Automatic bottle and can sealing machine

Abstract

The present application relates to a bottle and can automatic sealing machine, including a can conveying track mechanism, a sealing paper pad conveying and loading device, a cap placing device and a cap buckling device, the sealing paper pad conveying and loading device, the cap placing device and the cap buckling device are arranged in sequence along the conveying direction of the can. The sealing paper pad conveying and loading device includes a paper conveying mechanism, a glue storage box, a paper clamping and glue applying and transferring mechanism and a glue applying and paper turning mechanism, the horizontal air cylinder of the paper clamping and glue applying and transferring mechanism simultaneously links the paper taking and lifting assembly and the glue applying and lifting assembly to move synchronously, so that the paper taking and the glue applying are completed in parallel; the glue applying and paper turning mechanism turns the sealing paper pad after glue applying and lays it on the top of the can opening. The cap placing device places the cap on the top of the can with the sealing paper pad laid, and the cap buckling device buckles the elastic buckle around the cap to the bottom of the annular flange of the can opening. The present application realizes the automatic sealing operation of the whole process of the automatic paper taking, glue applying, paper turning, cap placing and cap buckling of the sealing paper pad.

Description

Technical Field

[0001] This invention relates to the field of filling and sealing equipment technology, specifically to an automatic bottle and can sealing machine. Background Technology

[0002] Currently, most food products, such as mango pomelo sago, are packaged in cans. The structure of these cans mainly consists of a can body and a lid, which are connected by snap-fit ​​mechanisms. To meet consumers' demands for personalized can appearances and to address the issue of reduced sealing reliability due to the need to replace the sealing structure when changing the appearance, an improved structure has emerged on the market. (See attached document for details.) Figure 14 , 15 As shown, a sealing gasket is laid on the surface of the tank opening. An elastic buckle is provided on the outer periphery of the cover and is fastened to the lower edge of the annular flange of the tank opening. At the same time, the adhesive-coated sealing gasket is pressed between the bottom surface of the cover and the upper edge of the annular flange of the tank opening to form a seal.

[0003] There are also corresponding assembly equipment developed for sealing food cans on the market, such as Chinese invention patent CN114933040B, which discloses a cap-laying device for a filling and sealing machine. This device includes a worktable, a conveyor belt, a storage mechanism, a clamping mechanism, and a capping mechanism. The storage mechanism and clamping mechanism work together to deliver the cap to the top of the can. The capping mechanism, through a cap-fastening assembly (including a snap-fit ​​pusher) and a lifting assembly, presses the elastic snap of the cap into the annular groove of the can to complete the fastening. However, the assembly of canned mango pomelo sago cans involves three parts: the can body, the sealing gasket, and the cap, each requiring three different assembly actions: "sealing gasket adhesive, sealing gasket sealing, and elastic snap fastening." The aforementioned existing devices can only complete the snap fastening and cannot assemble the sealing gasket; furthermore, these existing devices lack the automatic adhesive action for the sealing gasket. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic bottle and can sealing machine to address the shortcomings of the prior art, thereby solving the technical problem that the existing can sealing equipment cannot automatically complete the paper picking, glue application and installation of sealing paper gaskets, and that the paper picking and glue application actions need to be performed in steps, resulting in low sealing efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic bottle and can sealing machine, comprising a can-feeding track mechanism, a cap-laying device, and a cap-fastening device for transporting several can clamps, characterized in that: it further comprises a sealing paper pad feeding device, wherein the sealing paper pad feeding device, the cap-laying device, and the cap-fastening device are arranged sequentially along the can transport direction; the sealing paper pad feeding device comprises a paper feeding mechanism, a glue storage box, a paper clamping and gluing transfer mechanism, and a glue-applying and flipping paper-laying mechanism disposed above the can-feeding track mechanism; the paper clamping and gluing transfer mechanism comprises a truss and a transverse cylinder fixed on the truss, wherein the transverse cylinder feeds... The outlet is simultaneously linked with a suction cup paper-picking lifting assembly and a glue-applying lifting assembly arranged at intervals; the glue-applying flipping paper-discharging mechanism includes a rotary drive, a rotary arm linked to the rotary drive, and two paper receiving frames symmetrically arranged along the axis perpendicular to the rotary arm; when the suction cup paper-picking lifting assembly transports the paper from the paper feeding mechanism to the paper receiving frame of the glue-applying flipping paper-discharging mechanism, the glue-applying lifting assembly simultaneously moves to the glue storage box to apply glue; the lid-laying device is used to place the lid on top of the can body that has been covered with a sealing paper gasket; the lid-fastening device is used to fasten the elastic buckle on the outer periphery of the lid to the lower edge of the annular flange of the can opening.

[0006] Using the above technical solution, the can feeding track mechanism carries several can clamps, conveying the cans sequentially along the transport direction, allowing the cans to undergo three processes in sequence: sealing paper pad installation, lid placement, and elastic buckle fastening. In the sealing paper pad feeding device, the paper feeding mechanism supplies the cut sealing paper pads to the paper picking station. The transverse cylinder of the paper clamping and gluing transfer mechanism drives the suction cup paper picking lifting component and the gluing lifting component, which are arranged at intervals on its output end, to move horizontally synchronously. While the suction cup paper picking lifting component moves to the paper feeding mechanism to pick up the paper, the gluing lifting component moves simultaneously to the glue storage box to dip in the glue. The paper picking and gluing actions are completed in parallel time, without separate driving or waiting, eliminating the idle travel time loss between paper picking and gluing in traditional step-by-step actions. Subsequently, the paper-gripping and gluing transfer mechanism transfers the glued sealing paper gasket to the receiving rack of the gluing and flipping paper-laying mechanism. The rotary drive of the gluing and flipping paper-laying mechanism drives the rotating arm to rotate, causing the receiving rack to flip the sealing paper gasket above the tank body and lay the sealing paper gasket above the annular flange edge of the tank opening, with the glued surface facing down and adhering to the annular flange edge of the tank body. The lid-laying device places the lid on top of the tank body with the sealing paper gasket laid on it, and the lid-fastening device fastens the elastic buckles on the outer periphery of the lid to the bottom of the annular flange edge of the tank opening, so that the sealing paper gasket is pressed tightly between the bottom surface of the lid and the top of the annular flange edge to form a seal. Thus, this solution integrates the paper picking, gluing, and flipping paper-laying of the sealing paper gasket into a continuous automated process, solving the technical problem that existing equipment cannot automatically complete the gluing and mounting of the sealing paper gasket. Furthermore, by simultaneously linking the suction cup paper picking and lifting components and the gluing lifting components with the horizontal cylinder, the paper picking and gluing actions are executed synchronously within the same time, shortening the cycle time of a single station and improving the overall sealing efficiency of the machine.

