High-precision screening device for powder

Abstract

The utility model relates to the technical field of powder screening, and discloses a high-precision powder screening device which comprises a first screening frame and a second screening frame, two inserting grooves are machined in the two ends of the bottom of the first screening frame respectively, two inserting blocks are fixedly connected to the two ends of the top of the second screening frame, and the bottoms of the inserting blocks are connected into the inserting grooves in an inserted mode. The two ends of the first screening frame and the two ends of the second screening frame are each provided with two grips, the interiors of the grips are movably connected with limiting columns, the middles of the limiting columns are fixedly connected with pressing plates, and one ends of the limiting columns are connected to the interiors of the inserting blocks in an inserted mode. The pressing plate drives the limiting columns to move outwards, one ends of the limiting columns are separated from the interiors of the inserting blocks, then the first screening frame is lifted upwards, the first screening frame is separated from the second screening frame, and therefore the first screening frame and the second screening frame can be detached and cleaned conveniently, and operation is easy and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder sieving technical field, concretely to a powder high-precision sieving device. BACKGROUND

[0002] The powder high-precision sieving device is a kind of equipment specially used for fine screening of powdery materials, aims at separating different particle size components in powder, removing impurities and agglomerated particles, ensuring that the particle size uniformity of powder product meets high-precision requirements, and meeting the strict standards of powder quality in industries such as pharmaceutical, chemical and food.

[0003] In early powder processing process, manual screening is a common method. The operator uses a simple sieve to separate the powder by manual shaking or tapping. This method is extremely inefficient, and the screening accuracy completely depends on the experience and skills of the operator. With the development of industry, mechanical vibration screening devices began to appear. Early mechanical vibration screens are simple in structure, mainly driven by simple vibration motors to vibrate the screen.

[0004] For the existing related technology, the inventor believes that the following defects exist: the screen of the existing screening device is prone to clogging after long-term use, and since the screen is generally fixed on the screening device, it is not convenient to disassemble, which makes the cleaning of the screen more troublesome. UTILITY MODEL CONTENTS

[0005] To solve the technical problem that the screen is prone to clogging after long-term use, and since the screen is generally fixed on the screening device, it is not convenient to disassemble, which makes the cleaning of the screen more troublesome, the utility model provides a powder high-precision sieving device.

[0006] The utility model adopts the following technical scheme: a powder high-precision sieving device, including first screening frame and second screening frame, the second screening frame is located at the bottom of first screening frame, the bottom of second screening frame is provided with base, the bottom of base is fixedly connected with a plurality of stand, both sides of base are fixedly connected with two vibrators, the bottom of first screening frame is processed with two insertion slots respectively at both ends, the top of second screening frame is fixedly connected with two insertion blocks at both ends, the bottom of insertion block is insertedly connected in the inside of insertion slot, both ends of first screening frame and second screening frame are provided with two handles, the inside of handle is movably connected with limit post, the middle part of limit post is fixedly connected with pressing plate, one end of limit post is insertedly connected in the inside of insertion block, the other end of limit post is provided with reset spring.

[0007] Preferably, one side of the insertion slot is machined with a movable slot, and one end of the limit post is movably connected in the inside of the movable slot.

[0008] Preferably, one side of the plug block is processed with a limiting groove, and one end of the limiting column is connected to the inside of the limiting groove in a plug-in mode.

[0009] Preferably, the other end of the limiting column is fixedly connected with a limiting ring, and the limiting ring is located outside the handle.

[0010] Preferably, one end of the reset spring is fixedly connected to the inner side of the handle, and the other end of the reset spring is fixedly connected to one side of the pressing plate.

[0011] Preferably, a plurality of guide columns are fixedly connected to the top of the second screening frame, a plurality of guide holes are processed around the bottom of the first screening frame, and the top of the guide column is connected to the inside of the guide hole in a plug-in mode.

[0012] Preferably, a discharging groove is processed at the bottom of the base, and slopes are processed at both ends of the inside of the base, and the bottom of the slope is located on both sides of the discharging groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] In use, the powder is conveyed into the first screening frame, and then two vibrators are started, the vibrator drives the first screening frame and the second screening frame to vibrate, so that the powder is vibrated and screened in turn through the first screening frame and the second screening frame to the inside of the base, so that the powder is finally collected through the discharging groove after multi-stage high-precision screening.

