CN111670974A - Rolling device suitable for needle-shaped tea preparation - Google Patents
Rolling device suitable for needle-shaped tea preparation Download PDFInfo
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- CN111670974A CN111670974A CN202010582689.9A CN202010582689A CN111670974A CN 111670974 A CN111670974 A CN 111670974A CN 202010582689 A CN202010582689 A CN 202010582689A CN 111670974 A CN111670974 A CN 111670974A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 211
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 241001122767 Theaceae Species 0.000 title claims abstract 9
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 47
- 238000007790 scraping Methods 0.000 claims description 44
- 230000008569 process Effects 0.000 claims description 32
- 238000007789 sealing Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 206010024796 Logorrhoea Diseases 0.000 abstract 1
- 244000269722 Thea sinensis Species 0.000 description 181
- 235000013616 tea Nutrition 0.000 description 180
- 238000004898 kneading Methods 0.000 description 55
- 238000010415 tidying Methods 0.000 description 21
- 238000004804 winding Methods 0.000 description 19
- 238000003825 pressing Methods 0.000 description 16
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- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
- A23F3/12—Rolling or shredding tea leaves
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Abstract
The invention relates to the technical field of tea production and processing, in particular to a rolling device suitable for needle-shaped tea preparation, which comprises a horizontally arranged hollow barrel, wherein a rotating shaft is arranged in the barrel, a rolling component is arranged on the rotating shaft, the rolling component comprises a connecting part and a rolling part, the connecting part is connected between the rolling part and the rotating shaft, one side of the rolling part is a feeding side and the other side of the rolling part is a discharging side in the circumferential direction around the barrel, the distance between the feeding side and the inner wall of the barrel is larger than the distance between the discharging side and the inner wall of the barrel, and a rolling cavity for rolling tea is formed between the feeding side and the inner wall of the barrel. The utility model provides a knead device makes the degree of intertwining between the tealeaves low or do not have the intertwining phenomenon, improves the tealeaves looks in the tea processing by a wide margin, has also reduced the garrulous leaf rate in the subsequent handling by a wide margin moreover, and it is extravagant to reduce tealeaves.
Description
Technical Field
The invention relates to the technical field of tea production and processing, in particular to a rolling device suitable for needle-shaped tea preparation.
Background
As a natural green beverage, the tea is a long-standing cultural tradition in China, and the Chinese green tea not only has the most famous products, but also has excellent quality, unique and elegant shape, and good artistic appreciation value, and is more and more popular with people.
In terms of tea production and processing processes, the tea production and processing processes mainly comprise the steps of picking, spreading and airing, deactivating enzymes, rolling, drying and the like, wherein after the tea is picked, the tea is spread and aired firstly, so that fresh leaves are radiated, grass air is volatilized, leaves are dehydrated and softened, and the water content of the tea is controlled to be about 70-75%; then carrying out a water-removing process, wherein the water-removing of the tea leaves is to inhibit the enzymatic oxidation of tea polyphenol and the like in the fresh tea leaves by destroying and passivating the oxidase activity in the fresh tea leaves at high temperature and evaporate partial water in the fresh tea leaves so as to soften the tea leaves, facilitate rolling and shaping, simultaneously disperse green odor and promote the formation of good aroma; after the tea leaves are completely de-enzymed, the rolling step is carried out, the tea leaves are rolled by the rolling device, so that tea leaf cells are crushed, tea juice is squeezed out, the tea juice is attached to the surface of the tea strips, the concentration of tea soup is increased, meanwhile, the viscosity is increased, the appearance of the tea leaves is favorably formed, and the tea leaves are in strip shapes after the rolling is finished; and then, tea leaf strip tidying is carried out, tea leaves are extruded by the extruding part while being in the strip tidying groove of the strip tidying machine, meanwhile, the strip tidying groove moves in a reciprocating mode relative to the extruding part, the heating device heats the strip tidying groove, so that the tea leaves are dried and shaped in the reciprocating mode, at the moment, the moisture content of the tea leaves is about 15-20%, and then the tea leaves are placed into the drying device to be dried, and the finished tea leaves are obtained.
In the further production process, the inventor finds that the current tea processing mode still has defects, such as the following:
in the current tea processing process, in order to ensure the production efficiency, mechanical processing is generally adopted in each step, wherein a kneading device mainly comprises a kneading disc, a kneading cylinder, a pressurizing cover and other components, tea is placed in the kneading cylinder, the kneading disc, the kneading cylinder and the pressurizing cover are matched together to knead the tea, and a plurality of arc-shaped ribs are arranged on the kneading disc to enable the tea to be formed into a roll in the kneading process. Although the rolling speed is high, in the rolling process, a large amount of tea leaves exist in the rolling channel between the adjacent arc-shaped ribs, and in the rolling process, the tea leaves are wound with each other, namely, the tea leaves of one tea leaf or all the tea leaves are wound in a roll formed by other tea leaves, so that after the rolling process is finished, the problem of mutual winding of the tea leaves often occurs, even a part of the tea leaves are agglomerated in serious cases, if the tea leaves enter the strip tidying device in the state, on one hand, the tea leaf phase is seriously influenced, on the other hand, the tea leaves are heated and dried in the strip tidying process, the mutually wound tea leaves are extremely easy to break, so that the leaf crushing rate is high, and a large amount of tea leaves are wasted while the tea leaf phase is further influenced.
