A device for automatically separating raw tobacco leaves

Abstract

The present invention discloses an automatic raw tobacco leaf separation device, comprising a bracket, a tobacco pressing mechanism and a clamping mechanism. The bracket comprises a horizontally arranged square frame, and the inside of the square frame corresponds to the placement of cigarette packs to be separated. The tobacco pressing mechanism is arranged at the left end and / or the right end of the square frame, and the tobacco pressing mechanism can reciprocate along the front and rear frames of the square frame. The clamping mechanism is arranged at the left end and / or the right end of the bracket, and the clamping mechanism comprises a clamping device driving unit, an inclined guide rail and a clamping device installed on the inclined guide rail, and the clamping device driving unit drives the clamping device to slide along the inclined guide rail, and the clamping device is located above the tobacco pressing mechanism. The inclined guide rail is arranged on the bracket, and the inclined guide rail extends toward the opposite frame and obliquely upward along the left and right directions of the square frame. The present invention discloses an automatic raw tobacco leaf separation device, which realizes lossless separation of raw tobacco leaves from a state of compaction and adhesion, has a high degree of automation and efficiency, good stability, reduces manpower and reduces operating costs.

Description

Technical Field

[0001] The invention belongs to the field of cigarette making equipment, and in particular relates to an automatic raw tobacco leaf separating device. Background Art

[0002] At present, the production process of cigarette products generally goes through the production process of tobacco leaf initial baking, leaf beating and re-baking, tobacco leaf fermentation, cigarette formula, cigarette silk making, cigarette stick making, cigarette packaging, etc. Among them, tobacco leaf initial baking is the first link to turn the cultivated tobacco leaves into cigarette raw materials. It is the process of placing the fresh tobacco leaves harvested from the field in the baking room for baking and curing to make them into "raw tobacco", the raw materials of cigarettes. After baking, the tobacco leaves have undergone significant changes in the content, appearance and microstructure. The color of the tobacco leaves changes from yellow-green to yellow, and the water content of the tobacco leaves changes from the expanded state of 80-90% to withering, drying and even charring. After the initial baking of the tobacco leaves, the withered and dried tobacco leaves are usually bundled together for subsequent processing. The bundled tobacco leaves need to be pre-treated before production, such as separating the stacked or gathered tobacco leaves separately for subsequent production processing, such as tobacco leaf grading.

[0003] At present, the cigarette industry adopts manual selection and grading in the process of beating and re-drying tobacco leaves, which has the following problems: first, manual selection requires a large amount of labor, which increases the operating costs of the enterprise; second, manual selection places high demands on the operator's experience and ability, the quality of the finished tobacco leaves is greatly affected by manual factors, and there is a large deviation in the quality of the tobacco leaves after grading.

[0004] To solve the above problems, many domestic companies are trying to use fully automatic machines based on visual recognition, artificial intelligence and other technologies to grade tobacco leaves, which can effectively solve the above problems. At present, visual recognition technology, artificial intelligence deep learning algorithms and other technologies have become increasingly mature and can meet the requirements of tobacco leaf grading, but the tobacco leaves are required to be in a relatively flat single piece state.

[0005] In view of this, the present invention is proposed. Summary of the invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an automatic raw tobacco leaf separation device to achieve automatic and lossless separation of raw tobacco leaves.

[0007] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0008] The utility model relates to an automatic raw tobacco leaf separating device, which comprises a bracket, a tobacco pressing mechanism and a clamping claw mechanism.

[0009] The support comprises a horizontally arranged square frame, and the cigarette packs to be separated and opened are placed inside the square frame.

[0010] The smoke suppressing mechanism is arranged at the left end and / or the right end of the square frame, and the smoke suppressing mechanism can reciprocate along the front and rear frames of the square frame.

[0011] The clamp mechanism is arranged at the left end and / or the right end of the bracket, and the clamp mechanism includes a clamp device driving unit, an inclined guide rail, and a clamp device installed on the inclined guide rail. The clamp device driving unit drives the clamp device to slide along the inclined guide rail, and the clamp device is located above the smoke pressing mechanism. The inclined guide rail is arranged on the bracket, and the inclined guide rail extends along the left and right directions of the square frame toward the opposite frame and obliquely upward.

[0012] Furthermore, an automatic raw tobacco leaf separating device also includes a support leg and a lifting mechanism. The support leg is vertically arranged, and a lifting guide rail is arranged on the support leg. The bracket is connected to the lifting guide rail through a slider. The lifting mechanism connects the bracket and drives the bracket to rise and fall along the lifting guide rail.

