Full-automatic heat sealing device with turnover positioning for small cover filter

Abstract

The application discloses a kind of full-automatic heat-sealing device of small cover filter with overturning positioning, including rack and parallel inlet, discharge conveying line, and the end of inlet line is equipped with overturning side positioning mechanism, and flexible feeding is realized using elastic rubber-coated roller, and power decoupling is realized through arc chute in initial overturning stage, and X-axis lateral positioning is completed in cooperation with cylinder;The middle part of discharge line is equipped with jacking mechanism and heat-sealing mechanism, and jacking mechanism adopts "7" shaped cam groove transmission, and vertical mechanical rigidity self-locking is formed when jacking in place to resist heat-sealing down pressure stress;End positioning transfer mechanism and defective product removing mechanism integrated with CCD component are arranged above, Y-axis positioning, filter blanking, transfer and double repeated inspection sorting are completed, overturning, positioning, assembly, heat-sealing and detection are highly integrated in the application, full-automatic continuous operation is realized, manual operation is completely replaced, and production efficiency and product yield are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of heat sealing equipment technology, and in particular to a fully automatic heat sealing device for small cover filter discs with flip positioning. Background Technology

[0002] Currently, the battery manufacturing industry mostly uses manual or semi-automated equipment for the assembly and heat sealing of small cover filter elements. In the existing production mode, the material feeding and unloading, the tilting posture adjustment, and the precise positioning of the filter element in the X and Y axes before assembly often require a lot of manual intervention and assistance.

[0003] This highly manual operation method has significant drawbacks: on the one hand, the various processes (such as feeding and turning, transfer and positioning, and heat sealing) are discrete and lack highly integrated automated connections, resulting in long material flow stagnation times and a slow overall production cycle; on the other hand, the repetitive handling, positioning, and unloading actions performed by humans for extended periods not only involve high labor intensity and labor costs, but also easily lead to unstable production cycles due to personnel fatigue, failing to meet the requirements of modern production lines.

[0004] Therefore, the industry urgently needs a fully automated device that can flip, precisely position, and automatically transfer materials to replace manual operation and achieve continuous and efficient assembly line operations. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a fully automatic heat-sealing device for small cover filter discs with flip positioning, thereby solving the problems mentioned in the background art.

[0006] To achieve the above technical objectives, the present invention provides a fully automatic heat-sealing device for small-cap filter sheets with flip-over positioning, comprising a frame on which a feeding conveyor line and a discharging conveyor line are arranged in parallel, both of which are double-row synchronous belt conveyors; a flip-over positioning mechanism is provided at the end of the feeding conveyor line; a lifting mechanism is provided between the two synchronous belts in the middle of the discharging conveyor line, and a heat-sealing mechanism cooperating with the lifting mechanism is provided on one side of the discharging conveyor line; an end-positioning transfer mechanism and a defective product rejection mechanism are arranged above the feeding and discharging conveyors, both of which are two-axis gantry-type manipulators; wherein, the execution end of the end-positioning transfer mechanism is provided with an end-positioning clamping and unloading mechanism; and the execution end of the defective product rejection mechanism is provided with a suction cup gripper.

[0007] Furthermore, the tilting side positioning mechanism includes two tilting brackets symmetrically arranged with the side of the feeding conveyor line and a driving mechanism; a tilting shaft is rotatably mounted on the tilting bracket, one end of the tilting shaft is connected to the output end of the tilting motor, and the other end is connected to the roller frame; a spline sleeve that mates with the keyway of the tilting shaft is provided on the side of the roller frame adjacent to the tilting bracket, and a side positioning cylinder is fixedly mounted on the tilting bracket, with a shift fork plate connected to its piston rod. The shift fork plate and the spline sleeve are rotatably connected through a bearing. When the side positioning cylinder is activated, the shift fork plate pushes the roller frames on both sides to move closer or further apart along the X-axis direction.

[0008] Furthermore, two sets of rollers are symmetrically arranged vertically on the side of the roller frame away from the tilting bracket. The two sets of rollers are driven by a belt, and the rollers are covered or coated with an elastic material layer. The elastic material layer is deformed under pressure to achieve flexible clamping of the upper and lower surfaces of the material. The rollers at the ends of the roller frames extend outward to form a friction drive shaft. A material blocking mechanism is provided between the two roller frames. The material blocking mechanism includes a connecting seat and a guide rod fixed on one side of the roller frame. The guide rod slides through the roller frame on the other side. A stop block is slidably sleeved on the guide rod, and a return spring is provided between the stop block and the connecting seat. Unlocking cylinders are installed on the frames at both ends of the roller frames. The piston rod of the unlocking cylinder is connected to an unlocking hook plate.

