Multi-shaft calendering device for producing medicinal hard tablets

Abstract

The invention relates to the technical field of calendering devices, and provides a multi-shaft calendering device for medicinal hard sheet production, the multi-shaft calendering device comprises a calendering machine box, an extrusion device and a conveying and rolling device, the two sides of the calendering machine box are respectively provided with a feeding end and a discharging end, a plurality of calendering shaft bodies are arranged in the calendering machine box, the feeding end of the calendering machine box is communicated with the extrusion device, and the discharging end of the calendering machine box is communicated with the conveying and rolling device. The sheet conveying structure has an overturning function, the sheet conveying structure is arranged between the discharging end of the calendering machine box and the conveying and winding device and used for moving plastic sheets discharged at different heights to the conveying and winding device, and the adjusting rack is fixedly connected into the calendering machine box and used for adjusting the height of the plastic sheets discharged at different heights to the conveying and winding device. A sheet guiding assembly is longitudinally arranged on the side, close to the rolling shaft body, of the adjusting rack in a sliding mode. By means of the technical scheme, the problem that in the prior art, when a multi-shaft calendering device is inconsistent according to transmission calendering paths, plastic sheets discharged at different height positions are difficult to guide and convey is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of calendering devices, and in particular to a multi-axis calendering device for producing medicinal hard tablets. Background Art

[0002] Pharmaceutical hard tablets are plastic items used in real life to package hard tablets or capsules for storage and transportation. In the production process of pharmaceutical hard tablets, polyvinyl chloride plastic raw materials need to be added to the extruder equipment first. The extruder equipment melts the plastic raw materials and extrude the plastic melt into a multi-axis calendering device, which gradually squeezes the plastic melt into plastic sheets, and finally uses the plastic sheets as pharmaceutical hard tablets.

[0003] The multi-axis calendering device in the prior art is connected to the extruder equipment. A plurality of rotatable calendering shafts are arranged in the multi-axis calendering device. Each calendering shaft is heated by oil or water so that the outer surface of the calendering shaft has a certain temperature. In addition, the spacing between the multiple calendering shafts is not consistent. The working principle of the multi-axis calendering device is to allow the plastic melt to pass through two calendering shafts with different spacings from large to small in sequence, complete the calendering operation of the plastic melt, and make it into plastic sheets.

[0004] However, the required thickness of pharmaceutical hard tablets of different specifications varies to a certain extent. According to the different subsequent uses of the plastic sheets, the plastic melt is generally made into plastic sheets or thinner plastic films, which leads to certain differences in the areas where the plastic melt moves in the calendering device, which causes the plastic sheets to be discharged from different height positions in the calendering device. The calendering device in the prior art has a relatively uniform transmission calendering path for the plastic melt, which makes it difficult to guide and transport the plastic sheets discharged from different height positions. Summary of the Invention

[0005] The present invention provides a multi-axis calendering device for producing pharmaceutical hard tablets, which is used to solve the problem in the prior art that when the multi-axis calendering device has inconsistent plastic sheet transmission and calendering paths, it is difficult to guide and transport plastic sheets discharged from different height positions.

[0006] The technical solution of the present invention is as follows: a multi-axis calendering device for producing pharmaceutical hard tablets, comprising a calendering chassis, an extruder, and a conveying and winding device, wherein a feed end and a discharge end are respectively provided on both sides of the calendering chassis, a plurality of calendering shafts are provided in the calendering chassis, and the feed end of the calendering chassis is connected to the extruder, and further comprising: A sheet conveying structure with a turning function, which is arranged between the discharge end of the calendering machine box and the conveying and winding device, and is used to move plastic sheets discharged at different heights to the conveying and winding device; An adjusting frame, the adjusting frame is fixedly connected to the calendering machine case, a sheet guide assembly is longitudinally slidably provided on one side of the adjusting frame close to the calendering shaft body, the sheet guide assembly is used to lead the plastic sheet out of two of the calendering shaft bodies, a sheet transfer assembly is longitudinally movable in the middle part of the adjusting frame, and a sheet removal assembly is provided on the side of the adjusting frame close to the sheet conveying structure, so as to realize moving the plastic sheet after calendering from different height positions to the conveying and winding device; A sequential adjustment mechanism is provided on the adjustment frame for driving the sheet guiding assembly, the sheet transfer assembly and the sheet removing assembly to move sequentially.

