lifting slider; 317. Lifting pallet; 4. Buffer device; 41. Buffer mechanism; 411. Buffer mounting plate; 412. Buffer mounting block; 413. Buffer movable plate; 4131. Insert block; 414. Buffer return spring; 415. Buffer lifting plate; 416. Buffer drive cylinder; 417. Buffer linear guide rail; 418. Buffer rotating roller; 5. Transfer device; 51. Transfer support mechanism; 511. Transfer support mounting block; 512. Transfer support movable plate; 5121. Transfer support plate; 513. Transfer support return spring; 514. Transfer support lifting plate; 515. Transfer support drive cylinder; 516. Transfer support linear guide rail; 517. Transfer support rotating roller; 52. Transfer pushing mechanism; 521. Transfer pushing cylinder 522. Transfer push rod; 6. Feeding device; 61. Conveying mechanism; 611. Conveying drive motor; 612. Conveying drive rod; 613. Conveying drive wheel; 614. Conveying driven wheel; 615. Conveyor belt; 616. Support plate; 62. Material tray fixing mechanism; 621. Front fixed baffle; 622. Rear fixed plate; 623. Rear fixed drive cylinder; 624. Left fixed baffle; 625. Right fixed plate; 626. Right fixed cylinder; 63. Switching mechanism; 631. Switching assembly; 6311. Lifting installation Plate; 6312, Lifting and moving plate; 6313, Lifting guide rod; 6314, Lifting drive cylinder; 6315, Rotation drive motor; 6316, Rotation drive gear; 6317, Rotation driven gear; 6318, Rotating plate; 632, Limiting assembly; 6321, Limiting drive cylinder; 6322, Limiting post; 64, Unloading mechanism; 641, Unloading mounting plate; 642, Unloading drive cylinder; 643, Unloading connecting plate; 644, Unloading push block; 645, Unloading reset spring; 646, Unloading linear guide rail. Detailed Implementation

[0041] The following drawings disclose several embodiments of the present invention. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0043] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, such a combination should be considered nonexistent and not within the scope of protection claimed by this invention.

[0044] To further understand the content, features, and effects of this invention, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0045] PCBAs typically contain multiple components, and different PCBAs contain different components. Currently, to reduce manual intervention, insertion machines are commonly used to insert components supplied by feeding equipment onto the printed circuit board, achieving automated PCBA production. However, existing feeding equipment can only feed one type of component. Therefore, automated insertion requires multiple different feeding devices to supply different components to the insertion machine. This means that the same production line can only produce one type of PCBA. If it is necessary to use the same insertion machine to produce different PCBAs, the machine must be stopped and replaced with a feeding device capable of feeding components for a different type of PCBA. This operation is very cumbersome, and multiple feeding devices require more space. Based on this, the present invention provides a feeding device.

[0046] like Figure 1 as well as Figure 2 As shown, the present invention provides a feeding device, including a frame 1, a conveying device 2, a lifting device 3, a buffer device 4, a transfer device 5, and a feeding device 6. The conveying device 2, lifting device 3, buffer device 4, transfer device 5, and feeding device 6 are all mounted on the frame 1. The lifting device 3 is located on the conveying path of the conveying device 2, the buffer device 4 and the transfer device 5 are both located on the lifting path of the lifting device 3, the transfer device 5 is located below the buffer device 4, and the feeding device 6 corresponds to the transfer device 5.

[0047] In practical applications, each tray has a lifting support, a transfer support, and a buffer support, which are arranged sequentially from bottom to top. Specifically, the lifting support is the bottom plane of the tray, the transfer support is a stepped platform on the side wall of the tray, and the buffer support is an insertion hole on the side wall of the tray.

[0048] For ease of explanation, we will take the feeding process of the feeding equipment as an example (N is a natural number greater than 1) to specifically explain the feeding process of the feeding equipment.

[0049] First, N trays containing components are stacked sequentially from bottom to top and placed on the conveying device 2. The conveying device 2 transports the N trays containing components to the lifting device 3. The lifting device 3 drives the N trays containing components to rise to correspond with the buffer device 4. The buffer device 4 buffers the remaining N-1 trays of the N trays containing components, excluding the bottom tray.

[0050] Secondly, the lifting device 3 drives one of the bottom trays to move downwards to correspond with the transfer device 5. The transfer device 5 transfers the tray to the feeding device 6, which then conveys it to the feeding area for the insertion machine to grab. After the insertion machine has taken all the components on the tray, the feeding device 6 conveys the tray back to the transfer device 5.

[0051] Next, the lifting device 3 drives one tray to move upward to the bottom of the N-1 trays containing components that are buffered by the buffer device 4. The buffer device 4 releases the buffer on the N-1 trays containing components. The lifting device 3 drives one empty tray and the N-1 trays containing components to move downward by the height of one tray. The buffer device 4 buffers the N-2 trays (excluding the bottom tray) of the N-1 trays containing components.

