High-precision tobacco shred continuous feeding and weighing device

Abstract

The utility model discloses a high-precision tobacco shred continuous feeding and weighing device. According to the technical scheme, the high-precision tobacco shred continuous feeding and weighing device comprises a stock bin, a tobacco shred cutting device and a tobacco shred weighing device. The stock bin is arranged on one side of the deck plate, the cut tobacco cutting device is arranged in the middle of the deck plate, a notch is formed in the middle of the other side of the deck plate, and the cut tobacco weighing device is arranged in the notch; the tobacco shred weighing device comprises a micro-range weighing sensor and a scale box; a sensor fixing seat is arranged below the micro-range weighing sensor, and the scale box is fixed on the micro-range weighing sensor. The high-precision tobacco shred weighing device adopts a micro-range weighing sensor, so that the weighing precision is improved, a cutter can be accurately inserted into a cutting seam to cut off tobacco shreds, the scale box is of a sealed structure, and the test weighing requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of precision weighing technology, and in particular to a high-precision continuous feeding and weighing device for tobacco shreds. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Currently, the weighing method for tobacco shreds usually involves using a vibratory feeder to discharge the tobacco shreds into a weighing pan for weighing. Although the weighing sensor itself has no problem with weighing accuracy, the weighing accuracy is difficult to meet the requirements due to the feeding control problem.

[0004] Patent CN107271009B discloses an online weighing device and method for tobacco shreds, which involves using a cantilever beam weighing mechanism and a suspended hopper to accurately weigh tobacco shreds. However, it only involves the accurate weighing of tobacco shreds. Since tobacco shreds have a certain degree of continuity, how to achieve cutting during the high-precision weighing process is a problem that the existing technology cannot solve. Furthermore, in the existing technology, the entire process of tobacco shred weighing, including tobacco shred pushing, cutting, and conveying, still requires manual assistance. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a high-precision continuous feeding and weighing device for tobacco shreds. The device pushes the tobacco shreds into a closed weighing pan via a spiral shaft, achieving high-precision weighing of the tobacco shreds. A pneumatic cutter cuts the tobacco shreds, and the tobacco shreds are conveyed through an air duct. This device enables high-precision weighing of tobacco shreds and also achieves automatic weighing, cutting, and conveying of tobacco shreds, reducing manual labor input.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] In the first aspect, this utility model provides a high-precision continuous feeding and weighing device for tobacco shreds, including a hopper, a tobacco shred cutting device and a tobacco shred weighing device;

[0008] The hopper is located on one side of the table panel, the tobacco cutting device is located in the middle of the table panel, and a slot is provided in the middle of the other side of the table panel for arranging a tobacco weighing device.

[0009] The tobacco weighing device comprises a micro-range weighing sensor and a scale pan box, a sensor fixing seat is arranged below the micro-range weighing sensor, the scale pan box is fixed on the micro-range weighing sensor, an air duct is arranged on the rear side of the scale pan box, the air duct is provided with a material blowing speed regulating valve, a material discharging duct is arranged on the front side of the scale pan box, and a scale pan cover is arranged on the top of the scale pan box to form a closed space.

[0010] The material bin is connected with the scale pan box through a discharging pipe, and a cutting seam is arranged between the discharging pipe and the scale pan box.

[0011] Further, the tobacco cutting device comprises a guide fixing plate, a cylinder fixing seat, a cylinder, a speed regulating valve, a guide rail, a sliding block, a sliding plate and a cutter, the cylinder fixing seat is arranged on the guide fixing plate, the cylinder is arranged above the cylinder fixing seat, two guide rails are arranged on the guide fixing plate and below the cylinder fixing seat and parallel to the extension direction of the cylinder, the sliding block is arranged on each guide rail, the two sliding blocks are connected through the sliding plate to realize synchronous sliding, the sliding plate is connected with the cylinder, the sliding plate is driven by the cylinder to move back and forth, and the cutter is arranged below the sliding plate.

[0012] Further, the cylinder fixing seat is arranged on the side of the guide fixing plate close to the tobacco weighing device.

[0013] Further, two speed regulating valves are arranged on the cylinder, and the two speed regulating valves are arranged on the upper portion and the lower portion of the cylinder respectively to control the extension and retraction of the cylinder.

[0014] Further, the guide fixing plate is fixedly arranged on the middle portion of the table plate and between the material bin and the tobacco weighing device, and the normal direction of the guide fixing plate is parallel to the axial direction of the discharging pipe.

[0015] Further, a spiral shaft is arranged in the material bin to send the tobacco in the material bin into the discharging pipe.

[0016] Further, seat bearings are arranged on the left side and the right side of the material bin respectively to fix the spiral shaft.

[0017] Further, a stepping motor is arranged on the left side of the material bin, and the stepping motor is fixed on the table plate through a motor fixing plate.

[0018] Further, the main shaft of the stepping motor is connected with the spiral shaft through a connecting piece, and the connecting piece is a shaft coupling.

