CN104307749B - Hand formula tealeaves grading plant - Google Patents

Abstract

The invention discloses a hand-cranked tea grading device. A mounting seat is fixed side by side on the left side of the top surface of the base, and a mounting shaft is supported by a bearing between the two mounting seats. The driving sprocket is connected to the driven sprocket through a chain; There are two connecting pieces coaxially fixed on the rotating shaft on the front side of the driven sprocket. There are six connecting strips evenly distributed in the circumferential direction between the two connecting pieces. The two ends of each preliminary classification screen are inserted into the two adjacent connecting strips. In the card slot, all the preliminary grading screens are fixed on the two connectors; there is a blocking cover outside the connector, a placement rack directly below the rotating shaft, and a secondary placement rack placed horizontally on each layer of the rack. Grading screens. The present invention can effectively achieve classification according to the size of tea particles in a hand-cranked manner. The number of divided levels can be selected according to actual needs between 3 and 6 levels. The entire grading process only requires the operator to stand and shake the installation shaft to achieve grading. The efficiency is high, the effect is good, and the labor intensity of workers is low.

Description

A hand-operated tea grading device

technical field

The invention belongs to the field of tea processing, and in particular relates to a hand-operated tea grading device.

Background technique

During the processing of tea leaves, it needs to be sorted into different grades according to the particle size and fullness of the tea leaves, and the grading work is generally done by pure manual methods at present, which is inefficient and labor-intensive for workers. Therefore, it is urgent to solve the above-mentioned technology problem.

Contents of the invention

The technical problem to be solved by the present invention is to provide an efficient hand-operated tea grading device.

The technical scheme of the present invention is as follows: a hand-operated tea grading device, characterized in that it includes a base 1 and a preliminary grading screen 10, wherein the left part of the top surface of the base 1 is fixed side by side with a mounting seat 2, the two An installation shaft 20 is supported by bearings between the installation seats, and the height of the installation shaft from the ground is 1.2-1.6m; the front side of the installation shaft 20 is fixed with a handle 21, and the installation shaft 20 between the installation seats 2 The upper coaxial fixed sleeve has a driving sprocket 3 and an eccentric sleeve 4; the driving sprocket 3 is connected with the driven sprocket 6 through a chain 5, and the ratio of the diameter of the driven sprocket to the diameter of the driving sprocket 3 is 3 : 1, and the driven sprocket 6 is fixedly sleeved on the rear side of the rotating shaft 7, and the front and rear sides of the rotating shaft are respectively supported on the corresponding support base 22 by bearings, and the support base is fixed on the right side of the top surface of the base 1. part; the rotating shaft 7 on the front side of the driven sprocket 6 is coaxially sleeved with two connecting pieces 8, and each connecting piece is composed of a regular hexagonal part and a radial strip part, wherein the radial strip part The inner end is fixed to the rotating shaft 7, and the outer end of the radial strip part is fixed to the inner wall of the regular hexagonal part; six connecting bars 9 are evenly distributed along the circumferential direction between the two connecting parts 8, and the two connecting bars of each The sides are respectively fixed to the vertices of the regular hexagons of the corresponding side connectors 8, and the two end faces of each connecting bar 9 are provided with recessed draw-in grooves 9a near the connectors 8; the preliminary grading screen 10 is a rectangular planar structure , the edge of each preliminary grading screen is covered with iron sheets, and the number of preliminary grading screens 10 is six. The apertures of these preliminary grading screens are not exactly the same, and the apertures of the meshes have n kinds of specifications, 3≤n≤ 6. All the preliminary grading screens 10 are evenly distributed along the circumference, and the two ends of each preliminary grading screen are inserted into the slots 9a of two adjacent connecting bars 9, so that all the preliminary grading screens 10 are It is fixed on the two connectors 8 in a detachable manner; a barrier cover 11 is provided outside the connector 8, and the barrier cover covers all the preliminary grading screens 10, and the barrier cover 11 consists of two left and right The upper ends of the two half bodies 11a are hinged by a pin shaft 12, the pin shaft is parallel to the rotating shaft 7, and the lower end of the left half body 11a is fixed to the top surface of the base 1, and the right half body 11a The lower end is suspended;

