A flexible feeding device for a tobacco leaf loosening and conditioning machine

Abstract

A flexible feeding device for a tobacco leaf loosening and tempering machine, belonging to the technical field of tobacco production, includes a floor bracket. A front cross brace is arranged at the front end of the floor bracket, and a rear cross brace is arranged at the rear end of the floor bracket. The height of the front cross brace is lower than that of the rear cross brace. A set of connecting guide rails is arranged between the front cross brace and the rear cross brace, and both ends of the connecting guide rails are respectively connected to the front cross brace and the rear cross brace. An automatic return trolley is arranged on the connecting guide rails, and a flexible tobacco block attitude adjustment arm is arranged on the bottom side of the automatic return trolley. The flexible tobacco block attitude adjustment arm includes a fixed bracket. The top end of the fixed bracket is connected to the bottom side of the automatic return trolley, and the bottom end of the fixed bracket is hinged with a stop block bracket through a damping rotating shaft. The flexible feeding device for the tobacco leaf loosening and tempering machine of the present invention has reasonable design, ingenious structure, convenient operation, can ensure the same sliding attitude of the tobacco blocks, effectively reduce the breakage of the tobacco blocks, reduce the falling impact force and noise of the tobacco blocks, has high practicability and is suitable for popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco production, and particularly relates to a flexible feeding device for a tobacco leaf loosening and conditioning machine. Background Art

[0002] At present, the drum-type leaf conditioning machine is one of the main devices in the direct conditioning system of the tobacco processing production line. It is a special device for loosening and conditioning the sheet-shaped tobacco blocks after threshing and redrying, pre-pressing and packing, and unpacking and slicing. It provides process conditions for adding materials to the tobacco leaves. While the tobacco leaves are being rotated, conveyed by the drum and the tobacco blocks are loosened, the moisture content and temperature of the tobacco leaves are increased, so as to meet the process requirements of tobacco processing, that is, tobacco leaves with a moisture content of 17-19%.

[0003] A tobacco leaf loosening and conditioning device is disclosed in the prior art, which includes a conditioning drum, a water tank, an inlet vibrating trough, an outlet vibrating trough, an electronic belt scale, a moisture detector, a water adding system at the inlet of the conditioning drum, a water adding system at the outlet of the conditioning drum, and a programmable logic controller. The water adding system at the inlet of the conditioning drum includes a first dual-medium atomizing nozzle and a first gear pump. The water adding system at the outlet of the conditioning drum includes a second dual-medium atomizing nozzle and a second gear pump. The above-mentioned tobacco leaf loosening and conditioning device effectively reduces the moisture fluctuation of tobacco leaves, improves the stability of the moisture content of tobacco leaf materials through preliminary adjustment and rapid feedback adjustment of the moisture content of tobacco leaf materials, and improves the stability of the internal quality of subsequent cigarette products.

[0004] Although the above prior art can reduce the moisture fluctuation of tobacco leaves and improve the stability of the moisture content of tobacco leaf materials, there are still the following deficiencies in actual use: Since the commissioning and production of the loosening and conditioning process, there are two phenomena that cause a large amount of breakage at the feeding end of the loosening and conditioning: 1. The falling postures of the tobacco blocks at the interface between the belt scale and the high-frequency vibrating trough are inconsistent, that is, the breakage is small when the tobacco blocks slide downwards, and the breakage is large when they fall forward; 2. The falling speed of the tobacco blocks when entering the drum is fast, resulting in a large impact and loud noise. Summary of the Invention

[0005] The purpose of the present invention is to overcome the technical defects such as inconsistent falling postures of tobacco blocks and large noise existing in the prior art, and provide a flexible feeding device for a tobacco leaf loosening and conditioning machine, which is reasonably designed, ingeniously structured, easy to operate, can ensure the consistent sliding postures of tobacco blocks, effectively reduce the breakage of tobacco blocks, reduce the falling impact force and noise of tobacco blocks, and has high practicability and is suitable for popularization.

[0006] The present invention is realized by the following technical solutions: A flexible feeding device for a tobacco leaf loosening and tempering machine, comprising a floor bracket. A front cross brace is provided at the front end of the floor bracket, and a rear cross brace is provided at the rear end of the floor bracket. The height of the front cross brace is lower than that of the rear cross brace. A set of connecting guide rails is arranged between the front cross brace and the rear cross brace, and both ends of the connecting guide rails are respectively connected to the front cross brace and the rear cross brace. An automatic return trolley is arranged on the connecting guide rails, and a flexible tobacco block attitude adjustment arm is arranged on the bottom side of the automatic return trolley. The flexible tobacco block attitude adjustment arm comprises a fixed bracket. The top end of the fixed bracket is connected to the bottom side of the automatic return trolley, and the bottom end of the fixed bracket is hinged with a stop bracket through a damping rotating shaft. A stop is connected to the stop bracket, and under the action of the damping rotating shaft, the stop remains in a hanging state.

