CN219323133U

CN219323133U - Tea leaf withering device

Info

Publication number: CN219323133U
Application number: CN202320311970.8U
Authority: CN
Inventors: 苏鸿; 方王琦; 曾庆义; 董源; 洪勇; 苏和生
Original assignee: Hangzhou Zhonghong Shuzhi Engineering Technology Co ltd
Current assignee: Hangzhou Zhonghong Shuzhi Engineering Technology Co ltd
Priority date: 2023-01-31
Filing date: 2023-02-24
Publication date: 2023-07-11
Anticipated expiration: 2033-02-24

Abstract

The utility model relates to the technical field of tea processing machinery, in particular to a tea withering device, which comprises a frame, wherein a conveying belt capable of conveying tea along a first direction is arranged on the frame, and a plurality of air holes are distributed on the belt surface of the conveying belt; the conveyor belt is at least partially horizontally unfolded to form a spreading area for spreading and airing tea leaves; along a first direction, one end of the spreading area forms a feeding side, and the other end forms a discharging side; the conveyor belt is internally surrounded to form a hollow space, a fan cover is arranged in the hollow space, the upper end of the fan cover is opened to form an open side, and the open side of the fan cover faces the spreading area; the withering device also comprises a blowing mechanism for blowing hot air into the fan housing. The carrier that this scheme adopted the conveyer belt to spread out green and wither of tealeaves, compare traditional artifical material loading or the unloading mode of spreading out tealeaves slowly, in this scheme, certainly more laborsaving and swift.

Description

Tea leaf withering device

Technical Field

The utility model relates to the technical field of tea processing machinery, in particular to a tea withering device.

Background

In the manufacturing process of tea, one important step is to wither the tea by spreading, specifically, after picking fresh leaves, spreading the fresh leaves evenly in a ventilated environment to wither the tea by spreading, so as to soften the tea by water loss.

At present, tea leaves are uniformly spread on a spreading frame by manpower, so that the tea leaves are naturally spread and spread for airing, and in some related technologies, in order to accelerate the withering efficiency of the tea leaves, a fan is generally arranged at the position of the spreading frame, and the withering of the tea leaves is accelerated by blowing by the fan.

However, the existing spreading and withering mode has the following defects: when tea feeding is carried out, the spreading frame cannot move, so that tea leaves are required to be spread on the plane of the spreading frame little by little manually, and when receiving is required after the completion of the spreading and withering, the tea leaves on the spreading frame are required to be manually and completely received little by little, so that the manual labor amount is obviously improved, the efficiency is low, and the improvement is still needed.

Disclosure of Invention

In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a tea leaf withering device.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the tea withering device comprises a frame, wherein a conveying belt capable of conveying tea along a first direction is arranged on the frame, and a plurality of air holes are distributed on the belt surface of the conveying belt; the conveyor belt is at least partially horizontally unfolded to form a spreading area for spreading and airing tea leaves; along a first direction, one end of the spreading area forms a feeding side, and the other end forms a discharging side; the conveyor belt is internally surrounded to form a hollow space, a fan cover is arranged in the hollow space, the upper end of the fan cover is opened to form an open side, and the open side of the fan cover faces the spreading area; the withering device also comprises a blowing mechanism for blowing hot air into the fan housing.

Compared with the prior art, the scheme has the advantages that:

firstly, in this scheme, through setting up the conveyer belt to make the regional level of part of conveyer belt expand in order to form the region of spreading tea, so, when carrying out tealeaves material loading, the people can be in the material loading side of conveyer belt, constantly fall tealeaves on the conveyer belt, thereby the conveyer belt just carries tealeaves forward, along with the forward transport of conveyer belt, finally tealeaves alright spread the region of spreading of conveyer belt, accomplish the material loading, so the material loading mode of spreading tealeaves slowly than traditional manual work, this mode is certainly more laborsaving and swift.

In addition, when the material is required to be received after the withering is finished, the conveying belt is started only by placing the container for receiving the tea leaves on the blanking side of the spreading area, the tea leaves paved on the spreading area of the conveying belt can move along with the conveying belt to the blanking side along with the advancing of the conveying belt, finally fall from the blanking side and fall into the container, and compared with the existing manual material receiving mode, the mode is more convenient and labor-saving.

