A bar-shaped object caching device and caching method using a turnover box to realize first-in-first-out

Abstract

The present invention discloses a stick-shaped object caching device and a caching method thereof which use a turnover box to realize first-in-first-out, which are used for caching cigarettes or other stick-shaped objects. The caching device comprises: a feeding device, a box loading device, a full box caching mechanism, an empty box caching mechanism, a full box and empty box shifting machine, a box unloading device, a discharging device and a turnover box; at least three groups of empty box caching mechanisms are used to cache and convey empty turnover boxes without stick-shaped objects, and at least three groups of full box caching mechanisms are used to cache and convey fully loaded turnover boxes filled with stick-shaped objects; when needed, the cached stick-shaped objects are flowed into a packaging machine through the box unloading device and the discharging device, thereby improving production efficiency. The working method is reasonably designed, simple in principle, and conforms to the caching process. The cached cigarettes comply with the first-in-first-out requirement, thereby avoiding long-term caching of cigarettes and damage to quality.

Description

Technical Field

[0001] The invention relates to the technical field of cache process devices, in particular to a rod-shaped object cache device and a cache method thereof that uses a turnover box to realize first-in-first-out. Background Art

[0002] In the cigarette production process, due to the needs of the production process, the cigarette making machine and the packaging machine are two devices. Considering that both devices may malfunction during operation, in order to improve production efficiency and reduce downtime, it is necessary to add a cache device between the two devices. That is, when the packaging machine fails, the cigarettes produced by the cigarette making machine are automatically stored in the cache device. When the cigarette making machine fails, the cigarettes in the cache device are automatically supplied to the packaging machine, and the first-in-first-out principle is implemented to ensure the continuous operation of the equipment.

[0003] The caching devices in the existing technologies and equipment all have cigarette flow transmission in terms of storage process, and are divided into first-in-first-out and first-in-last-out in terms of cigarette storage time. According to the impact on the quality and taste of cigarettes, the existing equipment and technologies have not completely solved the existing problems. Therefore, it is a demand to upgrade and improve the existing technologies and equipment. Summary of the invention

[0004] In view of the above problems, the present invention discloses a rod-shaped object caching device and a caching method thereof which use a turnover box to realize first-in-first-out.

[0005] The specific technical solutions are as follows:

[0006] A rod-shaped object buffer device that uses a turnover box to realize first-in-first-out, is arranged between a cigarette making machine and a packaging machine, wherein the buffer device comprises: a feeding device, a box loading device, a full box buffer mechanism, an empty box buffer mechanism, a full box and empty box shifting machine, a box unloading device, a discharging device and a turnover box;

[0007] The feeding device is used to convey the rod-shaped objects to the inlet of the box-packing device;

[0008] The box loading device takes out an empty turnover box from the empty box buffer mechanism and loads the rod-shaped objects into it, and puts the turnover box filled with the rod-shaped objects onto the belt conveyor of the full box buffer mechanism;

[0009] The full box buffer mechanism is used to buffer and convey the fully loaded turnover boxes filled with rod-shaped objects, and the number of the full box buffer mechanism is at least three groups;

[0010] The empty box buffer mechanism is used to buffer and transport empty turnover boxes without rod-shaped objects, and the number of the empty box buffer mechanism is at least three groups;

[0011] The full box and empty box transfer machine is used to transfer the fully loaded turnover boxes and the empty turnover boxes after unloading, and transfer the rod-shaped objects in the fully loaded turnover boxes to the packaging machine in the order of first-in-first-out, and transfer the empty turnover boxes to the empty box buffer mechanism when necessary;

[0012] The box unloading device is used to unload the fully loaded turnover boxes stored on the full box buffer mechanism according to the first-in-first-out principle to the discharging device when needed, and put the unloaded empty turnover boxes on the empty box buffer mechanism;

[0013] The discharging device is used to convey the rod-shaped objects discharged by the box unloading device to the packaging machine channel.

[0014] Furthermore, the turnover box comprises a box body of a rectangular parallelepiped structure, one side wall of the box body is an open structure, the bottom wall of the box body is installed on the box body in a pull-out manner, and a positioning slot is provided on the bottom wall of the box body.

[0015] Furthermore, the feeding device includes a feeding channel, in which a chain conveyor or a belt conveyor is provided.

[0016] Further, the empty box buffer mechanism and the full box buffer mechanism are arranged in two columns in the horizontal direction; in one of the columns, the first empty box buffer mechanism is located at the top, and the first full box buffer mechanism and the second full box buffer mechanism are arranged below the first empty box buffer mechanism in sequence; in the other column, the third full box buffer mechanism is arranged at the bottom, and the third empty box buffer mechanism and the second empty box buffer mechanism are arranged above the third full box buffer mechanism in sequence;

[0017] The full and empty box shifting machine is arranged behind the two rows of empty box buffer mechanisms and the full box buffer mechanism;

[0018] The front of the two rows of empty box cache mechanisms and full box cache mechanisms is used to place a box loading device and a box unloading device. The first full box cache mechanism and the second full box cache mechanism are arranged corresponding to the box unloading device, and the second empty box cache mechanism and the third empty box cache mechanism are arranged corresponding to the box loading device; the box loading device is connected to the connecting conveying channel of the cigarette making machine and the packaging machine through a feeding device, and the box unloading device is connected to the connecting conveying channel of the cigarette making machine and the packaging machine through a discharging device.

[0019] Furthermore, the empty box caching mechanism and the full box caching mechanism both include a bracket, in which a belt conveyor is provided.