[0013] Furthermore, an automatic raw tobacco leaf separating device also includes a support leg and a lifting mechanism, wherein the support leg is vertically connected to a bracket, and a lifting mechanism for lifting and lowering the cigarette package is arranged in the middle of a square frame of the bracket.

[0014] Furthermore, an automatic tobacco leaf separation device includes two sets of tobacco pressing mechanisms, and the tobacco pressing mechanisms include a tobacco pressing plate driving device and a tobacco pressing plate. The two tobacco pressing plate driving devices are respectively fixed to the left and right frames of the square frame of the bracket, and the free end of each tobacco pressing plate driving device is connected to a tobacco pressing plate.

[0015] Furthermore, a device for automatically separating raw tobacco leaves includes two sets of clamping mechanisms, wherein the bottom end of the inclined guide rail of one clamping mechanism is arranged at the right end of the bracket and extends toward the left side and upward of the bracket; the bottom end of the inclined guide rail of the other clamping mechanism is arranged at the left end of the bracket and extends toward the right side and upward of the bracket.

[0016] Furthermore, the clamping device comprises a clamping bracket, a clamping driving device and a clamping hand. The clamping driving device is fixed to the clamping bracket, and its free end is connected to and drives the clamping hand. The clamping bracket is installed on the inclined guide rail and can slide along the inclined guide rail.

[0017] Furthermore, the gripper is a two-jaw gripper, a three-jaw gripper, or a four-jaw gripper, and a plurality of grippers are arranged along the front-to-back direction of the bracket.

[0018] Furthermore, a plurality of grippers are driven by one gripper driving device, or a plurality of grippers are driven by corresponding plurality of gripper driving devices respectively.

[0019] Furthermore, the head of the smoke pressing plate is provided with a pin, and a plurality of the pins are arranged side by side at a certain interval, the rear of the pin is a cylinder, the front end is a cone, and the top of the pin is a plane.

[0020] Furthermore, the two-jaw gripper includes two connecting rods and two clamping arms. The gripper drive device is fixed to the top frame of the square frame-shaped gripper bracket, and its free end extends downward. The upper ends of the two connecting rods are rotatably connected to the free end of the gripper drive device through a pin shaft, and the lower ends of the two connecting rods are respectively rotatably connected to the upper ends of the two clamping arms through pin shafts. The two clamping arms intersect and the middle parts are rotatably connected to the bottom frame of the square frame-shaped gripper bracket through a limit shaft.

[0021] Furthermore, the three-jaw gripper includes three gripping arms, which are in the shape of a “>”. Each gripping arm is provided with a hole at the bend and a hole at the upper end. The upper end of each gripping arm is rotatably connected to the gripping arm bracket through a pin shaft through the hole; a widening plate is provided on the inner side of the lower end of the gripping arm; two of the gripping arms are located side by side on one side and are connected by a connecting rod passing through the hole at the bend, a rocker arm is rotatably connected to the connecting rod, and the third gripping arm is located on the opposite side and between the aforementioned two gripping arms, and its bending direction is opposite to the bending direction of the aforementioned two gripping arms; the third gripping arm is rotatably connected to another rocker arm at the bend through a pin shaft and the hole, and the upper ends of the two rocker arms are rotatably connected to the connecting plate through a pin shaft, and the connecting plate is fixedly connected to the free end of the gripping arm driving device, and the gripping arm driving device is fixed to the gripping arm bracket.

[0022] Furthermore, the four-jaw clamp comprises four clamping arms, namely a left front clamping arm, a left rear clamping arm, a right front clamping arm and a right rear clamping arm, which are arranged in front and behind the clamping bracket. Holes are provided on the upper parts of the four clamping arms, and three of the clamping arms are rotatably connected to the clamping bracket through the holes on their upper parts respectively cooperating with a pin shaft or a bolt, and the other clamping arm is connected to the free end of the clamping drive device through the hole, and the clamping drive device is fixed to the clamping bracket; teeth are provided on the periphery of the upper parts of the four clamping arms, and the left front clamping arm is meshed with the right front clamping arm through the teeth on their upper parts, and the left rear clamping arm is meshed with the right rear clamping arm through the teeth on their upper parts; the left front clamping arm is connected to the left rear clamping arm by a connecting arm, and the right front clamping arm is connected to the right rear clamping arm by a connecting arm; reinforcing arms are fixed to the four clamping arms by bolts, and there is a gap between the reinforcing arms and the clamping arms to which they are connected.

