Single-double three-layer efficient interchange type multifunctional tablet press

Abstract

The single-double three-layer efficient interchange type multifunctional tablet press comprises a base, a top plate is connected to the four corners of the upper portion of the base through stand columns, the upper end of a large pressing wheel stand column assembly is detachably fixed to the lower surface of the top plate, and the lower end of the large pressing wheel stand column assembly is detachably fixed to the upper surface of the base; the lower ends of the small pressing wheel stand column assemblies are detachably fixed to the upper surface of the base, the lower ends of the metering mechanisms are detachably arranged on the upper surface of the base, the feeders are arranged above the metering mechanisms, and the number of the large pressing wheel stand column assemblies, the number of the small pressing wheel stand column assemblies, the number of the metering mechanisms and the number of the feeders are not set or set into one or more sets according to the tabletting structure. The upper guide rail model and the lower guide rail model are adjusted according to the tabletting structure. The high-integration modular design is adopted, the replacement function is simplified, replacement is convenient, the production cost is reduced, the production efficiency is improved, the labor intensity is reduced, and the small tablet press breaks through the problem that single / double / three-layer tablets cannot be pressed at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of pharmaceutical equipment, and in particular relates to a single-layer, double-layer and three-layer high-efficiency interchangeable multifunctional tablet press. Background Art

[0002] With the continuous development of mechanical equipment in the pharmaceutical field, people have higher and higher requirements for tablet presses. Tablet presses are machines that press dry granular powder or powdered materials into tablets through a mold. They are mainly used in chemical and pharmaceutical related industries. They can be divided into single-layer tablets and multi-layer tablets according to their structure.

[0003] At present, single-layer tablets are made by single-layer tablet presses, and multi-layer tablets are made by multi-layer tablet presses. When a unit needs to prepare single-layer tablets and double-layer tablets, it often needs to purchase multiple machines, which occupies a large area and has high investment costs. At present, there is a lack of tablet presses on the market that can simultaneously press single-layer, double-layer, and triple-layer tablets and have convenient function switching to meet the production of tablets of various specifications and realize multiple uses of one machine. Summary of the invention

[0004] The problem to be solved by the present invention is to provide a single-layer, double-layer and three-layer efficient interchangeable multifunctional tablet press, which is particularly simple in structure and easy to operate, so that the single-discharge tablet press is not only suitable for the production of single-layer tablets, but also suitable for the production of double-layer tablets and three-layer tablets, thus realizing one machine with multiple uses. At the same time, it ensures the convenience of users in changing different functions, reduces production costs, improves users' work efficiency and reduces labor intensity.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a single-double-three-layer high-efficiency interchangeable multifunctional tablet press, comprising a base, the base is a square frame, a boss through hole is provided at the center of the base, a main shaft is provided in the boss through hole, the main shaft placed on the upper surface of the base is coaxially sleeved with a lower turntable, a tablet pressing disk and an upper turntable from bottom to top, a lower punch is provided in the lower turntable, an upper punch is provided in the upper turntable, an upper guide rail is provided above the upper punch, and the upper punch moves up and down along the upper guide rail The lower punch is provided with a lower guide rail below, and the lower punch moves up and down along the lower guide rail. The four corners of the upper part of the base are connected to the top plate by columns. A large pressure wheel column assembly and a small pressure wheel column assembly are provided between the base and the top plate. The large pressure wheel column assembly includes an upper large pressure wheel and a lower large pressure wheel, and the small pressure wheel column assembly includes an upper small pressure wheel and a lower small pressure wheel. The upper large pressure wheel and the upper small pressure wheel are both placed above the upper turntable, and the upper large pressure wheel and the upper small pressure wheel squeeze the upper punch downward. The cam is provided with a plurality of rollers, the plurality of rollers are provided with a plurality of rollers, the plurality of rollers are provided with a plurality of rollers, the plurality of rollers are provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers.

[0006] Furthermore, when pressing a single-layer tablet, the number of the large pressing wheel column assemblies is two groups, the small pressing wheel column assembly is not set, the number of the metering mechanisms is one group, the number of the feeders is one group, the upper guide rail is the upper guide rail for the single-layer tablet, and the lower guide rail is the lower guide rail for the single-layer tablet.