[0009] Furthermore, the drive mechanism is located on one side of the flipping bracket, including a vertically arranged drive support plate. A drive motor is installed at one end of the drive support plate, and an arc-shaped groove with the output shaft of the drive motor as the center is opened at the other end. The drive shaft is slidably fitted in the arc-shaped groove, and one end is connected to the drive motor via a belt. The other end is provided with a support bushing. A telescopic support rod with an internal spring is fixed on the outer ring surface of the support bushing. When the flipping starts, the friction transmission shaft flips down with the roller frame, pressing the drive shaft against the spring force and sliding down the arc-shaped groove to achieve mechanical self-disengagement of the power. The drive shaft and the friction transmission shaft adopt friction transmission or small module fine gear meshing transmission.

[0010] Furthermore, the lifting mechanism includes a lifting base, with lifting guide columns at its four corners and guide sleeves that cooperate with the lifting guide columns on the lower surface of the support plate; two sets of symmetrical vertical guide plates with vertical slots are fixed on the lifting base, and the tops of the opposing vertical guide plates are connected by a connecting plate; two sets of inclined slot plates are slidably fitted below the connecting plate, and the inclined slot plates are provided with "7"-shaped cam grooves including an inclined lifting section and a top horizontal locking section; the two sets of inclined slot plates are driven to reciprocate horizontally by a lifting cylinder; a lifting transverse strip with a sliding column fixed between the inclined slot plate and the vertical guide plate is provided, and the sliding column passes through both the vertical slot and the "7"-shaped cam groove; when the sliding column moves to the horizontal locking section of the "7"-shaped cam groove, it forms a vertical mechanical rigid self-locking mechanism that resists the downward pressure stress of the heat sealing mechanism.

[0011] Furthermore, a rubber buffer layer is attached to the upper surface of the support plate, and a vacuum suction cup connected to an external negative pressure source is embedded in the rubber buffer layer.

[0012] Furthermore, the end positioning clamping and unloading mechanism includes a clamping bracket and a mounting plate. The mounting plate is equipped with clamping cylinders at both ends. Each clamping cylinder has a clamping plate connected to its piston rod. The two clamping plates move towards each other to achieve Y-axis positioning. An elastic buffer frame is installed on the lower surface of the mounting plate. A filter sheet feeding pipe that communicates with an external feeding system is installed through the elastic buffer frame.

[0013] Furthermore, a CCD vision inspection component for initial inspection is installed on the truss structure of the end positioning and transfer mechanism; a CCD vision inspection component for re-inspection is installed on the truss structure of the defective product rejection mechanism.

[0014] Compared with the prior art, the beneficial effects of the present invention include: 1. This invention highly integrates multiple functional modules such as feeding and discharging, flipping side positioning, end positioning assembly, mechanical self-locking lifting heat sealing, and defective product rejection, realizing fully automated closed-loop continuous operation of the small cover filter assembly heat sealing process. It completely replaces traditional manual intervention, greatly shortens the waiting time between processes, and significantly improves the overall production capacity of the entire line.

[0015] 2. This invention utilizes an arc-shaped sliding groove in the drive mechanism in conjunction with a telescopic support rod with a built-in spring. By using the initial movement trajectory of the tilting frame to force the drive shaft to retract accordingly, the power source for feeding is flexibly detached. This design eliminates the need for additional pneumatic push-pull components, thereby eliminating the risk of interference between mechanisms and making the equipment structure more compact and its operation extremely stable.