[0020] Further, the box loading device includes an empty box taking out mechanism, a full box lowering mechanism, a variable bin mechanism, a push plate mechanism and a valve mechanism;

[0021] The empty box taking-out mechanism is correspondingly arranged in front of the third empty box buffer mechanism, and the empty box taking-out mechanism includes two sets of transmission components arranged in mirror image, and each set of transmission components includes a first push rod, a second push rod, a third push rod and a fourth push rod, the first push rod is horizontally arranged above the third push rod, the two ends of the second push rod are respectively hinged at the rear ends of the first push rod and the third push rod, the two ends of the fourth push rod are respectively hinged at the front ends of the first push rod and the third push rod, and the bottom of the fourth push rod extends downward to form a pushing end;

[0022] The hinged joints of the second push rod and the third push rod of each transmission assembly can be rotatably sleeved on the transmission shaft of the belt conveyor of the third empty box buffer mechanism, a plurality of pressure-bearing rods are horizontally connected between the first push rods of the two transmission assemblies, a fifth push rod is horizontally connected between the pushing ends of the fourth push rods of the two transmission assemblies, and the end of the driving rod of the cylinder fixed on the bracket can be rotatably fixed on the fifth push rod;

[0023] In the initial state, the cylinder drives the pressure rod to move to the inner part of the belt conveyor; when the empty turnover box needs to be taken out, the driving rod of the cylinder contracts inward to drive the fourth push rod to rotate, so that the empty turnover box pressed on the pressure rod drives the empty turnover box to move upward and forward out of the third empty box buffer mechanism;

[0024] The full box descending mechanism includes a first transfer mechanism, which is arranged corresponding to the third empty box buffer mechanism. The first transfer mechanism includes two vertically arranged support frames, each of which is respectively provided with a driving wheel, a driven wheel and a chain, the driving wheel and the driven wheel are arranged up and down, and are rotatably connected to the support frame, the chain is wound around the driving wheel and the driven wheel, and a lifting plate is fixedly connected thereto, the lifting plates on the two support frames are arranged correspondingly, and the movement of the lifting plates drives the turnover box to move up and down;

[0025] The variable silo mechanism includes a silo shell, the top of which is connected to the feed channel, a side baffle, a rodless cylinder and a movable plate are arranged in the silo shell, two vertically arranged side baffles are relatively fixed in the silo shell, a slide groove is vertically arranged on the side baffle, a rodless cylinder is fixed on the outer side of each side baffle, the movable plate is horizontally arranged between the two side baffles, the slider of the rodless cylinder passes through the slide groove and is fixedly connected to the movable plate, and the rodless cylinder controls the movable plate to move up and down in the silo shell;

[0026] The push plate mechanism includes a first electric push rod fixed in the silo housing, the first electric push rod is fixedly connected to the push plate box, the bottom of the push plate box is arranged above the moving plate, the first electric push rod is arranged in front of the moving plate, and the first electric push rod pushes the push plate box to move forward and backward;

[0027] The valve mechanism includes a second electric push rod fixed in the silo housing, the second electric push rod is arranged above the push plate mechanism, the second electric push rod is fixedly connected to the valve, and the valve is fixed on the top of the push plate box body so as to be movable forward and backward;

[0028] The push plate box and the valve can be pushed between the two side baffles;

[0029] The box loading steps of the box loading device are as follows: when box loading is needed, the empty turnover box located on the third empty box cache mechanism is taken out by the empty box taking-out mechanism and placed on the full box descending mechanism, and the movable plate of the variable material bin mechanism gradually drops from the highest position to the lowest position, and then the push plate mechanism and the valve mechanism push the rod-shaped object of the variable material bin into the empty box. After the rod-shaped object is pushed into the empty box, the push plate mechanism withdraws, and the movable plate of the variable material bin mechanism quickly moves up from the lowest position to the highest position and then the valve mechanism withdraws, and the fully loaded turnover box descends with the full box descending mechanism to the third full tray cache mechanism for box loading.

[0030] Furthermore, the full and empty box shifting machine includes a lifter, a first horizontal slide rail and a first telescopic guide rail. The first horizontal slide rail is connected to the lifter and is vertically lifted and lowered by the lifter. The first telescopic guide rail is installed on the first horizontal slide rail and its horizontal movement is controlled by the first horizontal slide rail. A shift plate is connected to the end of the first telescopic guide rail, and the shift plate is used to support turnover boxes in an empty state or turnover boxes in a fully loaded state.

[0031] Furthermore, the discharging device includes a discharging channel, and a chain conveyor or a belt conveyor is provided in the discharging channel.

[0032] Furthermore, the box unloading device includes a full box taking-out mechanism, a full box lifting mechanism, a full box and empty box grabbing mechanism, and a turnover box moving bottom plate pulling mechanism;

[0033] The full box taking-out mechanism is fixed in front of the belt conveyor of the first full box buffer mechanism and the second full box buffer mechanism, and the structure of the full box taking-out mechanism is the same as that of the empty box taking-out mechanism;

[0034] The full box lifting mechanism includes a second transplanting mechanism, the second transplanting mechanism is arranged corresponding to the first full box buffering mechanism, the structure of the second transplanting mechanism is the same as that of the first transplanting mechanism, and the second transplanting mechanism and the first transplanting mechanism share a supporting frame;

[0035] The full box and empty box grabbing mechanism comprises a second horizontal slide rail, a second telescopic guide rail and a clamping cylinder. The second horizontal slide rail is fixed in front of the first empty box buffer mechanism. The second telescopic guide rail is installed on the lower side of the second horizontal slide rail and moves horizontally through the second horizontal slide rail. The clamping cylinder is installed at the end of the second telescopic guide rail and is controlled to rise and fall vertically by the second telescopic guide rail.