[0007] In order to guide the plastic sheets discharged from different heights in the calendering box to the conveying and winding device, the sheet conveying structure includes an extension frame and a conveying frame. The calendering box is fixedly connected to the extension frame on the side close to the conveying and winding device. The conveying frame is rotatably connected to the extension frame through a rotating seat. A conveyor belt device is arranged in the conveying frame, wherein the extension frame is provided with a driving electric cylinder for driving the conveying frame to flip along the center point of the rotating seat to adjust the material receiving height of the conveying frame.

[0008] In order to change the transmission path of the plastic sheet between multiple calendering shafts, the sheet guiding assembly further includes a sloped guide frame and a guide shaft. The sloped guide frame is longitudinally slidably connected to the adjusting frame. A guide slope is provided on the sloped guide frame. The guide slope of the sloped guide frame faces the calendering shaft. Multiple guide shafts are rotatably connected to the guide slope area of the sloped guide frame, which is used to drive the plastic sheet to move along the sloped guide frame toward the sheet transfer assembly, and the multiple guide shafts rotate in the same direction.

[0009] In order to move the plastic sheet from the sloped guide frame to the sloped moving out frame, the sheet transfer assembly further includes a transfer trough frame, a transfer shaft and an inclined trough frame. The transfer trough frame is longitudinally slidably connected to the adjustment frame, the bottom of the transfer trough frame is fixedly connected to a support seat, the transfer shaft is rotatably connected in the transfer trough frame, the top two sides of the transfer trough frame are fixedly connected to the inclined trough frame, and the inclined trough frame is rotatably connected to a rotating roller.

[0010] In order to move the plastic sheet out of the calendering machine box, the sheet removal assembly further includes a sloped removal frame and a removal shaft. The sloped removal frame is longitudinally slidably connected in the adjustment frame. A removal slope is provided on the sloped removal frame. The removal slope of the sloped removal frame faces the transfer trough frame. Two removal shafts are rotatably connected to the removal slope area of the sloped removal frame. The two removal shafts rotate in opposite directions, and the plastic sheet moves between the two removal shafts.

[0011] The top of the mouth-shaped lifting trough frame is matched with the lifting screw transmission, and the bottom of the mouth-shaped lifting trough frame is provided with a screw transmission structure, and the mouth-shaped lifting trough frame is slidably connected with the sliding seat that cooperates with the screw transmission structure, and the slope guide frame, the transfer trough frame and the slope moving out frame are all provided with the magnetic connection structure between the sliding seat.

[0012] In order to synchronously drive the two lifting screws to rotate, the synchronous rotation structure further includes a rotating shaft and a transmission bevel gear. The rotating shaft is rotatably connected in the parallel section. A motor drive device is arranged between the rotating shaft and the parallel section. The transmission bevel gears are arranged on both sides of the rotating shaft. The tops of the two lifting screws are provided with driving bevel gears, and the transmission bevel gears are meshed with the driving bevel gears.

[0013] In order to magnetically connect the sliding seat to the sloped guide frame, the transfer trough frame or the sloped removal frame, the magnetic connection structure further includes an electromagnetic seat and a magnetic insertion cylinder. The bottom of the sliding seat is fixedly connected to an extension rod, and the electromagnetic seat is arranged at the bottom of the extension rod. The sloped guide frame, the transfer trough frame and the sloped removal frame are all fixedly connected with the magnetic insertion cylinder, and the electromagnetic seat is magnetically connected to the inner wall of the magnetic insertion cylinder.

