Vacuum dryer for preparing film coating premix

Abstract

The utility model discloses a vacuum dryer for preparing a film coating premix, and relates to the technical field of film coating premix preparation. The upper end of the tank body is provided with a drying device, a vacuum pump and a feeding assembly, the bottom of the tank body is provided with a discharging assembly, an inner cavity of the tank body is provided with a driving assembly, the driving assembly is provided with a plurality of stirring assemblies, each stirring assembly is provided with an auxiliary assembly, and the inner wall of the tank body is provided with a plurality of groups of first clamping plates and second clamping blocks. The stirring assembly can be driven to rotate through the driving assembly, the stirring assembly can make contact with and be matched with the first clamping plate when rotating, the stirring assembly can do up-down reciprocating motion while rotating, and rotation of the stirring assembly can drive the auxiliary assembly to rotate; and the auxiliary assembly can be in contact fit with the second clamping block during rotation, so that the auxiliary assembly reciprocates to vibrate the materials in the tank body, and the condensed blocky materials are flapped.

Description

Technical Field

[0001] The utility model belongs to the technical field of film coating premix preparation, in particular to a vacuum dryer for preparing film coating premix. Background Art

[0002] Film coating premixes are pharmaceutical excipients used primarily as raw materials for film coating. Through scientifically formulated and pre-treated preparations, film-coated tablets are ultimately formed. These premixes require a suitable solvent to dissolve the coating powder, which is then sprayed onto the tablets to form the film-coated tablets. Film coating premixes have a variety of pharmaceutical applications, including but not limited to improving drug appearance, enhancing product quality, and enhancing drug identification.

[0003] In the production process of film coating premix, drying is a key link. However, when the existing vacuum dryer is used to dry the film coating premix, the film coating premix material is easily condensed into lumps, which affects the drying effect. In addition, the drying is uneven, which affects the quality of the film coating premix. Therefore, it is necessary to design a vacuum dryer specifically for the preparation of film coating premix.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Utility Model Content

[0005] In view of the problems in the related art, the utility model proposes a vacuum dryer for preparing a film coating premix to overcome the above technical problems existing in the existing related art.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a vacuum dryer for preparing a film coating premix, comprising a tank body, a drying device, a vacuum pump, and a feeding assembly installed on the upper end of the tank body, a discharging assembly installed on the bottom of the tank body, a driving assembly installed in the inner cavity of the tank body, a plurality of stirring assemblies installed on the driving assembly, and auxiliary assemblies installed on each of the stirring assemblies, and a plurality of groups of first clamping plates and second clamping blocks installed on the inner wall of the tank body, wherein the number of the first clamping plates and the second clamping blocks is the same as that of the stirring assemblies;

[0008] The drying device is used to provide the heat required for drying into the tank body, the vacuum pump is used to extract the air in the tank body to create a vacuum environment, the feeding assembly is used to pour the material into the tank body, the driving assembly is used to drive the stirring assembly to rotate, so as to stir the material inside the tank body through the stirring assembly, and the stirring assembly will adapt to the first card plate one by one during rotation to vibrate and disperse the material, and the stirring assembly will drive the auxiliary assembly to rotate so that the auxiliary assembly can adapt to the second card block one by one to further vibrate and disperse the material, and the discharging assembly is used to discharge the material out of the tank body.

[0009] Furthermore, the feed assembly includes a feed bin, which is installed on the upper surface of the tank body and is communicated with the inner cavity of the tank body. A feed baffle is installed through and slidingly installed on the feed bin, and the feed baffle can completely close the feed bin. A first handle is installed on the feed baffle.

[0010] Furthermore, the driving assembly includes a motor, which is installed on the upper surface of the tank body. A driving shaft is installed on the motor axis, and the lower end of the driving shaft passes through the tank body and extends into the inner cavity. A cross rod is installed on the lower end of the driving shaft, and several groups of fixed structures are installed on the cross rod. The number of the fixed structures is the same as that of the stirring assembly, and the fixed structure includes an upper fixed plate and a lower fixed plate.