[0016] 3. This invention achieves mechanical rigidity self-locking in the vertical direction when the sliding column enters the top horizontal section of the groove by using a sloping plate with a "7"-shaped cam groove in the lifting mechanism in cooperation with the transverse sliding column. This self-locking structure resists the stress of the heat sealing mechanism, ensures the extreme flatness of the filter sealing, and avoids physical damage to the battery cover caused by overpressure. Attached Figure Description

[0017] Figure 1 This is a perspective view of a fully automatic heat-sealing device for small cover filter discs with flip-positioning provided by the present invention; Figure 2 This is a perspective view of the flip-side positioning mechanism of a fully automatic heat-sealing device for small cover filter discs with flip-positioning provided by the present invention; Figure 3 This is a dynamic side perspective view of the flip-side positioning mechanism of a fully automatic heat-sealing device for small cover filter discs with flip-positioning provided by the present invention; Figure 4 This is a perspective view of the drive mechanism of a fully automatic heat-sealing device for small cover filter discs with flip positioning provided by the present invention; Figure 5 This is an exploded view of the lifting mechanism of a fully automatic heat-sealing device for small cover filter discs with flip-positioning provided by the present invention; Figure 6 This is a perspective view of the end positioning clamping and feeding mechanism of a fully automatic heat sealing device for small cover filter discs with flip positioning provided by the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0019] This invention provides a fully automatic heat-sealing device for small-cap filter discs with flip-positioning, see reference. Figure 1The device includes a frame 1, on which a feeding conveyor 2 and a discharging conveyor 3 are arranged in parallel, both being double-row synchronous belt conveyors. A flipping side positioning mechanism 4 is located at the end of the feeding conveyor 2; a lifting mechanism 5 is located between the two synchronous belts in the middle of the discharging conveyor 3, and a heat-sealing mechanism 6 cooperating with the lifting mechanism 5 is located on one side of the discharging conveyor 3. An end-positioning transfer mechanism 7 and a defective product rejection mechanism 8 are spanned above the feeding conveyor 2 and the discharging conveyor 3, both employing a two-axis truss-type robotic arm structure. The end-positioning transfer mechanism 7 has an end-positioning clamping and unloading mechanism at its execution end, and a CCD vision inspection component for initial inspection is mounted on its truss structure. The defective product rejection mechanism 8 has a suction cup gripper at its execution end, and a CCD vision inspection component for re-inspection is mounted on its truss structure.

[0020] Reference Figure 2 The tilting side positioning mechanism 4 includes two tilting brackets 401 arranged symmetrically with the side of the feeding conveyor line 2 and a drive mechanism 9. (Refer to...) Figure 3 Taking the layout of the power side of the flipping side positioning mechanism 4 as an example, a flipping shaft 402 is rotatably mounted on the flipping bracket 401. One end of the flipping shaft 402 is connected to the output end of the flipping motor 403, and the other end is connected to the roller frame 404. A spline sleeve 405 that mates with the keyway of the flipping shaft 402 is provided on the side of the roller frame 404 adjacent to the flipping bracket 401. A side positioning cylinder 406 is fixedly mounted on the flipping bracket 401. A shift fork plate 407 is connected to its piston rod. The shift fork plate 407 and the spline sleeve 405 are rotatably connected by a bearing (the spline sleeve 405 is interference-fitted to the inner ring of the bearing). When the side positioning cylinder 406 is activated, the shift fork plate 407 can push the two roller frames 404 to move closer or further apart along the X-axis direction to achieve lateral clamping and positioning.

[0021] Two sets of rollers are symmetrically arranged on the side of the roller frame 404 away from the flip bracket 401, and are driven by a belt. Preferably, the roller surface is covered with an elastic material layer (such as polyurethane or silicone material). The initial distance between the upper and lower sets of rollers is slightly less than the thickness of the battery cover. During feeding, the elastic material layer on the roller surface is deformed under pressure to achieve flexible clamping of the upper and lower surfaces of the cover. The roller at the end of the roller frame 404 extends outward to form a friction drive shaft 408. A material blocking mechanism is provided between the two roller frames 404, including a connecting seat 409 fixed on one side of the roller frame and a guide rod 410. The guide rod 410 slides through the roller frame on the other side. A stop 412 is slidably sleeved on the guide rod 410, and a return spring 413 is provided between the stop 412 and the connecting seat 409. A stabilizing rod is fixed at the lower end of the stop 412. The stabilizing rod extends along the direction of the return spring 413 and slides through the connecting seat 409. Due to the presence of the stop 412, there is a certain space between the guide rod 410 and the small battery cover intercepted in the roller frame. This reserved space is intended to provide a clearance passage for the descent and clamping action of the external clamp in the subsequent transfer process. Unlocking cylinders 411 are installed on the frame 1 at both ends of the roller frame 404. The piston rod of the cylinder is connected to the unlocking hook plate 414. When the roller frame is in the horizontal feeding state, the unlocking cylinder 411 retracts, and the unlocking hook plate 414 pulls the stop 412 to compress the return spring 413, thereby realizing the opening or closing of the material blocking mechanism.

