Powder coating particle uniformity detection equipment

Abstract

The invention relates to the field of powder particle uniformity detection, and particularly discloses powder coating particle uniformity detection equipment which comprises a shell assembly and a screening assembly arranged in the shell assembly. The shell assembly comprises a plurality of detection cylinders distributed in the vertical direction, auxiliary cylinders with the inner diameter larger than that of the detection cylinders are arranged between the adjacent detection cylinders, and the tops and the bottoms of the auxiliary cylinders and the detection cylinders are connected into a whole through conical cylinders. The screening assembly comprises a vertical shaft which is vertically arranged in the middle of the inner side of the shell assembly. According to the powder coating particle uniformity detection equipment, the specially-designed shell assembly is matched with the screening assembly and the adjusting assembly, efficient screening detection can be achieved, blockage can be reduced, powder particles on the tops of multiple screens can be rapidly discharged after screening, a rotating plate scrapes the powder particles during screening, blockage is reduced, the powder particles incline after screening, and the screening efficiency is improved. Discharging of powder particles is achieved, convenience is improved, and the detection efficiency is conveniently improved.

Description

Technical Field

[0001] The invention relates to the field of powder particle uniformity detection, and in particular to a powder coating particle uniformity detection device. Background Art

[0002] Powder coating is a new type of solvent-free 100% solid powder coating. Powder coating has excellent corrosion resistance, wear resistance, weather resistance and decorative properties, and can be widely used in home appliances, automobiles, construction, furniture and other fields. Powder coatings often need to be tested for quality after production, and the uniformity of powder particles can be used as an evaluation indicator of product quality, so it is necessary to test the uniformity of powder particles.

[0003] At present, the detection method of powder particle uniformity is mostly screening method, and its specific principle is to use screens with different apertures to grade the powder, and to evaluate the uniformity of the particles by measuring the mass distribution of the powder within different particle size ranges. There are two main forms of screens in the prior art. One type of screen is tilted, such as a uniformity detection device for a powdered detergent disclosed in publication number CN217786829U, and the other type is a horizontal screen, such as a plastic particle uniformity test device disclosed in publication number CN212459301U. Although the former is not easy to clog and is easy to discharge when tilted, the particles are prone to incomplete screening, that is, they are discharged along the screen, especially when the powder particles are thick or piled up. Although the latter can grasp the screening time and has a better effect, the discharge detection is very inconvenient, especially the multi-stage screens, which often need to be removed one by one and manually dumped and weighed for detection, the convenience of use is poor, and the thick powder particles are prone to clogging.

[0004] Therefore, it is necessary to propose a powder coating particle uniformity detection device to solve the above problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a powder coating particle uniformity detection device, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A powder coating particle uniformity detection device comprises a housing component and a screening component arranged in the housing component;

[0008] The housing assembly comprises a plurality of detection cylinders distributed along the vertical direction, and a secondary cylinder having an inner diameter larger than that of the detection cylinder is arranged between adjacent detection cylinders, and the top and bottom of the secondary cylinder are connected to the detection cylinder as a whole through a conical cylinder;

[0009] The screening assembly includes a vertical shaft arranged in the middle of the inner side of the housing assembly and arranged vertically, a horizontal screen is movably arranged inside the detection cylinder, and the middle of the screen is rotatably connected to the vertical shaft, a rotating plate for scraping powder particles is arranged at the corresponding position of the side wall of the vertical shaft and the top of the screen, and the rotating plate is arranged along the radial direction of the vertical shaft, and a driving structure for driving the vertical shaft to rotate is arranged on the top of the housing assembly;

[0010] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said adjusting base is an industrially-friendly manufacturing method and said adjusting base is a computer-readable storage medium. said computer-readable storage medium has a first end portion and a second end portion. said computer-readable storage medium has a first end and a second end portion. said computer-readable storage medium has a first end and a second end portion.

[0011] Preferably, the edge of the sieve is slidably connected to the inner wall of the detection cylinder, and the sliding direction is a vertical direction, and the apertures of the plurality of sieves decrease in sequence from top to bottom.

[0012] Preferably, the housing assembly is arranged inside a frame-shaped rack, and the upper and lower ends of the vertical axis are rotatably connected to the upper and lower ends of the rack respectively;

[0013] The driving structure includes a motor arranged at one end of the top of the frame, an end face gear driven to rotate by the motor is arranged at the output end of the motor, and a second bevel gear meshing with the end face gear is fixedly arranged on the outer side of the upper end of the vertical shaft, so that the motor drives the vertical shaft to rotate through the end face gear and the second bevel gear;

[0014] The hydraulic cylinder is fixed to the top of the frame.