[0007] The above-mentioned automatic bottle and can sealing machine can be further configured as follows: a recessed pre-forming cavity is provided in the middle of the end face of the paper receiving frame away from the rotating arm; the glue application lifting assembly includes a first lifting frame and an adhesive component fixed to the end of the first lifting frame; an adhesive ring is provided below the adhesive component; the adhesive ring is hollow inside and open at the lower end; a pre-forming plate is provided inside the adhesive ring; and a first vertical cylinder is installed on the first lifting frame to drive the pre-forming plate to reciprocate along the axial direction of the adhesive ring. The adhesive application lifting assembly also includes a first horizontal moving frame and a second vertical cylinder fixed on the first horizontal moving frame. The output end of the second vertical cylinder is linked to the first lifting frame. A first slider is linked to the side of the first lifting frame. The first slider is slidably engaged with a first slide rail fixed on the first horizontal moving frame. The output end of the horizontal cylinder is linked to the first horizontal moving frame. A second slider is linked to the side of the first horizontal moving frame. The second slider is slidably engaged with a second slide rail fixed on the truss.

[0008] Using the above technical solution, at the glue storage box, the preformed plate remains retracted inside the adhesive ring. The second vertical cylinder drives the first lifting frame to move downward along the first slide rail, immersing the lower annular end face of the adhesive ring into the glue in the glue storage box to complete the glue application. At this time, the preformed plate does not extend, avoiding the preformed plate from being contaminated with glue during the glue application process. At the paper receiving rack, the first vertical cylinder drives the preformed plate to move downward along the adhesive ring axis and extend the lower annular end face of the adhesive ring. The extension distance of the preformed plate is consistent with the depth of the preformed cavity on the end face of the paper receiving rack. Subsequently, the second vertical cylinder drives the first lifting frame to move downward as a whole. The preformed plate first contacts the sealing paper gasket and presses it into the preformed cavity, causing the middle of the sealing paper gasket to be concave downward to form a preformed shape that conforms to the shape of the can opening. Then, the lower annular end face of the adhesive ring moves downward to contact the sealing paper gasket, applying the glue that has been applied to the predetermined glue application area of ​​the sealing paper gasket. After the glue application is completed, the first lifting frame rises and resets. Therefore, this technical solution achieves the following technical effects: First, the pre-forming and gluing of the sealing paper gasket are completed sequentially in the same station and the same vertical movement stroke, eliminating the need for a separate pre-forming station and simplifying the mechanism layout; Second, the pre-forming plate and the adhesive ring adopt a coaxial nested structure. The pre-forming plate is pressed in first to make the center of the sealing paper gasket concave before the adhesive ring applies the glue, avoiding the problem of uneven glue diffusion or overflow of the pre-forming cavity when the sealing paper gasket is applied in a flat state, thus improving the accuracy of the glue application position and the matching degree of the sealing paper gasket and the can opening conformal fitting; Third, after the sealing paper gasket is pressed into the pre-forming cavity by the pre-forming plate to form a concave shape, its own rigidity increases due to the surface deformation. During the process of the paper receiving rack flipping with the rotating arm and the subsequent movement forward with the conveyor line, it is not easy to fly off or shift from the paper receiving rack due to airflow disturbance or inertia, thus improving the stability of the paper gasket conveying and the reliability of position maintenance.

[0009] The aforementioned automatic bottle and can sealing machine can be further configured as follows: the suction cup paper-picking and lifting assembly includes a second horizontal frame and a third vertical cylinder fixed on the second horizontal frame. The output end of the third vertical cylinder is linked to a second lifting frame. The end of the second lifting frame is linked to a paper-picking suction cup, and the side is linked to a sixth slider. The sixth slider is slidably engaged with a third slide rail fixed on the second horizontal frame. The side of the second horizontal frame is linked to a third slider. The third slider is slidably engaged with the second slide rail, and the second horizontal frame and the first horizontal frame move synchronously through a connecting plate.

[0010] By adopting the above technical solution, the second transverse frame is connected to the first transverse frame via a connecting plate, ensuring that the relative positions of the suction cup paper-feeding lifting assembly and the glue-applying lifting assembly remain unchanged during transverse movement. This eliminates the need for separate transverse drive sources for each assembly, simplifying the drive and control structure. The vertical movements of the suction cup paper-feeding and glue-applying components are driven independently, allowing for adaptation to differences in paper-feeding height and glue-applying height in the glue storage box. This avoids forcibly unifying both components to the same vertical stroke, improving the mechanism's adaptability to height differences at different workstations.

[0011] The aforementioned automatic bottle and can sealing machine can be further configured as follows: the paper feeding mechanism includes a paper feeding seat fixed on the frame, a paper feeding guide rail fixedly installed on the paper feeding seat, a paper feeding plate slidably installed on the paper feeding guide rail, and a paper feeding cylinder that drives the paper feeding plate to reciprocate along the paper feeding guide rail. Several vertically fixed paper stacking columns are provided above the paper feeding plate, and the several paper stacking columns enclose a paper stacking cavity for stacking sealing paper gaskets. The paper feeding seat has a paper drop hole corresponding to the paper stacking cavity. One end of the paper feeding plate is provided with a paper groove for storing a single sealing paper gasket, and the other end of the paper feeding plate is a planar sealing structure.

[0012] By employing the above technical solution, the intermittent opening and closing control of the bottom opening of the paper stacking cavity and the separate output of single paper pads are achieved through the alternating displacement of the paper tray and the planar sealing structure on the paper feeding board, using a single reciprocating drive. When the suction cup paper-picking lifting assembly picks up the sealing paper pad from the paper tray, the circumferential limiting of the paper tray on the sealing paper pad prevents the paper pad from swaying or shifting during suction cup adsorption, ensuring accurate paper picking position. Each reciprocating motion of the paper feeding board outputs only one paper pad, corresponding one-to-one with the paper picking cycle of the paper picking suction cup, avoiding stacking or paper jams caused by the simultaneous output of multiple paper pads.

[0013] The above-mentioned automatic bottle and can sealing machine can be further configured such that: both ends of the rotating arm are rotatably mounted on the frame through bearings, one end of the rotating arm is linked to a driven pulley, the driven pulley is linked to a belt, and the end of the belt is linked to a first servo motor through a driving pulley; The rotating arm is hollow inside and forms a main air chamber. The main air chamber is machined with an internal air suction hole corresponding to each paper receiving frame. The middle part of the paper receiving frame is machined with several external air suction holes corresponding to the internal air suction holes. The end of the rotating arm is connected to a rotating air pipe connector. One end of the rotating air pipe connector is connected to the main air chamber, and the other end is connected to a vacuum generator through an air pipe. Each of the internal air intake holes has a sealing groove on its outer periphery, and an O-ring is provided in the sealing groove. The two paper receiving frames are fixedly connected by several connecting rods, and the two ends of each connecting rod are detachably connected to the corresponding paper receiving frame by screws.