[0022] Reference Figure 4 The drive mechanism 9 is located on one side of the tilting bracket 401, including a vertically arranged drive support plate 901. One end of the drive support plate 901 is equipped with a drive motor 902, and the other end is provided with an arc-shaped groove 903 with the output shaft of the drive motor 902 as the center. The drive shaft 904 is slidably fitted in the arc-shaped groove 903. The part of the drive shaft 904 located on one side of the drive support plate 901 is connected to the drive motor 902 via a belt. The other side is provided with a support bushing 905. A telescopic support rod 906 (including a sleeve, an internal support rod, and a bottom spring) is fixed on the outer ring surface of the support bushing 905. During feeding, the drive shaft 904 is in contact with the friction transmission shaft 408 of the roller frame for friction transmission. When the tilting starts, the friction transmission shaft 408 presses the drive shaft 904 downward along the tilting trajectory of the roller frame, forcing it to overcome the spring force of the telescopic support rod 906 and slide downward along the arc-shaped groove 903, thereby achieving flexible disengagement of the transmission mechanism.

[0023] Reference Figure 5The lifting mechanism 5 includes a lifting base 501, with lifting guide columns 502 at the four corners. A guide sleeve 508, which mates with the lifting guide columns 502, is provided on the lower surface of the support plate 506. Two sets of symmetrical vertical guide plates 503 (with vertical slots) are fixed on the lifting base 501. The tops of the opposing vertical guide plates are connected by a connecting plate 509. A sliding groove is provided on the adjacent surface of the connecting plate and the lifting base, and two sets of inclined slot plates 505 are slidably fitted thereon. The inclined slot plates 505 have a "7"-shaped cam groove, which includes an inclined lifting section and a horizontal locking section at the top (the horizontal section coincides with or is slightly lower than the top of the vertical slot of the vertical guide plate). The two sets of inclined slot plates 505 are fixedly connected and driven by a lifting cylinder 504 to reciprocate horizontally. A lifting transverse strip 510 is provided between the inclined slot plates 505 and the vertical guide plates 503, on which a sliding column 511 is fixed. The sliding column 511 passes through both the vertical strip hole and the "7"-shaped cam groove. The upper end of the lifting transverse strip 510 passes through the connecting plate 509 and is fixed to the support plate 506. The upper surface of the support plate 506 is covered with a rubber buffer layer 507 and has a vacuum suction cup 512 that is connected to an external negative pressure source.

[0024] Reference Figure 6 The end positioning clamping and unloading mechanism includes a clamping bracket 701 and a mounting plate 702. The mounting plate is equipped with clamping cylinders 703 at both ends. Clamping plates 704 are provided on the piston rods of the clamping cylinders 703. Thanks to the space reserved between the guide rod 410 and the battery cover in the aforementioned material blocking mechanism, the clamping plates 704 can be smoothly inserted into the space when they descend to clamp the two ends of the battery cover without any mechanical interference with the guide rod 410. When the clamping cylinders 703 retract, the two clamping plates 704 move closer to the center of the mounting plate 702 (achieving Y-axis positioning). An elastic buffer frame 705 is installed on the lower surface of the mounting plate 702. A filter feeding pipe 706 connected to the external feeding system is provided through the frame to accurately guide the filter to the preset filter slot in the cover.

[0025] To facilitate understanding of the present invention, the following is combined with... Figure 1 - Figure 6 The workflow of this solution is described in detail below: 1. Feeding and Initial Inspection: The battery cover is fed to the feeding conveyor line 2 by external equipment. When it reaches the end, the adjacent unlocking cylinder 411 activates to open the stop 412. The drive motor 902, through the drive shaft 904 and the friction transmission shaft 408, drives the roller belt to smoothly roll the cover into the roller frame 404, where it is intercepted by the stop on the other side. At this time, the CCD on the end positioning and transfer mechanism 7 performs an initial inspection: if it is determined to be a defective product, the unlocking cylinder 411 away from the feeding end activates to open the stop on that side, and the roller continues to rotate to discharge the defective product in a straight line; if it is determined to be a good product, it proceeds to the next stage.

