CN218921496U

CN218921496U - Intelligent tea rolling machine based on machine vision

Info

Publication number: CN218921496U
Application number: CN202222961159.2U
Authority: CN
Inventors: 滑金杰; 袁海波; 江用文; 沈帅; 邓余良; 王近近
Original assignee: Tea Research Institute Chinese Academy of Agricultural Sciences
Current assignee: Tea Research Institute Chinese Academy of Agricultural Sciences
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-04-28
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses an intelligent tea rolling machine based on machine vision, which comprises a support frame and a rolling device arranged on the support frame, wherein the rolling device comprises a rolling cover, a rolling barrel, a rolling disc, a rolling barrel rotation driving device and a lifting structure; the intelligent control system also comprises a machine vision device, a temperature and humidity regulation facility, an oxygen precise control device and an intelligent control central control device; the machine vision device is arranged on the rolling machine, so that real-time snapshot and quick response to the three-dimensional space of the product are realized, and the definition of the photo is improved; the rolling temperature and humidity regulation facility and the oxygen precise control device are connected with one side of the rolling barrel, oxygen control realizes precise and uniform regulation of oxygen in rolling operation through double oxygen supply from bottom to top and from top to bottom, and the tunnel type temperature and humidity control system realizes precise regulation of heating, refrigerating, dehumidifying, humidifying and the like. The utility model discloses a visualization of rolling state, technical parameter's accurate regulation and control of digit improves the banding effect of tealeaves by a wide margin, rolls efficiency and quality and promotes greatly.

Description

Intelligent tea rolling machine based on machine vision

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to an intelligent tea rolling machine based on machine vision.

Background

Tea is the second largest beverage which is inferior to water in the world, and according to the processing technology, the tea in China can be classified into six kinds of tea such as green tea, black tea, oolong tea, black tea, white tea, yellow tea and the like. The rolling is used as an important process for processing each tea, on one hand, the rolling tightens tea strips, reduces the volume, lays a foundation for attractive appearance of tea leaves, on the other hand, the leaf tissue is properly destroyed, the overflow of tea juice and the brewing of the tea leaves are facilitated, meanwhile, the contact probability of a substrate for biological reaction in the leaves is increased, and the foundation is a typical foundation for the formation of quality components. The grasping of the degree of the twisting technology has important significance on the appearance quality of the tea, aroma, taste, color and other internal quality. Most of rolling machines used in the tea production at the present stage are of single type, and part of rolling machines are of multiple continuous operations, but only the technical parameters such as rolling time, frequency, down-pressure height and the like are regulated and controlled, and the conditions such as temperature, relative humidity, oxygen and the like which have important influences on the tea quality formation are not regulated and controlled.

The judgment of the rolling degree still depends on subjective experience of a tea master, the rolling degree is manually judged through the color, the tight knot degree and the like of tea strips scattered on a rolling disc, the subjective fluctuation is large, the judgment standards of different masters are different, the judgment of the rolling degree can be fluctuated and deviated due to different time points, weather, mood and the like even the same master, the rolling quality, the uniformity and the stability of the tea quality are difficult to realize, and the digital level of tea production and the high-quality development of industry are seriously restricted. Therefore, there is an urgent need to develop an intelligent tea rolling machine, which can accurately regulate and control parameters such as rolling temperature, humidity, gas, pressure, time, frequency, and the like, separate from subjective judgment of tea-making master, display the states of tea such as rolling leaf color, texture, strip rope, and the like in real time, realize online judgment of the degree of rolling of tea leaves, and realize feedback regulation and control on rolling parameters based on the judgment result, so as to solve the technical problem of 'looking at tea as tea' in tea production, and realize intelligent control of rolling quality and stability of product quality.

At present, development and research on intelligent tea rolling machines on the market are less, and an utility model patent ZL201310243818.1 discloses a black tea rolling degree judging method based on cell breakage rate and electrical characteristics.

Disclosure of Invention

The utility model aims to provide an intelligent tea rolling machine based on machine vision, which is used for solving the technical problem of 'seeing tea as tea' by artificial experience.

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

an intelligent tea rolling machine based on machine vision comprises a support frame and a rolling device arranged on the support frame, wherein the rolling device comprises a rolling cover, a rolling barrel, a rolling disc, a rolling barrel rotation driving device and a lifting structure; the upper part of the rolling barrel is movably connected with a rolling cover, the rolling barrel rotation driving device is connected with the rolling barrel, and the lifting structure is connected with the rolling barrel rotation driving device and the rolling cover;

the rolling machine also comprises a machine vision device, a rolling temperature and humidity regulation facility and a central control device of the intelligent rolling machine; the machine vision device is arranged on the rolling machine, and the rolling temperature and humidity control device is connected with one side of the rolling barrel.

