Dip-coating and spin-drying integrated centrifugal machine

Abstract

Supporting legs are installed below a bottom plate, an installation sleeve is fixedly installed below the bottom plate, a driving main shaft is installed in the installation sleeve in a rotating mode, the driving main shaft penetrates through the bottom plate and extends upwards, the driving main shaft is driven by a centrifugal driving device to rotate, and a rotary drum base is fixedly installed on the driving main shaft. A sealing structure is arranged on the portion, between the rotary drum base and the bottom plate, of the driving main shaft, the rotary drum base is sleeved with a storage box, an opening is formed in the storage box, hollowed-out holes are formed in the side wall and the bottom of the storage box, a shell is fixedly installed on the bottom plate, the shell and the bottom plate are fixed in a sealed mode, the rotary drum base is located in the shell, and dip-coating liquid is stored in the shell. An extrusion device for extruding the dip-coating liquid to lift the liquid level of the dip-coating liquid is arranged in the shell, and a cover plate capable of being opened and closed is arranged on the shell; the centrifugal machine can dip-coat and centrifugally spin-dry a workpiece at the same time, the difficulty of an installation structure is reduced, and the use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating processing, in particular to a dipping, coating and drying integrated centrifuge. Background Art

[0002] In order to make the workpiece have higher corrosion resistance and good appearance, the surface of the workpiece after processing needs to be dipped in Dacromet and baked to form a coating attached to the surface of the workpiece.

[0003] Patent No. 201811004367.5 discloses a dip-coating centrifugal integrated machine for Dacromet treatment, which includes a base, a first frame, a second frame, a liquid storage box, a material storage box, a centrifugal mechanism, a lifting mechanism and a feeding mechanism. The material storage box is a mesh structure, the liquid storage box is connected to the lifting mechanism, the material storage box is connected to the centrifugal mechanism, the liquid storage box is arranged inside the first frame, the material storage box is arranged inside the liquid storage box, the centrifugal mechanism is arranged inside the second frame, the first frame is welded on the top of the second frame, and the second frame and the feeding mechanism are both connected to the top of the base; the liquid storage box is raised by the lifting mechanism so that the paint in the liquid storage box can cover the material storage box, the workpiece in the material storage box is dipped, and then the liquid storage box is lowered, and the centrifugal mechanism controls the reciprocating rotation of the material storage box. The dip-coating centrifugal integrated machine has the following disadvantages when in use:

[0004] 1. After the material storage box is put on the top sleeve, the screw and the threaded hole need to cooperate to prevent the material storage box from shaking. The material storage box needs to be taken down frequently to replace the workpieces dipped and dried inside, so the material storage box needs to be disassembled by thread, which affects the processing efficiency;

[0005] 2. When the workpieces in the storage box are dried, the storage box is rotated back and forth, and the centrifugal mechanism is driven by a number of bevel gears, the transmission structure is complicated, affecting the manufacturing cost and unreasonable use;

[0006] 3. In the centrifugal mechanism, a driving member is fixedly mounted on the first bevel gear, and the driving member is slidably connected to the slide groove on the second slider. The article does not describe in detail how to convert the circular motion of the driving member on the first bevel gear into the linear motion of the second slider. The transmission cannot be achieved, which affects the subsequent use. Utility Model Content

[0007] The technical problem to be solved by the utility model is: a centrifuge integrated with dipping and drying, which can simultaneously perform dipping and centrifugal drying on workpieces, reduce the difficulty of the installation structure, and improve the convenience of use.

[0008] In order to solve the above technical problems, the technical scheme of the utility model is: a dipping and drying integrated centrifuge, comprising a bottom plate, a supporting foot is installed under the bottom plate, a mounting sleeve is fixedly installed under the bottom plate, a driving spindle is rotatably installed in the mounting sleeve, the driving spindle penetrates the bottom plate and extends upward, the driving spindle is driven to rotate by a centrifugal driving device, a drum base is fixedly installed on the driving spindle, a sealing structure is provided on the driving spindle between the drum base and the bottom plate, a storage box is sleeved on the drum base, an opening is provided on the storage box, and hollow holes are provided on the side wall and the bottom of the storage box, a shell is fixedly installed on the bottom plate, the shell is sealed and fixed to the bottom plate, the drum base is in the shell, a dipping liquid is stored in the shell, an extrusion device for squeezing the dipping liquid to raise and lower the liquid level of the dipping liquid is provided in the shell, the lowest point of the liquid level of the dipping liquid is located below the drum base, and the highest point of the liquid level of the dipping liquid submerges the workpiece in the storage box, and an openable and closable cover is provided on the shell.