[0023] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0024] The invention discloses an automatic raw tobacco leaf separation device, comprising a bracket, a tobacco pressing mechanism and a clamping mechanism. The bracket comprises a horizontally arranged square frame, and the inside of the square frame is correspondingly placed with a cigarette pack to be separated. The tobacco pressing mechanism is arranged at the left end and / or the right end of the square frame, and the tobacco pressing mechanism can reciprocate along the front and rear frames of the square frame. The clamping mechanism is arranged at the left end and / or the right end of the bracket, and the clamping mechanism comprises a clamping device driving unit, an inclined guide rail and a clamping device installed on the inclined guide rail, and the clamping device driving unit drives the clamping device to slide along the inclined guide rail, and the clamping device is located above the tobacco pressing mechanism. The inclined guide rail is arranged on the bracket, and the inclined guide rail extends toward the opposite frame and obliquely upward along the left and right directions of the square frame. The invention discloses an automatic raw tobacco leaf separation device, which realizes the separation of raw tobacco sheets from the state of being hardened and adhered one by one, so as to realize the lossless separation of raw tobacco sheets, has high automation and efficiency, good stability, and adopts a reliable mechanical device to realize the automatic separation process of raw tobacco sheets, which can reduce a large amount of manpower and reduce operating costs, and is convenient for the processing of subsequent intelligent grading processes.

[0025] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0027] Figure 1 It is a structural schematic diagram of a first embodiment of an automatic raw tobacco leaf separating device of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a second embodiment of an automatic raw tobacco leaf separation device of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of a clamping device of an automatic raw tobacco leaf separation device of the present invention;

[0030] Figure 4 yes Figure 3 A partial enlarged schematic diagram of the structure of the clamping device shown;

[0031] Figure 5 It is another structural schematic diagram of a clamping device of an automatic raw tobacco leaf separating device of the present invention.

[0032] Figure 6 The present invention is a schematic diagram of the structure of a tobacco pressing plate of an automatic raw tobacco leaf separation device.

[0033] Figure 7 It is a schematic diagram of the structure of the pins of the smoke pressing plate.

[0034] Figure 8 It is a schematic diagram of the structure of the clamping device of the three-jaw gripper.

[0035] Fig. 9 It is a schematic diagram of the structure of the clamping device of the four-jaw gripper.

[0036] In the figure: 1, leg; 2, lifting mechanism; 3, lifting guide rail; 4, bracket; 41, square frame; 5, cigarette pressing plate driving device; 6, cigarette pressing plate; 61, pin; 7, translation guide rail; 8, clamping device; 81, clamping bracket; 82, clamping driving device; 83, two-claw clamp; 831, connecting rod; 832, clamping arm; 833, limit shaft; 84, slider; 85, crossbeam; 86, three-claw clamp; 861 , clamping arm; 862, connecting rod; 863, rocker arm; 864, connecting plate; 87, four-claw clamp; 871, left front clamping arm; 872, right front clamping arm; 873, right rear clamping arm; 874, left rear clamping arm; 875, connecting arm; 876 driving shaft; 877, reinforcing arm; 9, inclined guide rail; 10, clamping device drive unit; 11, belt conveyor; 12, cigarette packs to be separated; 13, cigarette packs being separated.

[0037] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0039] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] Embodiment 1

[0042] like Figure 1 As shown, the invention provides an automatic raw tobacco leaf separating device, comprising a support leg 1, a lifting mechanism 2, a bracket 4, a tobacco pressing mechanism and a clamping claw mechanism.

[0043] The support 4 comprises a horizontally arranged square frame 41, the interior of the square frame 41 is hollow, corresponding to the placement of the cigarette packs to be separated.

[0044] A lifting guide rail 3 is arranged on the vertically arranged supporting leg 1 , a bracket 4 is connected to the lifting guide rail 3 via a slider, and a lifting mechanism 2 is connected to the bracket 4 and drives the bracket 4 to be lifted and lowered along the lifting guide rail 3 .

[0045] The lifting mechanism 2 can use a cylinder, a motor or other driving units to provide power, and the present application prefers cylinder drive.

[0046] The smoke suppression mechanism is arranged at the left end and / or the right end of the square frame. In this embodiment, two sets of smoke suppression mechanisms are included. The smoke suppression mechanisms are arranged at the left end and the right end of the square frame, and the smoke suppression mechanisms can reciprocate along the front and rear frames of the square frame.