The rolling cylinder rotation driving device comprises three cranks and three connecting arms; the connecting arms comprise a first connecting arm, a second connecting arm and a third connecting arm, the inner side end parts of the three cranks are in pin joint fit with the three connecting arms fixedly arranged on the side face of the twisting barrel, the outer side end parts of the three cranks are in pin joint fit with the outer edge top end parts of the twisting tea tray, and a tripod is fixedly connected above the three connecting arms.

The lifting structure comprises a lifting rod, a connecting seat and a pressurizing rod, wherein the lifting rod is fixedly connected with the surface of the third connecting arm, the connecting seat is sleeved at the top of the lifting rod, the pressurizing rod comprises a first pressurizing rod and a second pressurizing rod, the first pressurizing rod is fixedly connected with the outer surface of the connecting seat, the other end of the first pressurizing rod is fixedly connected with one end of the second pressurizing rod, and the second pressurizing rod is hollow and is fixedly connected with the middle of the rolling cover.

The temperature and humidity control device comprises a temperature and humidity probe and a tunnel type temperature and humidity control device, wherein the temperature and humidity probe is arranged inside a rolling barrel, a first inlet is formed in one side of the rolling barrel, and the tunnel type temperature and humidity control device is connected with the first inlet through a pipeline.

The surface of the rolling disc is uniformly provided with wheel bones along the circumferential direction of the rolling disc, a second oxygen supply hole is formed in the middle of the rolling cover, the second oxygen supply hole is connected with an oxygen generator, a first oxygen supply hole is uniformly formed in the wheel bones, and the first oxygen supply hole is connected with the oxygen generator.

The machine vision device comprises a CCD industrial camera image collector and a light supplementing module, and the CCD industrial camera image collector is arranged on the rolling machine; the light supplementing module comprises a light supplementing device.

The CCD industrial camera image collector is respectively arranged on the rolling disc, the rolling cover and the rolling barrel, a first round hole, a second round hole and a third round hole are respectively formed in the rolling disc, the rolling cover and the rolling barrel, the CCD industrial camera image collector is respectively arranged on the first round hole, the second round hole and the third round hole, and the inside of the first round hole, the second round hole and the inside of the third round hole are filled with organic glass.

The intelligent tea rolling machine based on machine vision has the beneficial effects that:

1. the device comprises a CCD industrial camera image collector to realize real-time state visualization, and meanwhile, continuous and batch rolling operation can be realized through matching an oblique leaf feeding device, an electronic weighing device, a tea conveying device, a vibration discharging device and the like, so that the device is suitable for industrial production of tea.

2. Based on the double settings of the miniature oxygen supply hole on the rolling disc wheel bone and the oxygen supply hole on the rolling cover, the double oxygen supply from bottom to top is formed when the rolling machine is rolled. The CCD industrial camera image collector is added in the three positions of the rolling disc, the rolling cover, the rolling barrel and the like, achieves real-time snapshot and quick response of the three-dimensional space of the rolled product, improves the definition and accuracy of the photo, greatly improves the rolling process of the tea and the strip forming effect of the tea, and greatly improves the rolling efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a diagram showing the whole structure of an intelligent tea rolling machine based on machine vision;

figure 2 is a diagram of the structure of the rolling disc in the present utility model;

figure 3 is an overall construction diagram of the twisting system according to the utility model;

fig. 4 is a photograph (0 min, 15min, 30min, 45min, 60min, 75 min) taken in real time of the state of the rolling leaves of the machine vision device of the present utility model.

Detailed Description

The following examples are given for more clearly illustrating the technical solution of the present utility model, and therefore are only exemplary and not intended to limit the scope of the present utility model.

As shown in fig. 1 and 2, an intelligent tea rolling machine based on machine vision comprises a support frame and a rolling device arranged on the support frame, wherein the support frame comprises three support columns 1, the lower parts of every two support columns 1 are fixedly connected through a support cross beam 2, and support blocks 101 are fixed on the side surfaces of the support columns 1; the rolling device comprises a rolling cover 3, a rolling barrel 4, a rolling disc 5, a rolling tea tray outer edge table 6, a rolling barrel rotation driving device 7 and a lifting structure 8; wheel bones 501 are uniformly arranged on the surface of the rolling disc 5 along the circumferential direction, a lower leaf opening 503 is arranged in the middle of the rolling disc 5, and a first round hole 504 is formed in the rolling disc; the outer edge table 6 of the rolling disc is fixedly connected to the outer surface of the rolling disc 5, the outer edge table 6 of the rolling tea disc is respectively and fixedly connected above the three support columns 1, the rolling cover 3 can be movably connected above the rolling barrel 4, the rolling barrel rotation driving device 7 is connected with the rolling barrel 4 and the outer edge table 6 of the rolling tea disc, and the lifting structure 8 is connected with the rolling barrel rotation driving device 7 and the rolling cover 3;

the rolling barrel rotation driving device 7 comprises three cranks 701 and three connecting arms; the connecting arms comprise a first connecting arm 702, a second connecting arm 703 and a third connecting arm 704, the inner side end parts of the three cranks 701 are in pivot joint with the three connecting arms fixedly mounted on the side face of the twisting barrel 4, the outer side end parts of the three cranks 701 are in pivot joint with the top end parts of the outer edge table 6 of the twisting tea tray, and a tripod 705 is fixedly connected above the three connecting arms.

