Anti-pollution feeding device for pharmacy

Abstract

The invention relates to the technical field of feeding devices, and discloses an anti-pollution feeding device for pharmacy, which comprises a fixed pipe, the top of the fixed pipe is provided with an assembly disc connected with a material box, the bottom of the fixed pipe is slidably provided with a movable pipe, and the bottom of the movable pipe is provided with a butt joint disc connected with pharmaceutical equipment; the plurality of conversion plates are arranged in a circumferential manner and are rotationally mounted on the connecting piece; after feeding is finished, connection between the butt-joint disc and the pharmaceutical equipment is relieved, then the driving source drives the movable pipe to ascend and reset, the multiple conversion plates are turned over to be attached to one another in the process, and anti-pollution protection is conducted on the screen; the problem that dust enters the device and adheres to the screen after the top of the fixing pipe is opened in the connecting process of the assembling disc and the material box before feeding can be avoided, the screening and dust removing effect of the screen is ensured, and then pollution prevention in the feeding process is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of feeding devices, and in particular to an anti-pollution feeding device for pharmaceutical preparation. Background Art

[0002] Pharmaceutical engineering is an engineering discipline that intersects chemistry, biology, pharmacy (traditional Chinese medicine) and engineering. It aims to cultivate talents engaged in drug research and development, manufacturing, development, expansion and design of new processes, new equipment and new varieties. The pharmaceutical industry has become the focus of competition among the world's economic powers. Many countries in the world regard the establishment of a pharmaceutical industry as a symbol of national strength. The continuous discovery of new drugs and the tremendous progress in treatment methods have prompted very great changes in the pharmaceutical industry. In the process of producing drugs, feeding and transmission are required, and feeding devices are needed for feeding. The current feeding devices are prone to dust and other impurities entering the device after feeding, resulting in impurities in the drugs, which contaminates the drugs and affects the quality of the drugs.

[0003] At present, there are some existing technologies that can prevent external dust and impurities from entering the device and contaminating the raw materials, so as to achieve anti-pollution feeding. For example, the patent publication number is CN214865190U. Its main technical means is to set a closing mechanism to prevent external dust and impurities from entering the box after the raw materials enter the box, so as to prevent the raw materials from being contaminated. In addition, by setting a filter and a vibration mechanism, the vibration mechanism is used to drive the filter to vibrate, so as to filter the impurities in the raw materials and ensure the purity of the raw materials. After analysis, the disadvantage of this technical solution is that the filter is always filtering the raw materials, and its surface will be contaminated with impurities. After the hopper is opened before feeding, dust and impurities will enter the device and be contaminated on the screen. In the long run, the cleanliness of the screen is greatly reduced, and the pollution-free feeding of the raw materials cannot be ensured. Based on this, the present invention provides an anti-pollution feeding device for pharmaceutical production, which has a simple and ingenious structure and can prevent impurities from adhering to the surface of the screen. Summary of the invention

[0004] The purpose of the present invention is to provide a pollution-proof feeding device for pharmaceutical production in view of the deficiencies in the prior art, so as to solve the technical problem that dust and impurities will enter the device and be contaminated on the screen after the feed hopper is opened.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A pollution-proof feeding device for pharmaceutical production, comprising: A fixed tube, with an assembly plate connected to the material box on the top, a movable tube slidably mounted on the bottom of the fixed tube, and a docking plate connected to the pharmaceutical equipment is provided at the bottom of the movable tube, a driving source for driving the movable tube to rise and fall is provided on the assembly plate, and a screen is provided inside the movable tube; and Conversion plates, several of which are arranged in a circle and are rotatably mounted on a connecting piece, the connecting piece is mounted at the axis of the screen, and the conversion plates are connected to a transmission assembly arranged on the movable tube; when the movable tube is located at the highest point of its moving path, several conversion plates fit together to block the path between the screen and the fixed tube, and when the driving source drives the movable tube to descend, the transmission assembly drives several conversion plates to flip, and there is a gap between two adjacent conversion plates to allow the raw materials to pass through and contact the screen.

[0006] As a further solution of the present invention: the conversion plate includes a plate body and a rotating shaft connected to the connecting piece, and the rotating shaft is connected to the transmission assembly; when the movable tube is located at the highest point of its moving path, the plate body is arranged horizontally, and when the driving source drives the movable tube to descend, the transmission assembly drives the plurality of rotating shafts to rotate.