[0014] In order to fix the slope guide frame and the slope removal frame position after the adjustment, further, two mounting slot frames are fixedly connected to both sides of the adjustment frame, and a plurality of electromagnetic devices are longitudinally arranged on the mounting slot frames.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, when a calendering operation is required for preparing a plastic melt for processing medicinal hard tablets, the plastic melt is sequentially transmitted and calendered between a plurality of calendering shafts. After the plastic melt has been calendered into a plastic sheet of suitable thickness, the plastic sheet does not need to undergo subsequent calendering operations. First, the sloped guide frame is moved to a specified height position, and then the height of the sloped removal frame is adjusted, and the inclination angle of the sheet conveying structure is matched with the height of the sloped removal frame. Finally, the height of the transfer trough frame is adjusted. After the plastic sheet is removed from between the corresponding two calendering shafts, a plurality of guide shafts are used to lead the plastic sheet out from between the plurality of calendering shafts. Then, the plastic sheet is removed from the calendering machine case after passing through the sloped guide frame, the transfer trough frame and the sloped removal frame in sequence.

[0016] 2. Therefore, during use, the present invention can smoothly remove the plastic sheet from the corresponding calendering shaft according to the required thickness of the medicinal hard sheet, and then transport the plastic sheet to the conveying and winding equipment, thereby improving the convenience of the production process of medicinal hard sheets of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a schematic diagram of the internal structure of the calender chassis from another perspective of the present invention; Figure 3 This is a schematic diagram of the structure of the calendering chassis, calendering shaft, adjustment frame and conveying frame in the present invention; Figure 4 It is a structural schematic diagram of the sheet conveying structure of the present invention; Figure 5 It is a schematic diagram of the structure of the adjustment frame, the sheet guiding assembly, the sheet transfer assembly, the sheet removal assembly and the sequential adjustment mechanism in the present invention; Figure 6 Schematic diagram of the structure of the sheet guide assembly in the present invention; Figure 7 Schematic diagram of the structure of the sheet transfer assembly in the present invention; Figure 8 It is a structural schematic diagram of the sheet removal assembly in the present invention; Figure 9 Schematic diagram of the structure of the sequential adjustment mechanism in the present invention; Figure 10 For the present invention Figure 9 Schematic diagram of the structure with partial section at point A.

[0019] In the figure: 100, sheet conveying structure; 200, sheet guiding assembly; 300, sheet transfer assembly; 400, sheet removal assembly; 500, sequential adjustment mechanism; 1. Calendering machine box; 2. Extrusion equipment; 3. Conveyor and rewinding equipment; 4. Calendering shaft; 5. Adjustment frame; 6. Extension frame; 7. Conveyor frame; 8. Rotating seat; 9. Conveyor belt equipment; 10. Driving electric cylinder; 11. Slope guide frame; 12. Guide slope; 13. Guide shaft; 14. Transfer trough frame; 15. Support seat; 16. Transfer shaft; 17. Inclined trough frame; 18. Rotating roller; 19. Slope removal frame; 20. Removal slope; 21. Removal shaft; 22. Slope frame; 23. Flat 1. Row section; 24. Vertical section; 25. Lifting screw; 26. Mouth-shaped lifting slot frame; 27. Screw transmission structure; 28. Sliding seat; 29. Rotating shaft; 30. Transmission bevel gear; 31. Drive bevel gear; 32. Electromagnetic seat; 33. Extension rod; 34. Magnetic insert; 35. Electromagnet; 36. First gearbox; 37. First drive motor; 38. Second gearbox; 39. Second drive motor; 40. Third gearbox; 41. Third drive motor; 42. Fourth drive motor; 43. Fourth gearbox. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making any creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 10 As shown, this embodiment proposes a multi-axis calendering device for producing pharmaceutical hard tablets, including a calendering box 1, an extruder 2 and a conveying and winding device 3. The two sides of the calendering box 1 are respectively provided with a feed end and a discharge end. A plurality of calendering shafts 4 are provided in the calendering box 1. The feed end of the calendering box 1 is connected to the extruder 2. The extruder 2 and the conveying and winding device 3 are both special supporting equipment for the calendering device in the prior art. The extruder 2 is used to extrude the plastic raw material into a plastic melt and then add it to the calendering box 1, while the conveying and winding device 3 is used to extrude the plastic raw material into a plastic melt and then add it to the calendering box 1. The winding device 3 is a prior art device for conveying and winding the plastic sheet after calendering. It is a prior art device well known to those skilled in the art, and harmful gases may be generated during the calendering process of the plastic sheet. Therefore, an environmentally friendly exhaust device is also provided on the top of the calendering machine box 1 to extract and purify the exhaust gas. The multiple calendering shafts 4 rotatably arranged in the calendering machine box 1 are driven to rotate by a transmission device, and the surfaces of the multiple calendering shafts 4 are kept at a suitable temperature by heating media such as oil.