[0052] Then, the lifting device 3 drives an empty tray and a tray containing components on top of it to move downwards until the tray containing components aligns with the transfer device 5. The transfer device 5 then transfers the tray containing components to the feeding device 6, which conveys it to the feeding area for the insertion machine to pick up. After the insertion machine has removed all the components from the tray, the feeding device 6 returns the tray to the transfer device 5.

[0053] Next, the lifting device 3 drives two empty trays upward to the bottom of the N-2 trays containing components buffered by the buffer device 4. The buffer device 4 releases the buffer on the N-2 trays containing components. The lifting device 3 drives the two empty trays and the N-2 trays containing components downward by one tray height. The buffer device 4 buffers N-3 trays (excluding the bottom tray) of the N-2 trays containing components. The lifting device 3 drives the two empty trays and the tray containing components above them downward until they correspond to the transfer device 5. The transfer device 5 transfers the tray containing components to the feeding device 6. The feeding device 6 conveys the component to the feeding area for the insertion machine to grab. After the insertion machine has taken all the components on the tray, the feeding device 6 conveys the tray back to the transfer device 5. The above actions are repeated until the lifting device 3 drives N-1 empty trays and one tray with components on them to move down until the tray with components corresponds to the transfer device 5. At this time, there are no trays buffered at the buffer device 4. The transfer device 5 transfers the tray with components to the feeding device 6, which conveys it to the feeding area for the insertion machine to grab. After the insertion machine has taken all the components on the tray, the feeding device 6 conveys the tray back to the transfer device 5.

[0054] Finally, the lifting device 3 drives the N empty material trays to move downwards to correspond with the conveying device 2, and the conveying device 2 transports the N empty material trays to the unloading end of the conveying device 2.

[0055] Specifically, the aforementioned feeding area refers to the front end area of ​​the feeding device 6.

[0056] Understandably, when it is necessary to produce a different type of PCBA, it is only necessary to change the tray containing the components required to produce the different PCBA and change the corresponding execution software through the control system, so that there is no need to stop the machine.

[0057] It should be noted that during PCBA production, the number of components on the PCBA corresponds to the number of feeding devices for the insertion machine. For example, if there are four components on the PCBA, there will be four feeding devices for the insertion machine, each supplying one of the four components. Alternatively, multiple components can be loaded onto a single tray; for instance, if the PCBA has four components, all four components can be contained in one tray.

[0058] like Figure 3 As shown, the conveying device 2 includes a conveying motor 21, multiple conveying rollers 22, and a conveyor belt 23. The conveying motor 21 is mounted on the frame 1. The multiple conveying rollers 22 are arranged in parallel on the upper frame 1, and one of the multiple conveying rollers 22 is connected to the output end of the conveying motor 21. The conveyor belt 23 is wound around the multiple conveying rollers 22.

[0059] In practical applications, the conveyor motor 21 drives the conveyor roller 22 connected to its output end to rotate. This conveyor roller 22 drives the other conveyor rollers 22 to rotate via the conveyor belt 23, thereby realizing the conveying of multiple trays stacked sequentially from bottom to top on the conveyor belt 615. It can be understood that by controlling the conveyor motor 21 to rotate forward, the conveying device 2 can convey multiple trays containing components stacked sequentially from bottom to top to the lifting device 3. By controlling the conveyor motor 21 to rotate in reverse, the conveying device 2 can transport multiple empty trays stacked sequentially from bottom to top to the loading end of the conveying device 2 via the lifting device 3.

[0060] like Figure 4 , Figure 5 as well as Figure 6 As shown, the lifting device 3 includes two opposing lifting mechanisms 31. Each lifting mechanism 31 includes a lifting drive shaft 311, two lifting drive wheels 312, two lifting driven wheels 313, two lifting belts 314, two lifting guide rails 315, two lifting sliders 316, and a lifting support plate 317. The lifting drive shaft 311 is rotatably mounted on the frame 1. The two lifting drive wheels 312 are opposite to each other and are respectively connected to both ends of the lifting drive shaft 311. The two lifting driven wheels 313 are rotatably mounted on the frame 1 and correspond to the two lifting drive wheels 312 respectively. The two lifting belts 314 are respectively wound around the two lifting drive wheels 312 and the two corresponding lifting driven wheels 313. The two lifting guide rails 315 are vertically laid on the frame 1. The two lifting sliders 316 are slidably mounted on the two lifting guide rails 315 and are respectively connected to the two lifting belts 314. The two ends of the lifting support plate 317 are respectively connected to the two lifting sliders 316.

[0061] In practical applications, the two lifting drive shafts 311 are each connected to one lifting drive motor, or both lifting drive shafts 311 are connected to one lifting drive motor via a transmission structure. After the conveying device 2 transports multiple pallets to the corresponding lifting device 3, the lifting drive motor drives the lifting drive shafts 311 to rotate. The lifting drive shafts 311 drive the lifting drive wheel 312 to rotate. The lifting drive wheel 312 drives the lifting driven wheel 313 to rotate via the lifting belt 314. The lifting belt 314 drives the lifting pallet 317 connected to the slider to move up and down along the lifting guide rail 315, thereby causing the bottom plane of the lifting pallet 317 supporting the material tray to move up and down. Specifically, the two lifting drive shafts 311 are each connected to one lifting drive motor via a transmission structure. This not only reduces production costs but also ensures that the two lifting mechanisms 31 are synchronized.

