Orally dissolving film packaging machine

Abstract

The utility model discloses a kind of oral dissolving film packaging machines, including rack, reel-off mechanism, slitting mechanism, distance separating mechanism, first traction mechanism, cutting mechanism, stripping mechanism and reel-in mechanism are sequentially equipped on rack along material direction;Distance separating mechanism includes distance separating seat, multiple distance separating base plates are equipped on distance separating seat, multiple distance separating sleeves are equipped on each distance separating base plate with equal interval, input guide roller and output guide roller are respectively arranged on the both sides of distance separating seat input end and output end;Stripping mechanism includes stripping frame, stripping roller, stripping block and transfer-in roller are arranged on stripping frame, and electrostatic generator is arranged on stripping frame on packaging film stroke path.The utility model distance separating process is stable, high precision, material film stripping position is accurate, cutting knife reset is reliable, effectively improve oral dissolving film packaging efficiency and yield.

Description

Technical Field

[0001] This utility model relates to the technical field of oral dissolving film production equipment, specifically to an oral dissolving film packaging machine. Background Technology

[0002] Orally disintegrating films are a novel drug delivery formulation that involves loading the drug onto a soluble film material, allowing it to dissolve and be rapidly absorbed when placed in the mouth. In the production process of orally disintegrating films, a material film is typically coated onto a base film, dried to form a roll of base film containing the material film, and then the material film is slit, spaced, cut, peeled off, and sealed in a packaging film using a packaging machine.

[0003] In the prior art, Chinese utility model patent with publication number CN216581311U discloses a quick-dissolving film packaging machine, including a frame, a bottom film unwinding mechanism for unwinding a bottom film with a material film, a correction mechanism for correcting the deviation of the bottom film with the material film, a slitting mechanism for cutting the material film on the bottom film with the material film, a material film traction mechanism for traction of the slitting material film, an upper packaging film unwinding mechanism for unwinding an upper packaging film for packaging the material film, a cutting mechanism for cutting the material film traction by the material film traction mechanism to equal length, a bottom film winding mechanism for winding the bottom film after the material film has been peeled off, a lower packaging film unwinding mechanism for unwinding a lower packaging film for packaging the material film, and a heat sealing mechanism for heat sealing the upper and lower packaging films. The machine includes a waste collection device, a packaging traction mechanism, a punching mechanism, and a waste discharge and rejection device. The frame also features a slitting mechanism for separating the material film after it has been slit by the cutting mechanism. The slitting mechanism includes a guide roller and two slitting plates located behind the guide roller on the frame. The slitting plates have multiple sets of equidistantly distributed slitting structures. The oral instant films, guided by the guide roller, are twisted and then enter the slitting structures for separation before passing through the traction roller group. The slitting structures include equidistantly distributed mounting plates on the slitting plates. Each mounting plate has a rotatable first guide post. On one side of the first guide post, the mounting plate has two limiting posts spaced apart from the first guide post. A gap is formed between the first guide post and the limiting posts, allowing the oral instant films to pass through. The slitting plates have open grooves, and each mounting plate is slidably installed within the grooves.

[0004] Chinese utility model patent CN216547017U discloses a separating mechanism for a quick-dissolving film packaging machine, including a mounting wall plate. The mounting wall plate has guide rollers for guiding the slit oral quick-dissolving film. Behind the guide rollers, two sets of spaced-apart separating plates are installed on the mounting wall plate, perpendicular to the mounting wall plate. Multiple sets of equally spaced separating structures are arranged perpendicularly to the separating plates. The oral quick-dissolving film, guided by the guide rollers, twists and enters the separating structures for separation before passing through the traction roller group. The separating structures include equally spaced mounting plates on the separating plates. Each mounting plate has a rotatable first guide post. Two limiting posts, spaced apart from the first guide post, are provided on one side of the first guide post. A gap is formed between the first guide post and the limiting posts, allowing the oral quick-dissolving film to pass through. The separating plates have open grooves, and each mounting plate is slidably installed in the grooves. Each first guide post includes a first central shaft fixedly installed in the mounting plate. A sleeve is fitted over the first central shaft, with both ends of the sleeve mounted to the first central shaft via bearings.