In order to solve the problems, in the current production process, when the tea leaves are put into the tea strip tidying device, manual shaking and spreading are needed, or a vibration paving structure is arranged above the tea strip tidying device, and the tea leaves wound together are separated as much as possible through vibration of the manual or vibration paving structure, so that the tea leaves are not wound mutually as much as possible, the finished tea leaf phase is ensured, and the broken leaf rate is reduced. However, the labor intensity of workers is high by adopting a manual shaking and paving mode, the reliable scattering of the winding among the tea leaves is difficult to guarantee, the structural complexity of the strip tidying machine is increased by adopting a mode of arranging a vibrating and paving structure above the strip tidying machine, the equipment cost is increased, and the subsequent cleaning work of the strip tidying machine is greatly influenced.
Therefore, there is a need to design a tea leaf preparation device that can reduce the labor intensity of workers and ensure good processing quality of tea leaves.
Disclosure of Invention
The invention aims to: aiming at the defects that in the prior tea leaf preparation process, tea leaves are wound in the tea leaf rolling procedure, the labor intensity of workers is high and the broken leaf rate is high, the tea leaf preparation device capable of reducing the labor intensity of the workers and ensuring the good processing quality of the tea leaves is provided.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a knead and twist device suitable for aciculiform tea preparation, includes the cavity barrel that the level set up be provided with the shrouding at the both ends of barrel be provided with the revolving axle in the barrel, wherein one end of revolving axle pass the shrouding with drive arrangement outside the barrel links to each other be provided with on the revolving axle and knead the subassembly, it includes connecting part and knead the portion to knead the subassembly, connecting part connects knead portion with between the revolving axle, in the circumferencial direction around the barrel, one side of kneading the portion is the feed side, and the opposite side is the ejection of compact side, the feed side with the distance between the barrel inner wall is greater than the ejection of compact side with the distance between the barrel inner wall form the chamber of kneading tealeaves between the feed side with the barrel inner wall.
The utility model provides a knead and twist device, when using, in the barrel was arranged in to tealeaves after the deactivation of enzymes, start drive arrangement, the pivot gyration, in kneading the portion of twisting along with the pivot rotation in-process, tealeaves enters into the intracavity of kneading between portion of twisting and the barrel inner wall from the feed side, in kneading the further rotation in-process of portion of twisting, tealeaves is extruded by the gap between discharge side and barrel gradually under the friction action of dead weight and barrel inner wall, accomplish once to knead and twist, then get into next action of kneading and twist, so relapse, realize the process of kneading and twisting tealeaves, the distance of discharge side apart from the barrel inner wall ensures that tealeaves can receive sufficient pressure when passing through, this pressure corresponds with the required intensity of kneading and twisting of tealeaves, so, in the repeated extruded process of tealeaves, realize the kneading and twisting to tealeaves, adopt the device of this application, the barrel level is arranged, knead the portion of twisting and rotate the in-process and realize kneading and twist, the tea leaves are continuously pushed up in the vertical direction and then fall down when being kneaded, in the process, on one hand, the tea leaves are intermittently pressed, the number of the pressed tea leaves wound mutually is small, the winding degree is light, the winding is loose, furthermore, the wound tea leaves are not broken up in the processes of pushing up and falling, therefore, after the rolling step is finished, the mutual winding degree between the tea leaves is low or the mutual winding phenomenon does not exist by adopting the rolling device, thus, the workload of manual scattering and paving is greatly reduced, the problems that the cost of the device is increased and the cleaning difficulty of the strip tidying device is increased due to the arrangement of the vibration paving structure on the strip tidying device are also avoided, in addition, because the tea leaves are mutually scattered, the tea leaf appearance in the tea leaf processing is greatly improved, the leaf crushing rate in the subsequent procedures is also greatly reduced, and the tea leaf waste is reduced.
Preferably, the barrel comprises a scraping section, a rolling section and a feeding section, the scraping section is located at the bottom of the barrel, the feeding section is located at the upper half part of the barrel, a feeding hole for feeding tea leaves is formed in the feeding section, the lower end of the rolling section is connected with the scraping section, the upper end of the rolling section is connected with the feeding section, the rolling section is located behind the scraping section in the rotating direction of the rotating shaft, the rolling section firstly passes through the scraping section located at the bottom and then passes through the rolling section during rotation of the rolling part, the rolling cavity is formed between the rolling part and the rolling section, and the rolling part and the scraping section are in sliding fit or clearance fit. In the mode, the barrel is divided in the circumferential direction, the scraping section is positioned at the bottom, and the rolling section is positioned behind the scraping section, so that the bottom position of the barrel is avoided from being generated by the extruding and rolling action of the tea leaves, the problem that the tea leaves at the bottom of the barrel are seriously wound or even cake-shaped due to repeated extruding and rolling is avoided, in the mode, the extruding and rolling action of the tea leaves occurs in the rolling section, the tea leaves naturally fall after being extruded and rolled, and the tea leaves are mutually wound and scattered in the process, so that the effect of scattering the mutual winding among the tea leaves is further ensured; particularly, in the mode of this application, knead the portion at tealeaves once and knead the action back along with having promptly and break up the action, make the intertwine that appears between tealeaves like this can not form too closely, loose the compactness of the coiling that the mode formed is kneaded in the tradition far away, the fracture of being convoluteed tealeaves when reducing to break up on the one hand, further reduce the broken leaf rate, improve tealeaves quality, on the other hand, because tealeaves is constantly being broken up at the kneading in-process, form single strip more easily, can simplify subsequent reason strip process by a wide margin.
