Automatic tobacco leaf weaving equipment and working method thereof

Abstract

The invention relates to automatic tobacco leaf weaving equipment and a working method thereof.The automatic tobacco leaf weaving equipment comprises an operation rack, a tobacco leaf weaving platform capable of moving front and back is arranged on the upper side of the operation rack, tobacco leaf storage boxes used for storing tobacco leaves are arranged on the two sides of the front portion of the operation rack respectively, and lifting tables used for lifting the tobacco leaves are arranged in the tobacco leaf storage boxes; a grabbing mechanism which sucks tobacco leaves in the tobacco leaf storage box and then unloads the tobacco leaves to the tobacco leaf weaving platform is arranged above the front portion of the operation rack. A cigarette clamp clamping position and a cigarette clamp supply clamping mechanism are arranged on one side of the rear portion of the operation rack, and the cigarette clamp supply clamping mechanism comprises a cigarette clamp upper cover downward pressing mechanism, a cigarette clamp bottom cover jacking mechanism, a cigarette clamp upper cover conveying device and a cigarette clamp bottom cover conveying device, wherein the cigarette clamp upper cover downward pressing mechanism and the cigarette clamp bottom cover jacking mechanism are located on the upper side and the lower side of the cigarette clamp clamping position. The side, facing the tobacco clamp supply clamping mechanism, of the tobacco weaving platform extends out of the operation rack and is provided with a clamping receding groove hole corresponding to the tobacco clamp clamping position in position, and the tobacco clamp upper cover and the tobacco clamp bottom cover can penetrate through the clamping receding groove hole easily. Mechanization of tobacco leaf laying and tobacco clamp clamping is achieved, and the working efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tobacco leaf processing equipment, in particular to a tobacco leaf automatic rolling equipment and a working method thereof. BACKGROUND

[0002] Before the tobacco leaf is baked, the tobacco leaf is usually laid on a rolling platform, and then a comb-type tobacco clamp (composed of a comb-type tobacco clamp upper cover and a frame-type tobacco clamp bottom cover, as shown in Figure 10 ) is used to clamp and fix one end of the tobacco leaf, and finally the tobacco clamp is hung in a baking room for baking. In the prior art, the laying of the tobacco leaf and the clamping of the comb-type tobacco clamp are both performed manually, which not only has high labor intensity, consumes a lot of manpower, and has low working efficiency, but also has unstable rolling quality. SUMMARY

[0003] Therefore, the present application aims to provide a tobacco leaf automatic rolling equipment and a working method thereof, which are reasonable in design, convenient and practical, replace manual operation, greatly improve working efficiency, reduce labor intensity and labor cost, and have stable rolling quality.

[0004] The present application adopts the following scheme: a tobacco leaf automatic rolling equipment, comprising an operation rack, a rolling platform capable of moving forward and backward is arranged on the upper side of the operation rack, two storage boxes for storing tobacco leaves are arranged on the front part of the operation rack, a lifting table for lifting the tobacco leaves is arranged in the storage boxes, a grabbing mechanism for sucking and discharging the tobacco leaves in the storage boxes to the rolling platform is arranged above the front part of the operation rack; a tobacco clamp clamping position and a tobacco clamp feeding and clamping mechanism are arranged on one side of the rear part of the operation rack, the tobacco clamp feeding and clamping mechanism comprises a tobacco clamp upper cover pressing-down mechanism and a tobacco clamp bottom cover lifting mechanism arranged on the upper side and the lower side of the tobacco clamp clamping position, a tobacco clamp upper cover conveying device, and a tobacco clamp bottom cover conveying device, and the side of the rolling platform facing the tobacco clamp feeding and clamping mechanism extends out of the operation rack and is provided with a clamping position slot hole corresponding to the position of the tobacco clamp clamping position and facilitating the tobacco clamp upper cover and the tobacco clamp bottom cover to pass through the clamping position slot hole.

[0005] Further, the tobacco clamp upper cover pressing-down mechanism comprises a pair of limiting blocks distributed on both sides of the discharge end of the tobacco clamp upper cover conveying device, the inner side of the limiting block is provided with a position slot for the end of the tobacco clamp upper cover to enter, the bottom of the position slot is provided with a downward guide groove penetrating through the bottom surface of the limiting block for the end of the tobacco clamp upper cover to move downward, the upper side of the position slot is provided with a pressing-down top rod for pushing the end of the tobacco clamp upper cover downward, and the outer side of the position slot is provided with a positioning clamping block for pushing the end face of the tobacco clamp upper cover toward the middle.

[0006] Further, the two side limiting blocks are connected with a fixed crossbeam, one side limiting block is provided with a first clamping cylinder for driving the positioning clamping block to stretch and retract, the positioning clamping blocks on the two side limiting blocks are connected through a first linkage mechanism to realize synchronous stretching and retracting; the fixed crossbeam is provided with a movable crossbeam driven by a lifting cylinder to lift, the upper end of the lower pressing top rod on the two side limiting blocks penetrates the limiting block upward and is connected with the movable crossbeam.

[0007] Further, the positioning clamping block penetrates the outer side of the limiting block outward, the first linkage mechanism comprises a first connecting piece located in the middle of the two side limiting blocks and rotationally connected to the fixed crossbeam in the middle part, the two ends of the first connecting piece are respectively connected with first connecting rods extending to the two side limiting blocks, the upper part of the limiting block is provided with a movable shaft capable of sliding relative to the limiting block in the transverse direction, the middle one end of the movable shaft is connected with the first connecting rod, and the outward one end of the movable shaft and the outward one end of the positioning clamping block are connected together through a connecting plate, and the stretching rod of the first clamping cylinder is connected to the same side connecting plate.