A placement frame 13 is provided directly below the rotating shaft 7, and the placement frame is supported on the top surface of the base 1 through bearings, and the placement frame 13 is a multi-layer frame structure with layers N, and N=n, and Every layer of the placement frame 13 is horizontally placed with a secondary grading screen 14; the mesh apertures of all the secondary grading screens 14 are different, and the mesh apertures of each secondary grading screen correspond to a preliminary classification of a specification The mesh aperture of the screen cloth 10, and the mesh aperture of the secondary classification screen cloth 14 decreases successively from the top to the bottom of the placement frame 13;

There is a connecting sleeve 15 in the outside of the eccentric sleeve 4, the connecting sleeve is fixed on the upper end of the connecting rod 16, the lower end of the connecting rod 16 is hinged with the left end of the sliding rod 18 through the connecting pin shaft 17, and the connecting pin shaft 17 is connected to the rotating shaft 7 parallel; the slide bar 18 is slidably matched with the guide sleeve 19 on the top surface of the base 1, and the right end of the slide bar 18 is fixed with the left end of the placement frame 13, thereby driving the placement frame 13 to reciprocate left and right.

When in use, add the tea leaves to be screened from the opening of the front connecting bar 9, and rotate the installation shaft 20 by hand, and the rotating installation shaft 20 drives the preliminary grading screen 10 to rotate through the chain assembly, and the tea leaves are rotated under the centrifugal force The meshes of the primary grading screen 10 are thrown out under the action. Since the number of preliminary grading screens 10 is six, the apertures of these preliminary grading screens 10 are not exactly the same, and the apertures of the meshes have n kinds of specifications, 3≤n≤6, so that according to the particle size and fullness of the tea leaves The tea leaves are initially graded, and the number of grades divided into n grades. The tea leaves after preliminary classification are blocked by the blocking cover 11, and fall vertically under the action of gravity, and the falling tea leaves fall on the uppermost secondary grading screen 14; Driven by the mechanism, it reciprocates left and right, so that the tea leaves on the upper secondary grading screen 14 can be shaken, so that the tea leaves with small particles can pass through the upper secondary grading screen 14, and then fall to the lower secondary grading screen 14 under the action of gravity. Classification screen 14 places; Because the mesh apertures of all described secondary classification screens 14 are different, the mesh aperture of each secondary classification screen corresponds to the preliminary classification screen 10 mesh apertures of a specification, and the secondary classification The mesh aperture of screen cloth 14 decreases successively from the top of placement rack 13 to the bottom, so that secondary classification can be carried out by secondary classification screen cloth 14. Blocked by the secondary grading screen 14 below, the tea leaves with large particles will be directly blocked by the secondary grading screen 14 above, and finally the secondary grading screen 14 filled with tea leaves will be taken out, and the secondary grading screen 14 above will The particle of tealeaves in middle is big, and the particle of tealeaves in secondary grading screen cloth 14 below is little, and grading effect is good.

By adopting the above technical scheme, the present invention can efficiently classify according to the size of tea leaves by hand, and the number of stages can be selected from 3 to 6 according to actual needs, and the whole grading process only requires the operator to stand and shake Just install the shaft 20, the classification efficiency is high, the effect is good, the labor intensity of the workers is low, the operation is labor-saving, and there is no power consumption, so that the present invention is especially suitable for tea factories in remote mountainous areas.

As preferably, a baffle plate 23 is sheathed on the rear side of the rotating shaft 7, and the front plate surface of the baffle plate is attached to the rear side of the connecting bar 9, so as to prevent tea leaves from leaking from the rear side of the connecting bar 9 to the The preliminary grading screen 10 outside.

In this case, the value of n is preferably 6, so that the tea leaves can be divided into 6 grades according to the particle size and plumpness of the tea leaves. Of course, in the actual manufacturing process, n can also be selected as 3, 4 or 5, not necessarily limited to 6 in this case.

Beneficial effects: the invention can efficiently classify according to the size of tea leaves by hand, and the number of stages can be selected from 3 to 6 according to actual needs, and the entire grading process only requires the operator to stand and shake the installation shaft That is, the classification efficiency is high, the effect is good, the labor intensity of the workers is low, the operation is labor-saving, and there is no power consumption, so that the present invention is especially suitable for tea factories in remote mountainous areas.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is an enlarged view of the connector in Fig. 1 .