[0009] As a preferred solution, the drum base includes a rotating plate fixedly mounted on the driving main shaft and an annular protrusion fixedly mounted on the rotating plate, a plurality of leakage holes are opened on the circumference of the rotating plate for facilitating the coating liquid to pass through the rotating plate into the material storage box, a receiving groove is provided at the bottom of the material storage box for snap-fitting with the annular protrusion, the rotating plate supports the bottom of the material storage box, and an inner eaves extending toward the axis of the driving main shaft is provided at the opening of the material storage box.

[0010] As a preferred solution, the extrusion device includes an extrusion gravity ring vertically lifted and installed in the shell, the extrusion gravity ring is driven to lift and lower by a lifting power device, and the inner hole size of the extrusion gravity ring is larger than the size of the storage box.

[0011] As a preferred solution, the extrusion device includes an airbag fixedly mounted on a base plate, a gravity plate mounted on the airbag, the cross-section of the gravity plate being step-shaped, the gravity plate forming a receiving cavity for receiving the dipping liquid, an air pipe connected to the airbag, the air pipe passing through an outer shell and connected to a positive and negative pressure system, an air pipe connected to the airbag, the air pipe passing through an outer shell and connected to a positive and negative pressure system, and the gravity plate rises and falls to extrude the dipping liquid as the airbag expands and contracts.

[0012] As a preferred solution, a rotating bearing is installed on the driving main shaft, and the driving main shaft is rotatably installed in the mounting sleeve through the rotating bearing. Limiting end plates for limiting the rotating bearing are fixedly installed at both ends of the mounting sleeve; a main shaft sealing ring is also provided between the limiting end plate and the driving main shaft.

[0013] As a preferred solution, the sealing structure includes a sealing sleeve installed on the driving main shaft, and a rotating sealing ring cooperating with the driving main shaft is provided in the sealing sleeve.

[0014] As a preferred solution, the centrifugal drive device includes a centrifugal motor fixedly mounted on a base plate, a driving pulley is rotatably mounted on the output shaft of the centrifugal motor, a driven pulley is rotatably mounted on the lower end of the driving main shaft, and the driving pulley and the driven pulley are driven by a V-belt.

[0015] As a preferred solution, the lifting power device includes a lifting cylinder, which is fixedly installed under the base plate. The lifting cylinder guide rod passes through the base plate and is connected to the extrusion gravity ring. A lifting sealing ring is provided in the base plate to seal the guide rod when it is lifted or lowered.

[0016] As a preferred solution, the upper end of the annular protrusion is provided with a guiding cone surface that cooperates with the accommodating groove for guiding, and the upper end of the annular protrusion is also provided with a sealing bin cover that seals the annular protrusion, and a drum sealing ring is provided between the annular protrusion and the sealing bin cover.

[0017] As a preferred solution, the cover plate and the shell are hingedly connected, and the cover plate is also provided with a viewing mirror for observing the interior of the shell.

[0018] After adopting the above technical scheme, the effect of the utility model is as follows: since the dip-coating and drying integrated centrifuge includes a bottom plate, a supporting foot is installed under the bottom plate, a mounting sleeve is fixedly installed under the bottom plate, a driving spindle is rotatably installed in the mounting sleeve, the driving spindle penetrates the bottom plate and extends upward, the driving spindle is driven to rotate by a centrifugal driving device, a drum base is fixedly installed on the driving spindle, a sealing structure is provided on the driving spindle between the drum base and the bottom plate, a material storage box is sleeved on the drum base, the material storage box is provided with an opening, the side wall and the bottom of the material storage box are provided with hollow holes, an outer shell is fixedly installed on the bottom plate, the outer shell is sealed and fixed to the bottom plate, the drum base is in the outer shell, a dipping liquid is stored in the outer shell, and a sealing structure is provided in the outer shell. The invention discloses an extrusion device for squeezing the coating liquid to raise or lower the coating liquid level. The lowest point of the coating liquid level is located below the drum base, and the highest point of the coating liquid level is above the workpiece in the material storage box. The outer shell is provided with an openable and closable cover plate. First, the cover plate is opened, and the workpiece is placed in the material storage box to ensure that the outer shell contains the coating liquid. Then, the extrusion device squeezes the coating liquid to raise the liquid level above the workpiece in the material storage box. Then, the centrifugal drive device drives the driving spindle to rotate slowly at a uniform speed to make the workpiece dip coated evenly. Then, the driving spindle stops rotating, the extrusion device stops squeezing, the liquid level drops, and the centrifugal drive device drives the driving spindle to rotate centrifugally quickly to spin off the excess coating liquid on the workpiece to complete the centrifugation. The centrifuge can dip and spin off the workpiece at the same time, thereby reducing the difficulty of the installation structure and improving the convenience of use.