[0008] Further, the cigarette clip bottom cover lifting mechanism comprises a pair of liftable clamping baffle plates distributed on both sides of the discharge end of the cigarette clip bottom cover conveying device, the inner side of the clamping baffle plate is provided with a limiting groove for the end part of the cigarette clip bottom cover to enter, and the two clamping baffle plates are connected through a second linkage mechanism to realize synchronous clamping of the cigarette clip bottom cover or loosening.

[0009] Further, the discharge end of the cigarette clip bottom cover conveying device is provided with a lifting crossbeam driven by a cylinder to lift, and the two clamping baffle plates are slidingly connected to the two ends of the lifting crossbeam; the second linkage mechanism comprises a second connecting piece located in the middle of the two clamping baffle plates and rotationally connected to the lifting crossbeam in the middle part, the two ends of the second connecting piece are respectively connected with second connecting rods between the two clamping baffle plates, and at least one end of the lifting crossbeam is provided with a second clamping cylinder for driving the corresponding end clamping baffle plate to reciprocatingly slide.

[0010] Further, the front part of the operation bench is provided with a gantry, the crossbeam of the gantry is provided with a mounting seat plate capable of reciprocatingly moving left and right in the transverse direction, and the grabbing mechanism is connected to one side of the mounting seat plate; the grabbing mechanism comprises a suction disc mounting beam driven by a grabbing cylinder to lift, and the two ends of the suction disc mounting beam are provided with two groups of suction disc assemblies for alternately sucking the tobacco leaves in the tobacco leaf storage boxes on the two sides.

[0011] Further, the suction disc assembly comprises two suction boxes distributed on both sides of the end part of the suction disc mounting beam, and the bottom of the suction box is provided with a suction hole; the end part of the suction disc mounting beam is fixedly connected with a first connecting plate, the first connecting plate is connected with a second connecting plate through a bolt, the suction box is connected below the same side second connecting plate, a first adjusting long groove matched with the bolt is formed in the first connecting plate, and the length direction of the first adjusting long groove is parallel to the spacing direction between the two suction boxes.

[0012] Further, a rodless cylinder is installed on the crossbeam of the gantry to drive the mounting seat plate to move back and forth; the crossbeam and the column of the gantry are hollow structures and the inner cavities of the two are connected, the column of the gantry is provided with a main air duct opening connected with the air pump air inlet, and the crossbeam of the gantry is provided with a first-stage air duct opening; the suction disc mounting beam is also a hollow structure, and the suction disc mounting beam is provided with a second-stage air duct opening connected with the first-stage air duct opening through an air pipe; the suction box is provided with a suction box air duct opening on the upper side, and the suction disc mounting beam is provided with a third-stage air duct opening connected with the suction box air duct opening through an air pipe.

[0013] Another technical solution of the present application is a working method of the automatic tobacco leaf rolling equipment, comprising the following steps: (1) The rolling platform is moved to the front part of the operation rack, the tobacco leaves in the storage box are sucked and then dropped onto the rolling platform by using the grabbing mechanism, one end of the tobacco leaves covers the clamping and spacing groove, and the rolling platform is intermittently moved backward, so that the tobacco leaves are staggered and stacked on the rolling platform; (2) After the laying of the first layer of tobacco leaves is completed, the laying of the second layer of tobacco leaves is completed by repeating step (1); (3) When the laying of the two layers of tobacco leaves on the rolling platform is completed, the rolling platform is moved to the rear part of the operation rack, the clamping and spacing groove of the rolling platform is just in the clamping position of the tobacco clamp, the upper cover of the tobacco clamp is pressed down by using the upper cover pressing down mechanism of the tobacco clamp, and the bottom cover of the tobacco clamp is pushed upward by using the bottom cover lifting mechanism of the tobacco clamp, so that the clamping of the upper cover and the bottom cover of the tobacco clamp is realized; then, the clamped tobacco clamp and the tobacco leaves are removed together by manual operation, and one round of rolling operation is completed.

[0014] Compared with the prior art, the automatic tobacco leaf rolling equipment has the following beneficial effects: the design of the automatic tobacco leaf rolling equipment is reasonable, convenient and practical, the mechanization of tobacco leaf laying and tobacco clamp clamping is realized, manual operation is replaced, the work is stable and reliable, the work efficiency is greatly improved, the labor intensity and labor cost are reduced, the clamping process ensures accurate positioning, avoids misalignment or damage during clamping, reduces the dependence on manpower, the rolling quality is stable, and the automatic tobacco leaf rolling equipment is suitable for large-scale tobacco leaf baking scenes.