[0005] However, the aforementioned existing technologies have the following problems: First, the separation mechanism relies on the film passing through and twisting in the gap between the guide post and the limiting post to achieve separation. During the twisting process, the film is prone to wrinkles or displacement, and the separation accuracy and stability need to be improved. Second, in the peeling process, the material film on the bottom film is transferred to the packaging film by natural peeling when the bottom film is rolled up. There is a lack of active peeling cycle control, which can easily lead to inaccurate peeling position or displacement of the material film. Third, the height adjustment of the cutting blade of the cutting mechanism lacks intuitive indication, making it difficult for operators to accurately control the cutting depth.

[0006] Therefore, it is necessary to provide a new oral dissolving film packaging machine to solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this invention is to provide an oral dissolving film packaging machine to solve the technical problems of low separation accuracy, inaccurate material film peeling position, and difficulty in accurately controlling the cutting depth in the prior art.

[0008] The technical solution adopted by this utility model to solve its technical problem is: A biosolvent packaging machine includes a frame, on which an unwinding mechanism, a slitting mechanism, a spacing mechanism, a first traction mechanism, a cutting mechanism, a peeling mechanism, and a rewinding mechanism are sequentially arranged along the material feeding direction.

[0009] At least one set of the separating mechanism is provided. Each set of the separating mechanism includes a separating seat. The separating seat is provided with multiple separating base plates from the inside to the outside. Multiple separating sleeves are provided at equal intervals along the material feeding direction on each separating base plate. Input guide rollers and output guide rollers are respectively provided on both sides of the input end and the output end of the separating seat.

[0010] The peeling mechanism includes a peeling frame with a peeling roller rotatably mounted on it. A peeling block is provided on the peeling frame above the peeling roller near the input end. A transfer roller is provided on the input end side of the peeling frame, and a second guide roller is provided below the peeling roller. An electrostatic generator is provided on the peeling frame along the packaging film travel path between the second guide roller and the transfer roller, and the working surface of the electrostatic generator is in contact with the surface of the packaging film receiving material film.

[0011] The material film on the bottom film is cut to the same length by the cutting mechanism and is electrostatically adsorbed onto the packaging film between the peeling roller and the peeling block.

[0012] By setting input and output guide rollers in the separation mechanism and opening guide grooves on the guide rollers, the slit bottom film is gradually separated along the guide grooves during the material feeding process, resulting in a smooth and highly accurate separation process. By setting an electrostatic generator on the travel path of the packaging film, the surface of the packaging film is made to have static electricity, thereby reliably adsorbing the material film on the bottom film onto the packaging film and improving the peeling success rate.

[0013] Preferably, the slitting mechanism includes a slitting frame, with slitting side plates on the inner and outer sides of the slitting frame, and a slitting roller rotatably disposed between the two slitting side plates. The slitting frame is provided with a slitting crossbeam, and multiple slitting blades are provided at equal intervals on the slitting crossbeam. This mechanism can slit the material film on the bottom film into multiple strips of material film with the same width, resulting in high slitting efficiency and good slitting accuracy.

[0014] Preferably, the slitting beam is provided with a cutter seat, the cutter seat has a wedge-shaped cross section, and the slitting blade is provided with a slot that engages with the cutter seat; this ensures that the slitting blade is securely installed, accurately positioned, and easy to disassemble and replace, effectively preventing the slitting blade from loosening after long-term use and ensuring the stability of slitting accuracy.

[0015] Preferably, the cutting mechanism includes a cutting frame, with a guide post on both the inner and outer sides of the upper side of the cutting frame, an upper blade holder between the two guide posts, and a cutting blade slidably mounted on the two guide posts below the upper blade holder. A cutting drive is provided on the lower side of the cutting frame, and the cutting drive is connected to the cutting blade. The cutting drive drives the cutting blade to move up and down on the guide posts; thus, it achieves equal-length cutting of the material film on the bottom film, with stable and reliable cutting action and good consistency in cutting length.