detailed description

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Figures 1, 2, and 3, a hand-operated tea grading device is mainly composed of a base 1, a mounting base 2, a driving sprocket 3, an eccentric sleeve 4, a chain 5, a driven sprocket 6, and a rotating shaft 7. Part 8, connecting strip 9, primary grading screen 10, blocking cover 11, pin shaft 12, placement frame 13, secondary grading screen 14, connecting sleeve 15, connecting rod 16, connecting pin 17, slide bar 18, guide Cover 19, mounting shaft 20, handle 21, support base 22 and baffle plate 23 constitute. Wherein, the base 1 is a flat plate structure, and a mounting seat 2 is fixed side by side on the left part of the top surface of the base 1, and a mounting shaft 20 is supported by a bearing between the two mounting seats 2. The height of the mounting shaft 20 from the ground is It is 1.2-1.6m, and can be further preferably 1.3, 1.4 and 1.5m. The front side of the installation shaft 20 is fixed with a handle 21, the handle 21 is a "Z" shape structure, and the installation shaft 20 between the installation seats 2 is coaxially sleeved with a drive sprocket 3 and an eccentric sleeve 4.

The driving sprocket 3 is connected with the driven sprocket 6 through the chain 5, the ratio of the diameter of the driven sprocket 6 to the diameter of the driving gear 3 is 3:1, and the driven sprocket 6 is fixed behind the rotating shaft 7 The front side and the rear side of the rotating shaft 7 are respectively supported on the corresponding support base 22 through bearings, and the support base 22 is fixed on the right part of the top surface of the base 1 . The rotating shaft 7 on the front side of the driven sprocket 6 is coaxially sleeved with two connecting pieces 8, and each connecting piece 8 is composed of a regular hexagonal part and a radial strip part, wherein the inner part of the radial strip part The end is fixed to the rotating shaft 7, and the outer end of the radial strip part is fixed to the inner wall of the regular hexagonal part. Six connecting bars 9 are evenly distributed along the circumference between the two connecting parts 8, and the two sides of each connecting bar 9 are respectively fixed with the vertices of the regular hexagon part of the corresponding side connecting part 8, and each connecting bar 9 has two end surfaces A recessed card slot 9a is provided near the connecting piece 8 .

It can be seen from Figures 1, 2 and 3 that the preliminary grading screen 10 is a rectangular planar structure, and the edge of each preliminary grading screen 10 is covered with an iron sheet. The number of preliminary grading screens 10 is six, and the apertures of these preliminary grading screens 10 are not completely the same, and the apertures of the meshes have n kinds of specifications, 3≤n≤6. In this case, the value of n is 6. All the preliminary grading screens 10 are evenly distributed along the circumferential direction, and the two ends of each preliminary grading screen 10 are inserted into the draw-in grooves 9a of two adjacent connecting bars 9, so that all the preliminary grading screens 10 are detachable The way is fixed on the two connectors 8. In the specific use process, the preliminary grading screens 10 with different mesh apertures can be replaced to achieve different grading purposes. Divide into five grades and will use five kinds of preliminary grading screens 10 with different mesh apertures. A blocking cover 11 is arranged on the outside of the connecting piece 8, and the blocking cover 11 covers all the preliminary grading screens 10, and the blocking cover 11 is composed of left and right half bodies 11a, and the two half bodies 11a The upper end is hinged by a pin shaft 12, which is parallel to the rotating shaft 7, and the lower end of the left half body 11a is fixed to the top surface of the base 1, and the lower end of the right half body 11a is suspended. And, the purpose of blocking cover 11 is to block the tea leaves that fly out, so that the tea leaves that fly out are allowed to fall vertically. A baffle plate 23 is sheathed on the rear side of the rotating shaft 7 , and the front surface of the baffle plate 23 is attached to the rear side of the connecting bar 9 , so as to prevent tea leaves from leaking out from the rear side of the connecting bar 9 .

It can also be seen from Figures 1, 2 and 3 that a placement frame 13 is provided directly below the rotating shaft 7, and the placement frame 13 is supported on the top surface of the base 1 through bearings. The placement frame 13 is a multi-layer frame structure with layers N, and N=n, and a secondary grading screen 14 is placed horizontally on each layer of the placement frame 13 . The mesh apertures of all secondary classification screens 14 are different, and the mesh apertures of each secondary classification screen 14 correspond to the preliminary classification screen 10 mesh apertures of a specification, and the mesh apertures of secondary classification screens 14 are placed from The upper part of the frame 13 decreases successively toward the lower part.