[0062] like Figure 7 as well as Figure 8As shown, the aforementioned buffer device 4 includes two buffer mechanisms 41 arranged opposite to each other. Each buffer mechanism 41 includes a buffer mounting plate 411, two buffer mounting blocks 412, a buffer movable plate 413, a buffer reset spring 414, a buffer lifting plate 415, and a buffer drive cylinder 416. The buffer mounting plate 411 is mounted on the frame 1. The two buffer mounting blocks 412 are arranged opposite to each other on the buffer mounting plate 411. The buffer movable plate 413 is movably mounted on the two buffer mounting blocks 412, and has multiple inserts 4131. One end of the buffer reset spring 414 abuts against the buffer movable plate 413, and the other end of the buffer reset spring 414 abuts against the frame 1. The buffer lifting plate 415 is slidably mounted on the buffer mounting plate 411 and movably abuts against the buffer movable plate 413. The buffer drive cylinder 416 is mounted on the buffer mounting plate 411, and its output end is connected to the buffer lifting plate 415.

[0063] In practical applications, the lifting device 3 raises multiple trays containing components to correspond with the buffer device 4. Then, the buffer drive cylinder 416 drives the buffer lifting plate 415 to move towards the buffer movable plate 413. The first inclined surface on the buffer lifting plate 415 cooperates with the second inclined surface on the buffer movable plate 413, causing the buffer movable plate 413 to move towards the buffer mounting plate 411. This allows the insert block 4131 to pass through the buffer mounting plate 411 and insert into the insertion hole in the side wall of the tray, thus buffering the tray and the trays above it. When the insert block 4131 is inserted into the insertion hole in the side wall of the tray, the buffer reset spring 414 is compressed. When the buffer device 4 needs to release the buffer from the tray, the drive cylinder drives the buffer lifting plate 415 to move upward. The buffer reset spring 414 returns to its uncompressed state and pushes the buffer movable plate 413 away from the buffer mounting plate 411, thereby causing the insert block 4131 to disengage from the insertion hole in the side wall of the tray and releasing the buffer from the tray.

[0064] Preferably, the aforementioned buffer mechanism 41 further includes a buffer linear guide rail 417, which is mounted on the buffer mounting plate 411 and connected to the buffer lifting plate 415. This ensures that the buffer lifting plate 415 performs high-precision linear motion under the drive of the buffer drive cylinder 416.

[0065] Preferably, the aforementioned buffer mechanism 41 further includes two sets of buffer rollers, which are respectively mounted on two buffer mounting blocks 412. Each set of buffer rollers includes two buffer rotating rollers 418, which respectively abut against the upper and lower surfaces of the buffer movable plate 413. This technical solution not only limits the vertical movement of the buffer movable plate 413 but also enables precise horizontal movement of the buffer movable plate 413.

[0066] like Figure 9 , Figure 10 as well as Figure 11 As shown, the aforementioned transfer device 5 includes two opposing transfer support mechanisms 51 and a transfer pushing mechanism 52. Each transfer support mechanism 51 includes two transfer support mounting blocks 511, a transfer support movable plate 512, a transfer support return spring 513, a transfer support lifting plate 514, a transfer support drive cylinder 515, a transfer pushing cylinder 521, and a transfer pushing rod 522. The two transfer support mounting blocks 511 are opposingly mounted on the buffer mounting plate 411. The transfer support movable plate 512 is movably mounted on the two transfer support mounting blocks 511, and a transfer support plate 5121 is provided on the transfer support movable plate 5121. One end of the transfer support return spring 513 abuts against the transfer support movable plate 512, and the other end of the transfer support return spring 513 abuts against the frame 1. The transfer support lifting plate 514 is slidably mounted on the buffer mounting plate 411 and movably abuts against the transfer support movable plate 512. The transfer support drive cylinder 515 is mounted on the frame 1, and its output end is connected to the transfer support lifting plate 514. The transfer pushing mechanism 52 includes a transfer pushing cylinder 521 and a transfer pushing rod 522. The transfer pushing cylinder 521 is rotatably mounted on the frame 1, one end of the transfer pushing rod 522 is rotatably mounted on the frame 1, and the middle part of the transfer pushing rod 522 is connected to the output end of the transfer pushing cylinder 521.

[0067] In practical application, after the lifting device 3 drives the tray containing the components to correspond with the transfer device 5, the transfer support drive cylinder 515 drives the transfer support lifting plate 514 to move in the transfer direction. The third inclined surface on the transfer support lifting plate 514 cooperates with the fourth inclined surface on the transfer cup, so that the transfer support moving plate 512 moves in the direction of the buffer mounting plate 411, thereby allowing the transfer support plate 5121 to pass through the stepped platform on the side wall of the tray supported by the buffer mounting plate 411. Then, the transfer push cylinder 521 drives the transfer push rod 522 to rotate around the movement of the transfer push rod 522 as the rotation center. The transfer push rod 522 pushes the tray supported by the transfer support plate 5121 to the work position of the feeding device 6.