[0015] In use, the first screening frame is held at both ends of the two handles, and the pressing plate is pressed, the pressing plate drives the limiting column to move outward, so that one end of the limiting column is separated from the inside of the plug block, and then the first screening frame is lifted upward, so that the first screening frame is separated from the second screening frame, thereby facilitating the disassembly and cleaning of the first screening frame and the second screening frame, and the operation is simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a first screening frame and second screening frame connecting structure schematic view of the utility model;

[0018] Figure 3 It is a first screening frame and handle connecting structure schematic view of the utility model;

[0019] Figure 4 It is a Figure 2 Enlarged schematic view of the middle A part of the utility model.

[0020] In the figure: 1, the first screening frame; 2, the second screening frame; 3, the base; 4, the column; 5, the vibrator; 6, the handle; 7, the discharge chute; 8, the plug; 9, the slot; 10, the pressing plate; 11, the limiting column; 12, the reset spring; 13, the limiting ring; 14, the limiting slot; 15, the movable slot; 16, the guide column; 17, the guide hole. DETAILED DESCRIPTION

[0021] The utility model will be described further, combined with the drawings and specific implementation, it is to be explained that, in the premise of not conflicting, the following described each embodiment or each technical feature between can be combined randomly to form new embodiment.

[0022] Example 1: please refer to Figure 1 Figure 4 The powder high-precision screening device of the embodiment, including first screening frame 1 and second screening frame 2, second screening frame 2 is located at the bottom of first screening frame 1, the bottom of second screening frame 2 is provided with base 3, the bottom of base 3 is fixedly connected with multiple columns 4, the both sides of base 3 are fixedly connected with two vibrators 5, the both ends of the bottom of first screening frame 1 are respectively processed with two slots 9, the both ends of the top of second screening frame 2 are fixedly connected with two plug-in blocks 8, the bottom of plug-in block 8 is insertedly connected in the inside of slot 9, the both ends of first screening frame 1 and second screening frame 2 are provided with two handles 6, the inside of handle 6 is movably connected with limiting column 11, the middle of limiting column 11 is fixedly connected with pressing plate 10, one end of limiting column 11 is insertedly connected in the inside of plug-in block 8, the other end of limiting column 11 is provided with reset spring 12;

[0023] When the powder needs to be screened, the powder is first delivered to the inside of first screening frame 1, then two vibrators 5 are started, vibrator 5 drives first screening frame 1 and second screening frame 2 to vibrate, so that the powder is screened by the vibration of first screening frame 1 and then enters the inside of second screening frame 2, and then is screened by the vibration of second screening frame 2 and enters the inside of base 3, and finally is collected after reaching the bottom of base 3, since the screening hole of second screening frame 2 is smaller than the screening hole of first screening frame 1, the powder can be screened at multiple levels with high precision;

[0024] Secondly, when the residual powder in the inside of first screening frame 1 and second screening frame 2 needs to be cleaned, hold the two handles 6 at the both ends of first screening frame 1 and press pressing plate 10 at the same time, pressing plate 10 drives limiting column 11 to move outward, so that one end of limiting column 11 is separated from the inside of plug-in block 8, then first screening frame 1 is lifted upward, so that first screening frame 1 is separated from second screening frame 2, thereby first screening frame 1 and second screening frame 2 are conveniently separated and disassembled, the inside of first screening frame 1 is conveniently cleaned, and the operation is simple and convenient;

[0025] ​Further, one side of the slot 9 is processed with a movable slot 15, one end of the limiting column 11 is movably connected in the inside of the movable slot 15, one side of the plug block 8 is processed with a limiting slot 14, one end of the limiting column 11 is insertedly connected in the inside of the limiting slot 14;

[0026] When the pressing plate 10 is pressed, the pressing plate 10 will drive the limiting column 11 to move outward, so that one end of the limiting column 11 is separated from the inside of the limiting slot 14, and one end of the limiting column 11 moves outward along the inside of the movable slot 15;

[0027] Further, the other end of the limiting column 11 is fixedly connected with the limiting ring 13, and the limiting ring 13 is located outside the handle 6. By arranging the limiting ring 13, the limiting ring 13 will limit the movement of the limiting column 11, avoiding the limiting column 11 from separating from the inside of the handle 6;

[0028] Further, one end of the reset spring 12 is fixedly connected to the inside of the handle 6, and the other end of the reset spring 12 is fixedly connected to one side of the pressing plate 10. By arranging the reset spring 12, when the pressing plate 10 is pressed, the pressing plate 10 will drive the reset spring 12 to compress, and when the pressing plate 10 is released, the reset spring 12 resets and extends. The reset spring 12 will drive the limiting column 11 to move, so that the limiting column 11 is inserted into the inside of the limiting slot 14 along the inside of the movable slot 15;

