Tobacco shred box encasement weighing device

Abstract

The utility model discloses a tobacco shred box encasement weighing device, relates to weighing machinery technical field, including tobacco shred encasement machine, box body, box cover and roller way conveyer belt, the tobacco shred encasement machine includes material conveying unit, box pressing unit, frame and cover adding and taking unit, the material conveying unit is installed in the frame and is used for putting tobacco shred into the box body, and the box pressing unit is installed in the box body. The box pressing unit is installed on the top of the machine frame and used for pressing tobacco shreds in a box body, the cover adding and taking unit is installed on one side of the machine frame and used for disassembling and installing a box cover, the roller way conveying belt is installed on the ground and penetrates through the interior of the machine frame, and the weighing unit is installed on the ground and used for weighing the tobacco shreds in the box body. The weighing unit is arranged in the box body, located under the plastic unit and used for weighing the box body, and when the weight in the box body reaches a set value, the plastic unit is closed. The defects that due to the fact that an existing cut tobacco box filling machine lacks real-time weighing equipment for box bodies, the weights of the packaged box bodies are not uniform, and errors exist are overcome.

Description

TECHNICAL FIELD

[0001] The utility model belongs to weighing machinery technical field, especially relate to a cut tobacco box packing weighing device. BACKGROUND

[0002] After cut tobacco is processed and handled, it is generally first packed and then stored in a warehouse, and then taken out from the warehouse according to market conditions to make cigarettes. The existing cut tobacco is packed into a stainless steel box by a cut tobacco packing machine, and the box is driven into the cut tobacco packing machine by a conveyor belt, a certain amount of cut tobacco is put into the box by the cut tobacco packing machine, and then the box is sealed. However, the current cut tobacco packing machine lacks real-time weighing equipment for the box when packing cut tobacco into the box, so the weight of the packed box is not uniform and has errors, which may cause the box to be sealed before it is fully packed, and the utilization efficiency of the box is low. In addition, when the cut tobacco is taken out according to the amount to make cigarettes, the weight needs to be measured again, which is time-consuming and laborious and is not convenient for production management.

[0003] Therefore, a cut tobacco box packing weighing device is needed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a cut tobacco box packing weighing device to overcome the defect that the existing cut tobacco packing machine lacks real-time weighing equipment for the box, so the weight of the packed box is not uniform and has errors. The specific technical scheme is as follows:

[0005] A cut tobacco box packing weighing device, comprising a cut tobacco packing machine, a box, a box cover and a roller conveyor belt, the cut tobacco packing machine comprising a material conveying unit, a box pressing unit, a rack and a cover adding and removing unit, the material conveying unit being installed in the rack and used for putting cut tobacco into the box, the box pressing unit being installed on the top of the rack and used for pressing the cut tobacco in the box, the cover adding and removing unit being installed on one side of the rack and used for removing and installing the box cover, the roller conveyor belt being installed on the ground and passing through the inside of the rack; further comprising a weighing unit, the weighing unit being installed on the ground and located directly below the plastic unit and used for weighing the box, the plastic unit being closed when the weight in the box reaches a set value.

[0006] Preferably, the weighing unit comprises a base, a supporting plate, a lifting rod and a pressure sensor, the base being installed on the ground and located below the roller conveyor belt, the pressure sensor being installed in the base, a plurality of lifting rods being vertically installed on the pressure sensor, the supporting plate being installed on the end of the lifting rod away from the base, the pressure sensor being electrically connected with the plastic unit, and the roller conveyor belt being provided with a gap for the lifting rod to pass through.

[0007] Preferably, the supporting plate is provided with a non-slip mat for increasing friction on the side away from the lifting rod.

[0008] Preferably, the drying protection unit comprises electric push rods, sleeves, air inlet holes, air heaters and air inlet pipes, the electric push rods are fixedly installed on the frame with output ends downward, one end of the sleeve is connected with the output end of the electric push rod, the sleeve is sleeved outside the plastic unit, the air inlet holes are formed in the side wall of the sleeve, one end of the air inlet pipe is connected with the air inlet hole and the other end is connected with the air heater.

[0009] Preferably, the axis of the air inlet hole forms an acute angle with the horizontal plane, and the end of the air inlet hole communicating with the inner side wall of the sleeve is lower than the end of the air inlet hole communicating with the outer side wall of the sleeve.

