A seasoning turnover lid plus cover mechanism

Abstract

The utility model provides a seasoning flip cover plus cover mechanism belongs to seasoning roof box packing plus cover equipment technical field, solves the problem that existing round packing cover's plus cover mechanism cannot realize flip cover installation direction unification, poor practicality, including plus cover support seat, the movable setting of plus cover support seat has the cover claw head of taking, the upper portion of plus cover support seat is connected through the transmission mechanism of taking cover claw head of taking, taking cover transmission mechanism is connected with taking cover drive motor, the lower portion of taking cover claw head is provided with packing paper box, the outlet of packing cover conveying slide way upper end of taking cover claw head is provided with packing cover push mechanism, and the side of taking cover claw head is provided with taking auxiliary cylinder in the front end of packing cover push mechanism, and the lower portion of taking auxiliary cylinder is provided with the upper cover auxiliary cylinder. Its design is reasonable, the structure is compact, occupies small space, can realize seasoning flip cover installation direction's unification, operation efficiency is high, and the adaptability is good, and the practicality is strong.

Description

Technical Field

[0001] This invention belongs to the technical field of gable box packaging equipment for condiments, specifically relating to a mechanism for adding an outer cap to a condiment flip-top lid. Background Technology

[0002] Current gable-top packaging technologies generally use standard circular caps, and regardless of whether they have an internal pull ring, they are all-directional caps. The capping mechanisms on the accompanying equipment are also relatively simple. However, for products like condiments, which are consumed in small quantities daily and used over long periods, gable-top packaging requires a flip-top cap for easier opening and closing, utilizing a specially designed outlet with a smaller flow rate to suit the condiment's placement. However, the flip-top caps used for condiments require a specific orientation for the opening part, meaning the installation position must be consistent; but existing circular capping mechanisms cannot achieve this uniformity. Therefore, it is necessary to improve the existing flip-top capping mechanism for condiment gable-top packaging. Summary of the Invention

[0003] The present invention addresses the above-mentioned problems by providing a condiment flip-top cover mechanism that is compact in structure, occupies little space, can achieve a unified installation direction of the condiment flip-top cover, has high operating efficiency, good adaptability, and strong practicality.

[0004] The technical solution adopted in this invention is as follows: the condiment flip-top lid mechanism includes a lid support base, characterized in that: a lid-removing claw is movably arranged on the lid support base, the lid-removing claw is connected to the upper part of the lid support base through a lid-removing transmission mechanism, and the driving end of the lid-removing transmission mechanism is connected to the output end of the lid-removing drive motor; a continuously conveyed packaging box is arranged below the lid-removing claw, and a packaging lid conveying slide is arranged above the lid-removing claw, with several continuously arranged flip-top packaging lids arranged on the packaging lid conveying slide; a packaging lid pushing mechanism is arranged at the outlet at the lower end of the packaging lid conveying slide; a lid-removing auxiliary cylinder is arranged at the front end of the packaging lid pushing mechanism on the side where the lid-removing claw is not arranged; a lid-top auxiliary cylinder is arranged below the lid-removing auxiliary cylinder at a position corresponding to the packaging lid installation position on the packaging box; the lid-top auxiliary cylinder and the lid-removing auxiliary cylinder are respectively fixedly connected to a cylinder connecting frame.

[0005] The packaging cap pushing mechanism includes a pushing moving block, a Z-shaped connecting frame fixedly mounted on the upper side of the pushing moving block, a vertically downward-arranged cap-lifting cylinder mounted on the upper end of the Z-shaped connecting frame, a cap-lifting spacer mounted on the lower telescopic end of the cap-lifting cylinder, and a packaging cap U-shaped pushing head mounted on the front end of the pushing moving block, directly below the cap-lifting spacer. The packaging cap U-shaped pushing head has an upward-opening packaging cap slot, and a positioning groove for cooperating with the positioning strip on the flip packaging cap is provided in the packaging cap slot. A pushing cylinder is also mounted on the lower side of the pushing moving block, and the telescopic end of the pushing cylinder is fixedly connected to the lower side of the front end of the pushing moving block through a telescopic end connecting block. The extension and retraction of the cap-lifting cylinder on the Z-shaped connecting frame drives the cap-lifting spacer at the lower end to move up and down. This moves a flipped packaging cap at the lower exit of the packaging cap conveyor slide downwards into the packaging cap slot of the U-shaped pusher head below. The positioning groove in the packaging cap slot cooperates with the positioning strip on the flipped packaging cap to restrict the installation position of the flipped packaging cap. At the same time, the cap-lifting spacer can separate the flipped packaging caps in the packaging cap conveyor slide, preventing multiple packaging caps from being sent out at the same time, which is conducive to the separation and feeding of packaging caps. Furthermore, the pusher cylinder drives the pusher block and the packaging cap U-shaped pusher head and Z-shaped connecting frame to move back and forth together, thereby pushing a single flipped packaging cap to the cap picking station, which is convenient for the cap picking claw to pick up the cap.

