A low noise vibration screening device

Abstract

The utility model discloses a low-noise vibration screening device, which relates to the technical field of screening machines, including a screening machine body and a base, a shock absorber is arranged between the screening machine body and the base, and a first screening discharge pipe is arranged on one side of the screening machine body. The utility model adopts the above structure, uses the output end of the driving motor to drive the quantitative roller to rotate in the quantitative shell, and the lower end of the hopper is connected to the quantitative shell through a feeding pipe. Under the action of gravity, the drug particles are gathered in the feeding pipe at the upper end of the quantitative shell. Since the outer wall of the quantitative roller fits the inner wall of the quantitative shell, when the quantitative groove of the quantitative roller moves to the feeding pipe at the upper end of the corresponding quantitative shell, the drug enters the quantitative groove, and then when the quantitative roller rotates until the quantitative groove filled with the drug corresponds to the feeding pipe at the lower end of the quantitative shell, the drug falls into the feeding pipe under the action of gravity, so that quantitative feeding can be conveniently performed during the drug screening process.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening machines, and particularly relates to a low-noise vibration screening device. Background Art

[0002] Drug screening is the detection and testing of preliminary pharmacological activity of substances that may be used as drugs, in order to discover their medicinal value and clinical use, and provide the most initial basis and information for new drug research and development. Successful screening can shorten the research and development cycle of innovative drugs, reduce costs, reduce risks and improve efficiency. In the process of drug production and processing, screening machines are needed to screen them.

[0003] A Chinese patent with announcement number CN213435550U discloses a low-noise vibrating screening machine, comprising a base and telescopic supporting legs, the upper surface of the base is fixedly connected with the telescopic supporting legs, the top of the telescopic supporting legs is fixedly connected with a shell, the top of the shell is fixedly connected with a feed pipe, the inside of the shell is fixedly connected with a noise reduction plate, the upper end of the inner wall of the shell is fixedly connected with a first fixed block, the inside of the first fixed block is fixedly connected with a first filter screen, the end of the first filter screen is located on the other side of the inner wall of the shell and is fixedly connected with a second fixed block, the inside of the second fixed block is fixedly connected with a second filter screen, the lower part of the second filter screen is located between the inner walls of the shell and is fixedly connected with a fixed plate, and vibration devices are provided below the ends of the first filter screen and the second filter screen.

[0004] Through the above-mentioned prior art, we can understand that the traditional vibration screening machine can realize the screening function of the product through the internal first filter screen and the second filter screen in cooperation with the vibration device below. However, in the actual use and operation process, we found that the vibration screening machine still has some shortcomings. For example, during screening, drug particles are added through the feed pipe, and the amount of drug particles added cannot be quantified. If too much is directly fed to the first filter screen, it is easy to affect the screening quality, and if too little is too much, it is easy to reduce the screening efficiency. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a low-noise vibration screening device to solve the problems mentioned in the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A low-noise vibration screening device comprises a screening machine body and a base, a shock absorber is arranged between the screening machine body and the base, a first screening discharge pipe is arranged on one side of the screening machine body, a second screening discharge pipe and a third screening discharge pipe are arranged on the side of the screening machine body away from the first screening discharge pipe, a feed pipe is arranged on the upper end of the screening machine body, a quantitative mechanism is arranged on the upper end of the feed pipe, a fixing frame is fixedly installed on the upper end of the screening machine body, and the fixing frame is clamped with the lower end of the fixing mechanism and the quantitative mechanism;