[0047] The two smoke suppression mechanisms are respectively arranged at the left and right ends of the square frame, which means that the smoke suppression mechanisms are located at the left and right ends of the entire square frame, rather than the front and back ends. The smoke suppression mechanisms can be fixed on the left and right frames, or on the front and back frames, as long as they are at the left and right ends of the square frame and can make reciprocating motion in the left and right directions along the front and back frames of the square frame.

[0048] like Figure 1 As shown, the smoke pressing mechanism includes a smoke pressing plate driving device 5 and a smoke pressing plate 6. The two smoke pressing plate driving devices 5 are respectively fixed to the left and right frames of the square frame 41 of the bracket 4. The free end of each smoke pressing plate driving device 5 is connected to a smoke pressing plate 6.

[0049] The smoke pressing plate driving device 5 may be a cylinder, a motor or other linear driving units, and cylinder driving is preferred in the present application.

[0050] Translation guide rails 7 are arranged on the front and rear frames of the square frame 41 of the bracket 4. Under the drive of the smoke pressing plate driving device 5, the two smoke pressing plates 6 of the smoke pressing mechanism can move toward the center of the bracket 4 or retreat to the left or right frame of the square frame 41 along the front and rear frames of the square frame 41 through the translation guide rails 7 to realize reciprocating translation motion.

[0051] Combination Figure 6 , 7 As shown, the head of the cigarette pressing plate 6 (i.e., the part thereof facing the middle of the bracket horizontally) has a pin 61, and a plurality of pins 61 are arranged side by side at a certain interval, the rear of the pin 61 is a cylinder, the front end is a cone, and the top of the pin 61 is a plane. There is a certain angle between the upper and lower surfaces of the pin, and this shape can achieve different forces on the upper and lower surfaces of the material after the cigarette pack is inserted, which is conducive to the insertion and pressing of the mechanism.

[0052] In this embodiment, the cigarette pressing plate 6 includes a horizontal plate and a vertical plate connected to each other. A pin is provided at the head of the horizontal plate, and the top of the pin 61 is in a plane with the top of the horizontal plate; the tail of the vertical plate is connected to the cigarette pressing plate driving device 5, and the two sides of the vertical plate are connected to the translation guide rail 7 through a slider or the vertical plate is directly connected to the translation guide rail 7 to move on the translation guide rail.

[0053] The clamping mechanism is arranged at the left end and / or the right end of the bracket, and the clamping mechanism includes a clamping device driving unit 10, an inclined guide rail 9 and a clamping device 8 installed on the inclined guide rail. The clamping device driving unit 10 is fixed to the top end of the inclined guide rail 9, and drives the clamping device 8 to slide along the inclined guide rail 9. The clamping device 8 is located above the tobacco pressing mechanism. In this way, when separating the tobacco leaves, the cigarette pack is pressed by the tobacco pressing mechanism, and then the tobacco leaves are separated from above by the clamping device 8.

[0054] The inclined guide rail 9 is disposed on the bracket, and the inclined guide rail 9 extends along the left-right direction of the square frame 41 toward the opposite frame and obliquely upward.

[0055] In this embodiment, two sets of clamping mechanisms are included. The bottom end of the inclined guide rail 9 of one clamping mechanism is arranged at the right end of the bracket 4 and extends to the left side of the bracket 4 and upward.

[0056] The bottom end of the inclined guide rail 9 of the other clamping jaw mechanism is arranged at the left end of the bracket and extends toward the right side of the bracket 4 and upward.

[0057] The two inclined guide rails 9 are respectively located at the front and rear sides of the bracket 4, rather than on the same side of the bracket.

[0058] like Figure 3 As shown, the clamping device 8 includes a clamping hand bracket 81, a clamping hand driving device 82 and a clamping hand.

[0059] The gripper driving device 82 is fixed on the gripper bracket 81, and its free end is connected to and drives the gripper. The gripper bracket 81 is installed on the inclined guide rail 9 and can slide along the inclined guide rail 9. The gripper driving device 82 can be a cylinder, a motor or other linear drive unit, and the present application preferably uses a cylinder drive.

[0060] The gripper is a two-claw gripper, a three-claw gripper, or a four-claw gripper, and a plurality of grippers 83 are arranged along the front-to-back direction of the bracket 4 .

[0061] Combination Figure 1 , 3 As shown in Figure 4, in this embodiment, the gripper adopts a two-jaw gripper 83, the middle part of the two-jaw gripper 83 is rotatably fixed on the gripper bracket 81 through an axis, and the upper end of the two-jaw gripper 83 is connected to the free end of the gripper driving device 82. The lower end of the two-jaw gripper 83 is closed or opened by pulling up or pushing down the gripper driving device 82.