[0026] 2. Tilting and Side Positioning: For good products, the tilting motor 403 starts and drives the roller frame to tilt. In the initial tilting stage, the friction drive shaft 408 presses down on the drive shaft 904, causing it to retract along the arc-shaped slide groove 903 to achieve power decoupling. After tilting to 180 degrees, the side positioning cylinder 406 pushes the roller frames on both sides to retract towards the center, clamping the small cover to achieve side positioning in the X-axis direction.

[0027] 3. End Positioning and Filter Assembly: The end positioning and transfer mechanism 7 moves above the roller frame, and the clamping cylinder 703 drives the two clamping plates 704 to move towards the center, completing the end positioning in the Y-axis direction. At this time, the small cover is completely fixed in the XY coordinate system. The external feeding mechanism accurately puts the small cover filter into the small cover filter slot through the filter feed pipe 706.

[0028] 4. Transfer and Heat Sealing Preparation: The side positioning cylinder 406 is reset and released. The end positioning and transfer mechanism 7 grabs the small cover with the assembled filter element and transfers it to the discharge conveyor line 3. The small cover moves along the conveyor line to the top of the lifting mechanism 5. The lifting cylinder 504 drives the inclined plate 505 to move horizontally, forcing the sliding column 511 to rise vertically along the inclined side of the vertical guide strip hole and the "7"-shaped groove, lifting the small cover away from the synchronous belt. When the sliding column 511 enters the horizontal section at the top of the "7"-shaped groove, the mechanism achieves vertical mechanical rigidity self-locking. At the same time, the vacuum suction cup 512 firmly adsorbs the small cover.

[0029] 5. Heat Sealing and Re-inspection Output: The heat sealing mechanism 6 presses down to perform heat sealing. The support formed by the horizontal section of the "7"-shaped groove, combined with the rubber buffer layer 507, absorbs the instantaneous downward pressure stress during heat sealing, ensuring a smooth seal without damaging the cap. After heat sealing, the lifting mechanism resets and descends. The small cap travels on the discharge conveyor line 3 and undergoes re-inspection by the CCD on the defective product rejection mechanism 8. Defective products are picked up and rejected by the suction cup frame, while good products flow out directly, completing the fully automated operation cycle.

[0030] In practical applications, the drive shaft 904 and the friction drive shaft 408 can also be replaced with gear transmission to improve transmission efficiency. In this case, the gears at the contact ends of the two are preferably small-module fine-tooth gears to reduce the probability of tooth interference at the moment of flipping contact and ensure smooth dynamic meshing.

[0031] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A fully automatic heat-sealing device for small cover filter discs with flip-up positioning, comprising a frame (1), wherein a feeding conveyor line (2) and a discharging conveyor line (3) are arranged in parallel on the frame (1), wherein both the feeding conveyor line (2) and the discharging conveyor line (3) are double-row synchronous belt conveyors; characterized in that, A flipping side positioning mechanism (4) is provided at the end of the feeding conveyor line (2); A lifting mechanism (5) is provided between the two synchronous belts in the middle of the discharge conveyor line (3), and a heat sealing mechanism (6) that cooperates with the lifting mechanism (5) is provided on one side of the discharge conveyor line (3); An end positioning and transfer mechanism (7) and a defective product rejection mechanism (8) are installed above the feeding conveyor line (2) and the discharging conveyor line (3). Both the end positioning and transfer mechanism (7) and the defective product rejection mechanism (8) are two-axis gantry-type manipulators. The execution end of the end positioning and transfer mechanism (7) is equipped with an end positioning clamping and unloading mechanism. The execution end of the defective product rejection mechanism (8) is equipped with a suction cup gripper.

2. The fully automatic heat-sealing device for a small cover filter with flip-up positioning as described in claim 1, characterized in that: The flipping side positioning mechanism (4) includes two flipping brackets (401) symmetrically arranged with the side of the feeding conveyor line (2) and a driving mechanism (9); a flipping shaft (402) is rotatably arranged on the flipping bracket (401), one end of the flipping shaft (402) is connected to the output end of the flipping motor (403), and the other end is connected to the roller frame (404); a spline sleeve (405) that mates with the keyway of the flipping shaft (402) is provided on the side of the roller frame (404) adjacent to the flipping bracket (401); a side positioning cylinder (406) is fixedly installed on the flipping bracket (401), and a shift fork plate (407) is connected to its piston rod; the shift fork plate (407) and the spline sleeve (405) are rotatably connected by bearings; when the side positioning cylinder (406) is activated, it pushes the roller frames (404) on both sides to move closer or further away from each other along the X-axis direction through the shift fork plate (407).

