Tobacco leaf vibration screening machine

Abstract

The utility model discloses a tobacco leaf vibration screening machine, which belongs to the technical field of tobacco leaf screening, and comprises a vibration feeding device and a vibration screening device, the output end of the vibration feeding device is connected with the input end of the vibration screening device; the vibration feeding device comprises a vibration frame, a fixed feeding hopper, a vibration hopper, a pushing mechanism, an output port and a vibration spring, the fixed feeding hopper is fixedly installed at the top of the vibration frame, the vibration hopper is installed in the vibration frame through the vibration spring, and the pushing mechanism is installed on the side wall of the vibration hopper; one side of the vibrating hopper is provided with an output port, and the vibrating hopper is in butt joint with the input end of the vibrating screening device through the output port. According to the utility model, silt and impurities can be prevented from entering the vibration screening device, the material stirring action can be accurately controlled, tobacco leaves are accurately pushed to a designated position in the screening process, and efficient screening and filtering are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco leaf screening, in particular to a tobacco leaf vibration screening machine. Background Art

[0002] The tobacco leaf vibrating screening machine is a device used for tobacco leaf processing, usually used in the primary processing and processing of tobacco leaves. This machine uses the principle of vibration screening to screen and classify tobacco leaves according to size, shape and other characteristics. The tobacco leaf vibrating screening machine is usually composed of a vibrator, a screen surface, a bracket and other components. When working, the vibrator generates a vibration force, causing the tobacco leaves to vibrate on the screen surface, thereby achieving the screening and separation of tobacco leaves. By adjusting the vibration frequency and amplitude, accurate screening of tobacco leaves can be achieved, improving the efficiency and quality of tobacco leaf processing.

[0003] Although tobacco leaf vibrating screening machines play an important role in the tobacco leaf processing industry, there are also some problems and disadvantages. For example, tobacco leaf vibrating screening machines may not be able to fully achieve the ideal separation effect during the screening process, especially for tobacco leaves with irregular shapes or similar sizes, there may be mixing or leakage. For some tobacco leaf processing needs that require higher screening accuracy, the existing vibrating screening machines may not meet the requirements. In particular, it is easy to put tobacco leaves containing impurities such as mud and sand directly into the vibrating screening machine, which will lead to a series of adverse effects. When impurities such as mud and sand are mixed into the tobacco leaves and enter the vibrating screening machine, these hard impurities may cause the tobacco leaves to be hit and worn during the screening process, resulting in damage and fragmentation of the tobacco leaves. If impurities such as mud and sand remain in the tobacco leaves for a long time and cannot be thoroughly cleaned, the quality of the tobacco leaves may decline, affecting the taste, combustion performance and market competitiveness of the tobacco leaves.

[0004] In summary, if the existing tobacco leaf vibration screening machine cannot effectively pre-treat and sort tobacco leaves containing impurities such as mud and sand, it will lead to problems such as tobacco leaf breakage, reduced screening effect and reduced tobacco leaf quality. Therefore, for this problem, the equipment needs to be further optimized to ensure the smooth progress of the tobacco leaf processing process and the stable improvement of product quality. Utility Model Content

[0005] In view of the above, the utility model aims to provide a tobacco leaf vibrating screening machine to solve the problems of mixing or missing screening existing in existing vibrating screening machines, as well as the problem of inability to perform effective pretreatment and sorting when processing tobacco leaves containing impurities such as mud and sand, thereby causing tobacco leaf breakage, reduced screening effect and reduced tobacco leaf quality.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The utility model provides a tobacco leaf vibration screening machine, comprising a vibration feeding device and a vibration screening device, wherein the output end of the vibration feeding device is connected to the input end of the vibration screening device; the vibration feeding device comprises a vibration frame, a fixed feeding hopper, a vibration hopper, a pushing mechanism, an output port and a vibration spring, the fixed feeding hopper is fixedly installed on the top of the vibration frame, the vibration hopper is installed inside the vibration frame through the vibration spring, and the pushing mechanism is installed on the side wall of the vibration hopper; an output port is provided on one side of the vibration hopper, and the vibration hopper is connected to the input end of the vibration screening device through the output port.

