Automatic capsule cutting machine

Abstract

The present invention relates to the field of capsule production machinery, in particular to an automatic capsule cutting machine. Existing automatic capsule cutting machines have problems such as low cutting accuracy, poor capsule cutting quality, short service life of the cutting knife, and high mechanical maintenance cost. The present invention provides an automatic capsule cutting machine, including a frame and a machine base plate fixed thereon, and the machine base plate is provided with a cutting knife holder that can be raised and lowered and swayed in a horizontal plane, and the cutting knife holder is driven to sway by a sway mechanism, and the sway mechanism is composed of two groups of swing mechanisms and a group of offset mechanisms. The present invention drives the cutting knife holder to eccentrically swing in the horizontal plane. Compared with the existing unilaterally driven cutting knife holder, the eccentric swinging movement of the cutting knife holder in the horizontal plane is more stable, the capsule cutting accuracy is improved, the cutting quality is better, the working force of the cutting knife is more balanced, the service life of the cutting knife is long, and the machine maintenance cost is low; further, the intermittent rotation mechanism is optimized and improved to reduce mechanical wear and extend the service life.

Description

Technical Field

[0001] The invention relates to the field of capsule production machinery, in particular to an automatic capsule cutting machine. Background Art

[0002] Patent No. 99203784 discloses an automatic capsule cutting machine, whose cutting drive device drives the cutting bevel teeth through the cutting gap groove wheel mechanism on the main shaft, and the center teeth connected to the cutting bevel teeth drive a group of cutting deflection mechanisms to move, thereby driving the cutting knife to work.

[0003] The cutting gap groove wheel mechanism on this cutting drive device is a non-standard hexagonal groove wheel gap mechanism with poor stability and severe mechanical wear, which will lead to a short service life of the gap groove wheel mechanism; structurally, there is only one set of eccentric swing mechanism on the side of the cutting knife holder where the cutting knife is installed to drive the knife holder to move, and the cutting knife moves in the horizontal plane with the knife holder to complete the capsule shell cutting process. Since the eccentric swing mechanism is only installed on one side of the cutting knife holder, this unilateral driving method causes the cutting knife to move unstably, which in turn leads to low cutting accuracy, affecting the capsule cutting quality, and the cutting blade has a short service life and high mechanical maintenance cost; further, the cutting turntable that drives the blank capsule to be processed in and out of the cutting station passes through the cutting turntable The spindle is driven to rotate intermittently. Specifically, the cutting turntable is filled with the allocated blank capsules to be cut and stops at different workstations through intermittent rotation so that the blank capsules are cut into finished capsules one after another and then removed. The upper end of the central axis of the cutting turntable is fixed to the center of the cutting turntable, and the lower end of the central axis of the cutting turntable is connected to a four-corner groove wheel. The four-corner groove wheel cooperates with a small dial to drive intermittent rotation in four equal parts. The working principle of this intermittent drive mechanism is the same as that of an ordinary groove wheel intermittent mechanism, which has high installation accuracy requirements, slow rotation speed and low working efficiency. Furthermore, since the cutting turntable driven by the central axis of the cutting turntable has a large diameter, the inertia at the moment of stopping is also large, which will cause wear of auxiliary components and thus poor mechanical stability. Summary of the invention

[0004] The technical problem to be solved and the technical task proposed by the present invention are to overcome the low cutting accuracy, poor capsule cutting quality, short service life of the cutting knife, and high mechanical maintenance cost of the unilateral drive of the cutting drive device used in the existing automatic capsule cutting machine, and provide an automatic capsule cutting machine, the automatic capsule cutting machine has improved cutting accuracy, better capsule cutting quality, long service life of the cutting knife, and reduced mechanical maintenance cost. Furthermore, the automatic capsule cutting machine of the present invention can also reduce the inertial impact at the moment of stopping, increase the mechanical stability of the equipment, and overcome the problems of large wear, short service life and low rotation speed of the existing driving mechanism that drives the intermittent motion of the cutting turntable. At the same time, the driving mechanism that drives the intermittent motion of the cutting turntable has a simple structure, is easy to install, has good mechanical stability, has a long service life of the driving mechanism, and has a high rotation speed of the cutting turntable, which can create better working conditions for increasing the capsule cutting output.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: an automatic capsule cutting machine comprises a frame and a machine base plate fixed thereon, wherein the machine base plate is provided with a feeding turntable and a cutting turntable which are adjacent and staggered up and down, a blank feeding ejector pin matching the feeding turntable, a cutting device matching the cutting turntable and a finished product unloading ejector pin, at least two groups of through blanking holes are evenly distributed around the feeding turntable to form a blanking station and a feeding station with fixed positions, an elastic supporting sheet which can be pushed open is provided at the bottom of the blanking hole, and at least three groups of cutting die holes are evenly distributed around the cutting turntable to form a fixed position The receiving station, cutting station and unloading station of the feeding turntable are arranged. The blanking hole corresponding to the feeding station on the feeding turntable is aligned with the cutting die hole corresponding to the receiving station on the cutting turntable. A cutting base matching the cutting turntable is fixed on the machine base plate. The cutting base is located below the cutting turntable. An opening is provided on the cutting base at the corresponding unloading station to form a unloading collection port. The feeding turntable and the cutting turntable are driven by an intermittent rotating mechanism arranged on the machine base plate to perform intermittent rotation in synchronization with movement and static. When the rotation stops, the cutting device cuts the blank capsule in the cutting die hole of the cutting station into length. The finished capsules are of the same degree, and at the same time, the blank feeding ejector pushes the blank capsule in the blanking hole where the feeding station is located downward into the cutting die hole where the receiving station is located, and the finished product unloading ejector pushes the capsule in the cutting die hole where the unloading station is located downward and drops from the unloading collection port; the cutting device is characterized in that it includes a cutting tool holder, a group of cutting knives fixed to the lower bottom surface of the cutting tool holder, a cutting lifting mechanism and a cutting swing mechanism that drive the cutting tool holder to lift and lower and eccentrically swing for cutting respectively, the group of cutting knives are located above the cutting turntable and correspond to the group of cutting die holes where the cutting station is located The cutting tool holder performs a reciprocating motion of rising-stationary-descending-stationary under the drive of the cutting lifting mechanism; when the cutting tool holder is in the stationary section after the descent, the cutting deflection mechanism drives the cutting tool holder to perform an eccentric swing on the horizontal plane; the cutting deflection mechanism is composed of two sets of swing mechanisms and one set of offset mechanisms below the cutting tool holder, the two swing mechanisms are respectively arranged below the two ends of the length direction of the cutting tool holder, and the offset mechanism is arranged below one end of the length direction of the cutting tool holder, and the swing mechanism and the offset mechanism both move synchronously to drive the cutting tool holder to eccentrically swing on the horizontal plane.

[0006] The present invention controls the cutting knife holder to perform lifting motion and eccentric swing in a horizontal plane, so that the cutting knife holder drives a group of cutting knives thereon to repeatedly descend to a specified working height, and moves in a horizontal plane at the working height to cut and process capsules, wherein the cutting lifting mechanism drives the cutting knife holder to repeatedly ascend and descend and stay at the lowest and highest positions; two groups of swing mechanisms and one group of offset mechanisms in the yaw mechanism are used to synchronously move and push the cutting knife holder to perform eccentric swing in a horizontal plane when the cutting knife holder descends to the specified working height. Compared with the existing unilaterally driven cutting knife holder, the eccentric swing motion of the cutting knife holder in a horizontal plane is more stable, the cutting accuracy of the capsule is improved, the cutting quality is also better, the working force of the cutting knife is more balanced, the service life of the cutting knife is extended, and the maintenance cost of the capsule cutting machine is reduced.