[0068] Preferably, the aforementioned transfer support mechanism 51 further includes a transfer support linear guide rail 516, which is mounted on the buffer mounting plate 411 and connected to the transfer support lifting plate 514. This ensures that the transfer support lifting plate 514 performs high-precision linear motion under the drive of the transfer support drive cylinder 515.

[0069] Preferably, the aforementioned transfer support mechanism 51 further includes two sets of transfer support rollers, which are respectively mounted on two transfer support mounting blocks 511. Each set of transfer support rollers includes two transfer support rotating rollers 517, which respectively abut against the upper and lower surfaces of the transfer support movable plate 512. This technical solution not only limits the vertical movement of the transfer support movable plate 512 but also enables precise horizontal movement of the transfer support movable plate 512.

[0070] like Figure 12 as well as Figure 13 As shown, the feeding device 6 includes a conveying mechanism 61. The conveying mechanism 61 receives the tray transferred by the transfer device 5, conveys the tray to the feeding area, and returns the tray to the transfer device 5 after all components on it have been removed. Specifically, the conveying mechanism 61 includes a conveying drive motor 611, a conveying drive rod 612, two conveying drive wheels 613, two conveying driven wheels 614, and two conveyor belts 615. The conveying drive motor 611 is mounted on the frame 1. The conveying drive rod 612 is rotatably mounted on the frame 1 and connected to the output shaft of the conveying drive motor 611. The two conveying drive wheels 613 are arranged opposite each other and connected to both ends of the conveying drive rod 612. The two conveying driven wheels 614 are arranged opposite each other on the frame 1 and correspond to the two conveying drive wheels 613. The two conveyor belts 615 are respectively wound around the two conveying drive wheels 613 and their corresponding two conveying driven wheels 614.

[0071] In practical applications, the conveyor drive motor 611 drives the conveyor drive rod 612 to rotate, which in turn drives two conveyor drive wheels 613 to rotate. These two drive wheels 613, via two conveyor belts 615, drive two conveyor driven wheels 614 to rotate, and the two conveyor belts 615 move the material tray. It can be understood that by controlling the forward or reverse rotation of the conveyor drive motor 611, the conveyor mechanism 61 can convey the material tray to the feeding area or return it to the transfer device 5.

[0072] Specifically, a support plate 616 is provided between the corresponding driving conveyor wheel 613 and driven conveyor wheel 614. The support plate 616 is mounted on the frame 1 and located inside the conveyor belt 615. When the two conveyor belts 615 convey the material tray, the two support plates 616 not only support the conveyor belt 615, preventing excessive sagging or deformation due to gravity or load during operation, thus maintaining the flatness and straightness of the conveyor belt 615, avoiding collision and friction with the frame 1, and extending the equipment's lifespan, but also transmit and distribute the load, evenly transferring the weight of the conveyor belt 615 to the frame 1, reducing local stress concentration, and improving the overall structural stability.

[0073] In some preferred embodiments, the feeding device 6 further includes a tray fixing mechanism 62. After the conveying mechanism 61 conveys the tray to the feeding area, the tray fixing mechanism 62 fixes the tray. Specifically, the tray fixing mechanism 62 includes a front fixing baffle 621, a rear fixing plate 622, a rear fixing drive cylinder 623, a left fixing baffle 624, a right fixing plate 625, and a right fixing cylinder 626. The front fixing baffle 621 is mounted on the frame 1 and located at the front of the feeding area. The rear fixing plate 622 is rotatably mounted on the frame 1 and located at the rear of the feeding area. The rear fixing drive cylinder 623 is mounted on the frame 1, and its output end is connected to the rear fixing plate 622. The rear fixing drive cylinder 623 can drive the rear fixing plate 622 to rotate, so that the rear fixing plate 622 abuts against the rear end of the tray. The left fixing baffle 624 is mounted on the frame 1 and located on the left side of the feeding area. The right fixed plate 625 is mounted on the frame 1 and is opposite to the left fixed baffle 624. The right fixed cylinder 626 is mounted on the frame 1, and its output end is connected to the right fixed plate 625.

[0074] In practical applications, after the conveying mechanism 61 conveys the material tray to the feeding area, the rear fixed drive cylinder 623 drives the rear fixed plate 622 to rotate, causing the rear fixed plate 622 to push the material tray forward, so that the front end of the material tray abuts against the front fixed baffle 621 and the rear end of the material tray abuts against the rear fixed plate 622, thereby fixing the material tray in the front-back direction. At the same time, the right fixed cylinder 626 drives the right fixed plate 625 to move to the left, so that the right fixed plate 625 pushes the material tray to the left, so that the left end of the material tray abuts against the left fixed baffle 624 and the right end of the material tray abuts against the right fixed plate 625, thereby fixing the material tray in the left-right direction.

