Intelligent conveying device for beverage production

Abstract

The utility model discloses an intelligent conveying device for beverage production, which comprises a chain-plank conveyor and a portal frame, a plurality of groups of mounting plates are mounted on the surface of an output belt of the chain-plank conveyor, an electric cabinet is mounted on one side of the chain-plank conveyor, a controller and a timer are mounted in the electric cabinet, and the portal frame is connected with the chain-plank conveyor. A gas storage tank is arranged between the chain plate type conveyor and the portal frame, two groups of first electromagnets and two groups of second electromagnets are mounted on the upper portion of the chain plate type conveyor, two groups of fixing blocks are mounted on the upper portions of multiple groups of mounting plates, and transverse plates slidably penetrate through the opposite faces of the two groups of fixing blocks on the same side; and clamping plates are mounted at the opposite ends of the two groups of transverse plates on the same side. The intelligent conveying device for beverage production has the beneficial effects that the intelligent conveying device for beverage production is provided with the mounting plate, beverage bottles can be conveniently clamped and unloaded through the mounting plate, the input cost and operation steps of the intelligent conveying device for beverage production are reduced, and intelligent conveying of the beverage bottles of the intelligent conveying device for beverage production is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of beverage production, specifically, relate to a kind of intelligent conveying device for beverage production. BACKGROUND

[0002] Beverage is the liquid for human or livestock drinking, it is the product that is quantitatively packaged, directly drinkable or according to certain proportion is used water to adjust or is brewed, and the ethanol content (mass fraction) is not more than 0.5%, beverage is on filling production line, needs to use conveying device, completes the conveying treatment of beverage bottle, actual use has simple operation, stable structure and good use effect and so on Advantage.

[0003] Prior art discloses application number: CN202011279528.9 a kind of intelligent conveying device for food and beverage production, the invention, need to use drive frame, hydraulic rod, push block, moving block and clamping assembly and multiple structures, realize the clamping use of beverage bottle, and beverage bottle is relaxed, need to use hydraulic rod to push push block, this operation step is complicated, and the design of multiple structures will increase input cost, it is difficult to conveniently realize intelligent conveying, simultaneously, beverage bottle has no airtightness detection structure in the conveying process, when beverage bottle exists leakage, it will influence the filling use of beverage. UTILITY MODEL CONTENT

[0004] (1) the technical problem solved

[0005] In view of the deficiencies of prior art, the utility model provides an intelligent conveying device for beverage production, has the advantages that beverage bottle can be conveniently clamped and unloaded, has airtightness detection structure, and whether beverage bottle has leakage can be detected, thereby solving the problems in the above background art.

[0006] (2) technical scheme

[0007] In order to realize the above-mentioned advantages of facilitating clamping and unloading of beverage bottles, having airtightness detection structure, and being capable of detecting whether the beverage bottle has a leakage, the specific technical scheme adopted by the utility model is as follows: A kind of intelligent conveying device for beverage production, including chain plate conveyor and portal frame, the surface of the output belt of chain plate conveyor is provided with multiple groups of mounting plate, the side of chain plate conveyor is provided with electric control box, and the inside of electric control box is provided with controller and timer, gas storage tank is arranged between chain plate conveyor and portal frame, the upper portion of chain plate conveyor is provided with two groups of first electromagnet and two groups of second electromagnet, the upper portion of multiple groups of mounting plate is provided with two groups of fixed block, the opposite faces of two groups of fixed block of same side are slidably penetrated by horizontal plate, the opposite ends of two groups of horizontal plate of same side are provided with clamping plate, the remote ends of two groups of horizontal plate of same side are provided with limiting block, the upper portion of two groups of horizontal plate of same side is provided with limiting slot, the inside of two groups of limiting slot of same side is penetrated by connecting screw rod, the sidewall of two groups of connecting screw rod of same side is sleeved with two groups of connecting nut, the sidewall of two groups of horizontal plate of same side is sleeved with telescopic spring.

[0008] Further, the connecting screw rod and the connecting nut are threadedly engaged.