[0036] The turnover box movable bottom plate pulling mechanism comprises a supporting bottom plate, which is horizontally fixed behind the box unloading port of the discharging channel, and a pull plate is movably provided on the supporting bottom plate, and the pull plate is driven to move by a third electric push rod, and a positioning convex strip is provided on the pull plate, and the positioning convex strip can be inserted and fixed in the positioning slot of the bottom wall of the box body;

[0037] The box unloading steps of the box unloading device are as follows: when needed, the full box taking out mechanism takes out the fully loaded turnover box from the first full box cache mechanism or the second full box cache mechanism and places it on the full box lifting mechanism to lift it upward into place, and then the full box or empty box grasping mechanism places the fully loaded turnover box to the box unloading port. At this time, the positioning convex strip on the pulling plate of the movable bottom plate pulling and pulling mechanism of the turnover box is inserted into the positioning slot fixed on the bottom wall of the box body, and the movable bottom plate pulling and pulling mechanism of the turnover box pulls out the bottom wall of the box body, and the rod-shaped objects fall down. After the rod-shaped objects in the box have fallen down, the box bottom plate is pushed into the box, and the full box or empty box shifting mechanism places the turnover box on the first empty box cache mechanism to complete the box unloading.

[0038] A caching method for a rod-shaped object caching device using a turnover box to realize a first-in-first-out caching method comprises the following steps:

[0039] 1) The frontmost empty turnover box on the third empty box buffer mechanism is placed in the box loading device for box loading. After the box loading is completed, the turnover box filled with rod-shaped objects is moved downward to the frontmost part of the third full box buffer mechanism by the full box descending mechanism of the box loading device. At the same time, the belt conveyor of the third empty box buffer mechanism drives the empty turnover boxes on this layer to move forward, and the belt conveyor of the third full box buffer mechanism drives the full turnover boxes on this layer to move backward;

[0040] 2) When the fully loaded turnover box moves to the rear along with the belt conveyor of the third full box buffer mechanism, the full box and empty box shifting machine moves the fully loaded turnover box horizontally to the first full box buffer mechanism and / or the second full box buffer mechanism; at the same time, the belt conveyors of the first full box buffer mechanism and the second full box buffer mechanism respectively drive the fully loaded turnover boxes on the layer to move forward;

[0041] 3) When the fully loaded turnover box on the first full box buffer mechanism or the second full box buffer mechanism moves to the front, the fully loaded turnover box can be placed on the full box lifting mechanism of the box unloading device according to the transfer sequence and lifted to the process position by the full box taking device of the box unloading device when necessary, and the fully loaded turnover box can be placed in the unloading position by the turnover box shifting mechanism, and the bottom plate can be opened and unloaded by the turnover box movable bottom plate pulling mechanism, and the turnover box movable bottom plate can be closed after unloading, and the empty box can be placed on the first empty box buffer mechanism by the turnover box shifting mechanism, and at the same time, the belt conveyor on the first empty box buffer mechanism moves the empty turnover box backward;

[0042] 4) When the empty turnover box on the first empty box buffer mechanism moves to the rear, or the empty turnover box on the first empty box buffer mechanism is full, the full box and empty box shifting machine moves the turnover box to the third empty box buffer mechanism and / or the second empty box buffer mechanism;

[0043] 5) Repeat steps 1) to 4) to achieve cyclic operation.

[0044] Furthermore, the stick-shaped object is a cigarette.

[0045] The beneficial effects of the present invention are:

[0046] 1) The present invention can adjust the cache strategy of the rod-shaped objects according to the production status of the cigarette making machine and the packaging machine. When the production speed of the packaging machine is higher than that of the cigarette making machine, the cache device unloads and replenishes the materials. When the production speed of the packaging machine is lower than that of the cigarette making machine, the cache device caches the materials. The cache device realizes the first-in-first-out of the rod-shaped objects by switching the three full-box cache mechanisms, and has high flexibility. Since the turnover box is used to carry the materials, the transmission of cigarettes is reduced.

[0047] 2) The present invention can be used for caching cigarettes or other stick-shaped objects, ensuring the normal and continuous operation of other equipment and improving production efficiency. Its working method is reasonably designed, simple in principle, and conforms to the caching process. The cached cigarettes or other stick-shaped objects comply with the first-in-first-out requirement, avoiding long-term caching of cigarettes or other stick-shaped objects and damaging their quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a schematic diagram of the structure of placing the turnover box of the present invention;

[0049] Figure 2 It is a partial cross-sectional view of the present invention;

[0050] Figure 3 This is a schematic diagram of the structure of the full-box and empty-box shifting machine of the present invention;

[0051] Figure 4 It is a structural schematic diagram of a full box lowering mechanism / full box lifting mechanism of the present invention;

[0052] Figure 5 This is a schematic diagram of the structure of the empty box removal mechanism / full box removal mechanism of the present invention (1);

[0053] Figure 6 This is a schematic diagram of the structure of the empty box removal mechanism / full box removal mechanism of the present invention (2);

[0054] Figure 7 For the present invention Figure 6 A partial enlarged view of the

[0055] Figure 8 It is a structural schematic diagram of the variable silo mechanism of the present invention;

[0056] Fig. 9 It is a schematic diagram of the assembly of the variable bin mechanism, the push plate mechanism and the valve mechanism of the present invention;

[0057] Fig.10 Schematic diagram of the box packing step of the present invention (1);

[0058] Fig.11 Schematic diagram (2) of the box packing step of the present invention;

[0059] Fig.12 Schematic diagram (3) of the box packing step of the present invention;

[0060] Fig.13 Schematic diagram (4) of the box packing step of the present invention;

[0061] Fig.14 It is a structural schematic diagram of the full box and empty box grabbing mechanism of the present invention;

[0062] Fig.15 It is a structural schematic diagram of the movable bottom plate drawing mechanism of the turnover box of the present invention;

[0063] Fig.16 This is a schematic diagram of the process of Embodiment 2 of the present invention;

[0064] Fig.17 This is a flow chart of the third embodiment of the present invention.