[0011] Furthermore, the stirring assembly includes a cross stirring frame, which is slidably installed on the cross rod, and the upper surface of the cross stirring frame is in contact with the lower surface of the upper fixed plate. The four ends of the cross stirring frame are installed with a first inclined block, and the first clamping block is installed on the first clamping plate. The first clamping block and the first inclined block can be adapted. The stirring assembly also includes a first spring, which is installed around the cross rod, the lower end of the first spring is in contact with the upper surface of the lower fixed plate, and the upper end of the first spring is in contact with the lower surface of the upper fixed plate.

[0012] Furthermore, the auxiliary component includes a fixing rod, both ends of the fixing rod are mounted on a mounting plate, the mounting plates are mounted on the bottom surface of the cross stirring frame, a connecting plate is passed through and slidably mounted on the fixing rod, a second inclined block is mounted at one end of the connecting plate, the second inclined block can be adapted to the second clamping block, a second spring is mounted around the fixing rod, one end of the second spring is in contact with the mounting plate, and the other end of the second spring is in contact with the surface of the connecting plate.

[0013] Furthermore, the discharging assembly includes a discharging bin, which is installed on the lower surface of the tank body and is communicated with the inner cavity of the tank body. A discharging baffle is penetrated and slidably installed on the discharging bin, and the discharging baffle can completely close the discharging bin. A second handle is installed on the discharging baffle.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model can drive the stirring component to rotate through the driving component, so that the stirring component can stir the material in the tank body, and the stirring component will also contact and adapt with its first clamping plate when rotating, so that the stirring component can also make up and down reciprocating motion while rotating, vibrating the material in the tank body and beating the coagulated block material, and the rotation of the stirring component can drive the auxiliary component to rotate, so that the auxiliary component can contact and adapt with the second clamping block when rotating, so that the auxiliary component can reciprocate, further beating the coagulated block material, and then breaking up the coagulated block material, avoiding affecting the effect of its drying treatment, making the drying uniform, and improving the quality of the film coating premix.

[0016] 2. The utility model can drive the cross stirring frame and the second oblique block to rotate through the motor, so that the cross can be in contact and fit with the first clamping block through rotation, so that the cross stirring frame can reciprocate up and down during rotation, vibrate and beat the material, and break up the coagulated block material. Moreover, the second oblique block can be in contact and fit with its second clamping block through rotation, so that the connecting plate and the second oblique block can slide back and forth on the fixed rod, and can further beat the coagulated block material, thereby achieving the effect of improving the drying of the material, improving the quality of the film coating premix, and improving work efficiency.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for describing the embodiments. 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 creative work.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 For the utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0021] Figure 3 This is the second schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 4 For the utility model Figure 3 A schematic diagram of the partially enlarged structure at point B in the middle;

[0023] Figure 5 This is a schematic diagram of the internal structure of the tank body of the present utility model;

[0024] Figure 6 For the utility model Figure 5 A schematic diagram of the partially enlarged structure at point C in the middle;

[0025] Figure 7 This is a schematic diagram of the drive assembly structure of the utility model;

[0026] Figure 8 For the utility model Figure 7 The schematic diagram of the partially enlarged structure at D in the middle;

[0027] Figure 9 For the utility model Figure 7 Schematic diagram of the locally enlarged structure at point E in the middle.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Tank body; 2. Drying device; 3. Vacuum pump; 4. Feed assembly; 5. Discharge assembly; 6. Drive assembly; 7. Stirring assembly; 8. Auxiliary assembly; 9. First clamping plate; 10. Second clamping block; 11. Feed bin; 12. Feed baffle; 13. First handle; 14. Motor; 15. Drive shaft; 16. Cross rod; 17. Fixed structure; 18. Upper fixed plate; 19. Lower fixed plate; 20. Cross stirring frame; 21. First inclined block; 22. First clamping block; 23. First spring; 24. Fixed rod; 25. Mounting plate; 26. Connecting plate; 27. Second inclined block; 28. Second spring; 29. ​​Discharge bin; 30. Discharge baffle; 31. Second handle. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the utility model embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the utility model embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of utility model protection.