[0006] The cover-removing transmission mechanism includes a horizontally arranged swing telescopic rod. The front end of the swing telescopic rod is fixedly connected to the cover-removing claw head, and the rear end of the swing telescopic rod is rotatably connected to the rotating rod connecting shaft set in the middle of the guide back plate through a rotating connecting rod. The rotating rod connecting shaft is connected to the output end of the cover-removing drive motor. A vertically arranged lifting guide rail is provided on the upper end of the guide back plate near the cover-removing claw head. A lifting sliding block is slidably arranged on the lifting guide rail. A telescopic guide seat is also provided on the lifting sliding block along the extension direction of the swing telescopic rod. The middle part of the swing telescopic rod is movably connected to the telescopic guide seat. The mechanism uses a cap-lifting drive motor to drive a rotating linkage to rotate forward or backward, which in turn drives a swing telescopic rod hinged to the rotating linkage to move up and down and extend and retract. This achieves a combined action of lifting, swinging, and extending the cap-lifting claw head at the front end of the swing telescopic rod, thereby completing the actions of grabbing and flipping the packaging cap at the upper packaging cap pushing mechanism cap-lifting station and capping the cardboard box at the lower packaging box capping station. Furthermore, the lifting sliding block and the telescopic guide seat set on the lifting sliding block are used to reliably guide the combined action of the swing telescopic rod.

[0007] The guide back plate, on its front side where the rotating connecting rod is arranged, has a telescopic rod guide annular groove. Correspondingly, the swing telescopic rod has an annular groove fitting structure at a position corresponding to the guide annular groove. During the rotational motion of the rotating connecting rod with the cover-removing drive motor, the annular groove fitting structure, in conjunction with the telescopic rod guide annular groove on the guide back plate, guides and limits the movement path of the swing telescopic rod. This ensures that the cover-removing claw can complete the combined action of raising and lowering the cover according to a preset movement trajectory, effectively preventing deviation from the running trajectory and improving the reliability of the mechanism.

[0008] One end of the rotating connecting rod is connected to the rotating rod connecting shaft through a connecting shaft hinge hole, and the other end of the rotating connecting rod is provided with an elongated oval hinge hole. The rotating rod hinge part at the rear end of the swing telescopic rod is hinged to the elongated oval hinge hole on the rotating connecting rod through a telescopic rod drive shaft. Furthermore, the end of the telescopic rod drive shaft that contacts the telescopic rod guide ring groove is provided with a ring groove mating roller. The rolling guidance of the ring groove mating roller at the end of the telescopic rod drive shaft within the telescopic rod guide ring groove on the guide back plate precisely constrains the movement trajectory of the swing telescopic rod. The mating hinge between the telescopic rod drive shaft at the rear end of the swing telescopic rod and the elongated oval hinge hole on the rotating connecting rod compensates for positional deviations during the compound movement of the swing telescopic rod.

[0009] The upper and lower parts of the front side of the guide back plate are respectively equipped with a forward rotation photoelectric switch and a reverse rotation photoelectric switch. Correspondingly, the rear end of the swing telescopic rod is equipped with a photoelectric switch trigger piece. During the combined action of the swing telescopic rod, the photoelectric switch trigger pieces on the upper and lower sides of the hinge of the rear rotating rod of the swing telescopic rod are used to trigger the forward rotation photoelectric switch and the reverse rotation photoelectric switch on the front side of the guide back plate, thereby sending a signal to the control system of the cover-removing drive motor. This allows the control system to detect the movement position of the swing telescopic rod at the upper and lower positions and control the start / stop and forward / reverse rotation of the cover-removing drive motor.

