Coating barrel clamp tool

Abstract

The utility model discloses a coating barrel clamp tool, and relates to the technical field of fluidized beds, a coating barrel (1) is installed on a bottom spraying coating fluidized bed, the coating barrel clamp tool comprises a positioning base plate (2) installed on a workbench, a positioning base (3) and a plurality of positioning plates (5) which are installed on the positioning base plate (2), and a positioning mandrel (4) detachably connected in a connecting hole of the positioning base (3), the plurality of positioning plates (5) are uniformly distributed on a reference circle which takes the positioning base (3) as a circle center and takes a set distance as a radius, round holes in the bottom surface of a coating barrel (1) are sleeved on the corresponding positioning plates (5), and the bottom surface of the coating barrel (1) is propped against the positioning base plate (2); one side of the connecting plate is connected with the side wall of the coating barrel (1), and the other side of the connecting plate is connected with the outer wall of the positioning mandrel (4). The coating barrel clamp tool ensures that gaps between the three coating barrels and the airflow distribution plate are uniform and concentric, and the production quality of medicines is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fluidized beds, in particular to a coating barrel clamp tooling. Background Art

[0002] The bottom spray coating fluidized bed is a particle powder coating equipment that combines spray technology with fluidized coating technology. During the bottom spray coating of the fluidized bed, the material is blown up from the inside of the coating barrel and falls from the outside of the coating barrel, so that the material is fluidized in the material bin. With bottom spray fluidization, the material has a regular "ring" running track, so a uniform and continuous film coating can be obtained. Typical applications: pills, granules, powder coating, sustained-release film coating, skeleton sustained-release.

[0003] The airflow blowing the material through the airflow distribution plate can achieve material fluidization. The gaps between the three coating barrels and the airflow distribution plate are uniform and concentric, which can ensure the consistency of the fluidization state of the materials in the three coating barrels and the uniformity of drug coating. That is, the gap size between the three coating barrels and the airflow distribution plate is an important parameter to ensure the quality of drug production.

[0004] At present, the fluidized bed bottom spray coating barrels in the industry are 3 independent coating barrels. When installing the coating barrels, first manually adjust the gap and concentricity between one of the coating barrels and the air distribution plate, and then manually adjust the other two coating barrels in turn. With the existing three coating barrels, it is difficult to control the gap between the three coating barrels and the air distribution plate within 1mm, which is prone to gap and concentricity problems; the adjustment effect is not good, resulting in different fluidization states of the materials, which ultimately affects the quality of the drugs; there is no unified adjustment mechanism, and it is difficult to ensure that the gaps and concentricity of the three coating barrels are uniform in one adjustment; the existing adjustment method is completely based on personal feelings and techniques, mainly based on the welding skills and experience of the welder, which is difficult to operate. The results after adjustment by different people are different, and the results are difficult to guarantee; the welding of the coating barrels requires continuous attempts, and the welding adjustment time is long.

[0005] In summary, how to effectively solve the problem of uneven gaps and eccentricity between the three-coating barrel and the airflow distribution plate is an urgent problem that technicians in this field need to solve. Utility Model Content

[0006] The utility model aims to provide a coating barrel clamp tooling, which can ensure that the gaps between three coating barrels and an air flow distribution plate are uniform and concentric, thereby improving the production quality of medicines.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A coating barrel fixture tooling, the coating barrel is installed on a bottom spray coating fluidized bed, including a positioning base plate installed on a workbench, a positioning base and a plurality of positioning plates installed on the positioning base plate, and a positioning core shaft detachably connected to a connecting hole of the positioning base, wherein the plurality of positioning plates are evenly distributed on a pitch circle with the positioning base as the center and a set distance as the radius, the bottom circular hole of the coating barrel is sleeved on the corresponding positioning plate, and the bottom surface of the coating barrel abuts against the positioning base plate; and also includes a connecting plate connected to the side wall of the coating barrel on one side and to the outer wall of the positioning core shaft on the other side.

[0009] Optionally, the flatness of the positioning substrate is less than or equal to 0.2 mm.

[0010] Optionally, the circular hole on the bottom surface of the coating drum and the cross-section of the positioning plate are both circular, and the circular hole on the bottom surface of the coating drum and the positioning plate are clearance-fitted.