[0014] Using the above technical solution, the first servo motor drives the rotating arm to rotate intermittently around its axis via an active pulley, a belt, and a driven pulley. The main air chamber inside the rotating arm is connected to several external air intakes in the middle of the paper receiving holder through internal suction holes. A rotating air pipe connector at the end of the rotating arm connects the vacuum generator to the main air chamber, enabling continuous gas transmission between the stationary air pipe and the rotating main air chamber. Each internal suction hole is equipped with an O-ring seal to form an airtight seal between the contact surfaces of the paper receiving holder and the rotating arm, preventing negative pressure leakage. The two paper receiving holders are fixedly connected by several connecting rods, making them a rigid whole that rotates synchronously with the rotating arm and maintains a stable relative position. When the rotating arm needs to be flipped, the vacuum generator provides negative pressure, and the external suction holes of both paper receiving holders are in a negative pressure adsorption state, so that the sealing paper gasket is stably adsorbed on the paper receiving holder during the flipping process. When the rotating arm carrying the pre-formed and glued sealing paper gasket flips to the bottom and faces the tank clamp, the vacuum generator stops providing negative pressure, and the sealing paper gasket detaches from the paper receiving holder under the action of gravity and falls above the annular flange edge of the tank opening. After the rotating arm flips to the bottom, it does not immediately flip back to reset, but stays and waits for the upper paper receiving holder to complete the pre-forming and gluing process of the next sealing paper gasket and for the tank clamp to move forward and into place, until the next flipping command is issued, at which point the vacuum generator will provide negative pressure again. It should be noted that the rotary gas pipe joint is a rotary dynamic sealing connector, which realizes continuous gas transmission between stationary pipelines and rotating pipelines, and can be directly purchased, which is common knowledge in this field.

[0015] The aforementioned automatic bottle and can sealing machine can be further configured as follows: the can feeding track mechanism includes a first clamping transfer assembly and a second clamping transfer assembly arranged opposite to each other; an upper clamping sorting guide rail and a lower clamping sorting guide rail are arranged vertically and parallel to each other between the first clamping transfer assembly and the second clamping transfer assembly; the first clamping transfer assembly includes a liftable first lifting seat and a first pushing cylinder opposite to the feeding end of the upper clamping sorting guide rail; the first lifting seat is linked to a fourth vertical cylinder, and the fourth vertical cylinder drives the first lifting seat to reciprocate vertically between the upper clamping sorting guide rail and the lower clamping sorting guide rail; when the first lifting seat moves to be opposite to the upper clamping sorting guide rail, the first pushing cylinder can push the can clamp into the upper clamping sorting guide rail; a fourth slider is linked to the side of the first lifting seat, and the first vertical cylinder is linked to the second vertical cylinder. The four sliders are slidably engaged with a fourth slide rail fixed to the frame; the second clamping transfer assembly includes a liftable second lifting seat and a second pushing cylinder opposite to the feeding end of the lower clamping sorting guide rail. The second lifting seat is linked to a fifth vertical cylinder, which drives the second lifting seat to reciprocate vertically between the upper and lower clamping sorting guide rails. When the second lifting seat moves to be opposite to the lower clamping sorting guide rail, the second pushing cylinder can push the tank clamp into the lower clamping sorting guide rail; the second lifting seat is linked to a fifth slider on its side, which is slidably engaged with a fifth slide rail fixed to the frame; the first and second pushing cylinders are both fixed to the frame, and the frame is provided with clearance holes corresponding to the output rods of the first and second pushing cylinders.

[0016] By adopting the above technical solution, the upper and lower clamp sorting guide rails form a cyclic conveying path with upper and lower layers and opposite transport directions. After the tank clamps complete the sealing operation in the upper layer, the sealed tanks can be removed manually or by a robot and returned to the starting end in the lower layer in the reverse direction. The continuous circulation of the tank clamps can be achieved without manual handling or additional robot reversing devices, which improves the automation level and conveying efficiency of the tank delivery track mechanism. Both the upper and lower clamp sorting guide rails are fixed guide rails, which, together with the first and second push cylinders at both ends, realize the pushing and transfer of the tank clamps. There is no need to use continuously running transmission components such as conveyor belts, and the number of tank clamps in the circulation loop is a fixed value, without the need for manual intervention to increase or decrease the number of clamps.

[0017] The aforementioned automatic bottle and can sealing machine can be further configured as follows: sliding guide plates are provided on both sides of the can clamp; sliding guide grooves that are clearance-fitted with the sliding guide plates are machined in both the upper clamp sorting guide rail and the lower clamp sorting guide rail; a can placement hole is provided through the middle of the can clamp, and a can mouth contouring relief groove is provided around the outer periphery of the can placement hole; a can edge support ring higher than the can mouth contouring relief groove is provided at the upper end of the can placement hole; and a capping action relief groove is machined on both sides of the can mouth contouring relief groove.

[0018] Using the above technical solution, the tank clamp is embedded in the sliding guide groove via a sliding guide plate. The clearance fit ensures smooth sliding of the tank clamp within the guide rail while preventing swaying or derailment during movement. The tank edge support ring suspends the tank in the can placement hole, ensuring that the annular flange edge of the tank opening is fully exposed above the upper surface of the clamp, providing unobstructed operating space for the laying of the sealing gasket and the fastening of the cap. The tank opening contour clearance groove accommodates the annular flange edge, radially limiting the tank during transportation and preventing swaying or misalignment within the clamp, ensuring the alignment accuracy of subsequent sealing gasket laying and cap fastening. The cap fastening clearance groove provides a passageway through the clamp for the elastic snap-fit ​​action, eliminating the need for additional lifting strokes or redesigning the cap fastening path to avoid the clamp.

[0019] The aforementioned automatic bottle and can sealing machine can be further configured as follows: the cap placement device includes a cap placement platform and a storage mechanism installed on the worktable, and a clamping mechanism for sequentially transferring the caps from the storage mechanism to the can clamp; the storage mechanism includes a dispensing plate, a mounting plate, a picking plate, and several stacking columns perpendicular to the dispensing plate and the picking plate, the several stacking columns forming a stacking cavity for stacking caps, the dispensing plate, the mounting plate, and the picking plate are all machined with cap dropping holes corresponding to the stacking cavity, and each cap dropping hole has openings on both sides of its edges for the caps to pass through. The mounting plate has a snap-fit ​​clearance groove, and a lateral position adjustment component is linked to the mounting plate and installed on the lid-laying platform. The material-picking plate is provided with several material-blocking springs distributed at the edge of the lid-laying hole. One end of the material-blocking spring is fixedly connected to the material-picking plate by screws, and the other end of the material-blocking spring is bent into a material-blocking part. The clamping mechanism includes a second servo motor, a rotating shaft linked to the second servo motor, and a lid-picking cylinder fixed to the rotating shaft by screws. The output end of the lid-picking cylinder is linked to a lid-picking suction cup, and a longitudinal position adjustment component is linked to the worktable and installed on the frame.