[0016] Preferably, both guide posts are equipped with fixing bolts on the upper and lower sides of the upper blade holder. The inner and outer ends of the upper blade holder are equipped with digital dial indicators that abut against the cutting frame. A return spring is sleeved between the two guide posts and the fixing bolts on the lower side of the upper blade holder. The digital dial indicator can visually display the height position of the upper blade holder relative to the cutting frame, facilitating precise adjustment of the blade height by the operator, thereby accurately controlling the cutting depth. After the cutting drive unit drives the blade to descend and complete the cutting, the return spring applies an upward return force to the blade, allowing it to quickly and reliably return to its initial height position. This prevents the blade from remaining stuck due to its own weight or cutting resistance, ensuring the accuracy and continuity of the next cutting action. Simultaneously, the return spring also acts as a buffer, reducing the impact and noise when the blade rises to its final position.

[0017] Preferably, the spacing seat has an elongated hole, and the spacing base plate is detachably connected to the spacing seat via fasteners and the elongated hole. Each spacing sleeve is rotatably mounted on its corresponding spacing base plate via a spacing mandrel, and the middle spacing sleeve has spacers at both its upper and lower ends. The detachable connection between the spacing base plate and the spacing seat facilitates adjustment of the spacing base plate's position to accommodate the spacing requirements of material films of different widths. The rotatable mounting of the spacing sleeve via the spacing mandrel minimizes frictional resistance when the material film passes through. The spacers at both ends of the middle spacing sleeve limit the movement of the material film on both sides, preventing the material film from deviating during the spacing process.

[0018] Preferably, both the input guide roller and the output guide roller are provided with guide grooves that are adapted to the width of the slit bottom film. The spacing between the guide grooves on the input guide roller is greater than the spacing between the freshly slit bottom films, and the spacing between the guide grooves on the output guide roller is greater than the spacing between the guide grooves on the input guide roller. This allows the bottom film to gradually separate as it passes through the separation mechanism, ensuring a smooth and abrupt separation process and preventing wrinkles or shifts in the material film due to sudden separation.

[0019] Preferably, a correction mechanism is provided between the unwinding mechanism and the slitting mechanism. The correction mechanism includes a correction frame, a correction sensor on one side of the output end of the correction frame, a correction plate on the upper side of the correction frame, and correction rollers at both ends of the correction plate. The correction plate is mounted on the correction frame via a correction drive, and the correction drive is electrically connected to the correction sensor. The correction sensor monitors the feed position of the bottom film. When the bottom film deviates, the correction sensor transmits a signal to the correction drive, which drives the correction plate and the correction rollers at both ends to move, thereby correcting the bottom film and ensuring the positional accuracy of the bottom film before entering the slitting mechanism.

[0020] Preferably, the frame is further provided with a waste removal mechanism on the output end side of the slitting mechanism, and a second traction mechanism is provided between the waste removal mechanism and the slitting mechanism. The waste edges generated after the slitting mechanism is tractioned to the waste removal mechanism for recycling by the second traction mechanism. This can promptly traction and recycle the waste edges generated after the slitting mechanism is slitted, avoiding the waste edges from tangling or accumulating and affecting the normal operation of the slitting mechanism.

[0021] Preferably, the peeling frame has a first guide roller on the side near the cutting mechanism, and the peeling block has an inwardly inclined peeling slope on the output side. The angle between the bottom surface of the peeling block and the peeling slope is an acute angle. The surface of the transfer roller has a rib protruding outward along its axial direction. The circumference of the rib as the transfer roller rotates one revolution is the same as the length of the cut material film, and the rib contacts the lower edge of the peeling slope when it rotates to the peeling position. By setting a rhythmic structure in which the rib of the transfer roller contacts the lower edge of the peeling slope, the cut material film can be peeled onto the packaging film piece by piece at a fixed length rhythm, with accurate peeling position. The acute angle structure between the bottom surface of the peeling block and the peeling slope allows the peeling slope to guide the material film to peel off from the base film at a gentler angle, reducing peeling resistance and preventing the material film from breaking during the peeling process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a side view of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the correction mechanism in an embodiment of this utility model; Figure 4 This is a schematic diagram of the slitting mechanism in an embodiment of this utility model; Figure 5 This is a utility model Figure 1 Enlarged view of point A; Figure 6 This is a schematic diagram of the cutting mechanism and the peeling mechanism in an embodiment of this utility model; Figure 7 This is a schematic diagram of the structure of the output side of the stripping mechanism in an embodiment of this utility model.