[0007] As a further improvement and supplement to the above technical scheme, the present invention adopts the following technical measures: the swing mechanism corresponding to one end of the cutting tool holder includes a central shaft A rotatably arranged on the machine base plate, a central gear A fixed thereon, and two shaft gears A meshing with the central gear A. The two shaft gears A are symmetrically arranged on both sides of the central gear A, and the shaft gears A are rotatably installed under a fixed seat A fixed to the machine base plate through bearings. Each shaft gear A is provided with an eccentric shaft A extending upward, and the axis of the eccentric shaft A is offset from the rotation center of the shaft gear A. The two eccentric shafts A are rotatably connected to the same swing seat A through bearings. The swing seat A is mounted on the fixed seat A, and a limiting portion A cooperating with one end of the cutting tool holder is provided on the swing seat A; the swing mechanism corresponding to the other end of the cutting tool holder includes a central shaft B rotatably arranged on the machine base plate, a central gear B fixed thereon, and two shaft gears B meshing with the central gear B. The central shaft B and the central shaft A rotate synchronously, and the two shaft gears B are symmetrically arranged. On both sides of the central gear B, the shaft gear B is rotatably installed under the fixed seat B fixed to the machine base plate through bearings. Each shaft gear B is provided with an eccentric shaft B extending upward, and the axis of the eccentric shaft B is offset from the rotation center of the shaft gear B. The two eccentric shafts B are rotatably connected to the same swing seat B through bearings. The swing seat B is mounted on the fixed seat B. The swing seat B is provided with a limiting portion B that cooperates with the other end of the cutting tool holder; the offset mechanism includes a centrifugal cam that can push the cutting tool holder to deviate to one side of the swing seat A, and the cutting tool holder is provided with a pushing portion that can cooperate with the centrifugal cam. After the cutting tool holder is lowered to the lowest position, the pushing portion contacts the rotating centrifugal cam. The centrifugal cam is provided with a camshaft extending downward with an integral structure. The camshaft is rotatably installed on the swing seat B through bearings, and the lower end of the camshaft passes through the swing seat B and is fixed with a transmission gear B, and the transmission gear B is meshed with the central gear B. The eccentric directions of the two eccentric shafts A and the two eccentric shafts B are consistent.

[0008] The pushing part is a top sleeve arranged on the cutting tool holder, and the top sleeve is rotatably arranged on one end of the cutting tool holder close to the centrifugal cam; the limiting part A is a limiting strip and two limiting sleeves A arranged on the swing seat A and limitedly matched with one end of the cutting tool holder, the two limiting sleeves A are arranged at both ends of the limiting strip, and the spacing between the two limiting sleeves A matches the size of the corresponding end of the cutting tool holder; the limiting part B is two limiting sleeves B arranged on the swing seat B and limitedly matched with the other end of the cutting tool holder, and the spacing between the two limiting sleeves B matches the size of the corresponding end of the cutting tool holder; the two sets of swing mechanisms are connected to the drive motor through a synchronous component transmission.

[0009] The synchronization component includes a transmission shaft placed horizontally on the machine base plate, meshing helical gears A and C, and meshing helical gears B and D. The helical gear A is fixed to the lower part of the central shaft A, the helical gear B is fixed to the lower part of the central shaft B, and the helical gears C and D are fixed to both ends of the transmission shaft; one of the central shaft A, the central shaft B or the transmission shaft is connected to the drive motor.

[0010] In addition, the synchronization component can also be other structures, such as the synchronization component includes two sprockets and a matching chain, the two sprockets are respectively fixed to the lower part of the central axis A and the lower part of the central axis B, and one of the central axis A, the central axis B or the matching chain is connected to the drive motor for transmission, or the synchronization component includes two synchronous wheels and a matching synchronous belt, the two synchronous wheels are respectively fixed to the lower part of the central axis A and the lower part of the central axis B, and one of the central axis A, the central axis B or the matching synchronous belt is connected to the drive motor for transmission.

[0011] The cutting and lifting mechanism includes two cutting push rods that are penetrated on the machine base plate for lifting and lowering activities, the cutting tool holder is provided with two mounting holes that match the cutting push rods, the cutting push rods pass through the cutting tool holder, the two cutting push rods are connected at the top and bottom ends respectively by a cutting upper cross bar and a cutting lower cross bar, the cutting lower cross bar is provided with a cutting roller that matches the cutting and lifting cam below, the cutting and lifting cam is fixed on a horizontally placed main transmission shaft, the main transmission shaft is connected to the reduction motor on the frame, the two cutting push rods are provided with a conical reducing section that matches the mounting hole, the conical reducing section increases in diameter from top to bottom, the inner wall of the mounting hole is provided with an annular surface that matches the shape of the conical reducing section, when the annular surface is in contact with the conical reducing section, the cutting tool holder moves up and down with the cutting push rod, and when the cutting tool holder drops to the lowest position, its two ends are respectively mounted on the swing seat A and the swing seat B. The tapered diameter reducing section fits with the annular surface in the mounting hole of the cutting tool holder in the process of rising with the cutting mandrel, so that the cutting tool holder which is offset and swung due to cutting capsules is reset.

[0012] The blank feeding ejector pin and the finished product unloading ejector pin are driven to be synchronously lifted and lowered by the same feeding lifting mechanism movably arranged on the machine base plate. The feeding lifting mechanism comprises a long cross frame fixed on the machine base plate corresponding to the feeding station and a short cross frame corresponding to the unloading station, and two feeding ejector pins penetrating the machine base plate and the long cross frame for lifting and lowering activities. The two feeding ejector pins are connected at the top and bottom ends respectively by a feeding upper cross piece and a feeding lower cross piece. A feeding roller is provided on the feeding lower cross piece to match the feeding lifting cam below. The feeding lifting cam is fixed on the main transmission shaft. A plurality of feeding guide holes matching the blank feeding ejector pins are provided on the long cross piece, and a plurality of unloading guide holes matching the finished product unloading ejector pins are provided on the short cross piece. A group of blank feeding ejector pins and a group of finished product unloading ejector pins are arranged on the feeding upper cross piece, and the blank feeding ejector pins and the finished product unloading ejector pins are lifted and lowered with the feeding upper cross piece.

[0013] The long horizontal frame is provided with a plurality of mounting columns of equal height and a horizontal feeding guide plate is mounted thereon, and a group of feeding guide holes aligned with the feeding guide holes on the long horizontal frame are provided on the feeding guide plate; the short horizontal frame is provided with a plurality of mounting columns of equal height and a horizontal unloading guide plate is mounted thereon, and a group of unloading guide holes aligned with the unloading guide holes on the short horizontal frame are provided on the unloading guide plate. By adding mounting columns of equal height and guide plates with corresponding guide holes on the long horizontal frame and the short horizontal frame, the guiding and holding height of the feeding ejector and the unloading ejector is increased, so that the feeding ejector and the unloading ejector are more stable when rising and falling, and the corresponding position of the ejector during feeding and unloading is also more accurate.

[0014] The intermittent rotation mechanism includes a cam divider fixed on the bottom surface of the machine base plate, an intermittent output gear fixed on the output shaft of the cam divider, a gear ring fixed on the bottom of the cutting turntable, and two bridge gears. The output shaft of the cam divider is vertically penetrated on the machine base plate, and the two bridge gears are distributed up and down on the same rotating shaft vertically penetrated on the machine base plate, and the upper bridge gear and the lower bridge gear are respectively meshed with the gear ring and the intermittent output gear. The feeding turntable is fixed to the upper end of the output shaft of the cam divider, and the input shaft of the cam divider is connected to the main transmission shaft. The cam divider is combined with a multi-stage gear transmission to achieve drive, and its mechanism has a long working life and good mechanical stability; as long as the appropriate number of teeth matching the two bridge gears is set, a set of cam dividers can be used to achieve two sets of intermittent rotation drive outputs, simplifying the mechanical structure.

[0015] Four groups of cutting mold holes are evenly distributed around the circumference of the cutting turntable and distributed on four cutting discs. A flange that cooperates with the cutting turntable support is provided at the peripheral position of the cutting disc. The cutting disc can be detachably installed on the cutting turntable. A concave hole that matches the cutting disc is provided around the circumference of the cutting turntable surface. The cutting disc is partially embedded in the concave hole, and the flange on the cutting disc is supported on the edge of the concave hole. A detachable fastener is provided between two adjacent cutting discs of the cutting turntable, and a docking limiting structure is provided between the fastener and the cutting disc at the adjacent edges. The limiting structure is a protrusion and a notch of matching shape, one of the protrusion and the notch is provided on the fastener, and the other is provided on the cutting disc. Four cutting discs are evenly arranged on the cutting turntable, and each cutting disc is provided with a group of cutting die holes. Such a four-part structure is convenient for the overall layout of the equipment, and just forms a material receiving station, a waiting station, a cutting station and a material unloading station that are connected in sequence, and the material unloading station is adjacent to the material receiving station; each cutting disc is provided with a group of cutting die holes, which is convenient for processing and disassembly and assembly, and a single disc is easy to repair and replace; a concave hole matching the cutting disc is provided on the cutting turntable so that the cutting disc can be partially embedded therein to limit the installation of the cutting disc, and at the same time, a flange matching the cutting disc support is provided on the periphery of the cutting disc, and the edge of the concave hole on the cutting turntable holds the flange upward to support the cutting disc and drive it to rotate intermittently; the fastener and the cutting disc are matched by simple protrusions and notches to achieve the positioning of the cutting disc on the horizontal plane.