[0010] The upper and lower ends of the lifting guide rail are respectively provided with sliding buffer blocks to buffer the reciprocating lifting movement of the lifting block. When the lifting block moves along the lifting guide rail to the limit position at the upper or lower end of the guide rail, the sliding buffer blocks fixed at both ends of the lifting guide rail absorb the impact energy, buffer and reduce shock, prevent the lifting block from directly and rigidly impacting the end of the guide rail, reduce vibration and collision damage to components, and at the same time limit the overtravel displacement of the lifting block.

[0011] The cap-grabbing claw is equipped with a cap suction nozzle. The front end of the suction nozzle is connected to the flipped-over cap, and the rear end of the suction nozzle is connected to a vacuum line. This vacuum line is connected to a vacuum generator via a vacuum line. The vacuum line and vacuum generator create a negative pressure on the cap suction nozzle of the cap-grabbing claw, which then uses this negative pressure to hold the flipped-over cap. When the cap needs to be released, the vacuum generator releases the negative pressure, allowing the cap suction nozzle to release the cap, thus completing the cap gripping and release process.

[0012] The telescopic end of the cap-removing auxiliary cylinder is equipped with a cap-removing push rod; the telescopic end of the upper cover auxiliary cylinder is equipped with an upper cover positioning cap. When the swing telescopic rod and the cap-removing upper cover claw move to the upper cap-removing position, the cap-removing push rod at the telescopic end of the cap-removing auxiliary cylinder cooperates with the packaging cover pushing head of the packaging cover pushing mechanism to facilitate the gripping of the flipped packaging cover. Furthermore, when the swing telescopic rod and the cap-removing upper cover claw move to the lower upper cover position, the upper cover positioning cap at the telescopic end of the upper cover auxiliary cylinder cooperates with the mounting hole on the packaging carton to facilitate the installation of the flipped packaging cover.

[0013] The beneficial effects of this invention are as follows: Because this invention employs a cap-removing claw movably mounted on a cap support base, the cap-removing claw is connected to the upper part of the cap support base via a cap-removing transmission mechanism, and the cap-removing transmission mechanism is connected to a cap-removing drive motor. Below the cap-removing claw is a continuously conveying packaging box, above the cap-removing claw is a packaging cap conveying slide, and at the lower end of the packaging cap conveying slide is a packaging cap pushing mechanism. At the front end of the packaging cap pushing mechanism, on the side without the cap-removing claw, is a cap-removing auxiliary cylinder, and below the cap-removing auxiliary cylinder is a cap-removing auxiliary cylinder. Therefore, this invention has a reasonable design, compact structure, small space occupation, can achieve a unified installation direction for the condiment flip cap, has high operating efficiency, good adaptability, and strong practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one structure of the present invention.

[0015] Figure 2 yes Figure 1 A-direction view.

[0016] Figure 3 yes Figure 1 A schematic diagram of a packaging lid pushing mechanism.

[0017] Figure 4 yes Figure 3The diagram illustrates a usage state where the lifting cylinder extends downwards and the lifting spacer presses the bottommost flip-up packaging cover into the U-shaped pusher head of the packaging cover.

[0018] Figure 5 yes Figure 4 This diagram illustrates a usage state where the push cylinder propels the push block and the U-shaped push head of the packaging cover forward.

[0019] Figure 6 yes Figure 1 A schematic diagram of a cover-removing transmission mechanism (the cover-removing claw is located at the cover-removing station).

[0020] Figure 7 yes Figure 6 This diagram illustrates a usage state in which the rotating connecting rod drives the swing telescopic rod and the cover-picking claw to move to the cover-picking station.

[0021] Figure 8 yes Figure 6 A schematic diagram of a guide backplate in a system.

[0022] Figure 9 yes Figure 6 A schematic diagram of a connection structure between the rotating linkage and the swing telescopic rod, and between the swing telescopic rod and the lid-removing claw.

[0023] Figure 10 This is a schematic diagram of an application state in which the capping mechanism of the present invention is set above the carton conveying mechanism and used in conjunction with the ultrasonic cap welding device.