[0007] As a further solution of the present invention: the connecting member includes a positioning shaft installed at the axis center of the screen, and an arc segment installed coaxially with the positioning shaft, and the arc segment is rotatably connected to a plurality of rotating shafts.

[0008] As a further solution of the present invention: a cone is arranged at the top of the positioning shaft, and the bottom diameter of the cone is larger than the top diameter thereof.

[0009] As a further solution of the present invention: the screen is fixedly connected to the fixed tube, and is rotatably connected to the movable tube, the positioning shaft is rotatably connected to the screen, a turntable is rotatably installed on the outer surface of the fixed tube, and the turntable is driven to rotate by an output source, the turntable is connected to the movable tube through a connecting rod, and the connecting rod is a telescopic structure, and a brush is provided on the plate body; when the movable tube is located at the lowest point of its moving path, a plurality of plate bodies are arranged vertically, and the brushes are in contact with the surface of the screen.

[0010] As a further solution of the present invention: the number of the transmission components is multiple, and the multiple transmission components correspond to the multiple conversion plates one by one, and the transmission components include: a gear rotatably mounted on the movable tube and connected to the rotating shaft via a belt; and The rack is fixed on the rotating disk and meshes with the gear.

[0011] As a further solution of the present invention: a brake assembly connected to the movable tube is installed on the fixed tube; when the movable tube is at the highest point of its moving path, the brake assembly brakes the rotational movement of the movable tube, and the movable tube and the turntable both stop rotating.

[0012] As a further solution of the present invention: the brake assembly includes a fixed ring fixed on the fixed tube and a lifting ring fixed on the movable tube; when the movable tube is located at the highest point of its moving path, the lifting ring contacts the fixed ring and the two are engaged.

[0013] Beneficial effects of the present invention: (1) In the present invention, the movable tube is driven to descend by a driving source, and then the docking plate is connected to the pharmaceutical equipment. During the descent of the movable tube, the transmission assembly drives a plurality of conversion plates to flip, and a gap is provided between two adjacent conversion plates so that the raw materials can pass through and contact the screen. At this time, the path between the screen and the fixed tube is in a connected state, and the raw materials input from the material box are screened and dust-removed by the screen and then put into the pharmaceutical equipment; after the feeding is completed, the connection between the docking plate and the pharmaceutical equipment is released, and then the driving source drives the movable tube to rise and reset. During this process, a plurality of conversion plates flip to fit each other, and the screen is protected from pollution. This can avoid the problem that dust enters the device and adheres to the screen after the top of the fixed tube is opened during the process of connecting the assembly plate and the material box before feeding, thereby ensuring the screening and dust removal effect of the screen, and thus achieving pollution prevention during the feeding process; (2) In the present invention, when the movable tube is at the lowest point of its moving path, a plurality of plates are arranged vertically, and the brushes are in contact with the surface of the screen. At this time, when the movable tube rotates, the conversion plate rotates synchronously, and relative sliding occurs between the brushes and the screen, so that the surface of the screen can be cleaned. At the same time, the connecting piece rotates synchronously, so that the raw materials in contact with it can be broken up and spread out, ensuring that the raw materials will not accumulate and can fully contact with the screen. (3) In the present invention, when the movable tube is located at the highest point of its moving path, the lifting ring contacts and engages with the fixed ring, and at this time, the movable tube and the turntable cannot rotate; after the movable tube descends, the lifting ring descends synchronously and separates from the fixed ring, and the engagement state between the two is released, so that the turntable can be driven to rotate and drive the movable tube to rotate synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the movable tube in the present invention; Figure 3 It is a schematic diagram of the structure of the screen in the present invention; Figure 4 It is a schematic diagram of the structure of the conversion plate in the present invention; Figure 5 It is a structural schematic diagram of the connecting member in the present invention; Figure 6 It is a structural schematic diagram of the brake assembly in the present invention.