In addition, in this scheme, owing to have the gas pocket on the area of conveyer belt, cooperation blast mechanism and fan housing simultaneously, so in the in-process that withers, blow air in the fan housing through blast mechanism, hot-blast blows the conveyer belt in the fan housing, finally discharges from the gas pocket, and so from the hot-blast efficiency that withers of tealeaves on the area of just can accelerating to stand of gas pocket exhaust.

Finally, it is worth to say that the wind shield is arranged in the hollow space of the conveyor belt in the scheme, so that wind guided out of the wind shield can be directly blown to the spreading area of the conveyor belt, and the wind shield is equivalent to that hot wind only passes through one layer of conveyor belt; on the contrary, if the fan housing is not arranged in the hollow space, but is directly arranged at the lower part of the whole conveying belt, at the moment, the wind guided out of the fan housing at least passes through two layers of conveying belts in the upward blowing process, so that the wind consumption can be increased undoubtedly.

Preferably, the air blowing mechanism is arranged at the side wall position of one side of the fan housing close to the feeding side; the wind cover comprises a wind deflector which is arranged opposite to the open side of the wind cover, and the wind deflector gradually inclines upwards along a first direction.

Preferably, the withering device further comprises a spreading mechanism for spreading tea leaves, wherein the spreading mechanism comprises a rotating shaft and a driving assembly, the rotating shaft is rotatably arranged, the driving assembly is used for driving the rotating shaft to rotate, and the rotating shaft extends along the width direction of the conveying belt and spans the upper part of the spreading area; a plurality of deflector rods are arranged on the rotating shaft at intervals along the axial direction.

Preferably, the shaft is height-adjustable relative to the spreading area.

Preferably, the spreading mechanism further comprises sliding components arranged on two sides of the frame, and the rotating shaft is arranged between the two sliding components; the sliding assembly comprises a sliding frame arranged on the frame, a sliding seat vertically arranged on the sliding frame in a sliding manner, and an adjusting piece for driving the sliding seat to vertically move for height adjustment, and the rotating shaft is rotatably arranged on the sliding seat.

Preferably, the adjusting piece comprises a screw rod, the screw rod is vertically arranged and is in threaded connection with the mounting frame, and the lower end of the screw rod is rotationally connected with the sliding seat.

Preferably, the driving assembly comprises a motor, and chain transmission is adopted between the motor and the rotating shaft; or the main shaft of the motor is fixed with the end part of the rotating shaft, and the motor is fixedly arranged on the sliding seat.

Preferably, the air blowing mechanism comprises a fan and an electric heating element arranged at the air outlet position of the fan.

Preferably, one end of the conveyor belt opposite to the feeding side is arranged with the frame at intervals to form the discharging side.

Preferably, the conveying belt comprises two transmission chains and a net body which are arranged at two sides of the width direction of the frame; a plurality of fixing strips distributed along the circumferential direction of the chain are fixed between the two transmission chains, and the net body is in a closed-loop structure and is fixedly sleeved on the fixing strips.

Additional advantages and effects of the utility model are set forth in the detailed description and drawings.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a partial cross-sectional view of the present utility model;

FIG. 3 is a cross-sectional view of the present utility model;

fig. 4 is an enlarged view of a portion a in fig. 1;

fig. 5 is a schematic view of a part of the structure of the blanking side position (the net body is removed) of the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present embodiment provides a tea leaf withering device, which includes a frame 1, wherein a conveyor belt 2 capable of conveying tea leaves along a first direction is disposed on the frame 1, and the first direction can be understood as a horizontal right direction as viewed in fig. 3, and an arrow direction as shown in an L portion in fig. 3.

The conveyor belt 2 is at least partially horizontally unfolded to form a spreading area 21 for spreading and airing tea leaves, and the subsequent tea leaf spreading and withering work is mainly performed on the spreading area 21, namely, the tea leaves are spread on the spreading area 21.

Along the first direction, as shown in fig. 2, one end of the spreading area 21 forms a feeding side 211, the other end forms a discharging side 212, and tea leaves can move along the feeding side 211 along with the conveying belt 2 to the discharging side 212; as shown in the view of fig. 2, the upper part of the left end of the spreading area 21 forms a feeding side 211, and the right end of the corresponding spreading area 21 forms a discharging side 212, specifically, the end of the conveyor belt 2 opposite to the feeding side is spaced from the frame 1 to form the discharging side 212.