[0031] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] See also Figures 1-9 As shown, the utility model is a vacuum dryer for preparing a film coating premix, comprising a tank body 1, a drying device 2, a vacuum pump 3, and a feeding assembly 4 are installed on the upper end of the tank body 1, a discharging assembly 5 is installed at the bottom of the tank body 1, a driving assembly 6 is installed in the inner cavity of the tank body 1, a plurality of stirring assemblies 7 are installed on the driving assembly 6, and an auxiliary assembly 8 is installed on each of the stirring assemblies 7. A plurality of groups of first clamps 9 and second clamping blocks 10 are installed on the inner wall of the tank body 1, and the number of the first clamps and the second clamping blocks 10 is the same as that of the stirring assemblies 7;

[0033] The drying device 2 is used to provide the heat required for drying to the tank body 1, the vacuum pump 3 is used to extract the air in the tank body 1 to create a vacuum environment, the feeding component 4 is used to pour the material into the tank body 1, the driving component 6 is used to drive the stirring component 7 to rotate, so as to stir the material inside the tank body 1 through the stirring component 7, and the stirring component 7 will adapt to the first card one by one during rotation to vibrate and disperse the material, and the stirring component 7 will drive the auxiliary component 8 to rotate so that the auxiliary component 8 can adapt to the second card block 10 one by one to further vibrate and disperse the material, and the discharging component 5 is used to discharge the material out of the tank body 1.

[0034] In actual use, the material is poured into the inner cavity of the tank body 1 from the feeding component 4, the internal temperature of the tank body 1 is increased by the drying device 2, and the material is dried. The air in the tank body 1 is extracted by the vacuum pump 3 to create a vacuum environment, so that the pressure in the tank body 1 can be quickly reduced and the drying efficiency can be improved. The driving component 6 can drive the stirring component 7 to rotate, thereby stirring the material in the tank body 1 and making it dry more fully. When the stirring component 7 rotates, it can contact and adapt with its first clamping plate 9, so that the stirring component 7 can reciprocate up and down when rotating, so that it can vibrate the material in the tank body 1 and beat the condensed block material to break it up. The rotation of the stirring component 7 can drive the auxiliary component 8 to rotate, so that the auxiliary component 8 can contact and adapt with the second clamping block 10 when rotating, so that the auxiliary component 8 can reciprocate, further beating the condensed block material, avoiding affecting the drying effect and improving the quality of the premix.

[0035] The utility model can drive the stirring component 7 to rotate through the driving component 6, so that the stirring component 7 can stir the material in the tank body 1, and the stirring component 7 will also contact and adapt with its first clamping plate 9 when rotating, so that the stirring component 7 can also make up and down reciprocating motion while rotating, vibrating the material in the tank body 1 and beating the coagulated block material, and the rotation of the stirring component 7 can drive the auxiliary component 8 to rotate, so that the auxiliary component 8 can contact and adapt with the second clamping block 10 when rotating, so that the auxiliary component 8 can reciprocate, further beating the coagulated block material, and then breaking up the coagulated block material, avoiding affecting the effect of its drying treatment, making the drying uniform, and improving the quality of the film coating premix.

[0036] In one embodiment, for the above-mentioned feeding component 4, the feeding component 4 includes a feeding bin 11, the feeding bin 11 is installed on the upper surface of the tank body 1, and the feeding bin 11 is communicated with the inner cavity of the tank body 1, and a feeding baffle 12 is penetrated and slidably installed on the feeding bin 11, and the feeding baffle 12 can completely close the feeding bin 11, and a first handle 13 is installed on the feeding baffle 12.

[0037] By pulling the handle, the feed baffle 12 is slid out of the feed bin 11, and the material is poured into the tank body 1 through the feed bin 11. Then the feed baffle 12 is slidably installed in the feed bin 11, so that the feed bin 11 becomes sealed, preventing the heat inside the tank body 1 from dissipating to the outside through the feed bin 11, thereby improving the drying effect.

[0038] In one embodiment, for the above-mentioned drive assembly 6, the drive assembly 6 includes a motor 14, the motor 14 is installed on the upper surface of the tank body 1, and a drive shaft 15 is installed on the axis of the motor 14. The lower end of the drive shaft 15 passes through the tank body 1 and extends into the inner cavity. A cross rod 16 is installed at the lower end of the drive shaft 15, and several groups of fixed structures 17 are installed on the cross rod 16. The number of the fixed structures 17 is the same as that of the stirring assembly 7, and the fixed structure 17 includes an upper fixed plate 18 and a lower fixed plate 19.