[0016] A hollow shaft is fixed on the cutting base, and the cutting turntable is rotatably connected to the hollow shaft through a bearing. A cutting positioning pin that can be extended upward to position the cutting disc at the cutting station is provided through a hole in the cutting base. The cutting disc is provided with a pin hole that can be plugged with the cutting positioning pin. The cutting positioning pin is movably arranged on a mounting seat fixed on the bottom surface of the cutting base through a spring. The mounting seat is provided with a channel for passing the cutting positioning pin. The spring is arranged in the channel and sleeved on the cutting positioning pin. The cutting positioning pin elastically extends upward under the action of the spring and is inserted into the pin hole of the cutting base. The part is provided with a swingable pressure rod, the middle part of the pressure rod is axially connected to the mounting seat, one end of the pressure rod is sleeved and limited at the lower part of the cutting positioning pin, the lower part of the cutting positioning pin is provided with a limiting piece which upwardly resists the sleeved end of the pressure rod, and the other end of the pressure rod is a free end; the lower cutting cross piece is provided with an unlocking push rod extending upward, and the unlocking push rod is provided with a head; when the lower cutting cross piece rises, it drives the unlocking push rod to move upward and push the free end of the pressure rod to rotate the pressure rod, and the pressure rod sleeves one end of the cutting positioning pin and moves downward and pulls the cutting positioning pin down, so that the cutting positioning pin is separated from the pin hole, and the spring is compressed when the cutting positioning pin moves downward.

[0017] The present invention realizes synchronous driving of the two ends of the cutting tool holder to make circular swings through the improvement of the cutting deflection mechanism, and completes the cutting eccentric swinging motion under the action of the offset mechanism, thereby improving the cutting stability, reducing the maintenance cost of the capsule cutting machine, and improving the capsule product quality; through the optimization and improvement of the intermittent rotation mechanism, the mechanical wear is reduced, the service life is extended, the equipment operation speed is increased, and the production capacity of the cut capsules is improved; through the coordinated movement of the deflection mechanism, the intermittent rotation mechanism, the cutting lifting mechanism and the feeding lifting mechanism, the feeding and cutting of the blank capsules and the unloading of the finished capsules are completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 : Schematic diagram of the structure of the present invention.

[0019] Figure 2 : A top view of the present invention.

[0020] Figure 3 : The present invention is viewed from the side Figure 1 .

[0021] Figure 4 : The present invention is viewed from the side Figure 2 .

[0022] Figure 5 : Schematic diagram of the intermittent rotation mechanism of the present invention.

[0023] Figure 6 : Schematic diagram of the cutting tool holder structure of the present invention.

[0024] Figure 7 : A cross-sectional view of the cutting tool holder of the present invention.

[0025] Figure 8 : Figure 2 A partial enlarged view of one end of the upper "centrifugal cam".

[0026] Fig. 9 : Schematic diagram of the main transmission shaft of the present invention.

[0027] Fig.10 : Schematic diagram of the cutting disc locking state.

[0028] Fig.11 : Schematic diagram of the cutting disc unlocked state.

[0029] Fig.12 : Schematic diagram of centrifugal cam working.

[0030] In the figure: 1. cutting turntable, 2. cutting disc, 3. cutting die hole, 4. cam divider, 5. intermittent output gear, 6. gear ring, 7. shaft, 8. upper bridge gear, 9. lower bridge gear, 10. protrusion, 11. notch, 12. head, 13. feeding hopper, 14. fastener, 15. concave hole, 16. feeding turntable, 17. cutting knife holder, 18. frame, 181. machine base plate, 19. center axis A, 20 .Center gear A, 21. Shaft gear A, 22. Fixed seat A, 23. Cutting knife, 24. Swing seat A, 25. Limiting part A, 251. Limiting strip, 252. Limiting sleeve A, 26. Center shaft B, 27. Center gear B, 28. Shaft gear B, 29. Fixed seat B, 30. Ring surface, 31. Swing seat B, 32. Blank feeding ejector, 33. Limiting part B, 331. Limiting sleeve B, 34. Centrifugal cam, 3 5. Pushing part, 36. Camshaft, 37. Transmission shaft, 38. Bevel gear A, 39. Bevel gear C, 40. Bevel gear B, 41. Bevel gear D, 42. Driving motor, 43. Speed ​​reduction motor, 44. Cutting ejector, 45. Cutting upper cross bar, 46. Cutting lower cross bar, 47. Cutting roller, 48. Cutting lifting cam, 49. Main transmission shaft, 50. Mounting hole, 51. Variable diameter section, 52. Finished product unloading ejector, 53. Cutting base, 54. Long horizontal frame, 55. Short horizontal frame, 56. Feeding ejector rod, 57. Feeding upper horizontal bar, 58. Feeding lower horizontal bar, 59. Feeding roller, 60. Feeding lifting cam, 61. Hollow shaft, 62. Cutting positioning pin, 63. Pin hole, 64. Spring, 65. Mounting seat, 66. Pressure rod, 67. Limiting piece, 68. Unlocking ejector rod, 69. Sweeping motor, 70. Blowing box, 71. Transmission gear B. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figures 1 to 12As shown, an automatic capsule cutting machine comprises a frame 18 and a machine base plate 181 fixed thereon, wherein the machine base plate 181 is provided with a feeding turntable 16 and a cutting turntable 1 which are adjacent and staggered up and down, a blank feeding ejector 32 matching the feeding turntable 16, a cutting device matching the cutting turntable 1 and a finished product unloading ejector 52, six groups of through-holes are evenly distributed around the feeding turntable 16 to form a feeding station and five blanking stations with fixed positions, and a pushable elastic supporting sheet is provided at the bottom of the blanking hole. The elastic supporting sheet in this embodiment is a rubber skin, and four groups of cutting die holes 3 are evenly distributed around the cutting turntable 1 to form a fixed position. The material receiving station, waiting station, cutting station and unloading station are connected in sequence, and the unloading station and the material receiving station are arranged adjacent to each other. In this embodiment, four groups of cutting die holes are distributed on four cutting discs 2. The peripheral position of the cutting disc 2 is provided with a flange that matches with the support of the cutting turntable 1. The cutting disc 2 can be detachably installed on the cutting turntable 1. The surface of the cutting turntable 1 is provided with concave holes 15 that match with the cutting disc 2 around the circumference. Each concave hole 15 is corresponding to a cutting disc 2 installed. The cutting disc 2 is partially embedded in the concave hole 15. The flange on the cutting disc 2 is supported on the edge of the concave hole 15. The cutting turntable 1 is provided with a removable The fastener 14 to be disassembled, the fastener 14 and the cutting disc 2 are provided with a butt-jointed limiting structure at the adjacent edge, the limiting structure is a protrusion 10 and a notch 11 of matching shape, one of the protrusion 10 and the notch 11 is provided on the fastener 14, and the other is provided on the cutting disc 2; the blanking hole corresponding to the feeding station on the feeding turntable 16 is aligned with the cutting die hole corresponding to the receiving station of the cutting turntable 1, and the cutting base 53 matching the cutting turntable 1 is fixed on the machine base plate 181, the cutting base 53 is located below the cutting turntable 1, and the cutting base 53 is provided with an opening at the corresponding unloading station to form an unloading receiving station. A hollow shaft 61 is fixed on the cutting base 53, and the cutting turntable 1 is rotatably connected to the hollow shaft 61 through a bearing. The feeding turntable 16 and the cutting turntable 1 are driven by the intermittent rotation mechanism arranged on the machine base plate 181 to perform intermittent rotation in dynamic and static synchronization. When stopped, the cutting device cuts the blank capsules in the cutting die hole 3 where the cutting station is located into finished capsules with uniform length. At the same time, the blank feeding ejector 32 pushes the blank capsules in the blanking hole where the feeding station is located downward into the cutting die hole 3 where the receiving station is located, and the finished product unloading ejector 52 pushes the capsules in the cutting die hole 3 where the unloading station is located downward and drops from the unloading collection port.