[0016] In the figure: 1. fixed tube; 2. movable tube; 3. screen; 4. assembly plate; 5. docking plate; 6. conversion plate; 601. plate body; 602. rotating shaft; 7. connecting piece; 701. positioning shaft; 702. arc segment; 703. vertebral body; 8. transmission assembly; 801. gear; 802. rack; 803. belt; 9. turntable; 10. brake assembly; 1001. fixed ring; 1002. lifting ring; 11. connecting rod; 12. driving source; 13. brush. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 6 As shown, the present invention is a pollution-proof feeding device for pharmaceutical production, comprising: A fixed tube 1, with an assembly plate 4 connected to a material box disposed on the top thereof, a movable tube 2 slidably mounted on the bottom of the fixed tube 1, and a docking plate 5 connected to a pharmaceutical device disposed at the bottom of the movable tube 2, a driving source 12 for driving the movable tube 2 to rise and fall disposed on the assembly plate 4, and a screen 3 disposed inside the movable tube 2; and A conversion plate 6, wherein a plurality of the conversion plates 6 are arranged in a circle and are all rotatably mounted on a connecting member 7, wherein the connecting member 7 is mounted at the axis of the screen 3, and the conversion plate 6 is connected to a transmission assembly 8 disposed on the movable tube 2; when the movable tube 2 is located at the highest point of its moving path, a plurality of conversion plates 6 fit together to block the path between the screen 3 and the fixed tube 1; when the driving source 12 drives the movable tube 2 to descend, the transmission assembly 8 drives a plurality of conversion plates 6 to flip, and there is a gap between two adjacent conversion plates 6 to allow the raw material to pass through and contact the screen 3.

[0019] In one case of this embodiment, a fan is provided in the movable tube 2 for dust removal, which is the prior art and is not improved in this application. Therefore, there is no need to disclose its specific mechanical structure and circuit structure, and it does not affect the integrity of this application. The driving source 12 may be a hydraulic cylinder, a pneumatic cylinder or other components, or other mechanisms capable of achieving linear motion, which is not specifically limited in this embodiment.

[0020] In actual application of this embodiment, in the initial state, the movable tube 2 is located at the highest point of its moving path. At this time, the plurality of conversion plates 6 are fitted together, and the path between the screen 3 and the fixed tube 1 is in a blocked state. Even if the top of the fixed tube 1 is open, no dust will contact the screen 3. The assembly plate 4 is assembled and spliced ​​with the material box. When feeding is required, the driving source 12 drives the movable tube 2 to descend, and then the docking plate 5 is connected to the pharmaceutical equipment. During the descent of the movable tube 2, the transmission assembly 8 drives the plurality of conversion plates 6 to flip, and there is a gap between two adjacent conversion plates 6 for the raw materials to pass through and contact the screen. 3. At this time, the path between the screen 3 and the fixed pipe 1 is connected, and the raw materials input from the material box are screened and dust-removed by the screen 3 and then put into the pharmaceutical equipment; after the feeding is completed, the connection between the docking plate 5 and the pharmaceutical equipment is released, and then the driving source 12 drives the movable pipe 2 to rise and reset. During this process, several conversion plates 6 are flipped to fit each other to protect the screen 3 from pollution, which can avoid the problem of dust entering the device and adhering to the screen 3 after the top of the fixed pipe 1 is opened during the connection process between the assembly plate 4 and the material box before feeding, thereby ensuring the screening and dust removal effect of the screen 3, and then realizing the pollution prevention of the feeding process.

[0021] like Figure 2-Figure 5 As shown, as a preferred embodiment of the present invention, the conversion plate 6 includes a plate body 601 and a rotating shaft 602 connected to the connecting member 7, and the rotating shaft 602 is connected to the transmission assembly 8; when the movable tube 2 is located at the highest point of its moving path, the plate body 601 is arranged horizontally, and when the driving source 12 drives the movable tube 2 to descend, the transmission assembly 8 drives the plurality of rotating shafts 602 to rotate.

[0022] In actual application of this embodiment, when the movable tube 2 is located at the highest point of its moving path, several plates 601 are arranged horizontally, and two adjacent plates 601 are fitted together, which can achieve covering protection for the screen 3 and prevent dust from contacting the screen 3 before feeding. In the process of the movable tube 2 descending and approaching the pharmaceutical equipment, the transmission assembly 8 drives the several rotating shafts 602 to rotate, which can change the state of the several plates 601, so that the path between the screen 3 and the fixed tube 1 is in a connected state, and the screen 3 can be used normally for screening and dust removal.