[0024] Explanation of the numbers in the diagram: 1. Lid support base; 2. Lid lifting and top-loading transmission mechanism; 3. Lid lifting and top-loading drive motor; 4. Lid lifting and top-loading claw; 5. Protective cover; 6. Packaging lid conveyor slide; 7. Flipping packaging lid; 8. Packaging lid pushing mechanism; 9. Lid lifting auxiliary cylinder; 10. Lid lifting push rod; 11. Top-loading auxiliary cylinder; 12. Top-loading positioning cap; 13. Cylinder connecting frame; 14. Packaging carton; 15. Pushing moving block; 16. Z-type connecting frame; 17. Lid lifting cylinder; 18. Lid lifting spacer; 19. Packaging lid U-shaped push head; 20. Packaging lid slot; 21. Telescopic end connecting block; 22. Pushing air... 23 Cylinder, 24 Guide back plate, 25 Swing telescopic rod, 26 Rotating connecting rod, 27 Lifting guide rail, 28 Lifting sliding block, 29 Telescopic guide seat, 30 Forward rotation photoelectric switch, 31 Reverse rotation photoelectric switch, 32 Telescopic rod connecting shaft, 33 Telescopic rod guide ring groove, 34 Sliding buffer block, 35 Telescopic rod hinge part, 36 Ring groove matching roller, 37 Connecting shaft hinge hole, 38 Long oval hinge hole, 39 Photoelectric switch trigger piece, 40 Packaging cap suction nozzle, 41 Vacuum pipeline connection port, 42 Paper box conveying mechanism, 43 Ultrasonic welding cap device. Detailed Implementation

[0025] according to Figures 1-10 The specific structure of the present invention is described in detail below. The condiment flip-top lid-adding mechanism includes a lid-adding support base 1, on which a lid-adding claw 4 is movably disposed, and the lid-adding claw 4 is connected to the upper part of the lid-adding support base 1 through a lid-adding transmission mechanism 2; the driving end of the lid-adding transmission mechanism 2 is connected to the output end of a lid-adding drive motor 3 disposed on the lid-adding support base 1, and a protective cover 5 is also provided on the outside of the lid-adding transmission mechanism 2.

[0026] The cap-removing claw 4 is equipped with a cap suction nozzle 40. The front end of the cap suction nozzle 40 is connected to the flip-top packaging cap 7, and the rear end of the cap suction nozzle 40 is equipped with a vacuum line connection port 41, which is connected to a vacuum generator via a vacuum line. The vacuum line and vacuum generator connected to the vacuum line connection port 41 generate negative pressure on the cap suction nozzle 40 of the cap-removing claw 4, using this negative pressure suction to hold the flip-top packaging cap 7. When it is necessary to release the flip-top packaging cap 7, the vacuum generator releases the negative pressure, allowing the cap suction nozzle 40 to release the flip-top packaging cap 7, thus completing the cap gripping and release process.

[0027] The cover-removing transmission mechanism 2, used to drive the cover-removing claw 4 to move along a predetermined trajectory, includes a horizontally arranged swing telescopic rod 24. The front end of the swing telescopic rod 24 is fixedly connected to the cover-removing claw 4, and the rear end of the swing telescopic rod 24 is rotatably connected to a rotating rod connecting shaft 31 located in the middle of the guide back plate 23 via a rotating connecting rod 25. The rotating rod connecting shaft 31 is connected to the output end of the cover-removing drive motor 3. A vertically arranged lifting guide rail 26 is provided on the guide back plate 23 near the end of the cover-removing claw 4. A lifting sliding block 27 is slidably arranged on the lifting guide rail 26. A telescopic guide seat 28 is also provided on the lifting sliding block 27 along the extension direction of the swing telescopic rod 24, and the middle part of the swing telescopic rod 24 is movably connected to the telescopic guide seat 28. Then, the cap-lifting drive motor 3 drives the rotating linkage 25 to rotate forward or backward, thereby causing the swing telescopic rod 24, which is hinged to the rotating linkage 25, to move up and down and extend and retract. This realizes the combined action of lifting, swinging, and extending of the cap-lifting claw 4 set at the front end of the swing telescopic rod 24, thus completing the actions of grabbing and flipping the packaging cap 7 at the cap-lifting station of the upper packaging cap pushing mechanism 8, and capping the cardboard box at the capping station of the lower packaging cardboard box 14. Furthermore, the lifting sliding block 27 set on the lifting guide rail 26 and the telescopic guide seat 28 set on the lifting sliding block 27 reliably guide the combined action of the swing telescopic rod 24.