[0033] The cutting device comprises a cutting tool holder 17, a group of cutting knives 23 fixed to the bottom surface of the cutting tool holder 17, a cutting lifting mechanism and a cutting deflection mechanism for driving the cutting tool holder 17 to lift and lower and perform eccentric cutting swinging, respectively. A group of cutting knives 23 is located above the cutting turntable 1 and corresponds to a group of cutting die holes 3 where the cutting station is located; the cutting tool holder 17 performs a reciprocating motion of lifting-stationary-descending-stationary under the drive of the cutting lifting mechanism; when the cutting tool holder 17 is in the stationary section after being lowered, the cutting deflection mechanism drives the cutting tool holder 17 to perform eccentric swinging on a horizontal plane; the cutting deflection mechanism is composed of two groups of swinging mechanisms and one group of offset mechanisms below the cutting tool holder 17, the two swinging mechanisms are respectively arranged below the two ends of the length direction of the cutting tool holder 17, and the offset mechanism is arranged below the cutting tool holder 17. Below one end of the cutting knife frame 17 in the length direction, the swing mechanism and the offset mechanism both move synchronously to push the cutting knife frame 17 to swing eccentrically in the horizontal plane; the swing mechanism corresponding to one end of the cutting knife frame 17 includes a central shaft A19 rotatably arranged on the machine base plate 181, a central gear A20 fixed thereon, and two shaft gears A21 meshing with the central gear A20, the two shaft gears A21 are symmetrically arranged on both sides of the central gear A20, and the shaft gears A21 are rotatably installed below the fixed seat A22 fixed to the machine base plate 181 through bearings, each shaft gear A21 is provided with an eccentric shaft A extending upward, and the axis of the eccentric shaft A is offset from the rotation center of the shaft gear A21, and the two eccentric shafts A are rotatably connected to the same swing seat A24 through bearings Next, the swing seat A24 is mounted on the fixed seat A22, and the swing seat A24 is provided with a limiting portion A25 that cooperates with one end of the cutting tool holder 17. In this embodiment, the limiting portion A25 is a limiting strip 251 and two limiting sleeves A252 that are provided on the swing seat A24 and cooperate with one end of the cutting tool holder 17. The two limiting sleeves A252 are arranged at both ends of the limiting strip 251, and the spacing between the two limiting sleeves A252 matches the size of the corresponding end of the cutting tool holder 17; the swing mechanism corresponding to the other end of the cutting tool holder 17 includes a central shaft B26 rotatably arranged on the machine base plate 181, a central gear B27 fixed thereon, and two shaft gears B28 meshing with the central gear B27, and the central shaft B26 and the central shaft A19 rotate synchronously. Two shaft gears B28 are symmetrically arranged on both sides of the central gear B27, and the shaft gears B28 are rotatably installed under the fixed seat B29 fixed to the machine base plate 181 through bearings. Each shaft gear B28 is provided with an eccentric shaft B extending upward, and the axis of the eccentric shaft B is offset from the rotation center of the shaft gear B28. The two eccentric shafts B are rotatably connected to the same swing seat B31 through bearings. The swing seat B31 is mounted on the fixed seat B29. The swing seat B31 is provided with a limiting portion B33 that cooperates with the other end of the cutting tool holder 17. In this embodiment, the limiting portion B33 is two limiting sleeves B331 provided on the swing seat B31 and limitedly cooperates with the other end of the cutting tool holder 17. The spacing between the two limiting sleeves B331 matches the size of the corresponding end of the cutting tool holder 17.The offset mechanism includes a centrifugal cam 34 that can push the cutting tool holder 17 to deflect to one side of the swing seat A24. The cutting tool holder 17 is provided with a pushing portion 35 that can abut against the centrifugal cam 34. The pushing portion 35 is a top sleeve provided on the cutting tool holder 17. The top sleeve is rotatably provided on one end of the cutting tool holder 17 close to the centrifugal cam 34. When the cutting tool holder 17 is lowered to the lowest position, the top sleeve contacts the rotating centrifugal cam 34. The centrifugal cam 34 is provided with a camshaft 36 that extends downward as an integral structure. The camshaft 36 is rotatably installed on the swing seat B31 through a bearing, and the lower end of the camshaft 36 passes through the swing seat B31 and is fixed to a transmission gear B71. The transmission gear B71 is non-standardly meshed with the central gear B27. The eccentric directions of the two eccentric shafts A and the two eccentric shafts B are consistent. The centrifugal cam works as follows; Fig.12 As shown, when the centrifugal cam rotates counterclockwise for one cycle, corresponding to hefgh as one cycle, the he segment on the centrifugal cam drives the push part to deviate to the left together with the cutting blade holder, the efg segment locks the push part so that it maintains the deviated state together with the cutting blade holder, and the gh segment releases the aforementioned lock and has no pushing effect on the push part. Similarly, the centrifugal cam can also rotate clockwise in the opposite direction for one cycle, corresponding to hgfeh as one cycle, the hg segment on the centrifugal cam drives the push part to deviate to the left, the gfe segment locks the push part so that it maintains the deviated state, and the eh segment releases the aforementioned lock and has no pushing effect on the push part.

[0034] The two sets of swing mechanisms are connected to the drive motor 42 through a synchronous assembly, and the synchronous assembly includes a transmission shaft 37 placed horizontally on the machine base plate 181, meshing bevel gears A38 and C39, and meshing bevel gears B40 and D41. The bevel gear A38 is fixed to the lower part of the center shaft A19, the bevel gear B40 is fixed to the lower part of the center shaft B26, and the bevel gears C39 and D41 are fixed to both ends of the transmission shaft 37; one of the center shaft A19, the center shaft B26 or the transmission shaft 37 is connected to the drive motor 42. In this embodiment, the drive motor is preferably connected to the center shaft B26 through a gear transmission pair.

[0035] According to the implementation needs, the synchronization component can also be two sprockets of the same size and a matching chain, the two sprockets are respectively fixed to the lower part of the central axis A19 and the lower part of the central axis B26, and one of the central axis A19, the central axis B26 or the matching chain is connected to the drive motor 42, or the synchronization component is two synchronous wheels of the same size and a matching synchronous belt, the two synchronous wheels are respectively fixed to the lower part of the central axis A19 and the lower part of the central axis B26, and one of the central axis A19, the central axis B26 or the matching synchronous belt is connected to the drive motor 42. The transmission connection to the drive motor 42 here can be through gear meshing transmission connection, sprocket transmission connection or synchronous wheel transmission connection, which is the prior art in the field and will not be repeated here.

[0036] The cutting lifting mechanism includes two cutting push rods 44 that penetrate the machine base plate 181 for lifting and lowering activities. The cutting tool holder 17 is provided with two mounting holes 50 that match the cutting push rods 44. The cutting push rods 44 pass through the cutting tool holder 17. The two cutting push rods 44 are connected at the top and bottom ends respectively by a cutting upper cross bar 45 and a cutting lower cross bar 46. The cutting lower cross bar 46 is provided with a cutting roller 47 that matches a cutting lifting cam 48 below. The cutting lifting cam 48 is fixed on a horizontal main transmission shaft 49. The main transmission shaft 49 is connected to the reduction motor 43 on the frame 18, and the two cutting top rods 44 are provided with a conical reducing section 51 matching the mounting hole 50. The conical reducing section 51 increases in diameter from top to bottom, and the inner wall of the mounting hole 50 is provided with an annular surface 30 matching the shape of the conical reducing section 51. When the annular surface 30 is in contact with the conical reducing section 51, the cutting tool holder 17 moves up and down with the cutting top rod 44. When the cutting tool holder 17 descends to the lowest position, its two ends are respectively mounted on the swing seat A24 and the swing seat B31.