[0075] In practical applications, the range of motion of the component-grabbing mechanism of the insertion machine is fixed. To avoid incompatibility between the feeding device of this application and the insertion machine, in some preferred embodiments, the feeding device 6 further includes a switching mechanism 63. The switching mechanism 63 is located between the transfer device 5 and the feeding area. After half of the components on the tray in the feeding area are picked up, the conveying mechanism 61 conveys the tray to the switching mechanism 63, and the switching mechanism 63 drives the tray to rotate horizontally by 180°.

[0076] It should be noted that the tray has two symmetrically arranged loading areas. When half of the components on the tray in the feeding area are taken, it means that all the components in one loading area are taken.

[0077] like Figure 13 , Figure 14 as well as Figure 15As shown, the switching mechanism 63 includes a switching component 631 and a limiting component 632. The switching component 631 drives the material tray to rotate horizontally by 180°. The limiting component 632 limits the material tray when the conveying mechanism 61 conveys the material tray in the feeding area to the switching component 631. Specifically, the switching component 631 includes a lifting mounting plate 6311, a lifting moving plate 6312, multiple lifting guide rods 6313, a lifting drive cylinder 6314, a rotation drive motor 6315, a rotation drive gear 6316, a rotation driven gear 6317, and a rotating plate 6318. The lifting mounting plate 6311 is mounted on the frame 1. The lifting moving plate 6312 is located above the lifting mounting plate 6311, one end of the multiple lifting guide rods 6313 is connected to the lifting moving plate 6312, and the other end of the multiple lifting guide rods 6313 passes through the lifting mounting plate 6311. A lifting drive cylinder 6314 is mounted on a lifting mounting plate 6311, and its output end is connected to a lifting moving plate 6312. A rotation drive motor 6315 is mounted on the lifting moving plate 6312. A rotation drive gear 6316 is connected to the output shaft of the rotation drive motor 6315. A rotation driven gear 6317 is rotatably mounted on the lifting moving plate 6312 and meshes with the rotation drive gear 6316. A rotating plate 6318 is connected to the rotation driven gear 6317. The limiting assembly 632 includes a limiting drive cylinder 6321 and a limiting post 6322. The limiting drive cylinder 6321 is mounted on the frame 1 and located behind the switching assembly 631. The extension and retraction direction of the output end of the limiting drive cylinder 6321 is the same as the lifting direction of the lifting assembly. The limiting post 6322 is connected to the output end of the limiting drive cylinder 6321.

[0078] In specific applications, when the conveying mechanism 61 conveys the material tray from the feeding area to the switching mechanism 63, the limit drive cylinder 6321 drives the limit post 6322 to extend, so that the limit post 6322 can limit the material tray, making the material tray precisely correspond to the switching component 631. Then, the lifting drive cylinder 6314 drives the lifting moving plate 6312 to move upward along multiple lifting guide rods 6313. The lifting moving plate 6312 drives the rotating drive gear 6316, the rotating driven gear 6317, and the rotating plate 6318 to move upward. The rotating plate 6318 drives the material tray to move upward. After the lifting moving plate 6312 moves upward into position, the rotating drive motor 6315 drives the rotating drive gear 6316 to rotate. 316 drives the driven gear 6317 to rotate, which in turn drives the rotating plate 6318 to rotate. The rotating plate 6318 rotates the material tray 180°, so that the half of the material tray with components already picked up by the connector becomes the rear end, and the half with components not yet picked up by the connector becomes the front end. Then, the lifting drive cylinder 6314 drives the lifting moving plate 6312 to move downward along multiple lifting guide rods 6313. The lifting moving plate 6312 drives the rotating drive gear 6316, the rotating driven gear 6317, and the rotating plate 6318 to move downward. The rotating plate 6318 drives the material tray to move downward. After the lifting moving plate 6312 moves downward into place, the conveying mechanism 61 conveys the material tray back to the feeding area.

[0079] like Figure 16 and Figure 17 As shown, the feeding device 6 also includes a discharging mechanism 64. The discharging mechanism 64 is used to push the empty material tray when the conveying mechanism 61 transfers the empty tray back to the transfer device 5. Specifically, the discharging mechanism 64 includes a discharging mounting plate 641, a discharging drive cylinder 642, a discharging connecting plate 643, a discharging push block 644, and a discharging return spring 645. The discharging mounting plate 641 is mounted on the frame 1 and has an opening. The discharging drive cylinder 642 is mounted on the discharging mounting plate 641. The discharging connecting plate 643 is connected to the output end of the discharging drive cylinder 642. One end of the discharging push block 644 is rotatably mounted on the discharging mounting plate 641. One end of the discharging return spring 645 abuts against the discharging connecting plate 643, and the other end of the discharging return spring 645 abuts against the discharging push block 644. Preferably, the discharging drive cylinder 642 is a rodless cylinder.