[0062] Specifically, the two-jaw gripper 83 includes two connecting rods 831 and two clamping arms 832. The gripper drive device 82 is fixed to the top frame of the square frame-shaped gripper bracket 81, and its free end extends downward. The upper ends of the two connecting rods 831 are rotatably connected to the free end of the gripper drive device 82 through a pin shaft, and the lower ends of the two connecting rods 831 are rotatably connected to the upper ends of the two clamping arms 832 through pin shafts respectively. The two clamping arms 832 intersect and the middle parts are rotatably connected to the bottom frame of the square frame-shaped gripper bracket 81 through a limit shaft 833.

[0063] In this embodiment, the plurality of grippers are driven respectively by corresponding plurality of gripper driving devices 82 .

[0064] like Figure 5 As shown, in other embodiments, multiple grippers are driven by a gripper driving device 82. The clamping device 8 includes a gripper bracket 81, a gripper driving device 82, a gripper, a slider 84, and a crossbeam 85. The gripper bracket 81 is in a square frame shape, and a crossbeam 85 is provided in the middle thereof. The horizontal ends of the crossbeam 85 are movably connected to the vertical bars of the left and right vertical frames of the gripper bracket 81 through sliders 84 and can slide up and down along them; the gripper driving device 82 is fixed to the upper frame of the gripper bracket 81, and the free end of the gripper driving device 82 is connected to the crossbeam 85. The upper end of the two-claw gripper 83 is rotatably connected to the crossbeam 85 through an axis, and the middle part of the two-claw gripper 83 is rotatably connected to the lower frame of the gripper bracket 81 through an axis. The crossbeam is driven up and down by the gripper driving device 82, thereby driving the two-claw gripper 83 to move, and the lower end of the two-claw gripper is closed or opened by pulling up or pushing down the gripper driving device 82.

[0065] In other embodiments, the gripper is a three-jaw gripper 86. Figure 8As shown, the three-claw gripper 86 includes three gripping arms 861, which are in a ">" shape. Each gripping arm 861 has a hole at its bend and a hole at its upper end. The upper ends of the three gripping arms 861 are rotatably connected to the gripper bracket through the holes and each is matched with a pin shaft. A widening piece is provided on the inner side of the lower end of the gripping arm 861 to increase the contact between the gripping arm 861 and the tobacco leaf.

[0066] Two clamp arms 861 are arranged side by side on one side and connected by a connecting rod 862 passing through a hole at the bend. A rocker arm 863 is rotatably connected to the connecting rod 862.

[0067] The third clamping arm 861 is located at the opposite side and between the two clamping arms 861 , and its bending direction is opposite to the bending directions of the two clamping arms 861 .

[0068] The third clamping arm 861 is rotatably connected to another rocker arm 863 at the bend through a pin and a hole. The upper ends of the two rocker arms 863 are rotatably connected to a connecting piece 864 through a pin. The connecting piece 864 is fixedly connected to the free end of the clamping hand driving device, and the clamping hand driving device is fixed on the clamping hand bracket.

[0069] Through the lifting action of the free end of the clamping hand driving device, the connecting piece 864 is driven to move up and down, thereby driving the upper ends of the two rocker arms 863 to lift and lower and the angle between the two rocker arms 863 to change, thereby driving the three clamping arms 861 on both sides to move to form the clamping and opening between the three clamping arms 861.

[0070] Figure 8 Only one three-jaw gripper 86 is shown in the figure. In actual production, Figure 3 or Figure 5 Likewise, a plurality of three-jaw grippers 86 are arranged in parallel.

[0071] In other embodiments, the gripper is a four-claw gripper 87. Fig. 9 As shown, the four-jaw clamp includes four clamping arms, namely a left front clamping arm 871, a left rear clamping arm 874, a right front clamping arm 872, and a right rear clamping arm 873, which are arranged in front and behind the clamping bracket. Holes are provided on the upper parts of the four clamping arms. Three of the clamping arms are rotatably connected to the clamping bracket through the holes on their upper parts, each of which cooperates with a pin shaft or a bolt. The other clamping arm is connected to the free end of the clamping drive device through the hole, and the clamping drive device is fixed on the clamping bracket.

[0072] The four clamping arms are all provided with teeth on their upper peripheries. The left front clamping arm 871 and the right front clamping arm 872 are meshed with each other through the teeth on their upper portions, and the left rear clamping arm 874 and the right rear clamping arm 873 are meshed with each other through the teeth on their upper portions.

