CN209804799U - Vibrating type powdering machine - Google Patents

Abstract

The utility model discloses a vibrating type powdering machine, which comprises a powder bin and a vibrating component; a porous matrix mounting part for mounting a porous matrix to be powdered is arranged on the powder bin, and a porous matrix preset area is arranged in the powder bin; the vibrating assembly comprises at least one group of vibrating plates symmetrically arranged on two sides of the preset area of the porous base body and a driving device for driving the vibrating plates to vibrate. In this way, the utility model discloses vibrating powdering machine can be used to pack the powder material in porous matrix, and it is high to fill saturation and homogeneity, and stability is high.

Description

Vibrating type powdering machine

Technical Field

The utility model relates to an electrode technical field, concretely relates to powder machine in vibrating.

Background

The nickel electrode is used as a reversible electrode with excellent electrochemical performance, and is widely applied to the positive electrode of an alkaline secondary battery, such as a common nickel-hydrogen battery, a nickel-zinc battery, a nickel-cadmium battery and the like. At present, most of the widely used nickel electrodes are formed by filling and compacting a mixed hydroxide powder mainly containing nickel hydroxide in a foamed nickel matrix as an active material, wherein the particle size of the active material is mainly within the range of 5-25 μm, the foamed nickel matrix is a spatial three-dimensional structure with an equivalent pore size (namely the average diameter of a spatial three-dimensional hole woven by nickel wires) of about 400-800 μm and a nickel wire diameter of about 80-120 μm in a woven hole, namely, small active material particles need to be filled in a foamed nickel hole with a volume which is hundreds of thousands of times larger than that of the nickel wire, and are hindered by the nickel wire with radial contrast in the filling process, so that local unevenness is easy to occur in the filling of the active material, and particularly when the foamed nickel matrix is thicker, the filling ratio of an intermediate layer is difficult to a surface layer, the filling unevenness is aggravated, and the instability of the powder feeding amount is caused.

For a nickel electrode of a certain thickness, the weight per unit area is influenced by the density of the active material and the density of the nickel matrix. For the foaming type nickel matrix, because the foaming type nickel matrix is produced by adopting a more accurate constant-speed electroplating mode, the amount of nickel deposited on a unit area is more uniform, namely the surface density of the nickel matrix is more uniform, generally speaking, the precision within +/-3 percent can be achieved, and the precision within a short-range can even be achieved within +/-1 percent. The nickel matrix accounts for about 10% of the weight of the nickel electrode, so the influence of the surface density fluctuation of the nickel matrix on the weight fluctuation of the nickel electrode is generally within +/-0.3%, and the weight control interval of the nickel electrode reaches about +/-2% by common battery manufacturers, namely the influence of the surface density fluctuation of the nickel matrix on the weight fluctuation of the nickel electrode is small. On the other hand, the foamed nickel substrate is manufactured by using foamed polyurethane foam as a template, and the foaming process of the foam is influenced by gravity, so that the distribution of bubbles changes according to a gravity gradient, namely the lower layer bubbles have small volume and the upper layer bubbles have large volume, therefore, the nickel substrate manufactured by using the foamed polyurethane foam as the template has a certain gradient change in the longitudinal cavity structure, especially has periodic change in the long process, along with the change gradient, the weight of the manufactured nickel electrode also changes obviously, especially before and after the connection positions of the nickel substrates in different sections, the weight of the nickel electrode also changes step due to the step change of the cavity structure, exceeds the control range, and defective products are generated or even scrapped. Generally, the nickel matrix obviously affects the weight fluctuation of the nickel electrode, and the surface density of the nickel matrix has small influence, so the main reason is that the space hole structure of the nickel matrix affects the filling uniformity of the active material, thereby causing the weight fluctuation of the nickel electrode.