[0039] The driving motor 14 can drive the driving shaft 15 to rotate, thereby driving the cross rod 16 to rotate, so that the stirring component 7 installed on its fixed structure 17 rotates, and then the stirring component 7 stirs the material in the inner cavity of the tank body 1 to fully blend it.

[0040] In one embodiment, for the above-mentioned stirring assembly 7, the stirring assembly 7 includes a cross stirring frame 20, and the cross stirring frame 20 is slidably installed on the cross rod 16, and the upper surface of the cross stirring frame 20 is in contact with the lower surface of the upper fixed plate 18, and the four ends of the cross stirring frame 20 are installed with a first inclined block 21, and the first clamping plate 9 is installed with a first clamping block 22, and the first clamping block 22 and the first inclined block 21 are adaptable. The stirring assembly 7 also includes a first spring 23, and the first spring 23 is installed around the cross rod 16, and the lower end of the first spring 23 is in contact with the upper surface of the lower fixed plate 19, and the upper end of the first spring 23 is in contact with the lower surface of the upper fixed plate 18.

[0041] The rotation of the cross rod 16 can drive the cross stirring frame 20 to rotate in the tank body 1, and mix and stir the materials in the tank body 1. When the cross stirring frame 20 rotates, the first inclined block 21 will contact the first clamping block 22 installed on the first clamping plate 9, thereby driving the cross stirring frame 20 to slide downward, and driving the first spring 23 to compress the downward fixed plate 19. When the first inclined block 21 no longer contacts the first clamping block 22, the elastic force of the first spring 23 is released and the cross stirring frame 20 is driven to return to its original position, so that the cross stirring frame 20 can reciprocate up and down during rotation, vibrate and beat the materials, break up the condensed block materials, and improve the quality of the material drying.

[0042] In one embodiment, for the above-mentioned auxiliary component 8, the auxiliary component 8 includes a fixing rod 24, both ends of which are mounted on a mounting plate 25, and the mounting plates 25 are mounted on the bottom surface of the cross stirring frame 20. A connecting plate 26 is passed through and slidably mounted on the fixing rod 24, and a second inclined block 27 is mounted at one end of the connecting plate 26, and the second inclined block 27 can be adapted to the second clamping block 10. A second spring 28 is mounted around the fixing rod 24, and one end of the second spring 28 is in contact with the mounting plate 25, and the other end of the second spring 28 is in contact with the surface of the connecting plate 26.

[0043] The rotation of the cross stirring frame 20 can drive the entire auxiliary component 8 to rotate, so that during the rotation, the second inclined block 27 will contact the second clamping block 10 installed on the inner wall of the tank body 1, so that the second inclined block 27 drives the connecting plate 26 to slide on the fixed rod 24, so that the second spring 28 is compressed toward the side mounting plate 25. When the second inclined block 27 is no longer in contact and adapted with the second clamping block 10, the elastic force of the second spring 28 is released and the second inclined block 27 is driven to return to its original position, thereby achieving the goal that the connecting plate 26 and the second inclined block 27 can slide back and forth on the fixed rod 24, and can further slap the condensed block material to improve the material drying effect and improve the quality of its film coating premix.

[0044] The utility model can drive the cross stirring frame 20 and the second inclined block 27 to rotate through the motor 14, so that the cross can be in contact with and adapted to the first clamping block 22 through rotation, so that the cross stirring frame 20 can reciprocate up and down during rotation, vibrate and beat the material, and break up the coagulated block material. Moreover, the second inclined block 27 can be in contact with and adapted to the second clamping block 10 through rotation, so that the connecting plate 26 and the second inclined block 27 can slide back and forth on the fixed rod 24, and can further beat the coagulated block material, thereby achieving the effect of improving the drying of the material, improving the quality of the film coating premix, and improving work efficiency.

[0045] In one embodiment, for the above-mentioned discharging component 5, the discharging component 5 includes a discharging bin 29, the discharging bin 29 is installed on the lower surface of the tank body 1, and the discharging bin 29 is communicated with the inner cavity of the tank body 1, and a discharging baffle 30 is penetrated and slidably installed on the discharging bin 29, and the discharging baffle 30 can completely close the discharging bin 29, and a second handle 31 is installed on the discharging baffle 30.