[0009] Further, the upper portion of the portal frame is penetrated by an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected to the upper portion of the gas storage tank, the upper portion of the gas storage tank is penetrated by a connecting pipe and a gas discharge pipe, a nitrogen tank is installed on the inner top surface of the portal frame, an exhaust pump is installed on the outer wall of the nitrogen tank, an air exhaust pipe is connected to the input end of the exhaust pump, one end of the air exhaust pipe is inserted into the gas storage tank, one end of the connecting pipe is connected to the output end of the exhaust pump, first electromagnetic valves are installed on the sidewalls of the connecting pipe and the air exhaust pipe, a second electromagnetic valve is installed on the sidewall of the gas discharge pipe, first and second gas pressure sensors are installed on the inner top surface of the gas storage tank, a sealing plug is fixedly penetrated through the inner bottom surface of the gas storage tank, an air discharge pipe is fixedly penetrated through the upper portion of the sealing plug, a pressure sensor is installed on the lower portion of the gas storage tank, two positioning plates are installed on the end surface of the portal frame, infrared emitters and infrared receivers are installed on the opposite faces of the two positioning plates, respectively, and the infrared emitters, the infrared receivers, the electric telescopic rod, the two first electromagnetic valves, the pressure sensor, the first and second gas pressure sensors, the second electromagnetic valve, and the timer are electrically connected to the controller.

[0010] Further, the limiting blocks are made of iron material.

[0011] Further, the infrared emitters and the infrared receivers are located on the same horizontal line.

[0012] Further, the controller is electrically connected with the chain plate conveyor, the two groups of first electromagnets and the two groups of second electromagnets through wires.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the beverage production intelligent conveying device has the following beneficial effects:

[0015] (1) The beverage production intelligent conveying device is provided with mounting plates, and when the beverage production intelligent conveying device is actually used, the controller is connected to the power supply and an external alarm, the controller can make the chain plate conveyor, the two groups of first electromagnets and the two groups of second electromagnets work, the conveying belt of the chain plate conveyor can drive a plurality of mounting plates to move, when a group of mounting plates moves to the two groups of first electromagnets, the two groups of first electromagnets can adsorb the two groups of limiting blocks on the same side to make the two groups of clamps on the same side separate from each other, in this process, the two groups of clamps on the same side that are far away from each other can extrude the two groups of extension springs on the same side, when the gap length between the two groups of clamps on the same side reaches a suitable value, the beverage bottle can be placed between the two groups of clamps on the same side, when the group of mounting plates is separated from the gap between the two groups of first electromagnets, the two groups of extension springs on the same side can push the two groups of clamps on the same side to move towards each other to clamp the beverage bottle, in this process, the two groups of connecting screws on the same side are limited by the two groups of fixed blocks on the same side, so that the two groups of clamps on the same side can avoid clamping and damaging the beverage bottle, when the group of mounting plates passes between the two groups of second electromagnets, the two groups of second electromagnets can adsorb the two groups of limiting blocks on the same side to make the two groups of clamps on the same side separate from each other again, at this time, the filled beverage bottle can be taken out, before the beverage production intelligent conveying device is actually used, the two groups of connecting screws on the same side can be moved, when the two groups of connecting screws on the same side are moved to suitable positions, the two groups of connecting screws on the same side are threadedly matched with the four groups of connecting nuts on the same side, the operator rotates the four groups of connecting nuts on the same side clockwise and counterclockwise by hand, when the four groups of connecting nuts on the same side are in close contact with the two groups of horizontal plates on the same side respectively, the use position of the two groups of connecting screws on the same side is fixed, and the use of the remaining groups of mounting plates is the same as the operation, through the mounting plates, the beverage bottle can be conveniently clamped and unloaded, the investment cost and operation steps of the beverage production intelligent conveying device are reduced, and the intelligent conveying of the beverage production intelligent conveying device is realized.