The active material beta type spherical nickel hydroxide commonly used for the nickel electrode has the powder bulk density generally higher than 1.7g/mL and the tap density higher than 2.2g/mL, and before the nickel electrode is compacted, the average filling density of the active material is generally lower than 1.7g/mL or even lower than 1.6g/mL, namely the filling of the active material in the foaming type nickel matrix has a region lower than the bulk density, namely the filling is insufficient and uneven. In order to improve the filling uniformity, the current main mode is to adopt wet filling, the fluidity of aqueous slurry is better than that of dry powder, and the problem of uneven filling of a part of aqueous slurry is solved. However, in both dry filling and wet filling, the fluidity of the filling active material is different, and the space pore structure of the foamed nickel matrix is not changed, so that the filling uniformity is not fundamentally improved, and particularly, the step fluctuation of the matrix before and after the joining position is still remained. On the other hand, dry filling depends on the powder flowability of the active material dry powder, which mainly depends on the sphericity and surface smoothness of spherical nickel hydroxide, so the powder flowability of the dry powder is relatively stable although low; the wet filling depends on the fluidity of suspension or wet paste prepared by active substances, thickening agents, water and the like, the state of the aqueous slurry is complex and variable, and a plurality of indexes such as water content, suspension capacity, coagulation or gel velocity, thixotropy, rheological property, film forming property and the like are influenced by multiple factors and can strongly influence the filling uniformity, so that the state difference of the aqueous slurry is huge, and the slurry with excellent filling performance can be obtained only by controlling the aqueous slurry very finely. Therefore, the filling uniformity is not fundamentally solved although both the dry method and the wet method are superior and inferior, and the nickel electrode based on fibrous nickel has a problem of uneven filling when an active material is filled.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, the utility model provides a vibrating powdering machine.

The utility model adopts the technical proposal that: a vibrating type powder feeding machine comprises a powder bin and a vibrating assembly; the powder bin is provided with a porous matrix mounting part for mounting a porous matrix to be powdered, and a porous matrix preset area is arranged in the powder bin; the vibration assembly comprises at least one group of vibration plates symmetrically arranged on two sides of the preset area of the porous substrate and a driving device for driving the vibration plates to vibrate.

According to the utility model discloses a concrete embodiment, vibration board slope symmetry is located the both sides in porous base member default zone are the configuration of V style of calligraphy.

According to a specific embodiment of the present invention, the included angle between the vibrating plate and the horizontal plane is greater than 90 ° and less than or equal to 105 °.

According to the utility model discloses a specific embodiment, the length of vibration board is 30 ~ 300 mm. In addition, the distance between one end, close to the preset porous matrix area, of the vibrating plate and the preset porous matrix area is preferably 1-10 mm.

According to the utility model discloses a specific embodiment, the working face of vibration board is smooth plane or curved surface. The working surface of the vibrating plate is the opposite surface of the vibrating plate, and the curved surface is generally an outer arched curved surface.

According to the utility model discloses a specific embodiment, the length of vibration board is 30 ~ 300mm, the working face of vibration board is the smooth curved surface that the outline arc length is 30 ~ 300 mm.

According to a specific embodiment of the present invention, the driving device is connected to the vibrating plate through a connecting member.

According to the utility model relates to a concrete embodiment, be equipped with vibration component mounting opening on the powder storehouse, the connecting piece install in vibration component mounting opening, just the one end of connecting piece is located the outside of powder storehouse with drive arrangement connects, and the other end extends to the inside of powder storehouse with vibration board fixed connection.

According to the utility model discloses a concrete embodiment, the connecting piece with be equipped with the damping part between the vibration subassembly installing port.

According to a specific embodiment of the present invention, the driving device is a pneumatic vibrator. The amplitude of the driving device is preferably 0.5-3 mm.

The utility model has the beneficial technical effects that: the utility model provides a vibrating type powdering machine which can be used for filling powder materials into a porous matrix, and when in use, the powder materials can be assembled on a porous matrix mounting part on a powder bin through the porous matrix and arranged in a porous matrix preset area in the powder bin, then the powder material is contained in a powder bin, and then vibrating plates respectively arranged at two sides of a preset area of the porous matrix (namely two sides of the porous matrix) are driven to vibrate by a driving device in the driving vibration assembly, further causing the powder material filled in the powder bin to vibrate forcedly, so that the powder material has enough energy and probability to cross the obstruction in the porous matrix, the powder material is fully filled in the inner holes of the porous matrix, the filling saturation and uniformity are high, the stability is strong, the method is suitable for filling active substances into a porous nickel substrate in the preparation of the nickel electrode, and the weight fluctuation of the prepared nickel electrode is small.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic cross-sectional view of an embodiment of the vibrating powdering machine of the present invention;

FIG. 2 is a schematic cross-sectional view of another embodiment of the vibrating powdering machine of the present invention;

FIG. 3 is a SEM image of the spatial pore structure of the porous nickel electrode used in application example 1;

FIG. 4 is a graph showing the weight distribution of a nickel electrode obtained in application example 1;

FIG. 5 is a weight distribution diagram of the nickel electrode prepared in comparative example 1.