[0015] Preferably, the middle portion of the third connecting frame is an annular structure, and the annular structure is located outside the vertical axis, the inner diameter of the annular structure is larger than the diameter of the vertical axis, and the rotating ring is rotatably arranged at the bottom of the annular structure.

[0016] Preferably, an annular receiving trough body is provided on the inner side of the secondary cylinder, and the inner circle of the receiving trough body corresponds to the outer edge of the screen, and the receiving trough body and the inner wall of the secondary cylinder are slidably connected, and the sliding direction is displaced in the vertical direction, and a second connecting frame is provided on the inner side of the receiving trough body, and the middle part of the second connecting frame is rotatably connected to the vertical axis through a bearing, and a discharge pipe connected to the receiving trough body is provided at one end of the bottom of the receiving trough body, and the discharge pipe extends to the outside of the secondary cylinder away from one end of the receiving trough body.

[0017] Preferably, a base is provided at the bottom of the frame, a bracket is provided at one end of the top of the base, weighing slots for holding powder particles are provided on the side of the bracket and the top of the base, and the weighing slot located in the middle of the top of the base corresponds to directly below the outer shell assembly, the weighing slots located on the bracket correspond one-to-one to the row pipes, and an electronic scale is provided in the weighing slot.

[0018] Preferably, a retaining ring is provided between the screen and the receiving tank body, and the retaining ring corresponds to the bottom outer edge of the screen, a first connecting frame is fixedly provided on the inner side of the retaining ring, and the middle part of the first connecting frame is fixedly connected to the side wall of the vertical shaft, so that the retaining ring is driven to rotate synchronously when the vertical shaft rotates, and a scraper is fixedly provided on one side of the retaining ring, which slides with the inner wall of the receiving tank body and is used to scrape the powder particles on the inner side of the receiving tank body.

[0019] Preferably, a vibration assembly is arranged between the base and the shell assembly, and the vibration assembly includes a support base vertically movably arranged on the top of the base, a frame is fixed on the top of the support base, a vibration spring is vertically arranged between the support base and the base, and a vertical vibration motor is fixedly arranged at the bottom of the support base.

[0020] Preferably, the vertical axis is a hollow structure;

[0021] The cam is an angularly shaped member which is adapted to move the cam forward along the axis of the wheel shaft, the cam being arranged on a circle which is adapted to move the cam forward along the axis of the wheel shaft, the cam being arranged on a circle which is adapted to move the cam forward along the axis of the wheel shaft. The side surfaces are flush, and one end of the rack close to the vertical shaft is fixedly provided with a force-bearing head corresponding to the connecting head, and one end of the force-bearing head away from the rack extends to the outside of the connecting head, and the force-bearing head is slidably connected to the rotating plate and the connecting head, and the side wall of the vertical shaft is radially slidably interspersed with a push rod corresponding to the driving wheel and the force-bearing head; one end of the push rod close to the driving wheel is rotatably connected to a pair of rollers, and the pair of rollers are vertically arranged, and the pair of rollers are respectively located on the inner and outer sides of the outer flange of the driving wheel, so that when the driving wheel rotates, the push rod is driven by the roller to move back and forth along the radial direction of the vertical shaft, and then the push rod promotes the overall displacement of the force-bearing head and the rack, and the top of the inner shaft is fixedly provided with a first bevel gear meshing with the end of the end face gear away from the second bevel gear, thereby realizing the rotation of the inner shaft.

[0022] Preferably, a side surface of the force-bearing head close to one end of the push rod is provided with an avoidance groove adapted to the push rod, and the avoidance groove is configured to correspond exactly to the end of the push rod when the rotating plate is horizontally tilted to a limit angle.

[0023] Compared with the prior art, the present invention provides a powder coating particle uniformity detection device, which has the following beneficial effects:

[0024] 1. The powder coating particle uniformity detection equipment can realize efficient screening detection and reduce blockage through the specially designed shell component, screening component and adjustment component, and can quickly discharge the powder particles on the top of multiple screens after screening, without manual removal and cleaning, thereby improving efficiency. The rotating plate scrapes the powder particles during screening to reduce blockage, and tilts after screening to realize the discharge of powder particles. The structure is compact, which increases convenience and facilitates improving detection efficiency. The receiving trough is convenient for receiving powder particles during discharge. The retaining ring can block the area between the screen and the receiving trough to prevent powder particles from entering the receiving trough during screening, and also prevent powder particles from falling from the screen and the receiving trough to the screen below during discharge. The scraper, discharge pipe and weighing trough can quickly discharge the powder particles and perform weighing detection, thereby further improving efficiency. The setting of the vibration component can provide the longitudinal vibration force of the device, which is convenient for providing screening effect.