[0019] Furthermore, since the drum base includes a rotating plate fixedly mounted on the driving spindle and an annular protrusion fixedly mounted on the rotating plate, a plurality of leakage holes are provided on the circumference of the rotating plate for facilitating the coating liquid to pass through the rotating plate and enter the material storage box, a receiving groove is provided at the bottom of the material storage box for snap-fitting with the annular protrusion, the rotating plate supports the bottom of the material storage box, and an inner eaves extending toward the axis of the driving spindle is provided at the opening of the material storage box; when the liquid level rises, the coating liquid can enter the material storage box from the leakage hole, thereby ensuring accurate and stable coating, and the material storage box is mounted on the drum base, the annular protrusion and the receiving groove can effectively limit the position of the material storage box, thereby ensuring stable installation, and the material storage box contains a workpiece with a certain weight, which has sufficient friction after contacting the rotating plate and is driven to rotate, making disassembly simple and improving practicality.

[0020] Furthermore, since the extrusion device includes an extrusion gravity ring that is vertically lifted and installed in the outer shell, the extrusion gravity ring is driven to lift and lower by a lifting power device, and the inner hole size of the extrusion gravity ring is larger than the size of the storage box; when the extrusion gravity ring descends in the outer shell, it will occupy the space of the dipping liquid on the bottom plate, so that the liquid level of the dipping liquid will rise effectively and immerse the workpiece. The structure is simple and the lifting is stable and reliable.

[0021] Furthermore, since the extrusion device includes an airbag fixedly mounted on the bottom plate, a gravity plate is mounted on the airbag, the extrusion device includes an airbag fixedly mounted on the bottom plate, a gravity plate is mounted on the airbag, the cross-section of the gravity plate is step-shaped, the gravity plate forms a accommodating cavity for accommodating the dipping liquid, an air pipe is connected to the airbag, the air pipe passes through the outer shell and is connected to the positive and negative pressure system, the gravity plate rises and falls to extrude the dipping liquid as the airbag expands and contracts; when the positive and negative pressure system inflates the airbag through the air pipe, the space on the bottom plate is occupied, the liquid level of the dipping liquid rises, the dipping liquid enters the storage box for dipping, and the extrusion is simple and convenient.

[0022] Since a rotating bearing is installed on the driving main shaft, the driving main shaft is rotatably installed in the mounting sleeve through the rotating bearing, and limiting end plates for limiting the rotating bearing are fixedly installed at both ends of the mounting sleeve; a main shaft sealing ring is also provided between the limiting end plate and the driving main shaft; to ensure that the driving main shaft can rotate stably, the limiting end plate can ensure the installation and fixation of the rotating bearing, and improve the sealing of the driving main shaft when it rotates.

[0023] Furthermore, since the sealing structure comprises a sealing sleeve mounted on the driving main shaft, a rotating sealing ring cooperating with the driving main shaft is arranged in the sealing sleeve, thereby preventing the coating liquid from entering the driving main shaft to affect the centrifugal effect and improving the sealing performance.

[0024] Furthermore, since the centrifugal drive device includes a centrifugal motor fixedly mounted on a bottom plate, a driving pulley is rotatably mounted on the output shaft of the centrifugal motor, a driven pulley is rotatably mounted on the lower end of the driving main shaft, and a V-belt is used for transmission between the driving pulley and the driven pulley; by driving the output shaft to rotate by the centrifugal motor, it can be ensured that the driving pulley drives the driven pulley to rotate through the V-belt, and the transmission is stable and reliable, and changes with the change of the output shaft speed.

