Low-temperature drying and pulverizing apparatus and method for pulverizing raw material of whitening active compound

Abstract

The present application relates to freeze-dried grinding crushing technical field, disclose a kind of low-temperature drying crushing equipment and the crushing method for whitening active compound raw material, including freeze dryer, mounting in freeze dryer inside backing plate and grinder shell, also include grinding assembly and equal collection component.The present application is by being arranged in freeze dryer inside backing plate, grinder shell, grinding assembly and equal collection component, flower freeze-drying is directly carried out grinding work, without transfer, to improve processing efficiency, and reduce flower and external humidity contact, prevent flower metamorphism, effectively guarantee the quality of flower powder, by setting grinding assembly can continue to throw flower, improve the contact frequency of flower and grinder, improve grinding efficiency, by setting equal collection component can control multiple cup body rotation equal amount of material, without subsequent weighing distribution of operator, save time and manpower.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of freeze-dried material grinding and crushing, in particular to a low-temperature drying and crushing equipment and a crushing method for whitening active compound raw materials. BACKGROUND

[0002] Experiments have proved that a certain concentration of a part of plant compound extract can have good inhibition of melanin synthesis and achieve whitening effect. For example, the compound extract of rose and osmanthus needs to be low-temperature dried and then ground into powder during preparation. Then, an appropriate amount of the pre-crushed rose powder and an appropriate amount of the osmanthus powder are weighed in a beaker, distilled water is added and microwaved. Then, an appropriate amount of cellulase, pectinase and neutral protease are weighed in the beaker, adjusted to pH 5.5, stirred on a magnetic stirrer, then placed in a water bath for 10 minutes to inactivate the enzyme, and finally centrifuged at 5000 rpm for 10 minutes. The supernatant is the rose and osmanthus compound liquid.

[0003] In the above rose and osmanthus compound liquid extraction technology, the pretreatment of the rose and osmanthus generally involves low-temperature drying in a freeze dryer, then taking out and grinding into powder using a grinder. Finally, the appropriate amount of petal powder is weighed. There are some disadvantages in using the existing grinder. Chinese patent application CN116273409B discloses a rose freeze-drying and grinding device. Although the device can grind more finely, the grinding efficiency is low, and the ground powder needs to be manually weighed and packaged, which consumes a lot of time. In addition, some powder may adhere to the inner wall of the grinding equipment, causing some loss and reducing the utilization rate of the petals.

[0004] At present, there is no effective solution to the problems in the related art. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a low-temperature drying and crushing equipment and a crushing method for whitening active compound raw materials, which has the advantages of high grinding efficiency, equal feeding and low powder loss, and solves the problems of low efficiency, inability to weigh and package, and insufficient utilization rate of petals in the existing freeze-dried petal grinding equipment.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a low-temperature drying and crushing equipment, comprising a freeze dryer, a supporting plate installed inside the freeze dryer, and a grinder shell, further comprising a grinding assembly and an equal collection assembly;

[0007] The grinding assembly is installed in the freeze dryer and extends into the grinder shell. The grinding assembly comprises a grinder that can rotate and a screen. The grinding assembly is used to grind the material;

[0008] The equal amount collecting assembly is installed in the freeze dryer, and the equal amount collecting assembly comprises a plurality of cup bodies capable of moving to the bottom of the grinding machine shell and a weight sensor installed at the bottom of the cup body, and is used for equal amount collecting of the ground powder;

[0009] The material on the tray is dried when the freeze dryer is running, the grinding assembly is running to drive the grinder and the screen to rotate at the same time, thereby grinding the material, and the ground powder falls into the cup body;

[0010] When the cup body collects the appropriate amount of ground powder, the equal amount collecting assembly is running to drive the cup body to move to the bottom of the grinding machine shell in sequence, thereby realizing equal amount collecting.

[0011] Preferably, the freeze dryer is internally provided with a discharging assembly, the discharging assembly is in transmission connection with the tray, the discharging assembly is used for driving the tray to rotate, and the discharging assembly is running to drive the tray to rotate to pour the material into the grinding machine shell.

[0012] Preferably, the grinding machine shell comprises a main shell, a feeding hopper fixed on one side of the main shell, and a discharging hopper fixed at the bottom of the main shell, the feeding hopper is fixed to the inner wall of the freeze dryer, and the discharging hopper is internally provided with a butterfly valve.

[0013] Preferably, the grinding assembly comprises a mounting frame fixed to the inner wall of the freeze dryer, a second motor is fixed on the mounting frame, a first gear is fixed on the output shaft of the second motor, the output shaft of the second motor extends to the inside of the main shell, the grinder is arranged in the inside of the main shell and is fixed to the output shaft of the second motor, a sleeve is further rotationally connected to the output shaft of the second motor, a fourth gear is fixed to one end of the sleeve, the other end of the sleeve extends to the inside of the main shell, the screen is arranged in the inside of the main shell and is fixedly connected to the sleeve, and the grinding assembly further comprises a transmission shaft, the transmission shaft is rotationally connected to the mounting frame, a second gear and a third gear are fixedly connected to the transmission shaft, the second gear is engaged with the first gear, and the third gear is engaged with the fourth gear.