[0023] In the diagram: 1. Frame; 2. Unwinding mechanism; 3. Slitting mechanism; 31. Slitting frame; 32. Slitting side plate; 33. Slitting roller; 34. Slitting crossbeam; 35. Slitting knife; 36. Knife holder; 37. Slot; 4. Separating mechanism; 41. Separating seat; 42. Separating base plate; 43. Separating sleeve; 44. Input guide roller; 45. Output guide roller; 46. Guide groove; 47. Elongated hole; 48. Separating mandrel; 49. Spacer ring; 5. First traction mechanism; 6. Cutting mechanism; 61. Cutting frame; 62. Guide column; 63. Upper knife holder; 64. Cutting... 65. Cutting drive; 66. Fixing bolt; 67. Digital micrometer; 68. Return spring; 7. Peeling mechanism; 71. Peeling frame; 72. Peeling roller; 73. Peeling block; 74. Peeling slope; 75. First guide roller; 76. Transfer roller; 77. Second guide roller; 78. Rib; 79. Static generator; 8. Rewinding mechanism; 90. Correction mechanism; 91. Correction frame; 92. Correction sensor; 93. Correction plate; 94. Correction roller; 95. Correction drive; 10. Waste removal mechanism; 11. Second traction mechanism. Detailed Implementation

[0024] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0025] Example: Figures 1 to 7 The oral dissolving film packaging machine shown includes a frame 1, on which an unwinding mechanism 2, a slitting mechanism 3, a spacing mechanism 4, a first traction mechanism 5, a cutting mechanism 6, a peeling mechanism 7, and a rewinding mechanism 8 are arranged sequentially along the material feeding direction.

[0026] The unwinding mechanism 2 is used to unwind the base film containing the material film. The base film is the carrier film that carries the material film during the coating process. The material film is coated onto the base film and dried to form a roll of base film containing the material film. The base film can be a polymer film with certain temperature resistance and adhesion, such as PET film or PE film, and the material film is an oral dissolving agent film. The unwinding mechanism 2 includes an unwinding shaft and an unwinding roller. The base film roll is mounted on the unwinding shaft, and the unwinding roller pulls the base film downstream. The specific structure of the unwinding mechanism 2 can adopt a conventional unwinding structure in the art, such as including an unwinding motor, an unwinding shaft, and a tension control roller, as long as it can achieve stable unwinding of the base film.

[0027] The slitting mechanism 3 is located downstream of the unwinding mechanism 2 and is used to slit the base film, that is, to slit the material film on the base film into multiple strips along the feeding direction. The slitting mechanism 3 includes a slitting frame 31, with slitting side plates 32 on the inner and outer sides of the slitting frame 31, and a slitting roller 33 rotatably mounted between the two slitting side plates 32. A slitting crossbeam 34 is mounted on the slitting frame 31, and multiple slitting blades 35 are evenly spaced on the slitting crossbeam 34. The slitting roller 33 supports and guides the base film, and the slitting blades 35 slit the material film on the base film. The number and spacing of the slitting blades 35 are determined according to the number of strips and width requirements of the material film.

[0028] As one specific method of installing the slitting blade 35, a cutter seat 36 is provided on the slitting beam 34. The cutter seat 36 has a wedge-shaped cross-section, and the slitting blade 35 has a slot 37 that engages with the cutter seat 36. The wedge-shaped cross-section of the cutter seat 36 engages with the slot 37 of the slitting blade 35, ensuring that the slitting blade 35 is securely installed and accurately positioned. The cutter seat 36 and the slitting beam 34 can be detachably connected by fasteners, or they can be an integral structure. The slitting blade 35 and the cutter seat 36 can also be further fixed by fasteners. In other embodiments, the cross-section of the cutter seat 36 can also be a trapezoidal, triangular, or other wedge-shaped structure, as long as it can engage with the slot 37 of the slitting blade 35; the slitting blade 35 can also be directly installed on the slitting beam 34 by bolts, without the cutter seat 36.

[0029] At least one set of separation mechanism 4 is provided, and two sets are provided in this embodiment. Separation mechanism 4 is used to separate the cut bottom film, so that the distance between two adjacent material films gradually increases to the distance required for subsequent packaging. Separation mechanism 4 includes separation seat 41, on which a plurality of separation base plates 42 are provided from the inside to the outside. On each separation base plate 42, a plurality of separation sleeves 43 are provided at equal intervals along the material feeding direction. Input guide rollers 44 and output guide rollers 45 are respectively provided on both sides of the input end and the output end of separation seat 41.

