Coffee extraction process and concentration device thereof

Abstract

The invention relates to the technical field of extraction and concentration of coffee, and discloses a coffee extraction process and a concentration device.The coffee extraction process comprises an extraction machine, a supporting plate is fixedly connected to the outer wall of the extraction machine, an extraction head is fixedly connected to the inner wall of the supporting plate, a connecting sleeve is clamped to the outer wall of the extraction head, and an extraction net is fixedly connected to the inner wall of the connecting sleeve; a first collecting bin is formed in the inner wall of the connecting sleeve, the outer wall of the connecting sleeve is connected with the inner wall of the protective sleeve in a clamped mode, a scraping mechanism is arranged in the first collecting bin, a cooling mechanism is arranged in the connecting sleeve, and the collecting mechanism is arranged in the connecting sleeve. Frozen water crystals are collected through the collecting mechanism, the water crystals are rapidly collected after being formed through centrifugal force, meanwhile, the water crystals are temporarily stored to be used for isolating heat dissipated in the extraction process, interference of the heat to the freezing concentration process is reduced, and the water crystals are prevented from being melted and flowing back due to the heat.

Description

Technical Field

[0001] The invention relates to the technical field of coffee extraction and concentration, in particular to a coffee extraction process and a coffee concentration device. Background Art

[0002] With the advancement of the Industrial Revolution and people's demand for efficient coffee making, and with the popularization of global coffee consumption, espresso machine technology has been continuously iterating, from manual to semi-automatic to fully automatic, promoting the industrial development of the coffee industry. The popularization of concentration devices has not only changed people's coffee drinking habits, but also given rise to the prosperity of coffee house culture, becoming an important bridge connecting traditional and modern coffee craftsmanship.

[0003] A patent application with application number CN202020837321.8 discloses a coffee concentrate concentration device, which includes a freezing chamber, in which a freezing tank is provided, the freezing tank is connected to a steam delivery pipe and a coffee concentrate delivery pipe, a temperature sensor and a liquid level sensor are provided in the freezing tank, the lower end of the freezing tank extends out of the freezing chamber, the bottom end of the freezing tank is connected to a liquid discharge funnel, and a material receiving container is provided at the lower end of the liquid discharge funnel.

[0004] However, when using frozen concentrated coffee, the existing coffee extraction and concentration device generates high heat during the extraction process, which prolongs the concentration time. During the crystallization collection stage of the frozen concentrated coffee, the heat continuously emitted during the extraction process will cause the formed crystals to partially melt and reflux, resulting in reduced concentration efficiency and affecting the final concentration effect. Summary of the invention

[0005] The object of the present invention is to provide a coffee extraction process and a coffee concentration device thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A coffee extraction and concentration device comprises an extraction machine, wherein the outer wall of the extraction machine is fixedly connected to a support plate, the inner wall of the support plate is fixedly connected to an extraction head, the outer wall of the extraction head is clamped with a connecting sleeve, the inner wall of the connecting sleeve is fixedly connected to an extraction net, the inner wall of the connecting sleeve is provided with a collection bin 1, the outer wall of the connecting sleeve is clamped with the inner wall of the protective sleeve, a scraping mechanism is arranged inside the collection bin 1, and a cooling mechanism is arranged inside the connecting sleeve, and further comprises: A collecting mechanism, which is arranged inside the connecting sleeve, and includes baffle 1, a guide groove is provided on the top of baffle 1, an isolation plate is fixedly connected to the bottom of baffle 1, a connecting hole is provided on the outer wall of the isolation plate, a scraper 1 is fixedly connected to the bottom of the isolation plate, a guide cylinder is rotatably connected to the bottom of the inner wall of baffle 1 through a rotating shaft, a guide bar is fixedly connected to the outer wall of the guide cylinder, baffle 2 is fixedly connected to the bottom of baffle 1, a concentration mechanism is provided at the bottom of scraper 1, the guide cylinder is used to guide the crystals precipitated from the frozen coffee liquid, and the guide bar is used to concentrate the crystals precipitated from the frozen coffee liquid.

[0007] According to the above technical solution, the cooling mechanism includes a guide plate, a guide groove 1 is provided on the top of the guide plate, a cooling pipe is fixedly connected to the bottom of the guide plate, the other end of the cooling pipe is fixedly connected to the inner wall of the guide pipe, the guide groove 1 is used to divert the extracted coffee liquid, and the cooling pipe is used to cool the diverted coffee liquid.

