CN115041407B - Raw material quality screening device for medicine production - Google Patents

Abstract

The invention relates to a screening device, in particular to a raw material quality screening device for medicine production. Provided is a raw material quality screening device for medical production, which can screen raw materials twice and further improve the raw material screening efficiency. The utility model provides a raw materials quality sieving mechanism for medicine production, includes chassis, pole setting, arc frame, rose box and encloses the frame etc. the chassis upside is connected with encloses the frame, and chassis roof left and right sides all is connected with a plurality of pole settings, is connected with the arc frame between the pole setting upper portion of left and right sides, is connected with the rose box between the pole setting middle part of left and right sides. According to the invention, unqualified tiny particle raw materials can be sucked through the bellows, so that the raw materials can be primarily screened, meanwhile, the filter box can screen the raw materials again, so that the raw material screening efficiency is improved, and the first rotating plate is rotated to be opened, so that people can conveniently take out unqualified raw materials in the filter box.

Description

Raw material quality screening device for medicine production

Technical Field

The invention relates to a screening device, in particular to a raw material quality screening device for medicine production.

Background

With the rapid development of Chinese economy, the medical cost caused by the improvement of the living standard of people and the aging of population is increased, the development force of new medicines is increased, the medical industry keeps on keeping the trend of rapid growth, and the raw materials with larger particles or broken raw materials need to be screened in the production and processing process of the raw materials for medical production.

The application publication number CN216539525U discloses a medicine raw material oscillating screen, which comprises a hollow base and an oscillating mechanism; and (3) a hollow base: springs which are distributed are arranged at the edge of the upper surface of the sieve tray, the upper ends of the springs are fixedly connected with the bottom surface of the shaking tray, a sieve tray is movably clamped in a clamping groove arranged on the upper surface of the shaking tray, and discharge hoppers are arranged at the discharge hole on the right side surface of the shaking tray and the discharge hole on the left side surface of the sieve tray; an oscillating mechanism: including trapezoidal platform, bull stick and second eccentric wheel, trapezoidal platform sets up in the bottom surface of rocking the dish, and the bottom surface center department of trapezoidal platform rotates through the bearing and is connected with the bull stick, and during the use, put into the inside of screening dish with medical raw materials, then start biax motor for rock the dish and shake, can vibrate the screening to the raw materials, however this vibration screen is difficult to carry out twice screening to the raw materials, and then reduces raw materials screening efficiency.

Therefore, a raw material quality screening device for medical production, which can screen raw materials twice and further improve the raw material screening efficiency, has been developed.

Disclosure of Invention

In order to overcome the defect that the above patent is difficult to screen the raw materials twice and further reduce the raw material screening efficiency, the technical problem to be solved is that: provided is a raw material quality screening device for medical production, which can screen raw materials twice and further improve the raw material screening efficiency.

The technical proposal is as follows: the utility model provides a raw materials quality sieving mechanism for medicine production, including chassis, pole setting, arc frame, rose box, enclose the frame, extracting mechanism and suction means, the chassis upside is connected with encloses the frame, and chassis roof left and right sides all is connected with a plurality of pole settings, is connected with the arc frame between the pole setting upper portion of left and right sides, is connected with the rose box between the pole setting middle part of left and right sides, is equipped with the extracting mechanism that is used for people to take out unqualified raw materials on the rose box, is equipped with the suction means that absorbs the tiny particle raw materials on the arc frame.

As a preferable technical scheme of the invention, the material taking mechanism comprises a first rotating plate, fixed circular rings, a first connecting rod frame and a first torsion spring, wherein the front side and the rear side of the filter box are symmetrically connected with the fixed circular rings in a bilateral symmetry manner, the first connecting rod frame is rotatably connected between the two fixed circular rings at the front side, the first connecting rod frame is rotatably connected between the two fixed circular rings at the rear side, the first rotating plate is connected to the first connecting rod frame, the first torsion springs are connected between the left side and the right side of the first connecting rod frame and the corresponding fixed circular rings, and the first torsion springs are wound on the first connecting rod frame.