[0073] The left front clamping arm 871 is connected to the left rear clamping arm 874 via a connecting arm 875 , and the right front clamping arm 872 is connected to the right rear clamping arm 873 via a connecting arm 875 .

[0074] like Fig. 9 As shown, in this embodiment, the left front clamp arm 871 is connected to the clamping hand driving device. Here, the clamping hand driving device 82 is a motor. The left front clamp arm 871 connected thereto is driven to rotate by the driving shaft 876 of the motor. Since the teeth of the left front clamp arm 871 and the upper part of the right front clamp arm 872 are meshed with each other, the right front clamp arm 872 can be driven to rotate relatively; and since the left front clamp arm 871 and the left rear clamp arm 874 are connected by the connecting arm 875, the left rear clamp arm 874 can be driven to rotate in the same direction; and since the right front clamp arm 872 and the right rear clamp arm 873 are connected by the connecting arm 875, and the teeth of the left rear clamp arm 874 and the upper part of the right rear clamp arm 873 are meshed with each other, the right rear clamp arm 873 can rotate in the same direction with the right front clamp arm 872, thereby realizing the action of the four clamp arms forming a hug or loosening.

[0075] The four clamping arms are all fixed with reinforcing arms 877 by bolts, and there is a gap between the reinforcing arms 877 and the clamping arms connected thereto. By adding the reinforcing arms 877, the contact with the tobacco leaves can be increased, and the clamping stability can be improved.

[0076] Fig. 9 Only one four-claw gripper 87 is shown in the figure. In actual production, Figure 3 or Figure 5 Similarly, a plurality of four-claw grippers 87 are arranged in parallel.

[0077] When working, the initial position of the whole equipment is: the lifting mechanism 2 pushes the bracket 4 to move upward, so that the tobacco pressing mechanism and the clamping mechanism connected to the bracket 4 move together. The clamping mechanism and the tobacco pressing mechanism are pushed to the top of the equipment, and the two clamping devices 8 are both on the upper part of the inclined guide rail 9 where they are located. The two tobacco pressing mechanisms are both located on the outside, that is, at the left and right ends of the square frame 41 of the bracket 4. After the sacks of the cigarette packs are manually removed, they are placed on the conveying belt of the belt conveyor 11. The tobacco leaves in the cigarette packs are divided into left and right parts, the tips of the tobacco leaves in the left and right parts are opposite, and the tobacco stems are stacked outward. When the cigarette pack 12 to be separated and opened runs to the lower position of the separation device, that is, when the cigarette pack runs into the square frame 41, the belt conveyor stops running, the lifting mechanism 2 drops a certain height according to the set displacement, the cigarette pressing mechanisms on both sides advance, the pins 61 press the cigarette pack from the top, and a clamping device driving unit 10 of a set of clamping claw mechanisms drives the clamping device 8 to move obliquely downward along the oblique guide rail 9 to reach the position, and the clamping hand clamps the tobacco slices and stems, and the clamping device driving unit 10 drives the clamping device 8 to move obliquely upward, gradually moving the clamped tobacco slices from the stem end to the The tip of the leaf is torn apart and separated from the other adjacent tobacco leaves above and below. When the clamping device 8 runs obliquely upward to the top of the inclined guide rail 9, the clamped tobacco leaves are completely separated from the pressed tobacco leaves. At this time, the clamping hand driving device 82 drives the clamping hand to open, and the separated tobacco leaves fall freely into the conveying equipment at the lower part and are sent to the lower process. At this time, another set of clamping claw mechanisms starts to work and performs the same work from the other end of the cigarette package, clamping the tobacco stems of the tobacco leaves on the other side to separate the tobacco leaves from other tobacco leaves. At this time, this cigarette package is called a separating cigarette package 13.

[0078] After the two sets of clamping mechanisms and the tobacco pressing mechanism complete the work of separating the tobacco sheets from both sides respectively, the lifting mechanism 2 descends again by a certain height according to the set displacement, and then repeats the above movement until it reaches the set lowest point. At this time, all the tobacco leaves in the cigarette package are separated, and the belt conveyor 11 moves to convey the next cigarette package, and so on and so forth, so that the original tobacco sheets are separated layer by layer without loss, so as to achieve the effect of forming a single sheet.

[0079] The present invention utilizes the device to separate the original tobacco sheets piece by piece from the state of being compacted and adhered, so as to facilitate the subsequent intelligent grading process. The patented equipment can realize the non-destructive separation of the original tobacco sheets, with high automation and efficiency and good stability.