[0080] In practical applications, under the default state, the feeding pusher 644 is entirely located below the feeding mounting plate 641. At this time, the feeding reset spring 645 is compressed, causing the other end of the feeding pusher 644 to abut against the lower surface of the feeding mounting plate 641. When the conveying mechanism 61 transfers the empty material tray from the feeding area back to the transfer device 5, the conveying mechanism 61 first transfers the empty material tray to the feeding mechanism 64. Then, the feeding drive cylinder 642 drives the feeding connecting plate 643 to move towards the transfer device 5. The feeding connecting plate 643 drives the feeding pusher 644 to move towards the transfer device 5. When the other end of the feeding pusher 644 corresponds to the opening, the other end of the feeding pusher 644 is at the bottom. Under the action of the material return spring 645, the material passes through the opening from bottom to top. As the material feeding connecting plate 643 continues to move, the other end of the material feeding push block 644 pushes the material tray to the station of the transfer device 5. Then, the material feeding drive cylinder 642 drives the material feeding connecting plate 643 to move towards the feeding area. The material feeding connecting plate 643 drives the material feeding push block 644 to move towards the feeding area. As the material feeding connecting plate 643 moves, the other end of the material feeding push block 644 passes through the opening from top to bottom and gradually abuts against the material feeding mounting plate 641. Under the action of the material feeding mounting plate 641, the material feeding push block 644 and the material feeding return spring 645 both return to their default state, waiting for the next material feeding to perform the corresponding action.

[0081] In order to ensure that the material feeding pusher 644 can smoothly switch back to the default state after pushing the material tray to the station of the transfer device 5, the material feeding pusher 644 is provided with a fifth inclined surface, and the material feeding mounting plate 641 is provided with a sixth inclined surface that matches the fifth inclined surface. The fifth and sixth inclined surfaces cooperate with each other to ensure that the material feeding pusher 644 can smoothly switch back to the default state.

[0082] Preferably, the above-mentioned unloading mechanism 64 further includes an unloading linear guide rail 646, which is disposed on the unloading mounting plate 641 and connected to the unloading connecting plate 643. This ensures that the unloading connecting plate 643 performs high-precision linear motion under the drive of the unloading drive cylinder 642, thereby ensuring that the unloading push block 644 performs high-precision linear motion.

[0083] In practical applications, the aforementioned conveying device 2, lifting device 3, buffer device 4, transfer device 5, and feeding device 6 are all electrically connected to the control system of the feeding equipment. The control system of the feeding equipment controls the actions of the conveying device 2, lifting device 3, buffer device 4, transfer device 5, and feeding device 6 to achieve the effect of automated control of the feeding equipment. Of course, the control system of the feeding equipment can be any of an industrial computer, PLC, or microcontroller, which will not be elaborated here.

[0084] In practical applications, the frame 1 is equipped with multiple sensors, which correspond to the conveying device 2, lifting device 3, buffer device 4, transfer device 5, and feeding device 6. These sensors detect whether each device has completed its designated movement. If so, the sensor sends a feedback signal to the control system of the feeding equipment. The control system then stops the affected device and controls other devices to perform corresponding actions, ensuring the accuracy of the feeding equipment. For example, if a sensor detects that the conveying device 2 has delivered multiple trays to the correct position, it sends a feedback signal to the control system, which then stops the conveying device 2 and activates the lifting device 3. Specifically, the sensors can be photoelectric switches.

[0085] In summary, in one or more embodiments of the present invention, the feeding device of the present invention, through the cooperation of a conveying device, a lifting device, a buffer device, a transfer device and a feeding device, can feed components of various shapes, so that no machine stoppage is required to change them when producing different PCBAs.

[0086] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A feeding device, characterized in that, include: Rack (1); A conveying device (2) is installed on the frame (1) for conveying multiple trays stacked sequentially from bottom to top; A lifting device (3) is installed on the frame (1) and located on the conveying path of the conveying device (2). The lifting device (3) is used to drive one or more trays to move up and down. A buffer device (4) is installed on the frame (1) and located on the lifting path of the lifting device (3). The buffer device (4) buffers one or more trays. The transfer device (5) is set on the frame (1) and located on the lifting path of the lifting device (3) and below the buffer device (4). The transfer device (5) is used to transfer a tray. as well as A feeding device (6) is installed on the frame (1) and corresponds to the transfer device (5). The feeding device (6) is used to receive the tray transferred by the transfer device (5) and transfer the tray to the feeding area, and after the components on the tray are removed, transfer the tray back to the transfer device (5).

2. The feeding device according to claim 1, characterized in that, The conveying device (2) includes a conveying motor (21), multiple conveying rollers (22) and a conveyor belt (23); the conveying motor (21) is mounted on the frame (1); the multiple conveying rollers (22) are arranged in parallel on the upper frame (1), and one of the multiple conveying rollers (22) is connected to the output end of the conveying motor (21); the conveyor belt (23) is wound around the multiple conveying rollers (22).