[0037] When the cutting lifting mechanism in the cutting device drives the cutting tool holder 17 to descend to the lowest position, the cutting deflection mechanism works. At this time, the two ends of the cutting tool holder 17 are mounted on the swing seat A24 and the swing seat B31, and the driving motor 42 works. The central shaft B26 is driven to rotate through the gear pair. The bevel gear B40 on the central shaft B26 drives the bevel gear D41 matched with it to rotate, thereby driving the bevel gear C39 to rotate through the transmission shaft, and the bevel gear C39 drives the bevel gear A38 meshing with it to rotate, and then drives the central shaft through the bevel gear A38. A19 rotates synchronously with the central shaft B26; the central gear A20 on the central shaft A19 drives the two shaft gears A21 under the fixed seat A22 to rotate, so that the swing seat A24 connected to the two eccentric shafts A through bearing rotation makes two circles, that is, 720° of circular swing; the central gear B27 on the central shaft B26 drives the two shaft gears B28 under the fixed seat B29 to rotate, so that the swing seat B31 connected to the two eccentric shafts B through bearing rotation moves synchronously with the swing seat A24, making two circles, that is, 720° of circular swing, The central gear B27 causes the centrifugal cam 34 on the camshaft to synchronously rotate in a circle, i.e., 360°, through the transmission gear B71; the centrifugal cam 34 pushes the cutting tool holder 17 to deflect a certain displacement toward the swing seat A24 and limit the position by rotating the top sleeve provided on the cutting tool holder 17; the cutting tool holder 17 performs two circles, i.e., 720° circular swing and offset compounded swaying motion under the joint action of a limit strip 251, two limit sleeves A252, two limit sleeves B331 on the swing seat B31, and the centrifugal cam 24, and the cutting knife 23 performs synchronous swaying motion following the cutting tool holder 17, thereby the cutting knife 23 completes a cutting motion of the blank capsule in the cutting die hole 3 at the cutting station. The offset mechanism in this embodiment is actually driven as a whole with a swing mechanism under the cutting tool holder, and the aforementioned swing mechanism and offset mechanism are driven to move synchronously through the central gear B without affecting each other.

[0038] The blank feeding ejector pin 32 and the finished product unloading ejector pin 52 are driven to rise and fall synchronously by the same feeding lifting mechanism movably arranged on the machine base plate 181. The feeding lifting mechanism includes a long horizontal frame 54 fixed on the machine base plate 181 corresponding to the feeding station and a short horizontal frame 55 corresponding to the unloading station, two feeding ejector rods 56 penetrating the machine base plate 181 and the long horizontal frame 54 for lifting and falling activities, and the two feeding ejector rods 56 are connected at the top and bottom ends respectively by a feeding upper cross bar 57 and a feeding lower cross bar 58. The feeding lower cross bar 58 is provided with a feeding roller 59 and a feeding lifting cam 60 below. The feeding lifting cam 60 is fixed on the main transmission shaft 49. The long horizontal frame 54 is provided with a plurality of The short cross frame 55 is provided with a plurality of unloading guide holes that match the finished product unloading ejector pins 52. The group of blank feeding ejector pins 32 and the group of finished product unloading ejector pins 52 are mounted on the upper feeding cross bar 57, and the blank feeding ejector pins 32 and the finished product unloading ejector pins 52 are raised and lowered with the upper feeding cross bar 57; the long cross frame 54 is also provided with a plurality of mounting columns of equal height and a horizontal feeding guide plate is mounted thereon, and a group of feeding guide holes aligned with the feeding guide holes on the long cross frame 54 are provided on the feeding guide plate; the short cross frame 55 is also provided with a plurality of mounting columns of equal height and a horizontal unloading guide plate is mounted thereon, and a group of unloading guide holes aligned with the unloading guide holes on the short cross frame 55 are provided on the unloading guide plate.

[0039] The intermittent rotation mechanism includes a cam divider 4 fixed to the bottom surface of the machine base plate 181, an intermittent output gear 5 fixed to the output shaft of the cam divider 4, a gear ring 6 fixed to the bottom of the cutting turntable 1, and two bridge gears. The output shaft of the cam divider 4 is vertically penetrated on the machine base plate 181, and the two bridge gears are distributed up and down on the same rotating shaft 7 vertically penetrated on the machine base plate 181, and the upper bridge gear 8 and the lower bridge gear 9 are respectively meshed with the gear ring 6 and the intermittent output gear 5, the feeding turntable 16 is fixed to the upper end of the output shaft of the cam divider 4, and the input shaft of the cam divider 4 is connected to the main transmission shaft 49. In this embodiment, the input shaft of the cam divider 4 is connected to the main transmission shaft 49 through a gear pair.

[0040] When the intermittent rotation mechanism is working, the main transmission shaft 49 drives the cam divider 4 input shaft to rotate through the gear transmission pair, and then outputs intermittent rotation with a certain dynamic-static ratio through the cam divider 4 output shaft. The intermittent output gear 5 on the output shaft of the cam divider 4 drives the ring gear 6 to rotate intermittently through two bridge gears on the same rotating shaft 7. Since the cutting turntable 1 is rotatably connected to the hollow shaft 61 fixed on the cutting base 53 through the bearing, and the ring gear 6 is fixed to the bottom of the cutting turntable 1, the ring gear 6 drives the cutting turntable 1 to rotate intermittently synchronously, and the upper end of the output shaft of the cam divider 4 drives the feeding turntable 16 to rotate intermittently. In this embodiment, the dynamic-static ratio of the cam divider is 1:3, with six working positions, that is, the cam divider input shaft rotates 360° in one circle, of which the cam divider output shaft rotates 60° in one position within 90°, and the cam divider output shaft is stationary within 270°. The cam divider input shaft rotates six circles, and the cam divider output shaft completes one cycle and six working positions, thereby driving the feeding turntable to complete one cycle and six working positions intermittent rotation; at the same time, by setting the transmission gear ratio, the cutting turntable can be made to intermittently rotate in four positions, that is, the cutting turntable rotates 90° at each position. During operation, every time the main transmission shaft rotates 360°, the cam divider input shaft is driven to rotate 360° through the gear transmission pair, of which 90° is driven by the cam divider output shaft to drive the feed turntable fixed on its upper end to rotate 60° in one station. At the same time, the cam divider output shaft drives the cutting turntable fixed on the gear ring to rotate 90° in one station with the hollow shaft as the axis through the intermittent output gear, the upper and lower bridge teeth and the gear ring; when the cam divider input shaft rotates the remaining 270°, the feed turntable and the cutting turntable are stationary; the dynamic-static ratio of the cam divider is 1:3. When the main transmission shaft rotates continuously, it drives the feed turntable to rotate continuously by 60° - stationary intermittent rotation, and drives the cutting turntable to rotate continuously by 90° - stationary intermittent rotation.

[0041] As shown in Figures 10 and 11, a hollow shaft 61 is fixedly provided on the cutting base 53, and a blow box 70 is connected to the top of the hollow shaft 61. Blow holes are opened on the side wall of the blow box 70. The cutting turntable 1 is rotatably connected to the hollow shaft 61 through a bearing. A cutting positioning pin 62 that can be extended upward to position the cutting disc 2 at the cutting station is provided through a hole in the cutting base 53. The cutting disc 2 is provided with a pin hole 63 that can be plugged with the cutting positioning pin 62. The cutting positioning pin 62 is movably provided on a mounting seat 65 fixed on the bottom surface of the cutting base 53 through a spring 64. The mounting seat 65 is provided with a channel to pass the cutting positioning pin 62. The spring 64 is provided in the channel and is sleeved on the cutting positioning pin 62. The cutting positioning pin 62 elastically extends upward from the cutting base under the action of the spring 64. 53 is inserted into the pin hole 63, and a swingable pressure rod 66 is provided at the bottom of the mounting seat 65. The middle part of the pressure rod 66 is axially connected to the mounting seat 65, and one end of the pressure rod 66 is sleeved and limited at the lower part of the cutting positioning pin 62. A limiting piece 67 is provided at the lower part of the cutting positioning pin 62 to upwardly resist the sleeve end of the pressure rod 66, and the other end of the pressure rod 66 is a free end. An unlocking push rod 68 extending upward is provided on the cutting lower cross piece 46, and a top head 12 is provided on the unlocking push rod. When the cutting lower cross piece 46 rises, it drives the unlocking push rod 68 to move upward to push the free end of the pressure rod 66 to rotate the pressure rod 66, and the pressure rod 66 sleeves one end of the cutting positioning pin 62 and moves downward and pulls the cutting positioning pin 62 down, so that the cutting positioning pin 62 is separated from the pin hole 63, and the cutting positioning pin 62 is compressed when the cutting positioning pin 62 moves downward. Spring 64 is compressed.