[0023] like Figure 2-Figure 5 As shown, as a preferred embodiment of the present invention, the connecting member 7 includes a positioning shaft 701 installed at the axis center of the screen 3, and an arc segment 702 installed coaxially with the positioning shaft 701, and the arc segment 702 is rotatably connected to a plurality of rotating shafts 602.

[0024] In one case of this embodiment, the contact surface between the arc segment 702 and the plurality of rotating shafts 602 is a spherical surface, and the rotating shafts 602 are rotatably connected thereto.

[0025] like Figure 3-Figure 5As shown, as a preferred embodiment of the present invention, a cone 703 is provided on the top of the positioning shaft 701, and the bottom diameter of the cone 703 is larger than the top diameter thereof.

[0026] In actual application of this embodiment, the raw materials falling from the material box enter the movable tube 2 through the fixed tube 1, and then fall to the cone 703 and collide with it. The cone 703 can make the raw materials diffuse, and then pass through the gap between two adjacent plates 601 to contact the screen 3.

[0027] like Figure 1-Figure 6 As shown, as a preferred embodiment of the present invention, the screen 3 is fixedly connected to the fixed tube 1, and is rotatably connected to the movable tube 2, the positioning shaft 701 is rotatably connected to the screen 3, a turntable 9 is rotatably installed on the outer surface of the fixed tube 1, and the turntable 9 is driven to rotate by an output source, the turntable 9 is connected to the movable tube 2 through a connecting rod 11, and the connecting rod 11 is a telescopic structure, and a brush 13 is provided on the plate body 601; when the movable tube 2 is located at the lowest point of its moving path, a plurality of plate bodies 601 are arranged vertically, and the brush 13 contacts with the surface of the screen 3.

[0028] In one case of this embodiment, the output source can be a motor assembly, or a gear assembly or a pulley assembly driven by a motor, as long as it can make the turntable 9 rotate, and this embodiment does not make any specific limitations here; the telescopic structure is a structure formed by nesting multiple stages of pipe fittings, and in actual application, a gear rack and an electric telescopic rod structure can also be used, and this embodiment does not make any specific limitations here.

[0029] In actual application of this embodiment, during the process of the output source driving the turntable 9 to rotate, the fixed tube 1 is always stationary, the screen 3 fixedly connected thereto is also stationary, and the assembly disk 4 is connected to the material box; during the descent of the movable tube 2, the connecting rod 11 gradually extends, and at the same time, the movable tube 2 rotates synchronously with the turntable 9, the connecting piece 7 and the conversion plate 6 in the movable tube 2 rotate synchronously, and the transmission assembly 8 also remains stationary relative to the movable tube 2. During this process, the transmission assembly 8 drives a number of plate bodies 601 to flip, that is, the plate bodies 601 rotate during the descent, and change from a horizontal arrangement to a vertical arrangement; when the movable tube 2 is located at the lowest point of its moving path, a number of plate bodies 601 are arranged vertically, and the brush 13 contacts the surface of the screen 3. At this time, when the movable tube 2 rotates, the conversion plate 6 rotates synchronously, and relative sliding occurs between the brush 13 and the screen 3, which can realize the cleaning of the surface of the screen 3. At the same time, the connecting piece 7 rotates synchronously, which can break up and spread the raw materials in contact with it, ensuring that the raw materials will not accumulate and can fully contact the screen 3.

[0030] like Figure 1-Figure 5As shown, as a preferred embodiment of the present invention, the number of the transmission components 8 is multiple, and the multiple transmission components 8 correspond to the multiple conversion plates 6 one by one, and the transmission components 8 include: Gear 801 is rotatably mounted on movable tube 2 and connected to rotating shaft 602 via belt 803; and The rack 802 is fixed on the rotating disk 9 and meshes with the gear 801 .

[0031] In one case of the present embodiment, an inner cavity is provided in the side wall of the movable tube 2, the gear 801 is rotatably installed in the inner cavity, the rack 802 passes through the inner cavity top plate and is fixedly connected to the turntable 9, and the rack 802 and the inner cavity top plate are slidably matched, the rotating shaft 602 is rotatably installed on the inner cavity side wall, passes through the inner cavity side wall and goes deep into the inner cavity, and is connected to the gear 801 through a belt 803, so as to realize the synchronous rotation of the rotating shaft 602 and the gear 801.