[0025] 2. The setting of the stirring component of the powder coating particle uniformity detection equipment can further improve the scraping effect of the rotating plate on the screen, so that the powder particles can be continuously pushed, stirred and loosened, avoiding the powder particles from piling up on the screen into a dense state and hindering the screening process, thereby improving the consistency and uniformity of the screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0028] Figure 3 It is a specific structural schematic diagram of the present invention highlighting the motor and hydraulic cylinder parts;

[0029] Figure 4 is a schematic cross-sectional structure diagram of a housing assembly of the present invention;

[0030] Figure 5 It is a schematic diagram of the overall structure of the screen, vertical shaft, receiving tank body and retaining ring of the present invention;

[0031] Figure 6 The present invention Figure 5 A structural diagram from another perspective based on the above;

[0032] Figure 7 It is a schematic diagram of the structure of one of the retaining rings, the receiving tank body and the vertical shaft of the present invention in a disassembled state;

[0033] Figure 8 It is a schematic diagram of the partial cross-sectional structure of the connection between the screen and the vertical shaft of the present invention;

[0034] Fig. 9 It is a schematic diagram of the structure of the rotating plate and the driving wheel of the present invention in a matching state;

[0035] Fig.10 It is a schematic diagram of the structure of the roller and the driving wheel of the present invention in a matching state;

[0036] Fig.11 It is a schematic structural diagram of the present invention highlighting one end of the rotating plate close to the vertical axis;

[0037] Fig.12 It is a schematic diagram of the exploded structure of the rotating plate of the present invention;

[0038] Fig.13 It is a schematic diagram of the structure of the present invention when a plurality of scrapers are flush with the side surface of the rotating plate;

[0039] Fig.14 is a schematic diagram of the internal structure of the housing assembly of the present invention;

[0040] Fig.15 It is a schematic diagram of the overall structure of the third connecting frame and the driving cylinder of the present invention;

[0041] Fig.16 It is a schematic diagram of the structure of the drive cylinder and the rotating shaft of the present invention in a disassembled state;

[0042] Fig.17 The present invention Fig.16 A structural diagram from another perspective based on the above;

[0043] Fig.18 It is a schematic diagram of the structure of the rotating plate of the present invention when it cooperates with the screen in an inclined state;

[0044] Fig.19 It is a schematic diagram of the structure of the support seat and the base of the present invention when they are disassembled.

[0045] In the figure: 1, detection cylinder; 2, base; 3, auxiliary cylinder; 4, conical cylinder; 5, frame; 6, support seat; 7, weighing tank; 8, bracket; 9, motor; 10, hydraulic cylinder; 11, vertical shaft; 12, inner shaft; 13, first bevel gear; 14, end gear; 15, second bevel gear; 16, screen; 17, rotating plate; 18, row pipe; 19, receiving tank; 20, retaining ring; 21, scraper; 22, first connecting frame; 23 , second connecting frame; 24, driving wheel; 25, scraper; 26, rotating shaft; 27, push rod; 28, roller; 29, connecting support; 30, connecting head; 31, force head; 32, rack; 33, spur gear; 34, return spring; 35, avoidance groove; 36, third connecting frame; 37, driving cylinder; 38, swivel; 39, guide groove; 40, guide block; 41, vibration spring; 42, support rod; 43, vertical vibration motor. DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0047] like Figure 1-Figure 8 , Fig.14 As shown, a powder coating particle uniformity detection device includes a housing component and a screening component arranged in the housing component;

[0048] The shell assembly is closed at the top and open at the bottom, and a feed port is provided at the top. Specifically, the shell assembly includes a plurality of detection cylinders 1 distributed along the vertical direction, and a secondary cylinder 3 having an inner diameter larger than that of the detection cylinder 1 is provided between adjacent detection cylinders 1. The top and bottom of the secondary cylinder 3 are connected to the detection cylinder 1 as a whole through a conical cylinder 4, and the detection cylinder 1 is located at the uppermost end of the shell assembly, and the conical cylinder 4 is located at the lowermost end;