[0008] According to the above technical solution, the concentration mechanism includes a collecting bin 2, the top of the collecting bin 2 is fixedly connected to the bottom of the scraper 1, the bottom of the inner wall of the collecting bin 2 is fixedly connected with a cushion block, the bottom of the inner wall of the collecting bin 2 is rotatably connected with a guide block through a bearing, the outer wall of the guide block is provided with a guide groove 2, the bottom of the guide block is provided with a limiting groove, the groove wall of the limiting groove is slidably connected to a limiting sleeve, the inner wall of the limiting sleeve is slidably connected with a freezing block, the top of the limiting sleeve is fixedly connected with a spring 1, the other end of the spring 1 is fixedly connected to the bottom of the freezing block, the inner wall of the guide block is fixedly connected with a motor, the collecting bin 2 is used to hold the coffee solution cooled after extraction, and the freezing block has a built-in refrigeration module for freezing and separating water in the coffee liquid.

[0009] According to the above technical solution, the scraping mechanism includes a support block 1, the outer wall of the support block 1 is connected to a scraper 2 via a rotating shaft hinge, the outer wall of the scraper 2 is connected to a sliding rod via a rotating shaft hinge, the outer wall of the sliding rod is slidably connected to the support block 2, the bottom of the support block 2 is fixedly connected to a spring 2, the other end of the spring 2 is fixedly connected to the outer wall of the sliding rod, and the scraper 2 is used to guide the crystals on the surface of the scraper 1 into the collection bin 1.

[0010] According to the above technical solution, the top of the baffle plate 1 is rotatably connected to the bottom of the guide tube through a bearing, the bottom of the scraper plate 1 contacts the top of the frozen block, the outer wall of the guide cylinder contacts the top of the frozen block, the outer wall of the guide cylinder contacts the outer wall of the scraper plate 1, the scraper plate 1 is used to scrape off the frozen crystals on the surface of the frozen block, and the guide cylinder is used to guide the frozen block.

[0011] According to the above technical solution, the guide plate is arranged below the extraction net, the outer wall of the guide plate is fixedly connected to the inner wall of the connecting sleeve, the top of the guide tube is fixedly connected to the bottom of the guide plate, and the guide tube is used to guide the coffee solution.

[0012] According to the above technical solution, the bottom of the guide block is fixedly connected to the bottom of the inner wall of the protective sleeve through a connecting rib that penetrates the inner wall of the second collecting bin, the output end of the motor is fixedly connected to the inner wall of the first baffle, the outer wall of the second collecting bin is rotatably connected to the inner wall of the protective sleeve through a bearing, the inner wall of the freezing block is slidably connected to the wall of the limiting groove, and the guide block is used to guide the coffee solution.

[0013] According to the above technical solution, the outer wall of the second scraper is in contact with the surface of the baffle, the top of the second support block is fixedly connected to the inner wall of the collection bin, and the second support block is used to limit the sliding distance of the sliding rod.

[0014] An extraction process of a coffee extraction and concentration device comprises the following steps: S1. Pour the ground coffee powder onto the surface of the extraction net in the connecting sleeve, and after compaction, clamp the connecting sleeve at the bottom of the extraction head to extract the coffee. The extracted coffee solution flows to the surface of the guide plate after passing through the extraction net, and is guided into the cooling tube through a pair of guide grooves, so that the coffee solution is cooled during the flow in the cooling tube; S2, the coffee solution flows from the cooling tube into the guide tube, and the baffle plate 1 is driven by a motor to rotate at the bottom of the guide tube. The extracted coffee solution flows from the guide tube to the surface of the baffle plate 1, and then is guided by the guide groove to enter the concentration mechanism to freeze and concentrate the coffee solution; S3, the precipitated water crystals are scraped off by the scraper 1, the scraped water crystals are rotated by the guide cylinder, and the water crystals are concentrated and guided by the guide strip, and the water crystals are collected on the surface of the scraper 1. The centrifugal force generated by the rotation of the baffle 1 and the isolation plate guide the water crystals, and the water crystals are gathered through the connecting holes, and the water crystals are introduced into the collection bin 1 for collection by the centrifugal force; S4. During the process of collecting water crystals, the water crystals absorb the heat emitted by the coffee solution in the cooling tube, which helps to cool the cooling tube. The water crystals after absorbing the heat are cleaned by the scraping mechanism and guided to the inside of the collecting bin for collection to prevent them from adhering to the collecting mechanism. After the coffee solution is concentrated, the protective cover is removed from the bottom of the connecting sleeve, the concentrating mechanism is taken out from the inside of the connecting sleeve, and the concentrated coffee solution in the concentrating mechanism is poured out.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The coffee extraction process and the concentration device thereof collect frozen water crystals through a collection mechanism, and the water crystals are quickly collected after being formed through centrifugal force. At the same time, the water crystals are temporarily stored to isolate the heat dissipated during the extraction process, thereby reducing the interference of heat on the freezing concentration process, avoiding the melting and reflux of the water crystals due to heat, and ensuring the stability of the concentration effect.

