Drying and grinding device for tea leaf detection

Abstract

The invention belongs to the field of tea detection, and provides a drying and grinding device for tea detection, which comprises a box body, two transmission rollers and two cloth rollers are rotatably mounted in the box body, breathable water-absorbing cloth is wound on one cloth roller, one end of the breathable water-absorbing cloth bypasses the two transmission rollers and is wound on the other cloth roller, and the other end of the breathable water-absorbing cloth is wound on the other cloth roller. Heating sleeves are arranged on the two cloth rollers; a material guide plate and a discharging gate are fixedly installed in the box body, and at the beginning, one end of the material guide plate and one end of the discharging gate make contact with the surface of the breathable water absorption cloth. According to the device, the breathable water-absorbing cloth is heated through the heating sleeve, then the sample is dried through the breathable water-absorbing cloth, the situation that the wet sample is difficult to fully crush is avoided, finally, the sample is hammered and ground through the material turning and grinding mechanism, and the sample crushing effect is improved.

Description

Technical Field

[0001] The invention belongs to the field of tea detection, and in particular relates to a drying and grinding device for tea detection. Background Art

[0002] Tea testing is the testing of tea for quality, safety and compliance. Common tea testing items include aroma, appearance, color, taste, smell, residual pesticides, heavy metals, mycotoxins, etc. Testing can help manufacturers improve the quality of tea, and can also help consumers choose high-quality tea and ensure the safety of tea.

[0003] When testing tea leaves for pesticide residues, the tea leaves are often crushed and ground to break the cell walls of the tea leaves. The broken tea leaves are then soaked in deionized water to dissolve the cytoplasm of the tea leaves into the deionized water, and the mixed solution is then tested.

[0004] In the traditional process of crushing tea leaves, high-speed rotating blades are usually used to cut the tea leaves. However, for wet tea leaves, the blades will cut the tea leaves, causing the cell sap of the tea cells to flow out. The cell sap may cause the tea leaves to adhere to the inner wall of the equipment, making it difficult for some tea leaves to be fully crushed, thereby causing the quality of the tea samples to decline. Summary of the invention

[0005] The object of the present invention is to provide a drying and grinding device for tea leaf detection, aiming to solve the technical problem in the prior art that the cutting of wet tea leaves will make it difficult for the tea leaves to be fully crushed.

[0006] The present invention is implemented as follows: a drying and grinding device for tea detection comprises a box body, wherein two transmission rollers and two cloth rolling rollers are rotatably installed inside the box body, a breathable water-absorbing cloth is wound around one of the cloth rolling rollers, and the breathable water-absorbing cloth is made of a breathable material with elasticity and water absorption, one end of the breathable water-absorbing cloth is passed around two transmission rollers and wound around another cloth rolling roller, the two transmission rollers and the two cloth rolling rollers form a trapezoid or a rectangle, the two cloth rolling rollers are both located below the transmission rollers, and the two cloth rolling rollers are both provided with heating sleeves, and the heating sleeves are used to heat the breathable water-absorbing cloth; A material guide plate and a material discharge gate are fixedly installed inside the box body. Initially, one end of the material guide plate and the material discharge gate are in contact with the surface of the breathable water-absorbent cloth, and a material cavity is formed between the material guide plate, the material discharge gate and the breathable water-absorbent cloth. A material loading port connected to the material cavity is opened on the box body, and a sealing cover is provided at the material loading port; A cleaning brush is provided at the bottom of the guide plate, and the cleaning brush contacts the surface of the breathable absorbent cloth, so that the sample is prevented from being stuck between the guide plate and the breathable absorbent cloth; A bearing groove is fixedly installed inside the box body, and the bearing groove is located below the breathable water-absorbent cloth. A turning and grinding mechanism is installed on the box body, and the turning and grinding mechanism is located directly above the bearing groove. The bearing groove and the turning and grinding mechanism are respectively located on both sides of the breathable water-absorbent cloth. Before the sample is completely dried, the turning and grinding mechanism is used to slowly squeeze the breathable water-absorbent cloth and quickly rise. The breathable water-absorbent cloth can bounce the sample, thereby turning the material and making the sample evenly heated. After the sample is completely dried, the turning and grinding mechanism is used to squeeze the sample into the bearing groove, thereby crushing and grinding the sample. A power mechanism is installed on the box body, and the output end of the power mechanism is connected to one end of a cloth winding roller. The power mechanism is used to drive the cloth winding roller to rotate reciprocatingly, and a clockwork spring is arranged between the other cloth winding roller and the box body.