[0008] The quantitative mechanism comprises a quantitative shell and a quantitative roller, the outer side of the quantitative shell is symmetrically fixedly connected with a feeding pipe, the upper end of the quantitative shell is fixedly installed with a hopper through the feeding pipe, the ends of the quantitative rollers are fixedly connected with a connecting shaft, the quantitative rollers are rotatably connected to the inner side of the quantitative shell through the connecting shaft, the outer surface of the quantitative roller is close to the inner surface of the quantitative shell, the outer side of the quantitative shell is fixedly installed with a bracket, the side of the bracket away from the quantitative shell is fixedly installed with a driving motor, the connecting shaft at one end of the quantitative roller passes through the quantitative shell and the output end of the driving motor is fixedly installed, the outer surface of the quantitative roller is provided with quantitative grooves at equal angles, the lower end of the quantitative shell is fixedly installed with a base frame, the feeding pipe at the lower end of the quantitative shell is plugged into the feeding pipe at the upper end of the screening machine body, the base frame is plugged into the inner side of the fixed frame, the fixed frame is clamped with the base frame through the fixed mechanism, and the screening machine body can be conveniently quantitatively discharged through the quantitative mechanism;

[0009] The fixing mechanism includes an installation cavity, which is symmetrically opened on the inner side of the fixing frame, a slide is slidably connected to the inner side of the installation cavity, a clamping block is symmetrically fixedly installed on one side of the slide, the clamping end of the clamping block movably penetrates the cavity wall of the installation cavity and is clamped with the base frame, a pull rod is symmetrically fixedly connected to the side of the slide away from the clamping block, the end of the pull rod away from the slide slides through the cavity wall of the installation cavity and is fixedly installed with the same pull block, and a spring is sleeved on the end of the pull rod close to the slide, and the screening machine main body and the quantitative mechanism can be conveniently disassembled and assembled through the fixing mechanism.

[0010] As a preferred technical solution, a hopper cover is rotatably connected to one side of the upper end of the hopper through a hinge, and the hopper cover covers the hopper opening. The hopper cover can be flipped over to cover and protect the hopper opening when not in use.

[0011] As a preferred technical solution, a coupling is provided at the end of one of the connecting shafts on the outside of the metering roller, and the drive motor is fixedly installed on the outside of the bracket by screws. The end of one of the connecting shafts on the outside of the metering roller is fixedly installed through the coupling and the output end of the drive motor. The drive motor is connected to the bracket by screws, and the connecting shaft at one end of the metering roller is installed through the coupling and the output end of the drive motor, which can facilitate the subsequent disassembly and maintenance of the drive motor.

[0012] As an optimal technical solution, the outer wall of the feed pipe at the lower end of the quantitative shell is fixedly connected with a retaining frame, and the retaining frame is arranged above the feed pipe. Through the retaining frame, the feed pipe at the lower end of the quantitative shell can be conveniently limited and inserted into the feed pipe.

[0013] As a preferred technical solution, limiting grooves are symmetrically provided on the inner side of the installation cavity, and the ends of the slide plate are slidably connected to the inner side of the limiting grooves. The limiting grooves can facilitate the limited sliding of the slide plate in the installation cavity.

[0014] As an optimal technical solution, the upper end surface of the card block's insertion end is inclined, and the outer side of the base frame is symmetrically provided with card slots, and the card block's insertion end and the card slot are engaged with each other. Through the card slot, the card block of the fixed frame can be easily engaged and fixed to the base frame.

[0015] As a preferred technical solution, the inner side of the fixing frame is symmetrically provided with fixing holes, and the fixing holes are fixed to the upper end of the screening machine body by screws. The fixing frame can be conveniently installed on the screening machine body through the fixing holes.

[0016] In summary, the utility model mainly has the following beneficial effects:

[0017] First, the output end of the driving motor is used to drive the metering roller to rotate in the metering shell, and the lower end of the hopper is connected to the metering shell through a feeding pipe. Under the action of gravity, the drug particles are gathered in the feeding pipe at the upper end of the metering shell. Since the outer wall of the metering roller fits the inner wall of the metering shell, when the metering groove of the metering roller moves to the feeding pipe at the upper end of the corresponding metering shell, the drug enters the metering groove. Then, when the metering roller rotates until the metering groove filled with the drug corresponds to the feeding pipe at the lower end of the metering shell, the drug falls into the feeding pipe under the action of gravity, so that quantitative feeding can be conveniently performed during the drug screening process;