[0065] Cigarette making machine 1, packaging machine 2, full and empty box shifting machine 3, box loading device 6, box unloading device 7, feeding device 8, discharging device 9, turnover box 10;

[0066] Lifter 301, first horizontal slide rail 302, first telescopic guide rail 303, shift plate 304;

[0067] A first empty box buffer mechanism 401, a second empty box buffer mechanism 402, a third empty box buffer mechanism 403, an empty turnover box 404, a bracket 405, and a belt conveyor 406;

[0068] A first full box buffer mechanism 501, a second full box buffer mechanism 502, a third full box buffer mechanism 503, and a fully loaded turnover box 504;

[0069] Empty box taking out mechanism 61, full box descending mechanism 62, variable material bin mechanism 63, push plate mechanism 64, valve mechanism 65;

[0070] A first push rod 6101, a second push rod 6102, a third push rod 6103, a fourth push rod 6104, a pushing end 6105, a pressure rod 6106, a fifth push rod 6107, and a cylinder 6108;

[0071] Support frame 6201, driving wheel 6202, driven wheel 6203, chain 6204, lifting plate 6205;

[0072] Silo shell 6301, side baffle 6302, rodless cylinder 6303, moving plate 6304;

[0073] A first electric push rod 6401 and a push plate box 6402;

[0074] A second electric push rod 6501 and a valve 6502;

[0075] Full box taking out mechanism 71, full box lifting mechanism 72, full box and empty box grabbing mechanism 73, turnover box moving bottom plate pulling mechanism 74;

[0076] A second horizontal slide rail 7301, a second telescopic guide rail 7302, and a clamping cylinder 7303;

[0077] Supporting bottom plate 7401, pulling plate 7402, third electric push rod 7403, positioning convex strip 7404;

[0078] Feed channel 801, feed belt conveyor 802;

[0079] Discharging channel 901, discharging belt conveyor 902;

[0080] Box body 1001 and bottom wall 1002 of the box body. DETAILED DESCRIPTION

[0081] In order to make the technical solution of the present invention clearer and more specific, the present invention is further described below in conjunction with embodiments. Any equivalent replacement of the technical features of the technical solution of the present invention and any solution derived by conventional reasoning shall fall within the protection scope of the present invention.

[0082] Embodiment 1

[0083] A rod-shaped object buffering device using a turnover box to achieve first-in-first-out in this embodiment is arranged between a cigarette making machine 1 and a packing machine 2, wherein the buffering device comprises:

[0084] A feeding device 8, a box loading device 6, a full box buffer mechanism, an empty box buffer mechanism, a full box and empty box shifting machine, a box unloading device 7, a discharging device 9 and a turnover box 10;

[0085] The feeding device is used to convey the cigarettes to the entrance of the box packing device;

[0086] The box loading device takes out the empty turnover box from the empty box buffer mechanism and loads cigarettes into it, and puts the full turnover box 504 onto the belt conveyor of the full box buffer mechanism;

[0087] The full box buffer mechanism is used to buffer and convey the fully loaded turnover boxes filled with cigarettes. The number of full box buffer mechanisms is three groups;

[0088] The empty box buffer mechanism is used to buffer and transport the empty turnover boxes 404 without cigarettes, and the number of the empty box buffer mechanism is three groups;

[0089] The full-box and empty-box shifting machine 3 is used to shift the fully loaded turnover boxes and the empty turnover boxes after unloading, and to transfer the cigarettes in the fully loaded turnover boxes to the packaging machine in a first-in-first-out order, and to transfer the empty turnover boxes to the empty box buffer mechanism when necessary;

[0090] The box unloading device is used to unload the fully loaded turnover boxes stored on the full box buffer mechanism according to the first-in-first-out principle to the discharging device when needed, and put the unloaded empty turnover boxes on the empty box buffer mechanism;

[0091] The discharging device is used to convey the cigarettes discharged by the box unloading device to the packaging machine channel.

[0092] In this embodiment, the turnover box includes a box body 1001 of a rectangular structure, one side wall of the box body is an open structure, the bottom wall 1002 of the box body is installed on the box body in a pull-out manner, and a positioning slot is provided on the bottom wall of the box body.

[0093] In this embodiment, the feeding device includes a feeding channel 801, in which a feeding belt conveyor 802 is provided. The discharging device includes a discharging channel 901, in which a discharging belt conveyor 902 is provided.

[0094] In this embodiment, the empty box buffer mechanism and the full box buffer mechanism are arranged in two columns in the horizontal direction; in one column, the first empty box buffer mechanism 401 is located at the top, and the first full box buffer mechanism 501 and the second full box buffer mechanism 502 are arranged below the first empty box buffer mechanism in sequence; in the other column, the third full box buffer mechanism 503 is arranged at the bottom, and the third empty box buffer mechanism 403 and the second empty box buffer mechanism 402 are arranged above the third full box buffer mechanism in sequence;

[0095] The full and empty box shifting machine is arranged behind the two rows of empty box buffer mechanisms and the full box buffer mechanism;

[0096] The front of the two rows of empty box cache mechanisms and the full box cache mechanisms is used to place a box loading device 6 and a box unloading device 7. The first full box cache mechanism and the second full box cache mechanism are arranged corresponding to the box unloading device, and the second empty box cache mechanism and the third empty box cache mechanism are arranged corresponding to the box loading device; the box loading device is connected to the connecting conveying channel of the cigarette making machine and the packaging machine through a feeding device, and the box unloading device is connected to the connecting conveying channel of the cigarette making machine and the packaging machine through a discharging device.

[0097] In this embodiment, both the empty box buffer mechanism and the full box buffer mechanism include a bracket 405 in which a belt conveyor 406 is provided.