[0014] Preferably, the equal amount collecting assembly comprises a first vertical shaft fixed to the bottom wall in the freeze dryer and a third motor fixed to the inner side wall of the freeze dryer, a driven gear is rotationally connected to the first vertical shaft, a plurality of weight sensors are arranged in a ring array and fixed to the surface of the driven gear, a cup holder is fixed to the top of the weight sensor, the cup body is inserted into the cup holder, a driving gear is fixed to the output shaft of the third motor, and the driving gear is engaged with the driven gear.

[0015] Preferably, a vibration assembly is installed inside the freeze dryer, the vibration assembly is located on one side of the grinder shell, the vibration assembly is in transmission connection with the equal collection assembly, the vibration assembly comprises a reciprocating vibration rod, and the vibration assembly operates to force the reciprocating vibration rod to knock the grinder shell, so that the material adhered to the inner wall of the grinder shell falls off.

[0016] The vibration assembly further comprises a second vertical shaft, a first horizontal shaft and a second horizontal shaft, the second vertical shaft is rotationally connected to the bottom wall inside the freeze dryer, the fifth gear and the first bevel gear are fixedly connected to the second vertical shaft, the fifth gear is in meshing connection with the driven gear, the first horizontal shaft and the second horizontal shaft are fixedly connected to the inner side wall of the freeze dryer, the second bevel gear is rotationally connected to the end of the first horizontal shaft, the second bevel gear is in meshing connection with the first bevel gear, the second bevel gear is provided with a push rod, one end of the push rod is rotationally connected to the edge of the second bevel gear, the other end of the push rod is hingedly connected to the vibration rod, one end of the vibration rod, away from the push rod, extends to one side of the grinder shell, and the middle of the vibration rod is rotationally connected to the second horizontal shaft.

[0017] Preferably, the mounting frame is provided with a separation assembly, the separation assembly comprises a movable ring slidingly installed on the sleeve, the movable ring is provided with an annular pin, the annular pin is in rotational connection with the movable ring through a bearing, one end of the annular pin is inserted into the grinder shell, and the other end of the annular pin is fixedly connected with a support rod, the separation assembly further comprises a cylinder fixed to the mounting frame, and the output end of the cylinder is fixedly connected with the support rod.

[0018] Preferably, the surface of the sleeve is provided with a plurality of groups of annularly arranged sliding grooves, and the inner wall of the movable ring is fixedly provided with a plurality of groups of annularly arranged sliding blocks; and the movable ring is in sliding connection with the sleeve through the sliding grooves and the sliding blocks.

[0019] Preferably, the outer edge of the one end, connected with the grinder shell, of the annular pin is provided with a chamfer.

[0020] The application further discloses a crushing method for the whitening active compound raw material, and the low-temperature drying and crushing equipment is used.

[0021] Compared with the prior art, the low-temperature drying and crushing equipment and the crushing method for the whitening active compound raw material have the following beneficial effects:

[0022] 1. The low-temperature drying and crushing equipment and the method for crushing the raw material of the whitening active compound, by setting the supporting plate, the grinder shell, the grinding assembly and the equal collecting assembly in the freeze dryer, the flowers are directly ground after being freeze-dried, without the need for transfer, thereby improving the processing efficiency, and reducing the contact of the flowers with external moisture to prevent the deterioration of the flowers, effectively ensuring the quality of the flower powder, by setting the grinding assembly, the flowers can be continuously scattered to improve the contact frequency of the flowers with the grinder, thereby improving the grinding efficiency, and by setting the equal collecting assembly, the multiple cups can be controlled to rotate and collect the material in equal amounts, without the need for subsequent weighing and distribution by the operator, thereby saving time and manpower.