[0020] By adopting the above technical solution, the snap-fit ​​clearance groove allows irregularly shaped caps with elastic snaps to fall smoothly along the cap stacking cavity without jamming, solving the problem that traditional circular material discharge holes cannot accommodate irregularly shaped caps with snaps. The material-blocking spring automatically switches between material-picking and material-stopping states, enabling intermittent single-sheet supply of caps without the need for independent solenoid valves or cylinder drives. The lateral and longitudinal position adjustment components allow the overall installation position of the material storage mechanism and cap-dispensing device to be independently adjusted in two directions, adapting to the alignment requirements of different specifications of tanks and caps without modifying the frame or changing the mounting base, thus improving the versatility and ease of changeover for different product specifications.

[0021] The aforementioned automatic bottle and can sealing machine can be further configured as follows: the capping device includes a capping frame, a capping assembly, and a material lifting assembly; the capping assembly includes a capping cylinder fixed above the capping frame, a fixed plate linked to the output end of the capping cylinder, and floating plates distributed below the fixed plate; guide posts are fixed around the perimeter of the floating plate; the fixed plate is provided with clearance-fitting guide holes corresponding to each guide post; a limiting nut with an outer diameter larger than the guide hole is connected to the upper end of each guide post; and a spring is sleeved on the outer periphery of each guide post. The spring has one end abutting against a fixed plate and the other end abutting against a floating plate. A floating cover mold is fixed below the floating plate by screws. Roller mounting blocks are symmetrically arranged on both sides of the floating cover mold. A snap-fit ​​roller is rotatably connected to the lower end of the roller mounting block. A cover block is arranged between the two roller mounting blocks. The lifting assembly includes lifting cylinders fixed on both sides of the cover frame, a lifting linkage plate linked with the output end of the lifting cylinder, and a tray installed on the lifting linkage plate. The tray is arranged vertically opposite to the floating cover mold.

[0022] By employing the above technical solution, the spring-loaded floating connection structure between the fixed plate and the floating plate enables the cap-closing assembly to have adaptive buffering capabilities during the fastening process. This absorbs travel errors caused by tank height tolerances and cap placement deviations, preventing deformation of the cap or tank due to rigid impacts. The pressing rollers use a rolling contact method to push the elastic buckle, reducing frictional resistance and wear on the buckle surface, making the cap-closing action smoother and helping to maintain consistent fastening force during long-term continuous operation. The lifting assembly lifts the tank from the tank clamp to the cap-closing height, ensuring that the cap-closing action area avoids the solid structure of the tank clamp.

[0023] The beneficial effects of this invention are as follows: By simultaneously linking the paper-picking and gluing lifting components with the suction cup in the transverse cylinder of the paper-clamping and gluing transfer mechanism, the paper-picking and gluing actions are executed synchronously within the same time window, eliminating the idle travel time loss of traditional step-by-step actions and improving sealing efficiency. Through the coaxial nested structure of the pre-forming plate and adhesive ring in the gluing lifting component, the sealing paper gasket is pre-formed before gluing, causing the center of the sealing paper gasket to be concave before gluing. This avoids the problem of uneven glue diffusion when gluing in a flat state. Simultaneously, the pre-formed paper gasket is less likely to fly off the receiving rack during the flipping and conveying process, improving the stability of the paper gasket conveying. Through the spring-floating connection structure between the fixed plate and the floating plate in the capping device, the capping process has adaptive buffering capability, absorbing the travel error caused by the height tolerance of the can and the position deviation of the cap, avoiding deformation of the cap or can due to rigid impact. The upper and lower clamp sorting guide rails, arranged in layers, form a circular conveying path. Together with the first and second clamp transfer components at both ends, the automatic circulation of the tank clamps is realized without the need for continuously operating transmission components such as conveyor belts.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the entire machine according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the sealing paper gasket feeding device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the paper feeding mechanism according to an embodiment of the present invention; Figure 4 This is an exploded view of the glue application lifting assembly according to an embodiment of the present invention; Figure 5 This is a cross-sectional schematic diagram of the adhesive application lifting assembly according to an embodiment of the present invention; Figure 6 This is an exploded view of the glue-coating and flipping paper-feeding mechanism according to an embodiment of the present invention; Figure 7 This is a cross-sectional schematic diagram of the adhesive coating and flipping paper feeding mechanism according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the can delivery track mechanism according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the tank clamp according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the lid-laying device according to an embodiment of the present invention; Figure 11 for Figure 10 Enlarged view of a portion of point A in the middle; Figure 12 This is a schematic diagram of the cover fastening mechanism according to an embodiment of the present invention; Figure 13 This is an enlarged schematic diagram of the cover-fastening mechanism in an embodiment of the present invention; Figure 14 This is a schematic diagram of the explosion state of the tank produced in an embodiment of the present invention; Figure 15 This is a partial cross-sectional schematic diagram of the assembled tank produced according to an embodiment of the present invention.

[0026] Reference numerals in the attached figures: First clamping transfer assembly 1, First lifting seat 11, First pushing cylinder 12, First vertical cylinder 13; Second clamping transfer assembly 2, Second lifting seat 21, Second pushing cylinder 22, Second vertical cylinder 23; Upper clamping sorting guide rail 3, Lower clamping sorting guide rail 4; Sliding guide plate 5, Sliding guide groove 51, Can placement hole 52, Can mouth contouring clearance groove 53, Can edge support ring 54, Cap closing action clearance groove 55; Glue storage box 6; Paper feeder 7. Paper feeding guide 71, paperboard feeding 72, paper feeding cylinder 73, paper stacking column 74, paper trough 75, paper drop hole 76; Truss 8, transverse cylinder 81, second slide rail 82, second transverse frame 83, second lifting cylinder 84, second lifting frame 85, adhesive component 86, adhesive ring 861, preformed plate 862, third lifting cylinder 863; first transverse frame 9, first lifting cylinder 91, first lifting frame 92, paper pick-up suction cup 93, connecting plate 94; rotary drive component 1 0. Rotating arm 101, paper receiving holder 102, pre-forming cavity 103, driven pulley 104, belt 105, connecting rod 106, first servo motor 107, main air chamber 108, inner suction hole 109, outer suction hole 110, rotary air pipe connector 111, sealing groove 112, O-ring seal 113; snap-fit ​​clearance groove 114, lateral position adjustment assembly 115, material stop spring 116, material stop part 117, mounting plate 118, material picking plate 119. Stacking column 1191, lid dropping hole 1192; rotating shaft 121, lid picking cylinder 122, lid picking suction cup 123, second servo motor 124; lid clamping cylinder 131, fixing plate 132, floating plate 133, guide column 134, tray 135, limit nut 136, spring 137, floating lid clamping mold 138, roller mounting block 139, clamping roller 140, lid clamping block 141, lifting cylinder 142, lifting linkage plate 143, lid clamping frame 144. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 15The automatic bottle and can sealing machine shown includes a can feeding track mechanism, a sealing paper gasket feeding device, a cap placement device, and a cap fastening device. These three devices are arranged sequentially on the frame along the can transport direction. The can feeding track mechanism transports several can clamps. The can clamps carry the cans and sequentially pass through the sealing paper gasket feeding device to complete the paper feeding, gluing, and laying of the sealing paper gasket; through the cap placement device to place the cap; and through the cap fastening device to complete the elastic snap-fit ​​of the cap with the annular flange edge of the can opening.