[0016] (2), the utility model discloses a gas storage tank is provided, according to the operation known, when beverage bottle is installed, the conveying belt of chain plate conveyor can drive multiple beverage bottles to move through multiple installation plates, when a beverage bottle moves to between infrared emitter and infrared receiver, infrared receiver sends signal to controller, and controller makes electric telescopic rod extend, simultaneously, and chain plate conveyor stops, gas storage tank moves down, and sealing plug can be inserted into the inside of a beverage bottle, when pressure sensor contacts the open end of beverage bottle, pressure sensor can send signal to controller, and controller makes pump work, and pump can draw the nitrogen gas in nitrogen tank into the inside of gas storage tank through suction pipe and connecting pipe, and the nitrogen gas in gas storage tank can be filled into the inside of beverage bottle through exhaust pipe, when the air pressure between gas storage tank and beverage bottle reaches the preset value of first air pressure sensor, can send signal to controller, and controller makes second air pressure sensor energized work, simultaneously, and closes two first electromagnetic valves, when beverage bottle has leakage, when the air pressure in gas storage tank and beverage bottle reaches the preset value of second air pressure sensor, can send signal to controller, and controller can make external alarm work, when time reaches the preset value of timer, timer sends signal to controller, and controller can open and close second electromagnetic valve, and the nitrogen gas in gas storage tank and beverage bottle can be discharged through air release pipe, and at the same time, controller makes electric telescopic rod shorten reset, and makes chain plate conveyor continue to work, the use of the rest each group beverage bottle, same operation can be obtained, through the gas storage tank set up, have gas tightness detection structure, can detect whether beverage bottle has leakage, improve the practicality of intelligent conveying device for beverage production. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 is a structural schematic diagram of an intelligent conveying device for beverage production according to an embodiment of the present application;

[0019] Figure 2 is a front view of a portal frame according to an embodiment of the present application;

[0020] Figure 3 is a perspective view of a cross plate according to an embodiment of the present application;

[0021] Figure 4 is a perspective view of a gas storage tank according to an embodiment of the present application; Figure 1 is an enlarged view of A in figure 8;

[0022] Figure 5According to the embodiment of the utility model Figure 2 Zoomed in view of B.

[0023] In the figure:

[0024] 1, chain plate conveyor;2, gantry;3, gas storage tank;4, mounting plate;5, fixed block;6, cross plate;7, clamping plate;8, extension spring;9, limit block;10, limit slot;11, connecting screw;12, connecting nut;13, first electromagnet;14, second electromagnet;15, positioning plate;16, infrared emitter;17, infrared receiver;18, electric telescopic rod;19, connecting pipe;20, air release pipe;21, nitrogen tank;22, pump;23, air pipe;24, first electromagnetic valve;25, sealing plug;26, exhaust pipe;27, pressure sensor;28, first air pressure sensor;29, second air pressure sensor;30, second electromagnetic valve. DETAILED DESCRIPTION

[0025] To further illustrate the embodiments, the utility model provides with drawings, these drawings are part of the utility model disclosure, it mainly used to explain the embodiment, and can cooperate the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the figure are not drawn according to scale, and similar component symbols are usually used to indicate similar components.

[0026] According to the embodiment of the utility model, an intelligent conveying device for beverage production is provided.

[0027] The utility model will be further explained in combination with the specific embodiment and the drawings, such as Figures 1-5As shown, according to the beverage production with the intelligent conveying device of the utility model embodiment, including chain plate conveyor 1 and portal frame 2, the output band surface of chain plate conveyor 1 is provided with multiple sets of mounting plate 4, one side of chain plate conveyor 1 is provided with electric control box, and the inside of electric control box is provided with controller and timer, gas storage tank 3 is arranged between chain plate conveyor 1 and portal frame 2, the upper portion of chain plate conveyor 1 is provided with two sets of first electromagnet 13 and two sets of second electromagnet 14, the upper portion of multiple sets of mounting plate 4 is provided with two sets of fixed block 5, the opposite faces of two sets of fixed block 5 of the same side are slidably penetrated with horizontal plate 6, the opposite ends of two sets of horizontal plate 6 of the same side are provided with clamping plate 7, the remote ends of two sets of horizontal plate 6 of the same side are provided with limiting block 9, the upper portion of two sets of horizontal plate 6 of the same side is provided with limiting slot 10, the inside of two sets of limiting slot 10 of the same side is penetrated with connecting screw 11, the sidewall of two sets of connecting screw 11 of the same side is provided with two sets of connecting nut 12, the sidewall of two sets of horizontal plate 6 of the same side is provided with telescopic spring 8, through the mounting plate 4 set, can be convenient for clamping and unloading of beverage bottle, the input cost and operation steps of beverage production with the intelligent conveying device are reduced, and the intelligent conveying of beverage production with the intelligent conveying device beverage bottle is realized.