[0011] Optionally, the gap between the circular hole on the bottom surface of the coating barrel and the positioning plate is less than or equal to 0.1 mm.

[0012] Optionally, a center hole is provided at the center of the positioning plate, and the center hole is located on the pitch circle.

[0013] Optionally, the positioning substrate, the positioning base, and the pitch circle are concentric circles, and the positioning plate and the positioning substrate are detachably connected.

[0014] Optionally, the outer walls of the coating barrel and the positioning mandrel have slots matching the connecting plate, and the coating barrel and the positioning mandrel are connected to the connecting plate by welding.

[0015] Optionally, the base connecting hole is rotatably connected to the positioning core shaft.

[0016] Optionally, the connecting plate is connected to the upper part of the positioning mandrel, the lower part of the positioning mandrel has an internal thread that cooperates with a lifting threaded rod, and the lower end of the lifting threaded rod is connected to a bevel gear transmission mechanism.

[0017] Optionally, the positioning base is fixed on a circular positioning substrate, the circular holes on the bottom of the three coating barrels are correspondingly mounted on the three circular positioning plates, the bottom surface of the coating barrel is fitted with the upper surface of the positioning substrate, the gap between the circular holes on the bottom of the coating barrel and the positioning plate is 0.05mm, and the flatness of the positioning substrate is 0.1mm.

[0018] The beneficial effect of the utility model is that the coating barrel fixture is used to position multiple coating barrels, and the coating barrels are installed in the bottom spray coating fluidized bed. The coating barrel fixture includes a positioning substrate, a positioning base, a positioning plate, a positioning mandrel and a connecting plate. The positioning substrate is installed on the workbench, and the positioning substrate is fixedly connected to the workbench. The positioning substrate is used as a reference plane, which is equivalent to the airflow distribution plate in the bottom spray coating fluidized bed, and the surface of the positioning substrate is relatively flat and smooth.

[0019] The positioning base and several positioning plates are installed on the positioning base plate, the positioning base is installed in the middle position, and several positioning plates are installed on the periphery. The spacing angles between the positioning plates are equal, and the positioning plates are evenly distributed on the pitch circle with the positioning base as the center and the set distance as the radius. The specific radius is determined according to the size and shape of the coated drug. When the fluidized bed is sprayed at the bottom of the coating, the material is blown up from the inside of the coating barrel and falls from the outside of the coating barrel. When the material is fluidized in the material bin, the fluidization state of the materials in the three coating barrels is guaranteed to be consistent, and the drug is coated more evenly in all directions.

[0020] The coating barrel is cylindrical. When the coating barrel is connected, the bottom surface of the coating barrel abuts against the positioning base plate. The positioning base plate aligns the angle of the bottom surface of the coating barrel, that is, the gap between the bottom surface of the coating barrel and the air flow distribution plate in the bottom spray coating fluidized bed is controlled. The bottom circular hole is mounted on the corresponding positioning plate. The position of the positioning plate aligns the position of the coating barrel to ensure that the fluidization state of the material in the coating barrel is consistent and the drug is coated more uniformly in all directions. After the position and angle of the coating barrel are determined, one side of the connecting plate is connected to the side wall of the coating barrel, and the other side is connected to the outer wall of the positioning mandrel, so that multiple coating barrels and positioning mandrels are assembled into a whole.

[0021] The positioning mandrel and the connection hole of the positioning base are detachably connected. When positioning the coating barrel, the positioning mandrel is connected to the connection hole of the positioning base, and several coating barrels are connected to the positioning mandrel respectively. Multiple coating barrels are connected to one positioning mandrel to form a whole. The positioning mandrel and the coating barrel are taken out from the connection block of the positioning base together and connected to the bottom spray coating fluidized bed, waiting for subsequent use.