[0008] Preferably, the vibrating hopper is a rectangular structure, an upper port of which is located below the fixed feeding hopper, and a filter layer is provided at the bottom.

[0009] Preferably, the vibrating feeding device further comprises a bracket arranged at the bottom, and the vibrating frame is fixedly installed above the bracket.

[0010] Preferably, an ash hopper is installed inside the bracket, and the filter layer of the vibration hopper is located above the ash hopper.

[0011] Preferably, the pushing mechanism includes a push rod assembly, a telescopic rod, an adaptive spring, an adaptive pressure block, a slider, a flip shaft, a flip frame, a material removal plate and an adaptive shaft; a through hole is provided on one side wall of the vibration bucket, and a fixing seat is fixed at the opening of the through hole, and the push rod assembly is mounted on the fixing seat.

[0012] Preferably, the slider is hinged to the flip frame through the flip axis, the material stripping plate is fixed at the lower end of the flip frame, a rectangular groove is arranged on the rear side of the flip frame, the adaptive pressure block is matchedly mounted in the rectangular groove, the adaptive axis is mounted on the adaptive pressure block, the telescopic rod is arranged at the front end of the push rod assembly, the end of the telescopic rod is hinged to the adaptive axis, the adaptive spring is mounted in the rectangular groove, and the adaptive spring is supported below the adaptive pressure block.

[0013] Preferably, the push rod assembly is an electric push rod or a pneumatic cylinder.

[0014] Preferably, track grooves are provided on the left and right side walls in the vibration bucket, and the sliding blocks are mounted in the track grooves.

[0015] Preferably, a friction pad is provided on the side of the sliding block.

[0016] Preferably, the vibrating screening device comprises a head end frame, a tail end frame, a screening frame and a driving mechanism, the screening frame is provided with an upper screen and a lower screen, and the driving mechanism is installed in the area between the head end frame and the tail end frame.

[0017] The tobacco leaf vibration screening machine of the utility model has the following technical effects:

[0018] The vibrating feeding device comprises a vibrating frame, a vibrating bucket, a pushing mechanism and a vibrating spring, and a filter layer is arranged at the bottom of the vibrating bucket. Through the arrangement of the vibrating feeding device and its components, a screening process for sediment and debris is firstly arranged, and then multi-stage filtration is performed on the tobacco leaves to prevent sediment impurities from entering the vibrating screening device, thereby improving the purity of the filtration of the vibrating screening device, realizing efficient screening and filtration, efficiently removing impurities and debris, and improving product quality.

[0019] On the other hand, the pushing mechanism includes a push rod assembly, a telescopic rod, an adaptive spring, an adaptive pressure block, a slider, a flip shaft, a flip frame, a material-diverting plate, and an adaptive shaft; the structural design of the pushing mechanism enables the movement trajectory of tobacco leaves in the tobacco leaf vibration screening machine to be precisely controlled, realizing an automated tobacco leaf processing process and improving production efficiency. The pushing mechanism uses components such as adaptive springs and sliders to ensure the stability and reliability of the pushing process, reduce the failure rate, and increase the service life of the equipment. The pushing mechanism can accurately control the movement of the material-diverting plate through the cooperation of the push rod assembly, telescopic rod, adaptive spring, and other components to ensure that the tobacco leaves are accurately pushed to the specified position during the screening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described below in conjunction with the accompanying drawings, in which:

[0021] Figure 1 A side view of a tobacco leaf vibrating screening machine provided by an embodiment of the utility model;

[0022] Figure 2 yes Figure 1 An enlarged structural diagram of the vibrating feeding device;

[0023] Figure 3 yes Figure 2 The structural diagram of the push mechanism;

[0024] Figure 4 yes Figure 3 Schematic diagram of the return state of the push mechanism.

[0025] Description of reference numerals:

[0026] 1. Vibrating feeding device; 2. Vibrating screening device; 3. Bracket; 4. Vibrating frame; 5. Fixed feeding hopper; 6. Vibrating hopper; 7. Pushing mechanism; 8. Output port; 9. Vibrating spring; 10. Ash hopper; 11. Track groove; 70. Fixed seat; 71. Push rod assembly; 72. Telescopic rod; 73. Adaptive spring; 74. Adaptive pressure block; 75. Sliding block; 76. Turning shaft; 77. Turning frame; 78. Diverting plate; 79. Adaptive shaft. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.