[0049] The screening component includes a vertical shaft 11 which is arranged in the middle of the inner side of the shell component and is vertically arranged. The upper and lower ends of the vertical shaft 11 extend to the outside of the shell component, and the upper end of the vertical shaft 11 is movably connected to the top of the shell component. A horizontal screen 16 is arranged on the inner side of the detection cylinder 1. The edge of the screen 16 is slidably connected to the inner wall of the detection cylinder 1, and the sliding direction is the vertical direction. The specific sliding structure is to slide the edge of the screen 16 and the inner wall of the detection cylinder 1 in a key connection manner to ensure that the screen 16 will not rotate with the rotation of the vertical shaft 11, and can only be displaced longitudinally relative to the shell component, and the apertures of the multiple screens 16 decrease from top to bottom, and the middle of the screen 16 rotates with the vertical shaft 11 through a bearing. A rotating plate 17 for scraping powder particles is arranged at the corresponding position of the side wall of the vertical shaft 11 and the top of the screen 16, and the rotating plate 17 is arranged along the radial direction of the vertical shaft 11. A driving structure for driving the vertical shaft 11 to rotate is arranged on the top of the shell assembly. The shell assembly is arranged on the inner side of the frame-shaped frame 5. The upper and lower ends of the vertical shaft 11 are respectively rotatably connected to the upper and lower ends of the frame 5. The driving structure includes a motor 9 arranged at one end of the top of the frame 5. The output end of the motor 9 is provided with an end gear 14 driven to rotate by the motor 9. A second bevel gear 15 meshing with the end gear 14 is fixedly arranged on the outer side of the upper end of the vertical shaft 11, so that the motor 9 drives the vertical shaft 11 to rotate through the end gear 14 and the second bevel gear 15.

[0050] like Figure 3-Figure 5 , Figure 8-Figure 18 As shown, it also includes an adjustment component for adjusting the horizontal inclination of the rotating plate 17 and the height of the housing component. The adjustment component is fixedly arranged on the connecting support 29 at the side wall of the vertical axis 11 corresponding to the rotating plate 17. A connecting head 30 is arranged on the side of the rotating plate 17 close to the connecting support 29. A rotating shaft 26 is vertically arranged on the connecting head 30, and the rotating shaft 26 is rotatably connected to the connecting support 29. The upper end of the rotating shaft 26 extends upward to the top of the connecting support 29, and a spiral guide groove 39 is arranged on the upper end side of the rotating shaft 26. A third connecting frame 36 is fixedly arranged on the inner wall of the detection tube 1. A rotating ring 38 whose axis coincides with the axis of the vertical axis 11 is rotatably connected to the middle bottom of the third connecting frame 36. The middle part of the three-connecting frame 36 is an annular structure, and the annular structure is located outside the vertical shaft 11. The inner diameter of the annular structure is larger than the diameter of the vertical shaft 11. The swivel 38 is rotatably arranged at the bottom of the annular structure. A driving cylinder 37 corresponding to the rotating shaft 26 is vertically arranged at the bottom of the swivel 38, and the driving cylinder 37 is movably connected to the outer side of the upper end of the rotating shaft 26. An arc-shaped guide block 40 is fixedly arranged on the inner wall of the driving cylinder 37, and the guide block 40 is slidably guided with the guide groove 39, so that the horizontal inclination of the rotating plate 17 changes when the guide block 40 is longitudinally displaced. A hydraulic cylinder 10 for driving the longitudinal displacement of the housing assembly is arranged on the top of the housing assembly, and the hydraulic cylinder 10 is fixed to the top of the frame 5.

[0051] In order to facilitate receiving and detection, an annular receiving groove 19 is provided on the inner side of the auxiliary tube 3, and the inner circle of the receiving groove 19 corresponds to the outer edge of the screen 16, and the receiving groove 19 is slidably connected to the inner wall of the auxiliary tube 3, and the sliding direction is displaced in the vertical direction. The specific sliding structure is to slide the edge of the receiving groove 19 and the inner wall of the detection tube 1 in a key connection manner to ensure that the receiving groove 19 will not rotate with the rotation of the vertical shaft 11, and can only be displaced longitudinally relative to the shell assembly. A second connecting frame 23 is provided on the inner side of the receiving groove 19, and the middle part of the second connecting frame 23 is rotatably connected to the vertical shaft 11 through a bearing. One end of the bottom of the receiving groove 19 is provided with a discharge pipe 18 connected to the receiving groove 19, and One end of the row pipe 18 away from the receiving tank body 19 extends to the outside of the secondary cylinder 3. A vertical through slot is provided at the side of the secondary cylinder 3 corresponding to the row pipe 18. The row pipe 18 extends outward through the through slot. The through slot can adapt to the longitudinal displacement of the shell assembly, and a retractable protective cover can be provided between the through slot and the row pipe 18 to prevent powder from overflowing. A base 2 is provided at the bottom of the frame 5, and a bracket 8 is provided at one end of the top of the base 2. A weighing slot 7 for holding powder particles is provided on the side of the bracket 8 and on the top of the base 2, and the weighing slot 7 located in the middle of the top of the base 2 corresponds to the bottom of the shell assembly. The weighing slot 7 located on the bracket 8 corresponds to the row pipe 18 one by one, and an electronic scale is provided in the weighing slot 7;

