Cover buckling and cover film placing device for assembling tea capsules

Abstract

The invention discloses a cover buckling and cover film placing device for tea capsule assembling. The device comprises a production line conveying belt. A cover buckling part, a film containing part and a heat sealing part are sequentially arranged in the conveying direction of the production line conveying belt. The film placement part comprises a cover film storage structure and a film suction structure, a cover film in a sheet film form is stored in the cover film storage structure, the film suction structure comprises a liftable and rotatable cover film suction cup, and the cover film suction cup sucks and places the cover film through opening and closing of vacuum suction; the cover film suction cup can suck the cover film in the cover film storage structure and can place the cover film on the cup opening edge face of the capsule cup. The problem of film deviation of an existing manual mode and the problem of poor zigzag shape of the edge of a covering film of a rolled film on-line punching mode are solved, meanwhile, the automation degree is improved, and the production efficiency is improved. The capsule filling device is simple and easy to implement, low in manufacturing cost and capable of being widely applied to various production lines for capsule filling.

Description

Technical Field

[0001] The invention relates to the technical field of tea filling equipment, in particular to a cover buckling and cover film placing device for assembling tea capsules. Background Art

[0002] Capsule drinks are popular because they are hygienic and convenient, and can be used with a brewing machine to quickly produce a cup of excellent-tasting drink. Existing capsules are mainly composed of a capsule cup, a shower cover, a cover film, and contents (such as tea and coffee). After the contents are filled into the main body of the cup, the shower cover is generally placed on the step on the inner edge of the capsule cup, and the cover film is generally heat-sealed and welded to the end face of the edge of the capsule cup. Among them, the cover film is generally manually placed on the edge of the capsule cup for welding, which has low production efficiency and is easy to be placed off-center if manual control is not good. Another way is to punch the roll film directly into sheet film online and then weld it. Although the degree of automation is high, the edge of the sheet film after online punching is prone to serration, which damages the appearance quality of the cover film.

[0003] Therefore, the inventor, relying on his many years of experience and practice in related industries, proposes a cover buckling and cover film placement device for assembling tea capsules to overcome the defects of the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a device for snapping and placing a cover film for assembling tea capsules, which solves the problem of film deviation in the existing manual method and the problem of jagged edges of the cover film in the online film punching method, and at the same time, improves the degree of automation, thereby improving production efficiency. The present invention is simple and easy to implement, has a low manufacturing cost, and can be widely used in various production lines for capsule filling.

[0005] The object of the present invention is achieved in this way. A device for buckling a cap and placing a cover film for assembling a tea capsule comprises a production line conveyor belt; a buckling portion for buckling a shower cap to a capsule cup, a film placing portion for placing a cover film on the cup edge of the capsule cup after buckling the cap, and a heat sealing portion for heat-sealing the cover film on the cup edge of the capsule cup are sequentially arranged along the conveying direction of the production line conveyor belt;

[0006] The film placement portion includes a cover film storage structure and a film suction structure. The cover film storage structure stores a cover film in the form of a sheet film. The film suction structure includes a cover film suction cup that can be raised and lowered and rotated. The cover film suction cup sucks and places the cover film by opening and closing vacuum suction. The cover film suction cup can suck the cover film in the cover film storage structure and place the cover film on the edge of the capsule cup.

[0007] In a preferred embodiment of the present invention, the film placing part further includes a cylinder structure for driving the cover film suction cup to rise and fall.

[0008] In a preferred embodiment of the present invention, the film suction structure also includes a swivel, a rotating shaft and an air suction valve, an air suction channel is arranged in the rotating shaft, the first end of the air suction channel is open, and the second end is closed, the cover film suction cup is arranged close to the second end of the air suction channel and is connected thereto; the air suction valve is connected to the first end of the air suction channel; the swivel is fixedly sleeved on the end of the rotating shaft away from the cover film suction cup; the rotating shaft is rotatably connected to the cylinder structure, and the cylinder structure drives the rotating shaft to rise and fall to drive the cover film suction cup and the swivel to rise and fall, and the swivel can drive the rotating shaft to rotate during the lifting process so that the opening of the cover film suction cup rotates to the cover film storage structure.

[0009] In a preferred embodiment of the present invention, the film placing part also includes a vertically arranged rotating back plate, a rotating shaft limiting groove is arranged on the rotating back plate, a rotating shaft slide is arranged on one side of the rotating back plate, a sliding block that can slide along the rotating shaft slide is provided on the rotating shaft slide, the rotating shaft rotates through the sliding block and the rotating shaft limiting groove, and the sliding block is connected to the cylinder structure; a rotating column is also arranged on the rotating back plate, and the rotating body rotates along the circumference of the rotating column during the lifting process to drive the rotating shaft and the covering film suction cup to rotate.

[0010] In a preferred embodiment of the present invention, the slider is connected to a bearing seat, bearings are arranged at both ends of the bearing seat, and the rotating shaft rotates through the bearings to be rotatably connected to the slider.

[0011] In a preferred embodiment of the present invention, the cylinder structure includes a cylinder, a pneumatic push rod is slidably inserted into the cylinder, and a cylinder blowing valve and a cylinder suction valve are respectively arranged at both ends of the cylinder; a push block extension rod is connected to the pneumatic push rod, and the push block extension rod is connected to the bearing seat.