[0015] In order to make the purpose, technical scheme and advantages of the present application more clear, specific examples and related drawings will be used to further illustrate the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the automatic tobacco leaf rolling equipment according to an embodiment of the present application; Figure 2 is another perspective view of the automatic tobacco leaf rolling equipment according to an embodiment of the present application from another direction; Figure 3 is a use state schematic diagram of the tobacco clamp feeding and clamping mechanism according to an embodiment of the present application, in which the bottom cover lifting mechanism of the tobacco clamp is omitted; Figure 4Is the cigarette clip supply clamping mechanism of the embodiment of the application omitting the cigarette clip bottom cover lifting mechanism; Figure 5 Is Figure 4 The schematic diagram of the partial structure of the middle station; Figure 6 Is the first linkage mechanism of the cigarette clip supply clamping mechanism of the embodiment of the application, and the schematic diagram of the partial structure is shown; Figure 7 Is the schematic diagram of the inner side structure of the limiting block of the cigarette clip supply clamping mechanism of the embodiment of the application; Figure 8 Is the cigarette clip bottom cover lifting mechanism of the embodiment of the application in use state, and the schematic diagram of the partial structure is shown; Figure 9 Is the cigarette clip bottom cover lifting mechanism of the embodiment of the application in use state, and the schematic diagram of the partial structure is shown; Figure 10 Is the schematic diagram of the comb type cigarette clip of the embodiment of the application; Figure 11 Is the schematic diagram of the grabbing mechanism of the embodiment of the application; Figure 12 Is the schematic diagram of the suction cup assembly structure of the embodiment of the application; Figure 13 Is the schematic diagram of the bottom structure of the suction cup assembly of the embodiment of the application; Figure 14 Is the schematic diagram of the lifting platform lifting state of the embodiment of the application; Figure 15 Is the schematic diagram of the leaf storage box of the embodiment of the application; Figure 16 Is the schematic diagram of the bottom orientation of the leaf storage box of the embodiment of the application; Explanation of reference numerals in the drawings: 1 - cigarette clip feeding and clamping mechanism, 101 - cigarette clip upper cover conveying device, 102 - cigarette clip bottom cover conveying device, 103 - cigarette clip upper cover pressing-down mechanism, 104 - cigarette clip bottom cover lifting mechanism, 105 - limiting block, 106 - giving-way slot, 107 - downward guide slot, 108 - pressing-down lifting rod, 109 - positioning clamping block, 110 - fixed cross beam, 111 - first clamping cylinder, 112 - lifting cylinder, 113 - movable cross beam, 114 - first connecting piece, 115 - first connecting rod, 116 - movable shaft, 117 - connecting plate, 118 - cigarette clip upper cover conveying belt, 119 - cigarette clip upper cover supporting plate, 120 - clamping baffle, 121 - limiting slot, 122 - lifting cross beam, 123 - second connecting piece, 124 - second connecting rod, 125 - second clamping cylinder, 126 - cigarette clip bottom cover conveying belt, 127 - cigarette clip bottom cover supporting plate, 128 - cigarette clip upper cover, 129 - cigarette clip bottom cover, 130 - limiting baffle, 2 - cigarette rolling platform, 201 - clamping position long slot hole, 3 - grabbing mechanism, 301 - grabbing cylinder, 302 - suction cup mounting beam, 303 - suction cup assembly, 304 - suction box, 305 - suction hole, 306 - first connecting plate, 307 - second connecting plate, 308 - first adjusting long slot, 309 - connecting column, 310 - baffle ring, 311 - spring, 312 - secondary air duct opening, 313 - suction box air duct opening, 314 - tertiary air duct opening, 315 - connecting buckle, 316 - cylinder support, 317 - second adjusting long slot, 4 - leaf storage box, 401 - box frame, 402 - pull-out bottom plate, 403 - socket, 404 - sliding slot, 5 - lifting platform, 501 - platform plate, 502 - base, 503 - first scissor frame, 504 - second scissor frame, 505 - servo motor, 506 - lead screw, 6 - gantry, 601 - mounting seat plate, 602 - primary air duct opening, 603 - rodless cylinder, 7 - operation stand, 701 - synchronous belt. DETAILED DESCRIPTION

[0017] It should be noted that the following detailed description is merely exemplary in nature and is intended to provide further description of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0018] It is also important to note that the terms "including", "comprising", and / or "having" as used herein are specifically intended to be open-ended and also to mean including, but not limited to. As used herein, the singular forms "a", "an" and / or "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. As Figures 1-16As shown, an automatic tobacco leaf rolling device includes an operation rack 7, the operation rack 7 is provided with a rolling platform 2 capable of moving forward and backward on the upper side, the operation rack 7 is provided with a tobacco leaf storage box 4 on both sides of the front part, the inside of the tobacco leaf storage box is provided with a lifting table 5 for lifting tobacco leaves, and the operation rack is provided with a grabbing mechanism 3 above the front part, which can suck the tobacco leaves in the tobacco leaf storage box and then drop them on the rolling platform.

[0019] The operation rack 7 is provided with a tobacco clip clamping position and a tobacco clip feeding and clamping mechanism 1 on one side of the rear part, the tobacco clip feeding and clamping mechanism 1 includes a tobacco clip upper cover pressing mechanism 103 and a tobacco clip bottom cover lifting mechanism 104 located on the upper and lower sides of the tobacco clip clamping position, and a tobacco clip upper cover conveying device 101 and a tobacco clip bottom cover conveying device 102, the tobacco clip upper cover conveying device 101 and the tobacco clip bottom cover conveying device 102 are installed one above the other on the rack beside the rear part of the operation rack, the tobacco clip upper cover pressing mechanism 103 is located at the discharge end of the tobacco clip upper cover conveying device, the tobacco clip bottom cover lifting mechanism 104 is located at the discharge end of the tobacco clip bottom cover conveying device, the rolling platform extends outwardly from the operation rack towards the side of the tobacco clip feeding and clamping mechanism and is provided with a clamping position slot hole 201 corresponding to the position of the tobacco clip clamping position and facilitating the passage of the tobacco clip upper cover and the tobacco clip bottom cover, the rolling platform completes the laying of tobacco leaves at the front part of the operation rack, and then moves backward to the rear part of the operation rack, at this time the clamping position slot hole 201 is just in the tobacco clip clamping position, the tobacco clip completes clamping in the clamping position slot hole 201, and the clamping position slot hole 201 plays a role of avoiding.

[0020] The front part of the operation rack 7 is a laying station, and the rear part is a clamping station, after the rolling platform 2 completes the laying of tobacco leaves at the laying station, the rolling platform 2 moves backward to the clamping station to perform the clamping operation of the tobacco clip.