Preferably, the clearance between the discharge side of the rolling part and the scraping section is less than 2mm, and the clearance between the rolling part and the discharge side and the rolling section is 5-20 mm.
Preferably, the included angle between the connecting line from the lower end of the twisting section to the center of the rotating shaft and the straight line which vertically passes through the center of the rotating shaft downwards is A, and A is more than 10 degrees and less than 180 degrees.
As a preferred embodiment, A is 30 DEG or more and 90 DEG or less.
As another preferred embodiment, 90. ltoreq.A < 180 ℃.
Preferably, the cross section of the twisting section is in a shape of a variable diameter arc in a cross section perpendicular to the axis of the rotating shaft, and the curvature radius of the twisting section gradually decreases in a direction from the lower end to the upper end of the cross section, so that a gap between the twisting section and the twisting section gradually decreases when the twisting section passes through the twisting section.
Preferably, the distance between the discharge side of the twisting part and the inner wall of the lower end of the twisting section is 10-20mm, and the distance between the discharge side of the twisting part and the inner wall of the upper end of the twisting section is 5-10 mm.
Preferably, a plurality of arc-shaped grooves along the length direction are further arranged on the inner wall of the twisting section, and smooth transition connection is formed between every two adjacent arc-shaped grooves.
Preferably, the depth of the arc-shaped groove is 1-2mm, and the width of the arc-shaped groove is 2-4 mm.
Preferably, one side of the rolling part facing the inner wall of the barrel body is arc-shaped, and the rolling cavity is gradually reduced in the direction from the feeding side to the discharging side.
Preferably, the length of the twisting part along the length direction of the cylinder body is matched with the length of the cylinder body, and two ends of the twisting part along the length direction are respectively in clearance fit with the corresponding seal plates.
Preferably, a gap width between the twisting part and the cylinder is adjustable.
Preferably, the connecting member is adjustable in length.
Preferably, the connecting part comprises a connecting rod and a pressing rod, one end of the connecting rod is fixedly connected with the rotating shaft, the other end of the connecting rod is hinged with the twisting part, one end of the pressing rod connected with the connecting rod is hinged with the twisting part, the other end of the pressing rod is in sliding fit with the connecting rod, a locking device is arranged at the end part of the pressing rod matched with the connecting rod, and the locking device is used for locking the sliding connection between the connecting rod and the pressing rod.
Preferably, the pressing rod is an elastic member having elasticity. The elastic piece adopts a reed.
Preferably, the connecting parts are provided in number, and adjacent connecting parts are arranged at intervals.
Preferably, the distance between adjacent said connecting members is greater than 10 mm.
As a further preference, the distance between adjacent said connecting members is greater than 30 mm.
Preferably, the rolling assemblies are distributed in a plurality of numbers and are circumferentially and uniformly distributed in the circumferential direction around the rotating shaft.
Preferably, the width of the twisting part ensures that at least a part of the tea leaves twisted by the upper twisting unit falls into the twisting cavity of the lower twisting unit when the rotary shaft rotates. In the solution of the present application, the width of the rolling part matches the separation distance of the rolling assembly.
Preferably, the scraping section feeding section is hinged, and the other side of the scraping section feeding section is detachably connected with the rolling section.
Preferably, the scraping section is made of a heat conducting material, and a heating assembly for heating the scraping section is arranged on the outer wall of the scraping section.