[0022] like Figures 1 to 4 As shown, it also includes a sheet conveying structure 100 with a flipping function. The sheet conveying structure 100 is arranged between the discharge end of the calendering box 1 and the conveying and winding device 3, and is used to move plastic sheets discharged at different heights to the conveying and winding device 3. The sheet conveying structure 100 includes an extension frame 6 and a conveying frame 7. The calendering box 1 is fixedly connected to the extension frame 6 on one side close to the conveying and winding device 3. The conveying frame 7 is rotatably connected to the extension frame 6 through a rotating seat 8. A conveyor belt device 9 is arranged in the conveying frame 7, wherein a driving electric cylinder 10 is provided on the extension frame 6 for driving the conveying frame 7 to flip along the center point of the rotating seat 8 to adjust the material receiving height of the conveying frame 7. The driving electric cylinder 10 is rotatably installed on the extension frame 6 through the rotating seat, and the output end of the driving electric cylinder 10 is rotatably connected to the bottom of the conveying frame 7 through the rotating shaft seat. When the inclination angle of the conveying frame 7 and the conveyor belt device 9 needs to be adjusted, the driving electric cylinder 10 is started to drive the conveying frame 7 and the conveyor belt device 9 to flip along the center point of the rotating seat 8.

[0023] like Figures 1 to 3 、 Figure 5 and Figure 6 As shown, the adjusting frame 5 is fixedly connected to the calendering machine case 1, and a sheet guide assembly 200 is longitudinally slidably provided on one side of the adjusting frame 5 close to the calendering shaft body 4. The sheet guide assembly 200 is used to lead the plastic sheet out of two of the calendering shaft bodies 4, and the sheet guide assembly 200 includes a sloped guide frame 11 and a guide shaft 13. The sloped guide frame 11 is longitudinally slidably connected to the adjusting frame 5, and a guide slope 12 is provided on the sloped guide frame 11. The guide slope 12 of the sloped guide frame 11 faces the calendering shaft body 4, and a plurality of guide shafts 13 are rotatably connected to the guide slope 12 area of the sloped guide frame 11, which is used to drive the plastic sheet to move along the sloped guide frame 11 toward the sheet transfer assembly 300. The plurality of guide shafts 13 rotate in the same direction, and the plurality of guide shafts 13 rotate in the same direction. A first gear box 36 is provided for transmission between the guide shafts 13, and a first drive motor 37 is provided in the slope guide frame 11. The output end of the first drive motor 37 is matched with the first gear box 36 for transmission, and the setting position of the slope guide frame 11 is close to the multiple longitudinally arranged calendering shafts 4. The distance between the guide shaft 13 located at the lowermost side of the slope guide frame 11 and the calendering shaft 4 is almost close. When the plastic sheet is transmitted from the calendering shaft 4 to the side close to the guide shaft 13, the plastic sheet contacts the guide shaft 13, causing the plastic sheet to change the transmission path between the multiple calendering shafts 4, and guide the plastic sheet to the slope guide frame 11. Under the transmission action of the multiple guide shafts 13, the plastic sheet moves along the guide slope 12 toward the transfer trough 14.