[0098] In this embodiment, the box loading device includes an empty box taking out mechanism 61, a full box lowering mechanism 62, a variable bin mechanism 63, a push plate mechanism 64 and a valve mechanism 65;

[0099] The empty box taking-out mechanism is correspondingly arranged in front of the third empty box buffer mechanism, and the empty box taking-out mechanism includes two sets of transmission components arranged in mirror image, each set of transmission components includes a first push rod 6101, a second push rod 6102, a third push rod 6103 and a fourth push rod 6104, the first push rod is horizontally arranged above the third push rod, the two ends of the second push rod are respectively hinged at the rear ends of the first push rod and the third push rod, the two ends of the fourth push rod are respectively hinged at the front ends of the first push rod and the third push rod, and the bottom of the fourth push rod extends downward to form a pushing end 6105;

[0100] The hinged joints of the second push rod and the third push rod of each transmission assembly can be rotatably sleeved on the transmission shaft of the belt conveyor of the third empty box buffer mechanism, a plurality of pressure rods 6106 are horizontally connected between the first push rods of the two transmission assemblies, a fifth push rod 6107 is horizontally connected between the pushing ends of the fourth push rods of the two transmission assemblies, and the end of the driving rod of the cylinder 6108 fixed on the bracket is rotatably fixed on the fifth push rod;

[0101] In the initial state, the cylinder drives the pressure rod to move to the inner part of the belt conveyor; when the empty turnover box needs to be taken out, the driving rod of the cylinder contracts inward to drive the fourth push rod to rotate, so that the empty turnover box pressed on the pressure rod drives the empty turnover box to move upward and forward out of the third empty box buffer mechanism;

[0102] The full box descending mechanism includes a first transplanting mechanism, which is arranged corresponding to the third empty box buffering mechanism. The first transplanting mechanism includes two vertically arranged support frames 6201, each of which is respectively provided with a driving wheel 6202, a driven wheel 6203 and a chain 6204, the driving wheel and the driven wheel are arranged up and down, and are rotatably connected to the support frames, the chain is wound around the driving wheel and the driven wheel, and a lifting plate is fixedly connected thereto, and the lifting plates 6205 on the two support frames are arranged correspondingly, and the movement of the lifting plates drives the turnover box to move up and down;

[0103] The variable silo mechanism includes a silo shell 6301, the top of which is connected to the feed channel, a side baffle 6302, a rodless cylinder 6303 and a movable plate 6304 are arranged in the silo shell, two vertically arranged side baffles are relatively fixed in the silo shell, a slide groove is vertically arranged on the side baffles, a rodless cylinder is fixed on the outer side of each side baffle, the movable plate is horizontally arranged between the two side baffles, the slider of the rodless cylinder passes through the slide groove and is fixedly connected to the movable plate, and the rodless cylinder controls the movable plate to move up and down in the silo shell;

[0104] The push plate mechanism includes a first electric push rod 6401 fixed in the silo housing, the first electric push rod is fixedly connected to the push plate box 6402, the bottom of the push plate box is arranged above the moving plate, the first electric push rod is arranged in front of the moving plate, and the first electric push rod pushes the push plate box to move forward and backward;

[0105] The valve mechanism includes a second electric push rod 6501 fixed in the silo housing, the second electric push rod is arranged above the push plate mechanism, the second electric push rod is fixedly connected to the valve 6502, and the valve can be moved forward and backward and fixed on the top of the push plate box;

[0106] The push plate box and the valve can be pushed between the two side baffles;

[0107] The box loading steps of the box loading device are as follows: when box loading is needed, the empty turnover box located on the third empty box cache mechanism is taken out by the empty box taking-out mechanism and placed on the full box descending mechanism, and the movable plate of the variable material bin mechanism gradually drops from the highest position to the lowest position, and then the push plate mechanism and the valve mechanism push the rod-shaped object of the variable material bin into the empty box. After the rod-shaped object is pushed into the empty box, the push plate mechanism withdraws, and the movable plate of the variable material bin mechanism quickly moves up from the lowest position to the highest position and then the valve mechanism withdraws, and the fully loaded turnover box descends with the full box descending mechanism to the third full tray cache mechanism for box loading.

[0108] In this embodiment, the full box and empty box shifting machine includes a lifter 301, a first horizontal slide rail 302 and a first telescopic guide rail 303. The first horizontal slide rail is connected to the lifter and is vertically lifted and lowered by the lifter. The first telescopic guide rail is installed on the first horizontal slide rail and its horizontal movement is controlled by the first horizontal slide rail. A shift plate 304 is connected to the end of the first telescopic guide rail, and the shift plate is used to support turnover boxes in an empty state or turnover boxes in a fully loaded state.

[0109] In this embodiment, the box unloading device includes a full box taking-out mechanism 71, a full box lifting mechanism 72, a full box and empty box grabbing mechanism 73 and a turnover box moving bottom plate pulling mechanism 74;

[0110] The full box taking-out mechanism is fixed in front of the belt conveyor of the first full box buffer mechanism and the second full box buffer mechanism, and the structure of the full box taking-out mechanism is the same as that of the empty box taking-out mechanism;

[0111] The full box lifting mechanism includes a second transplanting mechanism, the second transplanting mechanism is arranged corresponding to the first full box buffering mechanism, the structure of the second transplanting mechanism is the same as that of the first transplanting mechanism, and the second transplanting mechanism and the first transplanting mechanism share a supporting frame;

[0112] The full box and empty box grabbing mechanism includes a second horizontal slide rail 7301, a second telescopic guide rail 7302 and a clamping cylinder 7303. The second horizontal slide rail is fixed in front of the first empty box buffer mechanism. The second telescopic guide rail is installed on the lower side of the second horizontal slide rail and moves horizontally through the second horizontal slide rail. The clamping cylinder is installed at the end of the second telescopic guide rail and is controlled by the second telescopic guide rail to move vertically.