[0018] Second, insert the material passing pipe at the lower end of the quantitative shell into the feed pipe, and then insert the base frame at the lower end into the fixed frame. During the insertion process, the lower end of the base frame is squeezed along the inclined surface of the block. At the same time, the slide plate connected to the block slides in the installation cavity and squeezes the spring sleeved on the outside of the pull rod. When the card-in end of the block corresponds to the position of the card slot at the lower end of the base frame, the spring elastically resets and pushes the block connected to the slide plate into the card slot of the base frame. When disassembling, you only need to pull the pull blocks on both sides of the fixed frame. The pull blocks drive the slide plate to slide through the pull rod. After the block on the slide is separated from the card slot on the base frame, the base frame and the fixed frame can be disassembled, thereby facilitating the disassembly and maintenance of the quantitative mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a rear view of the utility model;

[0021] Figure 3 It is a schematic diagram of the quantitative mechanism structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the quantitative roller structure of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0024] 1. Base; 2. Shock absorber; 3. Screening machine body; 4. First screening discharge pipe; 5. Second screening discharge pipe; 6. Third screening discharge pipe; 7. Dosing mechanism; 701. Dosing shell; 702. Feed pipe; 703. Hopper; 704. Base frame; 705. Bracket; 706. Driving motor; 707. Dosing roller; 708. Dosing slot; 709. Connecting shaft; 8. Feeding pipe; 9. Fixed frame; 10. Coupling; 11. Bucket cover; 12. Stop frame; 13. Card slot; 14. Fixed mechanism; 141. Mounting cavity; 142. Pull block; 143. Pull rod; 144. Spring; 145. Slide plate; 146. Card block; 15. Limiting slot; 16. Fixing hole. DETAILED DESCRIPTION

[0025] refer to Figures 1 to 5 A low-noise vibration screening device described in this embodiment includes a screening machine body 3 and a base 1, a shock absorber 2 is arranged between the screening machine body 3 and the base 1, a first screening discharge pipe 4 is arranged on one side of the screening machine body 3, a second screening discharge pipe 5 and a third screening discharge pipe 6 are arranged on the side of the screening machine body 3 away from the first screening discharge pipe 4, a feed pipe 8 is arranged on the upper end of the screening machine body 3, a quantitative mechanism 7 is arranged on the upper end of the feed pipe 8, a fixing frame 9 is fixedly installed on the upper end of the screening machine body 3, and the fixing frame 9 is clamped with the lower end of the quantitative mechanism 7 through the fixing mechanism 14; the shock absorber 2 is specifically a damping spring 144 shock absorber 2 It is mainly composed of shock-absorbing damping and shock-absorbing springs 144. The shell wall of the screening machine body 3 is made of sound insulation and noise reduction materials. The screening machine body 3 cooperates with the vibration device below through the first and second internal filtering screens to realize the screening function of the product, and after screening, it is discharged through the corresponding first screening discharge pipe 4, second screening discharge pipe 5 and third screening discharge pipe 6. The vibration device has the same functional structure as the vibration device in a low-noise vibration screening machine disclosed in the Chinese patent with announcement number CN213435550U, and the above structures are all functions in the prior art, so no more details will be given again;