[0030] The spacing base 41 has an elongated hole 47, and the spacing base plate 42 is detachably connected to the spacing base 41 via fasteners and the elongated hole 47. The position of the spacing base plate 42 on the spacing base 41 can be adjusted via the elongated hole 47 to accommodate the spacing requirements of material films of different widths. The fasteners can be bolts, screws, etc. In other embodiments, the spacing base plate 42 can also be slidably connected to the spacing base 41 via a groove, guide rail, or other means.

[0031] Each spacing sleeve 43 is rotatably mounted on its corresponding spacing base plate 42 via a spacing mandrel 48. The spacing sleeve 43 can rotate relative to the spacing mandrel 48. When the material film on the base film passes through the spacing sleeve 43, the spacing sleeve 43 rotates along with the material film, reducing the frictional resistance between the material film and the spacing sleeve 43 and preventing the material film from being scratched. The spacing sleeve 43 located in the middle position has spacers 49 at both its upper and lower ends. The spacers 49 are used to limit the movement of the material film and prevent it from deviating during the spacing process. In other embodiments, the spacing sleeve 43 can also be mounted on the spacing mandrel 48 via bearings.

[0032] Both the input guide roller 44 and the output guide roller 45 are provided with guide grooves 46 that are adapted to the width of the slit bottom film. The spacing of the guide grooves 46 on the input guide roller 44 is larger than the spacing between the freshly slit bottom films, and the spacing of the guide grooves 46 on the output guide roller 45 is larger than the spacing of the guide grooves 46 on the input guide roller 44. The slit bottom film enters the separating mechanism 4 via the input guide roller 44. At this time, each strip of material film on the bottom film enters the corresponding guide groove 46 on the input guide roller 44, and the strips of material film are initially separated when entering the separating mechanism 4. Subsequently, the material film passes through the separating sleeves 43 and is gradually separated under the guidance of the separating sleeves 43. Finally, it is output via the output guide roller 45, and each strip of material film has reached the required separation distance when it is output. The entire separation process is smooth and without abrupt changes, avoiding wrinkles or displacement of the material film due to sudden separation.

[0033] The first traction mechanism 5 is located downstream of the separating mechanism 4 and is used to traction the bottom film. The first traction mechanism 5 can adopt a conventional traction roller group structure in the art, including an active traction roller and a driven pressure roller. The active traction roller is driven by a motor, and the driven pressure roller presses the bottom film against the active traction roller, tractioning the bottom film through friction. The traction speed of the first traction mechanism 5 is coordinated with the unwinding speed of the unwinding mechanism 2 and the slitting speed of the slitting mechanism 3 to ensure stable tension of the bottom film among the mechanisms.

[0034] The cutting mechanism 6 is located downstream of the first traction mechanism 5 and is used to cut the material film on the bottom film to the same length. The cutting mechanism 6 includes a cutting frame 61, with a guide post 62 on both the inner and outer sides of the upper side of the cutting frame 61. An upper blade holder 63 is located between the two guide posts 62, and a cutting blade 64 is slidably mounted on the two guide posts 62 below the upper blade holder 63. A cutting drive component 65 is located on the lower side of the cutting frame 61, and the cutting drive component 65 is connected to the cutting blade 64. The cutting drive component 65 drives the cutting blade 64 to rise and fall on the guide posts 62. The cutting drive component 65 can be a cylinder, an electric push rod, a cam mechanism, etc. Driven by the cutting drive component 65, the cutting blade 64 rises or falls along the guide posts 62. When the cutting blade 64 falls, it cuts the material film on the bottom film, cutting multiple continuous material films into single pieces of material film of equal length.