[0021] The tobacco clip upper cover is arranged on the tobacco clip upper cover conveying device by manual operation, the tobacco clip bottom cover is arranged on the tobacco clip bottom cover conveying device, the tobacco clip upper cover is sent into the tobacco clip upper cover pressing mechanism 103 one by one, the tobacco clip bottom cover is sent into the tobacco clip bottom cover lifting mechanism 104 one by one, and the tobacco clip upper cover and the tobacco clip bottom cover are clamped by pressing the tobacco clip upper cover downward by the tobacco clip upper cover pressing mechanism 103 and pushing the tobacco clip bottom cover upward by the tobacco clip bottom cover lifting mechanism 104.

[0022] In the embodiment, the cigarette clamp upper cover pressing down mechanism 103 comprises a pair of limiting blocks 105 distributed on both sides of the discharge end of the cigarette clamp upper cover conveying device, the inner side of the limiting block is provided with a gap slot 106 for the end of the cigarette clamp upper cover to enter, the bottom of the gap slot is provided with a downward guide groove 107 penetrating through the bottom surface of the limiting block for the end of the cigarette clamp upper cover to go down, the upper side of the gap slot is provided with a pressing down top rod 108 for pushing down the end of the cigarette clamp upper cover, and the outer side of the gap slot is provided with a positioning clamping block 109 for pushing the end face of the cigarette clamp upper cover to the middle. When the cigarette clamp upper cover is pushed into the cigarette clamp upper cover pressing down mechanism, the two ends of the cigarette clamp upper cover enter the gap slots on the two limiting blocks respectively and reach above the downward guide groove 107. Before the cigarette clamp upper cover is pressed down, the positioning clamping blocks 109 on the two limiting blocks are first used to cooperate with the fixed starting position of the cigarette clamp to provide accurate positioning for the pressing down, and then the pressing down top rod 108 is extended downward to push the cigarette clamp upper cover to stably press down the cigarette clamp upper cover, so that stable positioning is realized and mispositioning or damage during clamping is avoided.

[0023] In the embodiment, the fixed cross beam 110 is connected between the two limiting blocks 105, one of the limiting blocks is provided with a first clamping cylinder 111 for driving the positioning clamping block to extend and retract, and the positioning clamping blocks on the two limiting blocks are connected through a first linkage mechanism to realize synchronous extension and retraction.

[0024] In the embodiment, the fixed cross beam 110 is connected between the two limiting blocks 105, one of the limiting blocks is provided with a first clamping cylinder 111 for driving the positioning clamping block to extend and retract, and the positioning clamping blocks on the two limiting blocks are connected through a first linkage mechanism to realize synchronous extension and retraction.

[0025] In the embodiment, the positioning clamping block penetrates through the outer side of the limiting block, the first linkage mechanism comprises a first connecting piece 114 located in the middle of the two limiting blocks and rotationally connected to the fixed cross beam in the middle part, the two ends of the first connecting piece are respectively connected with first connecting rods 115 extending to the two limiting blocks, the upper part of the limiting block is provided with a movable shaft 116 penetrating through in the transverse direction and capable of sliding relative to the limiting block, the middle one end of the movable shaft is connected with the first connecting rod, and the outer one end is connected with the outer one end of the positioning clamping block through a connecting plate 117, and the extension rod of the first clamping cylinder is connected to the same side connecting plate. The first clamping cylinder drives the same side connecting plate to move, thereby driving the positioning clamping block on the same side to extend and retract, and simultaneously driving the positioning clamping block on the other side to extend and retract synchronously through the first linkage mechanism.

[0026] In the embodiment, the cigarette clamp upper cover conveying device comprises two parallel cigarette clamp upper cover conveying belts 118, and a cigarette clamp upper cover supporting plate 119 is arranged between the cigarette clamp upper cover conveying belt discharge end and the limiting block. The cigarette clamp upper cover insertion pins are arranged downward on the cigarette clamp upper cover conveying device, and the two ends of the cigarette clamp upper cover are respectively placed on the two cigarette clamp upper cover conveying belts. One end of the two cigarette clamp upper cover conveying belts is connected together through a rotating shaft to realize synchronous action. The cigarette clamp upper cover supporting plate 119 is used to fill the gap between the cigarette clamp upper cover conveying belt and the limiting block. The surface of the cigarette clamp upper cover supporting plate 119 is flush with the bottom surface of the limiting block and the upper surface of the cigarette clamp upper cover conveying belt, so that the cigarette clamp upper cover can smoothly transition to the working position and reduce the jamming.

[0027] In the embodiment, the cigarette clamp bottom cover lifting mechanism comprises a pair of liftable clamping baffles 120 distributed on both sides of the cigarette clamp bottom cover conveying device discharge end. The inner side of the clamping baffle 120 is provided with a limiting groove 121 for the end of the cigarette clamp bottom cover. The two clamping baffles are connected through a second linkage mechanism to realize synchronous clamping of the cigarette clamp bottom cover or loosening. When the cigarette clamp bottom cover is pushed into the cigarette clamp bottom cover lifting mechanism, the two ends of the cigarette clamp bottom cover enter the limiting grooves on the two clamping baffles 120. At this time, the two ends of the cigarette clamp bottom cover are only placed on the limiting grooves. Then, the two clamping baffles are synchronously close to the two ends of the cigarette clamp bottom cover to reliably clamp the cigarette clamp bottom cover, so as to ensure stable positioning and avoid misalignment or damage during clamping.