[0007] Furthermore, the two groups of large pressure wheel column assemblies are respectively arranged at the 11 o'clock direction and the 1 o'clock direction, and the two groups of large pressure wheel column assemblies are symmetrically distributed with the main axis as the center, and the angle between the two groups of upper large pressure wheel axes is 78°.

[0008] Furthermore, when pressing double-layer tablets, the number of large pressing wheel column assemblies is one group, the number of small pressing wheel column assemblies is one group, the number of metering mechanisms is two groups, the number of feeders is two groups, the upper guide rail is the upper guide rail for double-layer tablets, and the lower guide rail is the lower guide rail for double-layer tablets.

[0009] Furthermore, the large pressure wheel column assembly is arranged at the 11 o'clock direction, and the angle between the axis of the upper large pressure wheel and the vertical line of the upper surface of the base is 39°; the small pressure wheel column assembly is arranged at the 5 o'clock direction, and the angle between the axis of the upper small pressure wheel and the vertical line of the upper surface of the base is 15°; the large pressure wheel column assembly and the small pressure wheel column assembly are respectively placed on both sides of the vertical line of the upper surface of the base; one group of the metering mechanisms is arranged at the 7 o'clock direction, and the angle between it and the axis of the upper small pressure wheel is 40°, and the two are respectively placed on both sides of the vertical line of the upper surface of the base; another group of the metering mechanisms is arranged at the 3 o'clock direction, and the angle between it and the axis of the upper small pressure wheel is 80°, and the two are respectively placed on the same side of the vertical line of the upper surface of the base; the two groups of the feeders are respectively placed above the two groups of the metering mechanisms, and the angle between the central axes of the two groups of the feeders is 105°.

[0010] Furthermore, when pressing three-layer tablets, the number of large pressing wheel column assemblies is one group, the number of small pressing wheel column assemblies is two groups, the number of metering mechanisms is three groups, the number of feeders is three groups, the upper guide rail is the upper guide rail for the three-layer tablet, and the lower guide rail is the lower guide rail for the three-layer tablet.

[0011] Furthermore, the large pressure wheel column assembly is arranged at the 1 o'clock direction, the angle between the axis of the upper large pressure wheel and the vertical line of the upper surface of the base is 39°, a group of small pressure wheel column assemblies are arranged at the 5 o'clock direction, the angle between the axis of the upper small pressure wheel and the vertical line of the upper surface of the base is 15°, the large pressure wheel column assembly and the small pressure wheel column assembly are placed on the same side of the vertical line of the upper surface of the base, another group of small pressure wheel column assemblies are arranged at the 8 o'clock direction, at the other end of the vertical line of the upper surface of the base, the angle between the two groups of small pressure wheel column assemblies is 102°, the first group of metering mechanisms are placed between the two groups of small pressure wheels The wheel column assembly is arranged at 7 o'clock, and the angle between it and the vertical line of the upper surface of the base is 20°. The second group of metering mechanisms is arranged at 11 o'clock, on the same side of the vertical line of the upper surface of the base as the first group of metering mechanisms, and the angle between the second group of metering mechanisms and the vertical line of the upper surface of the base is 40°. The third group of metering mechanisms is arranged at 3 o'clock, on both sides of the vertical line of the upper surface of the base with the first group of metering mechanisms, and the angle between the third group of metering mechanisms and the second group of metering mechanisms is 120°. The three groups of feeders are respectively placed above the three groups of metering mechanisms.

[0012] Furthermore, the large pressure wheel column assembly also includes a large pressure wheel column, the large pressure wheel column is a cylinder, the upper large pressure wheel and the lower large pressure wheel are respectively mounted on the outer cylindrical surface of the large pressure wheel column, the upper surface of the large pressure wheel column and the lower surface of the large pressure wheel column are respectively provided with threaded holes, the lower surface of the top plate is provided with a first through hole, the bolt passes through the first through hole and is connected to the threaded hole to fix the upper surface of the large pressure wheel column, the upper surface of the base is provided with a large pressure wheel fixing hole, the bolt passes through the large pressure wheel fixing hole and is connected to the threaded hole to fix the lower surface of the large pressure wheel column.