[0025] Furthermore, since the lifting power device includes a lifting cylinder, the lifting cylinder is fixedly installed under the base plate, the guide rod of the lifting cylinder passes through the base plate and is connected to the extrusion gravity ring, and a lifting sealing ring is provided in the base plate to seal the guide rod when it is lifted or lowered; in this way, the lifting and lowering of the extrusion gravity ring is controlled accurately and stably, and the lifting sealing ring can ensure that the base plate can be effectively sealed when the guide rod of the lifting cylinder is lifted or lowered.

[0026] Since the upper end of the annular protrusion is provided with a guiding cone surface that cooperates with the accommodating groove for guiding, the upper end of the annular protrusion is also provided with a sealing bin cover that seals the annular protrusion, and a drum sealing ring is provided between the annular protrusion and the sealing bin cover; the guiding cone surface facilitates the installation of the storage box, and the storage box is provided with a hollow hole. Sealing the sealing bin cover on the annular protrusion can ensure that the dipping liquid in the shell will not enter the annular protrusion, thereby improving the sealing performance.

[0027] Since the cover plate and the shell are hingedly connected, a viewing mirror for observing the interior of the shell is also provided on the cover plate; it is convenient to open the cover plate, place the storage box and perform maintenance and inspection on the interior; when the cover plate is closed, the viewing mirror can be used to conveniently observe whether the internal operation is accurate, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the structure of the reset state of the extruded gravity ring in the embodiment of the utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model when the gravity ring is squeezed to squeeze the dipping liquid;

[0031] Figure 3 This is a schematic diagram of the structure of the airbag when it is deflated in the embodiment of the utility model.

[0032] Figure 4 This is a schematic diagram of the structure of the drum base and the material storage box in the embodiment of the utility model;

[0033] Figure 5 yes Figure 1 A local enlarged view at point A;

[0034] In the attached drawings: 1. bottom plate; 2. supporting feet; 3. mounting sleeve; 4. driving spindle; 5. drum base; 6. storage box; 7. opening; 8. hollow hole; 9. outer shell; 10. dipping liquid; 11. rotating plate; 12. circular protrusion; 13. leakage hole; 14. accommodating groove; 15. inner eaves; 16. extrusion gravity ring; 17. air bag; 18. gravity plate; 19. air pipe; 20. screw; 21. rotating bearing; 22. limiting end plate; 23. spindle sealing ring; 24. sealing sleeve; 25. rotating sealing ring; 26. centrifugal motor; 27. driving pulley; 28. driven pulley; 29. ​​V-belt; 30. lifting cylinder; 31. lifting sealing ring; 32. guide cone; 33. sealing chamber cover; 34. drum sealing ring; 35. sight glass; 36. cover plate. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below through specific embodiments.

[0036] like Figures 1 to 5 As shown, a centrifuge for dipping and drying is shown, comprising a bottom plate 1, a supporting foot 2 is installed under the bottom plate 1, a mounting sleeve 3 is fixedly installed under the bottom plate 1, a driving spindle 4 is rotatably installed in the mounting sleeve 3, the driving spindle 4 passes through the bottom plate 1 and extends upward, the driving spindle 4 is driven to rotate by a centrifugal driving device, a drum base 5 is fixedly installed on the driving spindle 4, a sealing structure is provided on the driving spindle 4 between the drum base 5 and the bottom plate 1, a material storage box 6 is mounted on the drum base 5, and a material storage box 6 is mounted on the drum base 5. An opening 7 is provided, and hollow holes 8 are provided on the side walls and the bottom of the storage box 6. A shell 9 is fixedly installed on the bottom plate 1, and the shell 9 is sealed and fixed to the bottom plate 1. The drum base 5 is in the shell 9, and a dipping liquid 10 is stored in the shell 9. An extrusion device for squeezing the dipping liquid 10 to raise and lower the liquid level of the dipping liquid 10 is provided in the shell 9. The lowest point of the liquid level of the dipping liquid 10 is located below the drum base 5, and the highest point of the liquid level of the dipping liquid 10 is above the workpiece in the storage box 6. An openable and closable cover 36 is provided on the shell 9.