[0028] The tobacco leaf vibration screening machine in the prior art cannot fully achieve the ideal separation effect during the screening process, especially for tobacco leaves of irregular shape or similar size, there are cases of mixing or missing screening. For some tobacco leaf processing needs that require higher screening accuracy, the existing vibration screening machines cannot meet the requirements. The utility model is provided with components such as a vibration feeding device and its pushing mechanism, which can effectively pre-treat and sort tobacco leaves containing impurities such as mud and sand, thereby ensuring the smooth progress of the tobacco leaf processing process and the stable improvement of product quality.

[0029] The utility model proposes an embodiment of a tobacco leaf vibration screening machine, specifically, as follows Figure 1 As shown, it includes a vibrating feeding device 1 and a vibrating screening device 2, and the output end of the vibrating feeding device 1 is connected to the input end of the vibrating screening device 2. The enlarged structure of the vibrating feeding device 1 is as shown in FIG. Figure 2 As shown, the vibrating feeding device 1 includes a vibrating frame 4, a fixed feeding hopper 5, a vibrating hopper 6, a pushing mechanism 7, an output port 8 and a vibrating spring 9. The fixed feeding hopper 5 is fixedly installed on the top of the vibrating frame 4, the vibrating hopper 6 is installed inside the vibrating frame 4 through the vibrating spring 9, and the pushing mechanism 7 is installed on the side wall of the vibrating hopper 6; an output port 8 is provided on one side of the vibrating hopper 6, and the vibrating hopper 6 is connected to the input end of the vibrating screening device 2 through the output port 8. Among them, the fixed feeding hopper 5 is conical; and a plurality of vibrating springs 9 are configured and arranged inside the vibrating frame 4 in a surrounding manner.

[0030] Specifically, a pushing mechanism 7 is installed on the right side wall of the vibration hopper 6, and the pushing mechanism 7 is used to push the tobacco leaves that have not been filtered out in the vibration hopper 6, and push the tobacco leaves to the upper side of the upper screen at the input end of the vibration screening device 2 through the output port 8.

[0031] In one embodiment of the present invention, the vibrating hopper 6 is a rectangular structure, an upper port of which is located below the fixed feeding hopper 5, and a filter layer is provided at the bottom thereof.

[0032] In an embodiment of the present invention, the vibrating feeding device 1 further comprises a bracket 3 arranged at the bottom, and a vibrating frame 4 is fixedly installed above the bracket 3 .

[0033] In an embodiment of the present invention, an ash hopper 10 is installed inside the bracket 3 , and the filter layer of the vibration hopper 6 is located above the ash hopper 10 .

[0034] In one embodiment of the utility model, the pushing mechanism 7 includes a push rod assembly 71, a telescopic rod 72, an adaptive spring 73, an adaptive pressure block 74, a slider 75, a flip shaft 76, a flip frame 77, a material removal plate 78 and an adaptive shaft 79; a through hole is set in one side wall of the vibration bucket 6, and a fixing seat 70 is fixed at the opening of the through hole, and a push rod assembly 71 is mounted on the fixing seat 70.

[0035] In one embodiment of the utility model, the slider 75 is hinged to the flip frame 77 through the flip shaft 76, and a material removal plate 78 is fixed at the lower end of the flip frame 77. A rectangular groove is provided on the rear side of the flip frame 77, and an adaptive pressure block 74 is matched and set in the rectangular groove. An adaptive shaft 79 is installed on the adaptive pressure block 74. A telescopic rod 72 is provided at the front end of the push rod assembly 71, and the end of the telescopic rod 72 is hinged to the adaptive shaft 79. An adaptive spring 73 is set in the rectangular groove, and the adaptive spring 73 is supported below the adaptive pressure block 74.

[0036] In one embodiment of the present invention, the push rod assembly 71 is an electric push rod or a pneumatic cylinder.