[0012] In a preferred embodiment of the present invention, the swivel comprises a semicircular body, a first groove is arranged inwardly at the center of the chord side of the semicircular body, a symmetrical arc track is arranged inwardly from the chord side on the semicircular body, and a second groove is arranged inwardly on the arc side of the semicircular body at a position opposite to the first groove;

[0013] A rotating column is respectively arranged at both ends of the rotating shaft limiting slide groove, and the second groove can be clamped on the rotating columns at both ends of the rotating shaft limiting slide groove to limit the rotating body; at least one rotating column is arranged on one side of the rotating shaft limiting slide groove, and the arc track or the first groove can rotate along the rotating column on one side of the rotating shaft limiting slide groove to guide the rotation of the rotating body.

[0014] In a preferred embodiment of the present invention, the cover film storage structure includes a cover film storage tube and a cover film baffle, and multiple cover films are overlapped and stacked in the cover film storage tube; the cover film storage tube is vertically arranged and has openings at both ends, and the cover film baffle is arranged at the bottom opening of the cover film storage tube to prevent the cover film from falling; the cover film suction cup rises and its opening rotates to the bottom end of the cover film storage tube to absorb the cover film in the cover film storage tube.

[0015] In a preferred embodiment of the present invention, the cover buckle part includes a first shower cover suction cup, a second shower cover suction cup and a shower cover turntable, the first shower cover suction cup and the second shower cover suction cup are synchronously lifted and lowered and moved horizontally; the second shower cover suction cup absorbs and transfers the shower cover outside the production line conveyor belt to the shower cover turntable, and the shower cover turntable rotates the shower cover thereon to a set angle to match the placement direction of the capsule cup on the production line conveyor belt; the first shower cover suction cup absorbs and transfers the shower cover after rotation by the shower cover turntable to the capsule cup on the production line conveyor belt.

[0016] In a preferred embodiment of the present invention, the first shower cover suction cup and the second shower cover suction cup are respectively connected to two sides of a first lifting rod, the first lifting rod is connected to a lifting rod connecting block, and the lifting rod connecting block can move horizontally and perpendicular to the production line conveyor belt.

[0017] In a preferred embodiment of the present invention, a connection block slide is fixedly provided on one side of the lifting rod connection block, and a first horizontal push-pull rod is connected to the lifting rod connection block, and the first horizontal push-pull rod pushes the lifting rod connection block to move horizontally along the connection block slide.

[0018] In a preferred embodiment of the present invention, the cover buckle portion includes a shower cover material arrangement tray, a shower cover conveyor belt is arranged below the shower cover material arrangement tray, one end of the shower cover conveyor belt is provided with a push-pull connecting block for receiving the shower cover, the push-pull connecting block can move horizontally to move the shower cover to the shower cover suction position, and the second shower cover suction cup sucks the shower cover at the shower cover suction position.

[0019] In a preferred embodiment of the present invention, the push-pull connection block is connected to a second horizontal push-pull rod, and the second horizontal push-pull rod pushes the push-pull connection block to move horizontally.

[0020] In a preferred embodiment of the present invention, the heat sealing portion comprises a heat sealing head, and the heat sealing head is connected to a second lifting rod capable of driving the heat sealing head to rise and fall.

[0021] As described above, the buckle cover and cover film placement device for tea capsule assembly of the present invention has the following beneficial effects:

[0022] The present invention solves the problem of film deviation in the existing manual method and the problem of jagged edges of the cover film in the online punching method of the roll film; the cover film suction cup moves and rotates to a predetermined position of the cover film storage structure to absorb the cover film in the form of a sheet film, and then rotates in the opposite direction to move back to the cover film position to place the cover film, thereby realizing automatic absorption and placement of the cover film at a predetermined position; the cover film suction cup realizes absorption and placement of the cover film by opening and closing the vacuum suction; the predetermined path of the rotational movement of the cover film suction cup defines a fixed position for absorption and placement of the cover film, thereby solving the problem of film deviation; the present invention adopts the cover film in the form of a sheet film to replace the online punching method of the roll film, thereby improving the appearance quality of the cover film; the present invention improves the degree of automation, thereby improving production efficiency, is simple and easy to implement, has a low manufacturing cost, and can be widely used in various production lines for capsule filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0024] in:

[0025] Figure 1 It is a three-dimensional diagram of the buckle cover and the cover film placement device for assembling tea capsules of the present invention.

[0026] Figure 2 It is a front view of the buckle cover and the cover film placement device for tea capsule assembly of the present invention.

[0027] Figure 3 It is a schematic diagram of the buckle cover portion of the present invention.

[0028] Figure 4 for Figure 3 Enlarged view of point I in the middle.

[0029] Figure 5 for Figure 2 Middle AA section view.

[0030] Figure 6 It is a rear view of the film placement portion of the present invention.

[0031] Figure 7 for Figure 6 Enlarged view of point II in the middle.

[0032] Figure 8 It is a schematic diagram of the state of the rotating body when the cover film suction cup of the present invention is in the initial state.

[0033] Fig. 9 It is a schematic diagram of the state of the rotating body when the cover film suction cup of the present invention is in motion state 1.

[0034] Fig.10 It is a schematic diagram of the state of the rotating body when the cover film suction cup of the present invention is in motion state 2.

[0035] Fig.11 It is a schematic diagram of the state of the rotating body when the cover film suction cup of the present invention is in motion state 3.

[0036] Fig.12 It is a schematic diagram of the state of the rotating body when the cover film suction cup of the present invention is in motion state 4.

[0037] Fig.13 It is a schematic diagram of the cover film suction cup of the present invention when it is in an initial state.

[0038] Fig.14 It is a schematic diagram of the cover film suction cup of the present invention when it is in motion state 1.