[0046] The discharge baffle 30 can completely close the discharge bin 29, so that the material inside the tank body 1 cannot be discharged from the discharge bin 29 to the outside, avoiding the undried material from leaking out of the discharge bin 29. When the material has been dried, the discharge baffle 30 can be slid out of the discharge bin 29 by pulling the second handle 31, so that the material can be discharged to the outside through the discharge bin 29, making it easier for workers to take out the material.

[0047] According to the above technical scheme of the utility model, the material is poured into the tank body 1 through the feeding bin 11, the temperature inside the tank body 1 is raised through the drying device 2 to dry the material, the air inside the tank body 1 is extracted through the vacuum pump 3 to create a vacuum environment, so that the pressure inside the tank body 1 can be quickly reduced and the drying efficiency is improved, the driving shaft 15 can be driven to rotate through the driving motor 14, so that the cross rod 16 is rotated, the cross stirring frame 20 installed on the fixed structure 17 is rotated, the material in the tank body 1 is stirred to fully mix, when the cross stirring frame 20 rotates, the first inclined block 21 contacts the first clamping block 22 installed on the first clamping plate 9, so that the cross stirring frame 20 slides downward, the first spring 23 is compressed toward the downward fixing plate 19, when the first inclined block 21 no longer contacts the first clamping block 22, the cross stirring frame 20 is driven to return to the original position under the elastic force release of the first spring 23, so that the cross stirring frame 20 can reciprocate up and down when rotating to vibrate and beat the material, the condensed blocky material can be broken up, the rotation of the cross stirring frame 20 can also drive the entire auxiliary assembly 8 to rotate, so that the second inclined block 27 contacts the second clamping block 10 installed on the inner wall of the tank body 1, the second inclined block 27 drives the connecting plate 26 to slide on the fixed rod 24, the second spring 28 is compressed toward the one side mounting plate 25, when the second inclined block 27 no longer contacts the second clamping block 10, the second inclined block 27 is driven to return to the original position under the elastic force release of the second spring 28, so that the connecting plate 26 and the second inclined block 27 can reciprocate on the fixed rod 24 to further beat the condensed blocky material, so that the material drying effect is improved, the quality of the film coating premix is improved, when the material is dried, the discharge baffle 30 can be pulled out of the discharge bin 29 through the second handle 31, so that the material can be discharged outside through the discharge bin 29, and the worker can take out the material.

[0048] Through the above technical solution, 1. The driving component 6 can drive the stirring component 7 to rotate, so that the stirring component 7 can stir the material in the tank body 1, and the stirring component 7 will also contact and adapt with its first clamping plate 9 when rotating, so that the stirring component 7 can also make up and down reciprocating motion while rotating, vibrating the material in the tank body 1 and beating the condensed block material, and the rotation of the stirring component 7 can drive the auxiliary component 8 to rotate, so that the auxiliary component 8 can contact and adapt with the second clamping block 10 when rotating, so that the auxiliary component 8 can reciprocate, further beating the condensed block material, and then breaking up the condensed block material to avoid affecting the effect of its drying process. The cross stirring frame 20 and the second inclined block 27 can be driven by the motor 14 to rotate, so that the cross can be adapted to contact with the first clamping block 22 by rotation, so that the cross stirring frame 20 can reciprocate up and down during rotation, vibrate and beat the material, and break up the condensed block material. The second inclined block 27 can also be adapted to contact with the second clamping block 10 by rotation, so that the connecting plate 26 and the second inclined block 27 can slide back and forth on the fixed rod 24, and can further beat the condensed block material, thereby achieving the effect of improving the material drying, improving the quality of the film coating premix, and improving work efficiency.