Preferably, the drive device is further connected to a forward/reverse rotation control device for controlling a rotation direction of the rotary shaft.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides a knead and twist device, when using, in the barrel was arranged in to tealeaves after the deactivation of enzymes, start drive arrangement, the pivot gyration, in kneading the portion of twisting along with the pivot rotation in-process, tealeaves enters into the intracavity of kneading between portion of twisting and the barrel inner wall from the feed side, in kneading the further rotation in-process of portion of twisting, tealeaves is extruded by the gap between discharge side and barrel gradually under the friction action of dead weight and barrel inner wall, accomplish once to knead and twist, then get into next action of kneading and twist, so relapse, realize the process of kneading and twisting tealeaves, the distance of discharge side apart from the barrel inner wall ensures that tealeaves can receive sufficient pressure when passing through, this pressure corresponds with the required intensity of kneading and twisting of tealeaves, so, in the repeated extruded process of tealeaves, realize the kneading and twisting to tealeaves, adopt the device of this application, the barrel level is arranged, knead the portion of twisting and rotate the in-process and realize kneading and twist, the tea leaves are continuously pushed up in the vertical direction and then fall down when being kneaded, in the process, on one hand, the tea leaves are intermittently pressed, the number of the pressed tea leaves wound mutually is small, the winding degree is light, the winding is loose, furthermore, the wound tea leaves are not broken up in the processes of pushing up and falling, therefore, after the rolling step is finished, the mutual winding degree between the tea leaves is low or the mutual winding phenomenon does not exist by adopting the rolling device, thus, the workload of manual scattering and paving is greatly reduced, the problems that the cost of the device is increased and the cleaning difficulty of the strip tidying device is increased due to the arrangement of the vibration paving structure on the strip tidying device are also avoided, in addition, because the tea leaves are mutually dispersed, the tea leaf appearance in the tea leaf processing is greatly improved, the leaf crushing rate in the subsequent procedures is also greatly reduced, and the tea leaf waste is reduced;
dividing the barrel in the circumferential direction, wherein the scraping section is positioned at the bottom, and the rolling section is positioned behind the scraping section, so that the bottom position of the barrel is prevented from being generated by the extrusion rolling action of tea leaves, and the problem that the tea leaves at the bottom of the barrel are seriously wound or even cake-shaped due to repeated extrusion rolling is avoided;
in the mode of the application, after the tea leaves are kneaded by the primary kneading part, the tea leaves are loosened, so that the mutual winding among the tea leaves cannot be too tight and is far loose from the winding tightness formed by the traditional kneading mode, on one hand, the breakage of the wound tea leaves during the loosening is reduced, the leaf crushing rate is further reduced, the tea leaf quality is improved, on the other hand, as the tea leaves are continuously loosened in the kneading process, a single strip is more easily formed, and the subsequent strip tidying process can be greatly simplified;
the width of the gap between the rolling part and the barrel body is adjusted to different proper widths according to different processing procedures of tea leaves, and also can be adjusted to different proper widths according to different tea leaf varieties or variety requirements, so that the adaptability of the rolling device is greatly improved;
in the scheme of the application, the pressing rod is set to be the elastic part, the elastic part with a proper elastic coefficient can be selected, the situation that the tea leaves are damaged due to overlarge extrusion force applied by the rolling part is avoided, and the pressing rods with different elastic coefficients can be selected according to the tea leaves of different varieties or qualities so as to provide adaptive rolling and extrusion pressure degrees;
in the proposal of the application, the width of the rolling part is matched with the separation distance of the rolling component, in the tea rolling process, for a single rolling cavity, the interior of the single rolling cavity is filled with tea at the bottom of the barrel when the single rolling cavity passes through the scraping section, then the tea is rolled through the rolling section, the tea in the rolling cavity is gradually extruded out of the lower end of the rolling part, and the tea falling from the upper rolling part is continuously filled into the upper part of the rolling cavity, so on one hand, the rolling efficiency of the tea is improved, and on the other hand, the problem of poor rolling effect caused by less tea in the rolling cavity is avoided, furthermore, as the rolling cavity is gradually reduced when the rolling cavity passes through the rolling section, namely, when the rolling part moves to the rear section of the rolling section, the rolled tea is substantially the tea partially rolled and extruded at the front part of the rolling section, therefore, the tea part is further and more strongly rolled and extruded in fact, the rolling efficiency is further improved, meanwhile, the tea leaves obtained by rolling can be closer to the shape of finished tea leaves, and the subsequent strip tidying process is further simplified;
the scraping section is made of heat conducting materials, and a heating assembly used for heating the scraping section is arranged on the outer wall of the scraping section. The rolling device can greatly reduce the winding among the tea leaves, and can form a good strip tidying effect due to the special shapes and the matching of the rolling part and the rolling section, so that the heating assembly can be started after the tea leaves are rolled, a strip tidying procedure is carried out in the barrel, and the water content of the tea leaves is controlled at a proper level after the strip tidying is finished, so that tea leaf production equipment is greatly simplified, the equipment cost is greatly saved, and a large amount of labor is also saved;
and the driving device is also connected with a forward and reverse rotation control device, and the forward and reverse rotation control device is used for controlling the rotation direction of the rotating shaft. Through the forward and reverse rotation control device, when the rolling process is finished, the tea leaves in the rolling cavity can be poured out through the reverse rotation of the rotating shaft, so that the tea leaves in the rolling cavity are prevented from being left; when the tea strips are arranged, the rotating shaft is rotated reversely, and the tea leaves in the barrel are continuously turned to achieve the aim of integral drying, so that the rolling device can also be used for directly performing a drying process in the barrel, and further, tea leaf production equipment is simplified, equipment cost is saved, and a large amount of labor is further saved.
Drawings
FIG. 1 is a schematic view of a rolling device according to one embodiment;
FIG. 2 is a schematic structural view of the kneading device when the kneading segment is provided with the arc-shaped groove;
FIG. 3 is a schematic view of the structure of the twisting part engaged with the connecting rod;
FIG. 4 is a schematic structural view of the kneading device with the length of the connecting rod adjustable,
the following are marked in the figure: 1-barrel, 2-closing plate, 3-rotating shaft, 4-driving device, 5-rolling part, 6-connecting rod, 7-pressure rod, 8-rolling cavity, 9-feeding side, 10-discharging side, 11-scraping section, 12-rolling section, 13-feeding section, 14-feeding hole, 15-arc groove and 16-heating component.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments, but it should not be construed that the scope of the above-described subject matter of the present invention is limited to the following examples, and that techniques realized based on the contents of the present invention are within the scope of the present invention.