[0007] Further technical solution: the discharge gate includes a limit plate fixedly connected to the box body, a lifting door is slidably installed inside the limit plate, a telescopic rod is fixedly installed on the box body, the movable end of the telescopic rod is fixedly connected to one end of the lifting door, and a cleaning brush is provided at the bottom of the lifting door, and the cleaning brush is in contact with the surface of the breathable and absorbent cloth.

[0008] Further technical solution: the material turning and grinding mechanism comprises a sliding rod slidably mounted on a box body, a tension spring is connected between the sliding rod and the box body, a ram is fixedly connected to one end of the sliding rod located inside the box body, a movable cavity is provided at the bottom of the ram, an extrusion block is slidably mounted inside the movable cavity, and a compression spring is connected between the extrusion block and the movable cavity; In order to fix the extrusion block, a locking rod is fixedly connected to the top of the extrusion block, and the locking rod is slidably installed inside the sliding rod. A cylinder is fixedly installed on the ram, and a positioning groove adapted to the movable end of the cylinder is opened on the side of the locking rod. Initially, when the movable end of the cylinder is inserted into the positioning groove, one end of the extrusion block extends out of the movable cavity; The top of the ram is also fixedly connected with a guide rod, which penetrates and is slidably mounted on the box body; The material turning and grinding mechanism also includes a reciprocating lifting mechanism, which is installed on the box body. The output end of the reciprocating lifting mechanism is fixedly connected to the top of the sliding rod. The reciprocating lifting mechanism is used to drive the sliding rod to slowly descend and quickly rise.

[0009] Further technical solution: the reciprocating lifting mechanism includes a support frame fixedly connected to the box body, two fixed pulleys are fixedly connected to the support frame, a pull rope is transmission-connected between the two fixed pulleys, one end of the pull rope is fixedly connected to the top of the sliding rod, the other end of the pull rope is fixedly connected to a rack, a slide rail is fixedly connected to the support frame, the rack is slidably mounted on the slide rail, a counterweight is fixedly connected to the bottom of the rack, the weight of the counterweight is greater than the weight of the ramming hammer, the weight of the extrusion block, the weight of the sliding rod and twice the maximum elastic force of the tension spring; The box body is also fixedly connected with a mounting frame, and a first motor is fixedly mounted on the mounting frame. An output shaft of the first motor is fixedly connected with an incomplete gear, and the incomplete gear can mesh with the rack.

[0010] Further technical solution: the power mechanism includes a second motor fixedly mounted on the box body, and a transmission pair is connected between the second motor and one end of a cloth winding roller.

[0011] Further technical solution: A first vacuum assembly is also installed on the box body, and the first vacuum assembly includes a first vacuum pump fixedly installed on the box body, an air inlet of the first vacuum pump is connected to a first vacuum pipe, one end of the first vacuum pipe extending into the interior of the box body is connected to a gas gathering hood, and the gas gathering hood is installed on the box body above the material chamber.

[0012] Further technical solution: A humidity sensor is provided on the first exhaust pipe, and the humidity sensor is electrically connected to the cylinder.

[0013] Further technical solution: the cloth winding roller adopts a hollow structure, and a second air suction component is also installed on the box body, the second air suction component includes a second air suction pump fixedly installed on the box body, the air inlet of the second air suction pump is connected to a second air suction pipe, the two ends of the second air suction pipe are respectively connected to one end of the two cloth winding rollers through a rotating joint, the box body is provided with an air inlet hole for ventilation, and the sides of the two cloth winding rollers are provided with air suction holes connected to the second air suction pipe.