[0013] Furthermore, the small pressure wheel column assembly also includes a small pressure wheel column, which is a cylinder, and a cavity is provided inside the small pressure wheel column, a connecting shaft is provided in the cavity, a pressure sensor is provided on the top of the connecting shaft, and the upper and lower ends of the connecting shaft are respectively connected to two connecting pieces, the upper small pressure wheel and the lower small pressure wheel are respectively connected to the two connecting pieces through two roller bearings, the upper small pressure wheel and the lower small pressure wheel are placed on the side of the small pressure wheel column, a fixed base is provided at the bottom of the small pressure wheel column, a motor and a coupling are provided inside the fixed base that are connected to each other, the coupling is connected to the connecting shaft, a displacement sensor is provided in the fixed base near the lower small pressure wheel, a second through hole is provided on the circumference of the fixed base, a small pressure wheel fixing hole is provided on the upper surface of the base, the small pressure wheel fixing hole is aligned with the second through hole, and is fixed by bolts.

[0014] Furthermore, the metering mechanism includes a shell, the cross-section of the shell is "L"-shaped, a servo motor reducer is provided at the horizontal bottom portion of the shell, the servo motor reducer is connected to a lead screw through a thrust ball bearing, the lead screw is connected to a support column, a metering guide rail is provided above the support column, the lead screw and the support column are both placed in the vertical portion of the shell, a displacement sensor is provided at the metering guide rail, a connecting hole is provided on the bottom surface of the horizontal portion of the shell, a metering mechanism fixing hole is provided on the upper surface of the base, the metering mechanism fixing hole is aligned with the connecting hole and fixed by bolts.

[0015] The advantages and positive effects of the present invention are: The present invention has a simple structure and is easy to operate. It overcomes the shortcomings of existing single-discharge tablet presses and successfully realizes the function of a single-discharge device for pressing single-, double-, and triple-layer tablets. It also adopts a highly integrated modular design, making the originally complicated replacement function simple and convenient. Equipment users can easily complete the exchange without the assistance of others, which reduces production costs while improving overall production efficiency and reducing labor intensity, so that small tablet presses can break through the difficult problem of not being able to press single / double / triple-layer tablets at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 It is a schematic structural diagram of a large pressure wheel column assembly according to an embodiment of the present invention.

[0018] Figure 3 It is a schematic structural diagram of a small pressure wheel column assembly according to an embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the metering mechanism structure during compression of a double-layer tablet according to an embodiment of the present invention.

[0020] Figure 5 Schematic diagram of the metering mechanism structure during compression of a three-layer tablet according to an embodiment of the present invention.

[0021] Figure 6 This is a schematic diagram of the installation of various components when compressing a single-layer tablet according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of the installation of various components when compressing a double-layer tablet according to an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the installation of various components when compressing a three-layer tablet according to an embodiment of the present invention.