Example 1, as shown in figures 1-4:
a rolling device suitable for needle-shaped tea preparation comprises a horizontally arranged hollow cylinder body 1, sealing plates 2 are arranged at two ends of the cylinder body 1, a rotating shaft 3 is arranged in the cylinder body 1, one end of the rotating shaft 3 passes through the sealing plate 2 to be connected with a driving device 4 outside the cylinder body 1, a twisting unit is provided on the rotation shaft 3, the twisting unit including a connecting member and a twisting part 5, the connecting member being connected between the twisting part 5 and the rotation shaft 3, in the circumferential direction around the cylinder 1, one side of the rolling part 5 is a feeding side 9, the other side is a discharging side 10, the distance between the feeding side 9 and the inner wall of the cylinder 1 is larger than the distance between the discharging side 10 and the inner wall of the cylinder 1, a rolling cavity 8 for rolling the tea leaves is formed between the feeding side 9 and the inner wall of the barrel body 1.
The rolling device comprises a barrel 1, a driving device 4, a rotating shaft 3, a rolling part 5, a feeding side 9, a rolling cavity 8 between the rolling part 5 and the inner wall of the barrel 1, a rolling part 5, a discharging side 10, a barrel 1 and a rolling part, wherein the rolling part 5 rotates along with the rotating shaft 3, the tea is gradually extruded from a gap between the discharging side 10 and the barrel 1 under the friction action of the self weight and the inner wall of the barrel 1, one-time rolling is completed, then the next rolling action is performed, the rolling operation is repeated, the rolling operation of the tea is realized, the distance from the discharging side 10 to the inner wall of the barrel 1 ensures that the tea can be subjected to enough pressure when passing, the pressure corresponds to the required rolling strength of the tea, and the rolling operation of the tea is realized in the repeated extrusion process of the tea, and the rolling device is adopted, the barrel body 1 is horizontally arranged, the rolling part 5 realizes rolling in the rotating process, tea leaves are continuously pushed up in the vertical direction and then fall down when being rolled, in the process, on one hand, the tea leaves are intermittently pressed, the pressed quantity of the tea leaves wound mutually is less, the winding degree is also lower, the tea leaves wound together are loose, and further, the tea leaves wound together are not broken and scattered in the pushing up and falling processes, so the rolling device of the application is adopted, after the rolling step is completed, the mutual winding degree between the tea leaves is low or the mutual winding phenomenon does not exist, thus the workload of manually scattering and spreading is greatly reduced, the problems that the device cost is increased and the cleaning difficulty of a strip arranging device is increased due to the arrangement of a vibration spreading structure on the strip arranging device are avoided, in addition, the tea leaves are mutually dispersed, the tea leaf quality in the tea leaf processing is greatly improved, and the leaf crushing rate in the subsequent process is also greatly reduced, the waste of tea leaves is reduced.
As a preferred embodiment, further to the above, the barrel 1 comprises a scraping section 11, a kneading section 12 and a feeding section 13, the scraping section 11 is positioned at the bottom of the cylinder body 1, the feeding section 13 is positioned at the upper half part of the cylinder body 1, the feeding section 13 is provided with a feeding hole 14 for feeding tea leaves, the lower end of the rolling section 12 is connected with the scraping section 11, the upper end of the rolling section 12 is connected with the feeding section 13, in the rotating direction of the rotating shaft 3, the rolling section 12 is located behind the scraping section 11, so that the rolling part 5 passes through the scraping section 11 at the bottom and then the rolling section 12, the twisting cavity 8 is formed between the twisting part 5 and the twisting section 12, and the twisting part 5 and the scraping section 11 are in sliding fit or clearance fit. In this way, firstly, the bottom position of the barrel body 1 is avoided from generating by the extrusion kneading action of the tea leaves, and the problem that the tea leaves at the bottom of the barrel body 1 are seriously wound or even cake-shaped due to repeated extrusion kneading is avoided, in this way, the extrusion and kneading actions of the tea leaves occur in the kneading section 12, the tea leaves naturally fall after being extruded and kneaded, and in this way, the tea leaves are mutually wound and scattered, and thus, the effect of scattering the mutual winding among the tea leaves is further ensured; particularly, in the mode of this application, knead portion 5 at tealeaves once and knead the action back along with having promptly and break up the action, make the intertwine that appears between tealeaves like this can not form too closely, loose the compactness of the coiling that the mode formed is kneaded in the tradition far away, the fracture of being convoluteed tealeaves when reducing to break up on the one hand, further reduce the broken leaf rate, improve tealeaves quality, on the other hand, because tealeaves is constantly being broken up at the kneading in-process, form single strip more easily, can simplify subsequent reason strip process by a wide margin.