[0028] In one embodiment, the same side two sets of connecting screw 11 and the same side four sets of connecting nut 12 are threadedly matched with each other, so as to conveniently adjust the use position of the same side four sets of connecting nut 12.

[0029] In one embodiment, the upper part of the gantry 2 is penetrated by an electric telescopic rod 18, the telescopic end of which is fixedly connected with the upper part of the gas storage tank 3, the upper part of the gas storage tank 3 is penetrated by a connecting pipe 19 and a gas discharge pipe 20, the inside top surface of the gantry 2 is provided with a nitrogen tank 21, the outer wall of which is provided with a suction pump 22, the input end of which is clamped with a suction pipe 23, one end of which is inserted into the inside of the gas storage tank 3, one end of the connecting pipe 19 is clamped with the output end of the suction pump 22, the side walls of the connecting pipe 19 and the suction pipe 23 are both provided with a first electromagnetic valve 24, the side wall of the gas discharge pipe 20 is provided with a second electromagnetic valve 30, the inside top surface of the gas storage tank 3 is provided with a first gas pressure sensor 28 and a second gas pressure sensor 29, the inside bottom surface of the gas storage tank 3 is fixedly penetrated by a sealing plug 25, the upper part of which is fixedly penetrated by a gas discharge pipe 26, the lower part of the gas storage tank 3 is provided with a pressure sensor 27, the end surface of the gantry 2 is provided with two sets of positioning plates 15, the opposite surfaces of which are respectively provided with an infrared emitter 16 and an infrared receiver 17, the infrared emitter 16, the infrared receiver 17, the electric telescopic rod 18, the two sets of first electromagnetic valves 24, the pressure sensor 27, the first gas pressure sensor 28, the second gas pressure sensor 29, the second electromagnetic valve 30 and the timer are electrically connected with the controller, the gas storage tank 3 is provided, which has a gas tightness detection structure, which can detect whether the beverage bottle has a leakage, and improves the practicality of the intelligent conveying device for beverage production.

[0030] In one embodiment, the plurality of limiting blocks 9 are made of iron material, which provides protection for the adsorption of the two sets of first electromagnets 13 and the two sets of second electromagnets 14.

[0031] In one embodiment, the infrared emitter 16 and the infrared receiver 17 are located on the same horizontal line, which avoids the mispositioning of the infrared emitter 16 and the infrared receiver 17, which causes the infrared receiver 17 to fail to receive the light emitted by the infrared emitter 16.

[0032] In one embodiment, the controller is electrically connected with the chain plate conveyor 1, the two sets of first electromagnets 13 and the two sets of second electromagnets 14 through wires, the control circuit of the controller can be realized through simple programming by those skilled in the art, which belongs to the common knowledge in the art, only the use is described, without modification, therefore the control mode and the circuit connection are not described in detail.

