Improved tea leaf circular screening machine

Abstract

The utility model provides an improved tea leaf circular screening machine which comprises a base and an outer cylinder arranged above the base, a plurality of first supporting springs are arranged in the circumferential direction between the base and the outer cylinder at intervals, a driving mechanism for driving the outer cylinder to rotate is arranged on the base, a feeding hopper is arranged at the top of the outer cylinder, an inner cylinder is arranged in the outer cylinder, and the inner cylinder is arranged in the base. A plurality of telescopic springs with different elasticity are arranged between the side walls of the outer barrel and the inner barrel at intervals, a second supporting spring is arranged between the bottom end of the outer barrel and the bottom face of the inner barrel, a plurality of mesh screens are arranged on the inner barrel from top to bottom at intervals, and one side of each mesh screen horizontally communicates with a discharging channel; the side wall of the outer cylinder is provided with a plurality of through grooves suitable for the discharging channels to penetrate through. The tea leaf circular screening machine is reasonable in structural design, convenient to use and low in manufacturing cost, the tea leaf screening effect can be enhanced on the original basis, and screening is more thorough.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of tea processing, and particularly relates to an improved tea round sifter. BACKGROUND

[0002] The tea round sifter is widely applied to the tea processing industry and is a kind of mechanical equipment for separating tea leaves into several grades according to the size of the tea leaves and removing tea dust, so as to improve the quality of the tea leaves. The working part of the existing tea plane round sifter is a round sifter bed composed of multiple layers of round screens. The whole round sifter bed drives the sifter bed to make a circular motion. The rotation speed of the round sifter bed is very low, the operation is stable, and the power balance is good. Since the sifter bed can only be driven by a plane rotating device to make a plane circular motion, the effect of tea screening is not good.

[0003] Therefore, the utility model provides a round sifter which enhances the screening effect on the basis of the original round sifter. The round sifter has a reasonable structure, is convenient to use, and is low in cost. SUMMARY

[0004] The utility model provides an improved tea round sifter which has a reasonable structure, is convenient to use, is low in cost, and enhances the screening effect on the basis of the original round sifter. The specific scheme is as follows:

[0005] An improved tea round sifter, comprising a base and an outer cylinder arranged above the base, a plurality of first supporting springs are arranged at intervals in the circumferential direction between the base and the outer cylinder, a driving mechanism for driving the outer cylinder to rotate is arranged on the base, a feeding hopper is arranged at the top of the outer cylinder, an inner cylinder is arranged in the outer cylinder, a plurality of extension springs with different elastic forces are arranged at intervals between the side walls of the outer cylinder and the inner cylinder, a second supporting spring is arranged between the bottom end of the outer cylinder and the bottom surface of the inner cylinder, a plurality of screens are arranged at intervals from top to bottom in the inner cylinder, a plurality of discharge channels are in communication with the side surfaces of the plurality of screens, and a plurality of through grooves suitable for the discharge channels to pass through are formed in the side wall of the outer cylinder.

[0006] Further, the driving mechanism comprises a driving motor arranged on the top surface of the base, a vertical shaft is arranged on the base on the side of the driving motor and is arranged concentrically with the outer cylinder, a belt pulley is arranged on the output shaft of the driving motor and the vertical shaft, the two belt pulleys are connected by a belt, a driving block is horizontally arranged at the top of the vertical shaft, a pin shaft is rotatably arranged at the end of the driving block away from the vertical shaft, and the end of the pin shaft away from the driving block is fixedly connected with the bottom end of the outer cylinder.

[0007] Further, a guide cylinder is vertically and downwardly connected to the bottom end of the feeding hopper, and the guide cylinder is arranged opposite to the middle part of the screen.

[0008] Further, a stirring rod is arranged on the upper part of the inner wall of the outer cylinder, and one end of the stirring rod is horizontally arranged above the screen.

[0009] Further, the inner cylinder wall of the upper side of the plurality of screens is respectively provided with a reverse tapered material guide groove.