[0028] The front side of the rotating connecting rod 25 is arranged on the guide back plate 23, and a telescopic rod guide ring groove 32 is provided. One end of the rotating connecting rod 25 is connected to the rotating rod connecting shaft 31 through the connecting shaft hinge hole 37, and the other end of the rotating connecting rod 25 is provided with an elongated oval hinge hole 38. The rotating rod hinge part 34 at the rear end of the swing telescopic rod 24 is hinged to the elongated oval hinge hole 38 on the rotating connecting rod 25 through the telescopic rod drive shaft 35; and the end of the telescopic rod drive shaft 35 that contacts the telescopic rod guide ring groove 32 is provided with a ring groove mating roller 36. Therefore, during the rotation of the connecting rod 25 with the cover-removing drive motor 3, the movement path of the swing telescopic rod 24 is limited by the rolling guidance of the roller 36 in the telescopic rod guide annular groove 32 on the guide back plate 23 through the annular groove at the end of the telescopic rod drive shaft 35. This ensures that the cover-removing claw 4 can complete the combined action of raising and lowering the cover according to the preset movement trajectory, effectively avoiding deviation of the running trajectory and improving the reliability of the mechanism. Furthermore, the positional deviation of the swing telescopic rod 24 during the combined action is compensated by the engagement of the telescopic rod drive shaft 35 on the rear rotating rod hinge part 34 and the elongated oval hinge hole 38 on the rotating connecting rod 25.

[0029] On the upper and lower parts of the front side of the guide back plate 23, corresponding to the two positions of the swing telescopic rod 24 when it is in the cap-removing and cap-attaching positions, a forward photoelectric switch 29 and a reverse photoelectric switch 30 are fixedly installed, respectively. Correspondingly, photoelectric switch trigger pieces 39 are respectively installed on the upper and lower sides of the rotating rod hinge part 34 at the rear end of the swing telescopic rod 24. Then, during the combined action of the swing telescopic rod 24, the photoelectric switch trigger pieces 39 installed on the upper and lower sides of the rotating rod hinge part 34 at the rear end of the swing telescopic rod 24 are used to trigger the forward photoelectric switch 29 and the reverse photoelectric switch 30 installed on the front side of the guide back plate 23, thereby sending a signal to the control system of the cap-removing and cap-attaching drive motor 3 to detect the action position of the swing telescopic rod 24 in the two different positions at the upper and lower parts, and control the start and stop and the forward and reverse reversal of the cap-removing and cap-attaching drive motor 3. Furthermore, the upper and lower ends of the lifting guide rail 26 are respectively provided with sliding buffer blocks 33 to buffer the reciprocating lifting movement of the lifting sliding block 27. When the lifting sliding block 27 moves to the limit position at the upper or lower end of the lifting guide rail 26, the sliding buffer blocks 33 fixed at both ends of the lifting guide rail 26 absorb the impact energy, buffer and dampen the shock, and prevent the lifting sliding block 27 from directly and rigidly impacting the end of the guide rail, thereby reducing vibration and collision damage to components. At the same time, it also limits the overtravel displacement of the lifting sliding block 27.

[0030] Below the lid-removing claw 4, a packaging carton 14 is continuously conveyed by a carton conveying mechanism 42. Above the lid-removing claw 4, a vertically arranged packaging lid conveying slide 6 is provided. The conveying slide 6 has positioning slots that engage with positioning strips on the flip-top packaging lid 7 to adjust the orientation of the flip-top packaging lid 7, facilitating subsequent gripping and capping under specified lid orientation conditions. Several continuously arranged flip-top packaging lids 7 are arranged on the packaging lid conveying slide 6, and a packaging lid pushing mechanism 8 is located at the lower end of the packaging lid conveying slide 6.