During feeding, tea leaves are continuously poured into the spreading area 21 from the feeding side 211, meanwhile, the conveying belt 2 forwards conveys the tea leaves, so that the tea leaves are continuously moved to the discharging side 212 until the tea leaves travel to the position of the discharging side 212 to close the conveying belt 2, conveying is stopped, and feeding operation is completed; the tea leaves are spread on the spreading area 21 of the conveying belt 2, and the feeding is completed, so that the feeding mode of spreading the tea leaves is definitely more labor-saving and quicker than the traditional manual feeding mode.

When receiving, only need place the container that is used for accepting tealeaves in the unloading side 212 of spreading area 21, open conveyer belt 2 again, along with the progress of conveyer belt 2, the tealeaves of laying on the area 21 of spreading of conveyer belt 2 can remove along with the conveyer belt unloading side 212, finally falls from unloading side 212, falls into the container, and this mode is more convenient and laborsaving than current manual material receiving mode equally.

In order to accelerate the withering efficiency of the tea leaves, in this embodiment, as shown in fig. 2 and 3, a hollow space is enclosed inside the conveyor belt 2, a fan cover 3 is disposed in the hollow space, an upper end of the fan cover 3 is opened to form an open side, and the open side of the fan cover 3 faces the spreading area 21, in other words, the spreading area 21 is located right above the open side of the fan cover 3.

A plurality of air holes (not shown in the figure) are distributed on the belt surface of the conveying belt 2; the withering device further comprises a blowing mechanism for blowing hot air into the hood 3.

Through the arrangement, when tea feeding is completed and withering is performed, hot air is blown into the fan housing 3 through the air blowing mechanism, the hot air is blown out from the open side of the fan housing 3 under the guide flow of the fan housing 3, and is directly blown to the spreading area 21, and finally is discharged upwards from the air holes of the spreading area 21, so that the hot air discharged from the air holes contacts with tea leaves on the spreading area 21, and the withering efficiency of the tea leaves on the spreading area 21 can be quickened.

In addition, it should be noted that the fan housing 3 is disposed in the hollow space of the conveyor belt 2, so that the air guided out from the fan housing 3 can be directly blown toward the spreading area 21 of the conveyor belt 2, which corresponds to that the hot air only passes through one layer of the conveyor belt 2 (i.e., the spreading area 21); on the contrary, if the fan housing 3 is not disposed in the hollow space, but the fan housing 3 is directly disposed at the lower portion of the entire conveyor belt 2, at this time, the wind guided out of the fan housing 3 at least passes through the two layers of conveyor belts 2 during the upward blowing, which can increase the wind consumption.

As shown in fig. 2, the air blowing mechanism includes a fan (not shown in the drawing) and an electric heating element 41 installed at the air outlet position of the fan, the electric heating element 41 can be an electric heating tube, etc., an air outlet 32 is formed on the side wall of the fan housing 3 near the feeding side 211, and a fan blowing air into the fan housing 3 is installed in the air outlet 32; when passing through the electric heating element 41, the air blown by the fan is heated by the electric heating element 41 to form hot air, and then is blown into the fan housing 3.

In order to enable the hot air blown out by the air blowing mechanism to be discharged from each position of the spreading area 21 in the process of flowing along the first direction, in this embodiment, as shown in fig. 2 and 3, the bottom wall of the air cover 3 is obliquely arranged to serve as an air deflector 31, where the bottom wall of the air cover 3 refers to the wall of the air cover 3 on the side opposite to the opening side of the air cover, the air deflector 31 is gradually inclined upwards along the first direction, the air deflector 31 mainly plays a role of guiding the hot air, the hot air can flow along the air deflector 31 along the first direction, and because the air deflector 31 is obliquely arranged, an upward baffle occurs on the hot air deflector 31, and the heated air after the baffle can be blown upwards to the spreading area 21, so that the whole area of the spreading area 21 can be blown out by the design.

On the contrary, if the inclined air deflector 31 is not provided, the hot air is directly blown out horizontally to the right along the first direction, so that little or little hot air is blown out from the area of the spreading area 21 close to the feeding side 211, which is unfavorable for the uniformity of the whole tea withering.