[0028] In the embodiment, the discharge end of the cigarette clamp bottom cover conveying device is provided with a lifting beam 122 driven by a cylinder to lift. The two clamping baffles are slidingly connected to the two ends of the lifting beam. The two ends of the lifting beam are slidingly connected to the sides of the operation rack through linear guides and sliding blocks. The two clamping baffles are slidingly connected to the two ends of the lifting beam through linear guides and sliding blocks. The cylinder drives the entire lifting beam to move upward, driving the cigarette clamp bottom cover fixed by the clamping baffles to move vertically upward, and completing the clamping action of the cigarette clamp with the downward moving cigarette clamp upper cover.

[0029] In the embodiment, the second linkage mechanism comprises a second connecting piece 123 located between the two clamping baffles and rotatingly connected to the lifting beam at the middle part. Second connecting rods 124 are respectively connected between the two ends of the second connecting piece and the two clamping baffles. At least one end of the lifting beam is provided with a second clamping cylinder 125 for driving the corresponding end clamping baffle to slide back and forth.

[0030] In the embodiment, the cigarette clip bottom cover conveying device comprises two parallel cigarette clip bottom cover conveying belts 126, limit stoppers 130 are arranged outside the cigarette clip bottom cover conveying belts, and a cigarette clip bottom cover supporting plate 127 is arranged between the cigarette clip bottom cover conveying belt discharge end and the clamping baffle. The cigarette clip bottom cover openings are arranged on the cigarette clip bottom cover conveying device in an upward direction, the two ends of the cigarette clip bottom cover are respectively placed on the two cigarette clip bottom cover conveying belts, and one end of the two cigarette clip bottom cover conveying belts is connected together through a rotating shaft to realize synchronous action. The cigarette clip bottom cover supporting plate 127 is used to fill the gap between the cigarette clip bottom cover conveying belt and the clamping baffle, the surface of the cigarette clip bottom cover supporting plate is flush with the bottom surface of the limit groove on the clamping baffle and the upper surface of the cigarette clip top cover conveying belt, and the cigarette clip bottom cover is smoothly transferred to the working position to reduce jamming.

[0031] The cigarette clip feeding and clamping mechanism of the present application realizes mechanical clamping of the cigarette clip through combined design of layered conveying and clamping functions, is stable and reliable in work, ensures accurate alignment, avoids misalignment or damage during clamping, replaces manual operation, greatly improves work efficiency, reduces labor intensity and labor cost, reduces manpower dependence, and is suitable for large-scale tobacco leaf baking scenes.

[0032] In the embodiment, a gantry 6 is arranged above the front part of the operation rack, a mounting seat plate 601 capable of reciprocating left and right in the transverse direction is arranged on the cross beam of the gantry 6, and the grabbing mechanism 3 is connected to one side of the mounting seat plate 601. The grabbing mechanism 3 comprises a suction disc mounting beam 302 driven to lift by a grabbing cylinder 301, two groups of suction disc assemblies 303 for alternately sucking tobacco leaves in the two side tobacco storage boxes are arranged at the two ends of the suction disc mounting beam, each grabbing mechanism 3 has two groups of suction disc assemblies 303, when the left group of suction disc assemblies 303 reaches above the left tobacco storage box 4, the right group of suction disc assemblies 303 is located on the tobacco rolling platform 2; when the left group of suction disc assemblies 303 reaches above the tobacco rolling platform 2, the right group of suction disc assemblies 303 is located above the right tobacco storage box 4, and the two groups of suction disc assemblies 303 work alternately, when one group is lowered to suck tobacco leaves, the other group is lowered without generating negative pressure to unload the tobacco leaves to the tobacco rolling platform 2, and each group of suction disc assemblies 303 sucks one piece of tobacco leaves in the corresponding tobacco storage box 4 each time.

[0033] In the embodiment, in order to increase the amount of tobacco leaves grabbed and improve the tobacco rolling efficiency, two groups of grabbing mechanisms 3 are arranged on the front and rear sides of the mounting seat plate 601, the two groups of grabbing mechanisms 3 work synchronously, and the tobacco storage boxes 4 are also arranged in two groups in front and back, each group has two, and the two tobacco storage boxes 4 in the same group are distributed on the two sides of the operation rack. The front group of grabbing mechanisms 3 is used to suck the tobacco leaves in the two tobacco storage boxes 4 of the front group, the rear group of grabbing mechanisms 3 is used to suck the tobacco leaves in the two tobacco storage boxes 4 of the rear group, the grabbing mechanism 3 completes one round of laying action, the tobacco rolling platform moves a certain distance backward, the rear group of grabbing mechanisms 3 starts laying from the rear end of the tobacco rolling platform, and the front group of grabbing mechanisms 3 starts laying from the middle of the tobacco rolling platform.

[0034] Because the tobacco leaves are large, the wind resistance during movement is large, if the speed of the suction cups is too fast after the suction cups suck the tobacco leaves, the wind resistance of the tobacco leaves increases, which easily causes the tobacco leaves to fall off, resulting in failure of the tobacco leaf taking operation, and the use of four groups of suction cup assemblies working simultaneously can appropriately reduce the working speed of the suction cups, the working is reliable, thereby improving the working stability, and meanwhile ensuring the overall working efficiency.

[0035] In the embodiment, the suction cup assembly 303 includes two suction boxes 304 distributed on both sides of the suction cup mounting beam end, and the suction box 304 is provided with a suction hole 305 at the bottom; the first connecting plate 306 is fixedly connected on both sides of the suction cup mounting beam end, the second connecting plate 307 is connected to the first connecting plate through bolts, the suction box is connected below the same side of the second connecting plate, the first adjusting long groove 308 is arranged on the first connecting plate and matched with the bolt, the length direction of the first adjusting long groove is parallel to the spacing direction between the two suction boxes, and the first adjusting long groove 308 is beneficial to adjusting the spacing between the two suction boxes 304, allowing to adapt to tobacco leaves of different sizes and improving the versatility.