[0039] Fig.15 It is a schematic diagram of the cover film suction cup of the present invention when it is in motion state 2.

[0040] Fig.16 It is a schematic diagram of the cover film suction cup of the present invention when it is in motion state 3.

[0041] Fig.17 It is a schematic diagram of the cover film suction cup of the present invention when it is in motion state 4.

[0042] Fig.18 It is a schematic diagram of the heat sealing part of the present invention being located on the conveyor belt of the production line.

[0043] Fig.19 for Fig.18 Enlarged view of point III in the middle.

[0044] In the figure:

[0045] 1. Buckle cover;

[0046] 11. First shower cover suction cup; 12. Second shower cover suction cup; 13. Shower cover turntable; 14. First lifting rod; 15. Lifting rod connecting block; 16. Connecting block slideway; 171. First horizontal push-pull rod; 172. Second horizontal push-pull rod; 18. Shower cover sorting tray; 181. Shower cover conveyor belt; 19. Push-pull connecting block;

[0047] 2. Film placement part;

[0048] 21. Covering film storage structure; 211. Covering film storage cylinder; 212. Covering film baffle;

[0049] 22, film suction structure; 220, bearing seat; 2201, bearing; 221, film cover suction cup; 222, rotating shaft; 223, rotating body; 2231, first groove; 2232, arc track; 2233, second groove; 224, suction valve; 225, rotating body clamp ring; 226, rotating back plate; 2261, rotating shaft limiting slide groove; 227, rotating shaft slideway; 228, slider; 2281, slider connecting plate; 229, rotating column;

[0050] 23. Cylinder structure; 231. Cylinder; 232. Pneumatic push rod; 233. Cylinder air blowing valve; 234. Cylinder air suction valve; 235. Push block extension rod;

[0051] 3. Heat sealing department;

[0052] 31. Heat sealing head; 32. Second lifting rod;

[0053] 4. Production line conveyor belt;

[0054] 5. Capsule cup;

[0055] 6. Shower cover;

[0056] 7. Covering film;

[0057] 8. Rack. DETAILED DESCRIPTION

[0058] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0059] The specific embodiments of the present invention described herein are only used to explain the purpose of the present invention and cannot be understood as limiting the present invention in any way. Under the guidance of the present invention, technicians can conceive of any possible variations based on the present invention, which should be considered to belong to the scope of the present invention. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0061] like Figures 1 to 19As shown, the present invention provides a capping and capping film placing device for tea capsule assembly, comprising a production line conveyor belt 4; the production line conveyor belt 4 is mounted on a frame 8;

[0062] Along the conveying direction of the production line conveyor belt 4, there are sequentially provided a cover-fastening portion 1 for fastening the shower cover 6 to the capsule cup 5, a film-placing portion 2 for placing the cover film 7 on the cup edge of the capsule cup 5 after the cover is fastened, and a heat-sealing portion 3 for heat-sealing the cover film 7 on the cup edge of the capsule cup 5;

[0063] The film placing part 2 includes a cover film storage structure 21 and a film suction structure 22. The cover film storage structure 21 stores a cover film 7 in the form of a sheet film. The film suction structure 22 includes a cover film suction cup 221 that can be raised and lowered and rotated. The cover film suction cup 221 sucks and places the cover film through the opening and closing of vacuum suction; the cover film suction cup 221 can suck the cover film 7 in the cover film storage structure 21 and can place the cover film 7 on the edge of the cup mouth of the capsule cup 5.

[0064] The device for snapping on the lid and placing the cover film for assembling tea capsules of the present invention solves the problem of film deviation in the existing manual method and the problem of jagged edges of the cover film in the online punching method of the roll film; the cover film suction cup 221 moves and rotates to a predetermined position of the cover film storage structure 21 to absorb the cover film 7 in the form of a sheet film, and then rotates in the opposite direction to move back to the cover film position to place the cover film, thereby realizing automatic absorption and placement of the cover film at a predetermined position; the cover film suction cup 221 realizes absorption and placement of the cover film by opening and closing the vacuum suction; the predetermined path of the rotational movement of the cover film suction cup 221 defines a fixed position for absorption and placement of the cover film, thereby solving the problem of film deviation; the present invention adopts the cover film 7 in the form of a sheet film to replace the online punching method of the roll film, thereby improving the appearance quality of the cover film; the present invention improves the degree of automation, thereby improving production efficiency, is simple and easy to implement, has a low manufacturing cost, and can be widely used in various production lines for capsule filling.

[0065] Further, if Figure 2 , Figure 5 As shown, the film placing part 2 further includes a cylinder structure 23 for driving the cover film suction cup 221 to move up and down.

[0066] Further, if Figure 5 As shown, the film suction structure 22 also includes a swivel 223, a rotating shaft 222 and an air suction valve 224. An air suction channel is arranged in the rotating shaft 222. The first end of the air suction channel is open and the second end is closed. The cover film suction cup 221 is arranged near the second end of the air suction channel and is connected thereto; that is, the rotating shaft 222 is a hollow structure with one end open and the other end closed. The cover film suction cup 221 is fixedly connected to the closed end near the rotating shaft 222, and the swivel 223 is fixedly connected to the open end near the rotating shaft 222.

[0067] The suction valve 224 is connected to the first end (ie, the open end) of the suction channel; the swivel 223 is fixedly sleeved on the end of the shaft 222 away from the cover film suction cup 221 ; specifically, the swivel 223 is fixedly connected to the shaft 222 via a swivel clamp 225 .