[0007] When the tobacco block is conveyed by the belt scale to its discharge end, the upper part of the front end face of the tobacco block will first contact the stop of the flexible tobacco block attitude adjustment arm. Through the weight of the automatic return trolley and the flexible tobacco block attitude adjustment arm and in cooperation with the inclination angle of the connecting guide rails, the stop applies a reverse thrust to the upper end of the tobacco block. At this time, the stop will rotate a certain angle under the action of the damping rotating shaft and buffer the tobacco block. At the same time, the automatic return trolley will also slide backward for a certain distance. Through the above process, the falling attitude adjustment of the tobacco block can be realized. After the adjustment is completed, the automatic return trolley together with the flexible tobacco block attitude adjustment arm will automatically reset under the action of its own weight and the inclination angle of the connecting guide rails, waiting for the next cycle. It can be seen that under the action of the above reverse thrust, the tobacco block is kept in a backward inclined attitude when at the discharge end of the belt scale, so as to ensure that the conveying state of the tobacco block from the belt scale to the high-frequency vibrating trough at the inlet of the loosening and tempering drum is a sliding state, rather than falling forward, so as to achieve the effects of reducing tobacco leaf breakage and reducing noise.

[0008] A further improvement of the present invention is that the automatic return trolley comprises a vehicle frame. Wheel axles are respectively arranged at both ends of the vehicle frame, and guide wheels are arranged at both ends of the wheel axles. The guide wheels are arranged on the connecting guide rails so that the automatic return trolley can move on the connecting guide rails.

[0009] A further improvement of the present invention is that a derailment preventer is connected to the rear of the automatic return trolley. The derailment preventer comprises two sleeves, and the two sleeves are respectively movably sleeved on the connecting guide rails. The two sleeves are connected into one body through a middle beam, and a connecting frame is arranged on the middle beam. The connecting frame is connected to the rear of the automatic return trolley. The derailment preventer can prevent the self-return trolley from derailing.

[0010] A further improvement of the present invention is that an installation bracket is arranged on the front column of the floor bracket, and the installation bracket is connected to the end of the front cross brace; an adjustment bracket is arranged on the rear column of the floor bracket, and the adjustment bracket is connected to the end of the rear cross brace.

[0011] A further improvement of the present invention is that the adjusting bracket includes a support frame which is fixed to the rear column of the floor bracket. A threaded rod is screwed on the top side of the support frame and penetrates through the support frame vertically. Two corresponding nuts are screwed on the threaded rod, and the position of the threaded rod can be fixed by the two nuts. A fixing frame is provided at the top end of the threaded rod, and the fixing frame is connected to the end of the rear cross brace. The staff can not only fix the position of the threaded rod through the nuts, but also adjust the height of the rear cross brace, which is very convenient to operate.

[0012] A further improvement of the present invention is that the height of the front cross brace is 100 mm lower than that of the rear cross brace. The above dimensions are more suitable for the actual assembly requirements.

[0013] A further improvement of the present invention is that two connecting guide rails are arranged on both sides of the center lines of the front cross brace and the rear cross brace, and the distance between the two connecting guide rails is 680 mm. The above dimensions are more suitable for the actual assembly requirements.

[0014] A further improvement of the present invention is that limiting baffles are respectively arranged at both ends of the connecting guide rail. After installing the baffles, the sliding stroke of the automatic return trolley can be well restricted under the action of the lower baffle, preventing it from sliding out of the connecting guide rail.

[0015] The beneficial effects of the present invention are as follows: Compared with the prior art, the flexible cigarette block attitude adjustment arm of the present device can correct the falling attitude of cigarette blocks with a thickness of 10 mm - 110 mm, enabling the cigarette blocks to slide down orderly, avoiding breakage caused by the impact of the cigarette blocks falling forward and flipping, and the orderly sliding-down cigarette blocks generate less impact force and less noise when entering the loose tobacco re-drying machine, thus providing a better working environment for the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of a specific embodiment of the present invention.

[0018] Figure 2 It is a schematic connection structure diagram among the connecting guide rail, the automatic return trolley, the flexible cigarette block attitude adjustment arm, and the anti-derailment device in a specific embodiment of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the automatic return trolley in a specific embodiment of the present invention.

[0020] Figure 4It is a schematic structural diagram of the flexible attitude adjustment arm according to a specific embodiment of the present invention.

[0021] Figure 5 It is a schematic structural diagram of the derailment preventer according to a specific embodiment of the present invention.

[0022] Figure 6 It is a schematic structural diagram of the specific adjusting bracket of the present invention.

[0023] Figure 7 It is a diagram of the usage state according to a specific embodiment of the present invention.