[0037] In one embodiment of the utility model, a track groove 11 is provided on the left and right side walls of the vibration bucket 6, a slider 75 is mounted in the track groove 11, and a friction pad is provided on the side of the slider 75, so that the friction pad provides sliding resistance when the slider 75 slides in the track groove 11.

[0038] Specifically, when the telescopic rod 72 moves forward, it can push the flip frame 77 to move forward, thereby driving the slider 75 to slide forward along the track groove 11. Figure 3 As shown, the material-diverting plate 78 is in an upright state, and can push the tobacco leaves at the bottom of the vibrating hopper 6 to the input end of the vibrating screening device 2. When the telescopic rod 72 moves backward, it can pull the upper end of the flip frame 77 to move backward. At this time, the slider 75 is located in the track groove 11 and has sliding resistance, so that the flip frame 77 first flips upward along the flip axis 76. After flipping, the material-diverting plate 78 rises upward. Therefore, during the return process of the material-diverting plate 78, the material-diverting plate 78 will not push the tobacco leaves at the bottom of the vibrating hopper 6 backward. Specifically, as shown in FIG. Figure 4 As shown, Figure 4 It is a schematic diagram of the return state of the pushing mechanism 7.

[0039] In one embodiment of the utility model, the vibrating screening device 2 includes a head end frame, a tail end frame, a screening frame and a driving mechanism, an upper screen and a lower screen are arranged in the screening frame, and a driving mechanism is installed in the area between the head end frame and the tail end frame. Buffer springs are installed on the head end frame and the tail end frame, and the head end and tail end outer side walls of the screening frame are provided with supports, and each support is respectively matched and installed on the upper side of the corresponding buffer spring. A turntable is installed in the middle of the outer side wall of the screening frame, and an eccentric wheel is installed at the eccentric position of the turntable. The output shaft of the driving mechanism is equipped with an eccentric wheel through a bearing assembly to drive the screening frame to vibrate. The unfiltered tobacco leaves are pushed to the upper screen of the vibrating screening device 2 to achieve primary filtration; when the tobacco leaves are vibrated downward on the upper screen of the vibrating screening device 2, the broken materials will enter the lower screen to achieve secondary filtration.

[0040] The head end of the vibrating screening device 2 is fixedly docked with the vibrating bucket 6, and the output port 8 is located on the upper side of the upper screen of the vibrating screening device 2. Thus, during the vibration of the vibrating screening device 2, the vibrating bucket 6 can be vibrated together. On the other hand, an independent vibration mechanism can also be installed for the vibrating bucket 6.

[0041] During use, the tobacco leaf vibration screening machine of the utility model puts the tobacco leaves to be screened into the fixed feeding hopper 5, starts the driving mechanism of the vibration screening device 2, and makes the vibration screening device 2 start to vibrate, ensuring that the vibration frequency and amplitude of the vibration screening device 2 meet the screening requirements. The tobacco leaves enter the vibration hopper 6 through the vibration feeding device 1, and firstly perform primary filtration. The soil and other debris are discharged through the filter layer at the bottom and enter the ash hopper 10 to achieve primary filtration. Then the pushing mechanism 7 starts to work, pushing the unfiltered tobacco leaves to the upper screen of the vibration screening device 2 to achieve primary filtration. Since the vibration screening device 2 is placed at an angle, when the tobacco leaves are vibrated downward on the upper screen of the vibration screening device 2, the debris will enter the lower screen and continue the secondary filtration. Monitor the flow of tobacco leaves during the screening process, adjust the vibration frequency and amplitude of the vibration screening device 2 in time, and ensure a good screening effect. By monitoring the working state of the pushing mechanism 7, it is ensured that the tobacco leaves can be smoothly pushed to the designated position. After the screening is completed, stop the tobacco leaf vibrating screening machine, tidy up the interior and related parts of the tobacco leaf vibrating screening machine, ensure the equipment is clean, and perform daily maintenance work.

[0042] The tobacco leaf vibration screening machine provided by the utility model can ensure uniform feeding, avoid tobacco leaf blockage or overload caused by excessive feeding, prevent mud and sand impurities from entering the vibration screening device 2, improve the purity of the vibration screening device filtration, realize efficient and stable tobacco leaf screening and filtration process, and improve production efficiency and product quality.