[0035] Two guide pillars 62 are each equipped with fixing bolts 66 on both the upper and lower sides of the upper blade holder 63. The upper blade holder 63 is fixed to the guide pillars 62 by the fixing bolts 66 on both sides of the guide pillars 62. The height position of the upper blade holder 63 on the guide pillars 62 can be adjusted by adjusting the fixing bolts 66. Both the inner and outer ends of the upper blade holder 63 are equipped with digital micrometers 67 whose movable ends abut against the cutting frame 61. The digital micrometers 67 can intuitively display the height position of the upper blade holder 63 relative to the cutting frame 61, which is convenient for the operator to accurately adjust the height of the cutting blade 64, thereby accurately controlling the cutting depth. The digital micrometers 67 can be conventional digital display micrometers in the art, with their movable ends abutting against the cutting frame 61. When the height of the upper blade holder 63 changes, the reading of the digital micrometers 67 changes accordingly.

[0036] Two guide posts 62 are fitted with a return spring 68 between the fixing bolt 66 on the lower side of the cutting blade 64 and the upper blade holder 63. The upper end of the return spring 68 abuts against the fixing bolt 66 on the lower side of the upper blade holder 63 or the lower end face of the upper blade holder 63, and its lower end abuts against the upper end face of the cutting blade 64. When the cutting drive 65 drives the cutting blade 64 to descend along the guide posts 62 for cutting, the return spring 68 is compressed; when the cutting drive 65 is released or reversed, the elastic force of the return spring 68 pushes the cutting blade 64 upward along the guide posts 62 to return it to its initial height position quickly and reliably. The return spring 68 also acts as a buffer, reducing the impact and noise when the cutting blade 64 rises to its final position. In other embodiments, the return spring 68 can also be replaced by a disc spring, a rubber elastomer, or other components with elastic return function.

[0037] The peeling mechanism 7 is located downstream of the cutting mechanism 6 and is used to peel the material film on the base film onto the packaging film. The peeling mechanism 7 includes a peeling frame 71, on which a peeling roller 72 is rotatably mounted. A peeling block 73 is located above the peeling roller 72 near the input end of the peeling frame 71. The peeling block 73 has an inwardly inclined peeling slope 74 facing the output end. A first guide roller 75 is located on the input end side of the peeling frame 71. A transfer roller 76 is located between the first guide roller 75 and the peeling roller 72. A second guide roller 77 is located below the peeling roller 72 of the peeling frame 71.

[0038] The surface of the transfer roller 76 has protruding ribs 78 along its axial direction. The circumference of the ribs 78 as they rotate one revolution is the same as the length of the cut material film, and when the ribs 78 rotate to the peeling position, they contact the lower edge of the peeling slope 74. The cut base film is introduced by the first guide roller 75, and the single piece of material film on the base film passes through the transfer roller 76 together with the base film. The packaging film is introduced by the second guide roller 77, and passes through the electrostatic generator 79 on the travel path between the second guide roller 77 and the transfer roller 76. The working surface of the electrostatic generator 79 is in contact with the surface of the packaging film receiving the material film, generating static electricity on the surface of the packaging film. The packaging film adheres to the material film on the base film at the transfer roller 76. Due to the static electricity on the surface of the packaging film, the material film on the base film is attracted to the packaging film. Subsequently, the base film and the packaging film pass through the peeling block 73 together. Under the action of the peeling slope 74, the base film separates from the material film, and the material film is peeled onto the packaging film. Each rotation of the feed roller 76 causes the rib 78 to contact the lower edge of the peeling slope 74 once, forming a peeling cycle corresponding to the length of the material film at the peeling position. This ensures that the cut material film of a fixed length can be peeled off piece by piece and equally onto the packaging film. The peeled packaging film is output from the output end of the peeling frame 71 to the subsequent station, and the bottom film after peeling is recovered by the rewinding mechanism 8.

[0039] The electrostatic generator 79 can be a conventional electrostatic generating device in the art, such as a high-voltage electrostatic generator, an electrostatic bar, or an electrostatic roller. The electrostatic generator 79 is positioned on the packaging film travel path between the second guide roller 77 and the transfer roller 76, with its working surface in contact with the surface of the packaging film receiving material film. In this embodiment, after the packaging film is guided by the second guide roller 77, the surface of the packaging film receiving material film is the lower surface of the packaging film relative to the electrostatic generator 79. The electrostatic generator 79 is located below the packaging film, with its working surface facing upwards and in contact with the lower surface of the packaging film. After passing through the transfer roller 76, the surface of the packaging film receiving material film flips over to become the upper surface, and it is in contact with the material film on the lower surface of the bottom film.