[0068] The rotating shaft 222 is rotatably connected to the cylinder structure 23, and the cylinder structure 23 drives the rotating shaft 222 to rise and fall to drive the cover film suction cup 221 and the rotating body 223 to rise and fall. The rotating body 223 can drive the rotating shaft 222 to rotate during the lifting process so that the opening of the cover film suction cup 221 rotates to the cover film storage structure 21.

[0069] The suction valve 224, the rotating shaft 222, and the cover film suction cup 221 are internally connected. The suction valve 224 sucks air into the suction channel (the hollow structure of the rotating shaft), thereby causing the cover film suction cup 221 to generate suction force, so that the cover film suction cup 221 reaches the cover film receiving structure 21 (see the motion state drawing for details). Fig.17 ) when sucking the cover film 7 inside.

[0070] The suction valve 224 stops suctioning when the cover film suction cup 221 returns to the production line conveyor belt 4 (initial state) from the cover film receiving structure 21, and the cover film 7 separates from the cover film suction cup 221 and falls on the edge of the cup mouth of the capsule cup 5 to complete the placement of the cover film.

[0071] The cover film suction cup 221 (pneumatic suction cup) is driven by the rotating shaft 222 to rotate to a predetermined position to absorb the film, and then rotated in the opposite direction to return to the starting position to place the cover film, so as to achieve the absorption and placement of the cover film at a predetermined position. The vacuum suction of the cover film suction cup 221 is opened and closed to solve the absorption and placement of the cover film. The predetermined rotation path of the cover film suction cup 221 defines a fixed position for absorption and placement of the cover film, thereby solving the problem of film deviation.

[0072] Further, if Figure 5 , Figure 6 As shown, the film placing part 2 also includes a vertically arranged rotating back plate 226, on which a rotating shaft limiting groove 2261 is arranged, and a rotating shaft slideway 227 is arranged on one side of the rotating back plate 226, on which a sliding block 228 that can slide along is sleeved, and the rotating shaft 222 rotates through the sliding block 228 and the rotating shaft limiting groove 2261, and the sliding block 228 is connected to the cylinder structure 23; a rotating column 229 is also arranged on the rotating back plate 226, and the rotating body 223 rotates circumferentially along the rotating column 229 during the lifting process to drive the rotating shaft 222 and the film covering suction cup 221 to rotate.

[0073] Further, if Figure 5 As shown, the slider 228 is connected to the bearing seat 220 , bearings 2201 are arranged at both ends of the bearing seat 220 , and the rotating shaft 222 rotates through the bearings to be rotatably connected with the slider 228 .

[0074] Two bearings are sleeved on the outer part of the rotating shaft 222 near the middle section through the bearing seat 220, so that the rotating shaft 222 can rotate in the bearing. When the rotating shaft 222 rotates in the bearing, it synchronously drives the rotating body 223 and the film cover sucker 221 fixedly connected to the rotating shaft 222 to rotate. The bearing seat 220 is fixedly connected to the slider 228 via the slider connecting plate 2281. The slider 228 can slide up and down on the rotating shaft slideway 227, thereby driving the entire film suction structure 22 to move up and down in the rotating shaft limiting slide groove 2261.

[0075] Further, if Figure 5 As shown, the cylinder structure 23 includes a cylinder 231, in which a pneumatic push rod 232 is slidably inserted, and a cylinder blowing valve 233 and a cylinder suction valve 234 are respectively arranged at both ends of the cylinder 231; the pneumatic push rod 232 is connected to a push block extension rod 235, and the push block extension rod 235 is connected to the bearing seat 220.

[0076] The cylinder structure 23 controls the up and down movement of the film absorbing structure 22. The pneumatic push rod 232 is fixedly connected to the push block extension rod 235, and the push block extension rod 235 is vertically fixedly connected to the bearing seat 220 of the film absorbing structure 22. The pneumatic push rod 232 can move back and forth in the cylinder 231. The cylinder blowing valve 233 blows air, and the pneumatic push rod 232 rises due to the air force, and pushes the film absorbing structure 22 up through the push block extension rod 235. The cylinder suction valve 234 inhales air, and the pneumatic push rod 232 falls due to the air force, and pulls the film absorbing structure 22 back to the initial state through the push block extension rod 235.

[0077] Further, if Figure 6 , Figure 7 As shown, the rotating body 223 includes a semicircular body, a first groove 2231 is arranged inwardly at the center of the chord side of the semicircular body, a symmetrical arc track 2232 is arranged inwardly from the chord side on the semicircular body, and a second groove 2233 is arranged inwardly at a position opposite to the first groove 2231 on the arc side of the semicircular body;

[0078] A rotating column 229 is respectively arranged at both ends of the rotating shaft limiting groove 2261, and the second groove 2233 can be clamped on the rotating columns 229 at both ends of the rotating shaft limiting groove 2261 to limit the rotating body; at least one rotating column 229 is arranged on one side of the rotating shaft limiting groove 2261, and the arc track or the first groove can rotate along the rotating column 229 on one side of the rotating shaft limiting groove 2261 to guide the rotation of the rotating body 223.

[0079] When the entire film suction structure 22 moves up and down, the rotating body 223 is driven to rotate along the rotating column 229 on the rotating back plate 226, thereby driving the entire film suction structure 22 to rotate circumferentially, and then the film cover suction cup 221 is realized from the production line conveyor belt 4 (initial state) to the film cover storage structure 21 (see the movement state drawing for details). Fig.17 ) reciprocating rotation.