[0032] During actual application of this embodiment, during the synchronous rotation of the turntable 9 and the movable tube 2, the movable tube 2 descends to drive the rotating shaft 602 to descend, and the plate body 601, the belt 803 and the gear 801 descend synchronously. During this process, the meshing transmission between the gear 801 and the rack 802 realizes the self-rotation of the gear 801. At the same time, the belt 803 drives the rotating shaft 602 to rotate synchronously, and the plate body 601 can rotate synchronously during the descent to adjust its state, and flip from a horizontal arrangement to a vertical arrangement.

[0033] like Figure 1-Figure 6 As shown, as a preferred embodiment of the present invention, a brake assembly 10 connected to the movable tube 2 is installed on the fixed tube 1; when the movable tube 2 is located at the highest point of its moving path, the brake assembly 10 brakes the rotational movement of the movable tube 2, and the movable tube 2 and the turntable 9 both stop rotating.

[0034] In actual application of this embodiment, when the movable tube 2 is located at the highest point of its moving path, the movable tube 2 and the turntable 9 are stationary, which can facilitate the assembly between the assembly disk 4 and the material box. During this process, several conversion plates 6 are always in contact to protect the screen 3.

[0035] like Figure 1-Figure 6 As shown, as a preferred embodiment of the present invention, the brake assembly 10 includes a fixed ring 1001 fixed on the fixed tube 1 and a lifting ring 1002 fixed on the movable tube 2; when the movable tube 2 is located at the highest point of its moving path, the lifting ring 1002 contacts the fixed ring 1001 and the two are engaged.

[0036] In one case of this embodiment, the lifting ring 1002 is provided with a plurality of clamping blocks, the fixing ring 1001 is provided with a plurality of clamping slots, and the plurality of clamping slots correspond to the plurality of clamping blocks one by one.

[0037] In actual application of this embodiment, when the movable tube 2 is located at the highest point of its moving path, the lifting ring 1002 contacts and engages with the fixed ring 1001, and the movable tube 2 and the turntable 9 cannot rotate at this time; after the movable tube 2 descends, the lifting ring 1002 synchronously descends and separates from the fixed ring 1001, and the engagement state between the two is released, then the turntable 9 can be driven to rotate and drive the movable tube 2 to rotate synchronously; it should be noted that when the feeding is completed and the docking plate 5 is separated from the pharmaceutical equipment, the movable tube 2 rises and resets, when the lifting ring 1002 rises to the block and contacts the bottom surface of the fixed ring 1001, but the block is misaligned with the slot, the rise of the movable tube 2 is blocked, but it continues to rotate until the block is rotated to align with the slot, the rise of the movable tube 2 is removed, and the driving source 12 drives it to continue to rise, then the block enters the slot to form the engagement of the lifting ring 1002 and the fixed ring 1001, at this time The rotation of the movable tube 2 is blocked, then the movable tube 2 and the turntable 9 cannot rotate, remain stationary, and achieve state switching.

[0038] Working principle of the present invention: In the above-mentioned embodiment of the present invention, an anti-pollution feeding device for pharmaceutical manufacturing is provided, wherein the movable tube 2 is driven to descend by a driving source 12, and then the docking plate 5 is connected to the pharmaceutical equipment. During the descent of the movable tube 2, the transmission assembly 8 drives a number of conversion plates 6 to flip, and there is a gap between two adjacent conversion plates 6 for the raw materials to pass through and contact the screen 3. At this time, the path between the screen 3 and the fixed tube 1 is in a connected state, and the raw materials input into the material box are screened and dust-removed by the screen 3 and then put into the pharmaceutical equipment; after the feeding is completed, the connection between the docking plate 5 and the pharmaceutical equipment is released, and then the driving source 12 drives the movable tube 2 to rise and reset. During this process, a number of conversion plates 6 are flipped to fit each other, and the screen 3 is protected from pollution, which can avoid the problem that dust enters the device and adheres to the screen 3 after the top of the fixed tube 1 is opened during the connection process between the assembly plate 4 and the material box before feeding, thereby ensuring the screening and dust removal effect of the screen 3, and further realizing the anti-pollution of the feeding process.