[0026] The quantitative mechanism 7 includes a quantitative shell 701 and a quantitative roller 707. The outer side of the quantitative shell 701 is symmetrically fixedly connected with a feed pipe 702. The upper end of the quantitative shell 701 is fixedly installed with a hopper 703 through the feed pipe 702. The ends of the quantitative roller 707 are fixedly connected with a connecting shaft 709. The quantitative roller 707 is rotatably connected to the inner side of the quantitative shell 701 through the connecting shaft 709. The outer surface of the quantitative roller 707 is close to the inner surface of the quantitative shell 701. A bracket 705 is fixedly installed on the outer side of the quantitative shell 701. A drive motor 706 is fixedly installed on the side of the bracket 705 away from the quantitative shell 701. The connecting shaft 709 at one end of the quantitative roller 707 penetrates the quantitative shell 701 and the output end of the drive motor 706 and is fixedly installed. A quantitative groove 708 is opened at an equal angle on the outer surface of the quantitative roller 707. The lower end of the quantitative shell 701 is fixedly installed with a base frame 704. The feed pipe 702 at the lower end of the quantitative shell 701 and the upper surface of the screening machine body 3 are fixedly connected. The feeding pipe 8 at the end is plugged in, the bottom frame 704 is plugged in the inner side of the fixed frame 9, and the fixed frame 9 is clamped with the bottom frame 704 through the fixing mechanism 14. After the screened drug particles are placed in the hopper 703, the quantitative roller 707 is driven by the output end of the driving motor 706 to rotate in the quantitative shell 701, and the lower end of the hopper 703 is connected to the quantitative shell 701 through the feeding pipe 702. Under the action of gravity, the drug particles are gathered in the feeding pipe 702 at the upper end of the quantitative shell 701, and the drug particles are collected by the feeding pipe 702. When the outer wall of the quantitative roller 707 is fitted with the inner wall of the quantitative shell 701, when the quantitative groove 708 of the quantitative roller 707 moves to the corresponding feeding tube 702 at the upper end of the quantitative shell 701, the drug enters the quantitative groove 708, and then when the quantitative roller 707 rotates until the quantitative groove 708 filled with the drug corresponds to the feeding tube 702 at the lower end of the quantitative shell 701, the drug falls into the feeding tube 8 under the action of gravity, so that quantitative feeding can be conveniently performed during the drug screening process;

[0027] The fixing mechanism 14 includes an installation cavity 141, which is symmetrically opened on the inner side of the fixing frame 9. A slide plate 145 is slidably connected to the inner side of the installation cavity 141. A clamping block 146 is symmetrically fixedly installed on one side of the slide plate 145. The clamping end of the clamping block 146 movably penetrates the cavity wall of the installation cavity 141 and is clamped with the bottom frame 704. A pull rod 143 is symmetrically fixedly connected to the side of the slide plate 145 away from the clamping block 146. The end of the pull rod 143 away from the slide plate 145 slides through the cavity wall of the installation cavity 141 and is fixedly installed with the same pull block 142. A spring 144 is sleeved on the end of the pull rod 143 close to the slide plate 145. When installing the quantitative mechanism 7, the feed pipe 702 at the lower end of the quantitative shell 701 is inserted into the feed pipe 8, and then the bottom frame 704 at the lower end is inserted into the fixed 146 is connected to the bottom of the frame 704, and the bottom of the frame 704 is connected to the bottom of the frame 704. When the bottom of the frame 704 is connected to the bottom of the frame 704, the bottom of the frame 704 is connected to the bottom of the frame 704. When the bottom of the frame 704 is connected to the bottom of the frame 704, the bottom of the frame 704 is connected to the bottom of the frame 704. When the bottom of the frame 704 is connected to the bottom of the frame 704, the bottom of the frame 704 is connected to the bottom of the frame 704. When the bottom of the frame 704 is connected to the bottom of the frame 704, the bottom of the frame 704 is connected to the bottom of the frame 704. When the bottom of the frame 704 is connected to the bottom of the frame 704, the bottom of the frame 704 is connected to the bottom of the frame 704. When the bottom of the frame 704 is connected to the bottom of the frame 704, the bottom of the frame 704 is connected to the bottom of the frame 704. When the bottom of the frame 704 is connected to the bottom of the frame 704, the bottom of the frame 704 and the bottom of the frame 704 are connected to the bottom of the frame 704.