[0010] Preferably, a distance sensor is installed on the end of the sleeve away from the electric push rod, and the distance sensor is electrically connected with the electric push rod.

[0011] Preferably, the projection of the sleeve on the horizontal plane is completely covered by the projection of the opening of the box on the horizontal plane.

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] 1. The present application installs a weighing unit below the roller conveyor to monitor the weight of the tobacco in the box in real time, stops the roller conveyor when the box moves to the set position, lifts the box above by the lifting rod to make it leave the roller conveyor, makes the box completely independent, reduces the interference of other factors when the box is weighed, and guarantees the accurate weighing of the box, thereby facilitating the subsequent production management.

[0014] 2. The present application surrounds the path of the tobacco in the box by the drying protection unit before the tobacco is loaded into the box, pours dry hot air into the box, discharges the original airflow of the sleeve and the box, avoids the tobacco from contacting the moisture in the air and the box during the falling process, prevents the change of the humidity of the tobacco from affecting the overall density, and guarantees the accuracy of the weighing unit. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0016] Fig. 1 is a schematic view of the overall structure of the present application.

[0017] Fig. 2 is a standby state schematic diagram of the utility model.

[0018] Fig. 3 is a working state schematic diagram of the utility model.

[0019] Main figure mark explanation:

[0020] 1, tobacco baling machine;11, material conveying unit;12, baling unit;13, rack;14, cover adding and removing unit;2, box;3, box cover;4, roller conveyor belt;5, weighing unit;51, base;52, lifting rod;53, supporting plate;6, drying protection unit;61, electric push rod;62, sleeve;63, air inlet hole;64, air inlet pipe. Specific implementation

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Next, reference Figs. 1 to 3 will be made to the working principle in the embodiment to make those skilled in the art better understand the utility model:

[0023] A tobacco baling and weighing device, comprising a tobacco baling machine 1, a box 2, a box cover 3 and a roller conveyor belt 4, the tobacco baling machine 1 comprises a material conveying unit 11, a baling unit 12, a rack 13 and a cover adding and removing unit 14, the material conveying unit 11 is bolted in the rack 13 and is used for putting tobacco into the box 2. The baling unit 12 is bolted on the top of the rack 13 and is used for compacting the tobacco in the box 2, facilitating storage. The cover adding and removing unit 14 is bolted on one side of the rack 13 and is used for disassembling and assembling the box cover 3, when the box 2 and the box cover 3 enter directly below the material conveying unit 11, the cover adding and removing unit 14 opens the box cover 3 and shifts to the side of the rack 13, so that the box cover 3 does not affect the tobacco entering the box 2, when the tobacco baling is completed, the box 2 is moved to below the box cover 3 under the drive of the roller conveyor belt 4, and the cover adding and removing unit 14 assembles the box cover 3 back to the box 2. The roller conveyor belt 4 is installed on the ground, and the roller conveyor belt 4 passes through the inside of the rack 13.

[0024] The weighing unit 5 is installed on the ground and is located directly below the plastic unit, and is used for weighing the box 2, when the weight in the box 2 reaches the set value, the plastic unit is closed, avoiding subsequent tobacco entering the box 2.

[0025] The weighing unit 5 includes a base 51, a supporting plate 53, lifting rods 52 and a pressure sensor. The base 51 is installed on the ground by anchor bolts and is located below the roller conveyor 4. The pressure sensor is installed in the base 51 by bolts. The plurality of lifting rods 52 are installed vertically on the pressure plate of the pressure sensor by bolts, generally at the four corners close to the base 51, corresponding to the four corners of the bottom of the box 2. The end of the lifting rod 52 away from the base 51 is provided with the supporting plate 53 by bolts, which is used to increase the contact area with the box 2 and ensure the stability of the box 2 during lifting movement. The pressure sensor is electrically connected with the plastic unit. When the pressure sensor reaches the set weight, the feeding unit 11 is closed.