[0024] In the figure: 1. Top plate; 2. Upper turntable; 3. Pressing plate; 4. Column; 5. Lower turntable; 6. Spindle; 7. Base; 8. Transmission mechanism; 9. Stand; 10. Bottom plate; 11. Upper large pressure wheel; 12. Large pressure wheel column; 13. Lower large pressure wheel; 14. Threaded hole; 15. Upper small pressure wheel; 16. Small pressure wheel column; 17. Lower small pressure wheel; 18. Displacement sensor; 19. Coupling; 20. Motor; 21. Pressure sensor; 22. Connecting shaft; 23. Connecting piece; 24. Fixed base; 25. Second through hole; 26. Measuring guide rail; 27. Connecting hole; 28. Support column; 29. ​​Lead screw; 30. Thrust ball bearing; 31. Servo motor reducer; 32. Housing; 33. Large pressure wheel column assembly; 34. Feeder; 35. Measuring mechanism; 36. Small pressure wheel column assembly. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The embodiments of the present invention are further described below in conjunction with the accompanying drawings: like Figure 1As shown, a single-double-three-layer high-efficiency interchangeable multifunctional tablet press includes a base 7, which is a square frame. A boss through hole is provided at the center of the base 7, and a main shaft 6 is provided in the boss through hole. The main shaft 6 placed on the upper surface of the base 7 is coaxially sleeved with a lower turntable 5, a tablet pressing disk 3 and an upper turntable 2 from bottom to top. A lower punch is provided in the lower turntable 5, and an upper punch is provided in the upper turntable 2. An upper guide rail is provided above the upper punch, and the upper punch moves up and down along the upper guide rail. A lower guide rail is provided below the lower punch, and the lower punch moves up and down along the lower guide rail. The top plate 1 is connected to the top four corners of the base 7 through columns 4, and a large pressure wheel column assembly 33 and a small pressure wheel column assembly 36 are provided between the base 7 and the top plate 1. The large pressure wheel column assembly 33 includes an upper large pressure wheel 11 and a lower large pressure wheel 13, and the small pressure wheel column assembly 36 includes an upper small pressure wheel 15 and a lower small pressure wheel 17. The upper large pressure wheel 11 and the upper small pressure wheel 15 are both placed above the upper turntable 2, and the upper large pressure wheel 11 and the upper small pressure wheel 15 squeeze the upper punch downward. The lower large pressure wheel 13 and the lower small pressure wheel 17 are both placed below the lower turntable 5, and the lower large pressure wheel 13 and the lower small pressure wheel 17 squeeze the lower punch upward. The upper end of the large pressure wheel column assembly 33 is detachably fixed to the lower surface of the top plate 1, the lower end of the large pressure wheel column assembly 33 is detachably fixed to the upper surface of the base 7, and the lower end of the small pressure wheel column assembly 36 is detachably fixed to the upper surface of the base 7. A metering mechanism 35 is provided on the side of the boss through hole, and the lower end of the metering mechanism 35 is detachably arranged on the upper surface of the base 7. A feeder 34 is provided above the metering mechanism 35, and the lower end of the feeder 34 is connected to the upper end of the column, and the lower end of the column is detachably fixed to the upper surface of the base 7. The lower part of the base 7 is connected to the bottom plate 10 through the stand 9, and the lower end of the main shaft 6 is connected to the transmission mechanism 8, and the transmission mechanism 8 is placed in the space of the stand 9. The number of large pressure wheel column assemblies 33, the number of small pressure wheel column assemblies 36, the number of metering mechanisms 35 and the number of feeders 34 are not provided or provided as one or more groups according to the tablet pressing structure, and the upper guide rail model and the lower guide rail model are adjusted according to the tablet pressing structure.

[0029] Specifically, Figure 2 As shown, the large pressing wheel column assembly 33 also includes a large pressing wheel column 12, which is a cylindrical body. The upper large pressing wheel 11 and the lower large pressing wheel 13 are respectively sleeved on the outer cylindrical surface of the large pressing wheel column 12, and the upper surface of the large pressing wheel column 12 and the lower surface of the large pressing wheel column 12 are respectively provided with threaded holes 14. A first through hole is provided on the lower surface of the top plate 1, and a bolt passes through the first through hole and is connected with the threaded hole 14 to fix the upper surface of the large pressing wheel column 12. A large pressing wheel fixing hole is provided on the upper surface of the base 7, and a bolt passes through the large pressing wheel fixing hole and is connected with the threaded hole 14 to fix the lower surface of the large pressing wheel column 12. When in use, the transmission mechanism 8 drives the upper large pressing wheel 11 and the lower large pressing wheel 13 to rotate, and the upper large pressing wheel 11 presses the upper punch downward, and the lower large pressing wheel 13 presses the lower punch upward, and the upper punch and the lower punch move relative to each other to achieve tablet extrusion molding.