The lifting structure 8 comprises a lifting rod 801, a connecting seat 802 and a pressurizing rod, wherein the lifting rod 801 is fixedly connected with the surface of the third connecting arm 704, the connecting seat 802 is sleeved at the top of the lifting rod 801, the pressurizing rod comprises a first pressurizing rod 803 and a second pressurizing rod 804, the first pressurizing rod 803 is fixedly connected with the outer surface of the connecting seat 802, the other end of the first pressurizing rod 803 is fixedly connected with one end of the second pressurizing rod 804, the second pressurizing rod 804 is hollow and the other end of the second pressurizing rod 804 is fixedly connected with the middle of the rolling cover 3, the middle of the rolling cover 3 is also provided with a second oxygen supply hole 301, the second oxygen supply hole 301 is connected with the oxygen generator 9, the wheel bone 501 is uniformly provided with a first oxygen supply hole 502, and the first oxygen supply hole 502 is connected with the oxygen generator 9.

The rolling machine also comprises a machine vision device, a rolling temperature and humidity regulation facility and an intelligent control rolling machine central control device 11; the machine vision device is arranged on the rolling machine and is used for shooting and collecting pictures of rolled tea leaves in real time, the rolling temperature and humidity regulation facility comprises a temperature and humidity probe and a tunnel type temperature and humidity control device 10, the temperature and humidity probe is arranged inside the rolling barrel 4, a first inlet is formed in one side of the rolling barrel 4, and the tunnel type temperature and humidity control device 10 is connected with the first inlet through a pipeline;

the machine vision device comprises a CCD industrial camera image collector, wherein the image size is more than 1080 multiplied by 1080 pixels, the exposure time is less than 0.09ms, the light source intensity is 100lx, the light supplementing module, the data storage and transmission module and the information extraction and processing module, so that real-time snapshot and quick response of a three-dimensional space of a rolled product are realized, and the definition of the photo is improved;

the quantity and the position of a system capable of taking the best rolling product state are obtained through setting position research and quantity combination optimization, namely CCD industrial camera image collectors are respectively arranged on a rolling disc 5, a rolling cover 3 and a rolling barrel 4, a first round hole 504, a second round hole and a third round hole are respectively formed in the rolling disc 5, the rolling cover 3 and the rolling barrel 4, the CCD industrial camera image collectors are respectively arranged on the first round hole 504, the second round hole and the third round hole, and organic glass is filled in the first round hole 504, the second round hole and the third round hole, so that the rolling tea is conveniently shot; the light supplementing module is used for supplementing light when a photo is taken; the data storage and transmission module is used for carrying out data enhancement processing such as photo storage, translation, rotation, overturning, noise adding and the like, increasing the number of image samples in an order-of-magnitude form, and transmitting the number of image samples to the intelligent control twisting machine central control device 11 in real time; the information extraction and processing module is used for carrying out characteristic extraction and quantization processing on objective indexes of the rolled tea.

The intelligent control twisting machine central control device 11 comprises a data acquisition module and a control unit; the data acquisition module comprises a temperature and humidity probe and an image sample input by a machine vision device; the control unit comprises an input module and a control panel and is used for checking the state of the rolled tea leaves and controlling technological parameters.

As shown in fig. 3, the intelligent tea rolling machine can realize continuous and batch rolling operation through matching an oblique feeding device 12, a conveying device 13, an electronic weighing device 14, a tea conveying device 15, a rolling machine set bracket 16, a rolling machine 17, a rolling table 18 and a vibration discharging device 19, and is suitable for industrial production of tea.

The regulation and control of the oxygen concentration form double oxygen supply from bottom to top and from top to bottom through the double setting of the miniature first oxygen supply holes 502 set on the rolling disc wheel bones and the second oxygen supply holes 301 on the rolling cover 3, so as to provide sufficient and uniform oxygen supply for rolling and provide sufficient and uniform oxygen supply for rolling;

the temperature and humidity regulation and control of the rolling are firstly determined through CFD flow field simulation, then the tunnel type temperature and humidity control device 102, namely water, is subjected to high-frequency oscillation under the ultrasonic atomization effect to form atomized steam with extremely fine granularity, when the atomized steam passes through a spiral air heating or refrigerating device, the atomized gas is regulated to a proper temperature, the temperature and humidity regulation and control are carried out through the multi-element control of heating, refrigerating, dehumidifying and humidifying modules, the tunnel type temperature and humidity control system forms an innovative mode of humidity and temperature cooperative regulation and control, and the heating, refrigerating, dehumidifying and humidifying isothermal humidity accurate and stable regulation and control of the rolling operation are realized.