[0042] The cutting disc can rotate around the hollow shaft through the bearing to reduce friction; when the cutting disc is in the intermittent rotation and stop stage, when the cutting positioning pin is inserted into the pin hole on the cutting disc located on the cutting station, the cutting disc is reliably locked and positioned, and when the cutting positioning pin is withdrawn from the pin hole, the aforementioned positioning is unlocked, and the cutting disc can drive the cutting disc to rotate freely again; the pressure rod is axially connected to a mounting seat that is fixed to the bottom surface of the cutting base and always remains stationary. The pressure rod can swing around the axial connection end to make one end of it press down the limit piece, thereby driving the cutting positioning pin to move down and compress the spring; when the cutting lower cross bar rises, it means that the cutting is finished. At this time The unlocking push rod on the cutting lower cross bar also moves up synchronously, and the top pushes the free end of the pressure rod to swing around the shaft connection end. The pressure rod is sleeved with one end of the cutting positioning pin to press the limit piece, pushing the cutting positioning pin down and compressing the spring. After the cutting lower cross bar rises to the highest point, the cutting positioning pin completely unlocks the cutting disc positioning, and then the cutting turntable rotates one station 90 degrees; when the cutting turntable stops rotating again, the cutting lower cross bar drops again to drive the unlocking push rod to move down, releasing the push on the free end of the pressure rod, and the spring stretches and resets to push the cutting positioning pin up, and the cutting positioning pin is extended again and inserted into the pin hole on the cutting disc to lock the cutting disc.

[0043] Working of the feeding lifting mechanism: The feeding lifting cam rotates 360° along with the main transmission shaft for one working cycle. Within one cycle, the feeding lifting cam must include three working sections, namely, the rising section - the stationary section - the descending section.

[0044] During operation, the lifting and lowering of a group of blank feeding ejectors and a group of finished product unloading ejectors mounted on the upper feeding cross bar are achieved by the movement of two feeding ejector rods. Since the two feeding ejector rods are connected at the upper and lower ends by the upper feeding cross bar and the lower feeding cross bar respectively, a stable quadrilateral frame structure is formed. By utilizing the cooperation of the feeding roller on the lower feeding cross bar and the rotating feeding lifting cam, the feeding lifting cam rotates 360° in one circle, thereby driving the quadrilateral frame including the two feeding ejector rods to perform a lifting and lowering movement of a cycle of rise-stationary-descend. The feeding lifting cam in this embodiment is explained with three working sections, namely a→b rising section, b→c rising static section, c→a falling section; when the feeding lifting cam runs in the a→b rising section, a group of blank feeding ejectors mounted on the upper cross piece of the feeding are successively lifted up from the cutting die holes on the cutting turntable receiving station and the blanking holes on the feeding station of the feeding turntable, and a group of finished product unloading ejectors mounted on the upper cross piece of the feeding are lifted up from the cutting die holes on the unloading station of the cutting turntable; when rising to the highest point, the lower bottom surface of the blank feeding ejector is higher than the upper bottom surface of the feeding turntable, and the lower bottom surface of the finished product unloading ejector is higher than the upper bottom surface of the cutting knife disc on the feeding turntable. When the feeding lifting cam runs in the b→c rising and stationary section, a group of blank feeding ejectors and a group of finished product unloading ejectors mounted on the upper cross bar of the feeding are stationary. During this period, the intermittent rotation mechanism drives the feeding turntable to rotate one station 60°, and transfers a group of blanking holes on the feeding station that has completed feeding to the adjacent blanking station on the side to wait for blanking again, and transfers a group of blanking holes on the other side of the feeding station to the feeding station. When the feeding lifting cam runs in the descending section c→a, a group of blank feeding ejectors mounted on the upper horizontal bar of the feeding push the blank capsule on the feeding station of the feeding turntable out of the blank hole. At this time, there are two states: 1. For the blank capsule with the open end facing upward, the feeding ejector extends into the blank capsule hole, and is pushed by the feeding ejector to be fed into the cutting die hole on the corresponding cutting turntable receiving station below; 2. For the blank capsule with the closed end facing upward, the feeding ejector pushes the blank capsule out of the blank hole on the feeding turntable through the closed end, and is blown to the designated return material collection port by the lateral positive pressure wind blown out by the blowing box set on the top of the hollow shaft corresponding to the center position of the cutting turntable, so as to be collected and reused; a group of finished product unloading ejectors mounted on the upper horizontal bar of the feeding push the capsule that has been cut in the cutting knife disc on the unloading station of the cutting turntable downward out of the cutting die hole to the unloading collection port. At this point, the feeding lifting cam completes a cycle of lifting and lowering static motion, the blank feeding ejector completes a feeding motion, the finished product unloading ejector completes a unloading motion, and the intermittent rotation mechanism drives the feeding turntable to rotate 60° at one station.

[0045] Working of cutting lifting mechanism: One working cycle is when the cutting lifting cam rotates 360° along with the main transmission shaft. Within one cycle, the cutting lifting cam is divided into four working sections, namely A→B rising section, B→C rising stationary section, C→D descending section, and D→A descending stationary section.

[0046] During operation, the lifting and lowering of the cutting tool holder is achieved through the movement of the two cutting push rods. Since the two cutting push rods are connected at the upper and lower ends by the cutting upper cross bar and the cutting lower cross bar respectively, a stable quadrilateral frame structure is formed. By utilizing the cutting roller on the cutting lower cross bar and the rotating cutting lifting cam, the cutting lifting cam rotates 360 degrees in one circle, which can drive the quadrilateral frame including the two cutting push rods to perform a lifting movement of rising-stationary-descending-stationary in a cycle. The four working sections of the cutting lifting cam are further discussed: when the cutting lifting cam runs in the D→A descending and stationary section, the driving motor fixed on the machine base plate quickly drives the eccentric swing mechanism through the gear pair and the synchronous component to make the cutting knife on the cutting tool holder complete an eccentric swing motion and stop, and cut the blank capsule in the cutting knife disc at the cutting station into capsules of specified length. At this time, the center positions of the two mounting holes on the cutting tool holder are offset from the axis positions of the two cutting push rods; when the cutting lifting cam runs in the A→B ascending section, after the two cutting push rods rise a certain distance from the lowest position, the conical reducing section on the cutting push rod and the inner wall of the mounting hole on the cutting tool holder are provided with a matching ring When the surfaces are re-fitted, the cutting tool holder is reset to the correct position. At this time, the center positions of the two mounting holes on the cutting tool holder coincide with the axis positions of the two cutting push rods. The cutting tool holder continues to rise to the highest position following the two cutting push rods. At this time, the cutting tool holder is lifted off the swing seat A and the swing seat B and is free from the constraints of the limit parts A and B. The cutting knife rises synchronously with the cutting tool holder, and the cutting tailings are blown to the designated tailings collection port by the lateral positive pressure wind blown out by the blowing box set at the top of the hollow shaft corresponding to the center position of the cutting turntable; when the cutting lifting cam runs in the B→C rising static section, the cutting tool holder is static at the highest point with the cutting push rod. During this period, the cutting positioning pin on the cutting base completely unlocks the positioning of the cutting disc. The intermittent rotation mechanism drives the cutting turntable to rotate 90 degrees at one station, and the finished capsules cut on the cutting disc at the cutting station are transferred to the unloading station, and the blank capsules on the cutting disc at the waiting station are transferred to the cutting station; the blank capsules on the cutting disc at the receiving station are transferred to the waiting station; the cutting disc that has completed unloading at the unloading station is transferred to the receiving station; when the cutting lifting cam runs in the C→D descending section, the cutting tool holder descends with the two cutting mandrels, and when the bottom surfaces at both ends of the cutting tool holder in the length direction are attached to the corresponding swing seats below, the cutting mandrels are tapered and reduced in diameter The segment begins to separate from the annular surface on the inner wall of the mounting hole on the cutting tool holder, the cutting tool holder is stationary and constrained by the corresponding limit parts A and B, the cutting knife on the cutting tool holder drops to the cutting position and rises into the corresponding blank capsule hole on the cutting tool disc of the cutting station, the cutting push rod continues to drop to the lowest position, at this time the cutting positioning pin on the cutting base re-locks the corresponding cutting tool disc; so far, the cutting lifting mechanism completes a cycle of lifting and stationary motion, the yaw mechanism completes a horizontal plane cutting eccentric swing motion, and the intermittent rotation mechanism drives the cutting turntable to rotate 90° at one station.