As a preferable technical scheme of the invention, the suction mechanism comprises a bellows, a thin-shell box, a small drawing box, a rotary circular plate and a second torsion spring, wherein the lower side of the rear part of the arc-shaped frame is connected with the bellows, the lower side of the bellows is connected with the thin-shell box, the rear part of the thin-shell box is connected with the small drawing box in a sliding manner, the left side and the right side of the rear part of the thin-shell box are symmetrically and rotationally connected with the rotary circular plate, the rotary circular plate is contacted with the small drawing box, the second torsion spring is connected between the rotary circular plate and the thin-shell box, and the second torsion spring is wound on the rotary circular plate.

As a preferable technical scheme of the invention, the invention further comprises an opening mechanism capable of controlling whether the arc frame circulates or not, the opening mechanism comprises a hollow plate, a sliding angle plate, a limiting rod and a reset spring, the lower part of the arc frame is connected with the hollow plate in a sliding manner, the left side and the right side of the lower rear part of the arc frame are connected with the sliding angle plate in a sliding manner, the middle position of the lower part of the arc frame is connected with 3 limiting rods, the hollow plate is connected with the limiting rod in a sliding manner, three reset springs are connected between the rear part of the hollow plate and the arc frame, and the reset springs are wound on the limiting rod.

As a preferable technical scheme of the invention, the device further comprises an opening and closing mechanism for controlling whether the bellows can smoothly extract tiny particle raw materials, the opening and closing mechanism comprises an oblique angle frame, a second connecting rod frame, second rotating plates and a belt pulley assembly, the left side of the rear wall of the hollow plate is connected with the oblique angle frame, the oblique angle frame is rotationally and slidingly connected with the second connecting rod frame, 7 second rotating plates are rotationally connected with the upper part of the bellows at uniform intervals, the front side of the second rotating plate on the left side is rotationally and slidingly connected with the second connecting rod frame, the belt pulley assembly is connected between the rear sides of two adjacent second rotating plates, the belt pulley assembly consists of two belt pulleys and a belt, the rear sides of the second rotating plate on the leftmost side and the second rotating plate on the rightmost side are respectively connected with one belt pulley, the rear sides of the four second rotating plates on the middle position are respectively connected with two belt pulleys distributed front and back, and forth, and the belt is wound between the two adjacent belt pulleys on the left side and right side.

As a preferred technical scheme of the invention, the invention further comprises a joint mechanism which enables the first connecting rod frame to automatically rotate, wherein the joint mechanism comprises an arc frame, all gears, air cylinders and racks, the left side and the right side of the filter box are connected with the air cylinders, the telescopic rods of the air cylinders are connected with the arc frame, the arc frame is connected with the filter box in a sliding mode, the upper sides of the arc frame are connected with the left side and the right side of the front part of the hollow plate in a sliding mode, the front side and the rear side of the arc frame are connected with the racks, the left side and the right side of the first connecting rod frame are connected with the all gears, and the corresponding racks are meshed with the all gears.

As a preferable embodiment of the present invention, the upper portion of the arc frame is inclined, and the hollow plate can be guided.

As a preferred technical scheme of the invention, the invention further comprises a collecting mechanism for collecting screened raw materials, the collecting mechanism comprises an arc angle box, a third connecting rod frame and a large drawing box, the arc angle box is connected between the lower parts of the upright rods on the left side and the right side, the lower side of the arc angle box is fixedly connected with the underframe, two third connecting rod frames which are bilaterally symmetrical are connected between the upper side of the arc angle box and the front part of the filter box, the arc angle box is communicated with the lower side of the rear part of the filter box, and the large drawing box is connected on the arc angle box in a sliding manner.

The invention has the following advantages: 1. according to the invention, unqualified tiny particle raw materials can be sucked through the bellows, so that the raw materials can be primarily screened, meanwhile, the filter box can screen the raw materials again, so that the raw material screening efficiency is improved, and the first rotating plate is rotated to be opened, so that people can conveniently take out unqualified raw materials in the filter box.

2. According to the invention, whether the arc-shaped frame smoothly performs blanking can be controlled by moving the hollow plate.