When the rolling machine works specifically, an intelligent tea rolling machine is required to be started firstly, processed tea is put into the rolling barrel 4, a machine vision device performs machine vision scanning on the tea, the intelligent rolling machine central control device 11 presets collected information, a tea photo is taken, the tenderness of the raw materials is rapidly judged, and the intelligent tea rolling machine is matched with proper rolling technical parameters to realize the processing of different raw materials, and the performance parameters of rolling equipment and the performance parameters of the traditional rolling machine are compared as shown in a table 1;

TABLE 1 comparison of the Performance parameters of the twisting apparatus

The technical problems, technical solutions and advantageous effects solved by the present utility model have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present utility model and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present utility model should be included in the scope of protection of the present utility model. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The intelligent tea rolling machine based on machine vision is characterized by comprising a support frame and a rolling device arranged on the support frame, wherein the rolling device comprises a rolling cover (3), a rolling barrel (4), a rolling disc (5), a rolling barrel rotation driving device (7) and a lifting structure (8); the upper part of the rolling barrel (4) is movably connected with the rolling cover (3), the rolling barrel rotation driving device (7) is connected with the rolling barrel (4), and the lifting structure (8) is connected with the rolling barrel rotation driving device (7) and the rolling cover (3);

the rolling machine also comprises a machine vision device, a rolling temperature and humidity regulation facility and an intelligent control rolling machine central control device (11); the machine vision device is arranged on the rolling machine, and the rolling temperature and humidity control device is connected with one side of the rolling barrel (4).

2. An intelligent tea rolling machine based on machine vision according to claim 1, characterized in that the rolling barrel rotation driving means (7) comprises three cranks (701) and three connecting arms; the connecting arms comprise a first connecting arm (702), a second connecting arm (703) and a third connecting arm (704), the inner side end parts of the three cranks (701) are in pin joint fit with the three connecting arms fixedly arranged on the side face of the twisting barrel (4), the outer side end parts of the three cranks (701) are in pin joint fit with the top end parts of the outer edge table (6) of the twisting tea tray, and a tripod (705) is fixedly connected above the three connecting arms.

3. The intelligent tea rolling machine based on machine vision according to claim 2, wherein the lifting structure (8) comprises a lifting rod (801), a connecting seat (802) and a pressurizing rod, the lifting rod (801) is fixedly connected to the surface of the third connecting arm (704), the connecting seat (802) is sleeved on the top of the lifting rod (801), the pressurizing rod comprises a first pressurizing rod (803) and a second pressurizing rod (804), the first pressurizing rod (803) is fixedly connected to the outer surface of the connecting seat (802), the other end of the first pressurizing rod (803) is fixedly connected with one end of the second pressurizing rod (804), and the second pressurizing rod (804) is hollow and the other end of the second pressurizing rod (804) is fixedly connected with the middle of the rolling cover (3).

4. The intelligent tea rolling machine based on machine vision according to claim 1, wherein the rolling temperature and humidity control facility comprises a temperature and humidity probe and a tunnel type temperature and humidity control device (10), the temperature and humidity probe is arranged inside the rolling barrel (4), a first inlet is formed in one side of the rolling barrel (4), and the tunnel type temperature and humidity control device (10) is connected with the first inlet through a pipeline.

5. The machine vision-based intelligent tea rolling machine according to claim 1, wherein a wheel rib (501) is uniformly arranged on the surface of the rolling disc (5) along the circumferential direction of the rolling disc, a second oxygen supply hole (301) is formed in the middle of the rolling cover (3), the second oxygen supply hole (301) is connected with an oxygen generator (9), a first oxygen supply hole (502) is uniformly formed in the wheel rib (501), and the first oxygen supply hole (502) is connected with the oxygen generator (9).

6. An intelligent tea rolling machine based on machine vision according to claim 1, wherein the machine vision device comprises a CCD industrial camera image collector and a light supplementing module, the CCD industrial camera image collector being arranged on the rolling machine; the light supplementing module comprises a light supplementing device.

7. The intelligent tea rolling machine based on machine vision according to claim 6, wherein the CCD industrial camera image collectors are respectively arranged on a rolling disc (5), a rolling cover (3) and a rolling barrel (4), a first round hole (504), a second round hole and a third round hole are respectively formed in the rolling disc (5), the rolling cover (3) and the rolling barrel (4), the CCD industrial camera image collectors are respectively arranged on the first round hole (504), the second round hole and the third round hole, and the inside of the first round hole (504), the inside of the second round hole and the inside of the third round hole are filled with organic glass.