Said eccentric sleeve 4 has a connecting sleeve 15 which is empty outside the sleeve. The connecting sleeve 15 is fixed on the upper end of the connecting rod 16. The lower end of the connecting rod 16 is hinged with the left end of the sliding rod 18 through the connecting pin shaft 17. The connecting pin shaft 17 is connected to the The rotating shaft 7 is parallel. The slide bar 18 is slidably matched with the guide sleeve 19 on the top surface of the base 1, and the right end of the slide bar 18 is fixed to the left end of the placement frame 13, thereby driving the placement frame 13 to reciprocate left and right.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention. within the scope of protection.

Claims (3)

1. a shaking tea dry sorting device, it is characterized in that: comprise base (1) and preliminary classification screen cloth (10), wherein it is fixed with a mount pad (2) before and after the left part of base (1) end face side by side, having an installation shaft (20) by bearings between these two mount pads, the terrain clearance of this installation shaft is 1.2-1.6m; The front side of described installation shaft (20) is fixed with handle (21), and is coaxially installed with a drive sprocket (3) and eccentric cover (4) in installation shaft (20) between mount pad (2); Described drive sprocket (3) is connected with driven sprocket wheel (6) by chain (5), the diameter of this driven sprocket wheel and drive sprocket (3) diameter ratio are 3:1, and driven sprocket wheel (6) is solidly set on rotating shaft (7) side afterwards, the forward and backward side of this root rotating shaft respectively by bearings on the support seat (22) of correspondence, and support seat and be fixed on the right portion of described base (1) end face; The rotating shaft (7) of described driven sprocket wheel (6) front side is coaxially installed with two web members (8), each web member is made up of positive hexagonal portion and radial stripes, wherein the inner of radial stripes is fixed with rotating shaft (7), and the radial direction outer end of stripes and the inwall of described positive hexagonal portion are fixed; Six roots of sensation connecting strip (9) circumferentially it is evenly equipped with between two described web members (8), the both sides of every root connecting strip positive hexagonal portion summit with respective side web member (8) are fixed respectively, and every root connecting strip (9) two end faces are provided with the card groove (9a) of depression near the position of web member (8); Described preliminary classification screen cloth (10) is rectangle plane structure, the edge of each preliminary classification screen cloth is surrounded by iron sheet, and the number of preliminary classification screen cloth (10) is six pieces, the aperture of these preliminary sizing screen net meshes is incomplete same, and there is n kind specification in the aperture of mesh, 3��n��6; All described preliminary classification screen clothes (10) are circumferentially uniform, in the card groove (9a) of the adjacent two described connecting strips (9) of two ends insertion of each preliminary classification screen cloth, thus all preliminary classification screen clothes (10) are fixed on two web members (8) removably; Described web member (8) outside is provided with one and stops cover (11), all preliminary classification screen clothes (10) are covered by this stop cover, and stop that cover (11) is made up of left and right two and half bodies (11a), this two and half bodies (11a) upper end is hinged by bearing pin (12), this bearing pin is parallel with described rotating shaft (7), and half body (11a) the lower end on the left side and described base (1) end face fix, half body (11a) the lower end on the right is unsettled;

It is provided with a rack (13) immediately below described rotating shaft (7), this rack by bearings on described base (1) end face, and rack (13) is the number of plies is the multistory frame structure of N, and N=n, and there is a secondary grading screen cloth (14) in every layer of horizontal positioned of rack (13); The mesh aperture of all described secondary grading screen clothes (14) is different, preliminary classification screen cloth (10) the mesh aperture of the corresponding a kind of specification in the mesh aperture of each secondary grading screen cloth, and the mesh aperture of secondary grading screen cloth (14) reduces from the top of rack (13) successively toward bottom;

Described bias cover (4) outside is set with an adapter sleeve (15), this connection is fixed in connecting rod (16) upper end, the lower end of connecting rod (16) is hinged with sliding bar (18) left end by connecting bearing pin (17), and this connection bearing pin (17) is parallel with described rotating shaft (7); Described sliding bar (18) is slidably matched with the orienting sleeve (19) on base (1) end face, and sliding bar (18) right-hand member fixes with described rack (13) left end, thus move back and forth about driving rack (13).

2. shaking tea dry sorting device according to claim 1, it is characterised in that: described rotating shaft (7) is installed with one piece of baffle plate (23) in side afterwards, the front face of this baffle plate and the rear side laminating of described connecting strip (9).

3. shaking tea dry sorting device according to claim 1 and 2, it is characterised in that: the numerical value of described n is 6.