Rotary positioning and feeding mechanism

Abstract

The application relates to the technical field of electronic cigarette production, and particularly discloses a rotary positioning and feeding mechanism, which comprises a feeding mechanism, a feeding transfer mechanism, a rotary positioning mechanism, a discharging transfer mechanism and a discharging mechanism; the feeding mechanism is used for providing workpieces; the feeding transfer mechanism is used for taking out the workpieces from the feeding mechanism and placing the workpieces into the rotary positioning mechanism; the rotary positioning mechanism comprises a plurality of carriers used for placing the workpieces and rotary motors used for driving the carriers to rotate; and the discharging transfer mechanism is used for placing the workpieces into the discharging mechanism. The rotary positioning and feeding mechanism is used for realizing the mechanized operation of workpiece angle correction, thereby reducing the labor cost and improving the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of electronic cigarette manufacturing technology, and in particular to a rotary positioning and feeding mechanism. Background Technology

[0002] Electronic cigarettes have an internal reservoir for storing e-liquid. See also Figure 1 Oil cup 1 is cylindrical in shape, but its bottom has a protrusion 101. Before proceeding with subsequent automated production operations, it is necessary to ensure that the protrusions 101 of each oil cup 1 face the same direction (e.g., forward). The current practice is as follows:

[0003] ①See Figure 2 and Figure 3 Several carriers 401 are manufactured. The top of the carrier 401 is provided with a slot 4011 for inserting an oil cup 1. The bottom of the slot is provided with an annular boss 4012. The annular boss 4012 is provided with a positioning notch 4013 that matches the protrusion 101.

[0004] ② Manually insert the oil cup 1 into the placement slot 4011 and make the protrusion 101 of the oil cup 1 engage with the positioning notch 4013. This achieves the relative positioning between the carrier 401 and the oil cup 1. Then, each carrier 401 is sent to the downstream process, thereby ensuring that each oil cup 1 can enter the downstream automated assembly equipment at the same placement angle.

[0005] The aforementioned oil cup feeding method heavily relies on manual labor, resulting in low production efficiency. Therefore, it is necessary to develop a feeding mechanism to automate tasks such as workpiece angle correction (e.g., oil cups), thereby reducing labor costs and improving production efficiency.

[0006] The information disclosed in this background section is included only to enhance the understanding of the context of this disclosure, and therefore may contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] One objective of this invention is to provide a rotary positioning and feeding mechanism for mechanizing workpiece angle correction, thereby reducing labor costs and improving production efficiency.

[0008] To achieve the above objectives, the present invention provides a rotary positioning and feeding mechanism, including a feeding mechanism, a feeding and transferring mechanism, a rotary positioning mechanism, a discharging and transferring mechanism, and a discharging mechanism;

[0009] The feeding mechanism is used to provide workpieces;

[0010] The loading and transfer mechanism is used to remove the workpiece from the feeding mechanism and place it into the rotary positioning mechanism;

[0011] The rotary positioning mechanism includes a plurality of carriers for placing the workpiece and a rotary motor for driving each of the carriers to rotate.

[0012] The material transfer mechanism is used to place the workpiece into the material discharge mechanism.

[0013] Optionally, the feeding mechanism includes two spaced-apart feeding conveyor belts, a feeding lifting assembly for storing stacked full-loaded trays, and a tray-receiving lifting assembly for storing stacked empty trays.

[0014] Optionally, both the feeding lifting assembly and the collecting lifting assembly include:

[0015] A plurality of limiting columns, each of the limiting columns being fixed above the two feeding conveyor belts, are used to limit the horizontal position of the material tray;

[0016] A lifting platform, located between the two feeding conveyor belts;

[0017] Two opposing side clamping mechanisms are positioned above the two feeding conveyor belts.

[0018] Optionally, the feeding and transfer mechanism includes:

[0019] The feeding and transferring clamping mechanism includes two oppositely arranged feeding and transferring clamping plates and a feeding and transferring gripper cylinder that drives the two feeding and transferring clamping plates to move closer or further apart from each other.

[0020] Several pressure plates, each of which is located above the two feeding and transfer clamps;

[0021] A pressure cylinder is provided, the drive end of which is connected to each of the pressure plates and is used to drive each of the pressure plates to press down on the corresponding workpiece.