[0039] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A pollution-proof feeding device for pharmaceutical production, characterized in that: include: A fixed tube (1) is provided with an assembly plate (4) connected to a material box at the top, a movable tube (2) is slidably mounted at the bottom of the fixed tube (1), and a docking plate (5) connected to a pharmaceutical device is provided at the bottom of the movable tube (2), a driving source (12) for driving the movable tube (2) to rise and fall is provided on the assembly plate (4), and a screen (3) is provided inside the movable tube (2); and A conversion plate (6), wherein a plurality of the conversion plates (6) are arranged in a circle and are all rotatably mounted on a connecting member (7), wherein the connecting member (7) is mounted at the axis of the screen (3), and the conversion plates (6) are connected to a transmission assembly (8) arranged on the movable tube (2); when the movable tube (2) is located at the highest point of its moving path, the plurality of conversion plates (6) fit together to block the path between the screen (3) and the fixed tube (1); when the driving source (12) drives the movable tube (2) to descend, the transmission assembly (8) drives the plurality of conversion plates (6) to flip, and a gap is provided between two adjacent conversion plates (6) to allow the raw material to pass through and contact the screen (3).

2. The anti-pollution feeding device for pharmaceutical production according to claim 1, characterized in that: The conversion plate (6) comprises a plate body (601) and a rotating shaft (602) connected to a connecting member (7); the rotating shaft (602) is connected to a transmission assembly (8); when the movable tube (2) is located at the highest point of its moving path, the plate body (601) is arranged horizontally; when the driving source (12) drives the movable tube (2) to descend, the transmission assembly (8) drives the plurality of rotating shafts (602) to rotate.

3. The anti-pollution feeding device for pharmaceutical production according to claim 2, characterized in that: The connecting member (7) comprises a positioning shaft (701) installed at the axis of the screen (3), and an arc segment (702) installed coaxially with the positioning shaft (701), and the arc segment (702) is rotatably connected to the plurality of rotating shafts (602).

4. The anti-pollution feeding device for pharmaceutical production according to claim 3, characterized in that: A cone (703) is provided at the top of the positioning shaft (701), and the bottom diameter of the cone (703) is greater than the top diameter thereof.

5. The anti-pollution feeding device for pharmaceutical production according to claim 3, characterized in that: The screen (3) is fixedly connected to the fixed tube (1) and is rotatably connected to the movable tube (2); the positioning shaft (701) is rotatably connected to the screen (3); a turntable (9) is rotatably mounted on the outer surface of the fixed tube (1), and the turntable (9) is driven to rotate by an output source; the turntable (9) is connected to the movable tube (2) via a connecting rod (11), and the connecting rod (11) is a telescopic structure; a brush (13) is provided on the plate body (601); when the movable tube (2) is located at the lowest point of its moving path, the plurality of plate bodies (601) are arranged vertically, and the brush (13) is in contact with the surface of the screen (3).

6. The anti-pollution feeding device for pharmaceutical production according to claim 5, characterized in that: There are multiple transmission assemblies (8), and the multiple transmission assemblies (8) correspond one-to-one to the multiple conversion plates (6), respectively. The transmission assembly (8) comprises: a gear (801) rotatably mounted on the movable tube (2) and connected to the rotating shaft (602) via a belt (803); and The rack (802) is fixed on the rotating disk (9) and meshes with the gear (801).

7. The anti-pollution feeding device for pharmaceutical production according to claim 5, characterized in that: The fixed tube (1) is provided with a brake assembly (10) connected to the movable tube (2); when the movable tube (2) is located at the highest point of its moving path, the brake assembly (10) brakes the rotational movement of the movable tube (2), so that the movable tube (2) and the rotating disk (9) both stop rotating.

8. The anti-pollution feeding device for pharmaceutical production according to claim 7, characterized in that: The brake assembly (10) comprises a fixed ring (1001) fixed on the fixed tube (1) and a lifting ring (1002) fixed on the movable tube (2); when the movable tube (2) is located at the highest point of its moving path, the lifting ring (1002) contacts the fixed ring (1001) and the two are engaged with each other.

Images