[0029] The can-feeding track mechanism includes a first clamp transfer assembly 1 and a second clamp transfer assembly 2 arranged opposite to each other. An upper clamp sorting guide rail 3 and a lower clamp sorting guide rail 4 are arranged vertically and parallel to each other between the first clamp transfer assembly 1 and the second clamp transfer assembly 2. The first clamp transfer assembly 1 includes a liftable first lifting seat 11 and a first push cylinder 12 opposite to the feeding end of the upper clamp sorting guide rail 3. The first lifting seat 11 is connected to a first vertical cylinder 13, which drives the first lifting seat 11 to reciprocate vertically between the upper clamp sorting guide rail 3 and the lower clamp sorting guide rail 4. A first slider is connected to the side of the first lifting seat 11, and the first slider is slidably engaged with a first slide rail fixed on the frame. The second clamping transfer assembly 2 includes a liftable second lifting seat 21 and a second pushing cylinder 22 opposite to the feeding end of the lower clamping sorting guide rail 4. The second lifting seat 21 is connected to a second vertical cylinder 23, which drives the second lifting seat 21 to reciprocate vertically between the upper clamping sorting guide rail 3 and the lower clamping sorting guide rail 4. A second slider is connected to the side of the second lifting seat 21, and the second slider is slidably fitted with a second slide rail fixed on the frame. Both the first pushing cylinder 12 and the second pushing cylinder 22 are fixed on the frame, and the frame is provided with clearance holes corresponding to the output rods of the first pushing cylinder 12 and the second pushing cylinder 22, respectively. Sliding guide plates 5 are provided on both sides of the tank clamp. Sliding guide grooves 51 that are clearance-fitted with the sliding guide plates 5 are machined in both the upper clamping sorting guide rail 3 and the lower clamping sorting guide rail 4, so that the tank clamp can slide smoothly along the extension direction of the sorting guide rail and is not prone to swaying. A can placement hole 52 is provided through the middle of the can clamp, which is used to accommodate the can and place it through the clamp at the lower work station. A can opening contour relief groove 53 is provided around the outer periphery of the can placement hole 52. Its shape is adapted to the shape of the annular flange edge of the can opening, and it is used to accommodate the annular flange edge of the can opening. A can edge support ring 54 is provided at the upper end of the can placement hole 52, which is higher than the can opening contour relief groove 53. The inner diameter of the can edge support ring 54 is smaller than the outer diameter of the annular flange edge of the can opening, and it supports the annular flange edge from below, so that the can is suspended in the can placement hole 52. On both sides of the can opening contour relief groove 53, there are cover-closing action relief grooves 55 that penetrate the can clamp, providing vertical clearance space for the closing action of the pressing roller in the cover-closing device.

[0030] The sealing paper gasket feeding device includes a paper feeding mechanism, a glue storage box 6, a paper clamping and gluing transfer mechanism, and a glue-applying and flipping paper-discharging mechanism. The paper feeding mechanism includes a paper feeding base 7 fixed to the frame, a paper feeding guide rail 71 fixedly mounted on the paper feeding base 7, a paper feeding plate 72 slidably mounted on the paper feeding guide rail 71, and a paper feeding cylinder 73 that drives the paper feeding plate 72 to reciprocate along the paper feeding guide rail 71. Above the paper feeding plate 72 are several vertically fixed paper stacking columns 74 on the paper feeding base 7, which together form a paper stacking cavity for stacking sealing paper gaskets. The paper feeding base 7 has a paper drop hole 76 corresponding to the paper stacking cavity. One end of the paper feeding plate 72 has a paper groove 75 for storing a single sealing paper gasket, and the other end is a flat sealing structure. When the paper feeder 72 moves to align the paper tray 75 with the paper drop hole 76 directly below the paper stacking cavity, the bottommost sealing paper pad in the paper stacking cavity falls into the paper tray 75 by gravity to achieve single-sheet paper feeding; when the paper feeder 72 moves in the opposite direction to align the planar sealing structure with the paper stacking cavity, the planar sealing structure blocks the paper drop hole 76, preventing the remaining sealing paper pads in the paper stacking cavity from continuing to fall.

[0031] The paper clamping and gluing transfer mechanism includes a truss 8 and a transverse cylinder 81 fixed on the truss 8. The output end of the transverse cylinder 81 is simultaneously linked to a suction cup paper-picking lifting assembly and a glue-applying lifting assembly arranged at intervals, so that the two move laterally synchronously along the truss 8. The suction cup paper-picking lifting assembly includes a first transverse frame 9 and a first lifting cylinder 91 fixed on the first transverse frame 9. The output end of the first lifting cylinder 91 is connected to a first lifting frame 92. The end of the first lifting frame 92 is connected to a paper-picking suction cup 93 for picking up the sealing paper pad. A first slider is connected to the side of the first lifting frame 92, and the first slider is slidably engaged with a first slide rail fixed on the first transverse frame 9. A second slider is connected to the side of the first transverse frame 9, and the second slider is slidably engaged with a second slide rail 82 fixed on the truss 8. The first transverse frame 9 and the second transverse frame 83 are fixedly connected by a connecting plate 94 so that the two move synchronously. The adhesive application lifting assembly includes a second transverse frame 83 and a second lifting cylinder 84 fixed on the second transverse frame 83. The output end of the second lifting cylinder 84 is connected to a second lifting frame 85. An adhesive component 86 is fixed to the end of the second lifting frame 85. A third slider is connected to the side of the second lifting frame 85, and the third slider is slidably engaged with a third slide rail fixed on the second transverse frame 83. A fourth slider is connected to the side of the second transverse frame 83, and the fourth slider is slidably engaged with a second slide rail 82 fixed on the truss 8. The output end of the transverse cylinder 81 is linked with the second transverse frame 83. An adhesive ring 861 is provided below the adhesive component 86. The adhesive ring 861 is hollow inside and open at the lower end. A preformed plate 862 is provided inside the adhesive ring 861. A third lifting cylinder 863 is installed on the second lifting frame 85 to drive the preformed plate 862 to reciprocate along the axial direction of the adhesive ring 861. At the glue storage box 6, the preformed plate 862 remains retracted inside the adhesive ring 861. The second lifting cylinder 84 drives the second lifting frame 85 to move downward, immersing the lower annular end face of the adhesive ring 861 in the glue solution. At the paper receiving frame, the third lifting cylinder 863 drives the preformed plate 862 to extend beyond the lower annular end face of the adhesive ring 861, with the extension distance matching the thickness of the preformed cavity of the paper receiving frame. Subsequently, the second lifting cylinder 84 drives the second lifting frame 85 to move downward as a whole. The preformed plate 862 first contacts the sealing paper gasket and presses it into the preformed cavity, causing the center of the sealing paper gasket to be recessed and preformed. The lower annular end face of the adhesive ring 861 then contacts the sealing paper gasket to complete the glue application.