In a preferred embodiment, in addition to the above-mentioned embodiment, a gap between the discharge side 10 of the rolling portion 5 and the scraping section 11 is less than 2mm, and a gap between the rolling portion 5 and the discharge side 10 and the rolling section 12 is 5 to 20 mm. The play between the delivery side 10 of kneading portion 5 and scraping section 11 is less than 2mm, this width can ensure to knead portion 5 and smoothly rotate, by can avoiding tealeaves to pass through from this clearance, so, make to knead portion 5 when scraping section 11, can be with scraping the tealeaves of section 11 bottom, when avoiding barrel 1 bottom tealeaves to become cake, also realize stirring of a section of thick bamboo interior tealeaves, further realize good effect of breaking up, knead portion 5 and delivery side 10 and knead the clearance 5-20mm between the section 12, make to knead portion 5 when kneading section 12, knead portion 5 and knead the tealeaves of kneading between section 12 and can be given sufficient pressure of kneading.
In a preferred embodiment, in addition to the above-mentioned manner, a line connecting the lower end of the twisting segment 12 to the center of the rotation shaft 3 forms an angle a with a straight line vertically downward passing through the center of the rotation shaft 3, wherein the angle a is 10 ° < a < 180 °. Set up contained angle A to this scope, just through rolling section 12 after making tealeaves pushed up a take the altitude by rolling portion 5, ensure that the tealeaves after being rolled can free fall, and then realize the quilt of convoluteing tealeaves each other and break up.
As a preferred embodiment, A is 30 DEG or more and 90 DEG or less. When contained angle A set up to this scope, make tealeaves pile up in ejection of compact side 10 top under 8 inherent dead weight states in kneading the chamber on the one hand, at 5 rotation in-process of kneading the portion of twisting, extrude by ejection of compact side 10 more easily, improve and knead efficiency, moreover, in this angle within range, extrude tealeaves and have had higher whereabouts height, do benefit to the scattering between the tealeaves of coiling each other.
As another preferred embodiment, 90. ltoreq.A < 180 ℃. When contained angle A sets up to this scope, the tealeaves after being kneaded has higher whereabouts height, and after falling down clashes mutually with pivoted adapting unit mutually, so further reduced the degree of convoluteing each other between tealeaves, moreover, because in this angle scope, it is not serious to knead tealeaves in 8 chambers under the dead weight effect, so the quantity of convoluteing each other that appears when being kneaded and the degree of convoluteing also lighter, so, has also further reduced the broken leaf rate in the tealeaves preparation process.
Further preferably, the cross-sectional shape of the rolling section 12 is a variable diameter arc shape in a cross-section perpendicular to the axis of the rotation shaft 3, and the curvature radius of the rolling section 12 is gradually reduced in a direction from the lower end to the upper end thereof, so that the gap between the rolling section 5 and the rolling section 12 is gradually reduced when the rolling section 5 passes through the rolling section 12. In the rotation process of the rolling part 5, tea leaves in the rolling part are gradually rolled and extruded, so that in the scheme of the application, the curvature radius of the rolling section 12 is gradually reduced from bottom to top, the rolling part 5 can gradually reduce the clearance between the rolling section 12 and the tea leaves when passing through the rolling section 12, and thus, the tea leaves in the rolling cavity 8 can be smoothly rolled and extruded, and the enough rolling force is ensured.
Further preferably, the distance between the discharging side 10 of the rolling part 5 and the inner wall of the lower end of the rolling section 12 is 10-20mm, and the distance between the discharging side 10 of the rolling part 5 and the inner wall of the upper end of the rolling section 12 is 5-10 mm.
In a preferred embodiment, in addition to the above-mentioned manner, as shown in fig. 2, a plurality of arc-shaped grooves 15 are further disposed on the inner wall of the twisting segment 12 along the length direction, and between each arc-shaped groove 15, adjacent arc-shaped grooves 15 are connected in a smooth transition manner. Through setting up long banding recess 15, more do benefit to tealeaves and knead into the strip, simplify follow-up reason strip process.
As a preferred embodiment, further based on the above manner, the depth of the arc-shaped groove 15 is 1-2mm, and the width of the arc-shaped groove 15 is 2-4 mm. By adopting the depth, the tea can be formed into strips, and the problem that single tea cannot move along with the twisting part 5 because the single tea is too much sunk into the groove 15 is avoided.
In a preferred embodiment, in addition to the above-mentioned embodiment, the kneading part 5 has an arc shape on the side facing the inner wall of the cylinder 1, and the kneading chamber 8 is gradually reduced in the direction from the feeding side 9 to the discharging side 10. With the structure of the kneading cavity 8 with the shape, the tea leaves in the kneading cavity 8 can be smoothly and gradually squeezed out of the kneading cavity 8 along with the movement of the kneading part 5 in the kneading segment 12.
In a preferred embodiment, in addition to the above-described embodiment, the length of the rolling portion 5 in the longitudinal direction of the cylindrical body 1 is matched to the length of the cylindrical body 1, and both ends of the rolling portion 5 in the longitudinal direction are respectively fitted to the corresponding sealing plates 2 with a clearance. This ensures that the tea leaves in the entire barrel 1 can act uniformly on the rolling part 5.