[0022] The coating barrel clamp tooling provided by the utility model can locate the positions and bottom angles of multiple coating barrels, ensure that the gap between the coating barrel and the air flow distribution plate is uniform and small; ensure that the fluidization state of the material in the coating barrel is consistent, the drug coating in all directions is relatively uniform, and the drug coating quality is high; multiple coating barrels can be installed, disassembled and lifted at the same time, and the control is convenient and the lifting and lowering are free; multiple coating barrels are a whole, and the gap and concentricity between the coating barrel and the air flow distribution plate are uniformly adjusted, eliminating the problem of different adjustment techniques; adjustment time is saved, labor is saved, and work intensity is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the structure of a coating barrel clamp tooling provided in a specific embodiment of the utility model;

[0025] Figure 2 This is the front view of the coating barrel fixture;

[0026] Figure 3 It is a top view of the coating barrel fixture;

[0027] Figure 4 It is a cross-sectional view of the coating barrel fixture;

[0028] Figure 5 It is the connection diagram between the coating barrel and the bevel gear transmission mechanism;

[0029] Figure 6 It is a cross-sectional view of the connection between the coating barrel and the bevel gear transmission mechanism.

[0030] The following are marked in the accompanying drawings:

[0031] Coating barrel 1, positioning base plate 2, positioning base 3, positioning mandrel 4, positioning plate 5, bevel gear transmission mechanism 6. DETAILED DESCRIPTION

[0032] The core of the utility model is to provide a coating barrel clamp tooling, which can ensure that the gaps between three coating barrels and an air flow distribution plate are uniform and concentric, thereby improving the production quality of medicines.

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] During the bottom spray coating of the fluidized bed, the material is blown up from the inside of the coating barrel 1 and falls from the outside of the coating barrel 1, so that the material is fluidized in the material bin. In this application, the three coating barrels 1 are positioned and connected by the coating barrel fixture, so that the gaps between the three coating barrels 1 and the air flow distribution plate are uniform and concentric, ensuring that the fluidization state of the materials in the three coating barrels 1 is consistent and the uniformity of the drug coating is ensured.

[0035] Specifically, please refer to Figures 1 to 6 The coating barrel fixture provided by the utility model, the coating barrel 1 is installed on the bottom spray coating fluidized bed, including a positioning base plate 2 installed on the workbench, a positioning base 3 and a plurality of positioning plates 5 installed on the positioning base plate 2, and a positioning core shaft 4 detachably connected to the connecting hole of the positioning base 3, and the plurality of positioning plates 5 are evenly distributed on a pitch circle with the positioning base 3 as the center and a set distance as the radius. The bottom circular hole of the coating barrel 1 is sleeved on the corresponding positioning plate 5, and the bottom surface of the coating barrel 1 abuts on the positioning base plate 2; it also includes a connecting plate connected to the side wall of the coating barrel 1 on one side and connected to the outer wall of the positioning core shaft 4 on the other side.

[0036] In the above structure, the coating barrel fixture is used to position multiple coating barrels 1, and the coating barrels 1 are installed in the bottom spray coating fluidized bed. The coating barrel fixture includes a positioning substrate 2, a positioning base 3, a positioning plate 5, a positioning mandrel 4 and a connecting plate. The positioning substrate 2 is installed on the workbench, and the positioning substrate 2 is fixedly connected to the workbench. The positioning substrate 2 is used as a reference plane, which is equivalent to the air flow distribution plate in the bottom spray coating fluidized bed. The surface of the positioning substrate 2 is relatively flat and smooth.

[0037] The positioning base 3 and a plurality of positioning plates 5 are installed on the positioning base plate 2, the positioning base 3 is installed in the middle position, and the plurality of positioning plates 5 are installed on the periphery. The spacing angles between the plurality of positioning plates 5 are equal, and the plurality of positioning plates 5 are evenly distributed on a pitch circle with the positioning base 3 as the center and the set distance as the radius. The specific radius is determined according to the size and shape of the coated drug and other requirements. When the fluidized bed is sprayed at the bottom of the coating, the material is blown up from the inside of the coating barrel 1 and falls from the outside of the coating barrel 1. When the material is fluidized in the material bin, the fluidization state of the materials in the three coating barrels 1 is ensured to be consistent, and the drug is coated more evenly in all directions.

