Automatic tobacco weighing and mixing device

Abstract

The utility model discloses an automatic tobacco weighing and mixing device, and relates to the technical field of tobacco processing. The utility model provides an automatic tobacco weighing and mixing device which comprises a mixing box and a plurality of feeding boxes communicated with the mixing box. A feeding opening is formed in the top of the feeding box, and a discharging limiting mechanism suitable for controlling the tobacco discharging amount and a weighing mechanism suitable for weighing tobacco are sequentially arranged in the feeding box from top to bottom. A discharging port is formed in the bottom of the mixing box, and a stirring mechanism suitable for stirring tobacco is arranged in the mixing box. By arranging the discharging limiting mechanism, the weighing mechanism and the stirring mechanism, automatic discharging, automatic accurate weighing and automatic stirring of tobaccos are achieved, and the processing efficiency of the tobacco mixing technological process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco processing, in particular to an automatic tobacco weighing and mixing device. Background Art

[0002] Tobacco, a natural plant, undergoes multiple processes after harvesting to produce the raw material for cigarettes. Threshing and redrying is a crucial step in tobacco processing, requiring different types of tobacco raw materials to be mixed according to the recipe and proportions before cigarette production. However, existing threshing and redrying formulation equipment used in tobacco processing still has some drawbacks. The tobacco cannot be automatically weighed before processing, requiring manual weighing and mixing, which affects overall processing efficiency.

[0003] In summary, there is an urgent need for a mixing device that can automatically unload, automatically and accurately weigh, and automatically mix. Utility Model Content

[0004] To solve the above problems, the present invention provides an automatic tobacco weighing and mixing device. The mixing device, by providing a feeding restriction mechanism, a weighing mechanism, and a stirring mechanism, achieves automatic feeding, automatic precise weighing, and automatic stirring of tobacco, thereby improving the processing efficiency of the tobacco mixing process.

[0005] The utility model provides an automated tobacco weighing and mixing device, comprising a mixing box and a plurality of feed boxes connected to the mixing box. The feed box has a feed inlet at the top, and a feed restriction mechanism for controlling the amount of tobacco discharged and a weighing mechanism for weighing the tobacco are sequentially provided in the feed box from top to bottom. A discharge outlet is provided at the bottom of the mixing box, and a stirring mechanism for stirring the tobacco is provided in the mixing box.

[0006] In one embodiment, the weighing mechanism includes a weighing scale, a push cylinder, a transmission rack, and a transmission gear. The push cylinder is mounted on the inner wall of the feed box, and the top of the push cylinder is connected to the transmission rack, which meshes with the transmission gear. A transmission shaft is provided in the base of the weighing scale, which passes through and is connected to the transmission gear.

[0007] In one feasible embodiment, a limiting slot is provided in the transmission rack. The weighing mechanism further includes a limiting rod, one end of which is connected to the inner wall of the feed box and the other end is passed through the limiting slot, and the limiting rod is suitable for limiting the travel of the transmission rack.

[0008] In one possible embodiment, the material discharge restriction mechanism includes a plurality of material guide strips positioned below the material feed port, a movable plate positioned below the material guide strips, and a first drive member connected to the movable plate. Adjacent material guide strips form material discharge channels, and the movable plate is provided with a number of guide grooves matching the number of material discharge channels. The first drive member is adapted to drive the movable plate to close or open the material discharge channels.

[0009] In a feasible embodiment, sliders are provided on both sides of the movable plate, and corresponding positions of the feed box are provided with sliding grooves, and the sliders are slidably connected to the sliding grooves.

[0010] In one possible embodiment, the stirring mechanism includes a second driving member and a stirring frame connected to a driving shaft of the second driving member.

[0011] In a possible embodiment, the bottom of the mixing box is provided with supporting legs.

[0012] In a possible embodiment, the feed box is connected to the mixing box via a guide pipe.

[0013] In a feasible embodiment, a material guiding inclined frame is further provided at the material feed port, and the cross-sectional area of the lower half of the material guiding inclined frame gradually decreases from top to bottom.

[0014] In a feasible embodiment, a bottom cover movably connected to the mixing box is provided at the discharge port, and the bottom cover is suitable for closing the discharge port.

[0015] The utility model provides an automatic tobacco weighing and mixing device, which has the following beneficial effects:

[0016] 1) The utility model realizes automatic unloading, automatic precise weighing and automatic stirring of tobacco by setting a unloading limiting mechanism, a weighing mechanism and a stirring mechanism, thereby improving the processing efficiency of the tobacco mixing process.