[0016] 2. The coffee extraction process and the concentration device thereof use a cooling mechanism to rapidly cool down the extracted coffee solution, thereby effectively reducing the temperature of the coffee liquid, reducing the interference of heat on the freeze concentration process, effectively improving the efficiency of freeze concentration, preventing the heat generated during the extraction process from adversely affecting the freeze concentration process, and ensuring the stability of the coffee quality.

[0017] 3. The coffee extraction process and the concentrating device thereof use the concentrating mechanism to rapidly separate and crystallize the water in the coffee solution, and stir the coffee solution to ensure that the concentration of the coffee solution is uniform, thereby effectively shortening the concentration time of the coffee solution. Meanwhile, during the stirring process, the coffee solution is prevented from precipitating or stratifying during the concentration process, thereby ensuring the quality and stability of the concentrated coffee.

[0018] 4. The coffee extraction process and the concentration device thereof can timely clean the water crystals through the scraping mechanism to prevent the crystals from flowing back after melting, and prevent the crystals from recrystallizing and adhering to the collecting mechanism after melting, thereby affecting the collection efficiency of the collecting mechanism for the water crystals, thereby ensuring the continuous and efficient operation of the collecting mechanism and avoiding the influence of the stability of the subsequent concentration process on the residual crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 The cross-sectional view of the present invention Figure 1 ; Figure 3 The cross-sectional view of the present invention Figure 2 ; Figure 4 A cross-sectional view of the cooling mechanism of the present invention Figure 1 ; Figure 5 A cross-sectional view of the cooling mechanism of the present invention Figure 2 ; Figure 6 It is a structural schematic diagram of the collecting mechanism of the present invention; Figure 7 A cross-sectional view of the collecting mechanism of the present invention Figure 1 ; Figure 8 A cross-sectional view of the collecting mechanism of the present invention Figure 2 ; Fig. 9 is a cross-sectional view of the concentrating mechanism of the present invention; Fig.10 It is a structural schematic diagram of the scraping mechanism of the present invention.