[0024] 1. Floor bracket; 2. Front cross brace; 3. Rear cross brace; 4. Connecting guide rail; 5. Automatic return trolley; 501. Frame; 502. Wheel axle; 503. Guide rail wheel; 6. Flexible cigarette block attitude adjustment arm; 601. Fixed bracket; 602. Damping rotating shaft; 603. Stopper bracket; 604. Stopper; 7. Derailment preventer; 701. Ferrule; 702. Central beam; 703. Connecting frame; 8. Mounting bracket; 9. Adjusting bracket; 901. Support frame; 902. Threaded rod; 903. Nut; 904. Fixed frame; 10. Limit baffle; 11. Belt scale; 12. High-frequency vibrating trough. Detailed implementation manners

[0025] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the specific embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent.

[0026] Now refer to Figure 1 — Figure 7, described with specific embodiments as follows: A flexible feeding device for a tobacco leaf loosening and tempering machine according to the present invention includes a floor bracket 1. A front cross brace 2 is provided at the front end of the floor bracket 1, and a rear cross brace 3 is provided at the rear end of the floor bracket 1. The height of the front cross brace 2 is 100 mm lower than that of the rear cross brace 3; A set of connecting guide rails 4 is provided between the front cross brace 2 and the rear cross brace 3, and both ends of the connecting guide rails 4 are respectively connected to the front cross brace 2 and the rear cross brace 3; The two connecting guide rails 4 are arranged on both sides of the center line of the front cross brace 2 and the rear cross brace 3, and the distance between the two connecting guide rails 4 is 680 mm; An automatic return trolley 5 is arranged on the connecting guide rails 4, and a limit baffle 10 for restricting the travel of the automatic return trolley 5 is also arranged at the end of the connecting guide rails 4. A flexible tobacco block attitude adjustment arm 6 is arranged on the bottom side of the automatic return trolley 5; The flexible tobacco block attitude adjustment arm 6 includes a fixed bracket 601. The top end of the fixed bracket 601 is connected to the bottom side of the automatic return trolley 5. The bottom end of the fixed bracket 601 is hinged with a baffle bracket 603 through a damping rotating shaft 602. The baffle bracket 603 is connected with a baffle 604. Under the action of the damping rotating shaft 602, the baffle 604 remains in a hanging state.

[0027] The working principle of the present invention: The staff fixes the columns of the floor bracket 1 to the ground by means of bolts to fix the position of the device. The front end of the floor bracket 1 corresponds to the discharge end of the belt scale 11, and the rear end of the floor bracket 1 corresponds to the inlet of the loosening and tempering machine. When the tobacco block is conveyed by the belt scale 11 to its discharge end, since the front cross brace 2 and the rear cross brace 3 are in the form of lower in the front and higher in the rear, the connecting guide rails 4 and the horizontal ground will form an angle. The automatic return trolley 5 will automatically return to the lower part (i.e., the original position) of the connecting guide rails 4 under the action of its own gravity, and the flexible tobacco block attitude adjustment arm 6 will also approach the discharge end of the belt scale 11 under the action of the automatic return trolley 5. During the process of the tobacco block being conveyed from the belt scale 11 to the loosening and tempering machine, the upper part of the front end face of the tobacco block will first contact the baffle 604 of the flexible tobacco block attitude adjustment arm 6. Through the weight of the automatic return trolley 5 and the flexible tobacco block attitude adjustment arm 6 and the cooperation with the inclination angle of the connecting guide rails 4, the baffle 604 exerts a reverse thrust on the upper end of the tobacco block. At this time, the baffle 604 will rotate a certain angle under the action of the damping rotating shaft 602 and buffer the tobacco block. At the same time, the automatic return trolley 5 will also slide backward for a certain distance. Through the above process, the falling attitude adjustment of the tobacco block can be realized. After the adjustment is completed, the automatic return trolley 5 together with the flexible tobacco block attitude adjustment arm 6 will automatically reset under the action of its own weight and the inclination angle of the connecting guide rails 4 to wait for the next cycle. It can be seen that under the action of the above reverse thrust, the tobacco block is kept in a backward inclined attitude when at the discharge end of the belt scale 11, so as to ensure that the conveying state of the tobacco block from the belt scale 11 to the high-frequency vibration trough 12 at the inlet of the loosening and tempering drum is a sliding state, rather than falling forward, so as to achieve the effects of reducing tobacco leaf breakage and reducing noise.

[0028] In one embodiment, the automatic return trolley 5 includes a frame 501. Wheel axles 502 are respectively arranged at both ends of the frame 501. Guide wheels 503 are arranged at both ends of the wheel axles 502. The guide wheels 503 are arranged on the connecting guide rail 4 so that the automatic return trolley 5 can move on the connecting guide rail 4. The structure of the above-mentioned automatic return trolley 5 is simple, convenient for assembly, and can reduce production costs.