[0052] Furthermore, a retaining ring 20 is provided between the screen 16 and the receiving trough body 19, and the retaining ring 20 corresponds to the bottom outer edge of the screen 16, a first connecting frame 22 is fixedly provided on the inner side of the retaining ring 20, and the middle part of the first connecting frame 22 is fixedly connected to the side wall of the vertical shaft 11, so that when the vertical shaft 11 rotates, the retaining ring 20 is driven to rotate synchronously, and a scraper 21 that slides with the inner wall of the receiving trough body 19 and is used to scrape the powder particles inside the receiving trough body 19 is fixedly provided on one side of the retaining ring 20.

[0053] like Figure 1-Figure 2 , Fig.19 As shown, a vibration assembly is arranged between the base 2 and the shell assembly, and the vibration assembly includes a support base 6 vertically movably arranged on the top of the base 2. The specific vertical movable connection is to movably connect the support base 6 to a guide structure vertically fixed on the top of the base 2. The guide structure is preferably a guide column. The frame 5 is fixed on the top of the support base 6. A vibration spring 41 is vertically arranged between the support base 6 and the base 2, and a vertical vibration motor 43 is fixedly arranged at the bottom of the support base 6.

[0054] Furthermore, a longitudinally retractable support rod 42 is vertically arranged between the top of the support seat 6 and the bottom wall of the lowest conical cylinder 4. The support rod 42 is used to support and guide the outer shell assembly, thereby increasing stability. A notch adapted to the weighing slot 7 is arranged at one end of the support seat 6 to facilitate the taking and placing of the weighing slot 7.

[0055] like Figure 1-Figure 2 , Figure 4-Figure 7 , Fig.19 As shown, a stirring assembly is also provided. The vertical shaft 11 is a hollow structure. The stirring assembly includes an inner shaft 12 which is vertically arranged on the inner side of the vertical shaft 11 and is rotatably connected to the inner wall of the vertical shaft 11 through a bearing. A driving wheel 24 corresponding to the rotating plate 17 is fixedly provided on the inner shaft 12, and the driving wheel 24 is elliptical, and a flange protruding upward is provided on the top periphery of the driving wheel 24. The inner side of the upper end of the rotating plate 17 is a hollow structure, and the inner side of the upper end of the rotating plate 17 is slidably connected to a rack 32 along the length direction of the rotating plate 17. The bottom is evenly rotated and connected with a scraper 25 in contact with the top of the screen 16. A spur gear 33 extending to the inner side of the upper end of the rotating plate 17 and meshing with the rack 32 is fixedly arranged on the top of the scraper 25. A return spring 34 is arranged between the end of the rack 32 away from the vertical shaft 11 and the inner wall of the end of the upper end of the rotating plate 17. When the return spring 34 is in the initial state, the side surfaces of the multiple scrapers 25 at the bottom of the rotating plate 17 are flush with the side surfaces of the rotating plate 17. The end of the rack 32 close to the vertical shaft 11 is fixedly provided with a force head 30 corresponding to the connecting head 30. 1, and the end of the force-bearing head 31 away from the rack 32 extends to the outside of the connecting head 30, and the force-bearing head 31 is slidably connected to the rotating plate 17 and the connecting head 30, and the side wall of the vertical shaft 11 is inserted with a push rod 27 corresponding to the driving wheel 24 and the force-bearing head 31 along the radial direction of the vertical shaft 11, and the end of the push rod 27 close to the driving wheel 24 is rotatably connected to a pair of rollers 28, and the pair of rollers 28 are vertically arranged, and the pair of rollers 28 are respectively located on the inner and outer sides of the outer flange of the driving wheel 24, so that when the driving wheel 24 rotates, The roller 28 drives the push rod 27 to move back and forth along the radial direction of the vertical axis 11, and then the push rod 27 promotes the overall displacement of the force-bearing head 31 and the rack 32. The top of the inner shaft 12 is fixedly provided with a first bevel gear 13 that meshes with the end face gear 14 away from the second bevel gear 15, thereby realizing the rotation of the inner shaft 12. The side surface of the force-bearing head 31 close to one end of the push rod 27 is provided with an avoidance groove 35 adapted to the push rod 27, and the avoidance groove 35 is configured to correspond to the end of the push rod 27 when the rotating plate 17 is horizontally tilted to the extreme angle.