Detailed Description

The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The use of the terms "comprising" and "having" and any variations thereof herein, as used herein, are intended to cover non-exclusive inclusions, merely as a relative recitation of relative positions of elements in a figure, and thus, are not intended to exclude any other elements.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by a person skilled in the art that the embodiments and features of the embodiments in the present application can be combined with each other without conflict.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view of an embodiment of the vibrating type powdering machine of the present invention. As shown in fig. 1, the vibrating type breading machine of the present embodiment comprises a powder bin 11 and a vibrating assembly 12.

Powder bin 11 is used for splendid attire powder material, and its top has the feed inlet, is equipped with on the powder bin 11 to be used for assembling the porous base member installation department 111 of treating the porous base member of powdering, has porous base member preset area in the powder bin 11. Fig. 1 shows a structure in which the porous base 13 is mounted on the porous base mounting portion 111, and the porous base 13 is disposed vertically in the direction of gravity, but the porous base 13 is not a component of the vibratory powdering machine of the present embodiment. The porous matrix 13 is assembled on the porous matrix mounting part 111, and the mounted porous matrix 13 is positioned in a porous matrix preset area in the powder bin 11 to be powdered; the porous substrate mounting part 111 may be designed to be used for fixedly mounting the porous substrate to be powdered, or the porous substrate mounting part 111 may be used for movably mounting the porous substrate to be powdered, and further, the movable mounting may include rotatable mounting, retractable mounting, and the like. In this embodiment, the powder bin 11 is a structure with a wide top and a narrow bottom, so as to facilitate the mutual approach of powder particles in the bin during the use process, and the rise of the bulk density, thereby improving the filling density. The porous matrix mounting part 111 is arranged at the center of the bottom of the powder bin 11, and the porous matrix presetting area is positioned on the central axis of the powder bin 11, so that the integral stability of the machine body in the running process can be ensured. In other embodiments, the powder bin 11 can be designed in other shapes and structures, such as square, round, etc. The porous substrate mounting portion 111 may be provided at other positions.

The vibration module 12 includes at least one set of vibration plates 121 symmetrically disposed at both sides of the predetermined area of the porous substrate and a driving device 122 for driving the vibration plates 121 to vibrate. In the present embodiment, the vibrating plates 121 are a set, specifically two, and the vibrating plates 121 are obliquely and symmetrically disposed on two sides of the predetermined area of the porous substrate, and are arranged in a V shape, and the opposite surface (i.e., the working surface) of the vibrating plates 121 is a smooth plane. In use, after the porous base 13 is assembled, the porous base 13 is located at a predetermined area of the porous substrate, and the vibration plate 121 is obliquely disposed at both sides of the porous substrate 13. Through the configuration of slope V style of calligraphy, in the use, vibration subassembly 12 causes the powder granule to be forced to vibrate, and because the action of gravity, the powder granule of motion has vertical decurrent orientation power, under the barrier action of the vibration board 121 working surface that the interval reduces gradually from top to bottom, impels the powder granule to be close to each other, and bulk density rises, is favorable to promoting the powder granule packing density in the porous base member 13. Of course, in other embodiments, the number of the vibration plates 121 may also be multiple, and the arrangement manner of the vibration plates 121 may also be vertical or other manners.

as shown in fig. 1, the angle between the vibration plate 121 and the porous base 13 is γ; the width of the predetermined region of the porous substrate (i.e., the width of the horizontal section of the porous substrate 13) is D₁The length of the vibrating plate 121 is H; the width of the lower opening between the two vibrating plates 121 is D₂Width of upper end opening is D₃(ii) a The lower ends of the two vibrating plates 121 are spaced apart from the predetermined area of the porous substrate by a horizontal distance d.Wherein D is₂≤D₃，D₂＝D₁+2d，sinγ＝(D₃-D₂) and/2H. The included angle gamma between the vibrating plate 121 and the porous matrix 13 is preferably 0 < gamma < 15 degrees, namely the included angle between the vibrating plate 121 and the horizontal plane is more than 90 degrees and less than or equal to 105 degrees; in general, the larger the length H of the vibration plate 121, the slower the traveling speed of the porous substrate 13, i.e., the longer the duration of the vibration filling, the more sufficient the filling, and the higher the filling saturation and uniformity, and in combination with practical production, the length H of the vibration plate 121 is preferably 30 to 300 mm; in addition, the horizontal distance d between the lower ends of the two vibrating plates 121 and the predetermined area of the porous substrate is preferably 1 to 10 mm.