[0030] like Figure 3As shown, the small pressure wheel column assembly 36 also includes a small pressure wheel column 16, which is a cylinder. A cavity is provided inside the small pressure wheel column 16, and a connecting shaft 22 is provided inside the cavity. A pressure sensor 21 is provided on the top of the connecting shaft 22. The upper and lower ends of the connecting shaft 22 are respectively connected to two connecting pieces 23, and the upper small pressure wheel 15 and the lower small pressure wheel 17 are respectively connected to the two connecting pieces 23 through two roller bearings. The upper small pressure wheel 15 and the lower small pressure wheel 17 are placed on the side of the small pressure wheel column 16, and a fixed base 24 is provided at the bottom of the small pressure wheel column 16. A motor 20 and a coupling 19 connected to each other are provided inside the fixed base 24. The coupling 19 is connected to the connecting shaft 22. A displacement sensor 18 is provided in the fixed base 24 near the lower small pressure wheel 17. A second through hole 25 is provided on the circumference of the fixed base 24. A small pressure wheel fixing hole is provided on the upper surface of the base 7. The small pressure wheel fixing hole is aligned with the second through hole 25 and fixed by bolts. When in use, the upper small pressing wheel 15 presses the upper punch downward, and the lower small pressing wheel 17 presses the lower punch upward, and the upper punch and the lower punch move relative to each other to achieve tablet extrusion molding. The small pressing wheel column assembly 36 has the same function as the large pressing wheel column assembly 33, and the volume of the small pressing wheel column assembly 36 is smaller than that of the large pressing wheel column assembly 33, saving space.

[0031] like Figure 4 , Figure 5 As shown, the metering mechanism 35 includes a housing 32, the cross section of the housing 32 is "L" shaped, and a servo motor reducer 31 is provided at the horizontal bottom of the housing 32. The servo motor reducer 31 is connected to the lead screw 29 through a thrust ball bearing 30, and the lead screw 29 is connected to the support column 28. A metering guide rail 26 is provided above the support column 28. The lead screw 29 and the support column 28 are both placed in the vertical part of the housing 32, and a displacement sensor 18 is provided at the metering guide rail 26. A connecting hole 27 is provided on the bottom surface of the horizontal part of the housing 32, and a metering mechanism fixing hole is provided on the upper surface of the base 7. The metering mechanism fixing hole is aligned with the connecting hole 27 and fixed by bolts. When in use, the servo motor reducer 31 pushes the support column 28 upward or pulls it downward through the lead screw 29, so that the height of the metering guide rail 26 changes, and the lower punch passes over the metering guide rail 26. The height of the lower punch affects the filling amount of the powder.

[0032] Preferably, when processing the double-layer tablet in this embodiment, the following is provided: Figure 4 The metering mechanism 35 shown in the embodiment provides the following when processing three-layer tablets: Figure 5 The metering mechanism 35 is shown.

[0033] like Figure 6As shown, when pressing a single-layer tablet, the number of large pressing wheel column assemblies 33 is two groups, the small pressing wheel column assembly 36 is not set, the number of metering mechanisms 35 is one group, the number of feeders 34 is one group, the upper guide rail is the upper guide rail for single-layer tablets, and the lower guide rail is the lower guide rail for single-layer tablets. Specifically, the two groups of large pressing wheel column assemblies 33 are symmetrically distributed with the main shaft 6 as the center, the two groups of upper large pressing wheels 11 are respectively at 11 o'clock and 1 o'clock, the angle between the axes of the two groups of upper large pressing wheels 11 is 78°, a group of metering mechanisms 35 is placed at the 5 o'clock direction, and the angle between the vertical line of the upper surface of the base 7 is 30°, and a group of feeders 34 is placed above the metering mechanism 35.

[0034] like Figure 7 As shown, when pressing a double-layer tablet, the number of large pressing wheel column assemblies 33 is one group, the number of small pressing wheel column assemblies 36 is one group, the number of metering mechanisms 35 is two groups, the number of feeders 34 is two groups, the upper guide rail is the upper guide rail for double-layer tablets, and the lower guide rail is the lower guide rail for double-layer tablets. Specifically, the large pressing wheel column assembly 33 is placed at the 11 o'clock direction, the angle between the axis of the upper large pressing wheel 11 and the vertical line of the upper surface of the base 7 is 39°, the small pressing wheel column assembly 36 is placed at the 5 o'clock direction, the angle between the axis of the upper small pressing wheel 15 and the vertical line of the upper surface of the base 7 is 15°, and the large pressing wheel column assembly 33 and the small pressing wheel column assembly 36 are respectively placed on both sides of the vertical line of the upper surface of the base 7. A group of metering mechanisms 35 is placed at the 7 o'clock direction, and the angle between it and the axis of the small pressing wheel is 40°, and the two are respectively placed on both sides of the vertical line of the upper surface of the base 7. Another set of metering mechanisms 35 is placed at 3 o'clock, with an angle of 80° between the axis of the small pressure wheel, and the two are placed on the same side of the vertical line of the upper surface of the base 7. Two sets of feeders 34 are placed above the two sets of metering mechanisms 35, and the angle between the central axes of the two sets of feeders 34 is 105°.