[0037] In this embodiment, the drum base 5 includes a rotating plate 11 fixedly mounted on the driving spindle 4 and a circular protrusion 12 fixedly mounted on the rotating plate 11. The rotating plate 11 is provided with a plurality of leakage holes 13 on the circumference for facilitating the dipping liquid 10 to pass through the rotating plate 11 and enter the storage box 6. The bottom of the storage box 6 is provided with a receiving groove 14 that is snap-fitted with the circular protrusion 12. The rotating plate 11 supports the bottom of the storage box 6. The opening 7 of the storage box 6 is provided with an inner eave 15 extending along the axis of the driving spindle 4. The rotating plate 11 is It is circular, and the middle part is fixedly connected to the driving main shaft 4 by screws. The accommodating groove 14 and the annular protrusion 12 on the storage box 6 are clipped together to ensure that the storage box 6 will not shake on the drum base 5, and the clipping is stable. After the storage box 6 is provided with a accommodating groove 14 in the middle part, the area for placing the workpiece forms a circular ring and contacts with the rotating plate 11. After the workpiece is placed, the storage box 6 has a certain weight, so it can rotate synchronously with the drum base 5. When the storage box 6 rotates, the inner edge 15 of the opening 7 can prevent the dipping liquid 10 from splashing outward from the opening 7.

[0038] like Figure 1 and Figure 2 As shown, the extrusion device includes an extrusion gravity ring 16 vertically lifted and installed in the shell 9, and the extrusion gravity ring 16 is driven to lift and lower by a lifting power device, and the inner hole size of the extrusion gravity ring 16 is larger than the size of the storage box 6; the extrusion gravity ring 16 is an annular structure, so when the extrusion gravity ring 16 descends, the space on the bottom plate 1 is occupied, so that the extruded dipping liquid 10 rises, passes through the leakage hole 13, and then enters the storage box 6 from the hollow hole 8 to immerse the workpiece. When the dipping is completed, the dipping liquid 10 can be returned to the bottom plate 1 by simply lifting the extrusion gravity ring 16, and the excess dipping liquid 10 in the storage box 6 will drip. The structure is simple and the lifting is stable and reliable.

[0039] Of course, there is another solution, such as Figure 3 As shown, the extrusion device includes an airbag 17 fixedly mounted on the bottom plate 1, and a gravity plate 18 is mounted on the airbag 17, and the gravity plate 18 is evenly distributed in the outer shell 9. The dipping liquid 10 is located on the gravity plate 18, and the cross-section of the gravity plate 18 is stepped. An air pipe 19 is connected to the airbag 17, and the air pipe 19 passes through the outer shell 9 and is connected to the positive and negative pressure system. The gravity plate 18 rises and falls to squeeze the dipping liquid 10 as the airbag 17 expands and contracts; an airbag 17 that expands and contracts upward is mounted on the bottom plate 1, and is controlled by the positive and negative pressure system, so that the dipping liquid 10 can be squeezed by the gravity plate 18 on the surface of the airbag 17 to raise the liquid level of the dipping liquid 10 and enter the storage box 6. The gravity plate 18 can also effectively protect the surface of the airbag 17 to prevent the airbag 17 from breaking and affecting its use.

[0040] In this embodiment, rotating bearings 21 are provided at both ends of the driving main shaft 4, and the driving main shaft 4 is rotatably installed in the mounting sleeve 3 through the rotating bearings 21. Limiting end plates 22 for limiting the rotating bearings 21 are fixedly installed at both ends of the mounting sleeve 3; a main shaft sealing ring 23 is also provided between the limiting end plate 22 and the driving main shaft 4; the mounting sleeve 3 is fixedly installed at the bottom of the base plate 1 by screws, and the driving main shaft 4 is rotatably installed inside to ensure that the driving main shaft 4 can rotate stably, and the limiting end plate 22 can ensure the installation and fixation of the rotating bearing 21, and improve the sealing of the driving main shaft 4 when it rotates; the limiting end plate 22 at one end is installed through the base plate 1, and is connected to the sealing structure at the same time to further ensure the sealing.

[0041] The sealing structure includes a sealing sleeve 24 installed on the driving spindle 4, and a rotating sealing ring 25 cooperating with the driving spindle 4 is arranged inside the sealing sleeve 24; a part of the driving spindle 4 is exposed in the outer shell 9 and contacts with the dipping liquid 10, and the sealing sleeve 24 prevents the dipping liquid 10 from entering the driving spindle 4, affecting the centrifugal effect and improving the sealing performance.