3. According to the invention, whether the bellows smoothly performs primary screening on raw materials or not can be controlled through rotation of the second rotating plate, and meanwhile, the circular arc frame moves, so that the hollow plate can automatically move forward to be opened, and meanwhile, the first connecting rod frame can automatically rotate, so that the labor force of people can be reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a partial perspective structure of the present invention.

Fig. 3 is a schematic perspective view of the extracting mechanism of the present invention.

Fig. 4 is a schematic view of a partial perspective view of the take-off mechanism of the present invention.

Fig. 5 is an enlarged perspective view of the present invention at a.

Fig. 6 is a schematic perspective view of the suction mechanism of the present invention.

Fig. 7 is a schematic view of a partial perspective structure of the suction mechanism of the present invention.

Fig. 8 is an enlarged perspective view of the B-site of the present invention.

Fig. 9 is a schematic perspective view of an opening mechanism of the present invention.

Fig. 10 is a partial perspective view of the opening mechanism of the present invention.

Fig. 11 is a schematic perspective view of an opening and closing mechanism according to the present invention.

Fig. 12 is a schematic perspective view of a first view of the opening and closing mechanism of the present invention.

Fig. 13 is a schematic perspective view of a second view of the opening and closing mechanism of the present invention.

Fig. 14 is a schematic partial perspective view of the opening and closing mechanism of the present invention.

Fig. 15 is a schematic perspective view of the combination mechanism of the present invention.

Fig. 16 is a partial perspective view of the combination of the present invention.

Fig. 17 is an enlarged perspective view of the C-position structure of the present invention.

Fig. 18 is a schematic perspective view of a collecting mechanism according to the present invention.

Fig. 19 is a schematic view showing a partial perspective structure of the collecting mechanism of the present invention.

In the figure: 1: chassis, 2: pole setting, 3: arc frame, 4: filter box, 5: enclosing frame, 6: feeding mechanism, 61: first rotating plate, 62: fixing ring, 63: first connecting rod rack, 64: first torsion spring, 7: suction mechanism, 71: bellows, 72: thin-shell case, 73: small drawer, 74: rotating the circular plate, 75: second torsion spring, 8: opening mechanism, 81: hollow slab, 82: sliding gusset, 83: stop lever, 84: reset spring, 9: opening and closing mechanism, 91: bevel frame, 92: second connecting rod frame, 93: second rotating plate, 94: pulley assembly, 10: joint mechanism, 101: arc frame, 102: all gear, 103: cylinder, 104: rack, 11: collection mechanism, 111: arc angle box, 112: third connecting rod rack, 113: large drawer.

Detailed Description

The following describes in detail the preferred embodiments of the present invention with reference to the accompanying drawings.

Example 1

The utility model provides a raw materials quality sieving mechanism for medicine production, as shown in fig. 1 and 2, including chassis 1, pole setting 2, arc frame 3, rose box 4, enclose frame 5, feeding mechanism 6 and suction mechanism 7, chassis 1 upside is connected with encloses frame 5, chassis 1 roof left and right sides all welds has a plurality of pole setting 2, be connected with arc frame 3 between the pole setting 2 upper portion of left and right sides, arc frame 3 is convenient for people to the raw materials to fall into the material, be connected with rose box 4 between the pole setting 2 middle part of left and right sides, rose box 4 can filter the raw materials, be equipped with the feeding mechanism 6 that is used for people to take out unqualified raw materials on the rose box 4, be equipped with the suction mechanism 7 that absorbs tiny particle raw materials on the arc frame 3.

As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the material taking mechanism 6 includes a first rotating plate 61, fixed rings 62, a first connecting rod frame 63 and a first torsion spring 64, the front side and the rear side of the filter box 4 are symmetrically welded with the fixed rings 62, the first connecting rod frame 63 is rotatably connected between the two fixed rings 62 on the front side, the first connecting rod frame 63 is rotatably connected between the two fixed rings 62 on the rear side, the first rotating plate 61 is connected to the first connecting rod frame 63, the first rotating plate 61 can cover the front side and the rear side of the filter box 4, the first torsion springs 64 are connected between the left side and the right side of the first connecting rod frame 63 and the corresponding fixed rings 62, the first torsion springs 64 are wound on the first connecting rod frame 63, and the first torsion springs 64 can enable the first connecting rod frame 63 to rotate and reset.