[0033] Working principle: when the beverage production intelligent conveying device is actually used, the controller is connected to the power supply and the external alarm, the controller can make the chain plate conveyor 1, two groups of first electromagnet 13 and two groups of second electromagnet 14 work, the chain plate conveyor 1 can drive the multiple groups of mounting plate 4 to move, when a group of mounting plate 4 moves to the two groups of first electromagnet 13, the two groups of first electromagnet 13 can attract the two groups of limiting block 9 on the same side, so that the two groups of clamping plate 7 on the same side are separated from each other, in this process, the two groups of clamping plate 7 on the same side can extrude the two groups of extension spring 8 on the same side, when the gap length between the two groups of clamping plate 7 on the same side reaches the appropriate value, the beverage bottle can be placed between the two groups of clamping plate 7 on the same side, when this group of mounting plate 4 is separated from the gap between the two groups of first electromagnet 13, the two groups of extension spring 8 on the same side can push the two groups of clamping plate 7 on the same side, so that the two groups of clamping plate 7 on the same side move towards each other to clamp the beverage bottle, in this process, the two groups of connecting screw 11 on the same side are limited by the two groups of fixed block 5, which can avoid the clamping plate 7 on the same side from damaging the beverage bottle, when this group of mounting plate 4 passes through the two groups of second electromagnet 14, the two groups of second electromagnet 14 can attract the two groups of limiting block 9 on the same side, so that the two groups of clamping plate 7 on the same side are separated from each other again, at this time, the filled beverage bottle can be taken out, before the beverage production intelligent conveying device is actually used, the two groups of connecting screw 11 on the same side can be moved, when the two groups of connecting screw 11 on the same side are moved to the appropriate position, the two groups of connecting screw 11 on the same side are used in combination with the four groups of connecting nut 12 on the same side through screw thread, the workers rotate the four groups of connecting nut 12 on the same side clockwise and counterclockwise, when the four groups of connecting nut 12 on the same side are in close contact with the two groups of horizontal plate 6 on the same side respectively, the position of the two groups of connecting screw 11 on the same side is fixed, the use of the remaining groups of mounting plate 4 is the same as the operation, through the mounting plate 4 arranged, the beverage bottle can be clamped and unloaded conveniently, the investment cost and operation steps of the beverage production intelligent conveying device are reduced, the intelligent conveying of the beverage production intelligent conveying device is realized, at the same time, according to the above operation, when the beverage bottle is installed, the chain plate conveyor 1 can drive multiple beverage bottles to move through the multiple groups of mounting plate 4, when a beverage bottle moves between the infrared emitter 16 and the infrared receiver 17, the infrared receiver 17 sends a signal to the controller, the controller makes the electric telescopic rod 18 extend, at the same time, the chain plate conveyor 1 is stopped, the gas storage tank 3 moves downward, the sealing plug 25 can be inserted into the beverage bottle, when the pressure sensor 27 contacts the opening end of the beverage bottle, the pressure sensor 27 can send a signal to the controller, the controller makes the pump 22 work, the pump 22 can suck the nitrogen in the nitrogen tank 21 into the gas storage tank 3 through the suction pipe 23 and the connecting pipe 19, the nitrogen in the gas storage tank 3 can be filled into the beverage bottle through the exhaust pipe 26, when the gas pressure between the gas storage tank 3 and the beverage bottle reaches the preset value of the first gas pressure sensor 28, a signal can be sent to the controller, the controller makes the second gas pressure sensor 29 work, at the same time, the two groups of first electromagnetic valve 24 are closed, when the beverage bottle has a leakage,When the gas pressure in the gas storage tank 3 and the beverage bottle reaches the preset value of the second gas pressure sensor 29, a signal can be sent to the controller, the controller can make the external alarm work, when the time reaches the preset value of the timer, the timer sends a signal to the controller, the controller can open and close the second electromagnetic valve 30, the nitrogen in the gas storage tank 3 and the beverage bottle can be discharged through the gas discharge pipe 20, at the same time, the controller makes the electric telescopic rod 18 shorten and reset, and makes the chain plate conveyor 1 continue to work, and the use of the remaining groups of beverage bottles is the same as the operation, through the set gas storage tank 3, the airtightness detection structure is provided, whether the beverage bottle has a leakage can be detected, and the practicality of the intelligent conveying device for beverage production is improved.

[0034] In the utility model, unless another definite provision and limitation, the terms "mount", "set", "connect", "fix", "screw" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can pass through intermediate medium indirectly connect, can be two element inside communication or two element mutual action relation, unless another definite limitation, for the ordinary skilled in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0035] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should include in the protection scope of the utility model.