[0022] Optionally, the feeding and transfer mechanism further includes:

[0023] A feeding and transferring drive mechanism is provided, the drive end of which is connected to the feeding and transferring clamping mechanism and the pressing cylinder, and is used to drive the feeding and transferring clamping mechanism and the pressing cylinder to reciprocate linearly between the feeding mechanism and the rotary positioning mechanism.

[0024] Optionally, the rotary positioning mechanism further includes:

[0025] Correct the crossbeam plate;

[0026] A plurality of longitudinal rotating shafts are provided in one-to-one correspondence with each of the aforementioned vehicles. The upper end of each longitudinal rotating shaft is fixedly connected to the bottom of the corresponding vehicle, the middle part is rotatably connected to the correction beam plate, and the lower end is drivenly connected to the rotary motor.

[0027] Optionally, the rotary motor drives each of the longitudinal shafts to rotate synchronously via a transmission belt.

[0028] Optionally, a recycling box for storing defective products is also provided on the side of the correction beam plate.

[0029] Optionally, the feeding and transferring mechanism includes:

[0030] Material transfer of crossbeam plate;

[0031] Several floating blocks, each of which is slidably connected to the unloading and transfer beam plate;

[0032] A compression spring is used to drive the floating block to slide downward relative to the unloading transfer beam plate;

[0033] A plurality of unloading and transfer gripper assemblies are provided in one-to-one correspondence with each of the floating blocks, and the unloading and transfer gripper assemblies are installed on the bottom of the corresponding floating block;

[0034] A plurality of photoelectric sensors are provided in one-to-one correspondence with each of the floating blocks. The photoelectric sensors are located above the corresponding floating blocks and are used to detect the vertical position of the floating blocks.

[0035] The material feeding and transfer drive mechanism has its drive end connected to the material feeding and transfer crossbeam plate, which drives the material feeding and transfer crossbeam plate to reciprocate between the rotary positioning mechanism and the discharge mechanism.

[0036] Optionally, the unloading and transfer gripper assembly is connected to an L-shaped connecting plate, and the L-shaped connecting plate is provided with downwardly protruding pressure pins.

[0037] The beneficial effects of the present invention are as follows: a rotary positioning feeding mechanism is provided, wherein after the feeding mechanism provides the workpiece, the feeding transfer mechanism takes the workpiece out from the feeding mechanism and puts it into the rotary positioning mechanism; then, the rotary positioning mechanism rotates the workpiece to a specific angle to meet subsequent production needs; the unloading transfer mechanism can then put the workpiece into the unloading mechanism, which sends it to the downstream automated assembly equipment.

[0038] Therefore, the material transfer drive mechanism can work with the rotary positioning mechanism to correct the angle of each workpiece, so that each workpiece is conveyed downstream at the same angle, thereby completing the mechanized angle correction operation, thereby reducing labor costs and improving production efficiency. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 A schematic diagram of the bottom structure of the oil cup provided by the present invention;

[0041] Figure 2 This is a schematic diagram of the structure after the oil cup is placed into the carrier, as provided by the present invention;

[0042] Figure 3 This is a schematic diagram of the structure of the vehicle provided by the present invention;

[0043] Figure 4 This is a schematic diagram of the rotary positioning and feeding mechanism provided in the embodiment;

[0044] Figure 5 A schematic diagram of the material feeding lifting assembly provided in the embodiment;

[0045] Figure 6 This is a schematic diagram of the feeding, transferring, and clamping mechanism provided in the embodiment.

[0046] Figure 7 This is a schematic diagram of the top surface of the rotary positioning mechanism provided in the embodiment;

[0047] Figure 8 This is a schematic diagram of the bottom surface of the rotary positioning mechanism provided in the embodiment;

[0048] Figure 9 A schematic diagram of the cross-section of the rotary positioning mechanism provided in the embodiment;

[0049] Figure 10 A schematic diagram of the material transfer mechanism provided in the embodiment;

[0050] Figure 11 This is a schematic diagram of the pressure needle provided in the embodiment.