[0029] In one embodiment, a derailment preventer 7 is connected to the rear of the automatic return trolley 5. The derailment preventer 7 includes two clamping sleeves 701. The two clamping sleeves 701 are respectively movably sleeved on the connecting guide rail 4. The two clamping sleeves 701 are connected into one body through a middle beam 702. A connecting frame 703 is arranged on the middle beam 702. The connecting frame 703 is connected to the rear of the automatic return trolley 5. The derailment preventer 7 can ensure the normal running of the automatic return trolley 5 and prevent the automatic return trolley 5 from derailing.

[0030] In one embodiment, a mounting bracket 8 is arranged on the front column of the floor bracket 1. The mounting bracket 8 is bolted to the end of the front cross brace 2; an adjusting bracket 9 is arranged on the rear column of the floor bracket 1. The adjusting bracket 9 is connected to the end of the rear cross brace 3. The above structure can reduce the assembly difficulty of the front cross brace 2 and the rear cross brace 3 and save production costs.

[0031] In one embodiment, the adjusting bracket 9 includes a support frame 901. The support frame 901 is fixed on the rear column of the floor bracket 1. A threaded rod 902 is screwed on the top side of the support frame 901. The threaded rod 902 penetrates through the support frame 901 up and down; two corresponding nuts 903 are screwed on the threaded rod 902. The position of the threaded rod 902 can be fixed by the two nuts 903; a fixing frame 904 is arranged at the top end of the threaded rod 902. The fixing frame 904 is bolted to the end of the rear cross brace 3. Workers can use the adjusting bracket 9 to adjust the height difference between the front cross brace 2 and the rear cross brace 3 at any time according to the actual situation, which is very practical.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0033] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flexible feeding device for a tobacco leaf loosening and tempering machine, comprising a floor bracket (1), characterized in that: A front cross brace (2) is provided at the front end of the floor bracket (1), and a rear cross brace (3) is provided at the rear end of the floor bracket (1). The height of the front cross brace (2) is lower than that of the rear cross brace (3); a set of connecting guide rails (4) is provided between the front cross brace (2) and the rear cross brace (3), and both ends of the connecting guide rails (4) are respectively connected to the front cross brace (2) and the rear cross brace (3); an automatic return trolley (5) is provided on the connecting guide rails (4), and a flexible cigarette block attitude adjustment arm (6) is provided on the bottom side of the automatic return trolley (5); The flexible cigarette block attitude adjustment arm (6) includes a fixed bracket (601). The top end of the fixed bracket (601) is connected to the bottom side of the automatic return trolley (5). The bottom end of the fixed bracket (601) is hinged with a stop bracket (603) through a damping rotating shaft (602). The stop bracket (603) is connected with a stop block (604). Under the action of the damping rotating shaft (602), the stop block (604) keeps a drooping state; The automatic return trolley (5) includes a vehicle frame (501). Wheel axles (502) are respectively provided at both ends of the vehicle frame (501). Guide wheels (503) are provided at both ends of the wheel axles (502). The guide wheels (503) are arranged on the connecting guide rails (4) so that the automatic return trolley (5) can move on the connecting guide rails (4); An anti-derailer (7) is connected to the rear of the automatic return trolley (5). The anti-derailer (7) includes two clamping sleeves (701). The two clamping sleeves (701) are respectively movably sleeved on the connecting guide rails (4). The two clamping sleeves (701) are connected into one body through a middle beam (702). A connecting frame (703) is provided on the middle beam (702). The connecting frame (703) is connected to the rear of the automatic return trolley (5); The height of the front cross brace (2) is 100 mm lower than that of the rear cross brace (3); The two connecting guide rails (4) are arranged on both sides of the center lines of the front cross brace (2) and the rear cross brace (3), and the distance between the two connecting guide rails (4) is 680 mm; Limit baffles (10) are respectively provided at both ends of the connecting guide rails (4).

2. The flexible feeding device of a tobacco leaf loosening and tempering machine according to claim 1, wherein: An installation bracket (8) is provided on the front column of the floor bracket (1). The installation bracket (8) is connected to the end of the front cross brace (2); An adjustment bracket (9) is provided on the rear column of the floor bracket (1). The adjustment bracket (9) is connected to the end of the rear cross brace (3).

3. The flexible feeding device of a tobacco leaf loosening and conditioning machine according to claim 2, characterized in that: The adjustment bracket (9) includes a support frame (901). The support frame (901) is fixed on the rear column of the floor bracket (1). A threaded rod (902) is screwed on the top side of the support frame (901). The threaded rod (902) penetrates through the support frame (901) up and down; Two nuts (903) corresponding up and down are screwed on the threaded rod (902). The position of the threaded rod (902) can be fixed through the two nuts (903); A fixed frame (904) is provided at the top end of the threaded rod (902). The fixed frame (904) is connected to the end of the rear cross brace (3).

Images