[0014] Further technical solution: a filter screen is also installed inside the box, and the filter screen is installed below one end of the breathable absorbent cloth. A discharge plate is also installed below the filter screen, and a vibration motor is fixedly installed on the filter screen. The box is provided with a coarse material outlet and a fine material outlet respectively connected to the filter screen and the discharge plate, and both the coarse material outlet and the fine material outlet are equipped with inspection doors.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention first heats the breathable water-absorbent cloth through the heating sleeve, and then dries the sample through the breathable water-absorbent cloth, thereby avoiding the situation that the wet sample is difficult to be fully crushed. Finally, the sample is hammered and ground through the turning and grinding mechanism, thereby improving the sample crushing effect; 2. The present invention provides a heating jacket and a breathable absorbent cloth. When there is moisture on the surface of the sample, the breathable absorbent cloth absorbs the moisture on the surface of the sample to accelerate the drying of the sample. When the wet part of the breathable absorbent cloth is rolled up onto the cloth roll, the heating jacket dries the breathable absorbent cloth to prevent the moisture on the breathable absorbent cloth from being contaminated on the sample again, thereby accelerating the drying process and improving the grinding efficiency. 3. The present invention provides a turning and grinding mechanism. Before the sample is completely dried, the turning and grinding mechanism can slowly squeeze the breathable absorbent cloth and quickly rise, so that the breathable absorbent cloth can bounce the sample, thereby turning the material and heating the sample evenly. After the sample is completely dried, the turning and grinding mechanism can squeeze the sample into the bearing tank, thereby crushing and grinding the sample. The turning and grinding mechanism has multiple uses and a simple and reasonable structure. 4. Before the sample is dried, the extrusion block squeezes the breathable absorbent cloth and forms a depression in the middle of the breathable absorbent cloth. The samples at both ends of the breathable absorbent cloth will slide into the depression. The ramming hammer and the extrusion block rise quickly, and the breathable absorbent cloth will drive the sample to rebound quickly. Since the sample with more water has a larger weight, it will fall faster than the drier sample. The sample with more water will fall on the surface of the breathable absorbent cloth first. The breathable absorbent cloth can directly dry the sample with more water. Every time the material is turned over, the relatively moist sample will fall on the surface of the breathable absorbent cloth first, so that the sample is dried more evenly and the sample is prevented from being burnt. 5. After the sample is dried, when the reciprocating lifting mechanism drives the tamping hammer and the extrusion block to slowly descend, the extrusion block will first contact the breathable absorbent cloth and form a depression in the middle of the breathable absorbent cloth. The samples at both ends of the breathable absorbent cloth will slide into the depression. At this time, the sample will slide under the tamping hammer. When the extrusion block contacts the bearing groove, the extrusion block will retract into the active cavity, and the tamping hammer will crush the sample below it. When the tamping hammer rises quickly, the breathable absorbent cloth will bounce the sample again. Smaller samples fall faster, and larger samples fall slower. They will be piled on top of the crushed samples. When the extrusion block squeezes the breathable absorbent cloth again, the larger sample will first contact the tamping hammer, and the tamping hammer will crush it first. Therefore, each time the hammer is tamped, the tamping hammer will first crush the larger sample, so that the sample is crushed more evenly, and all samples can be crushed faster, thereby improving the crushing effect and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall internal structure of the present invention.

[0018] Figure 3 For the present invention Figure 2 Enlarged schematic diagram at point A in the middle.

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the material turning and grinding mechanism in the present invention.

[0020] Figure 5 It is a schematic structural diagram of the cloth winding roller in the present invention.