3. The feeding device according to claim 1, characterized in that, The lifting device (3) includes two opposing lifting mechanisms (31), each of which includes a lifting drive shaft (311), two lifting drive wheels (312), two lifting driven wheels (313), two lifting belts (314), two lifting guide rails (315), two lifting sliders (316), and a lifting support plate (317). The lifting drive shaft (311) is rotatably mounted on the frame (1). The two lifting drive wheels (312) are opposite to each other and are respectively connected to both ends of the lifting drive shaft (311). The two lifting driven wheels (314) are respectively connected to both ends of the lifting drive shaft (315). 3) All are rotatably mounted on the frame (1) and correspond to the two lifting drive wheels (312) respectively; the two lifting belts (314) are respectively wound around the two lifting drive wheels (312) and the two lifting driven wheels (313) corresponding to them; the two lifting guide rails (315) are vertically laid on the frame (1); the two lifting sliders (316) are respectively slidably mounted on the two lifting guide rails (315) and respectively connected to the two lifting belts (314); the two ends of the lifting plate (317) are respectively connected to the two lifting sliders (316).

4. The feeding device according to claim 1, characterized in that, The buffer device (4) includes two buffer mechanisms (41) arranged opposite to each other. Each buffer mechanism (41) includes a buffer mounting plate (411), two buffer mounting blocks (412), a buffer movable plate (413), a buffer reset spring (414), a buffer lifting plate (415), and a buffer drive cylinder (416). The buffer mounting plate (411) is mounted on the frame (1). The two buffer mounting blocks (412) are arranged opposite to each other on the buffer mounting plate (411). The buffer movable plate (413) is movably mounted on the two buffer mounting blocks (412), and the buffer movable plate (413) is provided with a plurality of inserts (4131). The buffer reset spring... One end of the spring (414) abuts against the buffer movable plate (413), and the other end of the buffer reset spring (414) abuts against the buffer mounting plate (411); the buffer lifting plate (415) is slidably disposed on the buffer mounting plate (411) and moves against the buffer movable plate (413); the buffer drive cylinder (416) is disposed on the buffer mounting plate (411), and its output end is connected to the buffer lifting plate (415). The buffer drive cylinder (416) drives the buffer lifting plate (415) to move so that the insert (4131) on the buffer movable plate (413) passes through the buffer mounting plate (411) and inserts into the buffer support of the material tray.

5. The feeding device according to claim 4, characterized in that, The transfer device (5) includes two opposing transfer support mechanisms (51) and a transfer pushing mechanism (52). Each transfer support mechanism (51) includes two transfer support mounting blocks (511), a transfer support movable plate (512), a transfer support return spring (513), a transfer support lifting plate (514), a transfer support driving cylinder (515), a transfer pushing cylinder (521), and a transfer pushing rod (522). The two transfer support mounting blocks (511) are oppositely arranged on the buffer mounting plate (411). The transfer support movable plate (512) is movably arranged on the two transfer support mounting blocks (511), and a transfer support plate (5121) is provided on the transfer support movable plate (5121). One end of the transfer support return spring (513) abuts against the transfer support movable plate (512), and the other end of the transfer support return spring (513) abuts against the buffer mounting plate (411). The transfer support lifting plate (514) is slidably disposed on the buffer mounting plate (411) and movably abuts against the transfer support movable plate (512); the transfer support driving cylinder (515) is disposed on the buffer mounting plate (411), and its output end is connected to the transfer support lifting plate (514). The transfer support driving cylinder (515) drives the transfer support lifting plate (514) to move so that the transfer support plate (5121) on the transfer support movable plate (512) passes through the transfer support part of the buffer mounting plate (411) supporting the material tray; the transfer pushing mechanism (52) includes a transfer pushing cylinder (521) and a transfer pushing rod (522); the transfer pushing cylinder (521) is rotatably disposed on the frame (1); one end of the transfer pushing rod (522) is rotatably disposed on the frame (1), and the middle part of the transfer pushing rod (522) is connected to the output end of the transfer pushing cylinder (521).

6. The feeding device according to claim 1, characterized in that, The feeding device (6) includes a conveying mechanism (61); the conveying mechanism (61) is used to receive the tray transferred by the transfer device (5) and convey the tray to the feeding area, and to convey the tray back to the transfer device (5) after the components on the tray are removed. The conveying mechanism (61) includes a conveying drive motor (611), a conveying drive rod (612), two conveying drive wheels (613), two conveying driven wheels (614) and two conveyor belts (615); the conveying drive motor (611) is mounted on the frame (1); the conveying drive rod (612) is rotatably mounted on the frame (1) and connected to the output shaft of the conveying drive motor (611); the two conveying drive wheels (613) are arranged opposite to each other and are respectively connected to the two ends of the conveying drive rod (612); the two conveying driven wheels (614) are arranged opposite to each other on the frame (1) and are respectively corresponding to the two conveying drive wheels (613).