[0051] In the picture:

[0052] 1. Oil cup; 101. Protrusion;

[0053] 2. Feeding mechanism; 201. Feeding conveyor belt; 202a. Feeding lifting assembly; 202b. Rewinding lifting assembly; 2021. Limiting column; 2022. Lifting platform; 2023. Side clamping mechanism;

[0054] 3. Feeding and transferring mechanism; 301. Feeding and transferring clamping mechanism; 3011. Feeding and transferring clamping plate; 3012. Feeding and transferring gripper cylinder; 302. Pressure plate; 303. Pressing cylinder; 304. Feeding and transferring drive mechanism;

[0055] 4. Rotary positioning mechanism; 401. Carrier; 4011. Part slot; 4012. Annular boss; 4013. Positioning notch; 402. Rotary motor; 403. Correction beam plate; 404. Longitudinal rotating shaft; 405. Drive belt;

[0056] 5. Material transfer mechanism; 501. Material transfer crossbeam plate; 502. Floating block; 503. Compression spring; 504. Material transfer gripper assembly; 505. Photoelectric sensor; 506. L-shaped connecting plate; 507. Pressure pin; 508. Material transfer drive mechanism;

[0057] 6. Discharge mechanism;

[0058] 7. Recycling box;

[0059] 8. Material replenishment rack. Detailed Implementation

[0060] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0061] In the description of this invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component present simultaneously. When a component is considered to be "set" on another component, it can be directly set on the other component or there may be an intermediate component present simultaneously.

[0062] Furthermore, terms such as “long,” “short,” “inner,” and “outer” indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the purpose of describing the present invention and are not intended to indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientational configuration. Therefore, they should not be construed as limitations of the present invention.

[0063] The present invention will now be described in detail with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are included within the scope of protection of the present invention.

[0064] This invention provides a rotary positioning and feeding mechanism, which is suitable for applications that rotate and position workpieces such as oil cups before supplying them downstream. It can realize mechanized workpiece angle correction, thereby reducing labor costs and improving production efficiency.

[0065] See Figure 4 In this embodiment, the rotary positioning and feeding mechanism includes a feeding mechanism 2, a feeding transfer mechanism 3, a rotary positioning mechanism 4, a discharging transfer mechanism 5, and a discharging mechanism 6.

[0066] After the feeding mechanism 2 provides the workpiece, the loading and transfer mechanism 3 takes the workpiece out of the feeding mechanism 2 and puts it into the rotary positioning mechanism 4; then, the rotary positioning mechanism 4 rotates the workpiece to a specific angle to meet subsequent production needs; the unloading and transfer mechanism 5 then puts the workpiece into the unloading mechanism 6, which sends it to the downstream automated assembly equipment.

[0067] It should be noted that the oil cup 1 shown in the background art is only one optional structural form among the many workpieces provided in this embodiment. The rotary positioning and feeding mechanism provided in this embodiment can also be used for other products. The key feature of the rotary positioning and feeding mechanism provided in this embodiment is that it can rotate the workpiece to a specific angle before conveying it downstream.

[0068] See Figure 5 In this embodiment, the feeding mechanism 2 includes two spaced-apart feeding conveyor belts 201, a feeding lifting assembly 202a for storing stacked full-loaded trays, and a tray-receiving lifting assembly 202b for storing stacked empty trays.

[0069] The feeding lifting assembly 202a and the receiving lifting assembly 202b are both common lifting feeding structures, specifically including several limiting columns 2021, a lifting platform 2022, and two oppositely arranged side clamping mechanisms 2023. Each limiting column 2021 is fixed above the two feeding conveyor belts 201 to limit the horizontal position of the material tray; the lifting platform 2022 is located between the two feeding conveyor belts 201; and the two side clamping mechanisms 2023 are located above the two feeding conveyor belts 201.

[0070] The specific working principle of the lifting feeding structure is existing technology and will not be described in detail in this embodiment.

[0071] See Figure 6 The feeding and transfer mechanism 3 includes a feeding and transfer clamping mechanism 301, several pressure plates 302, a pressing cylinder 303, and a feeding and transfer drive mechanism 304.

[0072] The loading and transfer clamping mechanism 301 includes two opposing loading and transfer clamping plates 3011 and a loading and transfer gripper cylinder 3012 that drives the two loading and transfer clamping plates 3011 to move closer or further apart. Each pressure plate 302 is located above the two loading and transfer clamping plates 3011. The driving end of the pressing cylinder 303 is connected to each pressure plate 302 and is used to drive each pressure plate 302 to press down on the corresponding workpiece. The driving end of the loading and transfer driving mechanism 304 is connected to the loading and transfer clamping mechanism 301 and the pressing cylinder 303 and is used to drive the loading and transfer clamping mechanism 301 and the pressing cylinder 303 to reciprocate linearly between the feeding mechanism 2 and the rotary positioning mechanism 4.