[0021] In the attached figure: 1, box body; 2, fine material outlet; 3, coarse material outlet; 4, discharge gate; 41, limit plate; 42, lifting door; 43, telescopic rod; 5, reciprocating lifting mechanism; 51, fixed pulley; 52, counterweight block; 53, pull rope; 54, support frame; 55, first motor; 56, incomplete gear; 57, slide rail; 58, rack; 59, mounting frame; 6, first exhaust assembly; 61, first exhaust pipe; 62, first exhaust pump; 63, gas hood; 64, humidity sensor; 7, turning and grinding mechanism; 71, ramming hammer; 72, extrusion block; 73, sliding rod ;74. Tension spring;75. Guide rod;76. Cylinder;77. Locking rod;78. Active chamber;79. Compression spring;8. Power mechanism;81. Second motor;82. Transmission pair;9. Second vacuum assembly;91. Second vacuum pipe;92. Second vacuum pump;93. Air inlet;10. Feeding port;11. Guide plate;12. Cleaning brush;13. Breathable absorbent cloth;14. Transmission roller;15. Loading groove;16. Cloth winding roller;17. Heating sleeve;18. Spring spring;19. Discharge plate;20. Filter screen;21. Vibration motor;22. Vacuum hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0024] like Figure 1-Figure 5As shown, a drying and grinding device for tea detection provided by the present invention comprises a box body 1, wherein two transmission rollers 14 and two cloth rolling rollers 16 are rotatably installed inside the box body 1, and a breathable water-absorbing cloth 13 is wound around one of the cloth rolling rollers 16, and the breathable water-absorbing cloth 13 is made of a breathable material with elasticity and water absorption. One end of the breathable water-absorbing cloth 13 passes around the two transmission rollers 14 and is wound around the other cloth rolling roller 16. The two transmission rollers 14 and the two cloth rolling rollers 16 form a trapezoid or a rectangle. The two cloth rolling rollers 16 are both located below the transmission roller 14. The two cloth rolling rollers 16 are arranged on the bottom of the transmission roller 14. The cloth-winding rollers 16 are provided with heating sleeves 17, which are used to heat the breathable absorbent cloth 13. The sample is placed on the surface of the breathable absorbent cloth 13, and the sample is dried by the high temperature on the breathable absorbent cloth 13. When there is moisture on the surface of the sample, the breathable absorbent cloth 13 will also absorb the moisture on the surface of the sample to speed up the drying of the sample. When the wet part of the breathable absorbent cloth 13 is rolled onto the cloth-winding roller 16, the heating sleeve 17 will dry the breathable absorbent cloth 13 again to prevent the moisture on the breathable absorbent cloth 13 from being contaminated on the sample again, thereby speeding up the drying process and improving the grinding efficiency. A material guide plate 11 and a discharge gate 4 are fixedly installed inside the box body 1. Initially, one end of the material guide plate 11 and the discharge gate 4 are in contact with the surface of the breathable water-absorbent cloth 13, and a material cavity is formed between the material guide plate 11, the discharge gate 4 and the breathable water-absorbent cloth 13. A feeding port 10 connected to the material cavity is opened on the box body 1, and a sealing cover is provided at the feeding port 10; A cleaning brush 12 is provided at the bottom of the guide plate 11, and the cleaning brush 12 contacts the surface of the breathable and water-absorbent cloth 13, so that the sample is prevented from being stuck between the guide plate 11 and the breathable and water-absorbent cloth 13; A bearing groove 15 is fixedly installed inside the box body 1, and the bearing groove 15 is located below the breathable water-absorbent cloth 13. A turning and grinding mechanism 7 is installed on the box body 1, and the turning and grinding mechanism 7 is located directly above the bearing groove 15. The bearing groove 15 and the turning and grinding mechanism 7 are respectively located on both sides of the breathable water-absorbent cloth 13. Before the sample is completely dried, the turning and grinding mechanism 7 is used to slowly squeeze the breathable water-absorbent cloth 13 and quickly rise, and the breathable water-absorbent cloth 13 can bounce the sample, thereby turning the material and making the sample evenly heated. After the sample is completely dried, the turning and grinding mechanism 7 is used to squeeze the sample into the bearing groove 15, thereby achieving crushing and grinding of the sample. A power mechanism 8 is installed on the box body 1, and the output end of the power mechanism 8 is connected to one end of a cloth winding roller 16. The power mechanism 8 is used to drive the cloth winding roller 16 to rotate reciprocatingly. A spring 18 is arranged between the other cloth winding roller 16 and the box body 1. After the turning and grinding mechanism 7 squeezes the sample together with the breathable absorbent cloth 13 inside the bearing groove 15, the spring 18 will leave room for the deformation of the breathable absorbent cloth 13, thereby preventing the turning and grinding mechanism 7 from crushing the breathable absorbent cloth 13.

[0025] In the present invention, the breathable absorbent cloth 13 is first heated by the heating sleeve 17, and then the sample is dried by the breathable absorbent cloth 13, thereby avoiding the situation that the wet sample is difficult to be fully crushed. Finally, the sample is hammered and ground by the turning and grinding mechanism 7, thereby improving the sample crushing effect.

[0026] like Figure 1-Figure 3 As shown, a drying and grinding device for tea detection provided by the present invention, in this embodiment, the discharge gate 4 includes a limit plate 41 fixedly connected to the box body 1, and a lifting door 42 is slidably installed inside the limit plate 41, and a telescopic rod 43 is fixedly installed on the box body 1, and the movable end of the telescopic rod 43 is fixedly connected to one end of the lifting door 42, and a cleaning brush 12 is arranged at the bottom of the lifting door 42, and the cleaning brush 12 is in contact with the surface of the breathable and absorbent cloth 13.

[0027] After the sample is ground, the telescopic rod 43 drives the lifting door 42 to rise, so that a gap appears between the lifting door 42 and the surface of the breathable absorbent cloth 13, so that the power mechanism 8 can drive the breathable absorbent cloth 13 to move, so that the sample can be discharged from the gap.