[0024] like Figures 1 to 3 、 Figure 5 and Figure 7 As shown, the middle part of the adjustment frame 5 is provided with a sheet transfer assembly 300 for longitudinal movement. The sheet transfer assembly 300 includes a transfer trough frame 14, a transfer shaft 16 and an inclined trough frame 17. The transfer trough frame 14 is longitudinally slidably connected to the adjustment frame 5. The bottom of the transfer trough frame 14 is fixedly connected to a support seat 15. The transfer shaft 16 is rotatably connected inside the transfer trough frame 14. The top two sides of the transfer trough frame 14 are fixedly connected to inclined trough frames 17. The inclined trough frame 17 is rotatably connected to a rotating roller 18. When the plastic sheet moves along the guide slope 12 toward the transfer trough frame 14, the height of the transfer trough frame 14 is first moved to a position slightly lower than the slope guide frame 11, so that the plastic sheet moves from After the sloped guide frame 11 is moved out, it contacts the transfer shaft 16. A second gear box 38 is provided between the transfer shaft 16 and the transfer trough frame 14. A second drive motor 39 is provided on the transfer trough frame 14. The output end of the second drive motor 39 is matched with the second gear box 38 for transmission. The second drive motor 39 is started and the transfer shaft 16 is driven to rotate under the transmission effect of the second gear box 38, so that the transfer shaft 16 transports the plastic sheet. Because the installation height of the transfer trough frame 14 is between the sloped guide frame 11 and the sloped removal frame 19, the plastic sheet is smoothly moved toward the sloped removal frame 19 by the rotating roller 18 connected to the rotation in the inclined trough frame 17.

[0025] like Figures 1 to 3 、 Figure 5 and Figure 8 As shown, a sheet discharging assembly 400 is provided on one side of the adjusting frame 5 close to the sheet conveying structure 100, so as to realize moving the plastic sheet after calendering from different height positions to the conveying and winding device 3. The sheet discharging assembly 400 includes a sloped discharging frame 19 and a discharging shaft 21. The sloped discharging frame 19 is longitudinally slidably connected to the adjusting frame 5. A discharging slope 20 is provided on the sloped discharging frame 19. The discharging slope 20 of the sloped discharging frame 19 faces the transfer trough frame 14. Two discharging shafts 21 are rotatably connected to the discharging slope 20 area of the sloped discharging frame 19. The two discharging shafts 21 rotate in opposite directions, and the plastic sheet is moved between the two sides. The plastic sheet moves between the two removal shafts 21. After the plastic sheet moves into the sloped removal frame 19, the plastic sheet first contacts the removal shaft 21 located at the lowermost side. A third gear box 40 is provided between the two removal shafts 21 and the sloped removal frame 19. A third drive motor 41 is provided on the sloped removal frame 19. The output end of the third drive motor 41 is matched with the third gear box 40 for transmission. The third drive motor 41 is started. Under the transmission action of the third gear box 40, the two removal shafts 21 are rotated relative to each other, so that the plastic sheet enters between the two removal shafts 21 and moves out of the calendering machine box 1 and enters the conveyor belt device 9.