[0080] In a specific embodiment of the present invention, there are 5 rotating posts 229, which are distributed from low to high; there is one at each of the top and bottom ends of the rotating shaft limiting slot 2261, and 3 are set on one side of the rotating shaft limiting slot 2261; the rotating posts 229 at the top and bottom ends play a role in limiting the upper and lower limits of the rotating body 223. Therefore, the states of the film cover sucker 221 can be divided into an initial state, a motion state 1, a motion state 2, a motion state 3, and a motion state 4. The initial state refers to the state in which the opening of the film cover sucker 221 corresponds to the capsule cup 5 on the production line conveyor belt 4 downward (see Fig.13 ); At this time, the second groove 2233 is stuck at the bottom end of the rotating shaft limiting groove 2261 of the rotating column 229 (the state of the rotating body 223 is as shown Figure 8 Motion state 1 is a state in which the rotating column 229 at the lowest end of the rotating shaft limiting slide groove 2261 on one side of the rotating body 223 rotates (the states of the rotating body 223 and the cover film suction cup 221 are respectively as shown in Fig. 9 , Fig.14 Movement state 2 is the state when the two arc tracks of the rotating body 223 and the first groove 2231 are respectively sleeved on the three 229 on one side of the rotating shaft limiting groove 2261 (the states of the rotating body 223 and the cover film suction cup 221 are respectively as shown Fig.10 , Fig.15 Movement state 3 is the state of the rotating column 229 at the lowest end of the rotating shaft limiting groove 2261 on one side of the rotating body 223 (the states of the rotating body 223 and the cover film suction cup 221 are respectively as shown in Fig.11 , Fig.16 Movement state 4 is the state where the swivel 223 rises and rotates 180°, the opening of the cover film suction cup 221 upwardly corresponds to the cover film receiving structure 21 ( Fig.17 As shown), at this time, the second groove 2233 is stuck at the top of the rotating column 229 of the rotating shaft limiting slot 2261 (the state of the rotating body 223 is as shown in FIG. Fig.12 shown).

[0081] When the cylinder structure 23 gradually pushes the film suction structure 22 upward, the rotating body 223 is simultaneously pushed upward. The arc track of the rotating body 223 guides the upward movement direction of the rotating body 223, so the movement trajectory of the rotating body 223 is to rotate and climb along the rotating columns 229, and synchronously drive the rotating shaft 222 connected to it to rotate and climb. The film cover suction cup 221 connected to the closed end of the rotating shaft 222 rotates and climbs synchronously with the rotating body 223.

[0082] When the rotating body 223 changes from the initial state (see Figure 8 ) Turn and climb to motion state 4 (see Fig.12), the cover film suction cup 221 also rotates and climbs to motion state 4. At this time, the swivel 223 is restricted by the topmost rotating column 229 to move to motion state 4 and no longer rises, and the swivel 223 has rotated 180° compared with the initial state. The cover film suction cup 221 also reaches the predetermined highest point synchronously, and at the same time rotates 180° relative to the initial state. At this time, the opening of the cover film suction cup 221 is opposite to and close to the cover film storage structure 21. At this time, the air suction valve 224 connected to the open end of the rotating shaft inhales air, and sucks out the cover film 7 stacked in the cover film storage structure 21 (inside the cover film storage tube 211) from the bottom opening. The existence of the continuous suction force of the air suction valve 224 ensures that the cover film 7 is sucked on the cover film suction cup 221 and does not fall off.

[0083] After the cover film suction cup 221 absorbs the cover film 7, the cylinder blowing valve 233 stops working and the cylinder suction valve 234 starts working. The pneumatic push rod 232 of the cylinder structure 23 moves downward, synchronously pulling the swivel 223 downward. Under the guiding and limiting action of each rotating column 229, the swivel 223 gradually moves from motion state 4 to motion state 3, motion state 2, and motion state 1 and then gradually moves back to the initial state. Due to the limiting action of the rotating column 229 at the bottom, the swivel 223 moves to the predetermined lowest point and no longer descends. In this process, the cover film suction cup 221 synchronously rotates and gradually falls back to the initial state from motion state 4. At this time, the opening of the cover film suction cup 221 is facing the capsule cup mouth on the conveyor belt of the production line. At this time, the suction valve 224 connected to the open end of the rotating shaft stops sucking air, and the cover film 7 separates from the cover film suction cup 221 and falls on the edge of the capsule cup mouth to complete the placement of the cover film.

[0084] Further, if Figure 5 As shown, the cover film storage structure 21 includes a cover film storage cylinder 211 and a cover film baffle 212. Multiple cover films 7 are stacked in the cover film storage cylinder 211; the cover film storage cylinder 211 is vertically arranged and has two openings at both ends. In a specific embodiment, the cover film storage cylinder 211 is a straight cylindrical structure with a hollow interior and two through ends. The internal space shape of the straight cylindrical structure matches the shape and size of the cover film. A support plate is set at the top of the rotating back plate 226, and the cover film storage cylinder 211 is supported and arranged on the support plate.

[0085] The cover film baffle 212 is disposed at the bottom opening of the cover film storage tube 211 to prevent the cover film 7 from falling; the cover film suction cup 221 rises and rotates its opening to the bottom end of the cover film storage tube 211 to suck the cover film 7 in the cover film storage tube.

[0086] Further, if Figure 3 , Figure 4As shown, the cover buckle part 1 includes a first shower cover suction cup 11, a second shower cover suction cup 12 and a shower cover turntable 13. The first shower cover suction cup 11 and the second shower cover suction cup 12 are synchronously lifted and lowered and moved horizontally; the second shower cover suction cup 12 absorbs and transfers the shower cover 6 outside the production line conveyor belt 4 to the shower cover turntable 13, and the shower cover turntable 13 rotates the shower cover 6 thereon to a set angle to match the placement direction of the capsule cup 5 on the production line conveyor belt 4; the first shower cover suction cup 11 absorbs and transfers the shower cover 6 rotated by the shower cover turntable 13 to buckle it on the capsule cup 5 on the production line conveyor belt 4.