[0056] Working principle: when in use, the powder particles to be detected are added from the top of the detection tube 1 to the inside of the shell assembly, and the powder particles fall into the top of the uppermost screen 16, and the motor 9 and the vertical vibration motor 43 are controlled. The vertical vibration motor 43 will drive the overall vibration of the shell assembly and the screening assembly under the action of the support seat 6 and the vibration spring 41, so as to perform screening. During this period, the motor 9 drives the inner shaft 12 and the vertical shaft 11 to rotate respectively through the end face gear 14 through the first bevel gear 13 and the second bevel gear 15, the vertical shaft 11 drives the rotating plate 17 to rotate, the inner shaft 12 drives the driving wheel 24 to rotate, and the driving wheel 24 drives the push rod 27 to move back and forth through the roller 28, and then the push rod 27 continuously pushes the force-bearing head 31, and the force-bearing head 31 drives the rack 32 The rack 32 continuously drives the scraper 25 to rotate back and forth through the spur gear 33, and the rotating plate 17 rotates around the vertical axis 11 while the scraper 25 rotates to scrape the powder particles on the top of the screen 16, thereby improving the screening effect and avoiding blockage and accumulation. The powder particles screened by the bottom screen 16 fall into the weighing slot 7 on the top of the base 2 for weighing, and the powder particles on multiple screens 16 are waiting to be discharged. Specifically, when it is necessary to discharge the weighing measurement, the hydraulic cylinder 10 is controlled to drive the entire shell assembly to move upward, and then the shell assembly drives the driving cylinder 37 to move upward through the third connecting frame 36 and the rotating ring 38. Under the action of the guide block 40 and the guide slot 39, the third connecting frame 36 drives the rotating plate through the connecting head 30 17 rotates, causing the rotating plate 17 to tilt. At this time, the extension line of the rotating plate 17 does not pass through the axis of the vertical shaft 11, and the force head 31 and the push rod 27 are in a staggered state, and the end of the rotating plate 17 corresponds to the avoidance groove 35. The reset spring 34 is in the initial state, and the side of the scraper 25 is flush with the side of the rotating plate 17. Due to the upward movement of the shell assembly, the outer edge of the screen 16 corresponds to the part of the conical cylinder 4 at this time, so that a gap is formed between the outer edge of the screen 16 and the inner wall of the conical cylinder 4. Then, the vertical shaft 11 is continued to be controlled to rotate, and the inner shaft 12 will also rotate. However, when the push rod 27 moves back and forth, it will enter the avoidance groove 35 and will not push the rack 32 to move. Moreover, the screen 16 and the receiving tank body 19 always remain stationary, and the retaining ring 20 will be driven to rotate by the vertical shaft 11. The plate 17 drives the scraper 25 to scrape the powder particles on the top of the screen 16. The powder particles will gradually be scraped down along the inclined surfaces of the rotating plate 17 and the scraper 25, and fall into the receiving tank 19 from the gap between the conical cylinder 4 and the screen 16. Since the rotation of the retaining ring 20 will drive the scraper 21 to rotate, the scraper 21 continuously scrapes the powder particles inside the receiving tank 19. The powder particles are gradually discharged from the rotating plate 17 to the weighing tank 7 on the bracket 8 for weighing. The particle distribution is calculated according to the proportion of the powder mass in different particle size ranges to the total mass, thereby judging the uniformity. For example, if the powder mass distribution in each particle size range is relatively concentrated, it means that the uniformity is good, otherwise the uniformity is poor. The specific calculation method adopts the conventional method and will not be described in detail.