[0026] like Figures 1 to 3 、 Figure 5and Figure 9 As shown in Figure 9 , an adjustment mechanism 500 for sequentially driving the thin sheet guiding component 200, the thin sheet transfer component 300, and the thin sheet removal component 400 to move in sequence is provided on the adjustment frame 5. The sequential adjustment mechanism 500 includes a U-shaped frame 22, a lifting screw 25, a U-shaped lifting groove frame 26, and a magnetic connection structure. The U-shaped frame 22 is fixedly connected to the top of the adjustment frame 5. The U-shaped frame 22 includes a parallel section 23 and two vertical sections 24. A lifting screw 25 is rotatably connected inside the vertical section 24. A synchronous rotation structure is provided between the two lifting screws 25. The synchronous rotation structure includes a rotating shaft 29 and a driving bevel gear 30. The rotating shaft 29 is rotatably connected inside the parallel section 23. A motor driving device is provided between the rotating shaft 29 and the parallel section 23. Driving bevel gears 30 are provided on both sides of the rotating shaft 29. Driving bevel gears 31 are provided at the tops of the two lifting screws 25. The driving bevel gear 30 meshes with the driving bevel gear 31. When it is necessary to drive the two lifting screws 25 to rotate synchronously and adjust the height of the U-shaped lifting groove frame 26, the motor driving device includes a fourth driving motor 42 and a fourth gear box 43. The fourth gear box 43 is传动设置 (the text seems to be incomplete here, assuming it should be 'transmissively arranged') between the U-shaped frame 22 and the rotating shaft 29. The output end of the fourth driving motor 42 is in transmission cooperation with the fourth gear box 43. When the fourth driving motor 42 is started, the rotating shaft 29 is driven to rotate through the transmission effect of the fourth gear box 43. Through the meshing relationship between the driving bevel gears 30 on both sides and the driving bevel gears 31, the rotating shaft 29 drives the two lifting screws 25 to rotate; The U-shaped lifting groove frame 26 is slidably connected through both vertical sections 24. The top of the U-shaped lifting groove frame 26 is in transmission cooperation with the lifting screw 25. A screw transmission structure 27 is provided at the bottom of the U-shaped lifting groove frame 26. A sliding seat 28 that is in transmission cooperation with the screw transmission structure 27 is slidably connected inside the U-shaped lifting groove frame 26. The screw transmission structure 27 is a common lateral movement structure in the prior art and is a well-known transmission structure in the art, used to drive the sliding seat 28 to move laterally and horizontally adjust the positions of the extension rod 33 and the electromagnetic seat 32; Magnetic connection structures are provided between the slope-shaped guiding frame 11, the transfer groove frame 14, and the slope-shaped removal frame 19 and the sliding seat 28. The magnetic connection structure includes an electromagnetic seat 32 and a magnetic insertion cylinder 34. An extension rod 33 is fixedly connected to the bottom of the sliding seat 28. The electromagnetic seat 32 is provided at the bottom of the extension rod 33. Magnetic insertion cylinders 34 are fixedly connected to the slope-shaped guiding frame 11, the transfer groove frame 14, and the slope-shaped removal frame 19. The electromagnetic seat 32 is magnetically connected to the inner wall of the magnetic insertion cylinder 34. After adjusting the position and height of the electromagnetic seat 32, the electromagnetic seat 32 is inserted into the corresponding magnetic insertion cylinder 34, and the electromagnetic seat 32 is magnetically connected to the magnetic insertion cylinder 34. Then, by continuously moving the position of the electromagnetic seat 32, the longitudinal positions of the slope-shaped guiding frame 11, the transfer groove frame 14, and the slope-shaped removal frame 19 are adjusted; Two mounting slots are fixedly connected to both sides of the adjustment frame 5, and a plurality of electromagnetic devices 35 are longitudinally arranged on the mounting slots. After the positions of the sloped guide frame 11 and the sloped removal frame 19 are adjusted, the side walls of the magnetic plug-in cylinder 34 are in contact with the corresponding electromagnetic devices 35, so that the magnetic plug-in cylinder 34 is magnetically connected to the electromagnetic devices 35, and the sloped guide frame 11 and the sloped removal frame 19 are kept fixed on the adjustment frame 5, while the magnetic cylinder corresponding to the transfer slot frame 14 maintains a long-term magnetic connection with the electromagnetic seat 32. When the position of the sloped guide frame 11 and the sloped removal frame 19 needs to be adjusted, the transfer slot frame 14 is placed at the bottom side of the adjustment frame 5, so that the support seat 15 is in contact with the bottom wall of the adjustment frame 5, and an insulating material is provided between the inner and outer walls of the magnetic plug-in cylinder 34, so that the electromagnetic devices 35 and the electromagnetic seat 32 do not conflict with each other.