[0038] The coating barrel 1 is cylindrical. When the coating barrel 1 is connected, the bottom surface of the coating barrel 1 abuts against the positioning substrate 2. The positioning substrate 2 aligns the bottom angle of the coating barrel 1, that is, the gap between the bottom surface of the coating barrel 1 and the air flow distribution plate in the bottom spray coating fluidized bed is controlled. The bottom circular hole is mounted on the corresponding positioning plate 5. The position of the positioning plate 5 aligns the position of the coating barrel 1 to ensure that the fluidization state of the material in the coating barrel 1 is consistent and the drug is coated more uniformly in all directions. After the position and angle of the coating barrel 1 are determined, one side of the connecting plate is connected to the side wall of the coating barrel 1, and the other side is connected to the outer wall of the positioning mandrel 4, so that multiple coating barrels 1 and the positioning mandrel 4 are assembled into a whole.

[0039] The positioning mandrel 4 is detachably connected to the connection hole of the positioning base 3. When positioning the coating barrel 1, the positioning mandrel 4 is connected to the connection hole of the positioning base 3, and several coating barrels 1 are respectively connected to the positioning mandrel 4. Multiple coating barrels 1 are connected to one positioning mandrel 4 to form a whole. The positioning mandrel 4 and the coating barrel 1 are taken out from the connection block of the positioning base 3 together, connected to the bottom spray coating fluidized bed, and wait for subsequent use.

[0040] The coating barrel clamp tooling provided by the utility model can locate the positions and bottom angles of multiple coating barrels 1, ensure that the gap between the coating barrel 1 and the airflow distribution plate is uniform and small; ensure that the fluidization state of the material in the coating barrel 1 is consistent, the drug coating in all directions is relatively uniform, and the drug coating quality is high; multiple coating barrels 1 can be installed, disassembled and lifted at the same time, and the control is convenient and the lifting and lowering are free; multiple coating barrels 1 are a whole, and the gap and concentricity between the coating barrel 1 and the airflow distribution plate are uniformly adjusted, eliminating the problem of different adjustment techniques; adjustment time is saved, labor is saved, and work intensity is reduced.

[0041] The above-mentioned coating barrel clamp tooling is only a preferred solution and is not limited to this. On this basis, targeted adjustments can be made according to actual needs to obtain different implementation methods. The flatness of the positioning substrate 2 is less than or equal to 0.2 mm.

[0042] In a specific embodiment, the surface of the positioning substrate 2 is machined, and the surface is flat and smooth, with a flatness less than or equal to 0.2 mm, such as 0.05 mm, 0.1 mm, or 0.2 mm. The smaller the value, the higher the flatness, the smoother it is, the smaller the gap between the coating barrel 1 and the positioning substrate 2, the better the contact between the coating barrel 1 and the positioning substrate 2, and the higher the stability.

[0043] The bottom surface of the coating barrel 1 is in contact with the positioning base plate 2, is placed flat, has a large contact area, and is not easy to change its position. When the coating barrel 1 is welded with the positioning core shaft 4, the operation difficulty is reduced. Based on the welding skills and experience of the welder, it is easy to control the gap between multiple coating barrels 1 and the airflow distribution plate within 1 mm.

[0044] In another more reliable embodiment, based on any one of the above embodiments, the cross-sections of the circular hole on the bottom surface of the coating drum 1 and the positioning plate 5 are both circular, and the circular hole on the bottom surface of the coating drum 1 and the positioning plate 5 are clearance-fitted.

[0045] In a specific embodiment, the shape of the positioning plate 5 is determined according to the shape of the hole on the bottom of the coating drum 1, and the shape of the positioning plate 5 is consistent with the shape of the hole on the bottom of the coating drum 1. Since the bottom of the coating drum 1 is a round hole, the cross section of the positioning plate 5 is set to be round. In order to facilitate the smooth assembly of the two, the size of the positioning plate 5 is slightly smaller. After connection, the round hole on the bottom of the coating drum 1 and the positioning plate 5 are clearance-matched. The smaller the clearance, the more accurate the positioning of the coating drum 1.

[0046] On the basis of the above-mentioned specific embodiments, the gap between the circular hole on the bottom of the coating barrel 1 and the positioning plate 5 is less than or equal to 0.1 mm, for example, 0.1 mm, 0.05 mm, or 0.1 mm. The gap is small, the circular hole on the bottom of the coating barrel 1 is just fitted on the positioning plate 5, the circular hole fits tightly against the positioning plate 5, the shaking amount of the coating barrel 1 is small, the positioning of the coating barrel 1 is accurate, and the positioning error is small.