[0020] In the figure: 1. Extraction machine; 101. Support plate; 102. Extraction head; 103. Connection sleeve; 104. Extraction net; 105. Collection chamber 1; 106. Protection sleeve; 2. Cooling mechanism; 201. Guide plate; 202. Guide groove 1; 203. Cooling pipe; 204. Guide pipe; 3. Collection mechanism; 301. Baffle 1; 302. Guide groove; 303. Isolation plate; 304. Connection hole; 305. Guide cylinder; 306 , guide strip; 307, scraper one; 308, baffle two; 4, concentration mechanism; 401, collection bin two; 402, cushion block; 403, guide block; 404, guide groove two; 405, motor; 406, limit groove; 407, limit sleeve; 408, spring one; 409, freezing block; 5, scraping mechanism; 501, support block one; 502, support block two; 503, sliding rod; 504, spring two; 505, scraper two. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] For example, see Figure 1-Figure 8 The present invention provides a technical solution: a coffee extraction and concentration device, including an extraction machine 1, the outer wall of the extraction machine 1 is fixedly connected to a support plate 101, the inner wall of the support plate 101 is fixedly connected to an extraction head 102, the outer wall of the extraction head 102 is clamped with a connecting sleeve 103, the inner wall of the connecting sleeve 103 is fixedly connected to an extraction net 104, the inner wall of the connecting sleeve 103 is provided with a collecting bin 105, the outer wall of the connecting sleeve 103 is clamped with the inner wall of a protective sleeve 106, a scraping mechanism 5 is arranged inside the collecting bin 105, and a cooling mechanism 2 is arranged inside the connecting sleeve 103, and also includes: The collecting mechanism 3 is arranged inside the connecting sleeve 103. The collecting mechanism 3 includes a baffle plate 1 301. A guide groove 302 is provided on the top of the baffle plate 1 301. An isolation plate 303 is fixedly connected to the bottom of the baffle plate 1 301. A connecting hole 304 is provided on the outer wall of the isolation plate 303. A scraper plate 1 307 is fixedly connected to the bottom of the isolation plate 303. A guide cylinder 305 is rotatably connected to the bottom of the inner wall of the baffle plate 1 301 through a rotating shaft. A guide strip 306 is fixedly connected to the outer wall of the guide cylinder 305. A baffle plate 2 308 is fixedly connected to the bottom of the baffle plate 1 301. A concentration mechanism 4 is provided at the bottom of the scraper plate 1 307. The guide cylinder 305 is used to concentrate the crystals precipitated from the frozen coffee liquid. The guide strip 306 is used to concentrate the crystals precipitated from the frozen coffee liquid. When the coffee extraction and concentration device is put into use, the connecting sleeve 103 is removed from the extraction head 102, and the ground coffee powder is poured into the surface of the extraction net 104 in the connecting sleeve 103. After compaction, the connecting sleeve 103 is clamped on the bottom of the extraction head 102 to extract the coffee. The extracted coffee solution flows to the surface of the guide plate 201 after passing through the extraction net 104, and is guided into the cooling tube 203 through the guide groove 202. After the coffee solution is cooled during the flow in the cooling tube 203, the coffee solution flows from the cooling tube 203 into the guide tube 204. The baffle plate 301 is driven by the motor 405 to rotate at the bottom of the guide tube 204. The extracted coffee solution flows from the guide tube 204 to the surface of the baffle plate 301, and is guided by the guide groove 302 to enter the concentration mechanism 4 to freeze and concentrate the coffee solution. The precipitated water crystals are scraped off by the scraper plate 307. The scraped water crystals rotate through the guide cylinder 305, and the water crystals are concentrated and guided by the guide bar 306, and the water crystals are collected on the surface of the scraper plate 307. The centrifugal force generated by the rotation of the baffle plate 301 guides the water crystals, and the water crystals are gathered through the connecting hole 304, and the water crystals are separated by the centrifugal force. The water crystals are introduced into the collecting chamber 105. Meanwhile, in the process of collecting water crystals, the water crystals absorb the heat emitted by the coffee solution in the cooling tube 203, which helps to cool the cooling tube 203. The water crystals after absorbing the heat are cleaned by the scraping mechanism 5 and guided to the inside of the collecting chamber 105 for collection to prevent them from adhering to the collecting mechanism 3 and affecting the collection efficiency of the water crystals. After the coffee solution is concentrated, the protective sleeve 106 is removed from the bottom of the connecting sleeve 103, and the concentrating mechanism 4 is taken out from the inside of the connecting sleeve 103. After the concentrated coffee solution in the concentrating mechanism 4 is poured out, it is re-attached to the outer wall of the connecting sleeve 103 for the next extraction and concentration. The cooling mechanism 2 includes a guide plate 201, a guide groove 202 is provided on the top of the guide plate 201, a cooling pipe 203 is fixedly connected to the bottom of the guide plate 201, and the other end of the cooling pipe 203 is fixedly connected to the inner wall of the guide pipe 204. The guide groove 202 is used to divert the extracted coffee liquid, and the cooling pipe 203 is used to cool the diverted coffee liquid. The extracted coffee solution flows to the surface of the guide plate 201 after passing through the extraction net 104, and is guided into the cooling pipe 203 by the guide groove 202. After the coffee solution is cooled during the flow in the cooling pipe 203, the coffee solution flows from the cooling pipe 203 to the guide pipe 204. The baffle 301 is driven by the motor 405 to rotate at the bottom of the guide pipe 204. After the extracted coffee solution flows from the guide pipe 204 to the surface of the baffle 301, it is guided by the guide groove 302 and enters the concentration mechanism 4 to freeze and concentrate the coffee solution. The top of the baffle 301 is rotatably connected to the bottom of the guide tube 204 through a bearing, the bottom of the scraper 307 contacts the top of the frozen block 409, the outer wall of the guide cylinder 305 contacts the top of the frozen block 409, the outer wall of the guide cylinder 305 contacts the outer wall of the scraper 307, the scraper 307 is used to scrape off the frozen crystals on the surface of the frozen block 409, the guide cylinder 305 is used to guide the frozen block 409, the baffle 301 is driven by the motor 405 to rotate at the bottom of the guide tube 204, and the extracted coffee solution flows from the guide tube 204 to the surface of the baffle 301. The coffee solution is guided by the guide groove 302 and enters the concentration mechanism 4 to be freeze-concentrated. The precipitated water crystals are scraped off by the scraper 1 307. The scraped water crystals are rotated by the guide cylinder 305 and concentrated by the guide bar 306. The water crystals are collected on the surface of the scraper 1 307. The water crystals are guided by the isolation plate 303 through the centrifugal force generated by the rotation of the baffle 1 301, and the water crystals are gathered through the connection hole 304. The water crystals are introduced into the collection bin 105 by the centrifugal force, and the water crystals are separated and collected. The guide plate 201 is arranged below the extraction net 104, the outer wall of the guide plate 201 is fixedly connected to the inner wall of the connecting sleeve 103, the top of the guide tube 204 is fixedly connected to the bottom of the guide plate 201, and the guide tube 204 is used to guide the coffee solution. The coffee solution that flows to the surface of the guide plate 201 after passing through the extraction net 104 is guided into the cooling tube 203 through the guide groove 1 202. After the coffee solution is cooled during the flow in the cooling tube 203, the coffee solution flows from the cooling tube 203 into the guide tube 204, and the extracted coffee solution is isolated by the guide tube 204 and guided to the collection mechanism.