7. The feeding device according to claim 6, characterized in that, The feeding device (6) also includes a tray fixing mechanism (62); after the conveying mechanism (61) conveys the tray to the feeding area, the tray fixing mechanism (62) fixes the tray. The tray fixing mechanism (62) includes a front fixing baffle (621), a rear fixing plate (622), a rear fixing drive cylinder (623), a left fixing baffle (624), a right fixing plate (625), and a right fixing cylinder (626); the front fixing baffle (621) is mounted on the frame (1) and located in front of the feeding area; the rear fixing plate (622) is rotatably mounted on the frame (1) and located behind the feeding area. The rear fixed drive cylinder (623) is mounted on the frame (1), and its output end is connected to the rear fixed plate (622). The rear fixed drive cylinder (623) can drive the rear fixed plate (622) to rotate, so that the rear fixed plate (622) abuts against the rear end of the material tray. The left fixed baffle (624) is mounted on the frame (1) and located on the left side of the feeding area. The right fixed plate (625) is mounted on the frame (1) and is opposite to the left fixed baffle (624). The right fixed cylinder (626) is mounted on the frame (1) and its output end is connected to the right fixed plate (625).

8. The feeding device according to claim 6 or 7, characterized in that, The feeding device (6) also includes a switching mechanism (63); the switching mechanism (63) is located between the transfer device (5) and the feeding area. After half of the components on the tray in the feeding area are taken, the conveying mechanism (61) conveys the tray to the switching mechanism (63), and the switching mechanism (63) drives the tray to rotate horizontally by 180°.

9. The feeding device according to claim 8, characterized in that, The switching mechanism (63) includes a switching component (631) and a limiting component (632); the switching component (631) is used to drive the material tray to rotate horizontally by 180°, and the switching component (631) includes a lifting mounting plate (6311), a lifting moving plate (6312), multiple lifting guide rods (6313), a lifting drive cylinder (6314), a rotation drive motor (6315), a rotation drive gear (6316), a rotation driven gear (6317), and a rotating plate (6318); the lifting mounting plate (6311) is used to drive the material tray to rotate horizontally by 180°, and the limiting component (6312) includes a lifting mounting plate (6311), a lifting moving plate (6312), multiple lifting guide rods (6313), a lifting drive cylinder (6314), a rotation drive motor (6315), a rotation drive gear (6316), a rotation driven gear (6317), and a rotating plate (6318); the lifting mounting plate (6311) is used to drive the material tray to rotate horizontally by 180°, and the limiting component (632) includes a lifting mounting plate (6311), a lifting moving plate (6312), a lifting moving plate (6313), a lifting moving plate (6314), a lifting drive cylinder (6315), a rotation drive motor (6316), a rotation drive gear (6317), and a rotating plate (6318); the lifting mounting plate (6311) is used to drive the material tray to rotate horizontally by 180°, and the limiting component (6312) includes a lifting mounting plate (6311), a lifting moving plate (6312), a lifting moving plate (6313), a lifting moving plate (6314), a lifting moving plate (6315), a lifting moving plate (6316), a lifting moving plate (6317), a lifting moving plate (6318), a lifting moving plate (6312), a lifting The mounting plate (6311) is mounted on the frame (1); the lifting moving plate (6312) is located above the lifting mounting plate (6311); one end of a plurality of lifting guide rods (6313) is connected to the lifting moving plate (6312), and the other end of the plurality of lifting guide rods (6313) passes through the lifting mounting plate (6311); the lifting drive cylinder (6314) is mounted on the lifting mounting plate (6311), and its output end is connected to the lifting moving plate (6312); the rotation drive The motor (6315) is mounted on the lifting moving plate (6312); the rotating drive gear (6316) is connected to the output shaft of the rotating drive motor (6315); the rotating driven gear (6317) is rotatably mounted on the lifting moving plate (6312) and meshes with the rotating drive gear (6316); the rotating plate (6318) is connected to the rotating driven gear (6317); the limiting component (632) is used to position the conveying mechanism (61) in the feeding area. When the material tray is conveyed to the switching component (631), the material tray is limited. The limiting component (632) includes a limiting drive cylinder (6321) and a limiting post (6322). The limiting drive cylinder (6321) is mounted on the frame (1) and located on the rear side of the switching component (631). The extension and retraction direction of the output end of the limiting drive cylinder (6321) is the same as the lifting direction of the lifting component. The limiting post (6322) is connected to the output end of the limiting drive cylinder (6321).

10. The feeding device according to claim 6, characterized in that, The feeding device (6) further includes a feeding mechanism (64); the feeding mechanism (64) is used to push the empty material tray when the conveying mechanism (61) transfers the empty material tray back to the transfer device (5). The feeding mechanism (64) includes a feeding mounting plate (641), a feeding drive cylinder (642), a feeding connecting plate (643), a feeding push block (644), and a feeding reset spring (645); the feeding mounting plate (641) is mounted on the frame (1), and the feeding mounting plate (641) has an opening; the feeding drive cylinder... The cylinder (642) is mounted on the unloading mounting plate (641); the unloading connecting plate (643) is connected to the output end of the unloading drive cylinder (642); one end of the unloading push block (644) is rotatably mounted on the unloading mounting plate (641), and the other end of the unloading push block (644) can pass through the opening from bottom to top or from top to bottom; one end of the unloading return spring (645) abuts against the unloading connecting plate (643), and the other end of the unloading return spring (645) abuts against the unloading push block (644).

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