[0113] The turnover box movable bottom plate pulling mechanism includes a supporting bottom plate 7401, which is horizontally fixed behind the box unloading port of the discharge channel, and a pull plate 7402 is movably provided on the supporting bottom plate, and the pull plate is driven to move by a third electric push rod 7403, and a positioning convex strip 7404 is provided on the pull plate, and the positioning convex strip can be inserted and fixed in the positioning slot of the bottom wall of the box body;

[0114] The box unloading steps of the box unloading device are as follows: when needed, the full box taking out mechanism takes out the fully loaded turnover box from the first full box cache mechanism or the second full box cache mechanism and places it on the full box lifting mechanism to lift it upward into place, and then the full box or empty box grasping mechanism places the fully loaded turnover box to the box unloading port. At this time, the positioning convex strip on the pulling plate of the movable bottom plate pulling and pulling mechanism of the turnover box is inserted into the positioning slot fixed on the bottom wall of the box body, and the movable bottom plate pulling and pulling mechanism of the turnover box pulls out the bottom wall of the box body, and the rod-shaped objects fall down. After the rod-shaped objects in the box have fallen down, the box bottom plate is pushed into the box, and the full box or empty box shifting mechanism places the turnover box on the first empty box cache mechanism to complete the box unloading.

[0115] Embodiment 2

[0116] When the processing capacity of the packaging machine is less than the buffer capacity of the buffer device, the buffering method of the stick-shaped object buffer device comprises the following steps:

[0117] 1) Place the front empty turnover box on the third empty box buffer mechanism into the box loading device for box loading. After box loading, the turnover box filled with rod-shaped objects is moved downward to the front of the third full box buffer mechanism by the full box descending mechanism of the box loading device. At the same time, the belt conveyor of the third empty box buffer mechanism drives the empty turnover boxes on this layer to move forward, and the belt conveyor of the third full box buffer mechanism drives the full turnover boxes on this layer to move backward;

[0118] 2) When the fully loaded turnover box moves to the rear with the belt conveyor of the third full box buffer mechanism, the full box and empty box shifter first moves the fully loaded turnover box horizontally to the second full box buffer mechanism. At the same time, the belt conveyor of the second full box buffer mechanism drives the fully loaded turnover box on this layer to move forward until the second full box buffer mechanism is full, and then the fully loaded turnover box is transferred to the first full box buffer mechanism;

[0119] 3) The fully loaded turnover boxes on the second full box buffer mechanism stored according to the first-in-first-out principle are unloaded to the unloading device through the box unloading device, and the unloaded empty turnover boxes are placed on the first empty box buffer mechanism. At the same time, the belt conveyor on the first empty box buffer mechanism moves the empty turnover boxes backward; when all the fully loaded turnover boxes on the second full box buffer mechanism are unloaded, the first full box buffer mechanism is unloaded;

[0120] 4) When the empty turnover boxes on the first empty box buffer mechanism move to the rear, or when the empty turnover boxes on the first empty box buffer mechanism are full, the turnover boxes are moved to the third empty box buffer mechanism by the full box and empty box shifting machine. When the third empty box buffer mechanism is full, the turnover boxes are transferred to the second empty box buffer mechanism. The turnover boxes on the second empty box buffer mechanism can be transferred downward to the third empty box buffer mechanism by the full box and empty box shifting machine.

[0121] 5) Repeat steps 1) to 4) to achieve cyclic operation.

[0122] Embodiment 3

[0123] When the processing capacity of the packaging machine is greater than the buffer capacity of the buffer device, the buffering method of the stick-shaped object buffer device includes the following steps:

[0124] 1) Place the front empty turnover box on the third empty box buffer mechanism into the box loading device for box loading. After box loading, the turnover box filled with rod-shaped objects is moved downward to the front of the third full box buffer mechanism by the full box descending mechanism of the box loading device. At the same time, the belt conveyor of the third empty box buffer mechanism drives the empty turnover boxes on this layer to move forward, and the belt conveyor of the third full box buffer mechanism drives the full turnover boxes on this layer to move backward;

[0125] 2) When the fully loaded turnover box moves to the rear with the belt conveyor of the third full box buffer mechanism, the full box and empty box shifter first moves the fully loaded turnover box horizontally to the second full box buffer mechanism. At the same time, the belt conveyor of the second full box buffer mechanism drives the fully loaded turnover box on this layer to move forward;

[0126] 3) The fully loaded turnover boxes on the second full box buffer mechanism stored according to the first-in-first-out principle are unloaded to the unloading device through the box unloading device, and the unloaded empty turnover boxes are placed on the first empty box buffer mechanism. At the same time, the belt conveyor on the first empty box buffer mechanism moves the empty turnover boxes backwards;

[0127] 4) When the empty turnover box on the first empty box buffer mechanism moves to the rear, or when the empty turnover box on the first empty box buffer mechanism is full, the turnover box is moved to the third empty box buffer mechanism by the full box and empty box shifting machine;

[0128] 5) Repeat steps 1) to 4) to achieve cyclic operation.

