Four-layer screening device for removing coarse old leaves

Abstract

The utility model discloses a four-layer screening device for removing coarse old leaves, which is characterized in that a screening layer is arranged below a feed hopper, the screening layer is connected with a supporting seat through a supporting spring, the left end of the screening layer is connected with an output slope, a blanking slope with opposite inclination directions is arranged below the screening layer, and the left end of the blanking slope is connected with the left end of the screening layer. According to the four-layer screening device for removing the thick and old leaves, the situation that in the prior art, in the actual use process, tea leaves are prone to being clamped in the process that the tea leaves are screened through a screen mesh, and materials clamped on the screen mesh are difficult to clean is improved, and through the arrangement of the structure that a downward pressing rail, a downward pressing sliding block and a downward pressing roller are matched, after being used for a period of time, the tea leaves can be separated from the screen mesh. When tea leaves are clamped on the screen, the rear bin door is opened, the lower pressing roller is inserted into the lower pressing track left and right and pushed downwards, the tea leaves clamped on the screen can be pressed down in the downward pushing process, and therefore one-time cleaning is completed, the structure and operation are simple, manual operation can be achieved without training, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tea processing equipment, in particular to a four-layer screening device for removing coarse and old leaves. Background Art

[0002] At present, Chinese Patent No.: CN201810463035.7 discloses a tea screening machine, including a frame, a vibration device and a sieve plate, wherein: an air bag is arranged between the vibration device and the sieve plate, the air bag is provided with a first opening that can be opened inwardly and a second opening that can be opened outwardly, a first collecting box is arranged on one side of the frame, the first collecting box is provided with a feeding port connected to the second opening, and the feeding port is hinged with a sieve that can be opened inwardly; a cleaning plate that can move upward is arranged on the frame, a cleaning rod is arranged on the upper surface of the cleaning plate, and the cleaning rod is arranged opposite to the sieve holes of the sieve plate; a connecting rod is also arranged on the frame, the middle part of the connecting rod is hinged on the frame, one end of the connecting rod is hinged to the first collecting box, and the other end of the connecting rod is hinged to the cleaning plate, and the cleaning plate can move upward during the downward movement of the first collecting box; a second collecting box is arranged on the frame, the second collecting box is located above the sieve plate, and a plurality of filtering holes that are small at the top and large at the bottom are opened on the bottom surface of the second collecting box.

[0003] CN201820393742.9 discloses a tea screening device, which includes a base, a screening mechanism, a feeding mechanism, a driving mechanism and a storage box. The tea raw materials are transported into the screening shaft through the screening mechanism, and the screening shaft and the screening cylinder are driven by the first motor and the second motor to rotate alternately. The coarse old leaves are filtered through the screening shaft, and the tea stems and tender tea leaves are filtered and separated through the screening cylinder. The filtered tender tea leaves, tea stems and coarse old leaves are respectively collected in the tender tea storage box, the tea stem storage box and the coarse old leaf storage box for discharge. The utility model overcomes the problems of difficult separation, low purity and low grade in the original tea processing process, and has the characteristics of simple structure, convenient and fast screening, high separation efficiency, and improved tea purity and grade.

[0004] However, in actual use, the prior art still has the problem that the screen is easily stuck during the process of screening tea leaves, and it is difficult to clean up the materials stuck thereon. Utility Model Content

[0005] Therefore, in view of the above-mentioned problems, the utility model proposes a four-layer screening device for removing coarse and old leaves, which solves the technical problem that the screen is easy to get stuck and it is difficult to clean up the materials stuck therein during the actual use of the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions: a four-layer screening device for removing coarse and old leaves, the structure of which includes a main frame, a feed hopper, a sub-screening layer, a support spring, a support seat, a material discharge slope, a connecting rod, an output slope, a conveyor belt, a rear door, and a hinge. The feed hopper is arranged on the top of the main frame, and a sub-screening layer is arranged below the feed hopper. The sub-screening layer is connected to the support seat through a support spring, and the left end of the sub-screening layer is connected to the output slope. A material discharge slope with an opposite inclination direction is arranged below the sub-screening layer, and the material discharge slope is fixedly connected to the sub-screening layer through a connecting rod. A vibration motor for driving the vibration of the sub-screening layer is arranged on the sub-screening layer;

[0007] It also includes a pressing track, a pressing slider, a pressing roller, a transverse connecting rod, and a movable rod. The pressing track is arranged inside the side wall of the sub-screening layer, and the pressing track cooperates with the pressing slider. The left and right ends of the supporting shaft of the pressing roller are fixedly connected to the pressing slider, the pressing slider is fixedly connected to the transverse connecting rod, and the transverse connecting rod is rotatably connected to the movable rod.

[0008] Furthermore, the sub-screening layers are provided with four layers, and the multiple sub-screening layers are arranged up and down, and the material feeding directions thereof are the same.

[0009] Furthermore, a conveyor belt is arranged at the bottom of the sub-screening layer, and a rear door is arranged on the right side of the main frame, and the rear door is connected to the main frame through a hinge.

[0010] Furthermore, the mesh sizes of the sieves of the sub-screening layers increase from top to bottom.

[0011] Furthermore, the screen is made of stainless steel.

[0012] Furthermore, the push-down slider is a square structure with rounded corners.