[0047] When the automatic capsule cutting machine in this embodiment is working, a certain number of blank capsules are first placed in the feeding hopper, and the blank capsules are fed to the feeding turntable and fall into the blanking holes on the feeding turntable. This is the prior art. Specifically, the blank capsules are fed from the discharge port at the upper part of the feeding hopper and are fed to the feeding turntable from the discharge port at the bottom of the feeding hopper. The sweeping frame is driven by the sweeping motor 69 for auxiliary material dropping to rotate, and the blank capsules that fall on the feeding turntable are swept into each vacant blanking hole. At this time, the capsules enter the drop-down state in two states. The blank capsule is placed in the material hole and supported by the supporting sheet on the bottom of the feeding turntable. One state is that the blank capsule is placed in the material hole with the open end facing upwards, and the other state is that the blank capsule is placed in the material hole with the closed end facing upwards. When the whole machine is working, the automatic capsule cutting machine drives the main transmission shaft to rotate continuously through the reduction motor, and the feeding lifting cam on the main transmission shaft drives the feeding lifting mechanism to work, so that the blank feeding ejector pin and the finished product unloading ejector pin perform rising, stationary, and descending reciprocating motions; the cutting lifting cam on the main transmission shaft drives the cutting lifting mechanism to work, so that the cutting tool holder It performs rising, stationary, descending, and stationary reciprocating motions; during the operation of the feeding lifting cam and the cutting lifting cam, the intermittent rotating mechanism coordinates and cooperates to drive the feeding turntable and the cutting turntable to perform intermittent rotation, and at the same time, the cutting swinging mechanism coordinates and cooperates to drive the cutting knife to perform eccentric cutting swinging motion; the cutting positioning pin on the cutting base cooperates with the entire movement to lock and unlock the cutting knife disc; through the coordinated work of the above-mentioned mechanism and other auxiliary components, the blank capsule enters the drop hole in the feeding turntable from the feeding hopper, is driven to the feeding station by the intermittent rotating mechanism, and is sent from the feeding turntable to the cutting knife disc on the cutting turntable receiving station by the blank feeding ejector pin. The blank capsule on the cutting turntable receiving station is driven by the intermittent rotating mechanism to the cutting station, and then the cutting knife holder drives the cutting knife to cut the blank capsule. After the cutting is completed, the intermittent rotating mechanism drives the capsule that has been cut on the cutting station of the cutting turntable to the unloading station, and then the unloading is completed by the finished product unloading ejector pin, thus completing a cycle of the work process.

Claims

1. An automatic capsule cutting machine, comprising a frame (18) and a base plate (181) fixed thereon, the base plate (181) being provided with a feeding turntable (16) and a cutting turntable (1) adjacent and staggered in the upper and lower directions, a blank feeding ejector (32) matching the feeding turntable (16), a cutting device and a finished product unloading ejector (52) matching the cutting turntable (1), at least two groups of through-holes being evenly distributed around the feeding turntable (16) to form a fixed-position blanking station and a feeding station, a pushable elastic supporting sheet being provided at the bottom of the blanking holes, at least three groups of cutting die holes (3) being evenly distributed around the cutting turntable (1) to form a fixed-position receiving station, a cutting station and a unloading station, the blanking holes on the feeding turntable (16) corresponding to the feeding station and the cutting die holes on the cutting turntable (1) corresponding to the receiving station being vertically aligned. The cutting base (53) matching the cutting turntable (1) is fixed on the machine base plate (181), the cutting base (53) is located below the cutting turntable (1), and the cutting base (53) is provided with an opening at the corresponding unloading station to form a unloading collection port. The feeding turntable (16) and the cutting turntable (1) are driven by an intermittent rotation mechanism provided on the machine base plate (181) to perform intermittent rotation in a dynamic and static synchronous manner. When the cutting device stops rotating, the blank capsule in the cutting die hole (3) where the cutting station is located is cut into finished capsules of uniform length. At the same time, the blank feeding ejector pin (32) pushes the blank capsule in the blanking hole where the feeding station is located downward into the cutting die hole (3) where the receiving station is located. The finished product unloading ejector pin (52) pushes the capsule in the cutting die hole (3) where the unloading station is located downward to drop from the unloading collection port. Its characteristics are The cutting device comprises a cutting knife frame (17), a group of cutting knives (23) fixed to the bottom surface of the cutting knife frame (17), a cutting lifting mechanism and a cutting deflection mechanism for driving the cutting knife frame (17) to lift and eccentrically swing respectively, wherein the group of cutting knives (23) is located above the cutting turntable (1) and corresponds to a group of cutting die holes (3) where the cutting station is located; the cutting knife frame (17) performs a reciprocating motion of lifting-stationary-descending-stationary under the driving of the cutting lifting mechanism; when the cutting knife frame (17) is in the stationary section after the descent, the cutting deflection mechanism drives the cutting knife frame (17) to eccentrically swing on a horizontal plane; the cutting deflection mechanism consists of two groups of swing mechanisms and one group of offset mechanisms below the cutting knife frame (17), the two swing mechanisms are respectively arranged below the two ends of the cutting knife frame (17) in the length direction, and the offset mechanism is arranged below one end of the cutting knife frame (17) in the length direction, and the swing mechanism and the offset mechanism move synchronously to drive the cutting knife frame (17) to eccentrically swing on a horizontal plane; The swing mechanism corresponding to one end of the cutting tool holder (17) comprises a central shaft A (19) rotatably arranged on a machine base plate (181), a central gear A (20) fixed thereon, and two shaft gears A (21) meshing with the central gear A (20), the two shaft gears A (21) being symmetrically arranged on both sides of the central gear A (20), and the shaft gears A (21) being rotatably mounted below a fixed seat A (22) fixedly connected to the machine base plate (181) through bearings, each shaft gear A (21) being provided with an eccentric shaft A extending upward, and the axis of the eccentric shaft A being offset from the rotation center of the shaft gear A (21), and the two eccentric shafts A is rotatably connected to the same swing seat A (24) through a bearing, the swing seat A (24) is mounted on the fixed seat A (22), and the swing seat A (24) is provided with a limit portion A (25) that cooperates with one end of the cutting knife holder (17); the swing mechanism corresponding to the other end of the cutting knife holder (17) includes a central shaft B (26) rotatably arranged on the machine base plate (181), a central gear B (27) fixed thereon, and two shaft gears B (28) meshing with the central gear B (27), the central shaft B (26) and the central shaft A (19) rotate synchronously, and the two shaft gears B (28) are symmetrically arranged on the central gear B ( 27), and the shaft gear B (28) is rotatably mounted below the fixed seat B (29) fixed to the machine base plate (181) through a bearing, each shaft gear B (28) is provided with an eccentric shaft B extending upward, and the axis of the eccentric shaft B is offset from the rotation center of the shaft gear B (28), the two eccentric shafts B are rotatably connected to the same swing seat B (31) through bearings, the swing seat B (31) is mounted on the fixed seat B (29), and the swing seat B (31) is provided with a limit portion B (33) that cooperates with the other end of the cutting tool holder (17); the offset mechanism includes a mechanism that can push the cutting tool holder (17) toward the swing seat A (2 4) a centrifugal cam (34) offset on one side, the cutting blade holder (17) is provided with a pushing portion (35) that can abut against the centrifugal cam (34), and when the cutting blade holder (17) is lowered to the lowest position, the pushing portion (35) contacts the rotating centrifugal cam (34), and the centrifugal cam (34) is provided with a cam shaft (36) extending downwardly in an integral structure, and the cam shaft (36) is rotatably installed on the swing seat B (31) through a bearing, and the lower end of the cam shaft (36) passes through the swing seat B (31) and is fixedly connected to a transmission gear B (71), and the transmission gear B (71) is meshed with the central gear B (27); the eccentric directions of the two eccentric shafts A and the two eccentric shafts B are consistent.

2. The automatic capsule cutting machine according to claim 1, characterized in that The pushing portion (35) is a top sleeve provided on the cutting blade holder (17), and the top sleeve is rotatably provided on one end of the cutting blade holder (17) close to the centrifugal cam (34); the limiting portion A (25) is a limiting strip (251) and two limiting sleeves A (252) provided on the swing seat A (24) and limitedly matched with one end of the cutting blade holder (17); the two limiting sleeves A (252) are arranged at both ends of the limiting strip (251), and the spacing between the two limiting sleeves A (252) matches the size of the corresponding end of the cutting blade holder (17); the limiting portion B (33) is two limiting sleeves B (331) provided on the swing seat B (31) and limitedly matched with the other end of the cutting blade holder (17), and the spacing between the two limiting sleeves B (331) matches the size of the corresponding end of the cutting blade holder (17); the two sets of swing mechanisms are connected to the driving motor (42) through a synchronous assembly.