As shown in fig. 2, 6, 7 and 8, the suction mechanism 7 comprises bellows 71, bao Kexiang, a small drawing box 73, a rotary disc 74 and a second torsion spring 75, the bellows 71 is connected to the lower side of the rear portion of the arc frame 3, the bellows 71 can suck tiny particle raw materials, the lower side of the bellows 71 is connected with a thin shell box 72, the rear portion of the thin shell box 72 is slidably connected with the small drawing box 73, the small drawing box 73 can store tiny particle raw materials, the rotary disc 74 is symmetrically connected to the left side and the right side of the rear portion of the thin shell box 72 in a vertically rotating mode, the rotary disc 74 is in contact with the small drawing box 73, the rotary disc 74 can clamp the small drawing box 73, the second torsion spring 75 is connected between the rotary disc 74 and the thin shell box 72, and the second torsion spring 75 is wound on the rotary disc 74 in a winding mode, and the second torsion spring 75 can enable the rotary disc 74 to rotate and reset.

When people need to screen raw materials for medicine production (hereinafter referred to as raw materials), the device can be used for realizing that the first torsion spring 64 is in a twisted state, the first rotary plate 61 is in a rotary open state, firstly, people release the first rotary plate 61, then the first connecting rod frame 63 and the first rotary plate 61 are rotated and closed downwards under the action of the first torsion spring 64, the front side and the rear side of the filter box 4 are blocked, then people place a container for containing raw materials on the lower side of the filter box 4, then people open the bellows 71, then people pour the raw materials into the arc-shaped frame 3, when the raw materials pass through the bellows 71, the bellows 71 can suck tiny particle raw materials into the small drawing box 73, simultaneously, the raw materials which are not extracted slide into the filter box 4 for filtering and screening, the screened raw materials fall into the container prepared by people, so that the raw materials can be screened, after screening, people close the bellows 71, then people rotate the rotary circular plate 74, at the moment, the second torsion spring 75 is twisted, so that the rotary circular plate 74 is separated from the small drawing box 73, then people pull the small drawing box 73 to the rear side, the unqualified tiny particle raw materials in the small drawing box 73 are processed, after the processing is finished, people move the small drawing box 73 to the front side for resetting, then release the rotary circular plate 74, then the rotary circular plate 74 is reversely reset under the action of the second torsion spring 75, the rotary circular plate 74 can clamp the small drawing box 73, the small drawing box 73 is prevented from automatically moving, then people rotate the first rotary plate 61 to the upper side for opening, at the moment, the first torsion spring 64 is twisted, then people clean the unqualified raw materials screened out of the filter box 4 by means of a tool, repeat the above operation and can absorb unqualified tiny particle raw materials through bellows 71, so can carry out preliminary screening to the raw materials, rose box 4 can carry out the screening again to the raw materials simultaneously for raw materials screening efficiency improves, and first rotor plate 61 rotates and opens the processing of taking out to the unqualified raw materials in the rose box 4 of being convenient for people.

Example 2

On the basis of embodiment 1, as shown in fig. 2, 9 and 10, the utility model also comprises an opening mechanism 8 capable of controlling whether circulation is carried out in the arc-shaped frame 3, the opening mechanism 8 comprises a hollow plate 81, a sliding angle plate 82, a limiting rod 83 and a reset spring 84, the lower part of the arc-shaped frame 3 is connected with the hollow plate 81 in a sliding manner, the hollow plate 81 can control circulation in the arc-shaped frame 3, the left side and the right side of the lower rear part of the arc-shaped frame 3 are connected with the sliding angle plate 82 in a sliding manner, the sliding angle plate 82 can fixedly limit the hollow plate 81, the middle position of the lower part of the arc-shaped frame 3 is connected with 3 limiting rods 83, the hollow plate 81 is connected with the limiting rods 83 in a sliding manner, the limiting rods 83 can play a limiting guide role on the hollow plate 81, three reset springs 84 are connected between the rear part of the hollow plate 81 and the arc-shaped frame 3, the reset springs 84 are wound on the limiting rods 83, and the reset springs 84 can enable the hollow plate 81 to move and reset.