[0027] The working principle of the multi-axis calendering device for the production of pharmaceutical hard tablets: The cam 32 is then moved to the position where the lift truck 10 is in contact with the lift truck 11 and the lift truck 11 is in contact with the lift truck 11. The lift truck 10 is moved to the position where the lift truck 10 is in contact with the lift truck 11 and the lift truck 11 is in contact with the lift truck 11. When the plastic sheet is transmitted from the calendering shaft body 4 to the side near the guide shaft 13, the plastic sheet contacts the guide shaft 13, causing the plastic sheet to change the transmission path between the multiple calendering shaft bodies 4 and guide the plastic sheet to the slope guide frame 11. Under the transmission action of the multiple guide shafts 13, the plastic sheet moves along the guide slope 12 toward the transfer trough frame 14, driving the transfer shaft body 16 to rotate, so that the transfer shaft body 16 conveys the plastic sheet, and the rotating roller 18 connected by the rotation in the inclined trough frame 17 is used to make the plastic sheet move smoothly toward the sloped removal frame 19. After the plastic sheet moves into the sloped removal frame 19, the plastic sheet first contacts the removal shaft 21 located at the bottom, causing the two removal shafts 21 to rotate relative to each other, causing the plastic sheet to enter between the two removal shafts 21, and move out of the calendering machine case 1 and enter the conveyor belt device 9, and finally the plastic sheet enters the conveying and winding device 3.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-axis calendering device for producing pharmaceutical hard tablets, comprising a calendering box (1), an extruder (2) and a conveying and winding device (3), wherein a feed end and a discharge end are respectively provided on both sides of the calendering box (1), a plurality of calendering shafts (4) are provided in the calendering box (1), and the feed end of the calendering box (1) is connected to the extruder (2), characterized in that: Also includes: A sheet conveying structure (100) with a turning function, the sheet conveying structure (100) being arranged between the discharge end of the calendering machine box (1) and the conveying and winding device (3), and being used to move plastic sheets discharged at different heights onto the conveying and winding device (3); An adjusting frame (5), the adjusting frame (5) is fixedly connected to the calendering machine case (1), a sheet guide assembly (200) is longitudinally slidably provided on a side of the adjusting frame (5) close to the calendering shaft (4), the sheet guide assembly (200) is used to lead the plastic sheet out of two of the calendering shafts (4), a sheet transfer assembly (300) is longitudinally moved in the middle of the adjusting frame (5), and a sheet removal assembly (400) is provided on a side of the adjusting frame (5) close to the sheet conveying structure (100), so as to realize the removal of the plastic sheet after calendering from different height positions to the conveying and winding device (3); A sequential adjustment mechanism (500) is provided on the adjustment frame (5) for driving the sheet guiding assembly (200), the sheet transfer assembly (300) and the sheet removal assembly (400) to move sequentially.

2. A multi-axis calendering device for producing pharmaceutical hard tablets according to claim 1, characterized in that: The sheet conveying structure (100) comprises: An extension frame (6), the extension frame (6) being fixedly connected to a side of the calendering machine box (1) close to the conveying and winding device (3); A conveyor frame (7), the conveyor frame (7) is rotatably connected to the extension frame (6) via a rotating seat (8), and a conveyor belt device (9) is provided in the conveyor frame (7); Wherein, the extension frame (6) is provided with a driving electric cylinder (10) for driving the conveying frame (7) to flip along the center point of the rotating seat (8) to adjust the material receiving height of the conveying frame (7).

3. A multi-axis calendering device for producing pharmaceutical hard tablets according to claim 2, characterized in that: The sheet guiding assembly (200) comprises: A sloped guide frame (11), the sloped guide frame (11) being longitudinally slidably connected to the adjustment frame (5), the sloped guide frame (11) being provided with a guide slope (12), the guide slope (12) of the sloped guide frame (11) facing the calendering shaft (4); A plurality of guide shafts (13) are rotatably connected to the guide slope (12) area of the slope guide frame (11) and are used to drive the plastic sheet to move along the slope guide frame (11) toward the sheet transfer assembly (300), and the plurality of guide shafts (13) rotate in the same direction.