[0036] In the embodiment, the suction box is connected with a connecting column 309 penetrating through the second connecting plate and being capable of sliding relative to the second connecting plate, the connecting column is provided with a stop ring 310 clamped on the upper side of the second connecting plate, and the spring 311 is sleeved on the connecting column. Because there is a large difference in the gap between the upper and lower tobacco leaves, in order to make the suction box generate enough mutual extrusion force when contacting the middle of the tobacco leaves, the spring is arranged to ensure that the tobacco leaves are effectively adsorbed.

[0037] In the embodiment, the cross beam and the column of the gantry are hollow structures and the inner cavities of the two are connected, the column of the gantry is provided with a main air duct opening connected with the air inlet of the air pump, and the cross beam of the gantry 6 is provided with a first air duct opening 602; the suction cup mounting beam is also a hollow structure, and the suction cup mounting beam is provided with a second air duct opening 312 connected with the first air duct opening 602 through an air pipe; the upper side of the suction box is provided with a suction box air duct opening 313, and the suction cup mounting beam is provided with a third air duct opening 314 connected with the suction box air duct opening through an air pipe. The arrangement of the multi-stage air duct openings can reduce the length of the air pipe and avoid the winding of the air pipe.

[0038] The air pipe connecting the suction box air duct opening 313 and the third air duct opening 314 of the suction box is provided with an electromagnetic valve, which is used to control the suction box to generate negative pressure to suck the tobacco leaves or to release pressure to unload the tobacco leaves.

[0039] In the embodiment, the grabbing cylinder is a guide rod cylinder, and the grabbing cylinder is located in the middle of the chuck mounting beam. A rectangular ring-shaped connecting buckle 315 for the chuck mounting beam to pass through is connected to the baffle of the grabbing cylinder by screws, and locking screws for locking the chuck mounting beam are connected to the bottom of the connecting buckle. A cylinder support 316 is connected to the side of the mounting seat plate by bolts, and the grabbing cylinder is connected to the cylinder support. A second adjusting long groove 317 matched with the bolts is arranged on the cylinder support, and the length direction of the second adjusting long groove is parallel to the front-rear direction.

[0040] In the embodiment, a rodless cylinder 603 for driving the mounting seat plate to move leftward and rightward is arranged on the cross beam of the gantry. Specifically, the rodless cylinder is a magnetic coupling type rodless cylinder. The mounting seat plate is slidably arranged on the cross beam of the gantry through a linear guide rail and a sliding block. The rodless cylinder 603 drives the mounting seat plate to move leftward and rightward, so that the chuck assemblies at both ends of the grabbing mechanism 3 are alternately located above the tobacco leaf storage boxes and the tobacco rolling platform, so as to alternately suck the tobacco leaves from the two tobacco leaf storage boxes and unload the tobacco leaves onto the tobacco rolling platform.

[0041] In the embodiment, the lifting platform is a scissor-type lifting machine, which comprises a table plate 501, a base 502, a first scissor frame 503, a second scissor frame 504, a servo motor 505 and a lead screw 506. The middle parts of the first scissor frame 503 and the second scissor frame 504 are hingedly connected. The upper end of the first scissor frame 503 is hingedly connected to the bottom of the table plate 501, and the lower end is slidably connected to the base 502. The upper end of the second scissor frame 504 is slidably connected to the bottom of the table plate 501, and the lower end is hingedly connected to the base 502. A lead screw nut seat matched with the lead screw 506 is arranged at the lower end of the first scissor frame 503. The servo motor 505 is coaxially connected to the lead screw through a shaft coupling. The lead screw is rotatably arranged on the base. The servo motor 505 drives the lead screw to rotate, and then drives the lower end of the first scissor frame 503 to move to realize lifting.

[0042] In order to ensure that the suction box can effectively suck the tobacco leaves, the lifting platform can timely lift the tobacco leaves, so that the upper surface of the tobacco leaves is maintained at a relatively stable position. Since the scissor-type lifting machine is lifted by horizontal thrust, there is a nonlinear relationship between the horizontal pushing distance and the lifting height. In order to accurately express the relationship between the two, the lifting height is accurately controlled by using the lead screw transmission and the servo motor driving mode.

[0043] In the embodiment, a synchronous belt 701 for driving the tobacco rolling platform to move forward and backward is arranged on the operation rack 7. The synchronous belt is driven by a servo motor. The tobacco rolling platform is slidably connected to the upper side of the operation rack through a linear guide rail and a sliding block. The bottom of the tobacco rolling platform is connected to the upper side of the synchronous belt. The tobacco rolling platform is gapwisely moved backward, so that the tobacco leaves are staggered and stacked.

[0044] In this embodiment, a sponge pad is attached to the bottom of the suction box to ensure that the suction box is fully in contact with the tobacco leaves during the contact process, reduce air leakage, and improve suction force.