Claims

1. An intelligent conveying device for beverage production, comprising a chain plate conveyor (1) and a gantry (2), characterized in that: The output belt surface of the chain plate conveyor (1) is installed with multiple groups of mounting plates (4), an electric control box is installed on one side of the chain plate conveyor (1), and a controller and a timer are installed inside the electric control box, an air storage box (3) is provided between the chain plate conveyor (1) and the gantry (2), two groups of first electromagnets (13) and two groups of second electromagnets (14) are installed on the upper part of the chain plate conveyor (1), and two groups of fixing blocks (5) are installed on the upper part of the multiple groups of mounting plates (4), and the two groups of fixing blocks (5) on the same side are opposite to each other. The two groups of horizontal plates (6) on the same side are both slidably penetrated by a horizontal plate (6), the facing ends of the two groups of horizontal plates (6) on the same side are both installed with a clamping plate (7), the distal ends of the two groups of horizontal plates (6) on the same side are both installed with a limiting block (9), the upper parts of the two groups of horizontal plates (6) on the same side are both provided with a limiting slot (10), the interiors of the two groups of limiting slots (10) on the same side are both penetrated by a connecting screw (11), the side walls of the two groups of connecting screws (11) on the same side are both sleeved with two groups of connecting nuts (12), and the side walls of the two groups of horizontal plates (6) on the same side are both sleeved with a telescopic spring (8).

2. The intelligent conveying device for beverage production according to claim 1, characterized in that: The threads of the two groups of connecting screws (11) on the same side and the four groups of connecting nuts (12) on the same side cooperate with each other.

3. The intelligent conveying device for beverage production according to claim 1, characterized in that: The upper part of the gantry (2) is penetrated by an electric telescopic rod (18), the telescopic end of the electric telescopic rod (18) is fixedly connected to the upper part of the gas storage box (3), the upper part of the gas storage box (3) is penetrated by a connecting pipe (19) and an air release pipe (20), the inner top surface of the gantry (2) is installed with a nitrogen tank (21), and the outer wall of the nitrogen tank (21) is installed with a pump (22), and the input end of the pump (22) is clamped with an air extraction pipe (23), one end of the air extraction pipe (23) is inserted into the interior of the gas storage box (3), one end of the connecting pipe (19) is clamped with the output end of the pump (22), the side walls of the connecting pipe (19) and the air extraction pipe (23) are both provided with a first electromagnetic valve (24), the side wall of the air release pipe (20) is provided with a second electromagnetic valve (30), the inner top surface of the gas storage box (3) is installed with a nitrogen tank (21), and the outer wall of the nitrogen tank (21) is installed with a pump (22), and the input end of the pump (22) is clamped with an air extraction pipe (23), one end of the air extraction pipe (23) is inserted into the interior of the gas storage box (3), and one end of the connecting pipe (19) is clamped with the output end of the pump (22), the side walls of the connecting pipe (19) and the air extraction pipe (23) are both provided with a first electromagnetic valve (24), the side wall of the air release pipe (20) is provided with a second electromagnetic valve (30), and the inner top surface of the gas storage box (3) is installed with a nitrogen tank (21). A first air pressure sensor (28) and a second air pressure sensor (29) are installed on the surface, a sealing plug (25) is fixedly passed through the inner bottom surface of the air storage box (3), and an exhaust pipe (26) is fixedly passed through the upper part of the sealing plug (25), a pressure sensor (27) is installed on the lower part of the air storage box (3), two groups of positioning plates (15) are installed on the end surface of the gantry (2), and infrared transmitters (16) and infrared receivers (17) are respectively installed on the facing surfaces of the two groups of positioning plates (15), and the infrared transmitters (16), infrared receivers (17), electric telescopic rods (18), two groups of the first solenoid valves (24), pressure sensors (27), first air pressure sensors (28), second air pressure sensors (29), second solenoid valves (30) and timers are electrically connected to the controller.

4. The intelligent conveying device for beverage production according to claim 1, characterized in that: The plurality of groups of limit blocks (9) are all made of iron material.

5. The intelligent conveying device for beverage production according to claim 3, characterized in that: The infrared transmitter (16) and the infrared receiver (17) are both located on the same horizontal line.

6. The intelligent conveying device for beverage production according to claim 1, characterized in that: The controller is electrically connected to the chain plate conveyor (1), two groups of the first electromagnets (13) and two groups of the second electromagnets (14) via electric wires.

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