In the present embodiment, the driving device 122 is connected to the vibration plate 121 through a connection member 123. Specifically, the powder bin 11 is provided with a vibration component mounting opening 112, the connecting member 123 is mounted on the vibration component mounting opening 112, one end of the connecting member 123 is located outside the powder bin 11 and is connected to the driving device 122, and the other end of the connecting member 123 extends into the powder bin 11 and is fixedly connected to the vibration plate 121. Since the direct contact between the vibration component 12 and the powder bin 11 can cause the whole powdering machine to vibrate violently, the influence of the vibration component 12 on the powder bin 11 in the working process can be reduced by arranging a vibration damping component between the connecting piece 123 and the vibration component mounting opening 112. The vibration damping component can be a silica gel ring or a rubber ring and the like.

the driving device 122 is used for driving the vibrating plate 121 to vibrate so as to promote the powder particles to do forced vibration, the larger the amplitude of the vibration is, the higher the energy is, namely, the higher the capability of crossing the barrier action inside the porous matrix 13 is, the higher the frequency is, the more the probability times of crossing the barrier in unit time is, and the total superposition effect is that the higher probability is achieved to successfully cross the barrier and fill the region which is not filled and saturated. In addition, when the vibration frequency of the driving device 122 just accords with the natural frequency of the whole system, resonance is triggered, powder particles can move more fully, and the filling effect is better. When the vibration frequency is too high and the amplitude is too large, some parts of the active material particles may be torn apart by mechanical waves of different phases (i.e., particle pulverization), causing collapse of a special structure, which affects the performance of the product, and therefore, the upper limit of the vibration frequency of the driving device 122 is limited so as not to cause fragmentation of the active material particles; on the other hand, when the amplitude of the mechanical vibration is too high, the energy is excessively consumed, noise is caused, and negative effects such as extra equipment vibration and drift are generated, so the amplitude is not suitable to be too high or too low, and is generally suitable for 0.5-3 mm.

In this embodiment, the driving device 122 is a pneumatic vibrator, and the vibration frequency and amplitude can be adjusted by adjusting the working air pressure with the pneumatic vibrator, so that the operation is convenient, the energy consumption (air consumption) is low, the noise is low, and the operation is safe and environment-friendly.

The vibrating type powdering machine can be used for filling powder materials into a porous matrix, for example, for filling active materials into a porous nickel matrix and filling active materials, such as one or more of active materials of common nickel hydroxide, cobalt-coated nickel hydroxide, cobaltous oxide powder, cobaltous hydroxide powder, metal oxide or hydroxide additive powder for a nickel electrode, other non-metal additive powder, PTFE emulsion and the like. Because the porous nickel matrix has a special micro-space hole structure, active substance particles cannot smoothly enter the internal space for full filling due to the blocking effect of the nickel wires on the active substance, the active substance particles can be stacked to be slightly higher than the self loose packing density in a region with small blocking, and an unfilled space is left in a region with large blocking, or the distance between particles after filling is larger, the stacking is loose, and the stacking density is lower than the self loose packing density. If the vibrating type powdering machine is used for filling active substances, when the vibrating type powdering machine is used, the porous nickel base body is firstly assembled on the porous base body installation part on the powder bin and is arranged in the porous base body preset area in the powder bin, then the active substances are contained in the powder bin, then the vibrating plates on two sides of the porous base body preset area (namely two sides of the porous base body) are driven to vibrate through the driving device, and further powder particles are forced to vibrate, so that the powder particles have enough energy and probability to cross the obstruction of the nickel wires and are filled in the area which is not completely filled, when the vibration energy and the time are enough, enough active substance particles have enough high probability to cross the obstruction of the nickel wires and are filled in all spaces in the porous nickel base body, the filling saturation degree and the uniformity are high, the stability is high, and the weight fluctuation of the filled base body is small.