When people need to slide raw materials into the filter box 4, initially, hollow slab 81 is in the state of blocking the arc-shaped blocks, firstly, people move sliding angle plates 82 away from each other by means of tools, then people move hollow slab 81 to the front side, limiting rods 83 can play a role in guiding and limiting on hollow slab 81, return springs 84 are compressed at this time, when hollow slab 81 moves to the forefront position, people move sliding angle plates 82 close to each other, sliding angle plates 82 can play a clamping role on hollow slab 81, hollow slab 81 moves to the front side so that arc-shaped frame 3 is opened, raw materials can slide into filter box 4 smoothly to be screened, after raw materials are screened, people move sliding angle plates 82 away from each other again by means of tools so that hollow slab 81 is released, hollow slab 81 moves to the rear side under the action of return springs 84, then people move sliding angle plates 82 close to each other by means of tools to reset, and whether the above operations smoothly carry out blanking through the movement of hollow slab 81 can be controlled.

As shown in fig. 2, 11, 12, 13 and 14, the device further comprises an opening and closing mechanism 9 for controlling whether the bellows 71 can smoothly extract tiny particle raw materials, the opening and closing mechanism 9 comprises an oblique angle frame 91, a second connecting rod frame 92, a second rotating plate 93 and a belt pulley assembly 94, the left side of the rear wall of the hollow plate 81 is connected with the oblique angle frame 91, the oblique angle frame 91 rotates and is slidably connected with the second connecting rod frame 92, 7 second rotating plates 93 are rotatably connected to the upper portion of the bellows 71 at uniform intervals, the second rotating plates 93 can close the opening and closing of the upper portion of the bellows 71, the front side of the second rotating plates 93 on the left side is rotatably and slidably connected with the second connecting rod frame 92, the belt pulley assembly 94 is connected between the rear sides of the two adjacent second rotating plates 93, the belt pulley assembly 94 is composed of two rotating plates and a belt pulley, the rear sides of the second rotating plates 93 on the leftmost side and the rightmost side are both connected with one belt pulley, the four second belt pulleys 93 on the middle position are also connected with two belt pulleys distributed front and rear sides, and two adjacent rotating plates are wound around two belt pulleys.

When people need to suck and screen tiny particle raw materials, firstly, when the hollow plate 81 moves forwards, the hollow plate 81 moves forwards to drive the bevel frame 91 to move forwards, in the process of moving the bevel frame 91 forwards, the second connecting rod frame 92 moves upwards, the second rotating plate 93 on the left side moves upwards to rotate, then the belt pulley assembly 94 drives the rest 5 second rotating plates 93 to rotate, so that the upper part of the bellows 71 is opened, then tiny particle raw materials can be sucked, after raw materials are screened, and when the hollow plate 81 moves backwards to reset, the hollow plate 81 moves backwards to drive the bevel frame 91 to move backwards to reset, the second connecting rod frame 92 moves downwards in the process of moving backwards, the second connecting rod frame 92 moves downwards to reset the second rotating plate 93 on the left side, and then the rest 5 second rotating plates 93 are reversely closed through the belt pulley assembly 94, so that the upper part of the bellows 71 is closed, and whether the preliminary raw materials can be screened smoothly or not can be controlled through the second rotating plate 93 repeatedly.

As shown in fig. 2, 15, 16 and 17, the combined mechanism 10 enabling the first connecting rod frame 63 to automatically rotate is further included, the combined mechanism 10 includes an arc frame 101, an all-gear 102, an air cylinder 103 and a rack 104, the air cylinder 103 is fixedly connected to the left side and the right side of the filter box 4, the arc frame 101 is slidably connected to the filter box 4, the upper side of the arc frame 101 is slidably connected to the left side and the right side of the front portion of the hollow plate 81, the upper portion of the arc frame 101 is inclined, the hollow plate 81 can be guided, the front side and the rear side of the arc frame 101 are connected with racks 104, the left side and the right side of the first connecting rod frame 63 are connected with all-gears 102, and the corresponding racks 104 are meshed with the all-gears 102.