[0010] The utility model discloses the beneficial effect is:

[0011] The utility model discloses a improved generation tea leaf round sieve machine, through setting up drive mechanism and inner cylinder and the inner cylinder in setting up a plurality of screens, when control start drive motor can realize the screening of tea leaf, and set up a few stretchable springs of different elasticity between outer cylinder and inner cylinder, make the irregular floating action of inner cylinder under the action of elasticity in the screening process, thereby strengthen the effect of tea leaf screening, set up the material guide cylinder and reverse tapered material guide groove, make in the middle position when tea leaf falls to the screen, thereby make screening more thorough, through the setting of the material shifting lever can avoid a large number of tea leaf to fall after piling up, and this round sieve machine structure design is reasonable, convenient to use, and the cost is low, on the basis of the original screening machine, further strengthened the effect of tea leaf screening. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model.

[0013] Figure 2 It is the plan view of the utility model.

[0014] Figure 3 It is Figure 2 It is the A-A section view of the utility model.

[0015] Figure 4 It is Figure 3 It is the enlarged view of A part of the utility model.

[0016] Figure 5 It is the inside plan view of the utility model.

[0017] Figure 6 It is the inside structure schematic diagram of the utility model.

[0018] Figure 7 It is the material guide groove connection diagram of the utility model.

[0019] Explanation of the drawings: base 1, outer cylinder 2, first support spring 3, drive mechanism 4, drive motor 41, vertical shaft 42, drive block 43, pin shaft 44, feed hopper 5, inner cylinder 6, stretchable spring 7, second support spring 8, screen 9, discharge passage 10, through groove 11, material shifting lever 12, material guide groove 13, material guide cylinder 14. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0021] Referring to Figures 1-7 The improved tea leaf round sifter machine comprises a base 1, an outer cylinder 2 arranged above the base 1, a plurality of first supporting springs 3 arranged in a circumferential direction and spaced apart between the base 1 and the outer cylinder 2, a driving mechanism 4 arranged on the base 1 and configured to drive the outer cylinder 2 to rotate, a feeding hopper 5 arranged at a top of the outer cylinder 2, an inner cylinder 6 arranged in the outer cylinder 2, a plurality of elastic springs 7 arranged between the outer cylinder 2 and a side wall of the inner cylinder 6 and having different elastic forces, so that the inner cylinder 6 can produce irregular floating movements under the actions of the elastic springs 7 during the sifting process, a second supporting spring 8 arranged between a bottom end of the outer cylinder 2 and a bottom surface of the inner cylinder 6, a plurality of screens 9 arranged in the inner cylinder 6 and spaced apart from each other, the plurality of screens 9 being arranged from top to bottom with the mesh sizes gradually decreasing, a discharge channel 10 horizontally and communicatively arranged on one side of each of the plurality of screens 9, a plurality of through grooves 11 arranged on a side wall of the outer cylinder 2 and adapted to be passed through by the discharge channel 10, and the discharge channel 10 being arranged in a gap with the side wall of the through groove 11 in a circumferential direction, so that the discharge channel 10 does not rub against the side wall of the through groove 11 when the inner cylinder 6 moves.

[0022] Preferably, the driving mechanism 4 comprises a driving motor 41 arranged on a top surface of the base 1, a vertical shaft 42 arranged on the base 1 and coaxial with the outer cylinder 2, a belt pulley arranged on an output shaft of the driving motor 41 and the vertical shaft 42, a driving block 43 horizontally arranged on a top of the vertical shaft 42, a pin shaft 44 rotatably arranged on an end of the driving block 43 away from the vertical shaft 42, a bearing inlaid on the driving block 43, the vertical shaft 42 arranged in the bearing, and the pin shaft 44 fixedly connected to a bottom end of the outer cylinder 2.

[0023] Preferably, the feeding hopper 5 is vertically and downwardly connected to a guide cylinder 14, the guide cylinder 14 is arranged opposite to a middle portion of the screen 9, so that tea leaves can be arranged in the middle portion of the screen 9 when falling from the feeding hopper 5, thereby effectively increasing the sifting time of the tea leaves and making the sifting of the tea leaves more thorough.