[0023] 2. The low-temperature drying and crushing equipment and the method for crushing the raw material of the whitening active compound, by setting the vibration assembly, the grinder shell can also be intermittently knocked, and the powder adhered to the inside of the grinder shell is caused to fall off by the vibration effect, thereby improving the collection rate of the powder and the utilization rate of the flowers, and reducing the loss, by setting the separation assembly, the annular pin on the sleeve can be temporarily separated from the grinder shell when the vibration assembly is running, thereby causing the screen and the grinder to be separated from the grinder shell, and the vibration of the grinder shell will not affect the screen and the grinder, avoiding the loosening and damage of the screen and the grinder due to vibration, ensuring the stability of the screen and the grinder, and by setting the chamfer at the end of the annular pin, the positioning of the annular pin is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of a low-temperature drying and crushing equipment of the present application;

[0025] Figure 2 It is a sectional view of a low-temperature drying and crushing equipment of the present application;

[0026] Figure 3 It is a sectional view of a low-temperature drying and crushing equipment of the present application; Figure 2 It is an enlarged view of part A of the low-temperature drying and crushing equipment of the present application;

[0027] Figure 4 It is a sectional view of a grinder shell of the present application;

[0028] Figure 5 It is a structural schematic view of a grinding assembly of the present application;

[0029] Figure 6 It is an enlarged view of part B of the low-temperature drying and crushing equipment of the present application; Figure 5 It is an enlarged view of part C of the low-temperature drying and crushing equipment of the present application;

[0030] Figure 7 It is a structural schematic view of a vibration assembly of the present application;

[0031] Figure 8 It is an enlarged view of part C of the low-temperature drying and crushing equipment of the present application; Figure 7 It is an enlarged view of part C of the low-temperature drying and crushing equipment of the present application;

[0032] Figure 9Structure diagram of the separation assembly of the present application.

[0033] In the figure: 1, freeze dryer; 2, tray; 3, grinder shell; 31, main shell; 32, feeding hopper; 33, discharging hopper; 34, butterfly valve; 4, discharging assembly; 401, rotating shaft; 402, connecting pipe; 403, worm gear; 404, first motor; 405, bidirectional worm; 406, bearing seat; 5, grinding assembly; 501, grinder; 502, screen; 503, mounting frame; 504, second motor; 505, first gear; 506, sleeve; 507, fourth gear; 508, transmission shaft; 509, second gear; 510, third gear; 6, equal collection assembly; 601, cup body; 602, weight sensor; 603, third motor; 604, driven gear; 605, first vertical shaft; 606, cup holder; 607, driving gear; 7, vibration assembly; 701, vibration rod; 702, second vertical shaft; 703, first horizontal shaft; 704, second horizontal shaft; 705, fifth gear; 706, first bevel gear; 707, second bevel gear; 708, push rod; 8, separation assembly; 801, movable ring; 802, ring pin; 803, support rod; 804, air cylinder. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0035] As introduced in the background, the deficiencies in the prior art exist, in order to solve the above technical problems, the present application provides a low-temperature drying and crushing equipment and a crushing method for whitening active compound raw materials.

[0036] Please refer to Figures 1-4 , the low-temperature drying and crushing equipment, comprising a freeze dryer 1, a tray 2 and a grinder shell 3 installed inside the freeze dryer 1, and further comprising a discharging assembly 4, a grinding assembly 5, an equal collection assembly 6 and a vibration assembly 7;

[0037] The discharging assembly 4 is installed inside the freeze dryer 1 and in driving connection with the tray 2, and the discharging assembly 4 is used to drive the tray 2 to rotate;

[0038] The grinding assembly 5 is installed inside the freeze dryer 1 and extends into the grinder shell 3, and the grinding assembly 5 comprises a grinder 501 and a screen 502 capable of rotating, and the grinding assembly 5 is used to grind materials;

[0039] The equal amount collecting assembly 6 is installed inside the freeze dryer 1, and comprises a plurality of cup bodies 601 capable of moving to the bottom of the grinding machine shell 3 and a weight sensor 602 installed at the bottom of the cup body 601, and is used for equal amount collecting of the ground powder;

[0040] The vibration assembly 7 is installed inside the freeze dryer 1 and located at one side of the grinding machine shell 3, and is in transmission connection with the equal amount collecting assembly 6, and comprises a reciprocating vibration rod 701, and is used for driving the grinding machine shell 3 to vibrate;

[0041] When the freeze dryer 1 is running, the material on the tray 2 is dried, the discharging assembly 4 is running to force the tray 2 to rotate and pour the material into the grinding machine shell 3, and the grinding assembly 5 is running to force the grinder 501 and the screen 502 to rotate at the same time, so as to grind the material, and the ground powder falls into the cup body 601;

[0042] When the cup body 601 collects the appropriate amount of ground powder, the equal amount collecting assembly 6 is running to force the cup body 601 to move to the bottom of the grinding machine shell 3 in sequence, so as to realize equal amount collecting, and at the same time, the equal amount collecting assembly 6 is running to drive the vibration assembly 7 to run, and the vibration assembly 7 is running to force the vibration rod 701 to reciprocatingly knock the grinding machine shell 3, so as to force the material adhered to the inner wall of the grinding machine shell 3 to fall off;