[0029] Further, a plurality of guide columns 16 are fixedly connected to the top of the second screening frame 2, a plurality of guide holes 17 are processed around the bottom of the first screening frame 1, and the top of the guide column 16 is insertedly connected in the inside of the guide hole 17. When the first screening frame 1 is installed, the first screening frame 1 is placed on the top of the second screening frame 2, so that the guide column 16 is inserted into the inside of the guide hole 17. By arranging the guide column 16 and the guide hole 17, the first screening frame 1 can be accurately installed on the top of the second screening frame 2;

[0030] Further, the bottom of the base 3 is processed with a discharging slot 7, and the inside of the base 3 is processed with a slope at both ends, and the bottom of the slope is located on both sides of the discharging slot 7. By arranging the slope on both sides of the base 3, the powder screened by the second screening frame 2 can be conveniently collected in the discharging slot 7 through the slope.

[0031] Working principle: by delivering powder to the inside of the first screening frame 1, then start two vibrator 5, vibrator 5 will drive the first screening frame 1 and the second screening frame 2 vibration, make the powder vibration screening in turn through the first screening frame 1 and the second screening frame 2 to the inside of the base 3, so that the powder in through multi-stage high-precision screening finally through the discharge slot 7 collection; when the need to clean the first screening frame 1 and the second screening frame 2 inside the residual powder, hold the two handles 6 of the first screening frame 1 both ends, and press the pressing plate 10, the pressing plate 10 will drive the limiting column 11 to move outward, so that one end of the limiting column 11 is separated from the inside of the insert block 8, and then lift the first screening frame 1 upward, so that the first screening frame 1 is separated from the second screening frame 2, so as to facilitate the disassembly and cleaning of the first screening frame 1 and the second screening frame 2, simple and convenient operation.

[0032] The above embodiment is only the preferred embodiment of the present application, and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by those skilled in the art based on the present application shall fall within the scope of protection of the present application.

Claims

1. A high-precision sieving device for powders, comprising a first sieving frame (1) and a second sieving frame (2), characterized in that, The second screening frame (2) is located at the bottom of the first screening frame (1), the bottom of the second screening frame (2) is provided with a base (3), a plurality of columns (4) are fixedly connected to the bottom of the base (3), two vibrators (5) are fixedly connected to the two sides of the base (3), two insertion slots (9) are respectively machined at the bottom of the first screening frame (1), two insertion blocks (8) are fixedly connected to the top of the second screening frame (2), the bottom of the insertion block (8) is insertedly connected in the insertion slot (9), two handles (6) are arranged at the two ends of the first screening frame (1) and the second screening frame (2), a limiting column (11) is movably connected in the handle (6), a pressing plate (10) is fixedly connected to the middle of the limiting column (11), one end of the limiting column (11) is insertedly connected in the insertion block (8), and the other end of the limiting column (11) is provided with a reset spring (12).

2. The high-precision sieving device for powder according to claim 1, characterized in that, One side of the insertion slot (9) is machined with a movable slot (15), and one end of the limiting column (11) is movably connected in the movable slot (15).

3. The high-precision sieving device for powder according to claim 1, characterized in that, One side of the insertion block (8) is machined with a limiting slot (14), and one end of the limiting column (11) is insertedly connected in the limiting slot (14).

4. The high-precision sieving device for powder according to claim 1, characterized in that, The other end of the limiting column (11) is fixedly connected with a limiting ring (13), and the limiting ring (13) is located outside the handle (6).

5. The high-precision sieving device for powder according to claim 1, characterized in that, One end of the reset spring (12) is fixedly connected to the inner side of the handle (6), and the other end of the reset spring (12) is fixedly connected to one side of the pressing plate (10).

6. The high-precision sieving device for powder according to claim 1, characterized in that, A plurality of guide columns (16) are fixedly connected to the top of the second screening frame (2), a plurality of guide holes (17) are machined at the bottom of the first screening frame (1), and the top of the guide column (16) is insertedly connected in the guide hole (17).

7. The high-precision sieving device for powder according to claim 1, characterized in that, A discharging groove (7) is machined at the bottom of the base (3), and slopes are machined at the two ends in the base (3), and the bottom of the slope is located on the two sides of the discharging groove (7).

Images