In a preferred embodiment, in addition to the above-described embodiment, a gap width between the twisting part 5 and the cylindrical body 1 is adjustable. Through adjusting the clearance width between rolling portion 5 and the barrel 1, can adjust to different suitable width according to the different manufacturing procedure of tealeaves, also can require to adjust to different suitable width according to different tealeaves varieties or variety, improve the adaptability of rolling the device by a wide margin.
Preferably, the connecting member is adjustable in length. Thus, the adjustment of the distance between the twisting part 5 and the twisting section 12 is further facilitated.
As a preferable embodiment, in addition to the above-mentioned embodiment, the connecting member includes a connecting rod 6 and a pressing rod 7, one end of the connecting rod 6 is fixedly connected to the rotating shaft 3, the other end of the connecting rod is hinged to the twisting part 5, one end of the pressing rod 7 is connected to the twisting part 5, the other end of the pressing rod 7 is in sliding fit with the connecting rod 6, and a locking device is provided at the end of the pressing rod 7 that is in fit with the connecting rod 6, and the locking device is used for locking the sliding connection between the connecting rod 6 and the pressing rod 7. The distance width between the twisting part 5 and the twisting section 12 is adjusted by the position of the sliding pressure rod 7 on the connecting rod 6, and when the required width is reached, the sliding between the pressure rod 7 and the connecting rod 6 can be locked by the locking device.
In a preferred embodiment, in addition to the above-mentioned embodiment, the pressing rod 7 is an elastic member having elasticity. The elastic element can adopt an elastic structure such as a reed. The pressing rod 7 is set to be an elastic part, the elastic part with a proper elastic coefficient can be selected, the situation that tea leaves are damaged due to overlarge extrusion force applied by the rolling part 5 is avoided, and the pressing rod 7 with different elastic coefficients can be selected according to different tea leaves of different varieties or different qualities, so that the rolling and extruding pressure degrees which are matched with each other are provided.
In a preferred embodiment, in addition to the above-described aspect, the number of the connecting members is plural, and the adjacent connecting members are spaced apart from each other. Adopt this kind of mode, at first ensure stability and the reliability of connecting, moreover, it is only strange after the subassembly rotation process is kneaded, adapting unit bumps the tealeaves of barrel 1, further improvement to the effect of breaing up of convoluteing tealeaves each other.
As a preferable embodiment, in addition to the above, a distance between adjacent connecting members is greater than or equal to 10 mm. The more connecting portion set up, the better to the effect of raveling up coiling between tealeaves, but the distance undersize between the connecting portion, for example when the concatenation formed platelike, the tealeaves that falls down can again slide along the plate that connecting portion formed, and the effect of breaing up reduces by a wide margin, so, in this embodiment, adopt this size, ensure good effect of breaing up.
As a further preference, the distance between adjacent said connecting members is greater than 30 mm. For certain tea leaves with larger single size, the larger distance can be adopted between the connecting parts to ensure good scattering effect.
As a preferred embodiment, in addition to the above, the rolling members are provided in plural numbers, and are circumferentially and uniformly distributed in the circumferential direction around the rotation shaft 3. The rolling components are a plurality of, firstly, the rolling efficiency can be greatly improved, and the scattering effect of the tea leaves is greatly improved, particularly, a plurality of rolling components are adopted, when the tea leaves are extruded and fall down by the rolling part 5, the tea leaves collide with the connecting part below, the mutually wound tea leaves are scattered or loosened by collision, and therefore the winding degree of the tea leaves is further reduced.
In a preferred embodiment, in addition to the above-mentioned embodiment, the width of the rolling part 5 is such that at least a part of the tea leaves rolled by the upper rolling unit falls into the rolling chamber 8 of the lower rolling unit when the rotary shaft 3 rotates. In the scheme of the application, the width of the rolling part 5 is matched with the separation distance of the rolling component, in the tea rolling process, for a single rolling cavity 8, when the tea passes through the scraping section 11, the inner part of the rolling cavity is filled with the tea at the bottom of the barrel 1, then the tea is rolled through the rolling section 12, the tea in the rolling cavity 8 is gradually extruded out of the lower end of the rolling part 5, and the tea falling from the upper rolling part 5 is continuously added into the upper part of the rolling cavity 8, so that on one hand, the rolling efficiency of the tea is improved, on the other hand, the problem of poor rolling effect caused by less tea in the rolling cavity 8 is also avoided, further, because the rolling cavity 8 is gradually reduced when the rolling cavity 8 passes through the rolling section 12, namely, when the rolling part 5 moves to the rear section of the rolling section 12, the rolled tea is substantially the tea extruded from the front part of the rolling section 12, so, to this part tealeaves carry out further stronger extrusion of kneading and entwisting in fact, when further improving and knead efficiency, also make to knead and obtain tealeaves and can more press close to with finished product tealeaves shape, and then further simplify subsequent reason strip process.
In a preferred embodiment, in addition to the above-mentioned manner, the feeding section 13 of the scraping section 11 is hinged, and the other side is detachably connected to the twisting section 12. Through such a mode, after the tealeaves is kneaded and is accomplished in barrel 1, open scraping section 11, can lift off the tealeaves in barrel 1, operation process is simple and convenient.