[0028] refer to Figure 1 A hopper cover 11 is rotatably connected to one side of the upper end of the hopper 703 through a hinge, and the hopper cover 11 covers the hopper opening of the hopper 703. When the screening machine body 3 is not in use, the hopper cover 11 can be flipped over to cover the hopper opening of the hopper 703 for protection.

[0029] refer to Figure 3 A coupling 10 is provided at the end of one of the connecting shafts 709 on the outside of the metering roller 707, and the drive motor 706 is fixedly installed on the outside of the bracket 705 by screws. The end of one of the connecting shafts 709 on the outside of the metering roller 707 is fixedly installed through the coupling 10 and the output end of the drive motor 706. The drive motor 706 is connected to the bracket 705 by screws, and the output end of the drive motor 706 is connected to the connecting shaft 709 at one end of the metering roller 707 through the coupling 10, and both can be disassembled and assembled to facilitate subsequent maintenance.

[0030] refer to Figure 3 The outer wall of the feeding pipe 702 at the lower end of the quantitative shell 701 is fixedly connected with a baffle frame 12, and the baffle frame 12 is arranged above the feeding pipe 8. The baffle frame 12 at the lower end of the quantitative shell 701 can be used to conveniently limit the feeding pipe 702 at the lower end of the quantitative shell 701 and the inner wall of the feeding pipe 8 when they are plugged in.

[0031] refer to Figure 5 The inner side of the installation cavity 141 is symmetrically provided with a limiting groove 15 , and the end of the slide plate 145 is slidably connected to the inner side of the limiting groove 15 . The limiting groove 15 can facilitate the limited sliding of the slide plate 145 in the installation cavity 141 .

[0032] refer to Figure 5 The upper end surface of the card-in end of the card block 146 is inclined, and a card slot 13 is symmetrically opened on the outer side of the base frame 704. The card-in end of the card block 146 is engaged with the card slot 13. The inclined card-in end of the card block 146 can be conveniently engaged and fixed with the card slot 13 of the base frame 704.

[0033] refer to Figure 5 The inner side of the fixing frame 9 is symmetrically provided with fixing holes 16, and the fixing holes 16 are fixedly mounted on the upper end of the screening machine body 3 by screws. By using the fixing holes 16 on the fixing frame 9, the fixing frame 9 can be conveniently installed and fixed on the screening machine body 3.

[0034] Principle and advantages of use: During use, when feeding into the screening machine body 3, it is only necessary to place the screened drug particles in the hopper 703, and then use the output end of the driving motor 706 to drive the quantitative roller 707 to rotate in the quantitative shell 701, and the lower end of the hopper 703 is connected to the quantitative shell 701 through the feeding tube 702. Under the action of gravity, the drug particles gather in the feeding tube 702 at the upper end of the quantitative shell 701. Since the outer wall of the quantitative roller 707 fits the inner wall of the quantitative shell 701, when the quantitative groove 708 of the quantitative roller 707 moves to the feeding tube 702 at the upper end of the corresponding quantitative shell 701, the drug enters the quantitative groove 708. Then, when the quantitative roller 707 rotates until the quantitative groove 708 filled with the drug corresponds to the feeding tube 702 at the lower end of the quantitative shell 701, the drug falls into the feeding tube 8 under the action of gravity;

[0035] When installing the quantitative mechanism 7, the feed pipe 702 at the lower end of the quantitative shell 701 is inserted into the feed pipe 8, and then the base frame 704 at the lower end is inserted into the fixed frame 9. During the insertion process, the lower end of the base frame 704 is squeezed along the inclined surface of the block 146. At the same time, the slide plate 145 connected to the block 146 slides in the installation cavity 141 and squeezes the spring 144 sleeved on the outside of the pull rod 143. When the snap-in end of the block 146 corresponds to the position of the slot 13 at the lower end of the base frame 704, the spring 144 elastically resets and pushes the block 146 connected to the slide plate 145 into the slot 13 of the base frame 704. When disassembling, it is only necessary to pull the pull blocks 142 on both sides of the fixed frame 9. The pull blocks 142 drive the slide plate 145 to slide through the pull rod 143, and after the block 146 on the slide plate 145 is separated from the slot 13 on the base frame 704, the base frame 704 and the fixed frame 9 can be disassembled and maintained.