[0023] Example 2, based on Example 1, please refer to Fig. 9The present invention provides a technical solution: the concentration mechanism 4 includes a collecting bin 2 401, the top of the collecting bin 2 401 is fixedly connected to the bottom of the scraper 1 307, the bottom of the inner wall of the collecting bin 2 401 is fixedly connected with a cushion block 402, the bottom of the inner wall of the collecting bin 2 401 is rotatably connected with a guide block 403 through a bearing, the outer wall of the guide block 403 is provided with a guide groove 2 404, the bottom of the guide block 403 is provided with a limiting groove 406, the groove wall of the limiting groove 406 is slidably connected with a limiting sleeve 407, the inner wall of the limiting sleeve 407 is slidably connected with a freezing block 409, the top of the limiting sleeve 407 is fixedly connected with a spring 1 408, the other end of the spring 1 408 is fixedly connected to the bottom of the freezing block 409, the inner wall of the guide block 403 is fixedly connected with a motor 405, the collecting bin 2 401 The freezing block 409 is used to hold the coffee solution cooled after extraction. The freezing block 409 is built with a refrigeration module for freezing and separating the water in the coffee liquid. The extracted coffee solution flows through the guide groove 302 to the inclined surface of the outer wall of the guide block 403, and flows into the collecting chamber 2 401 for collection. The water in the coffee liquid is quickly crystallized by the refrigeration module in the freezing block 409. The collecting chamber 2 401 is driven to rotate on the inner wall of the connecting sleeve 103 by the scraper 1 307. During the rotation of the collecting chamber 2 401, the cushion block 402 fixedly connected to the bottom of the inner wall of the collecting chamber 2 401 contacts the bottom of the limiting sleeve 407, so that the limiting sleeve 407 slides upward on the inner wall of the guide groove 2 404, driving the freezing block 409 to slide upward on the inner wall of the guide groove 2 404, so that the freezing block The surface of the coffee liquid with water crystals floating on 409 contacts the bottom of the baffle 301 and rotates through the baffle 301, and the freezing block 409 contacts the outer wall of the guide cylinder 305, guides the freezing block 409 and rolls on the surface of the freezing block 409, so that the freezing block 409 compresses the spring 408 to slide on the inner wall of the limiting sleeve 407 and is retracted into the limiting sleeve 407, so that the outer wall of the limiting sleeve 407 scrapes off the water crystals on the outer wall of the freezing block 409 and concentrates on the surface of the limiting sleeve 407, so that the water crystals are concentrated on the freezing block 409, and the bottom of the scraper 307 contacts the surface of the freezing block 409, scrapes off the water crystals on the surfaces of the freezing block 409 and the limiting sleeve 407, and at the same time, the guide cylinder 305 rotates, and the guide bar 306 scrapes the water crystals scraped by the scraper 307. The water crystals are guided and concentrated and collected on the surface of the scraper 307. The water crystals collected on the surface of the scraper 307 are driven to rotate by the baffle 301 to generate centrifugal force. The water crystals located outside the surface of the scraper 307 are directly collected and stored in the collection bin 105. The water crystals located inside the surface of the scraper 307 are isolated and guided by the isolation plate 303 and temporarily stored on the surface of the scraper 307, so that the water crystals absorb the heat emitted by the cooling pipe 203 and perform heat isolation, thereby preventing the concentration mechanism 4 from reducing the freezing crystallization speed of the coffee and increasing the cooling speed of the cooling pipe 203 on the coffee. After the water crystals melt, they are guided by the centrifugal force generated by the rotation of the scraper 307 through the connecting hole 304 and collected in the collection bin 105.During the rotation of the second collecting chamber 401, the pad 402 drives the coffee liquid to stir so that the concentration of the coffee liquid remains consistent; The bottom of the guide block 403 passes through the inner wall of the second collecting chamber 401 through a connecting rib and is fixedly connected to the bottom of the inner wall of the protective sleeve 106. The output end of the motor 405 is fixedly connected to the inner wall of the baffle 1 301. The outer wall of the second collecting chamber 401 is rotatably connected to the inner wall of the protective sleeve 106 through a bearing. The inner wall of the freezing block 409 is slidably connected to the groove wall of the limiting groove 406. The guide block 403 is used to guide the coffee solution. The extracted coffee solution flows through the guide groove 302 to the inclined surface of the outer wall of the guide block 403, flows to the second collecting chamber 401 for collection, and the water in the coffee liquid is rapidly crystallized through the refrigeration module in the freezing block 409. The second collecting chamber 401 is driven to rotate on the inner wall of the connecting sleeve 103 by the scraper 1 307. During the rotation of the second collecting chamber 401, the cushion block 402 fixedly connected to the bottom of the inner wall of the second collecting chamber 401 and the limiting sleeve The bottom of the guide cylinder 305 contacts the bottom of the guide cylinder 305, so that the limiting sleeve 407 slides upward on the inner wall of the guide groove 404, driving the freezing block 409 to slide upward on the inner wall of the guide groove 404, so that the freezing block 409 with water crystals floats on the surface of the coffee liquid and contacts the bottom of the baffle 1 301, and rotates through the baffle 1 301, the freezing block 409 contacts the outer wall of the guide cylinder 305, guides the freezing block 409 and rolls on the surface of the freezing block 409, so that the freezing block 409 compresses the spring 1 408 to slide on the inner wall of the limiting sleeve 407 and is retracted into the limiting sleeve 407, so that the outer wall of the limiting sleeve 407 scrapes off the water crystals on the outer wall of the freezing block 409 and concentrates them on the surface of the limiting sleeve 407, so that the water crystals are concentrated on the freezing block 409, and the bottom of the scraper 1 307 contacts the surface of the freezing block 409, scraping off the water crystals on the surfaces of the freezing block 409 and the limiting sleeve 407.