[0087] Further, if Figure 4 As shown, the first shower cover suction cup 11 and the second shower cover suction cup 12 are respectively connected to the two sides of the first lifting rod 14, and the first lifting rod 14 is connected to the lifting rod connecting block 15. The lifting rod connecting block 15 can move in a horizontal direction and perpendicular to the production line conveyor belt 4.

[0088] Further, if Figure 4 As shown, a connection block slideway 16 is fixedly provided on one side of the lifting rod connection block 15 , and a first horizontal push-pull rod 171 is connected to the lifting rod connection block 15 , and the first horizontal push-pull rod 171 pushes the lifting rod connection block 15 to move horizontally along the connection block slideway 16 .

[0089] Further, if Figure 3 , Figure 4 As shown, the cover buckle part 1 includes a shower cover material tray 18, a shower cover conveyor belt 181 is arranged below the shower cover material tray 18, one end of the shower cover conveyor belt 181 is provided with a push-pull connecting block 19 for receiving the shower cover 6, the push-pull connecting block 19 can move horizontally to move the shower cover to the shower cover suction position, and the second shower cover suction cup 12 sucks the shower cover 6 at the shower cover suction position.

[0090] Further, if Figure 4 As shown, the push-pull connection block 19 is connected to the second horizontal push-pull rod 172, and the second horizontal push-pull rod 172 pushes the push-pull connection block 19 to move horizontally.

[0091] After the capsule cup 5 is filled with the contents, the process of buckling the shower cover is started. The shower cover 6 is placed on the step at the edge of the capsule cup. Its function is: on the one hand, it can enhance the strength of the entire capsule, and on the other hand, the buckling of the shower cover can compress the contents in the cup (such as tea raw materials, which are fluffy and easy to pop out of the cup edge) to a certain extent, preventing the contents from popping out of the capsule cup edge after filling, affecting the subsequent welding and covering film process.

[0092] The shower cover sorting plate 18 sends the shower cover 6 to the shower cover conveyor belt 181 by vibrating the sorting material, and sends the shower cover 6 to the push-pull connecting block 19 connected to the second horizontal push-pull rod 172 through the shower cover conveyor belt 181. At this time, the second horizontal push-pull rod 172 pushes the push-pull connecting block 19 and the shower cover 6 to move toward the direction of the first horizontal push-pull rod 171 under the pneumatic force, and stops at the shower cover suction position.

[0093] At the same time, under the pulling force of the first horizontal push-pull rod 171, the lifting rod connecting block 15 of the first lifting rod 14 moves along the connecting block slide 16 away from the production line conveyor belt 4 until the second shower cover suction cup 12 is just above the shower cover suction position.

[0094] At this time, driven by the first lifting rod 14, the first shower cover suction cup 11 and the second shower cover suction cup 12 move downward from the starting height until the second shower cover suction cup 12 contacts the shower cover 6 on the shower cover suction position, and synchronously, the first shower cover suction cup 11 contacts the shower cover 6 after rotating a predetermined angle in the shower cover turntable 13.

[0095] The first shower cover suction cup 11 and the second shower cover suction cup 12 respectively suck the shower cover 6 in the shower cover rotating disk 13 and on the shower cover suction position under the action of pneumatic suction.

[0096] The shower cover turntable 13 is the transfer position for shower cover transportation. The function of this transfer position is: on the one hand, it reduces the problem of transportation position deviation caused by the long transportation distance in one step; on the other hand, the placement position of the shower cover is adjusted at the transfer position so that it can be directly matched with the buckle cover when it is transported to the capsule cup on the production line. The shower cover 6 in the shower cover turntable 13 is transported from the shower cover suction position by the second shower cover suction cup 12. The shower cover turntable 13 has a rotation function. After the second shower cover suction cup 12 transports the shower cover to the shower cover turntable 13, the shower cover turntable 13 starts to rotate and rotates a predetermined angle so that the placement direction of the shower cover 6 matches the placement direction of the capsule cup 5 on the production line conveyor belt 4, so as to match the buckle cover. After the shower cover completes the rotation of the predetermined angle, the first shower cover suction cup 11 descends to absorb the shower cover 6 in the shower cover turntable 13. The rotation action of the shower cover turntable 13 occurs before the first shower cover suction cup 11 descends.

[0097] The first shower cover suction cup 11 and the second shower cover suction cup 12, together with the shower cover 6 sucked by each, rise to the starting height of the first lifting rod 14 under the drive of the first lifting rod 14. After the shower cover turntable 13 and the shower cover suction position are sucked by the first shower cover suction cup 11 and the second shower cover suction cup 12 respectively, the shower cover turntable 13 and the shower cover suction position are in an empty disk state without a shower cover. At this time, the second horizontal push-pull rod 172 pulls the push-pull connection block 19 backward to return to the starting position. Then, the shower cover conveyor belt 181 conveys the new shower cover 6 to the push-pull connection block 19 again, so that the second horizontal push-pull rod 172 can push the shower cover to the shower cover suction position next time.