[0073] See Figures 7-9 The rotary positioning mechanism 4 includes several carriers 401 for placing the workpieces, a rotary motor 402 for driving each carrier 401 to rotate, a straightening beam 403, several longitudinal rotating shafts 404 corresponding to each carrier 401, and a transmission belt 405 connecting the rotary motor 402 and each longitudinal rotating shaft 404. The upper end of each longitudinal rotating shaft 404 is fixedly connected to the bottom of the corresponding carrier 401, the middle part is rotatably connected to the straightening beam 403, and the lower end is connected to the rotary motor 402 via the transmission belt. When the rotary motor 402 is working, all the longitudinal rotating shafts 404 will rotate synchronously.

[0074] Optionally, a recycling box 7 for storing defective products is also provided on the side of the correction beam plate 403;

[0075] Accordingly, a replenishment rack 8 for placing qualified products is also provided next to the recycling box 7.

[0076] See Figure 10 and Figure 11 The material transfer mechanism 5 includes a material transfer crossbeam 501, a plurality of floating blocks 502, a compression spring 503, a plurality of material transfer gripper assemblies 504 corresponding to each of the floating blocks 502, a plurality of photoelectric sensors 505 corresponding to each of the floating blocks 502, an L-shaped connecting plate 506, a pressure pin 507, and a material transfer drive mechanism 508.

[0077] Each of the floating blocks 502 is slidably connected to the unloading transfer beam 501. The compression spring 503 drives the floating block 502 to slide downward relative to the unloading transfer beam 501. The unloading transfer gripper assembly 504 is installed at the bottom of the corresponding floating block 502. The photoelectric sensor 505 is located above the corresponding floating block 502 and is used to detect the vertical position of the floating block 502. The L-shaped connecting plate 506 is fixedly mounted on the unloading transfer gripper assembly 504. The pressure pin 507 is mounted on the L-shaped connecting plate 506 and protrudes downward. The driving end of the unloading transfer drive mechanism 508 is connected to the unloading transfer beam 501, driving the unloading transfer beam 501 to reciprocate between the rotary positioning mechanism 4 and the discharge mechanism 6.

[0078] In this embodiment, the discharge mechanism 6 includes a discharge tray (not shown in the figure) and a discharge conveyor belt for conveying the discharge tray.

[0079] The rotary positioning and feeding mechanism provided in this embodiment works as follows:

[0080] S10: The initial state is as follows:

[0081] ① Several full-load trays loaded with workpieces are stacked at the feeding lifting assembly 202a. Specifically, the lower end of the workpiece is inserted into the tray, and the upper end of the workpiece is above the tray, so that it can be clamped in step S30.

[0082] ② Several workpieces that have passed inspection are placed on the feeding rack 8.

[0083] S20: The feeding lifting assembly 202a places the full-loaded material tray onto the feeding conveyor belt 201 layer by layer from bottom to top. The feeding conveyor belt 201 transports the full-loaded material tray to a position close to the feeding transfer mechanism 3 so that the feeding transfer mechanism 3 can pick up the workpiece.

[0084] After all the workpieces have been removed, the loading conveyor belt 201 sends the empty material tray to the receiving lifting assembly 202b, which then lifts and stores the empty material tray layer by layer.

[0085] S30: The material transfer mechanism clamps each of the workpieces; specifically:

[0086] S301: The loading transfer gripper cylinder 3012 drives the two loading transfer plates 3011 to separate;

[0087] S302: The loading and transfer drive mechanism 304 drives the two loading and transfer clamps 3011 to move to the side position of the upper end of the workpiece;

[0088] S303: The loading and transfer gripper cylinder 3012 drives the two loading and transfer plates 3011 to move closer to each other and clamp the upper ends of each workpiece;

[0089] It should be noted that at this time, the top surface of each workpiece is slightly higher than the top surface of the loading and transfer clamping plate 3011, but the top surface of each workpiece is still lower than the bottom surface of the corresponding pressure plate 302.

[0090] S304: The downward pressing cylinder 303 extends downward, driving each of the pressure plates 302 to push down the top surface of the corresponding workpiece, so as to ensure that the upper surface of each workpiece is in a flat state.

[0091] S40: The loading and transfer drive mechanism 304 drives the loading and transfer clamping mechanism 301 to move above the carrier 401. The loading and transfer clamping mechanism 301 releases the workpiece, and each workpiece can be placed into the corresponding carrier 401.