[0031] The packaging cap pushing mechanism 8 includes a pushing moving block 15. A Z-shaped connecting frame 16 is fixedly mounted on the upper side of the pushing moving block 15. A vertically downward-arranged cap-lifting cylinder 17 is mounted on the upper end of the Z-shaped connecting frame 16. A cap-lifting spacer 18 is mounted on the telescopic end of the lower part of the cap-lifting cylinder 17. Furthermore, a packaging cap U-shaped pushing head 19 is mounted on the front end of the pushing moving block 15, directly below the cap-lifting spacer 18. The packaging cap U-shaped pushing head 19 has an upward-opening packaging cap slot 20, and a positioning groove for cooperating with the positioning strip on the flip packaging cap 7 is provided in the packaging cap slot 20. A pushing cylinder 22 is also mounted on the lower side of the pushing moving block 15. The telescopic end of the pushing cylinder 22 is fixedly connected to the lower side of the front end of the pushing moving block 15 through a telescopic end connecting block 21. Therefore, by extending and retracting the cap-lifting cylinder 17 on the Z-shaped connecting frame 16, the cap-lifting spacer 18 at the lower end moves up and down, thereby pushing a flipped packaging cap 7 at the lower exit of the packaging cap conveying slide 6 downward into the packaging cap slot 20 of the packaging cap U-shaped push head 19 below. The positioning groove in the packaging cap slot 20 cooperates with the positioning strip on the flipped packaging cap 7 to restrict the installation position of the flipped packaging cap 7. At the same time, the cap-lifting spacer 18 can separate the flipped packaging caps 7 in the packaging cap conveying slide 6, preventing multiple packaging caps from being sent out at the same time, which is conducive to the distribution and feeding of packaging caps. Furthermore, the push cylinder 22 drives the push moving block 15 and the packaging cap U-shaped push head 19 and Z-shaped connecting frame 16 to move back and forth together to push a single flipped packaging cap 7 to the cap picking station, which is convenient for the cap picking claw 4 to pick up the cap.

[0032] At the front end of the packaging cap pushing mechanism 8, on the side where the cap-removing claw 4 is not located, a cap-removing auxiliary cylinder 9 is also provided. Below the cap-removing auxiliary cylinder 9, at a position corresponding to the packaging cap installation position on the packaging carton 14, a cap-removing auxiliary cylinder 11 is provided. The cap-removing auxiliary cylinder 11 and the cap-removing auxiliary cylinder 9 are respectively fixedly connected to the cylinder connecting frame 13. Furthermore, the telescopic end of the cap-removing auxiliary cylinder 9 is equipped with a cap-removing push rod 10, and the telescopic end of the upper cover auxiliary cylinder 11 is equipped with an upper cover positioning cap 12. Thus, when the swing telescopic rod 24 and the cap-removing upper cover claw head 4 move to the upper cap-removing station, the cap-removing push rod 10 provided at the telescopic end of the cap-removing auxiliary cylinder 9 cooperates with the packaging cover pushing head of the packaging cover pushing mechanism 8 to facilitate the gripping of the flipped packaging cover 7. Moreover, when the swing telescopic rod 24 and the cap-removing upper cover claw head 4 move to the lower upper cover station, the upper cover positioning cap 12 provided at the telescopic end of the upper cover auxiliary cylinder 11 cooperates with the mounting hole on the packaging carton 14 to facilitate the installation of the upper cover of the flipped packaging cover 7.

[0033] When using this condiment flip-top lid and cap-adding mechanism, firstly, several flip-top packaging lids 7 are arranged consecutively within the packaging lid conveyor slide 6. The conveyor slide relies on its positioning slots to engage with the positioning strips on the flip-top packaging lids 7, thereby regulating the posture and installation orientation of the flip-top packaging lids 7. Then, the lid-lifting cylinder 17 drives the lid-lifting spacer 18 to move downwards, thereby pushing the lowest flip-top packaging lid 7 at the bottom of the packaging lid conveyor slide 6 into the packaging lid slot 20 of the packaging lid U-shaped push head 19 at the front end of the packaging lid pushing mechanism 8. At the same time, the positioning slot in the packaging lid slot 20 engages with the positioning strip of the flip-top packaging lid 7 for positioning. Moreover, the lid-lifting spacer 18 can also separate the flip-top packaging lids 7 above, preventing multiple lids from being discharged simultaneously. After the flip-top packaging lid 7 enters the packaging lid U-shaped push head 19, the push cylinder 22 pushes the push moving block 15 forward, pushing the packaging lid U-shaped push head 19 carrying the packaging lid to the lid-removing claw head 4's lid-removing station. At the same time, the cover-removing drive motor 3 drives the rotating connecting rod 25 to reciprocate in the forward or reverse direction, thereby causing the swing telescopic rod 24 to drive the cover-removing claw head 4 at its front end to perform a compound motion of lifting, swinging, and telescopic movement under the guidance and constraint of the telescopic rod guide ring groove 32, the telescopic guide seat 28 and the lifting guide rail 26.