[0035] like Figure 8As shown, when pressing three layers of tablets, the number of large press wheel column assemblies 33 is one group, the number of small press wheel column assemblies 36 is two groups, the number of metering mechanisms 35 is three groups, the number of feeders 34 is three groups, the upper guide rail is the upper guide rail of the three-layer tablet, and the lower guide rail is the lower guide rail of the three-layer tablet. Specifically, the large press wheel column assembly 33 is placed at 1 o'clock, and the angle between the axis of the upper large press wheel 11 and the vertical line of the upper surface of the base 7 is 39°. A group of small press wheel column assemblies 36 is placed at 5 o'clock, and the angle between the axis of the upper small press wheel 15 and the vertical line of the upper surface of the base 7 is 15°. The large press wheel column assembly 33 and the small press wheel column assembly 36 are placed on the same side of the vertical line of the upper surface of the base 7. Another group of small press wheel column assemblies 36 are placed at 8 o'clock, located on the other side of the vertical line of the upper surface of the base 7, and the angle between the two groups of small press wheel column assemblies 36 is 102°. The first group of metering mechanisms 35 is placed between the two groups of small pressure wheel column assemblies 36, located at the 7 o'clock direction, and the angle between it and the vertical line of the upper surface of the base 7 is 20°. The second group of metering mechanisms 35 and the first group of metering mechanisms 35 are placed on the same side of the vertical line of the upper surface of the base 7, located at the 11 o'clock direction, and the angle between the second group of metering mechanisms 35 and the vertical line of the upper surface of the base 7 is 40°. The third group of metering mechanisms 35 is located at the 3 o'clock direction, and is placed on both sides of the vertical line of the upper surface of the base 7 with the first group of metering mechanisms 35, and the angle between the third group of metering mechanisms 35 and the second group of metering mechanisms 35 is 120°. The three groups of feeders 34 are respectively placed above the three groups of metering mechanisms 35.

[0036] The advantages and positive effects of the present invention are: The present invention has a simple structure and is easy to operate. It overcomes the shortcomings of existing single-discharge tablet presses and successfully realizes the function of a single-discharge device for pressing single-, double-, and triple-layer tablets. It also adopts a highly integrated modular design, making the originally complicated replacement function simple and convenient. Equipment users can easily complete the exchange without the assistance of others, which reduces production costs while improving overall production efficiency and reducing labor intensity, so that small tablet presses can break through the difficult problem of not being able to press single / double / triple-layer tablets at the same time.