[0080] The invention can realize the lossless separation of raw tobacco sheets in a hardened and adhered state, with high automation, efficiency and stability. The reliable mechanical device is used to realize the automatic separation process of raw tobacco sheets, which can reduce a lot of manpower and reduce operating costs.

[0081] The invention discloses an automatic raw tobacco leaf separation device, comprising a bracket, a tobacco pressing mechanism and a clamping mechanism. The bracket comprises a horizontally arranged square frame, and the inside of the square frame is correspondingly placed with a cigarette pack to be separated. The tobacco pressing mechanism is arranged at the left end and / or the right end of the square frame, and the tobacco pressing mechanism can reciprocate along the front and rear frames of the square frame. The clamping mechanism is arranged at the left end and / or the right end of the bracket, and the clamping mechanism comprises a clamping device driving unit, an inclined guide rail and a clamping device installed on the inclined guide rail, and the clamping device driving unit drives the clamping device to slide along the inclined guide rail, and the clamping device is located above the tobacco pressing mechanism. The inclined guide rail is arranged on the bracket, and the inclined guide rail extends toward the opposite frame and obliquely upward along the left and right directions of the square frame. The invention discloses an automatic raw tobacco leaf separation device, which realizes the separation of raw tobacco sheets from the state of being hardened and adhered one by one, so as to realize the lossless separation of raw tobacco sheets, and has high automation and efficiency and good stability. The use of a reliable mechanical device to realize the automatic separation process of raw tobacco sheets can reduce a large amount of manpower and reduce operating costs, and is convenient for the processing of subsequent intelligent grading processes.

[0082] Embodiment 2

[0083] The difference between this embodiment and the first embodiment is that: Figure 2 As shown, a lifting mechanism for lifting and lowering the cigarette pack is arranged in the middle of the square frame 41 of the bracket 4.

[0084] The bracket 4 is fixed, so that the height of the smoke pressing mechanism is fixed.

[0085] The lifting mechanism 2 is not connected to the bracket 4 to lift the bracket 4, but lifts the cigarette pack located in the middle of the square frame 41 of the bracket 4, thereby changing the relative height between the cigarette pack being opened and the cigarette pressing mechanism and the clamping claw mechanism arranged on the bracket 4.

[0086] During operation, the sacks are manually removed and the cigarette packs are placed on the tray of the lifting mechanism in the middle of the square frame 41 of the bracket 4. At this time, the tray is in the lowest position, and its tobacco pressing mechanism and the clamping mechanism work as described in Example 1 to separate the tobacco sheets layer by layer. When the height of the tobacco leaves on the cigarette packs is reduced after separation, the lifting mechanism 2 can realize intermittent support upwards according to a certain displacement. The lifting mechanism 2 lifts the remaining tobacco leaves in the cigarette packs upwards to meet the separation height requirements until the lifting mechanism reaches the highest position, and the separation of the cigarette packs is completed.

[0087] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A device for automatically separating raw tobacco leaves, characterized by: It includes a bracket, a smoke pressing mechanism and a clamping claw mechanism. The support includes a horizontally arranged square frame, and the cigarette packs to be separated are placed inside the square frame. The two sets of smoke suppression mechanisms are respectively arranged at the left and right ends of the square frame, and the smoke suppression mechanisms can reciprocate along the front and rear frames of the square frame. The smoke pressing mechanism includes a smoke pressing plate driving device and a smoke pressing plate. Two cigarette pressing plate driving devices are respectively fixed to the left frame and the right frame of the square frame of the bracket, and the free end of each cigarette pressing plate driving device is connected to a cigarette pressing plate; The head of the cigarette pressing plate has a pin, and a plurality of pins are arranged side by side at a certain interval, the rear of the pin is a cylinder, the front end is a cone, and the top of the pin is a plane; The two sets of clamping mechanisms are respectively arranged at the left and right ends of the bracket, and the clamping mechanism includes a clamping device driving unit, an inclined guide rail, and a clamping device installed on the inclined guide rail. The bottom end of the inclined guide rail of one clamping claw mechanism is arranged at the right end of the bracket and extends to the left side of the bracket and upwards, and the bottom end of the inclined guide rail of the other clamping claw mechanism is arranged at the left end of the bracket and extends to the right side of the bracket and upwards; The clamping device driving unit drives the clamping device to slide along the inclined guide rail, and the clamping device is located above the tobacco pressing mechanism; the clamping device includes a clamping hand, which is used to clamp the tobacco leaves. The inclined guide rail is arranged on the bracket, and extends along the left and right directions of the square frame toward the opposite frame and obliquely upwards; When the clamping device clamping the tobacco leaves runs obliquely upward to the top of the inclined guide rail, the clamped tobacco leaves are completely separated from the pressed tobacco leaves, so that the original tobacco leaves can be separated layer by layer without loss.