[0034] When the swing telescopic rod 24 moves to the upper cap-removing station, the photoelectric switch trigger 39 at the rear triggers the forward rotation photoelectric switch 29. The control system receives the signal and prepares to control the cap-removing drive motor 3 to move downward to the lower cap-removing station (forward rotation). At this time, the vacuum generator is turned on, causing the packaging cap suction nozzle 40 to generate negative pressure, which causes the cap-removing claw 4 located at the upper cap-removing station to suction the flipped packaging cap 7 inside the packaging cap U-shaped push head 19, which is also located at the cap-removing station. At the same time, the cap-removing auxiliary cylinder 9 extends, so that the cap-removing push rod 10 cooperates with the packaging cap suction nozzle 40 of the cap-removing claw 4, making it easier for the cap-removing claw 4 to firmly grip the flipped packaging cap 7. After the cap-removing claw 4 grasps the flipped packaging cap 7, the cap-removing auxiliary cylinder 9 drives the cap-removing push rod 10 to retract and avoid it. Simultaneously, the cap-removing drive motor 3 begins to rotate in reverse direction, driving the swing telescopic rod 24 and the cap-removing claw 4 holding the flipped packaging cap 7 to move towards the cap position at the lower packaging box 14 via the rotating connecting rod 25. Furthermore, when the swing telescopic rod 24 reaches the lower cap position, the photoelectric switch trigger 39 triggers the reverse photoelectric switch 30, and the control system receives the signal and prepares to control the cap-removing drive motor 3 to move upwards to the cap-removing position (reverse direction). During the movement of the cap-removing claw 4 towards the lower cap position, the cap-pushing lifting cylinder 17 drives the cap-pushing spacer 18 to rise, and the pushing cylinder 22 drives the pushing moving block 15 and the packaging cap U-shaped pushing head 19 to retract back to the cap-receiving position below the packaging cap conveyor slide 6.

[0035] Simultaneously, when the cap-removing claw 4 installs the flip-top packaging cap 7 onto the packaging carton 14 at the cap-removing station, the cap-removing auxiliary cylinder 11 extends, using the cap-removing positioning cap 12 to press and position the packaging carton 14 in place, preventing displacement of the carton during capping. Through cooperation with the cap-removing claw 4, the flip-top packaging cap 7 is aligned and installed onto the mounting hole of the packaging carton 14. Subsequently, the vacuum generator releases the negative pressure, and the cap suction nozzle 40 of the cap-removing claw 4 releases the flip-top packaging cap 7, completing the capping assembly. After capping, the cap-removing auxiliary cylinder 11 drives the cap-removing positioning cap 12 to retract, and the cap-removing drive motor 3 begins to rotate again, moving upwards to the cap-removing station. Then, the lower carton conveying mechanism 42 drives the capped packaging cartons 14 one by one from the capping mechanism station to the ultrasonic cap welding device 43 station for the welding of the flip-top packaging cap 7.

Claims

1. A condiment flip-top lid mechanism, comprising a lid support base (1), characterized in that: The capping support base (1) is movably equipped with a cap-removing claw (4), which is connected to the upper part of the capping support base (1) through a cap-removing transmission mechanism (2). The driving end of the cap-removing transmission mechanism (2) is connected to the output end of the cap-removing drive motor (3). A continuously conveying packaging box (14) is provided below the cap-removing claw (4), and a packaging cap conveying slide (6) is provided above the cap-removing claw (4). Several caps are provided on the packaging cap conveying slide (6). A continuously arranged flip-up packaging cover (7) is provided at the outlet of the lower end of the packaging cover conveyor slide (6). A packaging cover pushing mechanism (8) is provided at the front end of the packaging cover pushing mechanism (8) on the side where the cover-removing claw (4) is not arranged. A cover-removing auxiliary cylinder (9) is provided below the cover-removing auxiliary cylinder (9) at the position corresponding to the packaging cover installation position on the packaging carton (14). The cover-removing auxiliary cylinder (11) and the cover-removing auxiliary cylinder (9) are respectively fixedly connected to the cylinder connecting frame (13).