[0032] The adhesive-coating and flipping paper-feeding mechanism is located above the can-feeding track mechanism. It includes a rotary drive 10 and a rotary arm 101 linked to the rotary drive 10. Both ends of the rotary arm 101 are rotatably mounted on the frame via bearings. Two paper receiving holders 102 are symmetrically arranged along an axis perpendicular to the rotary arm 101. A recessed pre-forming cavity 103 is formed in the middle of the end face of the paper receiving holder 102 away from the rotary arm 101. One end of the rotary arm 101 is connected to a driven pulley 104, which is connected to a driving pulley via a belt 105. The driving pulley is connected to a first servo motor 107. The rotating arm 101 is hollow inside, forming a main air chamber 108. Each paper tray 102 has an internal suction hole 109 machined into the main air chamber 108. The middle of each paper tray 102 has several external suction holes 110 machined corresponding to the internal suction holes 109. A rotary air pipe connector 111 is connected to the end of the rotating arm 101. One end of the rotary air pipe connector 111 communicates with the main air chamber 108, and the other end is connected to a vacuum generator via an air pipe. A sealing groove 112 is machined on the outer periphery of each internal suction hole 109, and an O-ring seal 113 is installed in the sealing groove 112 to prevent negative pressure leakage. Two paper trays 102 are fixedly connected by several connecting rods 106, and both ends of each connecting rod 106 are detachably connected to the corresponding paper tray 102 by screws. When the rotating arm 101 needs to be flipped, the vacuum generator provides negative pressure, and the external suction holes 110 of the two paper receiving holders 102 are in a negative pressure adsorption state, so that the sealing paper gasket is stably adsorbed on the paper receiving holder 102; when the rotating arm 101 carrying the pre-formed and glued sealing paper gasket flips to face the tank clamp from below, the vacuum generator stops providing negative pressure, and the sealing paper gasket falls off the paper receiving holder 102 under the action of gravity and falls above the annular flange edge of the tank opening.

[0033] The lid-laying device includes a lid-laying platform, a storage mechanism mounted on the platform, and a clamping mechanism for sequentially transferring lids from the storage mechanism to the tank clamps. The storage mechanism includes a discharge plate, a mounting plate 118, and a retrieving plate 119, as well as several stacking columns 1191 perpendicular to the discharge and retrieving plates 119. These columns form a stacking cavity for storing lids. The discharge plate, mounting plate 118, and retrieving plate 119 are each machined with a lid-dropping hole 1192 corresponding to the stacking cavity. Each lid-dropping hole 1192 has two side edges with latching grooves 114 for the lid to pass through, allowing irregularly shaped lids with elastic latches to pass smoothly through the hole without jamming. The mounting plate 118 is connected to a lateral position adjustment assembly 115 mounted on the lid-laying platform, used to adjust the relative position of the storage mechanism with respect to the clamping mechanism in the direction parallel to the conveyor belt. The material-receiving plate 119 is equipped with several retaining springs 116 distributed at the edges of the cap-dropping holes 1192. One end of the retaining spring 116 is fixedly connected to the material-receiving plate 119 by screws, and the other end is bent into a retaining part 117. In its natural state, the retaining part 117 applies an elastic blocking force to the caps in the cap-stacking cavity to prevent the caps from slipping off by themselves. When the cap-receiving suction cup 123 picks up the bottom cap, the cap overcomes the elastic blocking force of the retaining springs 116 and is taken out. The clamping mechanism includes a second servo motor 124, a rotating shaft 121 linked to the second servo motor 124, and a cap-receiving cylinder 122 fixed to the rotating shaft 121 by screws. The output end of the cap-receiving cylinder 122 is connected to the cap-receiving suction cup 123. The worktable is connected to a longitudinal position adjustment component mounted on the frame, which is used to adjust the overall position of the cap-dropping device in the direction perpendicular to the conveyor belt.

[0034] The cover-fastening device includes a cover-fastening frame 144, a cover-fastening assembly, and a material-lifting assembly. The cover-fastening assembly includes a cover-fastening cylinder 131 fixed above the cover-fastening frame 144. The output end of the cover-fastening cylinder 131 is connected to a fixed plate 132, and a floating plate 133 is disposed below the fixed plate 132. Guide posts 134 are fixed around the floating plate 133. The fixed plate 132 is provided with guide holes with clearance fit for each guide post 134. A limiting nut 136 with an outer diameter larger than the guide hole is connected to the upper end of the guide post 134. A spring 137 is sleeved on the outer periphery of the guide post 134. One end of the spring 137 abuts against the fixed plate 132, and the other end abuts against the floating plate 133, so that an elastic floating connection is formed between the fixed plate 132 and the floating plate 133, providing adaptive buffering capability. A floating capping mold 138 is fixed below the floating plate 133 by screws. Roller mounting blocks 139 are symmetrically arranged on both sides of the floating capping mold 138. A snap-fit ​​roller 140 is rotatably connected to the lower end of the roller mounting block 139. A capping block 141 is arranged between the two roller mounting blocks 139. The lifting assembly includes lifting cylinders 142 fixed on both sides of the capping frame 144, a lifting linkage plate 143 linked to the output end of the lifting cylinder 142, and a tray 135 installed on the lifting linkage plate 143. The tray 135 is arranged vertically opposite to the floating capping mold 138.