[0092] S50: The unloading and transfer drive mechanism 508, in conjunction with the rotary positioning mechanism 4, performs angle correction on each workpiece; specifically:

[0093] S501: The unloading transfer drive mechanism 508 drives the pressure needle 507 to move above the carrier 401 and presses the workpiece downward.

[0094] It should be noted that using the pressure needle 507 can reduce the contact area with the workpiece. Correspondingly, the top surface of the workpiece can be provided with a positioning hole that matches the pressure needle 507, so as to prevent the pressure needle 507 from scratching the top surface of the workpiece when the workpiece rotates later.

[0095] S502: The photoelectric sensor 505 detects whether each workpiece has been fully engaged with the corresponding carrier 401 (for example, the protrusion 101 of the oil cup 1 has not just fallen into the positioning notch 4013).

[0096] It should be noted that when the workpiece fails to fully engage with the corresponding carrier 401 (for example, the protrusion 101 of the oil cup 1 is located on the annular boss 4012 and fails to fall into the positioning notch 4013), the position of the workpiece is higher, which will inevitably overcome the elastic force of the compression spring 503, causing the floating block 502 to slide upward relative to the unloading transfer beam 501 to a higher position. Therefore, when the photoelectric sensor 505 detects that the floating block 502 is at a higher position, it can be considered that the workpiece corresponding to the floating block 502 has failed to fully engage with the carrier 401.

[0097] Similarly, when the workpiece is not fully engaged with the corresponding carrier 401, the position of the workpiece is low. Under the elastic force of the compression spring 503, the floating block 502 slides down to a lower position relative to the unloading transfer beam 501. Therefore, when the photoelectric sensor 505 detects that the floating block 502 is in a low position, it can be considered that the workpiece corresponding to the floating block 502 has been fully engaged with the carrier 401. At this time, rotating the carrier 401 to a specific angle is equivalent to rotating the workpiece to a specific angle.

[0098] S60: The rotary motor 402 drives each vehicle 401 to rotate synchronously via the transmission belt 405. During this process:

[0099] ① Initially, if the workpiece is not fully engaged with the corresponding carrier 401, the carrier 401 will rotate relative to the workpiece until the workpiece is fully engaged with the corresponding carrier 401 (for example, as the carrier 401 rotates continuously, the protrusion 101 of the oil cup 1 will fall into the positioning notch 4013 at a certain moment), and the workpiece will rotate synchronously with the carrier 401.

[0100] ②At the beginning, if the workpiece is fully engaged with the corresponding carrier 401, the workpiece will rotate synchronously with the carrier 401.

[0101] S70: When all photoelectric sensors 505 detect that the corresponding floating block 502 is in a low position and each carrier 401 is in a preset angle, the rotary motor 402 can stop working.

[0102] It should be noted that if after each carrier 401 has rotated many times (e.g., 2, 3, 4 or even more), some photoelectric sensors 505 still detect that the corresponding floating block 502 is in a high position, it can be considered that there is an abnormality in the workpiece inside the carrier 401. At this time, after each carrier 401 is rotated to the preset angle, the rotating motor 402 should be stopped, and the abnormal workpiece should be marked as a defective product.

[0103] S80: The unloading transfer drive mechanism 508 drives the unloading transfer gripper assembly 504 to remove the workpiece from the carrier 401. After the workpiece marked as defective is placed into the recycling box 7, the qualified workpiece is placed into the discharge tray of the unloading mechanism 6.

[0104] S90: If there are defective products, the discharge tray should not be full. At this time, the unloading transfer drive mechanism 508 drives the unloading transfer gripper assembly 504 to add some workpieces (already positioned at the correct angle) from the replenishment rack 8 into the discharge tray, so that the discharge tray is fully loaded. Finally, the discharge conveyor belt delivers each workpiece that meets the positioning angle requirements to the downstream automated assembly equipment.

[0105] In summary, the rotary positioning and feeding mechanism provided in this embodiment has the following advantages: the unloading and transfer drive mechanism 508 can cooperate with the rotary positioning mechanism 4 to perform angle correction on each workpiece, so that each workpiece is conveyed downstream at the same angle, thereby completing the angle correction mechanized operation, thereby reducing labor costs and improving production efficiency.