[0040] The angle between the bottom surface of the peeling block 73 and the peeling slope 74 is an acute angle, which allows the peeling slope 74 to guide the material film to peel off from the bottom film at a gentler angle, reducing peeling resistance and preventing the material film from being damaged during the peeling process.

[0041] The rewinding mechanism 8 is located above the peeling mechanism 7 and is used to recycle the bottom film after the material film has been peeled off. The rewinding mechanism 8 includes a rewinding shaft and a rewinding roller, which is driven by a motor to wind and recycle the bottom film after the material film has been peeled off. The rewinding mechanism 8 is located above the peeling mechanism 7, which can save equipment floor space and make the material path of the bottom film more compact.

[0042] A web-correcting mechanism 9 is also provided between the unwinding mechanism 2 and the slitting mechanism 3. The web-correcting mechanism 9 includes a web-correcting frame 91, a web-correcting sensor 92 on one side of the output end of the web-correcting frame 91, a web-correcting plate 93 on the upper side of the web-correcting frame 91, and web-correcting rollers 94 at both ends of the web-correcting plate 93. The web-correcting plate 93 is mounted on the web-correcting frame 91 via a web-correcting drive component 95, which is electrically connected to the web-correcting sensor 92. The web-correcting sensor 92 monitors the feed position of the bottom film. When the bottom film deviates, the web-correcting sensor 92 transmits a signal to the web-correcting drive component 95, which drives the web-correcting plate 93 and the web-correcting rollers 94 at both ends to move, thereby correcting the deviation of the bottom film. The web-correcting sensor 92 can be an infrared sensor, a photoelectric sensor, an ultrasonic sensor, etc. The web-correcting drive component 95 can be an electric push rod, a cylinder, a servo motor, etc. The web-correcting mechanism 9 ensures the positional accuracy of the bottom film before it enters the slitting mechanism 3, thereby improving the slitting accuracy.

[0043] A waste removal mechanism 10 is also provided on one side of the output end of the slitting mechanism 3 on the frame 1. A second traction mechanism 11 is provided between the waste removal mechanism 10 and the slitting mechanism 3. The waste edges generated after slitting by the slitting mechanism 3 are pulled to the waste removal mechanism 10 for recycling by the second traction mechanism 11. The second traction mechanism 11 can be a traction roller group, and the waste removal mechanism 10 can be a waste collection box or a waste winding roller. The waste edges generated after slitting by the slitting mechanism 3 are pulled to the waste removal mechanism 10 for recycling by the second traction mechanism 11 to avoid the waste edges from tangling or accumulating and affecting the normal operation of the slitting mechanism 3.

Claims

1. An oral dissolving film packaging machine, comprising a frame (1), characterized in that, The frame (1) is provided with an unwinding mechanism (2), a slitting mechanism (3), a spacing mechanism (4), a first traction mechanism (5), a cutting mechanism (6), a peeling mechanism (7), and a rewinding mechanism (8) in sequence along the material feeding direction; at least one set of the spacing mechanism (4) is provided, and each set of the spacing mechanism (4) includes a spacing seat (41). The spacing seat (41) is provided with multiple spacing base plates (42) from the inside to the outside. Multiple spacing sleeves (43) are provided at equal intervals along the material feeding direction on each of the spacing base plates (42). The input end and the output end of the spacing seat (41) are respectively provided with an input guide roller (44) and an output guide roller (45). The peeling mechanism (7) includes a peeling frame (71), on which a peeling roller (72) is rotatably mounted. A peeling block (73) is provided on the peeling frame (71) above the peeling roller (72) near the input end. A transfer roller (76) is provided on the input end side of the peeling frame (71). A second guide roller (77) is provided below the peeling roller (72) of the peeling frame (71). An electrostatic generator (79) is provided on the packaging film travel path between the second guide roller (77) and the transfer roller (76) of the peeling frame (71). The working surface of the electrostatic generator (79) is in contact with the surface of the packaging film receiving material film. The material film on the bottom film is cut to the same length by the cutting mechanism (6) and is attracted to the packaging film by electrostatic adsorption on the surface of the packaging film between the peeling roller (72) and the peeling block (73).