[0043] In the embodiment, the ground material is set as the screened rose or osmanthus, the principle of the freeze dryer 1 is the prior art, and will not be described in detail here, the tray 2 is at least set as a group, each group comprises two trays 2 with edge fitting and position symmetry, the number of the discharging assembly 4 matches the number of the groups of the tray 2, and the tray 2 is set in a horizontal state in the initial state, and the surface is used for placing the flowers, the freeze dryer 1 is provided with a device controller, the weight sensor 602 is electrically connected with the device controller, and is used for monitoring the weight of the powder collected in the cup body 601, the structure of the grinder 501 and the screen 502 is the same as the prior art, and the principle is mainly to realize the crushing of the material through the impact and shearing of the rotating grinder 501 and the material, so as to meet the powder of different sizes discharged from the screen 502;

[0044] In use, the flowers are placed on the surface of the tray 2, and the freeze dryer 1 is started for dehydration drying. After drying, the discharging assembly 4 is started, and the tray 2 is driven to rotate when the discharging assembly 4 is running, so that the tray 2 is inclined. After the tray 2 is inclined, the freeze-dried flowers slide along the tray 2 and fall into the grinding machine housing 3. At this time, the grinding assembly 5 is started, and the grinder 501 and the screen 502 rotate when the grinding assembly 5 is running. The grinder 501 shears and collides with the freeze-dried flowers when rotating, thereby forming qualified powder and passing through the screen 502. The rotation of the screen 502 can re-sprinkle the unqualified freeze-dried flowers that fall on the inner wall of the screen 502, so that they continue to contact the grinder 501, thereby improving the grinding efficiency. The qualified powder falls from the bottom of the grinding machine housing 3 into the cup body 601. The weight sensor 602 monitors the weight in the cup body 601. When reaching the specified standard, the equal collection assembly 6 is started. The equal collection assembly 6 drives another empty cup body 601 to move to the bottom of the grinding machine housing 3 for collection when running. The weight of the powder in the cup body 601 just meets the demand. At the same time, the equal collection assembly 6 also drives the vibration assembly 7 to run when running. The vibration assembly 7 drives the vibration rod 701 to reciprocate when running, thereby knocking the grinding machine housing 3, so that the powder adhered to the inner wall of the grinding machine housing 3 falls, thereby reducing the loss of powder.

[0045] By arranging the tray 2, the grinding machine housing 3, the discharging assembly 4, the grinding assembly 5, the equal collection assembly 6 and the vibration assembly 7 in the freeze dryer 1, the flowers can be directly ground after freeze-drying without transfer, thereby improving the processing efficiency and reducing the contact of the flowers with external moisture to prevent the deterioration of the flowers and effectively ensure the quality of the flower powder. By arranging the grinding assembly 5, the contact frequency of the flowers with the grinder 501 can be improved, thereby improving the grinding efficiency. By arranging the equal collection assembly 6, multiple cup bodies 601 can be controlled to collect the material in turn without subsequent weighing and distribution by the operator, thereby saving time and manpower. By arranging the vibration assembly 7, the grinding machine housing 3 can also be intermittently knocked, and the powder adhered to the inside of the grinding machine housing 3 can be made to fall by the vibration effect, thereby improving the collection rate of the powder, improving the utilization rate of the flowers and reducing the loss.

[0046] Further, Figure 2 and Figure 3The discharging assembly 4 comprises two parallel rotating shafts 401 fixed on the inner wall of the freeze dryer 1, the two supporting plates 2 are arranged on the top of the two rotating shafts 401 respectively, the two connecting pipes 402 are rotatably connected to the two rotating shafts 401 respectively, the two connecting pipes 402 are fixed to the bottom of the two supporting plates 2 respectively, the two connecting pipes 402 are fixedly connected with the worm gears 403 at the end portions, the discharging assembly 4 further comprises a first motor 404 fixed on the inner wall of the freeze dryer 1, the output shaft of the first motor 404 is fixed with a bidirectional worm 405, the bidirectional worm 405 is engaged with the two worm gears 403, the bidirectional worm 405 is provided with two bearing seats 406, and the two bearing seats 406 are fixed to the inner wall of the freeze dryer 1;

[0047] The surface of the bidirectional worm 405 is provided with two groups of threads with opposite rotation directions, the two groups of threads are matched with the two worm gears 403 respectively, and the bearing seat 406 is installed on the bidirectional worm 405 through bearings;

[0048] In use, the first motor 404 is started, the first motor 404 drives the bidirectional worm 405 to rotate, the bidirectional worm 405 drives the two worm gears 403 to rotate at the same time, and the rotating directions are opposite, the worm gears 403 drive the connecting pipes 402 to rotate, the connecting pipes 402 drive the supporting plates 2 to rotate around the rotating shafts 401, the supporting plates 2 are inclined after rotating, the freeze-dried flowers on the surface slide along the supporting plates and fall into the grinding machine shell 3 at the bottom;

[0049] The discharging assembly 4 matched with the supporting plates 2 is arranged, the first motor 404 is used for driving the two supporting plates 2 to be inclined at the same time, and then the freeze-dried flowers are poured into the grinding machine shell 3 at the bottom, which is beneficial to grinding the flowers in the freeze dryer 1 after freeze-drying, without transfer, improves the efficiency, and reduces the contact of the freeze-dried flowers with the external moisture, so as to ensure the quality and activity of the freeze-dried flowers.