[0098] The first horizontal push-pull rod 171 pushes the first lifting rod 14, together with the first shower cover suction cup 11 and the second shower cover suction cup 12 after sucking the shower cover, toward the production line conveyor belt 4 through the lifting rod connecting block 15, until the first shower cover suction cup 11 is located directly above the capsule cup 5 on the production line conveyor belt 4, at which time the second shower cover suction cup 12 is located directly above the shower cover turntable 13. Then, the first lifting rod 14 drives the first shower cover suction cup 11 and the second shower cover suction cup 12 to move downward until the shower cover on the first shower cover suction cup 11 contacts the edge of the capsule cup 5 on the production line conveyor belt 4, at which time the shower cover on the second shower cover suction cup 12 is located in the shower cover turntable 13.

[0099] At this time, the suction of the first shower cover suction cup 11 and the second shower cover suction cup 12 is stopped, and the shower cover is separated from the first shower cover suction cup 11 and the second shower cover suction cup 12, and the shower cover on the first shower cover suction cup 11 is placed and installed on the edge of the capsule cup 5 on the production line conveyor belt 4, and the shower cover on the second shower cover suction cup 12 falls into the shower cover turntable 13. A complete shower cover buckle installation process is completed.

[0100] The first lifting rod 14 drives the first shower cover suction cup 11 and the second shower cover suction cup 12 to move upward to the starting height after they have been separated from the shower cover, and then the first horizontal push-pull rod 171 pulls the first shower cover suction cup 11 and the second shower cover suction cup 12 back to the shower cover suction position and directly above the shower cover turntable 13. At this time, a new shower cover has been transported to the shower cover suction position under the push of the second horizontal push-pull rod 172, and a new shower tray has been transported to the shower cover turntable 13 by the second shower cover suction cup 12 in the previous cover-locking process. Then, the first lifting rod 14 drives the first shower cover suction cup 11 and the second shower cover suction cup 12 to move downward until they contact the shower covers at their respective corresponding positions, and then suck and transport them, and start the next cover-locking process.

[0101] Further, if Fig.18 , Fig.19 As shown, the heat sealing part 3 includes a heat sealing head 31, and the heat sealing head 31 is connected to a second lifting rod 32 that can drive the heat sealing head 31 to rise and fall.

[0102] The heat sealing head 31 heated to a predetermined temperature moves downward under the drive of the second lifting rod 32 until it presses against the capsule cup 5 after the cover film 7 is placed. After maintaining the pressure for a predetermined time, the cover film 7 is welded to the edge of the capsule cup. At this time, the heat sealing head 31 moves upward (away from the production line conveyor belt) under the drive of the second lifting rod 32 and separates from the capsule cup 5. The cover film heat sealing is completed.

[0103] After the capsule cup is filled with the contents, it undergoes three processes to become a finished capsule: buckle the shower cap, place the cover film, and heat seal the cover film. Specifically including:

[0104] After the capsule cup 5 is filled with the contents, the process of buckling the shower cover is started. The shower cover 6 is placed on the step at the edge of the capsule cup. This process is completed by the buckling cover part 1.

[0105] After the capsule cup 5 is covered with a shower cap, the cover film 7 is placed. Placing the cover film 7 is to accurately place the cover film 7 for sealing on the edge of the capsule cup after the cover is closed. This process is completed by the film placement part 2.

[0106] After the capsule cup 5 is placed with the cover film, it enters the next station, the cover film heat sealing station, driven by the production line conveyor belt 4, and performs the last cover film heat sealing process for welding and sealing. This process is completed by the heat sealing unit 3.

[0107] As described above, the buckle cover and cover film placement device for tea capsule assembly of the present invention has the following beneficial effects:

[0108] The present invention solves the problem of film deviation in the existing manual method and the problem of jagged edges of the cover film in the online punching method of the roll film; the cover film suction cup moves and rotates to a predetermined position of the cover film storage structure to absorb the cover film in the form of a sheet film, and then rotates in the opposite direction to move back to the cover film position to place the cover film, thereby realizing automatic absorption and placement of the cover film at a predetermined position; the cover film suction cup realizes absorption and placement of the cover film by opening and closing the vacuum suction; the predetermined path of the rotational movement of the cover film suction cup defines a fixed position for absorption and placement of the cover film, thereby solving the problem of film deviation; the present invention adopts the cover film in the form of a sheet film to replace the online punching method of the roll film, thereby improving the appearance quality of the cover film; the present invention improves the degree of automation, thereby improving production efficiency, is simple and easy to implement, has a low manufacturing cost, and can be widely used in various production lines for capsule filling.

[0109] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A cover snapping and cover film placing device for tea capsule assembly, characterized in that: It comprises a production line conveyor belt; a cover-fastening part for fastening the shower cover to the capsule cup, a film-placing part for placing the cover film on the cup edge of the capsule cup after the cover is fastened, and a heat-sealing part for heat-sealing the cover film on the cup edge of the capsule cup are sequentially arranged along the conveying direction of the production line conveyor belt; The film placement part includes a cover film storage structure and a film suction structure, wherein the cover film storage structure stores the cover film in the form of a sheet film, and the film suction structure includes a cover film suction cup that can be raised and lowered and rotated, and the cover film suction cup sucks and places the cover film by opening and closing vacuum suction; The cover film suction cup can absorb the cover film in the cover film storage structure and place the cover film on the edge of the capsule cup.

2. The cover buckle and cover film placement device for tea capsule assembly according to claim 1, characterized in that: The film placing part also includes a cylinder structure for driving the cover film suction cup to rise and fall.