In order to make the tea leaves on the spreading area 21 spread evenly during feeding, in this embodiment, the withering device further includes a spreading mechanism 5 for spreading the tea leaves, the spreading mechanism includes a rotating shaft 51 rotatably provided and a driving assembly for driving the rotating shaft 51 to rotate, and the rotating direction of the rotating shaft 51 is the same as the rotating direction of the conveying belt 2.

The rotating shaft 51 extends along the width direction of the conveying belt 2 and spans the upper part of the spreading area 21; a plurality of groups of deflector rods 53 are arranged on the rotating shaft 51 at uniform intervals along the axial direction, wherein each group of deflector rods 53 comprises a plurality of deflector rods 53 which are arranged at uniform intervals along the circumferential direction of the rotating shaft 51.

In the process of feeding, the conveyor belt 2 is started while advancing, the rotating shaft 51 is driven to rotate through the driving component, the deflector rod 53 is driven to rotate together, so that tea leaves can be pulled backwards by the deflector rod 53 when passing through the deflector rod 53 along with the conveyor belt 2, thick tea leaves stacked on the spreading area 21 can be blocked and pulled by the deflector rod 53, the tea leaves are spread to two sides, and finally the tea leaves can be uniformly spread on the spreading area 21.

In addition, in order to control the spreading thickness of the tea leaves in the spreading area 21, in this embodiment, the height of the rotating shaft 51 relative to the spreading area 21 is adjustable, for example, when the tea leaves need to be spread at a thick first point, the rotating shaft 51 can be adjusted to be a little higher, and then the height of the driving lever 53 is also adjusted to be higher along with the rotating shaft 51, so that finally the spread tea leaves are thicker.

In order to achieve the height adjustment of the rotating shaft 51, this embodiment provides a specific implementation, as shown in fig. 4, the spreading mechanism 5 further includes sliding components disposed at two sides of the frame 1, and the rotating shaft 51 is installed between the two sliding components; the sliding assembly comprises a sliding frame 541 arranged on the frame 1, a sliding seat 542 vertically arranged on the sliding frame 541 in a sliding manner, and an adjusting piece for driving the sliding seat 542 to vertically move for height adjustment, and the rotating shaft 51 is rotatably arranged on the sliding seat 542.

Wherein the adjusting member may employ a screw 543, specifically: the screw 543 is vertically disposed and is in threaded connection with the mounting frame, and the lower end of the screw 543 is rotatably connected with the sliding seat 542, so long as the screw 543 is rotated, the screw 543 can vertically move up and down, and further the sliding seat 542 is driven to move up and down, so that the rotating shaft 51 moves up and down along with the sliding seat 542, and the height of the rotating shaft 51 is adjusted.

In addition, since the rotation shaft 51 needs to be capable of being adjusted in height, in order to ensure that the driving assembly is in transmission connection with the rotation shaft 51 and does not interfere with the height adjustment of the rotation shaft 51, in this embodiment, the driving assembly includes a motor 52, a chain transmission is adopted between the motor 52 and the rotation shaft 51, the chain transmission refers to a manner that a chain and a chain wheel are matched to be in transmission connection, for example, the chain wheel is fixedly installed on a main shaft of the motor 52 and the rotation shaft 51 respectively, and a chain is sleeved between the two chain wheels, so that the power transmission between the motor 52 and the rotation shaft 51 can be realized by the chain.

In this way, the chain is loosened to ensure the normal height adjustment of the rotating shaft 51, and the chain wheel are meshed, so that even if the chain is loosened, the power transmission between the motor 52 and the rotating shaft 51 is not substantially affected, and the rotating shaft 51 can be ensured to be normally driven.

As an alternative embodiment, the mechanism of the driving assembly may also be that the main shaft of the motor 52 is fixed to the end of the rotating shaft 51, and the motor 52 is fixedly mounted on the sliding seat 542, so that the motor 52 and the sliding seat 542 can move synchronously, which can ensure the normal height adjustment of the rotating shaft 51.