[0035] The working principle of this embodiment is as follows: The empty can clamp is transported by the first clamp transfer assembly 1 to the upper clamp sorting guide rail 3. The first lifting seat 11 carries the empty can clamp and rises to the feeding end height of the upper clamp sorting guide rail 3. The first pushing cylinder 12 pushes the can clamp into the upper clamp sorting guide rail 3, and the can clamp moves along the upper clamp sorting guide rail 3 towards the second clamp transfer assembly 2. During the movement, the paper feeding cylinder 73 of the paper feeding mechanism drives the paper feeding board 72 to slide along the paper feeding guide rail 71, so that the paper trough 75 moves to directly below the paper stacking cavity. The bottom sealing paper pad in the paper stacking cavity falls into the paper trough 75. The paper feeding board 72 moves in the opposite direction to block the paper drop hole 76 with the planar sealing structure. The paper trough 75 carries a single sealing paper pad and moves out to the paper picking station. The first lifting cylinder 91 of the suction cup paper picking lifting assembly drives the first lifting frame 92 to descend. After the paper picking suction cup 93 adsorbs the sealing paper pad, it rises and resets. Simultaneously, the glue application lifting assembly moves laterally to the glue storage box 6 in sync with the second transverse frame 83. The second lifting cylinder 84 drives the second lifting frame 85 to descend, and the lower annular end face of the adhesive ring 861 is immersed in the glue and then rises to its original position. The transverse cylinder 81 drives the first transverse frame 9 and the second transverse frame 83 to move laterally in sync. The suction cup paper-picking lifting assembly transports the sealing paper pad to the paper receiving rack 102 of the glue application flipping paper-dispensing mechanism. The glue application lifting assembly moves synchronously above the paper receiving rack 102. At the glue application lifting assembly, the third lifting cylinder 863 drives the pre-forming plate 862 to extend beyond the lower annular end face of the adhesive ring 861. The second lifting cylinder 84 drives the second lifting frame 85 to move downward as a whole. The pre-forming plate 862 presses the sealing paper pad into the pre-forming cavity 103, causing its center to be recessed and pre-formed. The lower annular end face of the adhesive ring 861 then contacts the sealing paper pad to complete the glue application. The first servo motor 107 drives the rotating arm 101 to rotate via the driving pulley, belt 105, and driven pulley 104. The vacuum generator provides negative pressure, causing the sealing paper gasket to be adsorbed onto the paper receiving rack 102. The rotating arm 101 rotates 180° to transport the glued sealing paper gasket to the top of the tank. The vacuum generator stops applying negative pressure, and the sealing paper gasket falls to the top of the annular flange edge of the tank opening. The second servo motor 124 of the cap placement device drives the rotating shaft 121 to rotate. The cap removal cylinder 122 drives the cap removal suction cup 123 to descend and pick up the cap at the bottom of the storage mechanism, then rises. The rotating shaft 121 rotates to transfer the cap to the top of the tank. The cap removal suction cup 123 releases the cap, allowing it to fall to the top of the tank with the sealing paper gasket already laid on it. The tank clamp, carrying the tank with the lid, continues to move along the upper clamp sorting guide rail 3 to the lid fastening device. The lifting cylinder 142 drives the lifting linkage plate 143 to rise, and the pallet 135 lifts the tank from inside the tank clamp, so that the annular flange edge of the tank opening is higher than the upper surface of the tank clamp.The capping cylinder 131 drives the fixed plate 132 to move downwards. The spring 137 provides elastic cushioning between the fixed plate 132 and the floating plate 133. The floating capping mold 138 moves downwards accordingly. The capping block 141 first contacts the upper surface of the cap and presses the cap down to above the annular flange edge of the tank opening. The pressing roller 140 contacts the elastic buckle on the outer periphery of the cap and pushes the elastic buckle outwards. After the elastic buckle passes the annular flange edge, it springs back and locks itself below the annular flange edge, completing the capping. After the capping is completed, the capping cylinder 131 and the lifting cylinder 142 reset synchronously, and the tank falls back into the tank clamp. The tank clamp moves to the end of the upper clamp sorting guide rail 3. The second lifting seat 21 receives the sealed tank clamp and descends to the feeding end height of the lower clamp sorting guide rail 4. The second pushing cylinder 22 pushes the empty tank clamp into the lower clamp sorting guide rail 4. The tank clamp returns to the first clamp transfer assembly 1 along the lower clamp sorting guide rail 4. The first lifting seat 11 receives the empty tank clamp and rises to the feeding end height of the upper clamp sorting guide rail 3, starting the next cycle.

Claims

1. An automatic bottle and can sealing machine, comprising a can-feeding track mechanism for transporting several can clamps, a cap-laying device, and a cap-fastening device, characterized in that: It also includes a sealing paper gasket feeding device, wherein the sealing paper gasket feeding device, the lid placement device, and the lid fastening device are arranged sequentially along the tank transport direction; The sealing paper gasket feeding device includes a paper feeding mechanism, a glue storage box, a paper clamping and gluing transfer mechanism, and a glue-applying and flipping paper-releasing mechanism located above the can-feeding track mechanism. The paper clamping and gluing transfer mechanism includes a truss and a transverse cylinder fixed on the truss. The output end of the transverse cylinder is simultaneously linked to a suction cup paper picking and lifting assembly and a glue applying and lifting assembly arranged at intervals. The adhesive-coating and flipping paper feeding mechanism includes a rotary drive, a rotary arm linked to the rotary drive, and two paper receiving frames symmetrically arranged along the axis perpendicular to the rotary arm. When the suction cup paper-picking and lifting assembly transports the paper from the paper feeding mechanism to the paper receiving rack of the glue-applying and flipping paper-dispensing mechanism, the glue-applying and lifting assembly simultaneously moves to the glue storage box to apply glue; the lid-laying device is used to place the lid on top of the can body that has been covered with a sealing paper pad; the lid-fastening device is used to fasten the elastic buckle on the outer periphery of the lid body to the lower edge of the annular flange of the can body opening.

2. The automatic bottle and jar sealing machine according to claim 1, characterized in that: The paper receiving holder has a recessed pre-forming cavity in the middle of the end face away from the rotating arm. The glue application lifting assembly includes a first lifting frame and an adhesive component fixed to the end of the first lifting frame. An adhesive ring is provided below the adhesive component. The adhesive ring is hollow inside and open at the lower end. A pre-forming plate is provided inside the adhesive ring. A first vertical cylinder is installed on the first lifting frame to drive the pre-forming plate to reciprocate along the axial direction of the adhesive ring. The adhesive application lifting assembly also includes a first horizontal moving frame and a second vertical cylinder fixed on the first horizontal moving frame. The output end of the second vertical cylinder is linked to the first lifting frame. A first slider is linked to the side of the first lifting frame. The first slider is slidably engaged with a first slide rail fixed on the first horizontal moving frame. The output end of the horizontal cylinder is linked to the first horizontal moving frame. A second slider is linked to the side of the first horizontal moving frame. The second slider is slidably engaged with a second slide rail fixed on the truss.