[0047] In another more reliable embodiment, based on any one of the above embodiments, the center of the positioning plate 5 has a center hole, and the center hole is located on the pitch circle.

[0048] In a specific embodiment, a center hole is opened at the center of the positioning plate 5, and the diameter of the center hole is small, such as 1-5 mm. A pitch circle is drawn on the positioning substrate 2, and the center of the center hole of the positioning plate 5 coincides with the pitch circle. The position of the positioning plate 5 is determined by the center hole, which is convenient to control and more accurate in positioning.

[0049] On the basis of the above-mentioned specific embodiments, the positioning substrate 2, the positioning base 3 and the pitch circle are concentric circles, and the positioning plate 5 and the positioning substrate 2 are detachably connected.

[0050] In a specific embodiment, the positioning substrate 2 and the positioning base 3 are both circular in shape, and the positioning substrate 2, the positioning base 3, and the pitch circle are concentric circles with the same center position, which is the same positioning base point. One base point can determine the positions of multiple components and reference lines, and the operation is relatively simple and accurate.

[0051] The positioning plate 5 and the positioning base plate 2 are detachably connected. When the size of the positioning plate 5 changes or it is severely worn or deformed and needs to be replaced, the positioning plate 5 is removed from the positioning base plate 2 and replaced to match the corresponding coating barrel 1 so that the coating barrel 1 can be accurately positioned.

[0052] In a preferred embodiment, the positioning plate 5 and the positioning base plate 2 are connected by screws, which is convenient to connect and easy to disassemble. The fixing holes of the coating barrel 1 corresponding to the positioning plate 5 and the laser blanking positioning plate 5 are machined by a machine tool, and the positioning plate 5 is accurately machined to ensure concentricity.

[0053] In another more reliable embodiment, based on any of the above embodiments, the outer walls of the coating barrel 1 and the positioning core shaft 4 have slots matching the connecting plate, and the coating barrel 1 and the positioning core shaft 4 are connected to the connecting plate by welding.

[0054] In a preferred embodiment, the outer walls of the coating barrel 1 and the positioning mandrel 4 have slots, the shape and size of the slots match the shape and size of the end face of the connecting plate, the end of the connecting plate is just inserted into the slot, there is a small gap between the slot and the connecting plate, and the slot has a locking effect on the connecting plate. After the connecting plate is inserted into the slot, the coating barrel 1 and the positioning mandrel 4 are welded to the connecting plate. The ends of the connecting plate are not only connected by welding, but the slots also support the connecting plate to prevent the connecting plate, the coating barrel 1 and the positioning mandrel 4 from sliding down, and the connection position has a high bending strength. At the same time, the welding operation method of the coating barrel 1 is standardized, changing the previous manual alignment, which has no standards to follow and low alignment accuracy, and alignment by a fixture to ensure clearance and concentricity.

[0055] On the basis of the above-mentioned specific embodiments, the base connection hole and the positioning core shaft 4 are rotationally connected.

[0056] In some embodiments, there is a gap between the connecting hole of the positioning base 3 and the positioning core shaft 4, and the positioning core shaft 4 can rotate in the connecting hole along its axial direction, and the coating barrel 1 is aligned with the positioning plate 5 so as to adjust the slot of the coating barrel 1, the slot of the positioning core shaft 4 and the center of the positioning base plate 2 in a straight line, thereby completing the connection between the connecting plate, the coating barrel 1 and the positioning core shaft 4, and the connection position is accurate.

[0057] Specifically, since the coating barrel 1 is connected to the positioning mandrel 4 through the connecting plate and the slot, the position and angle of the slot on the positioning mandrel 4 are determined, that is, the position and angle of the coating barrel 1 and the positioning mandrel 4 are determined. The bottom circular hole of the coating barrel 1 is sleeved on the positioning plate 5 to ensure that the coating barrel 1 and the positioning plate 5 are aligned up and down. At this time, if the slot of the coating barrel 1 and the slot of the positioning rotation are not aligned, the positioning mandrel 4 is rotated so that the slot of the coating barrel 1, the slot of the positioning mandrel 4 and the center of the positioning base plate 2 are in a straight line, and the two sides of the connecting plate are respectively inserted into the slot of the coating barrel 1 and the slot of the positioning mandrel 4, and the connecting plate, the coating barrel 1 and the positioning mandrel 4 are welded together by welding.