[0045] In this embodiment, the leaf storage box 4 includes a box frame 401 with an open top and bottom, and a pull-out bottom plate 402 for sealing the bottom or top of the box frame 401. The top and bottom sides of the box frame 401 are respectively provided with slots 403 for inserting the pull-out bottom plate 402. The top and bottom sides of the box frame 401 adjacent to the sides where the slots 403 are located are provided with sliding grooves 404 that slide in conjunction with the pull-out bottom plate 402. The pull-out bottom plate 402 can be inserted into the slots 403 along the sliding grooves 404 or pulled out. The leaf storage box 4, with its top and bottom both featuring sliding grooves and slots, can work in conjunction with a lifting platform to complete the feeding and turning process. Before operation, the pull-out bottom plate 402 is installed at the bottom of the leaf storage box 4. The operator first places the leaf storage box 4, filled with tobacco leaves, onto the lifting platform. When the pull-out bottom plate 402 is just pressing against the upper side of the lifting platform, the pull-out bottom plate is pulled out, causing the box frame 401 to cover the outside of the lifting platform. At the same time, the tobacco leaves fall onto the lifting platform and enter the feeding process. When the tobacco weaving platform has completed the first layer of tobacco leaves and it is necessary to turn the tobacco leaves over, the pull-out bottom plate 402 can be inserted from the top of the box frame 401, and then the entire leaf storage box 4 can be turned over, thus achieving a quick change of the entire box of tobacco leaves.

[0046] The gripping mechanism of this invention enables the mechanized laying of tobacco leaves on the tobacco weaving platform, replacing manual laying of tobacco leaves, achieving efficient tobacco leaf laying, stable and reliable operation, greatly improving work efficiency, reducing labor intensity and labor costs, and is suitable for large-scale tobacco leaf curing scenarios.

[0047] A method for operating the automatic tobacco-making equipment as described above includes the following steps: (1) The tobacco weaving platform moves to the front of the operating platform. The grabbing mechanism sucks up the tobacco leaves in the storage box and drops them onto the tobacco weaving platform. One end of the tobacco leaves covers the clamping clearance slot. The tobacco weaving platform moves backward intermittently. Each time the grabbing mechanism completes a round of grabbing, the tobacco weaving platform moves backward a certain distance, so that the tobacco leaves are stacked in a staggered manner on the tobacco weaving platform. (2) After completing the first layer of tobacco leaves, repeat step (1) to complete the second layer of tobacco leaves; (3) After the two layers of tobacco leaves are laid on the tobacco weaving platform, the tobacco weaving platform is moved to the rear of the operating frame. The clamping clearance slot of the tobacco weaving platform is just in the clamping position of the tobacco clip. The upper cover of the tobacco clip is pressed down by the upper cover pressing mechanism, and at the same time the lower cover of the tobacco clip is pushed up by the lower cover lifting mechanism to achieve the clamping of the upper cover and the lower cover of the tobacco clip. Then, the clamped tobacco clip and the tobacco leaves are removed manually to complete one round of tobacco weaving operation. Immediately afterwards, the upper cover conveying device and the lower cover conveying device replenish the upper cover and the lower cover of the tobacco clip to the upper cover pressing mechanism and the lower cover lifting mechanism of the tobacco clip, respectively, to prepare for the next round of tobacco weaving operation.

[0048] The step (2) needs to turn over the tobacco leaves before the second layer of tobacco leaves is laid, that is, the pulling bottom plate is inserted from the top of the box frame, and then the whole is turned over to realize the rapid surface change of the tobacco leaves. Any of the technical solutions disclosed in the present application, unless otherwise stated, if it discloses a numerical range, the disclosed numerical range is a preferred numerical range, any person skilled in the art should understand that the preferred numerical range is only one of the many implementable values with more obvious technical effects or representative values. Because there are too many values, it is impossible to enumerate, so the present application discloses some values to illustrate the technical solutions of the present application, and the above enumerated values should not constitute a limitation on the protection scope of the present application.

[0049] If the present application discloses or involves mutually fixed connecting parts or structural parts, unless otherwise stated, the fixed connection can be understood as: detachable fixed connection (such as using bolt or screw connection), and can also be understood as: non-detachable fixed connection (such as riveting, welding), of course, the mutual fixed connection can also be replaced by an integral structure (such as using casting process to integrally form and manufacture) (obviously, except for the integral forming process).

[0050] In addition, the terms used to represent the position relationship or shape in any of the technical solutions disclosed in the present application, unless otherwise stated, its meaning includes the approximate, similar or close state or shape.

[0051] Any of the components provided by the present application can be assembled from a plurality of individual components, or can be a single component manufactured by an integral forming process.

[0052] The above is only a preferred embodiment of the present application, and is not a limitation on other forms of the present application. Any person skilled in the art can modify or change the above disclosed technical content to form equivalent embodiments. However, any simple modification, equivalent change and modification made according to the technical essence of the present application without departing from the technical solution content of the present application still belongs to the protection scope of the present application.

Claims

1. An automatic tobacco leaf blending device, characterized in that: The device includes an operating platform with a movable tobacco weaving platform on its upper side. Two tobacco storage boxes are located on either side of the front of the operating platform, each containing a lifting platform for raising the tobacco leaves. A gripping mechanism is located above the front of the operating platform to collect the tobacco leaves from the storage boxes and unload them onto the weaving platform. A tobacco clip clamping position and a tobacco clip supply clamping mechanism are located on one side of the rear of the operating platform. The tobacco clip supply clamping mechanism includes a tobacco clip upper cover pressing mechanism and a tobacco clip bottom cover lifting mechanism located above and below the tobacco clip clamping position, as well as a tobacco clip upper cover conveying device and a tobacco clip bottom cover conveying device. The weaving platform extends outward from the operating platform towards the tobacco clip supply clamping mechanism and has clamping clearance slots corresponding to the position of the tobacco clip clamping position, facilitating the passage of the tobacco clip upper cover and bottom cover.