[0024] Example 3, based on Example 1 and Example 2, please refer to Fig.10The present invention provides a technical solution: the scraping mechanism 5 includes a support block 1 501, the outer wall of the support block 1 501 is connected to a scraper 2 505 through a rotating shaft hinge, the outer wall of the scraper 2 505 is connected to a sliding rod 503 through a rotating shaft hinge, the outer wall of the sliding rod 503 is slidably connected to the support block 2 502, the bottom of the support block 2 502 is fixedly connected to a spring 2 504, the other end of the spring 2 504 is fixedly connected to the outer wall of the sliding rod 503, and the scraper 2 505 is used to guide the crystals on the surface of the scraper 1 307 to the collection bin 1 105, In the process of collecting water crystals by the collecting mechanism 3, the baffle 1 301 rotates at the bottom of the scraper 2 505. When the scraper 2 505 slides to the surface of the isolation plate 303, the sliding rod 503 is driven to slide on the inner wall of the support block 2 502 by the squeezing of the spring 2 504. At the same time, the scraper 2 505 is supported by the support block 1 501, so that the sliding rod 503 drives the scraper 2 505 to tilt and contact with the surface of the scraper 1 307, so as to scrape and guide the water crystals and collect the water crystals into the collection bin 1 105. The outer wall of scraper 2 505 contacts the surface of baffle 1 301, the top of support block 2 502 is fixedly connected to the inner wall of collecting bin 105, support block 2 502 is used to limit the sliding distance of sliding rod 503, when scraper 2 505 slides to the surface of isolation plate 303, sliding rod 503 is driven to slide on the inner wall of support block 2 502 by squeezing of spring 2 504, and at the same time, scraper 2 505 is supported by support block 1 501, so that sliding rod 503 drives scraper 2 505 to tilt and contact the surface of scraper 1 307, so as to scrape and guide water crystals and collect the water crystals into collecting bin 105.