[0028] like Figure 1-Figure 4 As shown, a drying and grinding device for tea detection provided by the present invention is provided. In this embodiment, the turning and grinding mechanism 7 includes a sliding rod 73 slidably mounted on the box body 1, a tension spring 74 is connected between the sliding rod 73 and the box body 1, and a tamping hammer 71 is fixedly connected to one end of the sliding rod 73 located inside the box body 1, and an active cavity 78 is provided at the bottom of the tamping hammer 71, and an extrusion block 72 is slidably mounted inside the active cavity 78, and a compression spring 79 is connected between the extrusion block 72 and the active cavity 78; In order to fix the extrusion block 72, a locking rod 77 is fixedly connected to the top of the extrusion block 72, and the locking rod 77 is slidably installed inside the sliding rod 73. A cylinder 76 is fixedly installed on the ram 71. A positioning groove adapted to the movable end of the cylinder 76 is opened on the side of the locking rod 77. Initially, when the movable end of the cylinder 76 is inserted into the positioning groove, one end of the extrusion block 72 extends out of the movable cavity 78. The top of the ram 71 is also fixedly connected with a guide rod 75, and the guide rod 75 penetrates and is slidably mounted on the box body 1; The material turning and grinding mechanism 7 also includes a reciprocating lifting mechanism 5, which is installed on the box body 1. The output end of the reciprocating lifting mechanism 5 is fixedly connected to the top of the sliding rod 73. The reciprocating lifting mechanism 5 is used to drive the sliding rod 73 to slowly descend and quickly rise.

[0029] During processing, the movable end of the cylinder 76 is inserted into the positioning groove on the locking rod 77, and then the reciprocating lifting mechanism 5 drives the sliding rod 73 and the ramming hammer 71 to slowly descend, and the ramming hammer 71 drives the extrusion block 72 to descend, and the extrusion block 72 will squeeze the breathable absorbent cloth 13 and form a depression in the middle of the breathable absorbent cloth 13. The samples located at both ends of the breathable absorbent cloth 13 will slide into the depression, and then the reciprocating lifting mechanism 5 drives the ramming hammer 71 and the extrusion block 72 to rise rapidly. Under the elastic force of the breathable absorbent cloth 13 itself and the elastic force of the spring 18, the breathable absorbent cloth 13 is lifted. 13 rebounds quickly, so under inertia, the breathable water-absorbent cloth 13 can bounce up the sample on its surface. Since the sample with more water has a larger weight, it will fall faster than the drier sample under the action of gravity. Therefore, the sample with more water will first fall on the surface of the breathable water-absorbent cloth 13, and the breathable water-absorbent cloth 13 can directly dry the sample with more water until the next material turning. Therefore, each time the material is turned, the relatively wet sample will first fall on the surface of the breathable water-absorbent cloth 13, so that the sample is dried more evenly and the sample is prevented from being burnt. After the sample is dried, the movable end of the cylinder 76 is retracted. When the reciprocating lifting mechanism 5 drives the tamping hammer 71 and the extrusion block 72 to slowly descend again, the extrusion block 72 will first contact the breathable absorbent cloth 13 and form a depression in the middle of the breathable absorbent cloth 13. The samples at both ends of the breathable absorbent cloth 13 will slide into the depression. At this time, the sample will be under the tamping hammer 71. When the extrusion block 72 contacts the bearing groove 15, the extrusion block 72 is blocked. Under the gravity of the tamping hammer 71 and the sliding rod 73 and the elastic force of the tension spring 74, the extrusion block 72 will retract into the movable cavity 78, and the tamping hammer 71 will crush the sample below it, and then the reciprocating lifting mechanism 5 will retract into the movable cavity 78. Structure 5 will drive the ram 71 to rise quickly, and the breathable absorbent cloth 13 will bounce the sample again. At this time, the volume of the crushed sample is small. Under the action of air resistance, the larger sample falls slowly and will be piled on the crushed sample. When the extrusion block 72 squeezes the breathable absorbent cloth 13 again, the larger sample will first contact the ram 71, and the ram 71 will crush it first. Therefore, each time the ramming is performed, the ram 71 will first crush the larger sample, so that the sample is crushed more evenly, and all samples can be crushed faster, thereby improving the crushing effect and efficiency.