[0037] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A single-layer, double-layer and three-layer high-efficiency interchangeable multifunctional tablet press, characterized in that: The base comprises a square frame, a boss through hole is arranged at the center of the base, a main shaft is arranged in the boss through hole, a lower turntable, a tablet pressing disk and an upper turntable are coaxially sleeved in sequence from bottom to top on the main shaft arranged on the upper surface of the base, a lower punch is arranged in the lower turntable, an upper punch is arranged in the upper turntable, an upper guide rail is arranged above the upper punch, the upper punch moves up and down along the upper guide rail, a lower guide rail is arranged below the lower punch, and the lower punch moves up and down along the lower guide rail The four corners of the upper part of the base are connected to the top plate by columns, and a large pressure wheel column assembly and a small pressure wheel column assembly are arranged between the base and the top plate, the large pressure wheel column assembly includes an upper large pressure wheel and a lower large pressure wheel, and the small pressure wheel column assembly includes an upper small pressure wheel and a lower small pressure wheel, the upper large pressure wheel and the upper small pressure wheel are both placed above the upper turntable, the upper large pressure wheel and the upper small pressure wheel squeeze the upper punch downward, and the lower large pressure wheel and the lower small pressure wheel are both placed in The cam is configured to move the large and small pressure wheels upwardly to squeeze the lower punch through the large pressure wheel and the small and small pressure wheels, and the upper end of the large pressure wheel column assembly is detachably fixed to the lower surface of the top plate, and the lower end of the large pressure wheel column assembly is detachably fixed to the upper surface of the base, and the lower end of the small pressure wheel column assembly is detachably fixed to the upper surface of the base, and a metering mechanism is provided on the side of the boss through-hole, and the lower end of the metering mechanism is detachably arranged on the upper surface of the base, and a feeder is provided above the metering mechanism. The lower end of the feeder is connected to the upper end of the column, and the lower end of the column is detachably fixed to the upper surface of the base, and the lower part of the base is connected to the bottom plate through a frame, and the lower end of the main shaft is connected to the transmission mechanism, and the transmission mechanism is placed in the frame space. The number of the large pressure wheel column assemblies, the number of the small pressure wheel column assemblies, the number of the metering mechanisms, and the number of the feeders are not set or set to one or more groups according to the tabletting structure, and the upper guide rail model and the lower guide rail model are adjusted according to the tabletting structure.

2. The single-layer, double-layer and three-layer high-efficiency interchangeable multifunctional tablet press according to claim 1, characterized in that: When pressing a single-layer tablet, the number of the large pressing wheel column assemblies is two groups, the small pressing wheel column assembly is not set, the number of the metering mechanisms is one group, the number of the feeders is one group, the upper guide rail is the upper guide rail for the single-layer tablet, and the lower guide rail is the lower guide rail for the single-layer tablet.

3. The single-layer, double-layer and three-layer high-efficiency interchangeable multifunctional tablet press according to claim 2, characterized in that: The two groups of large pressure wheel column assemblies are respectively arranged at the 11 o'clock direction and the 1 o'clock direction, and the two groups of large pressure wheel column assemblies are symmetrically distributed with the main axis as the center, and the angle between the two groups of upper large pressure wheel axes is 78°.

4. A single-layer, double-layer, three-layer high-efficiency interchangeable multifunctional tablet press according to any one of claims 1 to 3, characterized in that: When pressing double-layer tablets, the number of the large pressing wheel column assemblies is one group, the number of the small pressing wheel column assemblies is one group, the number of the metering mechanisms is two groups, the number of the feeders is two groups, the upper guide rail is the upper guide rail for double-layer tablets, and the lower guide rail is the lower guide rail for double-layer tablets.

5. The single-, double- and three-layer high-efficiency interchangeable multifunctional tablet press according to claim 4, characterized in that: The large pressure wheel column assembly is arranged at the 11 o'clock direction, and the angle between the axis of the upper large pressure wheel and the vertical line of the upper surface of the base is 39°. The small pressure wheel column assembly is arranged at the 5 o'clock direction, and the angle between the axis of the upper small pressure wheel and the vertical line of the upper surface of the base is 15°. The large pressure wheel column assembly and the small pressure wheel column assembly are respectively placed on both sides of the vertical line of the upper surface of the base. One group of the metering mechanisms is arranged at the 7 o'clock direction, and the angle between it and the axis of the upper small pressure wheel is 40°. The two are respectively placed on both sides of the vertical line of the upper surface of the base. Another group of the metering mechanisms is arranged at the 3 o'clock direction, and the angle between it and the axis of the upper small pressure wheel is 80°. The two are respectively placed on the same side of the vertical line of the upper surface of the base. The two groups of the feeders are respectively placed above the two groups of the metering mechanisms, and the angle between the central axes of the two groups of the feeders is 105°.

6. A single-layer, double-layer, three-layer high-efficiency interchangeable multifunctional tablet press according to any one of claims 1 to 3, characterized in that: When pressing three-layer tablets, the number of the large pressing wheel column assemblies is one group, the number of the small pressing wheel column assemblies is two groups, the number of the metering mechanisms is three groups, the number of the feeders is three groups, the upper guide rail is the upper guide rail for the three-layer tablet, and the lower guide rail is the lower guide rail for the three-layer tablet.