[0026] When the box 2 moves to the set position, the roller conveyor 4 stops starting, and the lifting rod 52 lifts the box 2 above to make it away from the roller conveyor 4, so that the box 2 is completely independent, reduces the interference of other factors when the box 2 is weighed, and ensures the accurate weighing of the box 2, thereby facilitating the subsequent production management. The lifting rod 52 can be driven by hydraulic pressure, air pressure and electricity, etc. The roller conveyor 4 is provided with a gap for the lifting rod 52 to pass through, which can increase the gap between the rollers or cancel one or two rollers.

[0027] The side of the supporting plate 53 away from the lifting rod 52 is provided with an anti-skid pad for increasing friction, which avoids the situation that the box 2 may be tilted due to the uneven weight of the tobacco in the box 2.

[0028] The drying protection unit 6 includes an electric push rod 61, a sleeve 62, an air inlet hole 63, a hot air machine and an air inlet pipe 64. A plurality of electric push rods 61 are fixedly installed on the rack 13 by bolts, and the output end faces downward. One end of the sleeve 62 is connected with the output end of the electric push rod 61 by bolts, and the sleeve 62 is sleeved outside the plastic unit. The air inlet hole 63 is formed in the side wall of the sleeve 62. One end of the air inlet pipe 64 is connected with the air inlet hole 63 by bonding, and the other end is connected with the hot air machine by a flange plate.

[0029] Because the tobacco may be dispersed in the process of falling, the tobacco will be fully mixed with the air, so the sleeve 62 moves down to surround the path of the tobacco moving to the box 2 before the tobacco is packed in the box 2, and the distance between the end of the sleeve 62 and the inside bottom of the box 2 is generally 10-20 cm, then the hot air machine is started, and the dry hot air is filled into the box 2 through the air pipe to discharge the original air flow of the sleeve 62 and the box 2, so as to avoid the tobacco from contacting the moisture in the air outside and in the box 2 in the process of falling, prevent the change of the moisture of the tobacco from affecting the overall density, and ensure the accuracy of the weighing unit 5. At the same time, the increase of the moisture of the tobacco is also avoided to affect the storage. In addition, the tobacco will produce dust in the process of falling, and the sleeve 62 can avoid the large-scale floating of the dust to ensure the safety and hygiene in the workshop. The sleeve 62 will gradually move upward according to the starting time of the material conveying unit 11 to avoid interference with the tobacco in the box 2, and the sleeve 62 will leave the box 2 under the driving of the electric push rod 61 after the packing of the tobacco is completed.

[0030] The axis of the air inlet hole 63 is at an acute angle with the horizontal plane, and the end of the air inlet hole 63 communicating with the inner wall of the sleeve 62 is lower than the end of the air inlet hole 63 communicating with the outer wall of the sleeve 62. The inclined air inlet hole 63 can avoid the tobacco from falling into the air inlet hole 63 and causing blockage in the process of falling.

[0031] The end of the sleeve 62 away from the electric push rod 61 is provided with a distance sensor, such as a sound wave sensor, an infrared sensor, and a visual sensor. Because the tobacco may be unevenly distributed in the box 2 during the packing, the uniform upward movement of the sleeve 62 is not suitable, so the distance sensor is electrically connected with the electric push rod 61, the distance sensor accurately measures the distance between the sleeve 62 and the tobacco, so as to accurately adjust the extension distance and speed of the electric push rod 61 to avoid the interference between the sleeve 62 and the tobacco.

[0032] The projection of the sleeve 62 about the horizontal plane is completely covered by the projection of the opening of the box 2 about the horizontal plane, so that the sleeve 62 can completely enter the box 2, and when the hot air machine blows, the air in the sleeve 62 and the box 2 will be discharged from the gap between them.

[0033] In summary, the operation process of the utility model is as follows: the box 2 and the box cover 3 are moved above the weighing unit 5, the cover taking unit 14 transfers the box cover 3 to one side of the rack 13, the lifting rod 52 lifts the box 2 away from the roller conveyor 4, the pressure sensor is zeroed once, the electric push rod 61 drives the sleeve 62 to move downward into the distance of 10 cm from the inside bottom of the box 2, the hot air machine is started, the dry hot air flows into the sleeve 62 and the box 2 through the air inlet pipe 64 and the air inlet hole 63, and the air in the box 2 is discharged from the gap between the box 2 and the sleeve 62. Then the material feeding unit 11 adds the tobacco into the box 2, the distance sensor accurately measures the distance between the sleeve 62 and the tobacco, so as to accurately adjust the extension distance and speed of the electric push rod 61. When the pressure sensor detects that the weight of the box 2 reaches the set value, the material feeding unit 11 is closed. After the tobacco is packed, the sleeve 62 is driven by the electric push rod 61 to leave the box 2, the lifting rod 52 re-places the box 2 on the roller conveyor, then the box pressing unit 12 compacts the tobacco in the box 2, and finally the box 2 is moved below the box cover 3 under the drive of the roller conveyor 4, and the cover taking unit 14 re-installs the box cover 3 on the box 2.