3. The automatic capsule cutting machine according to claim 2, characterized in that The synchronization assembly comprises a transmission shaft (37) disposed horizontally on a machine base plate (181), meshing bevel gears A (38) and C (39), and meshing bevel gears B (40) and D (41), wherein the bevel gear A (38) is fixed to the lower part of a central shaft A (19), the bevel gear B (40) is fixed to the lower part of a central shaft B (26), and the bevel gears C (39) and D (41) are fixed to both ends of the transmission shaft (37); one of the central shaft A (19), the central shaft B (26), or the transmission shaft (37) is connected to a drive motor (42).

4. The automatic capsule cutting machine according to claim 2, characterized in that The synchronous assembly comprises two sprockets and a matching chain, wherein the two sprockets are respectively fixed to the lower part of the central axis A (19) and the lower part of the central axis B (26), and one of the central axis A (19) or the central axis B (26) or the matching chain is connected to the driving motor (42) through transmission, or the synchronous assembly comprises two synchronous wheels and a matching synchronous belt, wherein the two synchronous wheels are respectively fixed to the lower part of the central axis A (19) and the lower part of the central axis B (26), and one of the central axis A (19) or the central axis B (26) or the matching synchronous belt is connected to the driving motor (42) through transmission.

5. The automatic capsule cutting machine according to claim 1, characterized in that The cutting lifting mechanism comprises two cutting push rods (44) which are inserted through the machine base plate (181) and are movable in lifting and lowering. The cutting tool holder (17) is provided with two mounting holes (50) which match the cutting push rods (44). The cutting push rods (44) pass through the cutting tool holder (17). The two cutting push rods (44) are connected at the top and bottom ends respectively by a cutting upper cross bar (45) and a cutting lower cross bar (46). The cutting lower cross bar (46) is provided with a cutting roller (47) which matches a cutting lifting cam (48) below. The cutting lifting cam (48) is fixed on a transverse main transmission shaft (49). The main transmission shaft (49) is drivingly connected to the reduction motor (43) on the frame (18); the two cutting mandrels (44) are provided with a conical reducing section (51) matching the mounting hole (50); the conical reducing section (51) increases in diameter from top to bottom; the inner wall of the mounting hole (50) is provided with an annular surface (30) matching the shape of the conical reducing section (51); when the annular surface (30) is in contact with the conical reducing section (51), the cutting tool holder (17) moves up and down along with the cutting mandrel (44); when the cutting tool holder (17) is lowered to the lowest position, its two ends are respectively supported on the swing seat A (24) and the swing seat B (31).

6. The automatic capsule cutting machine according to claim 5, characterized in that The blank feeding ejector pin (32) and the finished product unloading ejector pin (52) are driven to be synchronously lifted and lowered by the same feeding lifting mechanism movably arranged on the machine base plate (181). The feeding lifting mechanism comprises a long horizontal frame (54) fixed on the machine base plate (181) corresponding to the feeding station and a short horizontal frame (55) corresponding to the unloading station, and two feeding ejector pins (56) penetrating the machine base plate (181) and the long horizontal frame (54) for lifting and lowering movement. The two feeding ejector pins (56) are connected at the top and bottom ends respectively by a feeding upper horizontal bar (57) and a feeding lower horizontal bar (58). The feeding lower horizontal bar (58) is provided with a plurality of lifting and lowering pins. A feeding roller (59) is provided to match a feeding lifting cam (60) below, the feeding lifting cam (60) is fixed on the main transmission shaft (49), a plurality of feeding guide holes matching the blank feeding ejector pins (32) are opened on the long cross frame (54), a plurality of discharge guide holes matching the finished product discharge ejector pins (52) are opened on the short cross frame (55), a group of blank feeding ejector pins (32) and a group of finished product discharge ejector pins (52) are mounted on the feeding upper cross piece (57), and the blank feeding ejector pins (32) and the finished product discharge ejector pins (52) are lifted and lowered along with the feeding upper cross piece (57).

7. The automatic capsule cutting machine according to claim 6, characterized in that The long horizontal frame (54) is provided with a plurality of mounting columns of equal height and a horizontal feeding guide plate is mounted thereon, wherein the feeding guide plate is provided with a group of feeding guide holes aligned with the feeding guide holes on the long horizontal frame (54); the short horizontal frame (55) is provided with a plurality of mounting columns of equal height and a horizontal unloading guide plate is mounted thereon, wherein the unloading guide plate is provided with a group of unloading guide holes aligned with the unloading guide holes on the short horizontal frame (55).

8. The automatic capsule cutting machine according to claim 5, characterized in that The intermittent rotation mechanism comprises a cam divider (4) fixed to the bottom surface of a machine base plate (181), an intermittent output gear (5) fixed to the output shaft of the cam divider (4), a gear ring (6) fixed to the bottom of the cutting turntable (1), and two bridge gears. The output shaft of the cam divider (4) is vertically arranged on the machine base plate (181), the two bridge gears are vertically arranged on the same rotating shaft (7) vertically arranged on the machine base plate (181), and the upper bridge gear (8) and the lower bridge gear (9) are respectively meshed with the gear ring (6) and the intermittent output gear (5). The feeding turntable (16) is fixed to the upper end of the output shaft of the cam divider (4), and the input shaft of the cam divider (4) is drivingly connected to the main transmission shaft (49).

9. The automatic capsule cutting machine according to claim 5, characterized in that The cutting turntable (1) has four groups of cutting die holes (3) evenly distributed around the circumference and distributed on four cutting discs (2). The cutting discs (2) are provided with flanges at the circumference thereof and matched with the cutting discs (1). The cutting discs (2) can be detachably mounted on the cutting turntable (1). The surface of the cutting turntable (1) is provided with concave holes (15) matching with the cutting discs (2) around the circumference thereof. The cutting discs (2) are partially embedded in the concave holes (15). The flanges on the cutting discs (2) are The cutting disc (1) is supported on the edge of the recessed hole (15); a detachable fastener (14) is provided between two adjacent cutting discs (2); a butt-jointed limiting structure is provided between the fastener (14) and the cutting disc (2) at adjacent edges; the limiting structure is a protrusion (10) and a notch (11) of matching shapes; one of the protrusion (10) and the notch (11) is provided on the fastener (14), and the other is provided on the cutting disc (2).

10. The automatic capsule cutting machine according to claim 9, characterized in that A hollow shaft (61) is fixedly provided on the cutting base (53), and the cutting turntable (1) is rotatably connected to the hollow shaft (61) via a bearing. A cutting positioning pin (62) is provided through a hole in the cutting base (53) and can be extended upward to position the cutting disc (2) at the cutting station. The cutting disc (2) is provided with a pin hole (63) which can be plugged with the cutting positioning pin (62). The cutting positioning pin (62) is movably provided on a mounting seat (65) fixed on the bottom surface of the cutting base (53) via a spring (64). The mounting seat (65) is provided with a channel through which the cutting positioning pin (62) is passed. The spring (64) is provided in the channel and sleeved on the cutting positioning pin (62). The cutting positioning pin (62) elastically extends upward from the cutting base (53) under the action of the spring (64) and is inserted into the pin hole (63). The bottom of the mounting seat (65) is provided with a A swingable pressure rod (66) is provided, the middle part of the pressure rod (66) is axially connected to the mounting seat (65), one end of the pressure rod (66) is sleeved and limited at the lower part of the cutting positioning pin (62), a limit piece (67) is provided at the lower part of the cutting positioning pin (62) to abut the sleeved end of the pressure rod (66) upwardly, the other end of the pressure rod (66) is a free end, an unlocking push rod (68) extending upwardly is provided on the cutting lower cross piece (46), the unlocking push rod is provided with a head (12), when the cutting lower cross piece (46) rises, the unlocking push rod (68) is driven to move upward to push the free end of the pressure rod (66) to rotate the pressure rod (66), one end of the pressure rod (66) sleeved with the cutting positioning pin (62) moves downward and pulls the cutting positioning pin (62) down, so that the cutting positioning pin (62) is separated from the pin hole (63), and the cutting positioning pin (62) is compressed when the cutting positioning pin (62) moves downward. The spring (64) is compressed.

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