2. The oral dissolving film packaging machine according to claim 1, characterized in that, The slitting mechanism (3) includes a slitting frame (31), with slitting side plates (32) on the inner and outer sides of the slitting frame (31), and a slitting roller (33) rotatably disposed between the two slitting side plates (32). A slitting crossbeam (34) is provided on the slitting frame (31), and multiple slitting blades (35) are provided at equal intervals on the slitting crossbeam (34).

3. The oral dissolving film packaging machine according to claim 2, characterized in that, The slitting beam (34) is provided with a cutter seat (36), the cutter seat (36) has a wedge-shaped cross section, and the slitting blade (35) is provided with a slot (37) that engages with the cutter seat (36).

4. The oral dissolving film packaging machine according to claim 1, characterized in that, The cutting mechanism (6) includes a cutting frame (61), and a guide post (62) is provided on both the inner and outer sides of the upper side of the cutting frame (61). An upper knife seat (63) is provided between the two guide posts (62). A cutting knife (64) is slidably provided on the lower side of the upper knife seat (63) of the two guide posts (62). A cutting drive (65) is provided on the lower side of the cutting frame (61). The cutting drive (65) is connected to the cutting knife (64). The cutting drive (65) drives the cutting knife (64) to rise and fall on the guide post (62).

5. The oral dissolving film packaging machine according to claim 4, characterized in that, The two guide posts (62) are provided with fixing bolts (66) on the upper and lower sides of the upper knife holder (63). The upper knife holder (63) is provided with a digital micrometer (67) with movable ends abutting against the cutting frame (61) at both the inner and outer ends. The two guide posts (62) are provided with a return spring (68) between the cutting blade (64) and the fixing bolts (66) on the lower side of the upper knife holder (63).

6. The oral dissolving film packaging machine according to claim 1, characterized in that, The spacing seat (41) has an elongated hole (47), and the spacing base plate (42) is detachably connected to the spacing seat (41) via fasteners and the elongated hole (47); each of the spacing sleeves (43) is rotatably mounted on the corresponding spacing base plate (42) via a spacing mandrel (48), and the upper and lower ends of the spacing sleeve (43) located in the middle position are provided with spacers (49).

7. The oral dissolving film packaging machine according to claim 1, characterized in that, Both the input guide roller (44) and the output guide roller (45) are provided with guide grooves (46) that are adapted to the width of the cut bottom film. The spacing between the guide grooves (46) on the input guide roller (44) is greater than the spacing between the cut bottom films. The spacing between the guide grooves (46) on the output guide roller (45) is greater than the spacing between the guide grooves (46) on the input guide roller (44).

8. The oral dissolving film packaging machine according to claim 1, characterized in that, A correction mechanism (9) is also provided between the unwinding mechanism (2) and the slitting mechanism (3). The correction mechanism (9) includes a correction frame (91). A correction sensor (92) is provided on one side of the output end of the correction frame (91). A correction plate (93) is provided on the upper side of the correction frame (91). Correction rollers (94) are provided at both ends of the correction plate (93). The correction plate (93) is set on the correction frame (91) through a correction drive (95). The correction drive (95) is electrically connected to the correction sensor (92).

9. The oral dissolving film packaging machine according to claim 1, characterized in that, The frame (1) is also provided with a waste removal mechanism (10) on one side of the output end of the cutting mechanism (3). A second traction mechanism (11) is provided between the waste removal mechanism (10) and the cutting mechanism (3). The waste edge generated after the cutting mechanism (3) is cut is pulled to the waste removal mechanism (10) for recycling by the second traction mechanism (11).

10. The oral dissolving film packaging machine according to claim 1, characterized in that, The peeling frame (71) has a first guide roller (75) on the side near the cutting mechanism (6). The peeling block (73) has an inwardly inclined peeling slope (74) on the side facing the output end. The angle between the bottom surface of the peeling block (73) and the peeling slope (74) is an acute angle. The surface of the transfer roller (76) has a rib (78) protruding outward along its axial direction. The circumference of the rib (78) after rotating one revolution with the transfer roller (76) is the same as the length of the cut material film. When the rib (78) rotates to the peeling position, it contacts the lower edge of the peeling slope (74).

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