In a preferred embodiment, in addition to the above manner, the scraping section 11 is made of a heat conducting material, and a heating assembly 16 for heating the scraping section 11 is disposed on an outer wall of the scraping section 11. Owing to adopt the device of kneading of this application, can reduce the coiling between tealeaves by a wide margin to owing to knead portion 5 and knead the special shape and the cooperation of section 12, can form good reason strip effect, so, adopt the device of kneading of this application, can knead the completion back at tealeaves, start heating element 16, carry out reason strip process in barrel 1, after the reason strip is accomplished, with tealeaves moisture content control at suitable level, so simplified tealeaves production facility by a wide margin, the equipment cost has been practiced thrift by a wide margin, also practiced thrift a large amount of manual works.
In a preferred embodiment, in addition to the above-described embodiment, a forward/reverse rotation control device for controlling the rotation direction of the rotary shaft 3 is further connected to the drive device 4. Through the forward and reverse rotation control device, when the rolling process is finished, the tea leaves in the rolling cavity 8 can be poured out through the reverse rotation of the rotating shaft 3, so that the tea leaves in the rolling cavity 8 are prevented from being left; when the tea strips are arranged, the rotary shaft 3 is reversely rotated to continuously turn the tea leaves in the barrel body 1, so that the aim of integrally drying the tea leaves is fulfilled.
The above embodiments are only used for illustrating the invention and not for limiting the technical solutions described in the invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement of the present invention is made; all such modifications and variations are intended to be included herein within the scope of this disclosure and the appended claims.
Claims (10)
1. A rolling device suitable for needle-shaped tea preparation is characterized in that: the tea leaf rolling machine comprises a hollow barrel body which is horizontally arranged, sealing plates are arranged at two ends of the barrel body, a rotating shaft is arranged in the barrel body, one end of the rotating shaft penetrates through the sealing plates to be connected with a driving device outside the barrel body, a rolling component is arranged on the rotating shaft and comprises a connecting component and a rolling part, the connecting component is connected between the rolling part and the rotating shaft, one side of the rolling part is a feeding side and the other side of the rolling part is a discharging side in the circumferential direction of the barrel body, the distance between the feeding side and the inner wall of the barrel body is larger than the distance between the discharging side and the inner wall of the barrel body, and a rolling cavity for rolling tea leaves is formed between the feeding side and the inner wall of the barrel body.
2. The rolling apparatus according to claim 1, wherein: the barrel comprises a scraping section, a rolling section and a feeding section, the scraping section is located at the bottom of the barrel, the feeding section is located at the upper half part of the barrel, a feeding hole for feeding tea is formed in the feeding section, the lower end of the rolling section is connected with the scraping section, the upper end of the rolling section is connected with the feeding section, the rolling section is located behind the scraping section in the rotating direction of the rotating shaft, the rolling section firstly passes through the scraping section located at the bottom and then passes through the rolling section in the rotating process of the rolling part, a rolling cavity is formed between the rolling part and the rolling section, and the rolling part and the scraping section are in sliding fit or clearance fit.
3. The rolling apparatus according to claim 2, wherein: the clearance between the discharge side of the twisting part and the scraping section is smaller than 2mm, and the clearance between the twisting part and the discharge side and the twisting section is 5-20 mm.
4. A rolling apparatus according to claim 3, wherein: the included angle between the connecting line from the lower end of the twisting section to the center of the rotating shaft and the straight line which vertically passes through the center of the rotating shaft downwards is A, and A is more than 10 degrees and less than 180 degrees.
5. The rolling apparatus according to claim 4, wherein: a is more than or equal to 30 degrees and less than or equal to 90 degrees.
6. The rolling apparatus according to claim 4, wherein: a is more than or equal to 90 degrees and less than 180 degrees.
7. Rolling apparatus according to any one of claims 2-6, characterized in that: on the cross section vertical to the axis of the rotating shaft, the cross section of the twisting section is in a reducing arc shape, the curvature radius of the twisting section is gradually reduced along the direction from the lower end to the upper end of the twisting section, so that when the twisting part passes through the twisting section, the clearance between the twisting part and the twisting section is gradually reduced.
8. The rolling apparatus of claim 7, wherein: the distance between the discharge side of the twisting part and the inner wall of the lower end of the twisting section is 10-20mm, and the distance between the discharge side of the twisting part and the inner wall of the upper end of the twisting section is 5-10 mm.
9. The rolling apparatus of claim 7, wherein: the inner wall of the twisting section is also provided with a plurality of arc grooves along the length direction, and between the arc grooves, adjacent arc grooves are in smooth transition connection.
10. The rolling apparatus of claim 7, wherein: one side of the rolling part facing the inner wall of the barrel body is arc-shaped, and the rolling cavity is gradually reduced in the direction from the feeding side to the discharging side.
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| CN202010582689.9A CN111670974B (en) | 2020-06-23 | 2020-06-23 | Rolling device suitable for needle-shaped tea preparation |
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| CN202010582689.9A CN111670974B (en) | 2020-06-23 | 2020-06-23 | Rolling device suitable for needle-shaped tea preparation |
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| CN115644276A (en) * | 2022-11-15 | 2023-01-31 | 重庆市农业科学院 | Efficient and accurate processing method of needle-shaped tea |
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