3. The cover buckle and cover film placement device for tea capsule assembly according to claim 2, characterized in that: The film suction structure also includes a swivel, a rotating shaft and an air suction valve, an air suction channel is arranged in the rotating shaft, the first end of the air suction channel is open and the second end is closed, the cover film suction cup is arranged close to the second end of the air suction channel and is connected with it; the air suction valve is connected and arranged at the first end of the air suction channel; the swivel is fixedly sleeved on the end of the rotating shaft away from the cover film suction cup; the rotating shaft is rotatably connected to the cylinder structure, and the cylinder structure drives the rotating shaft to rise and fall to drive the cover film suction cup and the swivel to rise and fall, and the swivel can drive the rotating shaft to rotate during the lifting process so that the opening of the cover film suction cup rotates to the cover film storage structure.

4. The cover buckle and cover film placement device for tea capsule assembly as claimed in claim 3, characterized in that: The film placing part also includes a vertically arranged rotating back plate, a rotating shaft limiting groove is arranged on the rotating back plate, a rotating shaft slideway is arranged on one side of the rotating back plate, a sliding block that can slide along the rotating shaft slideway is sleeved on the rotating shaft slideway, the rotating shaft rotates through the sliding block and the rotating shaft limiting groove, and the sliding block is connected to the cylinder structure; a rotating column is also arranged on the rotating back plate, and the rotating body rotates along the circumferential direction of the rotating column during the lifting process to drive the rotating shaft and the covering film suction cup to rotate.

5. The cover-fastening and cover-film placing device for tea capsule assembly according to claim 4, characterized in that: The slider is connected to a bearing seat, and bearings are arranged at both ends of the bearing seat. The rotating shaft rotates through the bearings to be rotatably connected with the slider.

6. The cover buckle and cover film placement device for tea capsule assembly according to claim 5, characterized in that: The cylinder structure comprises a cylinder, in which a pneumatic push rod is slidably inserted, and a cylinder blowing valve and a cylinder suction valve are respectively arranged at two ends of the cylinder; a push block extension rod is connected to the pneumatic push rod, and the push block extension rod is connected to the bearing seat.

7. The cover-fastening and cover-film placing device for assembling tea capsules according to claim 4, characterized in that: The swivel comprises a semicircular body, a first groove is arranged inwardly at the center of the chord side of the semicircular body, a symmetrical arc track is arranged inwardly from the chord side on the semicircular body, and a second groove is arranged inwardly on the arc side of the semicircular body at a position opposite to the first groove; A rotating column is respectively arranged at both ends of the rotating shaft limiting slide groove, and the second groove can be clamped on the rotating columns at both ends of the rotating shaft limiting slide groove to limit the rotating body; at least one rotating column is arranged on one side of the rotating shaft limiting slide groove, and the arc track or the first groove can rotate along the rotating column on one side of the rotating shaft limiting slide groove to guide the rotation of the rotating body.

8. The cover buckle and cover film placement device for tea capsule assembly according to claim 3, characterized in that: The cover film storage structure includes a cover film storage tube and a cover film baffle, and multiple cover films are overlapped and stacked in the cover film storage tube; the cover film storage tube is vertically arranged with openings at both ends, and the cover film baffle is arranged at the bottom opening of the cover film storage tube to prevent the cover film from falling; the cover film suction cup rises and its opening rotates to the bottom end of the cover film storage tube to absorb the cover film in the cover film storage tube.

9. The cover buckle and cover film placement device for tea capsule assembly according to claim 1, characterized in that: The cover buckle part includes a first shower cover suction cup, a second shower cover suction cup and a shower cover turntable, the first shower cover suction cup and the second shower cover suction cup are synchronously lifted and lowered and moved horizontally; the second shower cover suction cup absorbs and transfers the shower cover outside the production line conveyor belt to the shower cover turntable, and the shower cover turntable rotates the shower cover thereon to a set angle to match the placement direction of the capsule cup on the production line conveyor belt; the first shower cover suction cup absorbs and transfers the shower cover after rotation by the shower cover turntable to the capsule cup on the production line conveyor belt.

10. The cover-fastening and cover-film placing device for tea capsule assembly according to claim 9, characterized in that: The first shower cover suction cup and the second shower cover suction cup are respectively connected to two sides of a first lifting rod, the first lifting rod is connected to a lifting rod connecting block, and the lifting rod connecting block can move in a direction horizontally and perpendicular to the production line conveyor belt.

11. The cover-fastening and cover-film placing device for tea capsule assembly according to claim 10, characterized in that: A connection block slideway is fixedly arranged on one side of the lifting rod connection block, and a first horizontal push-pull rod is connected to the lifting rod connection block, and the first horizontal push-pull rod pushes the lifting rod connection block to move horizontally along the connection block slideway.

12. The cover-fastening and cover-film placing device for tea capsule assembly according to claim 9, characterized in that: The cover buckle part includes a shower cover material arrangement tray, a shower cover conveyor belt is arranged below the shower cover material arrangement tray, one end of the shower cover conveyor belt is provided with a push-pull connecting block for receiving the shower cover, the push-pull connecting block can move horizontally to move the shower cover to the shower cover suction position, and the second shower cover suction cup sucks the shower cover at the shower cover suction position.

13. The cover-fastening and cover-film placing device for tea capsule assembly according to claim 12, characterized in that: The push-pull connection block is connected to a second horizontal push-pull rod, and the second horizontal push-pull rod pushes the push-pull connection block to move horizontally.

14. The cover snapping and cover film placing device for tea capsule assembly according to claim 1, characterized in that: The heat sealing part comprises a heat sealing head, and the heat sealing head is connected with a second lifting rod which can drive the heat sealing head to rise and fall.

Images