[0030] like Figure 1-Figure 3 As shown, a drying and grinding device for tea detection provided by the present invention, in this embodiment, the reciprocating lifting mechanism 5 includes a support frame 54 fixedly connected to the box body 1, two fixed pulleys 51 are fixedly connected to the support frame 54, a pull rope 53 is transmission-connected between the two fixed pulleys 51, one end of the pull rope 53 is fixedly connected to the top of the sliding rod 73, the other end of the pull rope 53 is fixedly connected to a rack 58, a slide rail 57 is fixedly connected to the support frame 54, the rack 58 is slidably mounted on the slide rail 57, a counterweight block 52 is fixedly connected to the bottom of the rack 58, and the weight of the counterweight block 52 is greater than twice the sum of the weight of the tamping hammer 71, the weight of the extrusion block 72, the weight of the sliding rod 73 and the maximum elastic force of the tension spring 74; The box body 1 is also fixedly connected with a mounting frame 59 , on which a first motor 55 is fixedly mounted. An output shaft of the first motor 55 is fixedly connected with an incomplete gear 56 , and the incomplete gear 56 can mesh with a rack 58 .

[0031] The first motor 55 drives the incomplete gear 56 to rotate continuously. When the incomplete gear 56 is engaged with the rack 58, the incomplete gear 56 drives the rack 58 to rise, and the rack 58 releases the pull rope 53, thereby causing the sliding rod 73 and the ramming hammer 71 to slowly descend. When the incomplete gear 56 and the rack 58 are disengaged, the counterweight 52 drives the rack 58 and the pull rope 53 to descend rapidly, and the pull rope 53 pulls the sliding rod 73 and the ramming hammer 71 to rise rapidly.

[0032] like Figure 1-Figure 2 As shown, a drying and grinding device for tea detection provided by the present invention is provided. In this embodiment, the power mechanism 8 includes a second motor 81 fixedly mounted on the box body 1, and a transmission pair 82 is connected between the second motor 81 and one end of a cloth winding roller 16.

[0033] like Figure 1-Figure 3 As shown, a drying and grinding device for tea detection provided by the present invention, in the process of drying the sample, the moisture in the sample will be evaporated to form water vapor, if it is not treated, the water vapor will gather at the inner top of the box body 1, and then condense into water droplets, which will fall down again, therefore, in this embodiment, a first vacuum assembly 6 is also installed on the box body 1, the first vacuum assembly 6 includes a first vacuum pump 62 fixedly installed on the box body 1, the air inlet of the first vacuum pump 62 is connected to the first vacuum pipe 61, the end of the first vacuum pipe 61 extending into the interior of the box body 1 is connected to the air gathering hood 63, the air gathering hood 63 is installed on the box body 1 above the material chamber.

[0034] The first vacuum pump 62 extracts the air in the material cavity through the first vacuum pipe 61 and the air collecting hood 63, and the water vapor is also extracted together to prevent the water vapor from falling back onto the sample again.

[0035] like Figure 1-Figure 3 As shown, a drying and grinding device for tea detection provided by the present invention is provided. In order to automatically control the unlocking time of the cylinder 76, in this embodiment, a humidity sensor 64 is provided on the first exhaust pipe 61, and the humidity sensor 64 is electrically connected to the cylinder 76.

[0036] When the water vapor content in the air extracted from the first exhaust pipe 61 is low, the cylinder 76 is started to retract the movable end of the cylinder 76 and unlock the squeezing block 72 .

[0037] like Figure 1-Figure 2 and Figure 5 As shown, a drying and grinding device for tea detection provided by the present invention is provided. When the moisture on the breathable absorbent cloth 13 is dried, the water vapor evaporated from the breathable absorbent cloth 13 will be contaminated by the breathable absorbent cloth 13 again. Therefore, in this embodiment, the cloth rolling roller 16 adopts a hollow structure, and a second air extraction component 9 is also installed on the box body 1. The second air extraction component 9 includes a second air extraction pump 92 fixedly installed on the box body 1, and the air inlet of the second air extraction pump 92 is connected to a second air extraction pipe 91. The two ends of the second air extraction pipe 91 are respectively connected to one end of the two cloth rolling rollers 16 through a rotating joint. An air inlet hole 93 for ventilation is provided on the box body 1, and an air extraction hole 22 connected to the second air extraction pipe 91 is provided on the side of the two cloth rolling rollers 16.