[0025] An extraction process of a coffee extraction and concentration device comprises the following steps: S1. Pour the ground coffee powder onto the surface of the extraction net 104 in the connecting sleeve 103, and after compaction, clamp the connecting sleeve 103 on the bottom of the extraction head 102 to extract the coffee. The extracted coffee solution flows through the extraction net 104 to the surface of the guide plate 201, and is guided into the cooling tube 203 through the guide groove 1 202, so that the coffee solution is cooled during the flow in the cooling tube 203; S2, the coffee solution flows from the cooling tube 203 into the guide tube 204, and the baffle 1 301 is driven by the motor 405 to rotate at the bottom of the guide tube 204. The extracted coffee solution flows from the guide tube 204 to the surface of the baffle 1 301, and then is guided by the guide groove 302 to enter the concentration mechanism 4, and the coffee solution is freeze-concentrated; S3, the precipitated water crystals are scraped off by the scraper 307, the scraped water crystals are rotated by the guide cylinder 305, and the water crystals are concentrated and guided by the guide bar 306, and the water crystals are collected on the surface of the scraper 307. The centrifugal force generated by the rotation of the baffle 301, the isolation plate 303 guides the water crystals, and the water crystals are gathered through the connecting hole 304, and the water crystals are introduced into the collection bin 105 by the centrifugal force for collection; S4. During the process of collecting water crystals by the collecting mechanism 3, the water crystals absorb the heat emitted by the coffee solution in the cooling tube 203, and assist in cooling the cooling tube 203. The water crystals after absorbing the heat are cleaned by the scraping mechanism 5 and guided to the inside of the collecting bin 105 for collection to prevent adhesion to the collecting mechanism 3. After the coffee solution is concentrated, the protective cover 106 is removed from the bottom of the connecting sleeve 103, the concentrating mechanism 4 is taken out from the inside of the connecting sleeve 103, and the concentrated coffee solution in the concentrating mechanism 4 is poured out.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coffee extraction and concentration device, comprising an extraction machine (1), wherein the outer wall of the extraction machine (1) is fixedly connected to a support plate (101), the inner wall of the support plate (101) is fixedly connected to an extraction head (102), the outer wall of the extraction head (102) is clamped with a connecting sleeve (103), the inner wall of the connecting sleeve (103) is fixedly connected to an extraction net (104), the inner wall of the connecting sleeve (103) is provided with a collecting bin (105), the outer wall of the connecting sleeve (103) is clamped with the inner wall of a protective sleeve (106), and the characteristics are as follows: The first collecting bin (105) is provided with a scraping mechanism (5) inside, the connecting sleeve (103) is provided with a cooling mechanism (2) inside, and further comprises: A collecting mechanism (3), the collecting mechanism (3) being arranged inside the connecting sleeve (103), the collecting mechanism (3) comprising a baffle plate 1 (301), the top of the baffle plate 1 (301) being provided with a guide groove (302), the bottom of the baffle plate 1 (301) being fixedly connected to an isolation plate (303), the outer wall of the isolation plate (303) being provided with a connecting hole (304), the bottom of the isolation plate (303) being fixedly connected to a scraper plate 1 (307), the bottom of the inner wall of the baffle plate 1 (301) being rotatably connected to a guide cylinder (305) via a rotating shaft, the outer wall of the guide cylinder (305) being fixedly connected to a guide bar (306), the bottom of the baffle plate 1 (301) being fixedly connected to a baffle plate 2 (308), the bottom of the scraper plate 1 (307) being provided with a concentration mechanism (4), the guide cylinder (305) being used to guide crystals precipitated from the coffee liquid by freezing, and the guide bar (306) being used to concentrate crystals precipitated from the coffee liquid by freezing.

2. The coffee extraction and concentration device according to claim 1, characterized in that: The cooling mechanism (2) comprises a guide plate (201), a guide groove 1 (202) is provided on the top of the guide plate (201), a cooling pipe (203) is fixedly connected to the bottom of the guide plate (201), the other end of the cooling pipe (203) is fixedly connected to the inner wall of the guide pipe (204), the guide groove 1 (202) is used to divert the extracted coffee liquid, and the cooling pipe (203) is used to cool the diverted coffee liquid.

3. The coffee extraction and concentration device according to claim 1, characterized in that: The concentrating mechanism (4) comprises a second collecting bin (401), the top of the second collecting bin (401) being fixedly connected to the bottom of the first scraper (307), a cushion block (402) being fixedly connected to the bottom of the inner wall of the second collecting bin (401), a guide block (403) being rotatably connected to the bottom of the inner wall of the second collecting bin (401) via a bearing, a second guide groove (404) being provided on the outer wall of the guide block (403), a limiting groove (406) being provided on the bottom of the guide block (403), and a groove wall of the limiting groove (406) being slidably connected to the guide block (403). A limiting sleeve (407) is connected, the inner wall of the limiting sleeve (407) is slidably connected to a freezing block (409), the top of the limiting sleeve (407) is fixedly connected to a spring 1 (408), the other end of the spring 1 (408) is fixedly connected to the bottom of the freezing block (409), the inner wall of the guide block (403) is fixedly connected to a motor (405), the collecting chamber 2 (401) is used to hold the coffee solution cooled after extraction, and the freezing block (409) is internally provided with a refrigeration module for freezing and separating water in the coffee liquid.