[0042] In this embodiment, the centrifugal drive device includes a centrifugal motor 26 fixedly mounted on the base plate 1, a driving pulley 27 is rotatably mounted on the output shaft of the centrifugal motor 26, a driven pulley 28 is rotatably mounted on the lower end of the driving spindle 4, and a V-belt 29 is used to transmit the power between the driving pulley 27 and the driven pulley 28; the V-belt 29 can effectively transmit the power, the installation is simple, the transmission is stable, and the centrifugal motor 26 is provided with two modes. When dipping, the centrifugal motor 26 controls the driving spindle 4 to rotate slowly and at a uniform speed, which can ensure that the workpiece can be coated. Then, when centrifugally drying, it is only necessary to control the driving spindle 4 to rotate quickly, which effectively improves the use effect.

[0043] The lifting power device includes a lifting cylinder 30, which is fixedly installed under the base plate 1. The guide rod of the lifting cylinder 30 passes through the base plate 1 and is connected to the extrusion gravity ring 16. A lifting sealing ring 31 is provided in the base plate 1 to seal the guide rod when it is lifted or lowered. The lifting cylinder 30 is installed around the extrusion gravity ring 16 under the base plate 1 to ensure that the extrusion gravity ring 16 can be lifted or lowered stably, and the lifting sealing ring 31 improves the sealing of the base plate 1 to prevent liquid leakage when the guide rod of the lifting cylinder 30 is lifted or lowered.

[0044] The upper end of the annular protrusion 12 is provided with a guide cone 32 that cooperates with the accommodating groove 14 for guiding. The upper end of the annular protrusion 12 is also provided with a sealing chamber cover 33 that seals the annular protrusion 12. A drum sealing ring 34 is provided between the annular protrusion 12 and the sealing chamber cover 33. The storage box 6 is put on the annular protrusion 12, and the guide cone 32 can ensure that the card installation is convenient. The storage box 6 is provided with a hollow hole 8. Sealing the sealing chamber cover 33 on the annular protrusion 12 can ensure that the dipping liquid 10 in the shell 9 will not enter the annular protrusion 12, thereby improving the sealing performance.

[0045] The cover plate 36 and the outer shell 9 are hingedly connected, and the cover plate 36 is also provided with a viewing mirror 35 for observing the interior of the outer shell 9; it is convenient to open the cover plate 36, place the storage box 6 and perform maintenance and inspection on the interior, and the cover plate 36 and the outer shell 9 can be effectively fixed by a lock or other switch structure. When the cover plate 36 is closed, the viewing mirror 35 can be used to conveniently observe whether the internal operation is accurate, thereby improving convenience; the viewing mirror 35 is an existing structure available on the market, and therefore it is not described in detail in this article.

[0046] The working principle of this embodiment is as follows: first, the cover plate 36 is opened, and the workpiece is placed in the storage box 6. The outer shell 9 stores the dipping liquid 10. Then, the lifting cylinder 30 pulls the extrusion gravity ring 16 down to make the liquid level of the dipping liquid 10 rise. The dipping liquid 10 enters the storage box 6 and covers the workpiece. The centrifugal motor 26 drives the driving spindle 4 to rotate slowly and uniformly through the V-belt 29, so that the workpiece in the storage box 6 rotates at a uniform speed. Then, the driving spindle 4 stops rotating, the extrusion gravity ring 16 rises, the liquid level of the dipping liquid 10 drops, and the driving spindle 4 starts high-speed centrifugal rotation to dry the excess dipping liquid 10 on the workpiece; the air bag 17 can also be inflated by blowing through the positive and negative pressure system to squeeze the dipping liquid 10 and raise the liquid level. Then, the positive and negative pressure system is evacuated, the air bag 17 contracts, and the liquid level of the dipping liquid 10 drops.

[0047] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solution of the present invention, without departing from the design spirit of the present invention, should fall within the scope of protection defined in the claims of the present invention.