[0034] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of explanation and illustration, and is not intended to limit the utility model to the precise forms disclosed, and as such many modifications and variations will be apparent to those skilled in the art from the above teachings, although the embodiments of the utility model have been shown and described in detail, the specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner, the exemplary embodiments are selected and described for the purpose of explaining the specific principles of the utility model and its practical application, so that those skilled in the art can make modifications, replacements, variations and various different selections and changes to the embodiments according to the needs after reading the specification without departing from the principles and purposes of the utility model, as long as they are within the scope of the claims of the utility model, they are protected by the patent law.

Claims

1. A tobacco baling and weighing device, comprising a tobacco baling machine (1), a bale (2), a bale cover (3) and a roller conveyor (4), the tobacco baling machine (1) comprising a material feeding unit (11), a bale pressing unit (12), a frame (13) and a bale cover adding and removing unit (14), the material feeding unit (11) being installed in the frame (13) and used for putting tobacco into the bale (2), the bale pressing unit (12) being installed on the top of the frame (13) and used for pressing the tobacco in the bale (2), the bale cover adding and removing unit (14) being installed on one side of the frame (13) and used for removing and adding the bale cover (3), the roller conveyor (4) being installed on the ground and passing through the inside of the frame (13); characterized in that, Also include a weighing unit (5), the weighing unit (5) is installed on the ground, and located directly below the material conveying unit, for weighing the box (2), when the weight in the box (2) reaches the set value, the material conveying unit is closed.

2. A tobacco bale weighing apparatus as claimed in claim 1 wherein, The weighing unit (5) comprises a base (51), a supporting plate (53), a lifting rod (52) and a pressure sensor, the base (51) is installed on the ground below the roller conveyor (4), the pressure sensor is installed in the base (51), a plurality of lifting rods (52) are vertically installed on the pressure sensor, the end of the lifting rod (52) away from the base (51) is provided with a supporting plate (53), the pressure sensor is electrically connected with the material conveying unit, the roller conveyor (4) is provided with a gap for the lifting rod (52) to pass through.

3. A tobacco bale weighing apparatus as claimed in claim 2, wherein, The side of the supporting plate (53) away from the lifting rod (52) is provided with an anti-skid pad for increasing friction.

4. A tobacco bale weighing and packing apparatus according to claim 1, wherein, Also include a drying protection unit (6), the drying protection unit (6) comprises an electric push rod (61), a sleeve (62), an air inlet hole (63), a hot air machine and an air inlet pipe (64), a plurality of electric push rods (61) are fixedly installed on the rack (13), and the output end faces downward, one end of the sleeve (62) is connected with the output end of the electric push rod (61), the sleeve (62) is sleeved outside the material conveying unit, the air inlet hole (63) is formed in the side wall of the sleeve (62), one end of the air inlet pipe (64) is connected with the air inlet hole (63), and the other end is connected with the hot air machine.

5. A tobacco bale weighing apparatus as claimed in claim 4, wherein, The axis of the air inlet hole (63) forms an acute angle with the horizontal plane, and the end of the air inlet hole (63) communicating with the inner side wall of the sleeve (62) is lower than the end of the air inlet hole (63) communicating with the outer side wall of the sleeve (62).

6. A tobacco bale weighing apparatus as claimed in claim 4 wherein, The end of the sleeve (62) away from the electric push rod (61) is provided with a distance sensor, and the distance sensor is electrically connected with the electric push rod (61).

7. A tobacco bale weighing and packing apparatus according to claim 4 wherein, The projection of the sleeve (62) on the horizontal plane is completely covered by the projection of the opening of the box (2) on the horizontal plane.

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