[0024] Preferably, a stirring rod 12 is arranged on an inner wall of the outer cylinder 2, one end of the stirring rod 12 is horizontally arranged above the screen 9, so as to avoid the tea leaves from piling up when falling from the feeding hopper 5.

[0025] Preferably, a plurality of inverted conical guide grooves 13 are arranged on the inner cylinder 6 above the plurality of screens 9, the guide grooves 13 are arranged to allow the tea leaves sifted from an upper screen 9 to fall into a middle portion of a lower screen 9, thereby effectively increasing the sifting time of the tea leaves and making the sifting of the tea leaves more thorough.

[0026] The utility model discloses an improved working principle of the round sieve machine: first control starting drive motor 41 makes the round sieve machine start and place the receiving barrel in the discharge end of multiple discharge channels 10, then pour tea into the feed hopper 5, drive motor 41 rotates through the belt drive and drives the rotation of the driving block 43, and the driving block 43 can drive the rotation of the outer cylinder 2, so that the tea can be screened through the multiple layer screen 9, and a plurality of elastic springs 7 with different elastic forces are arranged between the outer cylinder 2 and the inner cylinder 6, so that the inner cylinder produces irregular floating action under the action of the elastic force in the screening process, thereby enhancing the effect of tea screening, the guide cylinder 14 and the inverted conical guide groove 13 are arranged, so that the tea falls in the middle position when falling to the screen, thereby making the screening more thorough, and the material stirring rod can avoid a large amount of tea from piling up after falling.

[0027] It is apparent to those skilled in the art that the application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other embodiments without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are part of the application. It is also to be understood that the use of relational terms such as "first", "second" and "third", and the like, if any, are used solely to distinguish one from another entity without necessarily implying a serial or chronological order, unless the context clearly indicates otherwise.

[0028] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every implementation embodies an independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An improved tea leaf circular sifting machine characterized by: The utility model provides a kind of rotary screen, including base (1) and the outer tube (2) being arranged above base (1), the circumferential interval is provided with multiple first support springs (3) between base (1) and outer tube (2), drive mechanism (4) is provided on base (1), and drive mechanism (4) is arranged to drive outer tube (2) rotation, outer tube (2) top is equipped with feeding hopper (5), inner tube (6) is equipped in outer tube (2), and multiple stretchable springs (7) with different elastic forces are arranged between the side wall of outer tube (2) and inner tube (6), second support spring (8) is arranged between the bottom end of outer tube (2) and the bottom surface of inner tube (6), multiple screen meshes (9) are arranged from top to bottom in inner tube (6), and multiple screen meshes (9) are evenly connected with discharge channel (10) on one side, multiple through grooves (11) suitable for discharge channel (10) to pass through are formed on the side wall of outer tube (2).

2. The improved tea leaf circular sifting machine as claimed in claim 1, wherein: The drive mechanism (4) includes a drive motor (41) arranged on the top surface of the base (1), a vertical shaft (42) is vertically arranged on the base (1) on one side of the drive motor (41) and is concentrically arranged with the outer tube (2), a belt pulley is arranged on the vertical shaft (42) and the output shaft of the drive motor (41), the two belt pulleys are connected by a belt, a drive block (43) is horizontally arranged on the top of the vertical shaft (42), a pin shaft (44) is rotatably arranged on one end of the drive block (43) away from the vertical shaft (42), and the pin shaft (44) is fixedly connected to the bottom end of the outer tube (2) on one end away from the drive block (43).

3. The improved tea leaf circular sifting machine as claimed in claim 1, wherein: The bottom end of the feeding hopper (5) is vertically and downwardly connected with a guide cylinder (14), and the guide cylinder (14) is oppositely arranged with the middle part of the screen mesh (9).

4. The improved tea leaf circular sieve machine as claimed in claim 1, wherein: A material stirring rod (12) is arranged on the inner wall of the outer tube (2) at the upper part, and one end of the material stirring rod (12) is horizontally located above the screen mesh (9).

5. The improved tea leaf circular sieve machine as claimed in claim 1, wherein: A plurality of inverted conical guide grooves (13) are respectively arranged on the inner tube (6) wall above the screen meshes (9).

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