[0038] When drying the breathable absorbent fabric 13, the second vacuum pump 92 is started, and the second vacuum pump 92 extracts the air in the fabric roll 16 through the second vacuum pipe 91. Under negative pressure, the air in the box 1 passes through the breathable absorbent fabric 13 and the vacuum hole 22 and enters the fabric roll 16, and takes away the evaporated water vapor, thereby preventing the water vapor from condensing on the breathable absorbent fabric 13 again. Since the water vapor moves from the outside of the cloth rolling roller 16 to the inside of the cloth rolling roller 16, the breathable absorbent cloth 13 on the outside of the cloth rolling roller 16 can be dried first, so that the breathable absorbent cloth 13 dried first can contact the sample and dry the sample. The inner side of the cloth roll wound on the cloth rolling roller 16 is in contact with the cloth rolling roller 16 for a longer time, and the heating sleeve 17 can fully dry the breathable absorbent cloth 13.

[0039] like Figure 1-Figure 2As shown, a drying and grinding device for tea detection provided by the present invention is provided. In order to improve the sample quality, in this embodiment, a filter screen 20 is further installed inside the box body 1, and the filter screen 20 is installed below one end of the breathable and water-absorbent cloth 13. A discharge plate 19 is also installed below the filter screen 20, and a vibration motor 21 is fixedly installed on the filter screen 20. A coarse material outlet 3 and a fine material outlet 2 are provided on the box body 1, which are respectively connected to the filter screen 20 and the discharge plate 19, and inspection doors are installed on the coarse material outlet 3 and the fine material outlet 2.

[0040] Working principle: Pour the sample into the box body 1 from the loading port 10, cover it with a sealing cover, and then start the second motor 81, the second vacuum pump 92, the heating jacket 17, the first motor 55 and the first vacuum pump 62; The second motor 81 drives the cloth-winding roller 16 to make forward and reverse motions through the transmission pair 82, and the cloth-winding roller 16 drives the breathable water-absorbing cloth 13 to make reciprocating motions, and the heating sleeve 17 heats the breathable water-absorbing cloth 13. When the sample contacts the heated part of the breathable water-absorbing cloth 13, the breathable water-absorbing cloth 13 will dry the sample; At the same time, the first motor 55 drives the rack 58 to move up and down through the incomplete gear 56, and the rack 58 drives the sliding rod 73 and the ramming hammer 71 to move up and down through the pull rope 53, and the ramming hammer 71 squeezes the breathable and absorbent cloth 13 and quickly rises to turn the sample; At the same time, the first vacuum pump 62 extracts the water vapor in the material cavity through the first vacuum pipe 61. When the humidity sensor 64 detects that the humidity in the first vacuum pipe 61 is low or no, it indicates that the sample has been dried. At this time, the active end of the cylinder 76 is shortened. When the ramming hammer 71 drives the extrusion block 72 to descend again, the extrusion block 72 will retract into the active cavity 78, and the ramming hammer 71 will pound the sample to crush the sample. After the sample is completely crushed, the lifting door 42 is driven to rise by the telescopic rod 43, and the second motor 81 drives the sample to move toward the filter screen 20 through the breathable absorbent cloth 13, so that the sample on the breathable absorbent cloth 13 falls onto the filter screen 20, and the vibration motor 21 vibrates the filter screen 20, so that qualified samples fall onto the discharge plate 19, and unqualified samples remain on the filter screen 20, and finally the samples are taken out from the fine material outlet 2 and the coarse material outlet 3.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0042] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A drying and grinding device for tea detection, comprising a box, characterized in that: Two transmission rollers and two cloth-rolling rollers are rotatably installed inside the box, one of the cloth-rolling rollers is wound with a breathable and water-absorbent cloth, one end of the breathable and water-absorbent cloth passes around the two transmission rollers and is wound around the other cloth-rolling roller, and both of the cloth-rolling rollers are provided with heating sleeves; A material guide plate and a material discharge gate are fixedly installed inside the box body. Initially, one end of the material guide plate and the material discharge gate are in contact with the surface of the breathable water-absorbent cloth, and a material cavity is formed between the material guide plate, the material discharge gate and the breathable water-absorbent cloth. A feeding port connected to the material cavity is opened on the box body; A bearing groove is fixedly installed inside the box, and the bearing groove is located below the breathable water-absorbing cloth. A material turning and grinding mechanism is installed on the box, and the material turning and grinding mechanism is located directly above the bearing groove. The bearing groove and the material turning and grinding mechanism are respectively located on both sides of the breathable water-absorbing cloth. Before the sample is completely dried, the material turning and grinding mechanism is used to slowly squeeze the breathable water-absorbing cloth and quickly rise. After the sample is completely dried, the material turning and grinding mechanism is used to squeeze the sample into the bearing groove; A power mechanism is installed on the box body, and the output end of the power mechanism is connected to one end of a cloth winding roller. The power mechanism is used to drive the cloth winding roller to rotate reciprocatingly, and a clockwork spring is arranged between the other cloth winding roller and the box body.