[0050] Further, refer to Figures 4-6The grinder shell 3 includes a main shell 31, a feeding hopper 32 fixed on one side of the main shell 31, and a discharging hopper 33 fixed on the bottom of the main shell 31. The feeding hopper 32 is fixed to the inner wall of the freeze dryer 1. The butterfly valve 34 is installed in the discharging hopper 33. The grinding assembly 5 includes a mounting frame 503 fixed to the inner wall of the freeze dryer 1. The second motor 504 is fixed to the mounting frame 503. The first gear 505 is fixed to the output shaft of the second motor 504. The output shaft of the second motor 504 extends into the main shell 31. The grinder 501 is arranged in the main shell 31 and is fixed to the output shaft of the second motor 504. The sleeve 506 is also rotatably connected to the output shaft of the second motor 504. The fourth gear 507 is fixed to one end of the sleeve 506. The other end of the sleeve 506 extends into the main shell 31. The screen 502 is arranged in the main shell 31 and is fixedly connected to the sleeve 506. The grinding assembly 5 further includes a transmission shaft 508 rotatably connected to the mounting frame 503. The second gear 509 and the third gear 510 are fixedly connected to the transmission shaft 508. The second gear 509 is engaged with the first gear 505. The third gear 510 is engaged with the fourth gear 507.

[0051] The butterfly valve 34 in the discharging hopper 33 is the same as the prior art. The butterfly valve 34 is arranged as an electromagnetic valve and is controlled by the device controller. The transmission shaft 508 is parallelly distributed with the output shaft of the second motor 504.

[0052] In use, the fallen freeze-dried flowers fall into the feeding hopper 32 and then slide along the feeding hopper 32 into the main shell 31. The second motor 504 is started. When the second motor 504 operates, it drives the first gear 505 and the grinder 501 to rotate. The rotating grinder 501 grinds the freeze-dried flowers. The formed powder passes through the screen 502 and then falls into the discharging hopper 33. Finally, it falls from the bottom of the discharging hopper 33. At the same time, when the first gear 505 rotates, it drives the second gear 509 to rotate. When the second gear 509 rotates, it drives the transmission shaft 508 and the third gear 510 to rotate. When the third gear 510 rotates, it drives the fourth gear 507 to rotate. When the fourth gear 507 rotates, it drives the sleeve 506 to rotate. When the sleeve 506 rotates, it drives the screen 502 to rotate. When the screen 502 rotates, it continuously throws the freeze-dried flowers on the inner wall into the air, increasing the contact frequency of the freeze-dried flowers with the grinder 501, thereby improving the grinding efficiency.

[0053] By arranging the grinding assembly 5, the second motor 504 can drive the grinder 501 and the screen 502 to rotate simultaneously. The rotation of the screen 502 continuously throws the freeze-dried flowers into the air, thereby increasing the contact frequency with the grinder 501 to improve the grinding efficiency.

[0054] Further, referring to Figure 7 andFigure 8 The equivalent collection assembly 6 comprises a first vertical shaft 605 fixed to the bottom wall of the freeze dryer 1 and a third motor 603 fixed to the side wall of the freeze dryer 1, a driven gear 604 is rotatably connected to the first vertical shaft 605, the weight sensors 602 are arranged in a plurality and in a ring array on the surface of the driven gear 604, a cup holder 606 is fixed to the top of the weight sensors 602, the cup body 601 is inserted into the cup holder 606, and a driving gear 607 is fixed to the output shaft of the third motor 603 and engaged with the driven gear 604;

[0055] The third motor 603 is electrically connected with the equipment controller, the inner diameter of the cup holder 606 is the same as the outer diameter of the cup body 601, the cup holder 606 is used to stabilize the cup body 601, and in actual application, one of the cup bodies 601 is located at the bottom of the discharging funnel 33.

[0056] In use, the powder formed after grinding the flowers falls from the bottom of the grinding machine shell 3 into the cup body 601, the weight sensor 602 monitors the weight of the powder in the cup body 601, when the weight reaches the set standard, the butterfly valve 34 is closed, the weight sensor 602 transmits an electrical signal to the equipment controller, the equipment controller controls the third motor 603 to operate, the third motor 603 drives the driving gear 607 to rotate when operating, the driving gear 607 drives the driven gear 604 to rotate when rotating, and the driven gear 604 moves a new empty cup body 601 to the bottom of the grinding machine shell 3 after rotating by a certain angle, and then the butterfly valve 34 is opened to collect the powder again.