3. The automatic bottle and jar sealing machine according to claim 2, characterized in that: The suction cup paper-picking lifting assembly includes a second horizontal frame and a third vertical cylinder fixed on the second horizontal frame. The output end of the third vertical cylinder is linked to the second lifting frame. The end of the second lifting frame is linked to a paper-picking suction cup, and the side is linked to a sixth slider. The sixth slider is slidably engaged with a third slide rail fixed on the second horizontal frame. The side of the second horizontal frame is linked to the third slider, which is slidably engaged with the second slide rail. The second horizontal frame and the first horizontal frame move synchronously through a connecting plate.

4. The automatic bottle and jar sealing machine according to claim 3, characterized in that: The paper feeding mechanism includes a paper feeding base fixed to the frame, a paper feeding guide rail fixedly installed on the paper feeding base, a paper feeding plate slidably installed on the paper feeding guide rail, and a paper feeding cylinder that drives the paper feeding plate to reciprocate along the paper feeding guide rail. Several vertically fixed paper stacking columns are arranged above the paper feeding plate, and the several paper stacking columns enclose a paper stacking cavity for stacking sealing paper gaskets. The paper feeding base has a paper drop hole corresponding to the paper stacking cavity. One end of the paper feeding plate is provided with a paper groove for storing a single sealing paper gasket, and the other end of the paper feeding plate is a planar sealing structure.

5. The automatic bottle and jar sealing machine according to claim 1, characterized in that: The two ends of the rotating arm are rotatably mounted on the frame via bearings. One end of the rotating arm is linked to a driven pulley, which is linked to a belt. The end of the belt is linked to a first servo motor via a driving pulley. The rotating arm is hollow inside and forms a main air chamber. The main air chamber is machined with an internal air suction hole corresponding to each paper receiving frame. The middle part of the paper receiving frame is machined with several external air suction holes corresponding to the internal air suction holes. The end of the rotating arm is connected to a rotating air pipe connector. One end of the rotating air pipe connector is connected to the main air chamber, and the other end is connected to a vacuum generator through an air pipe. Each of the internal air intake holes has a sealing groove on its outer periphery, and an O-ring is provided in the sealing groove. The two paper receiving frames are fixedly connected by several connecting rods, and the two ends of each connecting rod are detachably connected to the corresponding paper receiving frame by screws.

6. The automatic bottle and jar sealing machine according to claim 1, characterized in that: The can delivery track mechanism includes a first clamp transfer assembly and a second clamp transfer assembly arranged opposite to each other. An upper clamp sorting guide rail and a lower clamp sorting guide rail are arranged in parallel between the first clamp transfer assembly and the second clamp transfer assembly. The first clamp transfer assembly includes a liftable first lifting seat and a first pushing cylinder opposite to the feeding end of the upper clamp sorting guide rail. The first lifting seat is linked to a fourth vertical cylinder, which drives the first lifting seat to reciprocate vertically between the upper clamp sorting guide rail and the lower clamp sorting guide rail. When the first lifting seat moves to be opposite to the upper clamp sorting guide rail, the first pushing cylinder can push the tank clamp into the upper clamp sorting guide rail. A fourth slider is linked to the side of the first lifting seat, and the fourth slider is slidably engaged with a fourth slide rail fixed on the frame. The second clamp transfer assembly includes a liftable second lifting seat and a second push cylinder opposite to the feeding end of the lower clamp sorting guide rail. The second lifting seat is linked to a fifth vertical cylinder, which drives the second lifting seat to reciprocate vertically between the upper and lower clamp sorting guide rails. When the second lifting seat moves to be opposite the lower clamp sorting guide rail, the second push cylinder can push the tank clamp into the lower clamp sorting guide rail. A fifth slider is linked to the side of the second lifting seat, and the fifth slider is slidably engaged with a fifth slide rail fixed on the frame. Both the first and second push cylinders are fixed on the frame, and the frame is provided with clearance holes corresponding to the output rods of the first and second push cylinders, respectively.

7. The automatic bottle and jar sealing machine according to claim 6, characterized in that: The tank clamp is provided with sliding guide plates on both sides. The upper clamp sorting guide rail and the lower clamp sorting guide rail are both machined with sliding guide grooves that fit with the sliding guide plates with clearance. The tank clamp is provided with a can placement hole in the middle and a can mouth conforming relief groove around the outer periphery of the can placement hole. A can edge support ring higher than the can mouth conforming relief groove is provided at the upper end of the can placement hole. The can mouth conforming relief groove is machined with a cover-fastening action relief groove through the tank clamp on both sides.

8. The automatic bottle and jar sealing machine according to claim 1, characterized in that: The lid-laying device includes a lid-laying platform and a storage mechanism installed on the workbench, as well as a clamping mechanism for sequentially transferring the lids at the storage mechanism to the tank clamps. The material storage mechanism includes a feeding plate, a mounting plate, a picking plate, and several stacking columns perpendicular to the feeding plate and the picking plate. The stacking columns enclose a stacking cavity for stacking the cover. The feeding plate, mounting plate, and picking plate are all machined with drop holes corresponding to the stacking cavity. Each drop hole has a buckle clearance groove on both sides for the cover to be snapped through. The mounting plate is linked to a lateral position adjustment component installed on the feeding platform. The material taking plate is provided with a number of material blocking springs distributed at the edge of the cover hole. One end of the material blocking spring is fixedly connected to the material taking plate by screws, and the other end of the material blocking spring is bent into a material blocking part. The clamping mechanism includes a second servo motor, a rotating shaft linked to the second servo motor, and a cap-removing cylinder fixed to the rotating shaft by screws. The output end of the cap-removing cylinder is linked to a cap-removing suction cup, and the worktable is linked to a longitudinal position adjustment component installed on the frame.

9. The automatic bottle and jar sealing machine according to claim 8, characterized in that: The cover fastening device includes a cover fastening frame, a cover fastening assembly, and a material lifting assembly; The cover assembly includes a cover-fastening cylinder fixed above the cover-fastening frame, a fixed plate linked to the output end of the cover-fastening cylinder, and floating plates distributed below the fixed plate. Guide posts are fixed around the floating plate. The fixed plate is provided with guide holes with clearance fit for each guide post. A limiting nut with an outer diameter larger than the guide hole is connected to the upper end of the guide post. A spring is sleeved on the outer periphery of the guide post. One end of the spring abuts against the fixed plate and the other end abuts against the floating plate. A floating cover mold is fixed below the floating plate by screws. Roller mounting blocks are symmetrically arranged on both sides of the floating cover mold. A pressing roller is rotatably connected to the lower end of the roller mounting block. A cover block is arranged between the two roller mounting blocks. The lifting assembly includes lifting cylinders fixed on both sides of the cover frame, a lifting linkage plate linked to the output end of the lifting cylinders, and a tray installed on the lifting linkage plate. The tray is arranged vertically opposite to the floating cover mold.

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