2. The tea leaf testing drying and grinding device according to claim 1, characterized in that: The discharging gate comprises a limit plate fixedly connected to a box body, a lifting door is slidably installed inside the limit plate, a telescopic rod is fixedly installed on the box body, and a movable end of the telescopic rod is fixedly connected to one end of the lifting door.

3. The tea drying and grinding device for detecting tea leaves according to claim 1, characterized in that: The material turning and grinding mechanism comprises a sliding rod slidably mounted on a box body, a tension spring is connected between the sliding rod and the box body, a ram is fixedly connected to one end of the sliding rod located inside the box body, a movable cavity is provided at the bottom of the ram, an extrusion block is slidably mounted inside the movable cavity, and a compression spring is connected between the extrusion block and the movable cavity; The top of the extrusion block is fixedly connected with a locking rod, and the locking rod is slidably installed inside the sliding rod. A cylinder is fixedly installed on the ram. A positioning groove adapted to the movable end of the cylinder is opened on the side of the locking rod. Initially, when the movable end of the cylinder is inserted into the positioning groove, one end of the extrusion block extends out of the movable cavity. The material turning and grinding mechanism also includes a reciprocating lifting mechanism, which is installed on the box body. The output end of the reciprocating lifting mechanism is fixedly connected to the top of the sliding rod. The reciprocating lifting mechanism is used to drive the sliding rod to slowly descend and quickly rise.

4. The tea drying and grinding device for detecting tea leaves according to claim 3, characterized in that: The reciprocating lifting mechanism includes a support frame fixedly connected to the box body, two fixed pulleys are fixedly connected to the support frame, a pull rope is transmission-connected between the two fixed pulleys, one end of the pull rope is fixedly connected to the top of the sliding rod, the other end of the pull rope is fixedly connected to a rack, a slide rail is fixedly connected to the support frame, the rack is slidably mounted on the slide rail, a counterweight block is fixedly connected to the bottom of the rack, and the weight of the counterweight block is greater than twice the sum of the weight of the ramming hammer, the weight of the extrusion block, the weight of the sliding rod and the maximum elastic force of the tension spring; The box body is also fixedly connected with a mounting frame, and a first motor is fixedly mounted on the mounting frame. An output shaft of the first motor is fixedly connected with an incomplete gear, and the incomplete gear can mesh with the rack.

5. The tea drying and grinding device for detecting tea leaves according to claim 1, characterized in that: The power mechanism comprises a second motor fixedly mounted on the box body, and a transmission pair is connected between the second motor and one end of a cloth winding roller.

6. The tea leaf testing drying and grinding device according to claim 3, characterized in that: A first vacuum assembly is also installed on the box body, and the first vacuum assembly includes a first vacuum pump fixedly installed on the box body. The air inlet of the first vacuum pump is connected to a first vacuum pipe. One end of the first vacuum pipe extending into the interior of the box body is connected to a gas gathering hood, and the gas gathering hood is installed on the box body above the material chamber.

7. The tea leaf testing drying and grinding device according to claim 6, characterized in that: The first air extraction pipe is provided with a humidity sensor, and the humidity sensor is electrically connected to the cylinder.

8. The tea leaf testing drying and grinding device according to claim 1, characterized in that: The cloth winding roller adopts a hollow structure, and a second air suction component is also installed on the box body. The second air suction component includes a second air suction pump fixedly installed on the box body. The air inlet of the second air suction pump is connected to a second air suction pipe. The two ends of the second air suction pipe are respectively connected to one end of the two cloth winding rollers through a rotating joint. An air inlet hole for ventilation is opened on the box body, and air suction holes connected to the second air suction pipe are opened on the sides of the two cloth winding rollers.

9. The tea leaf testing drying and grinding device according to claim 1, characterized in that: A filter screen is also installed inside the box body, and the filter screen is installed below one end of the breathable absorbent cloth. A discharge plate is also installed below the filter screen, and a vibration motor is fixedly installed on the filter screen. The box body is provided with a coarse material outlet and a fine material outlet respectively connected to the filter screen and the discharge plate.

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