4. The coffee extraction and concentration device according to claim 1, characterized in that: The scraping mechanism (5) comprises a support block 1 (501), the outer wall of the support block 1 (501) is connected to a scraper 2 (505) via a rotating shaft hinge, the outer wall of the scraper 2 (505) is connected to a sliding rod (503) via a rotating shaft hinge, the outer wall of the sliding rod (503) is slidably connected to the support block 2 (502), the bottom of the support block 2 (502) is fixedly connected to a spring 2 (504), the other end of the spring 2 (504) is fixedly connected to the outer wall of the sliding rod (503), and the scraper 2 (505) is used to guide the crystals on the surface of the scraper 1 (307) into the collection bin 1 (105).

5. The coffee extraction and concentration device according to claim 1, characterized in that: The top of the baffle plate 1 (301) is rotatably connected to the bottom of the guide tube (204) via a bearing, the bottom of the scraper plate 1 (307) contacts the top of the freezing block (409), the outer wall of the guide cylinder (305) contacts the top of the freezing block (409), the outer wall of the guide cylinder (305) contacts the outer wall of the scraper plate 1 (307), the scraper plate 1 (307) is used to scrape off frozen crystals on the surface of the freezing block (409), and the guide cylinder (305) is used to guide the freezing block (409).

6. The coffee extraction and concentration device according to claim 2, characterized in that: The guide plate (201) is arranged below the extraction net (104); the outer wall of the guide plate (201) is fixedly connected to the inner wall of the connecting sleeve (103); the top of the guide tube (204) is fixedly connected to the bottom of the guide plate (201); and the guide tube (204) is used to guide the coffee solution.

7. The coffee extraction and concentration device according to claim 3, characterized in that: The bottom of the guide block (403) is fixedly connected to the bottom of the inner wall of the protective sleeve (106) through a connecting rib that penetrates the inner wall of the second collecting chamber (401); the output end of the motor (405) is fixedly connected to the inner wall of the baffle plate (301); the outer wall of the second collecting chamber (401) is rotatably connected to the inner wall of the protective sleeve (106) through a bearing; the inner wall of the freezing block (409) is slidably connected to the groove wall of the limiting groove (406); and the guide block (403) is used to guide the coffee solution.

8. The coffee extraction and concentration device according to claim 4, characterized in that: The outer wall of the scraper plate 2 (505) contacts the surface of the baffle plate 1 (301), the top of the support block 2 (502) is fixedly connected to the inner wall of the collection bin 1 (105), and the support block 2 (502) is used to limit the sliding distance of the sliding rod (503).

9. The extraction process of a coffee extraction and concentration device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Pour the ground coffee powder onto the surface of the extraction net (104) in the connecting sleeve (103), and after compaction, snap the connecting sleeve (103) onto the bottom of the extraction head (102) to extract the coffee. The extracted coffee solution flows through the extraction net (104) to the surface of the guide plate (201), and is guided into the cooling tube (203) through the guide groove 1 (202), so that the coffee solution is cooled during the flow in the cooling tube (203); S2, the coffee solution flows from the cooling tube (203) into the guide tube (204), the baffle plate 1 (301) is driven by the motor (405) to rotate at the bottom of the guide tube (204), and the extracted coffee solution flows from the guide tube (204) to the surface of the baffle plate 1 (301), and then is guided by the guide groove (302) to enter the concentration mechanism (4), so as to freeze and concentrate the coffee solution; S3, the precipitated water crystals are scraped off by the scraper 1 (307), the scraped water crystals are rotated by the guide cylinder (305), and the water crystals are concentrated and guided by the guide strip (306), and the water crystals are collected on the surface of the scraper 1 (307). The centrifugal force generated by the rotation of the baffle 1 (301) guides the water crystals, and the water crystals are gathered through the connection holes (304), and the water crystals are introduced into the collection bin 1 (105) by the centrifugal force for collection; S4. During the process of collecting water crystals, the water crystals absorb the heat emitted by the coffee solution in the cooling tube (203), thereby assisting in cooling the cooling tube (203). After absorbing the heat, the water crystals are cleaned by the scraping mechanism (5) and guided to the inside of the collecting chamber (105) for collection to prevent them from adhering to the collecting mechanism (3). After the coffee solution is concentrated, the protective sleeve (106) is removed from the bottom of the connecting sleeve (103), the concentrating mechanism (4) is removed from the inside of the connecting sleeve (103), and the concentrated coffee solution in the concentrating mechanism (4) is poured out.

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