2. The device for automatically separating raw tobacco leaves according to claim 1, characterized in that: It also includes legs and a lifting mechanism. The legs are vertically arranged, and lifting guide rails are arranged on the legs. The bracket is connected to the lifting guide rails through a slider. The lifting mechanism connects the bracket and drives the bracket to rise and fall along the lifting guide rails.

3. The device for automatically separating raw tobacco leaves according to claim 1, characterized in that: It also includes legs and a lifting mechanism. The legs are vertically connected to the bracket, and a lifting mechanism for lifting and lowering the cigarette package is arranged in the middle of the square frame of the bracket.

4. The device for automatically separating raw tobacco leaves according to any one of claims 1 to 3, characterized in that: The clamping device also includes a clamping bracket and a clamping driving device. The gripper driving device is fixed on the gripper bracket, the free end of the gripper driving device is connected to and drives the gripper, and the gripper bracket is installed on the inclined guide rail and can slide along the inclined guide rail.

5. The device for automatically separating raw tobacco leaves according to claim 4, characterized in that: The gripper is a two-claw gripper, a three-claw gripper or a four-claw gripper, and multiple grippers are arranged along the front and rear direction of the bracket; multiple grippers are driven by one gripper driving device, or multiple grippers are driven by corresponding multiple gripper driving devices respectively.

6. The device for automatically separating raw tobacco leaves according to claim 5, characterized in that: The two-jaw gripper includes two connecting rods and two clamping arms. The gripper driving device is fixed to the top frame of the square frame-shaped gripper bracket. The free end of the gripper driving device extends downward. The upper ends of the two connecting rods are rotatably connected to the free end of the gripper driving device through a pin shaft. The lower ends of the two connecting rods are respectively rotatably connected to the upper ends of the two clamping arms through pin shafts. The two clamping arms intersect and the middle parts are rotatably connected to the bottom frame of the square frame-shaped gripper bracket through a limit shaft.

7. The device for automatically separating raw tobacco leaves according to claim 5, characterized in that: The three-claw gripper comprises three gripping arms, which are in the shape of "">". Each gripping arm has a hole at its bend and a hole at its upper end. The upper end of each gripping arm is rotatably connected to the gripping arm bracket through a pin shaft. A widening piece is provided on the inner side of the lower end of the gripping arm. Two clamp arms are arranged side by side on one side and connected by a connecting rod passing through a hole at the bend, and a rocker arm is rotatably connected to the connecting rod. The third clamp arm is located on the opposite side and between the aforementioned two clamp arms, and its bending direction is opposite to the bending direction of the aforementioned two clamp arms; the bending part of the third clamp arm is rotatably connected to another rocker arm through a pin shaft and a hole, and the upper ends of the two rocker arms are rotatably connected to the connecting plate through a pin shaft, and the connecting plate is fixedly connected to the free end of the clamping hand driving device, and the clamping hand driving device is fixed on the clamping hand bracket.

8. The device for automatically separating raw tobacco leaves according to claim 5, characterized in that: The four-claw clamp includes four clamping arms, namely, a left front clamping arm, a left rear clamping arm, a right front clamping arm, and a right rear clamping arm, which are arranged in front and behind the clamping bracket. The upper parts of the four clamping arms are provided with holes, and three of the clamping arms are rotatably connected to the clamping bracket through the holes in the upper parts thereof, respectively, in cooperation with a pin shaft or a bolt, and the other clamping arm is connected to the free end of the clamping driving device through the hole, and the clamping driving device is fixed to the clamping bracket; The four clamping arms are all provided with teeth on the periphery of the upper parts, the left front clamping arm and the right front clamping arm are meshed with each other through the teeth on the upper parts thereof, and the left rear clamping arm and the right rear clamping arm are meshed with each other through the teeth on the upper parts thereof; The left front clamping arm is connected to the left rear clamping arm via a connecting arm, and the right front clamping arm is connected to the right rear clamping arm via a connecting arm; A reinforcement arm is fixed to each of the four clamping arms by means of bolts, and a gap is provided between the reinforcement arm and the connected clamping arm.

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