[0049] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0050] The preferred embodiments of the utility model disclosed above are intended only to help illustrate the utility model. The preferred embodiments do not describe all details in detail, nor do they limit the utility model to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. This specification selects and describes these embodiments in detail to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vacuum dryer for preparing a film coating premix, the tank body (1) being characterized in that: The upper end of the tank body (1) is equipped with a drying device (2), a vacuum pump (3), and a feeding assembly (4); the bottom of the tank body (1) is equipped with a discharging assembly (5); the inner cavity of the tank body (1) is equipped with a driving assembly (6); a plurality of stirring assemblies (7) are installed on the driving assembly (6); and auxiliary assemblies (8) are installed on each of the stirring assemblies (7); the inner wall of the tank body (1) is equipped with a plurality of groups of first clamping plates (9) and second clamping blocks (10); the number of the first clamping plates and the second clamping blocks (10) is the same as that of the stirring assemblies (7); The drying device (2) is used to provide the heat required for drying into the tank body (1); the vacuum pump (3) is used to extract the air in the tank body (1) to create a vacuum environment; the feeding component (4) is used to pour the material into the tank body (1); the driving component (6) is used to drive the stirring component (7) to rotate so as to stir the material inside the tank body (1) through the stirring component (7); and the stirring component (7) will be matched with the first card plate one by one when rotating to vibrate and disperse the material; and the stirring component (7) will drive the auxiliary component (8) to rotate so that the auxiliary component (8) is matched with the second card block (10) one by one to further vibrate and disperse the material; and the discharging component (5) is used to discharge the material out of the tank body (1).

2. The vacuum dryer for preparing a film coating premix according to claim 1, characterized in that: The feed assembly (4) includes a feed bin (11), the feed bin (11) is installed on the upper surface of the tank body (1), and the feed bin (11) is communicated with the inner cavity of the tank body (1), and a feed baffle (12) is passed through and slidably installed on the feed bin (11), and the feed baffle (12) can completely close the feed bin (11), and a first handle (13) is installed on the feed baffle (12).

3. The vacuum dryer for preparing a film coating premix according to claim 2, characterized in that: The driving assembly (6) includes a motor (14), which is mounted on the upper surface of the tank body (1). A driving shaft (15) is mounted on the axis of the motor (14). The lower end of the driving shaft (15) passes through the tank body (1) and extends into the inner cavity. A cross rod (16) is mounted on the lower end of the driving shaft (15). A plurality of fixed structures (17) are mounted on the cross rod (16). The number of the fixed structures (17) is the same as that of the stirring assembly (7). The fixed structures (17) include an upper fixed plate (18) and a lower fixed plate (19).

4. The vacuum dryer for preparing a film coating premix according to claim 3, characterized in that: The stirring assembly (7) includes a cross stirring frame (20), which is slidably installed on the cross rod (16), and the upper surface of the cross stirring frame (20) is in contact with the lower surface of the upper fixed plate (18). The four ends of the cross stirring frame (20) are installed with a first inclined block (21), and the first clamping block (22) is installed on the first clamping plate (9). The first clamping block (22) and the first inclined block (21) are compatible. The stirring assembly (7) also includes a first spring (23), which is installed around the cross rod (16), the lower end of the first spring (23) is in contact with the upper surface of the lower fixed plate (19), and the upper end of the first spring (23) is in contact with the lower surface of the upper fixed plate (18).

5. The vacuum dryer for preparing a film coating premix according to claim 4, characterized in that: The auxiliary component (8) includes a fixed rod (24), both ends of the fixed rod (24) are mounted on a mounting plate (25), the mounting plate (25) is mounted on the bottom surface of the cross stirring frame (20), a connecting plate (26) is passed through and slidably mounted on the fixed rod (24), a second inclined block (27) is mounted on one end of the connecting plate (26), the second inclined block (27) can be adapted to the second clamping block (10), a second spring (28) is mounted around the fixed rod (24), one end of the second spring (28) is in contact with the mounting plate (25), and the other end of the second spring (28) is in contact with the surface of the connecting plate (26).

6. A vacuum dryer for preparing a film coating premix according to claim 5, characterized in that: The discharge assembly (5) includes a discharge bin (29), the discharge bin (29) is installed on the lower surface of the tank body (1), and the discharge bin (29) is communicated with the inner cavity of the tank body (1), and a discharge baffle (30) is passed through and slidably installed on the discharge bin (29), and the discharge baffle (30) can completely close the discharge bin (29), and a second handle (31) is installed on the discharge baffle (30).

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