Claims

1. A centrifuge for dipping and drying, comprising a bottom plate, and support legs are installed below the bottom plate, characterized in that: A mounting sleeve is fixedly installed below the bottom plate, a driving spindle is rotatably installed in the mounting sleeve, the driving spindle penetrates the bottom plate and extends upward, the driving spindle is driven to rotate by a centrifugal driving device, a rotating drum base is fixedly installed on the driving spindle, a sealing structure is provided on the driving spindle between the rotating drum base and the bottom plate, a storage box is mounted on the rotating drum base, the storage box is provided with an opening, the side wall and the bottom of the storage box are provided with hollow holes, an outer shell is fixedly installed on the bottom plate, the outer shell is sealed and fixed to the bottom plate, the rotating drum base is in the outer shell, a coating liquid is stored in the outer shell, a squeezing device for squeezing the coating liquid to raise and lower the liquid level of the coating liquid is provided in the outer shell, the lowest point of the coating liquid level is located below the rotating drum base, the highest point of the coating liquid level submerges the workpiece in the storage box, and an openable and closable cover is provided on the outer shell.

2. A centrifuge for dipping, coating and drying as claimed in claim 1, characterized in that: The drum base includes a rotating plate fixedly mounted on the driving main shaft and an annular protrusion fixedly mounted on the rotating plate. The rotating plate is provided with a plurality of leakage holes on the circumference thereof for facilitating the dipping liquid to pass through the rotating plate and enter the material storage box. The bottom of the material storage box is provided with a receiving groove which is snap-fitted with the annular protrusion. The rotating plate supports the bottom of the material storage box. The opening of the material storage box is provided with an inner eave extending toward the axis of the driving main shaft.

3. A centrifuge for dipping, coating and drying as claimed in claim 2, characterized in that: The extrusion device comprises an extrusion gravity ring which is vertically lifted and installed in a shell, the extrusion gravity ring is driven to lift and lower by a lifting power device, and the inner hole size of the extrusion gravity ring is larger than the size of the storage box.

4. A centrifuge for dipping, coating and drying as claimed in claim 2, characterized in that: The extrusion device includes an airbag fixedly mounted on a bottom plate, a gravity plate mounted on the airbag, the cross-section of the gravity plate being step-shaped, the gravity plate forming a receiving cavity for receiving the dipping liquid, an air pipe connected to the airbag, the air pipe passing through the outer shell and connected to the positive and negative pressure systems, and the gravity plate rising and falling to extrude the dipping liquid as the airbag expands and contracts.

5. A centrifuge for dipping, coating and drying as claimed in claim 3 or 4, characterized in that: A rotating bearing is installed on the driving main shaft, and the driving main shaft is rotatably installed in the mounting sleeve through the rotating bearing. Limiting end plates for limiting the rotating bearing are fixedly installed at both ends of the mounting sleeve; a main shaft sealing ring is also provided between the limiting end plate and the driving main shaft.

6. A centrifuge for dipping, coating and drying as claimed in claim 5, characterized in that: The sealing structure comprises a sealing sleeve mounted on the driving main shaft, wherein a rotating sealing ring matched with the driving main shaft is arranged in the sealing sleeve.

7. A centrifuge for dipping, coating and drying as claimed in claim 6, characterized in that: The centrifugal drive device comprises a centrifugal motor fixedly mounted on a bottom plate, a driving pulley is rotatably mounted on the output shaft of the centrifugal motor, a driven pulley is rotatably mounted on the lower end of the driving main shaft, and a V-belt is used to transmit the power between the driving pulley and the driven pulley.

8. A centrifuge for dipping, coating and drying as claimed in claim 3, characterized in that: The lifting power device comprises a lifting cylinder, which is fixedly installed below the bottom plate. The guide rod of the lifting cylinder passes through the bottom plate and is connected to the extrusion gravity ring. A lifting sealing ring is arranged inside the bottom plate to seal the guide rod when it is lifted or lowered.

9. A centrifuge for dipping, coating and drying as claimed in claim 2, characterized in that: The upper end of the annular protrusion is provided with a guiding cone surface which cooperates with the accommodating groove for guiding. The upper end of the annular protrusion is also provided with a sealing bin cover which seals the annular protrusion. A drum sealing ring is provided between the annular protrusion and the sealing bin cover.

10. The centrifuge for dipping, coating and drying as claimed in claim 1, characterized in that: The cover plate is hingedly connected to the shell, and a viewing mirror for observing the interior of the shell is also provided on the cover plate.

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