[0058] Based on the above specific embodiments, the connecting plate is connected to the upper part of the positioning core shaft 4, the lower part of the positioning core shaft 4 has an inner thread that cooperates with the lifting threaded rod, and the lower end of the lifting threaded rod is connected to the bevel gear transmission mechanism 6.

[0059] In some embodiments, the connecting plate is connected to the upper middle part of the positioning mandrel 4, and a large space is reserved at the lower part of the positioning mandrel 4. The lower part of the positioning mandrel 4 has an inner hole, and the inner hole is provided with an inner thread, and the inner thread cooperates with the lifting screw rod to realize the spiral lifting of the positioning mandrel 4 and the lifting screw rod. The lower end of the lifting screw rod is connected to the bevel gear transmission mechanism 6, and the other end of the bevel gear transmission mechanism 6 is connected to the hand wheel through the connecting rod. The hand wheel is turned to drive the bevel gear to mesh to drive the positioning mandrel 4 and the lifting screw rod to do spiral motion, so as to realize the simultaneous lifting and lowering of multiple coating barrels 1, ensure uniform gaps, and avoid deviations caused by human adjustment.

[0060] Optionally, the positioning mandrel 4 and the positioning plate 5 of the coating barrel 1 are processed by a machine tool to ensure uniform gaps and free lifting and lowering.

[0061] In a preferred embodiment, the positioning core shaft 4 includes an upper positioning sleeve and a lower positioning shaft, and the coating barrel 1 is connected to the side wall of the positioning sleeve. The positioning shaft lengthens the positioning sleeve so as to be connected to the lifting sleeve screw rod. The positioning shaft is connected to the connecting hole of the positioning base 3, and the two are connected by screws. The upper end of the positioning shaft is connected to the positioning sleeve, and the side walls of the two have through holes. After the connection is completed, the through holes are aligned, and the connecting pins in the through holes are locked. When the coating barrel 1 is connected to the lifting sleeve screw rod, the positioning sleeve and the positioning shaft are separated, the inner wall of the positioning sleeve has an inner thread, and the positioning sleeve is spirally connected to the lifting sleeve screw rod.

[0062] In another more reliable embodiment, based on any one of the above embodiments, the positioning base 3 is fixed on the circular positioning substrate 2, the circular holes on the bottom surfaces of the three coating barrels 1 are correspondingly mounted on the three circular positioning plates 5, the bottom surface of the coating barrel 1 is fitted with the upper surface of the positioning substrate 2, the gap between the circular hole on the bottom surface of the coating barrel 1 and the positioning plate 5 is 0.05mm, and the flatness of the positioning substrate 2 is 0.1mm.

[0063] In some preferred embodiments, the assembly process of the coating barrel fixture tooling includes:

[0064] The positioning base 3 is mounted on the positioning substrate 2, the cross sections of the positioning substrate 2 and the positioning base 3 are circular, and the center of the positioning base 3 coincides with the center of the positioning substrate 2;

[0065] Insert the positioning mandrel 4 into the connecting hole of the positioning base 3;

[0066] Install three directional plates on the positioning substrate 2, and the pitch circles of the three positioning plates 5 are concentric with the positioning substrate 2;

[0067] The bottom circular hole of the coating drum 1 is mounted on the positioning plate 5, and the bottom surface of the coating drum 1 is fitted with the positioning base plate 2;

[0068] Rotate the coating barrel 1 and the positioning mandrel 4 so that the slot of the coating barrel 1 and the slot of the positioning mandrel 4 are aligned with the center of the positioning substrate 2;

[0069] Insert the two ends of the connecting plate into the slots of the coating barrel 1 and the slots of the positioning core shaft 4 respectively, weld the connecting plate, the positioning core shaft 4 and the coating barrel 1, and complete the connection of several coating barrels 1.