2. The condiment flip-top cover mechanism according to claim 1, characterized in that: The packaging cover pushing mechanism (8) includes a pushing moving block (15), a Z-shaped connecting frame (16) is fixedly provided on the upper side of the pushing moving block (15), a vertically downwardly arranged cover lifting cylinder (17) is provided at the upper end of the Z-shaped connecting frame (16), a cover lifting spacer (18) is provided at the telescopic end of the lower part of the cover lifting cylinder (17), and a packaging cover U-shaped pushing head (19) is provided at the front end of the pushing moving block (15) and directly below the cover lifting spacer (18), a packaging cover U-shaped pushing head (19) is provided on the packaging cover U-shaped pushing head (19) with an upward-facing packaging cover slot (20), and a positioning groove for cooperating with the positioning strip on the flip packaging cover (7) is provided in the packaging cover slot (20); a pushing cylinder (22) is also provided on the lower side of the pushing moving block (15), and the telescopic end of the pushing cylinder (22) is fixedly connected to the lower side of the front end of the pushing moving block (15) through a telescopic end connecting block (21).

3. The condiment flip-top cover mechanism according to claim 1, characterized in that: The cover-removing transmission mechanism (2) includes a horizontally arranged swing telescopic rod (24). The front end of the swing telescopic rod (24) is fixedly connected to the cover-removing claw (4). The rear end of the swing telescopic rod (24) is rotatably connected to the rotating rod connecting shaft (31) set in the middle of the guide back plate (23) through the rotating connecting rod (25). The rotating rod connecting shaft (31) is connected to the output end of the cover-removing drive motor (3). A vertically arranged lifting guide rail (26) is provided on the guide back plate (23) at one end near the cover-removing claw (4). A lifting sliding block (27) is slidably arranged on the lifting guide rail (26). A telescopic guide seat (28) is also provided on the lifting sliding block (27) along the extension direction of the swing telescopic rod (24). The middle part of the swing telescopic rod (24) is movably connected to the telescopic guide seat (28).

4. The condiment flip-top cover mechanism according to claim 3, characterized in that: The guide back plate (23) has a telescopic rod guide ring groove (32) on its front side where the rotating connecting rod (25) is arranged. Correspondingly, the swing telescopic rod (24) has a ring groove matching structure at the position corresponding to the guide ring groove.

5. The condiment flip-top cover mechanism according to claim 4, characterized in that: One end of the rotating link (25) is connected to the rotating rod connecting shaft (31) through the connecting shaft hinge hole (37), and the other end of the rotating link (25) is provided with an elongated hinge hole (38). The rotating rod hinge part (34) at the rear end of the swing telescopic rod (24) is hinged to the elongated hinge hole (38) on the rotating link (25) through the telescopic rod drive shaft (35). Furthermore, the end of the telescopic rod drive shaft (35) that contacts the telescopic rod guide ring groove (32) is provided with a ring groove mating roller (36).

6. The condiment flip-top cover and outer cover mechanism according to claim 3, characterized in that: The upper and lower parts of the front side of the guide back plate (23) are respectively provided with a forward rotation photoelectric switch (29) and a reverse rotation photoelectric switch (30). Correspondingly, the rear end of the swing telescopic rod (24) is provided with a photoelectric switch trigger piece (39).

7. The condiment flip-top cover mechanism according to claim 3, characterized in that: The upper and lower ends of the lifting guide rail (26) are respectively provided with sliding buffer blocks (33) for buffering the reciprocating lifting movement of the lifting sliding block (27).

8. The condiment flip-top cover mechanism according to claim 1, characterized in that: The cap-removing claw (4) is provided with a cap suction nozzle (40). The front end of the cap suction nozzle (40) is connected to the flipped cap (7) by suction. The rear end of the cap suction nozzle (40) is provided with a vacuum pipeline connection port (41). The vacuum pipeline connection port (41) is connected to the vacuum generator through a vacuum pipeline.

9. The condiment flip-top cover and outer cover mechanism according to claim 1, characterized in that: The telescopic end of the cover removal auxiliary cylinder (9) is provided with a cover removal push rod (10); the telescopic end of the cover removal auxiliary cylinder (11) is provided with a cover positioning cap (12).

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