[0019] The beneficial effects of the above-mentioned utility model are as follows:

[0020] The high-precision tobacco shred weighing device disclosed by the utility model adopts a micro-range weighing sensor, and the weighing precision is improved. A cutting gap is arranged between the discharge pipe and the scale pan box, and the weighing error caused by the connection between the discharge pipe and the scale pan box is reduced. The scale pan box is provided with an air duct and a material blowing speed regulating valve, the air volume can be controlled to blow the tobacco shred meeting the weight requirement into the next process; the top is provided with a scale pan cover to form a closed space, the weighing precision is prevented from being interfered by other factors, the screw shaft in the stock bin is driven to feed by a stepping motor, automatic weighing, cutting and conveying are realized, manual input is reduced, and production efficiency is improved.

[0021] In the tobacco shred cutting device, the cutter can accurately cut the tobacco shred by being inserted into the cutting gap, the scale pan box forms a sealed structure, the tobacco shred is blown into the discharging material channel by the air duct and the material blowing speed regulating valve for next processing, the whole device can realize high-precision weighing and automatic cutting of the tobacco shred, the supply of the tobacco shred is controllable, the weighing precision can be controlled to be within 0.03g, and the test weighing requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0022] The drawings accompanying the specification of the utility model form a part of the utility model and serve to provide further understanding of the utility model, and the illustrative embodiments of the utility model and the description thereof serve to explain the utility model, and do not constitute an improper limitation on the utility model.

[0023] Fig. 1 It is a whole structure schematic view of the weighing device of the utility model;

[0024] Fig. 2 It is a front view of the weighing device of the utility model;

[0025] Fig. 3 It is a top view of the weighing device of the utility model.

[0026] Among them, 1, fixed stand; 2, sensor fixing seat; 3, table panel; 4, stepping motor; 5, motor fixing plate; 6, bearing with seat; 7, stock bin; 8, screw shaft; 9, discharge pipe; 10, guide fixing plate; 11, cylinder fixing seat; 12, cylinder; 13, speed regulating valve; 14, guide rail; 15, sliding block; 16, sliding plate; 17, cutter; 18, scale pan box; 19, scale pan cover; 20, air duct; 21, material blowing speed regulating valve; 22, micro-range weighing sensor; 23, discharging material channel. DETAILED DESCRIPTION

[0027] It should be noted that the following detailed description is all exemplary, and aims at providing further description of the utility model. Unless otherwise specified, all the technical and scientific terms used in the utility model have the same meaning as that understood by the ordinary skilled in the art to which the utility model belongs.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise expressly indicated by the present invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] This utility model discloses a high-precision continuous feeding and weighing device for tobacco shreds, such as... Figs. 1-3 As shown, the device includes a hopper 7, a tobacco cutting device, and a tobacco weighing device. The hopper 7 is located on one side of the table panel 3, the tobacco cutting device is located in the middle of the table panel 3, four fixed columns 1 are installed below the table panel 3, and a slot is provided in the middle of the other side of the table panel 3 for arranging the tobacco weighing device. The tobacco weighing device includes a micro-range weighing sensor 22 and a weighing pan box 18. A sensor fixing seat 2 is provided below the micro-range weighing sensor 22, and the weighing pan box 18 is fixed on the micro-range weighing sensor 22. The hopper 7 is connected to the weighing pan box 18 through a discharge pipe 9. A cutting slit is provided between the discharge pipe 9 and the weighing pan box 18 to reduce the weighing error caused by the connection between the weighing pan box 18 and the discharge pipe 9. In this embodiment, high precision means that the weighing error of the tobacco is kept within 0.03g.

[0030] A cutting slit is provided between the left side of the weighing pan box 18 and the discharge pipe 9. An air duct 20 is provided on the rear side of the weighing pan box 18, and a blowing speed regulating valve 21 is provided in the air duct 20 to control the air volume, so that the tobacco that meets the weight requirements can be blown into the next process through the air duct 20. A feeding channel 23 is provided on the front side of the weighing pan box 18 to transport the tobacco to the next process. A weighing pan cover 19 is provided on the top of the conveying weighing pan box 18 to form a closed space and prevent other factors from interfering with the weighing accuracy.

[0031] The tobacco cutting device comprises a guide fixed plate 10, a cylinder fixed seat 11, a cylinder 12, a speed regulating valve 13, a guide rail 14, a sliding block 15, a sliding plate 16 and a cutter 17; the guide fixed plate 10 is fixedly installed at the middle part of the table panel 3 and is located between the hopper 7 and the tobacco weighing device, the normal direction of the guide fixed plate 10 is parallel to the axial direction of the discharge pipe 9; the side of the guide fixed plate 10 close to the tobacco weighing device is provided with the cylinder fixed seat 11, the cylinder fixed seat 11 is provided with the cylinder 12 above, the cylinder 12 is provided with two speed regulating valves 13, which are used for controlling the extension and retraction movement of the cylinder 12, the side of the guide fixed plate 10 close to the tobacco weighing device is also provided with two guide rails 14, the guide rails 14 are arranged below the cylinder fixed seat 11 and are parallel to the extension direction of the cylinder 12, each guide rail 14 is provided with the sliding block 15, the two sliding blocks 15 are connected by the sliding plate 16 to realize synchronous sliding, the sliding plate 16 is connected with the cylinder 12, the sliding plate 16 is driven by the cylinder 12 to move back and forth, the cutter 17 is installed below the sliding plate 16, the cutter 17 can be inserted into the cutting gap formed between the left side of the scale box 18 and the discharge pipe 9 under the driving of the cylinder 12, when the cutter 17 is inserted into the cutting gap, the tobacco is cut, and the scale box 18 becomes a sealed structure, only one outlet at the discharging channel 23, and then the tobacco is blown away from the discharging channel 23 into the next process through the blowing speed regulating valve 21.