[0017] 2) The weighing mechanism of the present invention is provided with a push cylinder, a transmission rack and a transmission gear that can rotate and tilt the weighing scale, so that the tobacco can be automatically weighed and automatically fed into the mixing box at the same time.

[0018] 3) The material discharge limiting mechanism in the present invention is provided with a material guide plate and a material discharge channel, and is also provided with a movable plate for closing or opening the material discharge channel, thereby realizing the automation of tobacco discharge and auxiliary realization of the automation of weighing.

[0019] 4) The stirring mechanism of the present invention is provided with a second driving member and a stirring frame, which realizes the automatic stirring of the tobacco mixture, speeds up the mixing speed of multiple tobaccos, and facilitates the subsequent processing of cigarettes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a partial schematic diagram of the weighing mechanism of the utility model.

[0022] Figure 3 It is a partial schematic diagram of the material feeding limiting mechanism of the present invention.

[0023] Figure 4 It is a top view of the material guiding inclined frame and the material guiding strip plate of the present invention.

[0024] Figure 5 It is a cross-sectional view of the chute and slider of the utility model.

[0025] Reference numerals

[0026] Mixing box 1

[0027] Discharge port 11

[0028] Leg 12

[0029] Feed box 2

[0030] Feed port 21

[0031] Material guide inclined frame 22

[0032] Guide tube 23

[0033] Cutting limit mechanism 3

[0034] Guide strip 31

[0035] Feeding channel 31.1

[0036] Activity board 32

[0037] Guide trough 32.1

[0038] Slider 32.2

[0039] Chute 32.3

[0040] First driving member 33

[0041] Weighing mechanism 4

[0042] Weighing scale 41

[0043] Push cylinder 42

[0044] Transmission rack 43

[0045] Limiting chute 43.1

[0046] Limit rod 43.2

[0047] Transmission gear 44

[0048] Stirring mechanism 5

[0049] Second driving member 51

[0050] Stirring rack 52 DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "left side", "right side", "upper side", "lower side", "above", "below", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0052] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0053] In addition, in the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0054] The utility model provides a tobacco automatic weighing and mixing device, see Figure 1The mixing device includes a mixing box 1 and a plurality of feed boxes 2 connected to the mixing box 1. The top of the feed box 2 is provided with a feed port 21. The feed box 2 is provided with a feed limiting mechanism 3 suitable for controlling the amount of tobacco discharged and a weighing mechanism 4 suitable for weighing the tobacco from top to bottom. The bottom of the mixing box 1 is provided with a discharge port 11. The mixing box 1 is provided with a stirring mechanism 5 suitable for stirring the tobacco. In addition, the feed limiting mechanism 3, the weighing mechanism 4 and the stirring mechanism 5 can all be connected to the host computer through a circuit. Through the above-mentioned settings, the utility model realizes automatic discharge, automatic precise weighing and automatic stirring of tobacco, thereby improving the processing efficiency of the tobacco mixing process.

[0055] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 and Figure 2 The weighing mechanism 4 includes a weighing scale 41, a push cylinder 42, a transmission rack 43 and a transmission gear 44. The push cylinder 42 is arranged on the inner wall of the feed box 2 and the top of the push cylinder 42 is connected to the transmission rack 43, and the transmission rack 43 is meshed with the transmission gear 44. A transmission shaft is provided in the base of the weighing scale 41, and the transmission shaft is passed through the transmission gear 44 and connected to the transmission gear 44. For further information, see Figure 2 The top of the push cylinder 42 is connected to the transmission rack 43 through an adapter plate. When the top of the push cylinder 42 is pushed outward, the transmission rack 43 slides in the direction of pushing out following the top of the push cylinder 42. When the top of the push cylinder 42 is retracted inward, the transmission rack 43 slides in the direction of retraction following the top of the push cylinder 42. When the transmission rack 43 slides, it drives the transmission gear 44 to rotate with the center point of the transmission gear 44 itself as the axis. When the transmission gear 44 rotates, it drives the transmission shaft to rotate synchronously, thereby rotating the weighing scale 41. After the weighing scale 41 rotates, it will tilt, thereby dumping the tobacco accumulated on the scale of the weighing scale 41 into the mixing box 1. In addition, the push cylinder 42 can be an electric push cylinder, a hydraulic cylinder or a pneumatic cylinder, preferably a pneumatic cylinder.