In the above embodiment, the opposite surface (i.e., the working surface) of the vibration plate 121 in the vibration assembly 12 is a smooth plane. In addition, other structural forms can be designed. Referring to fig. 2, fig. 2 is a schematic cross-sectional view of another embodiment of the vibrating powdering machine of the present invention. The vibrating type powdering machine of the present embodiment is different from that of fig. 1 in the structure of the opposite surfaces of the vibrating plate in the vibrating assembly.

As shown in fig. 2, the vibrating type powdering machine of the present embodiment includes a powder bin 21 and a vibrating assembly 22, the powder bin 21 is provided with a porous substrate mounting portion 211, and a porous substrate preset region is provided in the powder bin 21; the vibration assembly 22 includes a set of vibration plates 221 which are arranged symmetrically and obliquely in a V-shape on both sides of the predetermined area of the porous substrate, and a driving device 222 for driving the vibration plates 221 to vibrate, wherein the driving device 222 is connected with the vibration plates 221 through a connecting member 223. The opposite surface (i.e., the working surface) of the vibrating plate 221 is a smooth curved surface, specifically, a smooth outer shape-providing curved surface. Preferably, the opposite surface of the vibration plate 221 is a smooth outer contour curved surface with an outer contour arc length L of 30-300 mm. The interface contour of the curved surface is preferably 1/16-1/4 ellipses; the 1/4 ellipse is obtained by cutting the ellipse according to major and minor axes respectively to obtain 1/4 ellipse, and if smaller interface profile is required, then cutting the 1/4 ellipse into required interface profile such as 1/8 ellipse and 1/16 ellipse. Preferably, the ratio of the major axis to the minor axis of the ellipse is greater than or equal to 2. Other structural components of the vibrating type powder feeding machine of the embodiment are the same as those of the vibrating type powder feeding machine shown in fig. 1, and are not described again.

The vibrating type powdering machine of the embodiment can be used for filling powder materials in holes of the porous substrate, and when the vibrating type powdering machine is used, powder particles can be promoted to approach each other through the smooth outer shape-supplying curved surface of the vibrating plate 221 in the vibrating assembly 22 and the structural arrangement that the distance from top to bottom is gradually reduced, so that the filling saturation and the filling density are promoted.

The vibrating type powder coating machine in each embodiment can be particularly applied to filling active substances into a porous nickel matrix so as to prepare a nickel electrode. Specific application and filling effect contrastive analysis are carried out by comparing an application embodiment of the vibrating powdering machine with a comparative example of powdering by a conventional powdering machine, and the specific application and filling effect contrastive analysis are as follows:

Application example 1

A nickel electrode is prepared according to the following steps:

S1, width of 103mm, longitudinal tensile strength T of 1.8N/mm, and thickness D₀Expanded nickel of 1.8 + -0.1 mm as a porous nickel matrix, the spatial pore structure SEM image of which is shown in FIG. 3, is rolled to the horizontal cross-sectional width D of the porous nickel matrix using a roller₁＝1.27±0.01mm；

S2, filling an active material (in this example, β -type spherical nickel hydroxide) with the vibrating type powdering machine shown in fig. 1; wherein, when a driving device (namely a pneumatic vibrator) of a vibrating component in the vibrating type powdering machine works, the input air pressure is 0.4MPa, the frequency is about 400Hz, and the amplitude is 1 mm;

S3, after the nickel substrate is filled and the excessive active substances on the surface are scraped, the thickness of the nickel substrate, namely the filling thickness of the active substances, is changed into D₄the average filling density of the active substance in the porous nickel matrix is rho₄；

S4, finally rolling the mixture to a target thickness D by a double-roller machine₅The rolling area elongation η was measured to be 5% at 0.72 ± 0.01mm, and cut to a target size of 103 × 44.5mm to obtain a compacted density ρ with a thickness of 0.72 ± 0.01mm₅The target nickel electrode plate has the active substance filling amount of more than or equal to 10.0g and the concentration of 3.05 g/mL. Adding the weight of the porous nickel base to 1.42g to obtain the target interval of the weight of the nickel electrode sheet to be more than or equal to 11.42 g.