3. The fully automatic heat-sealing device for a small cover filter with flip-up positioning as described in claim 2, characterized in that: Two sets of rollers are symmetrically arranged on the side of the roller frame (404) away from the flipping bracket (401). The two sets of rollers are driven by a belt, and the rollers are covered or coated with an elastic material layer. The rollers at the ends of the roller frame (404) extend outward to form a friction drive shaft (408). A material blocking mechanism is provided between the two roller frames (404). The material blocking mechanism includes a connecting seat (409) fixed on one side of the roller frame and a guide rod (410) provided thereon. The guide rod (410) slides through the roller frame on the other side. A stop block (412) is slidably sleeved on the guide rod (410). A return spring (413) is provided between the stop block (412) and the connecting seat (409). Unlocking cylinders (411) are installed on the frame (1) at both ends of the roller frame (404). The piston rod of the unlocking cylinder (411) is connected to an unlocking hook plate (414).

4. The fully automatic heat-sealing device for a small cover filter with flip-up positioning as described in claim 3, characterized in that: The drive mechanism (9) is located on one side of the flipping bracket (401) and includes a vertically arranged drive support plate (901). A drive motor (902) is installed at one end of the drive support plate (901), and an arc-shaped groove (903) with the output shaft of the drive motor (902) as the center is opened at the other end. The drive shaft (904) is slidably fitted in the arc-shaped groove (903), and one end is connected to the drive motor (902) through a belt. The other end is provided with a support bushing (905). A telescopic support rod (906) with an internal spring is fixed on the outer ring surface of the support bushing (905). The drive shaft (904) and the friction transmission shaft (408) are connected by friction transmission or small module fine gear meshing transmission.

5. A fully automatic heat-sealing device for a small cover filter with flip-positioning according to any one of claims 1 to 4, characterized in that: The lifting mechanism (5) includes a lifting base (501), with lifting guide columns (502) at the four corners of the lifting base (501), and guide sleeves (508) that cooperate with the lifting guide columns (502) on the lower surface of the support plate (506); two sets of symmetrical vertical guide plates (503) with vertical slots are fixed on the lifting base (501), and the tops of the opposite vertical guide plates are connected by a connecting plate (509); two sets of inclined groove plates (505) are slidably fitted below the connecting plate (509), and the inclined grooves... The plate (505) is provided with a "7"-shaped cam groove including an inclined lifting section and a top horizontal locking section; the two sets of inclined groove plates (505) are driven to reciprocate horizontally by a lifting cylinder (504); a lifting transverse strip (510) with a fixed sliding column (511) is provided between the inclined groove plate (505) and the vertical guide plate (503), and the sliding column (511) passes through the vertical strip hole and the "7"-shaped cam groove at the same time; when the sliding column (511) moves to the horizontal locking section of the "7"-shaped cam groove, it forms a vertical mechanical self-locking.

6. The fully automatic heat-sealing device for a small cover filter with flip-up positioning as described in claim 5, characterized in that: The upper surface of the support plate (506) is covered with a rubber buffer layer (507), and a vacuum suction cup (512) connected to an external negative pressure source is embedded in the rubber buffer layer (507).

7. A fully automatic heat-sealing device for a small cover filter with flip-positioning according to any one of claims 1 to 4, characterized in that: The end positioning clamping and unloading mechanism includes a clamping bracket (701) and a mounting plate (702). The mounting plate (702) is provided with clamping cylinders (703) at both ends. Each clamping cylinder (703) has a clamping plate (704) connected to its piston rod. An elastic buffer frame (705) is installed on the lower surface of the mounting plate (702). A filter sheet feeding pipe (706) communicating with an external feeding system is provided through the elastic buffer frame (705).

8. A fully automatic heat-sealing device for a small cover filter with flip-positioning according to any one of claims 1 to 4, characterized in that: The truss structure of the end positioning and transfer mechanism (7) is equipped with a CCD vision inspection component for initial inspection; the truss structure of the defective product rejection mechanism (8) is equipped with a CCD vision inspection component for re-inspection.

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