When people need to close and block the front and back sides of the filter box 4 to screen raw materials, firstly, people open the air cylinder 103, the air cylinder 103 telescopic rod shortens and drives the circular arc frame 101 to move upwards, as the upper part of the circular arc frame 101 is inclined, the circular arc frame 101 moves upwards to enable the hollow plate 81 to automatically move and open towards the front side, meanwhile, the circular arc frame 101 moves upwards to drive the rack 104 to move upwards, the rack 104 moves upwards to enable the all-gear 102 to rotate, the all-gear 102 rotates to enable the first connecting rod frame 63 to automatically rotate towards the lower side, so that the front and back sides of the filter box 4 can be covered and blocked, raw materials can be screened later, after raw materials are screened, people control the air cylinder 103 telescopic rod to stretch downwards to drive the circular arc frame 101 to move downwards and reset, the circular arc frame 101 moves downwards to push the hollow plate 81 to move backwards to be closed, meanwhile, the circular arc frame 101 moves downwards to drive the rack 104 to move downwards to drive the all-gear 102 to reverse, then enable the first connecting rod frame 63 to rotate upwards, then the air cylinder 103 can be closed, and then the first connecting rod frame 63 can be automatically moved towards the front side, and the first connecting rod frame 63 can not be repeatedly opened, and the first connecting rod frame can be automatically opened, and the raw materials can be automatically opened.

As shown in fig. 2, 18 and 19, the device further comprises a collecting mechanism 11 for collecting screened raw materials, the collecting mechanism 11 comprises an arc angle box 111, a third connecting rod frame 112 and a large drawing box 113, the arc angle box 111 is welded between the lower parts of the upright rods 2 on the left side and the right side, the lower side of the arc angle box 111 is fixedly connected with the underframe 1, two third connecting rod frames 112 which are bilaterally symmetrical are connected between the upper side of the arc angle box 111 and the front part of the filtering box 4, the third connecting rod frame 112 can improve the stability of the arc angle box 111, the arc angle box 111 is communicated with the lower side of the rear part of the filtering box 4, the large drawing box 113 is connected on the arc angle box 111 in a sliding mode, and the large drawing box 113 can collect screened raw materials.

When people need to collect the screened raw materials, firstly, the filtered raw materials can fall into the large drawing box 113, the large drawing box 113 can hold the raw materials, then after the raw materials are screened, people pull the large drawing box 113 to the rear side, then people store the screened raw materials in the large drawing box 113, after the storage is completed, people move the large drawing box 113 to the front side to reset, the above operation is repeated, the screened raw materials can be collected, and people can conveniently take and put the screened raw materials.

The technical principles of the embodiments of the present invention are described above in connection with specific embodiments. The description is only intended to explain the principles of the embodiments of the invention and should not be taken in any way as limiting the scope of the embodiments of the invention. Based on the explanations herein, those skilled in the art will recognize other embodiments of the present invention without undue burden, and those ways that are within the scope of the present invention.

Claims (3)

1. The utility model provides a raw materials quality sieving mechanism for medicine production, including chassis (1), pole setting (2), arc frame (3), rose box (4) and enclose frame (5), chassis (1) upside is connected with encloses frame (5), chassis (1) roof left and right sides all is connected with a plurality of pole settings (2), is connected with arc frame (3) between pole setting (2) upper portion of left and right sides, is connected with rose box (4) between pole setting (2) middle part of left and right sides, characterized by: the device also comprises a material taking mechanism (6) and a suction mechanism (7), wherein the material taking mechanism (6) for taking out unqualified raw materials by people is arranged on the filter box (4), and the suction mechanism (7) for sucking tiny particle raw materials is arranged on the arc-shaped frame (3);

the material taking mechanism (6) comprises a first rotating plate (61), fixed circular rings (62), first connecting rod frames (63) and first torsion springs (64), wherein the fixed circular rings (62) are symmetrically connected to the front side and the rear side of the filter box (4), the first connecting rod frames (63) are rotatably connected between the two fixed circular rings (62) on the front side, the first connecting rod frames (63) are rotatably connected between the two fixed circular rings (62) on the rear side, the first rotating plate (61) is connected to the first connecting rod frames (63), the first torsion springs (64) are connected between the left side and the right side of the first connecting rod frames (63) and the corresponding fixed circular rings (62), and the first torsion springs (64) are wound on the first connecting rod frames (63);