Calculated filling density ρ₄the filling saturation is 83%, namely 1.82 g/mL.

comparative example 1

A nickel electrode is prepared according to the following steps:

Taking the width of 103mm, the longitudinal tensile strength T of 1.8N/mm and the thickness D₀foamed nickel of 1.8 +/-0.1 mm is used as a porous nickel substrate, and is rolled to the horizontal section width D of the porous nickel substrate₁1.40 plus or minus 0.01 mm; then, the active material is filled by a conventional powder filling machine (i.e. a brush roller type filling device), and active material particles are filled into the nickel matrix through a rotating brush roller(ii) a And scraping off the active substances attached to the surface, finally rolling to the thickness of 0.72 +/-0.02 mm by using a roll pair machine, measuring the rolling area elongation eta to be 6%, and cutting to the target size of 103 multiplied by 44.5mm to obtain the target nickel electrode sheet with the thickness of 0.72 +/-0.02 mm, the compacted density of 3.05g/mL and the active substance filling amount of more than or equal to 10.0 g. Adding the weight of the porous nickel base to 1.42g to obtain the target interval of the weight of the nickel electrode sheet to be more than or equal to 11.42 g.

Calculated filling density ρ₄The filling saturation is 75 percent, namely 1.66 g/mL.

The weight distribution of the nickel electrode sheets prepared in application example 1 and comparative example 1 (the selected design area was 103 × 44.5mm) in the design areas prepared in application example 1 and comparative example 1 was obtained by weighing the nickel electrode sheets prepared in application example 1 and comparative example 1, and the results are shown in fig. 4 and 5, where fig. 4 is the packing density ρ prepared in application example 1₄Fig. 5 is a weight distribution diagram of the nickel electrode of comparative example 1 with the packing density ρ of 1.82g/mL₄Weight distribution of nickel electrode at 1.66 g/mL.

As can be seen from fig. 4 and 5, ρ₄The larger the filling saturation is, the higher the stable filling state of the filling is, the smaller the standard deviation of the weight distribution of the finally prepared nickel electrode plate is, namely the smaller the weight fluctuation is, and the nickel electrode plate with high consistency can be obtained by being more beneficial to actual production control. It can be seen that, compared with the conventional powdering machine for filling active materials in comparative example 1, the vibrating powdering machine shown in fig. 1 of application example 1 for filling active materials has better filling effect, higher filling density and saturation, and the nickel electrode prepared from the filled substrate has small weight fluctuation, which is beneficial to ensuring the performance of the product.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (9)

1. a vibrating type powdering machine is characterized by comprising a powder bin and a vibrating component; the powder bin is provided with a porous matrix mounting part for mounting a porous matrix to be powdered, and a porous matrix preset area is arranged in the powder bin; the vibration assembly comprises at least one group of vibration plates symmetrically arranged on two sides of the preset area of the porous substrate and a driving device for driving the vibration plates to vibrate.

2. A vibratory powdering machine according to claim 1, wherein said vibrating plates are obliquely and symmetrically disposed on both sides of said predetermined area of porous substrate in a V-shape configuration.

3. A vibrating type powdering machine according to claim 2, wherein the length of the vibrating plate is 30 to 300 mm.

4. A vibratory powdering machine according to claim 2, wherein the working surface of the vibrating plate is a smooth plane or curved surface.

5. A vibrating type powdering machine according to claim 4, wherein the length of the vibrating plate is 30-300 mm, and the working surface of the vibrating plate is a smooth curved surface with an arc length of the outer contour of 30-300 mm.

6. A vibratory powdering machine according to any one of claims 1-5, wherein said driving means is connected to said vibrating plate by a connecting member.

7. A vibrating type powder coating machine according to claim 6, wherein a vibrating component mounting opening is formed in the powder bin, the connecting member is mounted at the vibrating component mounting opening, one end of the connecting member is located outside the powder bin and connected with the driving device, and the other end of the connecting member extends to the inside of the powder bin and is fixedly connected with the vibrating plate.

8. A vibratory powdering machine according to claim 7, wherein a vibration damping member is provided between said connecting member and said vibration module mounting opening.

9. A vibratory powdering machine according to any one of claims 1-5, characterised in that the driving means is a pneumatic vibrator.