[0106] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0107] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rotary positioning and feeding mechanism, characterized in that, It includes a feeding mechanism (2), a loading and transfer mechanism (3), a rotary positioning mechanism (4), a unloading and transfer mechanism (5), and a discharging mechanism (6); The feeding mechanism (2) is used to provide workpieces; The loading and transfer mechanism (3) is used to take the workpiece out from the feeding mechanism (2) and put it into the rotary positioning mechanism (4); The rotary positioning mechanism (4) includes a plurality of carriers (401) for placing the workpiece and a rotary motor (402) for driving each of the carriers (401) to rotate. The unloading and transfer mechanism (5) is used to place the workpiece into the unloading mechanism (6). in, The material transfer mechanism (5) includes: Material transfer crossbeam plate (501); A plurality of floating blocks (502), each of the floating blocks (502) being slidably connected to the unloading transfer beam plate (501) in a vertical manner; A compression spring (503) is used to drive the floating block (502) to slide downward relative to the unloading transfer beam (501); A plurality of unloading transfer gripper assemblies (504) are provided in one-to-one correspondence with each of the floating blocks (502), and the unloading transfer gripper assemblies (504) are installed on the bottom of the corresponding floating block (502); A plurality of photoelectric sensors (505) are provided in one-to-one correspondence with each of the floating blocks (502). The photoelectric sensors (505) are located above the corresponding floating block (502) and are used to detect the vertical position of the floating block (502). The material transfer drive mechanism (508) is connected to the material transfer crossbeam plate (501) at its drive end, and drives the material transfer crossbeam plate (501) to reciprocate between the rotary positioning mechanism (4) and the discharge mechanism (6).

2. The rotary positioning and feeding mechanism according to claim 1, characterized in that, The feeding mechanism (2) includes two spaced feeding conveyor belts (201), a feeding lifting assembly (202a) for storing stacked full-loaded trays, and a tray-receiving lifting assembly (202b) for storing stacked empty trays.

3. The rotary positioning and feeding mechanism according to claim 2, characterized in that, Both the feeding lifting assembly (202a) and the closing lifting assembly (202b) include: A plurality of limiting columns (2021) are fixed above the two feeding conveyor belts (201) to limit the horizontal position of the material tray; A lifting platform (2022) is located between the two feeding conveyor belts (201); Two opposing side clamping mechanisms (2023) are located above the two feeding conveyor belts (201).

4. The rotary positioning and feeding mechanism according to claim 1, characterized in that, The feeding and transfer mechanism (3) includes: The loading and transfer clamping mechanism (301) includes two oppositely arranged loading and transfer clamping plates (3011) and a loading and transfer gripper cylinder (3012) that drives the two loading and transfer clamping plates (3011) to move closer or further away from each other. Several pressure plates (302), each of the pressure plates (302) is located above the two loading and transfer clamps (3011); A pressure cylinder (303) is provided, the drive end of which is connected to each of the pressure plates (302) and is used to drive each of the pressure plates (302) to press down on the corresponding workpiece.

5. The rotary positioning and feeding mechanism according to claim 4, characterized in that, The feeding and transfer mechanism (3) also includes: The loading and transfer drive mechanism (304) is connected to the loading and transfer clamping mechanism (301) and the pressing cylinder (303) at its drive end. It is used to drive the loading and transfer clamping mechanism (301) and the pressing cylinder (303) to reciprocate linearly between the feeding mechanism (2) and the rotary positioning mechanism (4).

6. The rotary positioning and feeding mechanism according to claim 1, characterized in that, The rotary positioning mechanism (4) further includes: Correct the crossbeam plate (403); A plurality of longitudinal rotating shafts (404) are provided in one-to-one correspondence with each of the aforementioned vehicles (401). The upper end of each longitudinal rotating shaft (404) is fixedly connected to the bottom of the corresponding vehicle (401), the middle part is rotatably connected to the correction beam plate (403), and the lower end is drivenly connected to the rotary motor (402).

7. The rotary positioning and feeding mechanism according to claim 6, characterized in that, The rotary motor (402) drives each of the longitudinal shafts (404) to rotate synchronously via a transmission belt (405).

8. The rotary positioning and feeding mechanism according to claim 6, characterized in that, The side of the correction beam plate (403) is also provided with a recycling box (7) for storing defective products.

9. The rotary positioning and feeding mechanism according to claim 1, characterized in that, The unloading transfer gripper assembly (504) is connected to an L-shaped connecting plate (506), and the L-shaped connecting plate (506) is provided with a downwardly protruding pressure pin (507).

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