7. The single-, double- and three-layer high-efficiency interchangeable multifunctional tablet press according to claim 6, characterized in that: The large pressure wheel column assembly is arranged at the 1 o'clock direction, and the angle between the axis of the upper large pressure wheel and the vertical line of the upper surface of the base is 39°. A group of small pressure wheel column assemblies is arranged at the 5 o'clock direction, and the angle between the axis of the upper small pressure wheel and the vertical line of the upper surface of the base is 15°. The large pressure wheel column assembly and the small pressure wheel column assembly are placed on the same side of the vertical line of the upper surface of the base. Another group of small pressure wheel column assemblies is arranged at the 8 o'clock direction, at the other end of the vertical line of the upper surface of the base. The angle between the two groups of small pressure wheel column assemblies is 102°. The first group of metering mechanisms is placed between the two groups of small pressure wheel columns. The column assemblies are arranged at 7 o'clock, and the angle between them and the vertical line of the upper surface of the base is 20°. The second group of metering mechanisms is arranged at 11 o'clock, and is placed on the same side of the vertical line of the upper surface of the base as the first group of metering mechanisms, and the angle between the second group of metering mechanisms and the vertical line of the upper surface of the base is 40°. The third group of metering mechanisms is arranged at 3 o'clock, and is placed on both sides of the vertical line of the upper surface of the base with the first group of metering mechanisms, and the angle between the third group of metering mechanisms and the second group of metering mechanisms is 120°. The three groups of feeders are respectively placed above the three groups of metering mechanisms.

8. A single-layer, double-layer, three-layer high-efficiency interchangeable multifunctional tablet press according to any one of claims 1 to 3, characterized in that: The large pressure wheel column assembly also includes a large pressure wheel column, which is a cylinder. The upper large pressure wheel and the lower large pressure wheel are respectively mounted on the outer cylindrical surface of the large pressure wheel column. The upper surface of the large pressure wheel column and the lower surface of the large pressure wheel column are respectively provided with threaded holes. The lower surface of the top plate is provided with a first through hole. The bolt passes through the first through hole and is connected to the threaded hole to fix the upper surface of the large pressure wheel column. The upper surface of the base is provided with a large pressure wheel fixing hole. The bolt passes through the large pressure wheel fixing hole and is connected to the threaded hole to fix the lower surface of the large pressure wheel column.

9. A single-layer, double-layer, three-layer high-efficiency interchangeable multifunctional tablet press according to any one of claims 1 to 3, characterized in that: The small pressure wheel column assembly also includes a small pressure wheel column, which is a cylinder. A cavity is provided inside the small pressure wheel column, a connecting shaft is provided in the cavity, a pressure sensor is provided on the top of the connecting shaft, and the upper and lower ends of the connecting shaft are respectively connected to two connecting pieces, the upper small pressure wheel and the lower small pressure wheel are respectively connected to the two connecting pieces through two roller bearings, the upper small pressure wheel and the lower small pressure wheel are placed on the side of the small pressure wheel column, a fixed base is provided at the bottom of the small pressure wheel column, a motor and a coupling are provided inside the fixed base that are connected to each other, the coupling is connected to the connecting shaft, a displacement sensor is provided in the fixed base near the lower small pressure wheel, a second through hole is provided on the circumference of the fixed base, a small pressure wheel fixing hole is provided on the upper surface of the base, the small pressure wheel fixing hole is aligned with the second through hole and fixed by bolts.

10. A single-layer, double-layer, three-layer high-efficiency interchangeable multifunctional tablet press according to any one of claims 1 to 3, characterized in that: The metering mechanism includes a shell, the cross-section of the shell is "L"-shaped, a servo motor reducer is provided at the horizontal bottom portion of the shell, the servo motor reducer is connected to a lead screw through a thrust ball bearing, the lead screw is connected to a support column, a metering guide rail is provided above the support column, the lead screw and the support column are both placed in the vertical portion of the shell, a displacement sensor is provided at the metering guide rail, a connecting hole is provided on the bottom surface of the horizontal portion of the shell, a metering mechanism fixing hole is provided on the upper surface of the base, the metering mechanism fixing hole is aligned with the connecting hole and fixed by bolts.

Images