[0057] By arranging the equivalent collection assembly 6, the weight sensor 602 can monitor the weight of the powder collected in the cup body 601, when the weight reaches the set standard, the third motor 603 drives the driven gear 604 to rotate, and then drives another empty cup body 601 to collect the powder, so as to realize equivalent collection, compared with the prior art, subsequent weighing is not required, time and labor are saved.

[0058] Further, referring to Figure 7 and Figure 8The vibration assembly 7 comprises a second vertical shaft 702, a first horizontal shaft 703 and a second horizontal shaft 704. The bottom end of the second vertical shaft 702 is rotationally connected with the inner bottom wall of the freeze dryer 1. The fifth gear 705 and the first bevel gear 706 are fixedly connected with the second vertical shaft 702. The fifth gear 705 is engaged with the driven gear 604. The first horizontal shaft 703 and the second horizontal shaft 704 are fixedly connected with the inner side wall of the freeze dryer 1. The second bevel gear 707 is rotationally connected with the end of the first horizontal shaft 703. The second bevel gear 707 is engaged with the first bevel gear 706. The push rod 708 is arranged on the surface of the second bevel gear 707. One end of the push rod 708 is rotationally connected with the edge of the second bevel gear 707. The other end of the push rod 708 is hingedly connected with the vibration rod 701. The vibration rod 701 extends to one side of the grinder shell 3 from the end away from the push rod 708. The middle part of the vibration rod 701 is rotationally connected with the second horizontal shaft 704.

[0059] The vibration rod 701 is a metal rod with elasticity. The end of the metal rod is fixedly wrapped with a rubber sleeve. When the driven gear 604 rotates, the fifth gear 705 is driven to rotate. When the fifth gear 705 rotates, the second vertical shaft 702 and the first bevel gear 706 are driven to rotate. When the first bevel gear 706 rotates, the second bevel gear 707 is driven to rotate. When the second bevel gear 707 rotates, the one end of the push rod 708 is driven to move. The other end of the push rod 708 reciprocatingly pushes the one end of the vibration rod 701 to reciprocatingly move. Thus, the vibration rod 701 reciprocatingly swings. When the vibration rod 701 swings, it knocks the grinder shell 3. Thus, the grinder shell 3 is vibrated. Thus, the powder attached to the inner wall of the grinder shell 3 is shaken off.

[0060] When the cup 601 is switched, the vibration assembly 7 is driven to operate. The vibration rod 701 is forced to knock the grinder shell 3. Thus, the grinder shell 3 is vibrated. Thus, the powder attached to the inner wall of the grinder shell 3 is shaken off and collected. The loss is reduced. The utilization rate of the flowers is improved.

[0061] Further, refer to Figure 6 and Figure 9The mounting frame 503 is provided with a separation assembly 8, the separation assembly 8 comprises a movable ring 801 slidingly mounted on a sleeve 506, an annular pin 802 is sleeved outside the movable ring 801, the annular pin 802 is rotatably connected with the movable ring 801 through a bearing, one end of the annular pin 802 is inserted into the grinder shell 3, the other end of the annular pin 802 is fixedly connected with a support rod 803, the separation assembly 8 further comprises a pneumatic cylinder 804 fixedly connected with the mounting frame 503, an output end of the pneumatic cylinder 804 is fixedly connected with the support rod 803, a plurality of groups of annular array distribution sliding grooves are arranged on the surface of the sleeve 506, a plurality of groups of annular array distribution sliding blocks are fixedly arranged on the inner wall of the movable ring 801, the movable ring 801 is slidingly connected with the sleeve 506 through the sliding grooves and the sliding blocks, and the outer edge of the end of the annular pin 802 connected with the grinder shell 3 is provided with a chamfer;

[0062] The grinder shell 3 is provided with a through hole with the same diameter as the annular pin 802, the annular pin 802, the sleeve 506 and the output shaft of the first motor 404 all penetrate through the through hole, the pneumatic cylinder 804 is provided with two, and the output ends of the two pneumatic cylinders 804 are fixedly connected with the support rod 803, in use, when the vibration assembly 7 operates, the pneumatic cylinder 804 is started, the pneumatic cylinder 804 is contracted to drive the support rod 803 to move, the support rod 803 drives the annular pin 802 to move when moving, the annular pin 802 drives the movable ring 801 inside to slide along the sleeve 506 after moving, and finally the annular pin 802 is separated from the grinder shell 3, the grinder shell 3 vibrates under the action of the vibration assembly 7, since the annular pin 802 is separated from the grinder shell 3, the screen 502 and the grinder 501 are not in contact with the shell of the grinder 501 at this time, and are not affected by the vibration effect, when the vibration assembly 7 stops operating, the pneumatic cylinder 804 is started again, and the pneumatic cylinder 804 drives the annular pin 802 to reset again;