[0013] By adopting the above-mentioned technical scheme, the beneficial effects of the utility model are as follows: the four-layer screening device for removing coarse and old leaves improves the existing technology. In actual use, there is still a situation in which the screen is easily stuck during the process of screening tea leaves and it is difficult to clean up the materials stuck on it. By setting a structure that cooperates with a downward pressure track, a downward pressure slider, and a downward pressure roller, after a period of use, some tea leaves will be stuck on the screen. At this time, the rear door is opened, and the downward pressure roller is inserted into the downward pressure track from left to right and pushed downward. In the process of pushing downward, the tea leaves stuck on the screen can be pressed down, thereby completing one cleaning. The structure and operation are simple, and it can be operated without training, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the sub-screening layer of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the lower pressing roller of the utility model.

[0017] In the figure: 1. Main frame; 2. Feed hopper; 3. Screening layer; 4. Support spring; 5. Support seat; 6. Unloading slope; 7. Connecting rod; 8. Output slope; 9. Conveyor belt; 10. Rear door; 11. Down-pressing track; 12. Down-pressing slide block; 13. Down-pressing roller; 14. Horizontal connecting rod; 15. Movable rod. DETAILED DESCRIPTION

[0018] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0019] refer to Figure 1-Figure 3 The present embodiment provides a four-layer screening device for removing coarse and old leaves, and the structure thereof includes a main frame 1, a feed hopper 2, a sub-screening layer 3, a support spring 4, a support seat 5, a material discharge slope 6, a connecting rod 7, an output slope 8, a conveyor belt 9, a rear door 10, and a hinge. The feed hopper 2 is arranged on the top of the main frame 1, and the sub-screening layer 3 is arranged below the feed hopper 2. The sub-screening layer 3 is connected to the support seat 5 through the support spring 4, and the left end of the sub-screening layer 3 is connected to the output slope 8. A material discharge slope 6 with an opposite inclination direction is arranged below the sub-screening layer 3. The material discharge slope 6 is fixedly connected to the sub-screening layer 3 through a connecting rod 7, and a vibration motor for driving the sub-screening layer 3 is arranged on the sub-screening layer 3, and further comprises a pressing track 11, a pressing slider 12, a pressing roller 13, a transverse connecting rod 14, and a movable rod 15. The pressing track 11 is arranged inside the side wall of the sub-screening layer 3, and the pressing track 11 cooperates with the pressing slider 12. The left and right ends of the support shaft of the pressing roller 13 are fixedly connected to the pressing slider 12, and the pressing slider 12 is fixedly connected to the transverse connecting rod 14, and the transverse connecting rod 14 is rotatably connected to the movable rod 15.

[0020] The sub-screening layers 3 are provided with four layers, and the multiple sub-screening layers 3 are arranged up and down, and the material feeding directions thereof are the same.

[0021] A conveyor belt 9 is arranged at the bottom of the sub-screening layer 3, and a rear door 10 is arranged on the right side of the main frame 1, and the rear door 10 is connected to the main frame 1 through a hinge.

[0022] The mesh sizes of the sieves of the sub-screening layer 3 increase from top to bottom.

[0023] The screen is made of stainless steel.

[0024] The pressing slider 12 is a square structure with rounded corners.

[0025] The four-layer screening device for removing coarse and old leaves improves the prior art. In actual use, the screen is still easy to get stuck during screening tea leaves, and it is difficult to clean up the materials stuck on it. By setting a structure that cooperates with a downward pressing track 11, a downward pressing slider 12, and a downward pressing roller 13, some tea leaves will be stuck on the screen after a period of use. At this time, the rear door 10 is opened, and the downward pressing roller 13 is inserted into the downward pressing track 11 and pushed downward. In the process of pushing downward, the tea leaves stuck on the screen can be pressed down, thereby completing one cleaning. The structure and operation are simple, and it can be operated without training, and it is easy to use.

[0026] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A four-layer screening device for removing coarse and old leaves, characterized in that: Its structure includes a main frame, a feed hopper, a sub-screening layer, a support spring, a support seat, a material discharge slope, a connecting rod, an output slope, a conveyor belt, a rear door, and a hinge. The feed hopper is arranged on the top of the main frame, and a sub-screening layer is arranged below the feed hopper. The sub-screening layer is connected to the support seat through a support spring, and the left end of the sub-screening layer is connected to the output slope. A material discharge slope with an opposite inclination direction is arranged below the sub-screening layer, and the material discharge slope is fixedly connected to the sub-screening layer through a connecting rod. A vibration motor for driving the sub-screening layer to vibrate is arranged on the sub-screening layer; It also includes a pressing track, a pressing slider, a pressing roller, a transverse connecting rod, and a movable rod. The pressing track is arranged inside the side wall of the sub-screening layer, and the pressing track cooperates with the pressing slider. The left and right ends of the supporting shaft of the pressing roller are fixedly connected to the pressing slider, the pressing slider is fixedly connected to the transverse connecting rod, and the transverse connecting rod is rotatably connected to the movable rod.

2. A four-layer screening device for removing coarse and old leaves according to claim 1, characterized in that: The sub-screening layers are provided with four layers, and the multiple sub-screening layers are arranged up and down, and the material feeding directions thereof are the same.

3. A four-layer screening device for removing coarse and old leaves according to claim 1, characterized in that: A conveyor belt is arranged at the bottom of the sub-screening layer, and a rear door is arranged on the right side of the main frame, and the rear door is connected to the main frame through a hinge.

4. A four-layer screening device for removing coarse and old leaves according to claim 1, characterized in that: The mesh numbers of the sieves of the sub-screening layers increase from top to bottom.

5. A four-layer screening device for removing coarse and old leaves according to claim 4, characterized in that: The screen is made of stainless steel.

6. A four-layer screening device for removing coarse and old leaves according to claim 1, characterized in that: The pressing slider is a square structure with rounded corners.

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