4. A multi-axis calendering device for producing pharmaceutical hard tablets according to claim 3, characterized in that: The sheet transfer assembly (300) comprises: A transfer trough frame (14), the transfer trough frame (14) is longitudinally slidably connected to the adjustment frame (5), and the bottom of the transfer trough frame (14) is fixedly connected to a support base (15); A transfer shaft (16), the transfer shaft (16) being rotatably connected in the transfer trough frame (14); An inclined trough frame (17) is fixedly connected to both sides of the top of the transfer trough frame (14), and a rotating roller (18) is rotatably connected inside the inclined trough frame (17).

5. The multi-axis calendering device for producing pharmaceutical hard tablets according to claim 4, characterized in that: The sheet removal assembly (400) comprises: A sloped removal frame (19), the sloped removal frame (19) being longitudinally slidably connected in the adjustment frame (5), the sloped removal frame (19) being provided with a removal slope (20), the removal slope (20) of the sloped removal frame (19) facing the transfer trough frame (14); The removal rotating shaft (21) is rotatably connected to the removal slope (20) area of the sloped removal frame (19), and the two removal rotating shafts (21) rotate in opposite directions, and the plastic sheet moves between the two removal rotating shafts (21).

6. The multi-axis calendering device for producing pharmaceutical hard tablets according to claim 5, characterized in that: The sequential adjustment mechanism (500) comprises: A shaped frame (22), the shaped frame (22) being fixedly connected to the top of the adjustment frame (5), the shaped frame (22) comprising a parallel section (23) and two vertical sections (24); A lifting screw (25), the lifting screw (25) is rotatably connected in the vertical section (24), and a synchronous rotation structure is provided between the two lifting screws (25); A mouth-shaped lifting trough frame (26), wherein the two vertical sections (24) are both penetrated by the mouth-shaped lifting trough frame (26) and are slidably connected thereto, the top of the mouth-shaped lifting trough frame (26) is in transmission cooperation with the lifting screw (25), the bottom of the mouth-shaped lifting trough frame (26) is provided with a screw transmission structure (27), and a sliding seat (28) in transmission cooperation with the screw transmission structure (27) is slidably connected inside the mouth-shaped lifting trough frame (26); A magnetic connection structure is provided between the slope-type guide frame (11), the transfer trough frame (14), the slope-type removal frame (19), and the sliding seat (28).

7. A multi-axis calendering device for producing pharmaceutical hard tablets according to claim 6, characterized in that: The synchronous rotation structure includes: a rotating shaft (29), the rotating shaft (29) being rotatably connected in the parallel section (23), and a motor drive device being provided between the rotating shaft (29) and the parallel section (23); A transmission bevel gear (30) is provided on both sides of the rotating shaft (29), and a driving bevel gear (31) is provided on the top of each of the two lifting screws (25), and the transmission bevel gear (30) is meshed with the driving bevel gear (31).

8. The multi-axis calendering device for producing pharmaceutical hard tablets according to claim 7, characterized in that: The magnetic connection structure comprises: An electromagnetic seat (32), wherein the bottom of the sliding seat (28) is fixedly connected to an extension rod (33), and the electromagnetic seat (32) is arranged at the bottom of the extension rod (33); A magnetic insert (34) is fixedly connected to the slope guide frame (11), the transfer trough frame (14) and the slope removal frame (19), and the electromagnetic seat (32) is magnetically connected to the inner wall of the magnetic insert (34).

9. The multi-axis calendering device for producing pharmaceutical hard tablets according to claim 8, characterized in that: Two mounting slot frames are fixedly connected to both sides of the adjustment frame (5), and a plurality of electromagnetic devices (35) are longitudinally arranged on the mounting slot frames.

Images