[0063] By arranging the separation assembly 8, the annular pin 802 on the sleeve 506 can be driven to be separated from the grinder shell 3 for a short time when the vibration assembly 7 operates, so that the screen 502 and the grinder 501 are separated from the grinder shell 3, and the vibration of the grinder shell 3 will not affect the screen 502 and the grinder 501, so that the screen 502 and the grinder 501 are prevented from being loosened and damaged due to vibration, the stability of the screen 502 and the grinder 501 is ensured, and the chamfer arranged at the end of the annular pin 802 facilitates positioning of the annular pin 802.

[0064] Working principle: in use, the flower is placed on the surface of the tray 2, and the freeze dryer 1 is started to dry. After drying, the first motor 404 is started, and the first motor 404 operates to drive the bidirectional worm 405 to rotate. When the bidirectional worm 405 rotates, it drives the two worm gears 403 to rotate in opposite directions. When the worm gears 403 rotate, they drive the connecting pipe 402 to rotate. When the connecting pipe 402 rotates, it drives the tray 2 to rotate around the rotating shaft 401. After the tray rotates and tilts, the freeze-dried flowers on the surface slide off and fall into the grinder housing 3 at the bottom;

[0065] The second motor 504 is started, and the second motor 504 drives the first gear 505 and the grinder 501 to rotate when it operates. The rotating grinder 501 grinds the freeze-dried flowers, and the powder formed passes through the screen 502 and then falls into the discharge hopper 33. At the same time, the first gear 505 drives the second gear 509 to rotate when it rotates. The second gear 509 drives the transmission shaft 508 and the third gear 510 to rotate when it rotates. The third gear 510 drives the fourth gear 507 to rotate when it rotates. The fourth gear 507 drives the sleeve 506 to rotate when it rotates. The sleeve 506 drives the screen 502 to rotate when it rotates. The screen 502 rotates to throw the freeze-dried flowers on the inner wall into the air, increasing the number of contacts between the freeze-dried flowers and the grinder 501, thereby improving the grinding efficiency;

[0066] The powder formed after the flowers are ground falls from the discharge hopper 33 at the bottom of the grinder housing 3 into the cup body 601. The weight sensor 602 monitors the weight of the powder in the cup body 601. When the weight reaches the set standard, the butterfly valve 34 is closed, and the third motor 603 is operated. The third motor 603 drives the driving gear 607 to rotate when it operates. The driving gear 607 drives the driven gear 604 to rotate when it rotates. After the driven gear 604 rotates by a certain angle, a new empty cup body 601 is moved to the bottom of the grinder housing 3. Then the butterfly valve 34 is opened again to collect the powder. When the driven gear 604 rotates, it also drives the fifth gear 705 to rotate. The fifth gear 705 drives the second vertical shaft 702 and the first bevel gear 706 to rotate when it rotates. The first bevel gear 706 drives the second bevel gear 707 to rotate when it rotates. The second bevel gear 707 drives one end of the push rod 708 to move when it rotates. The other end of the push rod 708 reciprocally pushes the one end of the vibration rod 701 to reciprocally move, thereby making the vibration rod 701 swing back and forth. The vibration rod 701 swings and knocks the grinder housing 3, causing the grinder housing 3 to vibrate, thereby shaking off the powder attached to the inner wall of the grinder housing 3;

[0067] Through setting the tray 2, the grinder shell 3, the discharging assembly 4, the grinding assembly 5, the equal collecting assembly 6 and the vibration assembly 7 inside the freeze dryer 1, the flowers can be directly ground after being freeze-dried, without being transferred, thereby improving the processing efficiency, reducing the contact of the flowers with the external moisture, preventing the flowers from deteriorating, effectively ensuring the quality of the flower powder, through setting the grinding assembly 5, the flowers can be continuously scattered, the contact frequency of the flowers and the grinder 501 is improved, and the grinding efficiency is improved, through setting the equal collecting assembly 6, the multiple cup bodies 601 can be controlled to take the materials in turn and equally, without subsequent weighing and distributing by the operators, time and manpower are saved, through setting the vibration assembly 7, the grinder shell 3 can also be intermittently knocked, the powder adhered to the inside of the grinder shell 3 is made to fall off by the vibration effect, thereby improving the collection rate of the powder, improving the utilization rate of the flowers and reducing the loss.