[0056] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 and Figure 2, a limiting chute 43.1 is provided in the transmission rack 43. The weighing mechanism 4 also includes a limiting rod 43.2, one end of which is connected to the inner wall of the feed box 2, and the other end is passed through the limiting chute 43.1. The limiting rod 43.2 is suitable for limiting the stroke of the transmission rack 43. Furthermore, the slotting direction of the limiting chute 43.1 is consistent with the extension direction of the transmission rack 43. When the push cylinder 42 drives the transmission rack 43 to slide, the limiting chute 43.1 will slide synchronously with the transmission rack 43. When either end of the limiting chute 43.1 abuts against the limiting rod 43.2, the push cylinder 42 is resisted by the limiting rod 43.2 and cannot continue to push out or retract, thereby limiting the stroke of the transmission rack 43. In addition, the top of the limiting rod 43.2 is T-shaped to increase the limiting area and the resistance during limiting.

[0057] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 、 Figures 3 and 4 The material discharge limiting mechanism 3 includes a plurality of material guide strips 31 disposed below the material inlet 21, a movable plate 32 disposed below the material guide strips 31, and a first driving member 33 connected to the movable plate 32. Material discharge channels 31.1 are formed between adjacent material guide strips 31. The movable plate 32 is provided with a number of material guide grooves 32.1 that matches the number of material discharge channels 31.1. The first driving member 33 is adapted to drive the movable plate 32 to close or open the material discharge channels 31.1. When tobacco needs to be weighed, the first drive member 33 drives the movable plate 32 to move and align the guide trough 32.1 with the discharge channel 31.1, allowing the tobacco to fall into the weighing mechanism 4 in the order of discharge channel 31.1 → guide trough 32.1. When the weighing mechanism 4 has weighed the appropriate weight of tobacco (typically detected by a sensor), the first drive member 33 drives the movable plate 32 to move and move the guide trough 32.1 below the guide strip 31, so that the discharge channel 31.1 is closed by the remaining solid area of the movable plate 32. In addition, the size of the solid area between adjacent guide troughs 32.1 on the movable plate 32 should match the discharge channel 31.1 to ensure that the discharge channel 31.1 is completely closed. In addition, the first drive member 33 can be any one of a stepper motor, a DC reduction motor, or a servo motor, preferably a servo motor. Through this arrangement, automatic weighing of tobacco is achieved, while also enabling automatic discharge of tobacco into the mixing box.

[0058] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 、 Figures 3 to 5The movable plate 32 is provided with sliders 32.2 on both sides, and corresponding positions of the feed box 2 are provided with chute 32.3, and the sliders 32.2 and chute 32.3 are slidably connected. In addition, the sliders 32.2 and chute 32.3 are similar to the sliders 32.2 and chute 32.3 on both sides of the drawer, providing the necessary guidance and support for the movable plate 32 to move.

[0059] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 The stirring mechanism 5 includes a second driving member 51 and a stirring frame 52 connected to the drive shaft of the second driving member 51. Furthermore, the stirring frame 52 includes a stirring shaft and a bracket provided outside the stirring shaft. There is usually no special regulation on the shape of the bracket, but preferably, the width of the bracket can match the size of the mixing box 1 to increase the stirring range and strength so as to stir the tobacco more evenly. In addition, the bracket can be symmetrical with the stirring shaft as the center to increase the symmetry during stirring. Through the above arrangement, the automated stirring of the tobacco mixture is achieved, the mixing speed of multiple tobaccos is accelerated, and the subsequent processing of cigarettes is facilitated.

[0060] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 The bottom of the mixing box 1 is provided with supporting legs 12.

[0061] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 The feed box 2 is connected to the mixing box 1 through a material guide pipe 23.

[0062] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 and Figure 4 The feed port 21 is further provided with a material guiding inclined frame 22 , and the cross-sectional area of the lower half of the material guiding inclined frame 22 gradually decreases from top to bottom.

[0063] In the automatic tobacco weighing and mixing device provided by the utility model, refer to Figure 1 The discharge port 11 is provided with a bottom cover movably connected to the mixing box 1 , and the bottom cover is suitable for closing the discharge port 11 .