[0057] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A powder coating particle uniformity detection device, characterized in that: It includes a housing component and a screening component arranged in the housing component; The housing assembly comprises a plurality of detection cylinders (1) distributed along a vertical direction, a secondary cylinder (3) having an inner diameter greater than the inner diameter of the detection cylinder (1) is arranged between adjacent detection cylinders (1), and the top and bottom of the secondary cylinder (3) are connected to the detection cylinder (1) as a whole via a conical cylinder (4); The screening component comprises a vertical shaft (11) which is arranged in the middle of the inner side of the housing component and is arranged vertically; a horizontal screen (16) is movably arranged inside the detection cylinder (1), and the middle of the screen (16) is rotatably connected to the vertical shaft (11); a rotating plate (17) for scraping powder particles is arranged at the corresponding position of the side wall of the vertical shaft (11) and the top of the screen (16), and the rotating plate (17) is arranged along the radial direction of the vertical shaft (11); and a driving structure for driving the vertical shaft (11) to rotate is arranged at the top of the housing component; The detection tube (1) further comprises an adjustment component for adjusting the horizontal inclination of the rotating plate (17) and the height of the housing component, wherein the adjustment component is fixedly arranged on a connecting support (29) at a position corresponding to the side wall of the vertical axis (11) and the rotating plate (17), a connecting head (30) is arranged on one side of the rotating plate (17) close to the connecting support (29), a rotating shaft (26) is vertically arranged on the connecting head (30), and the rotating shaft (26) is rotatably connected to the connecting support (29), the upper end of the rotating shaft (26) extends upward to the top of the connecting support (29), and a spiral guide groove (39) is arranged on the side surface of the upper end of the rotating shaft (26), and a third connecting rod (39) is fixedly arranged on the inner wall of the detection tube (1) The third connecting frame (36) is rotatably connected to a rotating ring (38) at the bottom of the middle part of the third connecting frame (36), the axis of which coincides with the axis of the vertical axis (11). A driving cylinder (37) corresponding to the rotating shaft (26) is vertically arranged at the bottom of the rotating ring (38), and the driving cylinder (37) is movably connected to the outer side of the upper end of the rotating shaft (26). An arc-shaped guide block (40) is fixedly arranged on the inner wall of the driving cylinder (37), and the guide block (40) and the guide groove (39) are slidably guided and matched, so that when the guide block (40) is longitudinally displaced, the horizontal inclination of the rotating plate (17) changes. A hydraulic cylinder (10) for driving the longitudinal displacement of the housing assembly is arranged at the top of the housing assembly.

2. A powder coating particle uniformity detection device according to claim 1, characterized in that: The edge of the screen (16) is slidably connected to the inner wall of the detection cylinder (1), and the sliding direction is a vertical direction. The apertures of the plurality of screens (16) decrease in sequence from top to bottom.

3. The powder coating particle uniformity detection device according to claim 1, characterized in that: The housing assembly is arranged inside a frame-shaped frame (5), and the upper and lower ends of the vertical shaft (11) are rotatably connected to the upper and lower ends of the frame (5) respectively; The driving structure comprises a motor (9) arranged at one end of the top of the frame (5); an end face gear (14) driven to rotate by the motor (9) is arranged at the output end of the motor (9); a second bevel gear (15) meshing with the end face gear (14) is fixedly arranged on the outer side of the upper end of the vertical shaft (11), so that the motor (9) drives the vertical shaft (11) to rotate through the end face gear (14) and the second bevel gear (15); The hydraulic cylinder (10) is fixed to the top of the frame (5).

4. The powder coating particle uniformity detection device according to claim 1, characterized in that: The middle part of the third connecting frame (36) is an annular structure, and the annular structure is located outside the vertical shaft (11). The inner diameter of the annular structure is larger than the diameter of the vertical shaft (11), and the rotating ring (38) is rotatably arranged at the bottom of the annular structure.

5. The powder coating particle uniformity detection device according to claim 1, characterized in that: An annular receiving trough body (19) is arranged inside the secondary cylinder (3), and the inner ring of the receiving trough body (19) corresponds to the outer edge of the screen (16), and the receiving trough body (19) is slidably connected to the inner wall of the secondary cylinder (3), and the sliding direction is vertically displaced. A second connecting frame (23) is arranged inside the receiving trough body (19), and the middle part of the second connecting frame (23) is rotatably connected to the vertical axis (11) through a bearing. A discharge pipe (18) connected to the receiving trough body (19) is arranged at one end of the bottom of the receiving trough body (19), and the discharge pipe (18) extends to the outside of the secondary cylinder (3) away from the end of the receiving trough body (19).