[0129] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A first-in-first-out stick-shaped object buffer device using a turnover box, the buffer device is arranged between a cigarette making machine and a packing machine, and is characterized by: The cache device includes: Feeding device, box loading device, full box buffer mechanism, empty box buffer mechanism, full box and empty box shifting machine, box unloading device, discharging device and turnover box; The feeding device is used to convey the rod-shaped objects to the inlet of the box-packing device; The box loading device takes out an empty turnover box from the empty box buffer mechanism and loads the rod-shaped objects into it, and puts the turnover box filled with the rod-shaped objects onto the belt conveyor of the full box buffer mechanism; The full box buffer mechanism is used to buffer and convey the fully loaded turnover boxes filled with rod-shaped objects, and the number of the full box buffer mechanism is at least three groups; The empty box buffer mechanism is used to buffer and transport empty turnover boxes without rod-shaped objects, and the number of the empty box buffer mechanism is at least three groups; The full box and empty box transfer machine is used to transfer the fully loaded turnover boxes and the empty turnover boxes after unloading, and transfer the rod-shaped objects in the fully loaded turnover boxes to the packaging machine in the order of first-in-first-out, and transfer the empty turnover boxes to the empty box buffer mechanism when necessary; The box unloading device is used to unload the fully loaded turnover boxes stored on the full box buffer mechanism according to the first-in-first-out principle to the discharging device when needed, and put the unloaded empty turnover boxes on the empty box buffer mechanism; The discharging device is used to convey the stick-shaped objects discharged by the box discharging device to the packaging machine channel; The turnover box comprises a box body of a rectangular parallelepiped structure, one side wall of the box body is an open structure, the bottom wall of the box body is installed on the box body in a pull-out manner, and a positioning slot is provided on the bottom wall of the box body; The empty box buffer mechanism and the full box buffer mechanism are arranged in two columns in the horizontal direction; in one column, the first empty box buffer mechanism is located at the top, and the first full box buffer mechanism and the second full box buffer mechanism are arranged below the first empty box buffer mechanism in sequence; in the other column, the third full box buffer mechanism is arranged at the bottom, the third empty box buffer mechanism is arranged above the third full box buffer mechanism, and the second empty box buffer mechanism is arranged above the third empty box buffer mechanism; The full and empty box shifting machine is arranged behind the two rows of empty box buffer mechanisms and the full box buffer mechanism; The front of the two rows of empty box cache mechanisms and full box cache mechanisms is used to place a box loading device and a box unloading device. The first full box cache mechanism and the second full box cache mechanism are arranged corresponding to the box unloading device, and the second empty box cache mechanism and the third empty box cache mechanism are arranged corresponding to the box loading device; the box loading device is connected to the connecting conveying channel of the cigarette making machine and the packaging machine through a feeding device, and the box unloading device is connected to the connecting conveying channel of the cigarette making machine and the packaging machine through a discharging device.

2. A bar-shaped object caching device using a turnover box to achieve first-in-first-out as claimed in claim 1, characterized in that: The stick-shaped object is a cigarette.

3. A bar-shaped object buffering device using a turnover box to achieve first-in-first-out as claimed in claim 2, characterized in that: The empty box buffer mechanism and the full box buffer mechanism both comprise a bracket, in which a belt conveyor is arranged.

4. A bar-shaped object caching device using a turnover box to achieve first-in-first-out as claimed in claim 3, characterized in that: The box loading device includes an empty box taking out mechanism, a full box lowering mechanism, a variable material bin mechanism, a push plate mechanism and a valve mechanism; The empty box taking-out mechanism is correspondingly arranged in front of the third empty box buffer mechanism, and the empty box taking-out mechanism includes two sets of transmission components arranged in mirror image, and each set of transmission components includes a first push rod, a second push rod, a third push rod and a fourth push rod, the first push rod is horizontally arranged above the third push rod, the two ends of the second push rod are respectively hinged at the rear ends of the first push rod and the third push rod, the two ends of the fourth push rod are respectively hinged at the front ends of the first push rod and the third push rod, and the bottom of the fourth push rod extends downward to form a pushing end; The hinged joints of the second push rod and the third push rod of each transmission assembly can be rotatably sleeved on the transmission shaft of the belt conveyor of the third empty box buffer mechanism, a plurality of pressure-bearing rods are horizontally connected between the first push rods of the two transmission assemblies, a fifth push rod is horizontally connected between the pushing ends of the fourth push rods of the two transmission assemblies, and the end of the driving rod of the cylinder fixed on the bracket can be rotatably fixed on the fifth push rod; In the initial state, the cylinder drives the pressure rod to move to the inner part of the belt conveyor; when the empty turnover box needs to be taken out, the driving rod of the cylinder contracts inward to drive the fourth push rod to rotate, so that the empty turnover box pressed on the pressure rod drives the empty turnover box to move upward and forward out of the third empty box buffer mechanism; The full box descending mechanism includes a first transfer mechanism, which is arranged corresponding to the third empty box buffer mechanism. The first transfer mechanism includes two vertically arranged support frames, each of which is respectively provided with a driving wheel, a driven wheel and a chain, the driving wheel and the driven wheel are arranged up and down, and are rotatably connected to the support frame, the chain is wound around the driving wheel and the driven wheel, and a lifting plate is fixedly connected thereto, the lifting plates on the two support frames are arranged correspondingly, and the movement of the lifting plates drives the turnover box to move up and down; The variable silo mechanism includes a silo shell, the top of which is connected to the feed channel, a side baffle, a rodless cylinder and a movable plate are arranged in the silo shell, two vertically arranged side baffles are relatively fixed in the silo shell, a slide groove is vertically arranged on the side baffle, a rodless cylinder is fixed on the outer side of each side baffle, the movable plate is horizontally arranged between the two side baffles, the slider of the rodless cylinder passes through the slide groove and is fixedly connected to the movable plate, and the rodless cylinder controls the movable plate to move up and down in the silo shell; The push plate mechanism includes a first electric push rod fixed in the silo housing, the first electric push rod is fixedly connected to the push plate box, the bottom of the push plate box is arranged above the moving plate, the first electric push rod is arranged in front of the moving plate, and the first electric push rod pushes the push plate box to move forward and backward; The valve mechanism includes a second electric push rod fixed in the silo housing, the second electric push rod is arranged above the push plate mechanism, the second electric push rod is fixedly connected to the valve, and the valve is fixed on the top of the push plate box body so as to be movable forward and backward; The push plate box and the valve can be pushed between the two side baffles; The box loading steps of the box loading device are as follows: when box loading is needed, the empty turnover box located on the third empty box cache mechanism is taken out by the empty box taking-out mechanism and placed on the full box descending mechanism, and the movable plate of the variable material bin mechanism gradually drops from the highest position to the lowest position, and then the push plate mechanism and the valve mechanism push the rod-like object in the variable material bin mechanism into the empty box. After the rod-like object is pushed into the empty box, the push plate mechanism withdraws, and the movable plate of the variable material bin mechanism quickly moves up from the lowest position to the highest position, and then the valve mechanism withdraws, and the fully loaded turnover box descends with the full box descending mechanism to the third full tray cache mechanism for box loading.