[0070] It should be noted that the circular positioning base 3 is fixed at the center of the circular positioning substrate 2, and three circular positioning plates 5 are fixed on the outer periphery of the positioning substrate 2, with a spacing of 120° between each other. The gap between the bottom circular hole of the coating drum 1 and the positioning plate 5 is 0.05 mm, and the bottom circular holes of the three coating drums 1 are respectively mounted on the three positioning plates 5. The bottom surface of the coating drum 1 is in contact with the upper surface of the positioning substrate 2, and the flatness of the positioning substrate 2 is 0.1 mm.

[0071] The coating barrel 1 is manufactured by using a coating barrel fixture, which saves labor, improves efficiency, and ensures that the distance between the three coating barrels 1 and the bottom plate is within 1 mm, while ensuring the concentricity of the three sleeves and the bottom screen; the welding operation method of the coating barrel 1 is standardized, changing the previous manual alignment, which has no standards to rely on and has low alignment accuracy. Alignment through the fixture ensures clearance and concentricity.

[0072] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] The above is a detailed introduction to the coating barrel clamp tooling provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A coating barrel fixture, wherein the coating barrel (1) is installed in a bottom spray coating fluidized bed, characterized in that: The invention comprises a positioning base plate (2) mounted on a workbench, a positioning base (3) and a plurality of positioning plates (5) mounted on the positioning base plate (2), and a positioning core shaft (4) detachably connected to a connecting hole of the positioning base (3), wherein the plurality of positioning plates (5) are evenly distributed on a pitch circle with the positioning base (3) as the center and a set distance as the radius, the bottom circular hole of the coating barrel (1) is sleeved on the corresponding positioning plate (5), and the bottom surface of the coating barrel (1) abuts against the positioning base plate (2); and further comprises a connecting plate, one side of which is connected to the side wall of the coating barrel (1) and the other side of which is connected to the outer wall of the positioning core shaft (4).

2. The coating barrel fixture according to claim 1, characterized in that: The flatness of the positioning substrate (2) is less than or equal to 0.2 mm.

3. The coating barrel fixture according to claim 1, characterized in that: The circular hole on the bottom surface of the coating barrel (1) and the cross-section of the positioning plate (5) are both circular, and the circular hole on the bottom surface of the coating barrel (1) and the positioning plate (5) are clearance-fitted.

4. The coating barrel fixture according to claim 3, characterized in that: The gap between the circular hole on the bottom surface of the coating barrel (1) and the positioning plate (5) is less than or equal to 0.1 mm.

5. The coating barrel fixture according to claim 1, characterized in that: The positioning plate (5) has a central hole at its center, and the central hole is located on the pitch circle.

6. The coating barrel fixture according to claim 5, characterized in that: The positioning substrate (2), the positioning base (3) and the pitch circle are concentric circles, and the positioning plate (5) and the positioning substrate (2) are detachably connected.

7. The coating barrel fixture according to claim 1, characterized in that: The outer walls of the coating barrel (1) and the positioning core shaft (4) have slots matching the connecting plate, and the coating barrel (1) and the positioning core shaft (4) are connected to the connecting plate by welding.

8. The coating barrel fixture according to claim 7, characterized in that: The connection hole of the positioning base (3) is rotationally connected to the positioning core shaft (4).

9. The coating barrel fixture according to claim 8, characterized in that: The connecting plate is connected to the upper part of the positioning mandrel (4), the lower part of the positioning mandrel (4) has an internal thread that cooperates with a lifting threaded rod, and the lower end of the lifting threaded rod is connected to a bevel gear transmission mechanism (6).

10. The coating barrel clamp tooling according to any one of claims 1 to 9, characterized in that: The positioning base (3) is fixed on the circular positioning substrate (2), and the circular holes on the bottom surfaces of the three coating barrels (1) are correspondingly mounted on the three circular positioning plates (5). The bottom surface of the coating barrel (1) is in contact with the upper surface of the positioning substrate (2), and the gap between the circular holes on the bottom surface of the coating barrel (1) and the positioning plate (5) is 0.05 mm. The flatness of the positioning substrate (2) is 0.1 mm.

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