[0032] The hopper 7 is fixedly arranged at one side of the table panel 3, the hopper 7 is provided with a spiral shaft 8, which is used for sending the tobacco in the hopper 7 into the discharge pipe 9, the left side of the hopper 7 is provided with a bearing seat 6, the stepping motor 4 is fixed on the table panel 3 through the motor fixed plate 5 and is located at the left side of the hopper 7, the main shaft of the stepping motor 4 is connected with the spiral shaft 8 and provides power for the spiral shaft 8.

[0033] The working process comprises:

[0034] The tobacco is put into the hopper, the stepping motor 4 is started, the stepping motor 4 drives the spiral shaft 8 supported by the bearing seat 6, the spiral shaft 8 rotates to slowly push the tobacco in the hopper 7 into the scale box 18 through the discharge pipe 9; when the weight of the tobacco pushed into the scale box 18 reaches the requirement in the weighing of the micro-range weighing sensor 22, the signal is given to the stepping motor 4 to stop the spiral pushing of the tobacco, because the tobacco has a certain length, there is a certain connection between the outlet of the discharge pipe 9 and the weighed tobacco, in order to ensure the weight accuracy of the tobacco, the cutter 17 is used to cut the tobacco along the outlet of the discharge pipe 9;

[0035] When the weighing and cutting of the tobacco are completed, the cutter 17 is not lifted and blocks the outlet of the discharge pipe 9, at this time, the air duct 20 fixed on the table panel 3 controls the air volume through the blowing speed regulating valve 21 to blow away the tobacco in the scale box 18 which has reached the weight requirement through the discharging channel 23 into the next process, realizing the automatic weighing, cutting and conveying of the tobacco and reducing the labor input.

[0036] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-precision continuous tobacco feeding and weighing device, characterized in that, It comprises a hopper, a tobacco cutting device and a tobacco weighing device. The hopper is arranged at one side of the table panel, the tobacco cutting device is arranged at the middle of the table panel, and a notch is arranged at the middle of the other side of the table panel for arranging the tobacco weighing device. The tobacco weighing device comprises a micro-range weighing sensor and a scale box. The hopper is connected with the scale box through a discharge pipe, and a cutting seam is arranged between the discharge pipe and the scale box.

2. The high-precision continuous tobacco cut filler feeding and weighing device according to claim 1, characterized in that, The tobacco cutting device comprises a guide fixed plate, a cylinder fixed seat, a cylinder, a speed regulating valve, a guide rail, a sliding block, a sliding plate and a cutter.

3. The high-precision cut tobacco continuous feeding and weighing device according to claim 2, characterized in that, The cylinder fixed seat is arranged on the guide fixed plate, the cylinder is arranged above the cylinder fixed seat, two guide rails are arranged on the guide fixed plate and below the cylinder fixed seat and parallel to the extension direction of the cylinder, the sliding block is arranged on each guide rail, the two sliding blocks are connected by the sliding plate to realize synchronous sliding, the sliding plate is connected with the cylinder to realize reciprocating movement, and the cutter is arranged below the sliding plate.

4. The high-precision continuous tobacco cut filler feeding and weighing device according to claim 3, characterized in that, The cylinder fixed seat is arranged on the guide fixed plate close to the tobacco weighing device.

5. The high-precision continuous tobacco cut filler feeding and weighing device according to claim 2, characterized in that, Two speed regulating valves are arranged on the cylinder, one above and one below, to control the extension and retraction of the cylinder.

6. The high-precision continuous tobacco cut filler feeding and weighing device according to claim 1, characterized in that, The guide fixed plate is fixedly arranged on the middle of the table panel and between the hopper and the tobacco weighing device, and the normal of the guide fixed plate is parallel to the axial direction of the discharge pipe.

7. The high-precision cut tobacco continuous feeding and weighing device according to claim 6, characterized in that, A spiral shaft is arranged in the hopper to send the tobacco in the hopper into the discharge pipe.

8. The high-precision cut tobacco continuous feeding and weighing device according to claim 7, characterized in that, Bearing seats are arranged on the left and right sides of the hopper to fix the spiral shaft.

9. The high-precision cut tobacco continuous feeding and weighing device according to claim 8, characterized in that, A stepping motor is arranged on the left side of the hopper and fixed on the table panel by a motor fixed plate. The spindle of the stepping motor is connected with the spiral shaft through a connecting piece, and the connecting piece is a shaft coupling.

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