[0043] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings, but the above is only a preferred embodiment of the present invention. It should be noted that the technical features involved in the above embodiments and their preferred methods can be reasonably combined and matched into a variety of equivalent schemes by those skilled in the art without departing from or changing the design concept and technical effects of the present invention; therefore, the present invention is not limited to the scope of implementation as shown in the drawings, and all changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which still do not exceed the spirit covered by the specification and drawings, should be within the protection scope of the present invention.

Claims

1. A tobacco leaf vibrating screening machine, characterized in that: The invention comprises a vibrating feeding device (1) and a vibrating screening device (2), wherein the output end of the vibrating feeding device (1) is connected to the input end of the vibrating screening device (2); the vibrating feeding device (1) comprises a vibrating frame (4), a fixed feeding hopper (5), a vibrating hopper (6), a pushing mechanism (7), an output port (8) and a vibrating spring (9); the fixed feeding hopper (5) is fixedly mounted on the top of the vibrating frame (4); the vibrating hopper (6) is mounted inside the vibrating frame (4) via the vibrating spring (9); the pushing mechanism (7) is mounted on the side wall of the vibrating hopper (6); an output port (8) is arranged on one side of the vibrating hopper (6); and the vibrating hopper (6) is connected to the input end of the vibrating screening device (2) via the output port (8).

2. The tobacco leaf vibrating screening machine according to claim 1, characterized in that: The vibrating hopper (6) is a rectangular structure, the upper port of which is located below the fixed feeding hopper (5), and a filter layer is arranged at the bottom.

3. The tobacco leaf vibrating screening machine according to claim 1, characterized in that: The vibrating feeding device (1) further comprises a bracket (3) arranged at the bottom, and the vibrating frame (4) is fixedly installed above the bracket (3).

4. The tobacco leaf vibrating screening machine according to claim 3, characterized in that: An ash hopper (10) is installed inside the bracket (3), and a filter layer is provided at the bottom of the vibration hopper (6), and the filter layer is located above the ash hopper (10).

5. The tobacco leaf vibrating screening machine according to claim 1, characterized in that: The pushing mechanism (7) comprises a push rod assembly (71), a telescopic rod (72), an adaptive spring (73), an adaptive pressure block (74), a slider (75), a flip shaft (76), a flip frame (77), a material-pickup plate (78) and an adaptive shaft (79); a through hole is provided on one side wall of the vibration bucket (6), and a fixing seat (70) is fixed at the opening of the through hole, and the push rod assembly (71) is sleeved on the fixing seat (70).

6. The tobacco leaf vibrating screening machine according to claim 5, characterized in that: The slider (75) is hinged to the flip frame (77) through the flip shaft (76), the material-pickup plate (78) is fixed at the lower end of the flip frame (77), a rectangular groove is arranged at the rear side of the flip frame (77), the adaptive pressure block (74) is matched and fitted in the rectangular groove, the adaptive shaft (79) is installed on the adaptive pressure block (74), the telescopic rod (72) is arranged at the front end of the push rod assembly (71), the end of the telescopic rod (72) is hinged to the adaptive shaft (79), the adaptive spring (73) is fitted in the rectangular groove, and the adaptive spring (73) is supported below the adaptive pressure block (74).

7. The tobacco leaf vibrating screening machine according to claim 5, characterized in that: The push rod assembly (71) is an electric push rod or a cylinder.

8. The tobacco leaf vibrating screening machine according to claim 5, characterized in that: Track grooves (11) are provided on both side walls of the vibration bucket (6), and the sliding block (75) is mounted inside the track grooves (11).

9. The tobacco leaf vibrating screening machine according to claim 8, characterized in that: A friction pad is provided on the side of the sliding block (75).

10. The tobacco leaf vibrating screening machine according to claim 1, characterized in that: The vibrating screening device (2) comprises a head end frame, a tail end frame, a screening frame and a driving mechanism, wherein an upper screen and a lower screen are arranged in the screening frame, and the driving mechanism is installed in the area between the head end frame and the tail end frame.

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