2. The automatic tobacco leaf binding equipment according to claim 1, characterized in that: The cigarette clip cover pressing mechanism includes a pair of limiting blocks distributed on both sides of the discharge end of the cigarette clip cover conveying device. The inner side of the limiting block is provided with a clearance groove for the end of the cigarette clip cover to enter. The bottom of the clearance groove is provided with a downward guide groove that passes through the bottom surface of the limiting block to allow the end of the cigarette clip cover to descend. Above the clearance groove is a pressing rod for pushing the end of the cigarette clip cover downward. The outer side of the clearance groove is provided with a positioning clamping block that pushes the end face of the cigarette clip cover toward the middle.

3. The automatic tobacco leaf weaving equipment according to claim 2, characterized in that: A fixed crossbeam is connected between the two limiting blocks. A first clamping cylinder is installed on one of the limiting blocks to drive the positioning clamps to extend and retract. The positioning clamps on the two limiting blocks are connected by a first linkage mechanism to achieve synchronous extension and retraction. A movable crossbeam driven to rise and fall by a lifting cylinder is provided above the fixed crossbeam. The upper end of the downward pressing rod on the two limiting blocks extends upward through the limiting block and connects to the movable crossbeam.

4. The automatic tobacco leaf binding equipment according to claim 3, characterized in that: The positioning clamp extends outward through the outer side of the limiting block. The first linkage mechanism includes a first connecting member located between the two limiting blocks and rotatably connected to the fixed crossbeam. The two ends of the first connecting member are respectively connected to a first connecting rod extending towards the two limiting blocks. The upper part of the limiting block is provided with a movable shaft that can slide relative to the limiting block. The movable shaft is connected to the first connecting rod at the middle end and to the outer end of the positioning clamp through a connecting plate. The telescopic rod of the first clamping cylinder is connected to the connecting plate on the same side.

5. The automatic tobacco leaf binding equipment according to claim 1, characterized in that: The cigarette clip bottom cover lifting mechanism includes a pair of liftable clamping baffles distributed on both sides of the discharge end of the cigarette clip bottom cover conveying device. The inner side of the clamping baffle is provided with a limiting groove for the end of the cigarette clip bottom cover to enter. The two clamping baffles are connected by a second linkage mechanism to realize synchronous clamping or releasing of the cigarette clip bottom cover.

6. The automatic tobacco leaf binding equipment according to claim 5, characterized in that: The discharge end of the cigarette clip bottom cover conveying device is equipped with a lifting beam driven by a cylinder, and two clamping baffles are slidably connected to both ends of the lifting beam; the second linkage mechanism includes a second connecting member located between the two clamping baffles and rotatably connected to the lifting beam in the middle, and the two ends of the second connecting member are respectively connected to the two clamping baffles on both sides with second connecting rods, and at least one end of the lifting beam is equipped with a second clamping cylinder for driving the corresponding end clamping baffle to slide back and forth.

7. The automatic tobacco leaf binding equipment according to claim 1, characterized in that: The operating platform is equipped with a gantry frame above the front part. The crossbeam of the gantry frame is equipped with a mounting plate that can move back and forth horizontally. The gripping mechanism is connected to one side of the mounting plate. The gripping mechanism includes a suction cup mounting beam that is driven to rise and fall by a gripping cylinder. The two ends of the suction cup mounting beam are equipped with two sets of suction cup assemblies for alternately sucking up tobacco leaves from the tobacco storage boxes on both sides.

8. The automatic tobacco leaf binding equipment according to claim 7, characterized in that: The suction cup assembly includes two suction boxes distributed on both sides of the end of the suction cup mounting beam, and the bottom of the suction box is provided with suction holes; a first connecting plate is fixedly connected to both sides of the end of the suction cup mounting beam, and the first connecting plate is connected to a second connecting plate by bolts. The suction box is connected to the lower part of the second connecting plate on the same side. A first adjusting groove is provided on the first connecting plate to cooperate with the bolts. The length direction of the first adjusting groove is parallel to the distance direction between the two suction boxes.

9. The automatic tobacco leaf binding equipment according to claim 8, characterized in that: The crossbeam of the gantry is equipped with a rodless cylinder for driving the mounting plate to move back and forth. The crossbeam and column of the gantry are hollow structures with their inner cavities connected. The column of the gantry is provided with a main air duct port connected to the air pump inlet, and the crossbeam of the gantry is provided with a primary air duct port. The suction cup mounting beam is also a hollow structure, and the suction cup mounting beam is provided with a secondary air duct port connected to the primary air duct port through an air duct. The upper side of the suction box is provided with a suction box air duct port, and the suction cup mounting beam is provided with a tertiary air duct port connected to the suction box air duct port through an air duct.

10. A method of operating the automatic tobacco leaf binding device as described in claim 1, characterized in that: Includes the following steps: (1) The tobacco weaving platform is moved to the front of the operating platform. The grabbing mechanism is used to pick up the tobacco leaves in the storage box and unload them onto the tobacco weaving platform. One end of the tobacco leaves covers the clamping clearance slot. The tobacco weaving platform moves backward intermittently so that the tobacco leaves are stacked in a staggered manner on the tobacco weaving platform. (2) After completing the first layer of tobacco leaves, repeat step (1) to complete the second layer of tobacco leaves; (3) After the two layers of tobacco leaves are laid on the tobacco weaving platform, the tobacco weaving platform is moved to the rear of the operating frame. The clamping clearance slot of the tobacco weaving platform is just in the clamping position of the tobacco clamp. The upper cover of the tobacco clamp is pressed down by the upper cover pressing mechanism, and at the same time the lower cover lifting mechanism of the tobacco clamp pushes the lower cover of the tobacco clamp upward to achieve the clamping of the upper cover of the tobacco clamp and the lower cover of the tobacco clamp. Then, the clamped tobacco clips and tobacco leaves are removed manually, completing one round of tobacco weaving.

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