Claims

1. A low-noise vibration screening device, comprising a screening machine body and a base, characterized in that: A shock absorber is provided between the screening machine body and the base, a first screening discharge pipe is provided on one side of the screening machine body, a second screening discharge pipe and a third screening discharge pipe are provided on the side of the screening machine body away from the first screening discharge pipe, a feed pipe is provided on the upper end of the screening machine body, a quantitative mechanism is provided on the upper end of the feed pipe, a fixing frame is fixedly installed on the upper end of the screening machine body, and the fixing frame is clamped with the lower end of the fixing mechanism and the quantitative mechanism; The quantitative mechanism comprises a quantitative shell and a quantitative roller, the outer side of the quantitative shell is symmetrically fixedly connected with a feeding pipe, the upper end of the quantitative shell is fixedly installed with a hopper through the feeding pipe, the ends of the quantitative roller are fixedly connected with a connecting shaft, the quantitative roller is rotatably connected to the inner side of the quantitative shell through the connecting shaft, the outer surface of the quantitative roller is close to the inner surface of the quantitative shell, the outer side of the quantitative shell is fixedly installed with a bracket, the side of the bracket away from the quantitative shell is fixedly installed with a driving motor, the connecting shaft at one end of the quantitative roller passes through the quantitative shell and the output end of the driving motor is fixedly installed, the outer surface of the quantitative roller is provided with quantitative grooves at equal angles, the lower end of the quantitative shell is fixedly installed with a base frame, the feeding pipe at the lower end of the quantitative shell is plugged into the feeding pipe at the upper end of the screening machine body, the base frame is plugged into the inner side of the fixed frame, and the fixed frame is clamped with the base frame through the fixing mechanism; The fixing mechanism includes an installation cavity, which is symmetrically opened on the inner side of the fixing frame, a slide is slidably connected to the inner side of the installation cavity, a clamping block is symmetrically fixedly installed on one side of the slide, the clamping end of the clamping block movably penetrates the cavity wall of the installation cavity and is clamped with a base frame, a pull rod is symmetrically fixedly connected to the side of the slide away from the clamping block, the end of the pull rod away from the slide slides through the cavity wall of the installation cavity and is fixedly installed with the same pull block, and a spring is sleeved on the end of the pull rod close to the slide.

2. A low noise vibration screening device according to claim 1, characterized in that: One side of the upper end of the hopper is rotatably connected with a hopper cover through a hinge, and the hopper cover covers the hopper opening of the hopper.

3. A low noise vibration screening device according to claim 1, characterized in that: A coupling is provided at the end of one of the connecting shafts outside the metering roller, the driving motor is fixedly mounted on the outside of the bracket by screws, and one of the connecting shaft ends outside the metering roller is fixedly mounted through the coupling and the output end of the driving motor.

4. A low noise vibration screening device according to claim 1, characterized in that: The outer wall of the feeding pipe at the lower end of the quantitative shell is fixedly connected with a baffle frame, and the baffle frame is arranged above the feeding pipe.

5. A low-noise vibration screening device according to claim 1, characterized in that: The inner side of the installation cavity is symmetrically provided with limiting grooves, and the end of the slide plate is slidably connected to the inner side of the limiting groove.

6. A low-noise vibration screening device according to claim 1, characterized in that: The upper end surface of the card-in end of the card block is in an inclined shape, and a card slot is symmetrically provided on the outer side of the base frame, and the card-in end of the card block is card-connected with the card slot.

7. A low noise vibration screening device according to claim 1, characterized in that: The inner side of the fixing frame is symmetrically provided with fixing holes, and the fixing holes are fixedly mounted on the upper end of the screening machine body by screws.

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