[0068] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low temperature drying and milling apparatus comprising a freeze dryer, a tray mounted inside the freeze dryer, and a mill housing, characterized by: The grinding assembly and the equal collection assembly are further included; The grinding assembly is installed in the freeze dryer and extends into the grinding shell, and the grinding assembly includes a rotatable grinder and a screen mesh, and is used for grinding materials; The equal collection assembly is installed in the freeze dryer, and includes a plurality of cup bodies capable of moving to the bottom of the grinding shell, a weight sensor installed at the bottom of the cup body, a first vertical shaft fixed to the inner bottom wall of the freeze dryer, and a third motor fixed to the inner side wall of the freeze dryer, and is used for equal collection of ground powder; When the freeze dryer is running, the materials on the tray are dried, the grinding assembly is running to rotate the grinder and the screen mesh at the same time, thereby grinding the materials, and the ground powder falls into the cup body; When the cup body collects the appropriate amount of ground powder, the equal collection assembly is running to move the cup body to the bottom of the grinding shell in sequence, thereby realizing equal collection; The first vertical shaft is rotatably connected with a driven gear, the weight sensor is arranged in a plurality of and annular array and fixed to the surface of the driven gear, the top of the weight sensor is fixed with a cup holder, the cup body is inserted into the cup holder, the output shaft of the third motor is fixed with a driving gear, and the driving gear is engaged with the driven gear; The vibration assembly is installed in the freeze dryer and located on one side of the grinding shell, the vibration assembly is in transmission connection with the equal collection assembly, the vibration assembly includes a reciprocating vibration rod, a second vertical shaft, a first horizontal shaft and a second horizontal shaft, and the vibration assembly is running to reciprocatingly knock the grinding shell by the vibration rod, thereby making the materials adhered to the inner wall of the grinding shell fall off; The bottom end of the second vertical shaft is rotatably connected with the inner bottom wall of the freeze dryer, the fifth gear and the first bevel gear are fixedly connected on the second vertical shaft, the fifth gear is engaged with the driven gear, the first horizontal shaft and the second horizontal shaft are fixedly connected with the inner side wall of the freeze dryer, the second end of the first horizontal shaft is rotatably connected with the second bevel gear, the second bevel gear is engaged with the first bevel gear, the surface of the second bevel gear is provided with a push rod, one end of the push rod is rotatably connected with the edge of the second bevel gear, the other end of the push rod is hingedly connected with the vibration rod, the end of the vibration rod away from the push rod extends to one side of the grinding shell, and the middle part of the vibration rod is rotatably connected with the second horizontal shaft.

2. The cryogenic drying and comminution apparatus of claim 1, wherein: The discharge assembly is installed in the freeze dryer and in transmission connection with the tray, and is used for driving the tray to rotate, thereby making the tray rotate to pour the materials into the grinding shell.

3. The cryogenic drying and comminution apparatus of claim 2, wherein: The grinding shell includes a main shell, a feeding hopper fixed to one side of the main shell, and a discharging hopper fixed to the bottom of the main shell, the feeding hopper is fixed to the inner wall of the freeze dryer, and the butterfly valve is installed in the discharging hopper.

4. The cryogenic drying and comminution apparatus of claim 3, wherein: The grinding assembly comprises a mounting frame fixed to the inner wall of the freeze dryer, a second motor is fixed on the mounting frame, a first gear is fixed on the output shaft of the second motor, the output shaft of the second motor extends into the main shell, the grinder is arranged in the main shell and is fixed with the output shaft of the second motor, a sleeve is also rotatably connected to the output shaft of the second motor, a fourth gear is fixed to one end of the sleeve, the other end of the sleeve extends into the main shell, the screen is arranged in the main shell and is fixedly connected with the sleeve, the grinding assembly further comprises a transmission shaft, the transmission shaft is rotatably connected with the mounting frame, a second gear and a third gear are fixedly connected on the transmission shaft, the second gear is engaged with the first gear, and the third gear is engaged with the fourth gear.

5. The cryogenic drying and comminution apparatus of claim 4, wherein: The mounting frame is provided with a separation assembly, the separation assembly comprises a movable ring slidingly installed on the sleeve, an annular pin is sleeved outside the movable ring, the annular pin is rotatably connected with the movable ring through a bearing, one end of the annular pin is inserted into the grinder shell, the other end of the annular pin is fixedly connected with a support rod, and the separation assembly further comprises a gas cylinder fixed on the mounting frame, and the output end of the gas cylinder is fixedly connected with the support rod.

6. The cryogenic drying and comminution apparatus of claim 5, wherein: The surface of the sleeve is provided with a plurality of groups of annular array distribution sliding grooves, and the inner wall of the movable ring is fixed with a plurality of groups of annular array distribution sliding blocks.

7. The cryogenic drying and comminution apparatus of claim 6, wherein: The outer edge of the end of the annular pin connected with the grinder shell is provided with a chamfer.

8. A method for pulverizing a whitening active compound raw material, characterized by: The low-temperature drying and crushing equipment of any one of claims 1-7 is used.

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