5. A bar-shaped object caching device using a turnover box to achieve first-in-first-out as claimed in claim 4, characterized in that: The full and empty box shifting machine includes a lifter, a first horizontal slide rail and a first telescopic guide rail. The first horizontal slide rail is connected to the lifter and is vertically lifted and lowered by the lifter. The first telescopic guide rail is installed on the first horizontal slide rail and its horizontal movement is controlled by the first horizontal slide rail. A shift plate is connected to the end of the first telescopic guide rail. A pneumatic clamp is provided on the shift plate. The pneumatic clamp is used to clamp the turnover box.

6. A bar-shaped object buffering device using a turnover box to realize first-in-first-out as claimed in claim 5, characterized in that: The box unloading device includes a full box taking-out mechanism, a full box lifting mechanism, a full box and empty box grabbing mechanism and a turnover box moving bottom plate pulling mechanism; The full box taking-out mechanism is fixed in front of the belt conveyor of the first full box buffer mechanism and the second full box buffer mechanism, and the structure of the full box taking-out mechanism is the same as that of the empty box taking-out mechanism; The full box lifting mechanism includes a second transplanting mechanism, the second transplanting mechanism is arranged corresponding to the first full box buffering mechanism, the structure of the second transplanting mechanism is the same as that of the first transplanting mechanism, and the second transplanting mechanism and the first transplanting mechanism share a supporting frame; The full box and empty box grabbing mechanism comprises a second horizontal slide rail, a second telescopic guide rail and a clamping cylinder. The second horizontal slide rail is fixed in front of the first empty box buffer mechanism. The second telescopic guide rail is installed on the lower side of the second horizontal slide rail and moves horizontally through the second horizontal slide rail. The clamping cylinder is installed at the end of the second telescopic guide rail and is controlled to rise and fall vertically by the second telescopic guide rail. The turnover box movable bottom plate pulling mechanism comprises a supporting bottom plate, which is horizontally fixed behind the box unloading port of the discharging channel, and a pull plate is movably provided on the supporting bottom plate, and the pull plate is driven to move by a third electric push rod, and a positioning convex strip is provided on the pull plate, and the positioning convex strip can be inserted and fixed in the positioning slot of the bottom wall of the box body; The box unloading steps of the box unloading device are as follows: when needed, the full box taking out mechanism takes out the fully loaded turnover box from the first full box cache mechanism or the second full box cache mechanism and places it on the full box lifting mechanism to lift it upward into place, and then the full box or empty box grasping mechanism places the fully loaded turnover box to the box unloading port. At this time, the positioning convex strip on the pulling plate of the movable bottom plate pulling and pulling mechanism of the turnover box is inserted into the positioning slot fixed on the bottom wall of the box body, and the movable bottom plate pulling and pulling mechanism of the turnover box pulls out the bottom wall of the box body, and the rod-shaped objects fall down. After the rod-shaped objects in the box have fallen down, the box bottom plate is pushed into the box, and the full box or empty box shifting mechanism places the turnover box on the first empty box cache mechanism to complete the box unloading.

7. A caching method using the stick-shaped object caching device using a turnover box to achieve first-in-first-out as claimed in claim 6, characterized in that: The following steps are involved: 1) The empty turnover box at the front of the third empty box buffer mechanism is placed in the box loading device for box loading. After the box loading is completed, the turnover box filled with rod-shaped objects is moved downward to the front of the third full box buffer mechanism. At the same time, the belt conveyor of the third empty box buffer mechanism drives the empty turnover boxes on this layer to move forward, and the belt conveyor of the third full box buffer mechanism drives the full turnover boxes on this layer to move backward; 2) When the fully loaded turnover box moves to the rear along with the belt conveyor of the third full box buffer mechanism, the full box and empty box shifting machine moves the fully loaded turnover box horizontally to the first full box buffer mechanism and / or the second full box buffer mechanism; at the same time, the belt conveyors of the first full box buffer mechanism and the second full box buffer mechanism respectively drive the fully loaded turnover boxes on the layer to move forward; 3) When the fully loaded turnover boxes on the first full box buffer mechanism or the second full box buffer mechanism move to the front, the fully loaded turnover boxes stored on the first full box buffer mechanism or the second full box buffer mechanism according to the first-in-first-out principle are unloaded to the discharging device through the box unloading device, and the unloaded empty turnover boxes are placed on the first empty box buffer mechanism. At the same time, the belt conveyor on the first empty box buffer mechanism moves the empty turnover boxes backward; 4) When the empty turnover box on the first empty box buffer mechanism moves to the rear, or the empty turnover box on the first empty box buffer mechanism is full, the full box and empty box shifting machine moves the turnover box to the third empty box buffer mechanism and / or the second empty box buffer mechanism; 5) Repeat steps 1) to 4) to achieve cyclic operation.

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