the suction mechanism (7) comprises an air box (71), a thin-shell box (72), a small drawing box (73), a rotary circular plate (74) and a second torsion spring (75), wherein the lower side of the rear part of the arc-shaped frame (3) is connected with the air box (71), the lower side of the air box (71) is connected with the thin-shell box (72), the rear part of the thin-shell box (72) is connected with the small drawing box (73) in a sliding mode, the left side and the right side of the rear part of the thin-shell box (72) are symmetrically and rotationally connected with the rotary circular plate (74), the rotary circular plate (74) is in contact with the small drawing box (73), the second torsion spring (75) is connected between the rotary circular plate (74) and the thin-shell box (72), and the second torsion spring (75) is wound on the rotary circular plate (74);

the automatic opening device is characterized by further comprising an opening mechanism (8) capable of controlling whether circulation is carried out in the arc-shaped frame (3), wherein the opening mechanism (8) comprises a hollow plate (81), a sliding angle plate (82), a limiting rod (83) and a reset spring (84), the hollow plate (81) is connected to the lower portion of the arc-shaped frame (3) in a sliding mode, the sliding angle plate (82) is connected to the left side and the right side of the lower rear portion of the arc-shaped frame (3) in a sliding mode, 3 limiting rods (83) are connected to the middle position of the lower portion of the arc-shaped frame (3), the hollow plate (81) is connected with the limiting rods (83) in a sliding mode, three reset springs (84) are connected between the rear portion of the hollow plate (81) and the arc-shaped frame (3), and the reset springs (84) are wound on the limiting rods (83);

the device comprises a hollow plate (81), a bevel frame (91), a second connecting rod frame (92), a second rotating plate (93) and a belt pulley assembly (94), wherein the bevel frame (91) is connected to the left side of the rear wall of the hollow plate (81), the bevel frame (91) rotates and is slidably connected with the second connecting rod frame (92), 7 second rotating plates (93) are rotatably connected to the upper part of the bellows (71) at uniform intervals, the front side of the second rotating plate (93) on the left side is rotatably and slidably connected with the second connecting rod frame (92), the belt pulley assembly (94) is connected between the rear sides of the two adjacent second rotating plates (93), the belt pulley assembly (94) consists of two belt pulleys and one belt, one belt pulley is connected to the rear side of the second rotating plate (93) on the leftmost side, two belt pulleys are also connected to the rear sides of the four second rotating plates (93) on the middle position, and two belt pulleys distributed in front-rear sides are wound around the two adjacent belt pulleys on the left side and the right side;

still including making first connecting rod frame (63) can carry out pivoted joint mechanism (10) automatically, joint mechanism (10) are including circular arc frame (101), all gear (102), cylinder (103) and rack (104), rose box (4) left and right sides all is connected with cylinder (103), all be connected with circular arc frame (101) on cylinder (103) telescopic link, circular arc frame (101) are connected with rose box (4) slidingtype, circular arc frame (101) upside all is connected with hollow slab (81) front portion left and right sides slidingtype, both sides all are connected with rack (104) around circular arc frame (101), first connecting rod frame (63) left and right sides all are connected with all gear (102), rack (104) and all gear (102) intermeshing that correspond.

2. The raw material quality screening device for pharmaceutical production according to claim 1, characterized in that: the upper part of the arc frame (101) is inclined, and the hollow plate (81) can be guided.

3. The raw material quality screening device for pharmaceutical production according to claim 2, characterized in that: the device is characterized by further comprising a collecting mechanism (11) for collecting screened raw materials, wherein the collecting mechanism (11) comprises an arc angle box (111), a third connecting rod frame (112) and a large drawing box (113), the arc angle box (111) is connected between the lower parts of the upright rods (2) on the left side and the right side, the lower side of the arc angle box (111) is fixedly connected with the underframe (1), two third connecting rod frames (112) which are bilaterally symmetrical are connected between the upper side of the arc angle box (111) and the front part of the filtering box (4), the arc angle box (111) is communicated with the lower side of the rear part of the filtering box (4), and the large drawing box (113) is connected on the arc angle box (111) in a sliding mode.