6. A powder coating particle uniformity detection device according to claim 5, characterized in that: A base (2) is provided at the bottom of the frame (5), a bracket (8) is provided at one end of the top of the base (2), and weighing grooves (7) for holding powder particles are provided on the side of the bracket (8) and the top of the base (2), and the weighing groove (7) located in the middle of the top of the base (2) corresponds to the bottom of the housing component, and the weighing grooves (7) located on the bracket (8) correspond to the row pipes (18) one by one, and an electronic scale is provided in the weighing groove (7).

7. The powder coating particle uniformity detection device according to claim 5, characterized in that: A retaining ring (20) is arranged between the screen (16) and the receiving tank body (19), and the retaining ring (20) corresponds to the bottom outer edge of the screen (16). A first connecting frame (22) is fixedly arranged on the inner side of the retaining ring (20), and the middle part of the first connecting frame (22) is fixedly connected to the side wall of the vertical shaft (11), so that when the vertical shaft (11) rotates, the retaining ring (20) is driven to rotate synchronously. A scraper (21) is fixedly arranged on one side of the retaining ring (20) for slidingly cooperating with the inner wall of the receiving tank body (19) and for scraping powder particles inside the receiving tank body (19).

8. The powder coating particle uniformity detection device according to claim 6, characterized in that: A vibration component is arranged between the base (2) and the shell component, and the vibration component comprises a support base (6) vertically movably arranged on the top of the base (2), a frame (5) is fixed on the top of the support base (6), a vibration spring (41) is vertically arranged between the support base (6) and the base (2), and a vertical vibration motor (43) is fixedly arranged at the bottom of the support base (6).

9. The powder coating particle uniformity detection device according to claim 1, characterized in that: The vertical shaft (11) is a hollow structure; The invention also comprises a stirring assembly, wherein the stirring assembly comprises an inner shaft (12) vertically arranged on the inner side of the vertical shaft (11) and rotatably connected to the inner wall of the vertical shaft (11) via a bearing, a driving wheel (24) corresponding to the rotating plate (17) is fixedly arranged on the upper side of the inner shaft (12), and the driving wheel (24) is elliptical, and a flange protruding upward is arranged on the outer periphery of the top of the driving wheel (24), the inner side of the upper end of the rotating plate (17) is a hollow structure, and the inner side of the upper end of the rotating plate (17) is slidably connected to a rack (32) along the length direction of the rotating plate (17), The bottom of the rotating plate (17) is evenly connected to a scraper (25) in contact with the top of the screen (16), and a spur gear (33) is fixedly arranged on the top of the scraper (25) and extends to the inner side of the upper end of the rotating plate (17) and meshes with the rack (32). A return spring (34) is arranged between the end of the rack (32) away from the vertical axis (11) and the inner wall of the end of the upper end of the rotating plate (17), and when the return spring (34) is in the initial state, the side surfaces of the plurality of scrapers (25) at the bottom of the rotating plate (17) are flush with the side surfaces of the rotating plate (17), and the rack (3 2) A force-bearing head (31) corresponding to the connecting head (30) is fixedly arranged at one end close to the vertical shaft (11), and one end of the force-bearing head (31) away from the rack (32) extends to the outside of the connecting head (30), and the force-bearing head (31) is slidably connected to the rotating plate (17) and the connecting head (30), and a push rod (27) corresponding to the driving wheel (24) and the force-bearing head (31) is inserted through the side wall of the vertical shaft (11) in a radially sliding manner along the vertical shaft (11), and one end of the push rod (27) close to the driving wheel (24) is rotatably connected to a pair of rollers (28) , and the pair of rollers (28) are vertically arranged, and the pair of rollers (28) are respectively located on the inner and outer sides of the outer flange of the driving wheel (24), so that when the driving wheel (24) rotates, the rollers (28) drive the push rod (27) to move back and forth along the radial direction of the vertical axis (11), and then the push rod (27) pushes the force-bearing head (31) and the rack (32) to move as a whole, and the top of the inner shaft (12) is fixedly provided with a first bevel gear (13) meshing with the end of the end gear (14) away from the second bevel gear (15), so as to realize the rotation of the inner shaft (12).

10. The powder coating particle uniformity detection device according to claim 9, characterized in that: A side surface of the force-bearing head (31) close to one end of the push rod (27) is provided with an avoidance groove (35) adapted to the push rod (27), and the avoidance groove (35) is configured to correspond to the end of the push rod (27) when the rotating plate (17) is horizontally tilted to a limit angle.

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