[0064] The utility model also provides a method of using the device for achieving a precise formula of leaf threshing and re-roasting, which is specifically described as follows:

[0065] 1) Add different types of tobacco into different types of feed boxes 2 respectively. The added tobacco will fall down along the guide inclined frame 22 and onto the weighing scale 41;

[0066] 2) When the weight of the tobacco on the weighing scale 41 reaches the set weight, the first driving member 33 drives the movable plate 32 to move, moving the guide trough 32.1 to the bottom of the guide strip 31 to close the discharge channel 31.1;

[0067] 3) The top of the push cylinder 42 pushes outward and drives the transmission rack 43 to slide synchronously. The transmission rack 43 drives the transmission gear 44 to rotate. The transmission gear 44 then drives the weighing scale 41 to rotate. After the weighing scale 41 rotates, it tilts, thereby dumping the tobacco accumulated on the scale of the weighing scale 41 into the mixing box 1;

[0068] 4) The second driving member 51 drives the stirring frame 52 to rotate, so as to stir and mix the tobacco entering the mixing box 1 , and the mixed tobacco is taken out through the discharge port 11 at the bottom of the mixing box 1 .

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A tobacco automatic weighing and mixing device, characterized by: It comprises a mixing box (1) and a plurality of feed boxes (2) each of which is in communication with the mixing box (1); The top of the feed box (2) is provided with a feed port (21), and the feed box (2) is provided with a feed limiting mechanism (3) suitable for controlling the amount of tobacco fed and a weighing mechanism (4) suitable for weighing the tobacco from top to bottom; the bottom of the mixing box (1) is provided with a discharge port (11), and the mixing box (1) is provided with a stirring mechanism (5) suitable for stirring the tobacco.

2. The automatic tobacco weighing and mixing device according to claim 1, characterized in that: The weighing mechanism (4) includes a weighing scale (41), a push cylinder (42), a transmission rack (43) and a transmission gear (44); The push cylinder (42) is arranged on the inner wall of the feed box (2) and the top of the push cylinder (42) is connected to the transmission rack (43), and the transmission rack (43) is meshed with the transmission gear (44); a transmission shaft is provided in the base of the weighing scale (41), and the transmission shaft is passed through the transmission gear (44) and connected to the transmission gear (44).

3. The automatic tobacco weighing and mixing device according to claim 2, characterized in that: A limiting chute (43.1) is provided in the transmission rack (43); the weighing mechanism (4) further comprises a limiting rod (43.2), one end of the limiting rod (43.2) is connected to the inner wall of the feed box (2), and the other end is passed through the limiting chute (43.1), and the limiting rod (43.2) is suitable for limiting the stroke of the transmission rack (43).

4. The automatic tobacco weighing and mixing device according to claim 1, characterized in that: The material discharge limiting mechanism (3) comprises a plurality of material guide strips (31) provided below the material feed port (21), a movable plate (32) provided below the material guide strips (31), and a first driving member (33) connected to the movable plate (32); A material discharge channel (31.1) is formed between adjacent material guide strips (31), and the movable plate (32) is provided with material guide grooves (32.1) whose number matches the material discharge channel (31.1). The first driving member (33) is suitable for driving the movable plate (32) to close or open the material discharge channel (31.1).

5. The automatic tobacco weighing and mixing device according to claim 4, characterized in that: Slide blocks (32.2) are provided on both sides of the movable plate (32), and a slide groove (32.3) is provided at a position corresponding to the movable plate (32), and the slide blocks (32.2) and the slide groove (32.3) are slidably connected.

6. The automatic tobacco weighing and mixing device according to claim 1, characterized in that: The stirring mechanism (5) comprises a second driving member (51) and a stirring frame (52) connected to a driving shaft of the second driving member (51).

7. The automatic tobacco weighing and mixing device according to claim 1, characterized in that: The bottom of the mixing box (1) is provided with supporting legs (12).

8. The automatic tobacco weighing and mixing device according to claim 1, characterized in that: The feed box (2) is connected to the mixing box (1) via a material guide pipe (23).

9. The automatic tobacco weighing and mixing device according to claim 1, characterized in that: A material guiding inclined frame (22) is also provided at the material feed port (21), and the cross-sectional area of the lower half of the material guiding inclined frame (22) gradually decreases from top to bottom.

10. The automatic tobacco weighing and mixing device according to claim 1, characterized in that: The discharge port (11) is provided with a bottom cover movably connected to the mixing box (1), and the bottom cover is suitable for closing the discharge port (11).

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