The conveyor belt 2 in this embodiment is specifically configured as follows: as shown in fig. 2 and fig. 5, the conveyor belt 2 includes two driving chains 202 and a net 201 disposed on two sides of the frame 1 in the width direction, wherein the net 201 is preferably a spiral polyester dry net, and a great deal of description and application of the spiral polyester dry net in the prior art are omitted herein. The mesh body 201 forms the belt surface of the conveyor belt 2, and the mesh of the mesh body 201 is used as the aforementioned air holes.

A plurality of fixing strips 203 distributed along the circumference of the transmission chain 202 are fixed between the two transmission chains 202, and the net body 201 is in a closed-loop structure and is fixedly sleeved on the fixing strips 203. It is further understood that a plurality of driving sprockets 205 are disposed on the frame 1 corresponding to the two driving chains 202, and the driving chains 202 are sleeved on the driving sprockets 205, wherein at least one driving sprocket 205 is driven to rotate by the driving motor 204. Thus, the driving motor 204 drives the chain wheel 205 to drive the two driving chains 202 to synchronously rotate, and the net body 201 is fixed between the two driving chains 202 through the fixing strip 203, so that the net body 201 is pulled by the driving chains 202 to synchronously rotate, thereby realizing the transportation of tea leaves by the net body 201.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The tea withering device comprises a frame, and is characterized in that a conveying belt capable of conveying tea along a first direction is arranged on the frame, and a plurality of air holes are distributed on the belt surface of the conveying belt; the conveyor belt is at least partially horizontally unfolded to form a spreading area for spreading and airing tea leaves; along a first direction, one end of the spreading area forms a feeding side, and the other end forms a discharging side; the conveyor belt is internally surrounded to form a hollow space, a fan cover is arranged in the hollow space, the upper end of the fan cover is opened to form an open side, and the open side of the fan cover faces the spreading area; the withering device also comprises a blowing mechanism for blowing hot air into the fan housing.

2. A tea leaf withering apparatus according to claim 1 wherein the blower means is provided on a side wall of the hood adjacent the side of the feed side; the wind cover comprises a wind deflector which is arranged opposite to the open side of the wind cover, and the wind deflector gradually inclines upwards along a first direction.

3. A tea leaf withering apparatus as claimed in claim 1, further comprising a spreading mechanism for spreading the tea leaves, the spreading mechanism comprising a rotatably disposed shaft extending in the width direction of the conveyor belt and spanning the upper portion of the spreading area, and a drive assembly for driving the shaft to rotate; a plurality of deflector rod assemblies are arranged on the rotating shaft at intervals along the axial direction, and each group of deflector rod assemblies comprises a plurality of deflector rods which are arranged along the circumferential direction of the rotating shaft at intervals.

4. A tea leaf withering apparatus as claimed in claim 3 wherein the axis of rotation is height adjustable relative to the spreading area.

5. A tea leaf withering apparatus as claimed in claim 4 wherein the spreading mechanism further comprises sliding assemblies provided on either side of the frame, the shaft being mounted between the sliding assemblies; the sliding assembly comprises a sliding frame arranged on the frame, a sliding seat vertically arranged on the sliding frame in a sliding manner, and an adjusting piece for driving the sliding seat to vertically move for height adjustment, and the rotating shaft is rotatably arranged on the sliding seat.

6. A tea leaf withering device as claimed in claim 5 wherein the adjustment member comprises a screw rod which is vertically disposed and threadedly connected to the mounting frame, and the lower end of the screw rod is rotatably connected to the slide.

7. A tea leaf withering apparatus as claimed in any one of claims 4 to 6 wherein the drive assembly comprises a motor, the motor being driven by a chain from the shaft; or the main shaft of the motor is fixed with the end part of the rotating shaft, and the motor is fixedly arranged on the sliding seat.

8. A tea leaf withering apparatus as claimed in claim 1 wherein the air blowing means comprises a fan and an electric heating element mounted at the air outlet of the fan.

9. A tea leaf withering apparatus as claimed in claim 1 wherein the blanking side is formed by a spacing between one end of the conveyor belt opposite the feed side and the frame.

10. A tea leaf withering apparatus according to claim 1 wherein the conveyor belt comprises two drive chains and a net body disposed on either side of the frame in the width direction; a plurality of fixing strips distributed along the circumferential direction of the transmission chain are fixed between the two transmission chains, and the net body is in a closed-loop structure and is fixedly sleeved on the fixing strips.