A paper cover machine with integrated creasing

Abstract

The present invention discloses a paper cover machine with integrated creasing. The key technical solution comprises a paper cover forming device, the feed end of which is provided with a creasing unit capable of creasing paper cover stock. The creasing unit comprises a fixed blade fixed to a machine frame, a creasing die slidably connected to the machine frame, and a creasing drive device for driving the creasing die toward or away from the fixed blade. The paper cover machine is capable of creasing paper cover stock.

Description

Technical Field

[0001] The present invention relates to the technical field of paper cover processing equipment, and more particularly to a paper cover machine with integrated creasing function. Background Art

[0002] In the catering industry, paper cups or bowls are used to hold drinks and food, and they are often fitted with plastic lids for insulation, packaging, and storage. However, with increasing environmental awareness, plastic lids are gradually being replaced by more environmentally friendly paper lids. Currently, paper lid machines primarily transport raw paper sheets, then fold, nest, and compact the sheets through multiple molds. Folding forms the entire sheet into a cylindrical shape, nesting causes the bottom of the sidewall to bend inward, and compacting forms the inwardly bent sidewalls into a single piece with the outer wall.

[0003] However, the existing paper cover machine does not have the function of indenting the paper sheet. Indentation can form a folded edge on the surface paper of the paper cover or even on the paper ring, which is beneficial to improving the appearance and structural strength of the paper cover, making the paper cover less likely to deform and thus extending its service life. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a paper capping machine with integrated creasing function, which can perform creasing operations on paper caps.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a paper cover machine with integrated creasing, comprising a paper cover forming device, wherein the feed end of the paper cover forming device is provided with a creasing part capable of creasing paper cover raw materials, the creasing part comprising a fixed knife plate fixed to a machine frame, a creasing die slidably connected to the machine frame, and a creasing drive device for driving the creasing die toward or away from the fixed knife plate.

[0006] The present invention is further configured as follows: the paper cover machine further comprises a paper rack assembly for placing a paper cover roll, an oiling assembly located at a feed end of the creasing assembly for oiling the paper cover strip, a bottom folding assembly located at a discharge end of the creasing assembly for cutting paper cover sheets from the paper cover strip and folding the bottoms of the paper cover sheets, and a paper feed roller assembly located between the bottom folding assembly and the creasing assembly for pulling the paper cover strip into the bottom folding assembly at intervals, wherein the creasing assembly is located at the discharge end of the paper rack assembly and is capable of performing a creasing operation on the discharged paper cover strip.

[0007] The paper rack assembly includes a paper feed bracket and a paper rack driving device for driving the paper cover roll connected to the paper feed bracket to rotate;

[0008] The oiling part comprises an oiling support plate fixedly mounted on the frame, an oiling pressing member capable of pressing on the paper cover strip, an oiling driving device for driving the oiling pressing member to move closer to or away from the paper cover strip, a silicone oil pad mounted on the side of the oiling pressing member facing the paper cover strip, and an oil supply device for supplying oil to the silicone oil pad;

[0009] The paper feeding roller group includes a paper feeding driven roller and a paper feeding active roller for clamping and conveying the paper cover strip, and a paper feeding driving device for driving the paper feeding active roller to rotate, and the axial directions of the paper feeding driven roller and the paper feeding active roller are arranged parallel to each other;

[0010] The bottom folding device includes a folding die fixed to a frame, a folding punching knife slidably connected to the frame, and a folding driving device for driving the folding punching knife to move closer to or away from the folding die, the folding punching knife is arranged in an annular structure, the outer edge of the end of the folding die and the inner edge of the end of the folding punching knife are both provided with cutting edges, and the two cutting edges can realize shearing action when the bottom folding driving device drives the folding punching knife to be sleeved on the folding die, the middle part of the folding die is arranged in a hollow structure, the middle part of the folding punching knife is provided with a folding head that can be ejected from the middle part of the folding die, and the bottom folding device also includes a head driving device that can drive the folding head to eject the cut paper cover piece from the middle part of the folding die;

[0011] The middle part of the folding die is provided with a paper cover channel for the paper cover sheet to slide out, one end of the paper cover channel is connected to the folding head, and the other end is connected to the feed of the paper cover forming device, the outer diameter of the folding head is adapted to the inner diameter of the paper cover channel, an annular bottom folding pre-pressing ring and a bottom folding pre-pressing die are provided between the folding punch and the folding head, the annular bottom folding pre-pressing die is coaxially arranged on the outside of the folding head, and the annular bottom folding pre-pressing ring is coaxially arranged on the outside of the bottom folding pre-pressing die, when the folding punch approaches the folding die, the bottom folding pre-pressing ring can press the paper cover sheet onto the folding die during the shearing action of the two cutting edges, the end parts of the paper cover channel and the end parts of the bottom folding pre-pressing die are provided with a folding structure capable of folding the paper cover sheet, and after the two cutting edges perform the shearing action, the bottom folding pre-pressing die and the folding die can perform the folding action through the folding structure.

[0012] The present invention is further configured as follows: one end of the paper feeding bracket is rotatably connected to the frame, and the other end of the paper feeding bracket is provided with a paper feeding shaft that can be inserted into the middle of the paper cover roll; the frame is provided with a lifting drive device that can drive the paper feeding bracket to rotate around the rotating axis of the frame; the lifting drive device can drive the paper feeding shaft close to or away from the ground during the rotation of the paper feeding bracket; the paper feeding shaft and the paper feeding bracket are separately arranged; the paper feeding bracket is provided with a placement notch for placing the paper feeding shaft, and the placement notch is arranged upward; the paper rack driving device includes a magnetic powder brake and is fixed on the paper feeding bracket; the magnetic powder brake is transmission-connected to the paper feeding shaft.

[0013] The present invention is further configured as follows: the paper feeding bracket is rotatably connected to a guide roller for winding the paper cover strip, a paper feed driven roller and a paper feed active roller for clamping and conveying the paper cover strip, and a paper feed driving device for driving the paper feed active roller to rotate, the axial directions of the paper feed driven roller and the paper feed active roller are arranged in parallel, and the paper holder part also includes a printing device capable of printing on the paper cover strip, and the printing device is located between the guide roller and the paper feed active roller.

[0014] The present invention is further configured as follows: the oil-point pressing member is slidably connected to the frame, and the sliding direction is close to or away from the oil-point supporting plate, the oil-point pressing member includes an oil-point tray for installing the silicone oil pad, the oil-point tray is provided with an oil-point cavity for accommodating the silicone oil pad, and the oil-point tray is provided with an oil-point pressure plate for fixing the silicone oil pad in the oil-point cavity, the silicone oil pad is arranged in a hollow annular frustum structure, the inner wall of the oil-point cavity is abutted against the inclined outer wall of the silicone oil pad, the outer wall of the oil-point pressure plate is abutted against the inclined inner wall of the silicone oil pad, the silicone oil pad clamped between the inner wall of the oil-point cavity and the outer wall of the oil-point pressure plate extends out of the end faces of the oil-point tray and the oil-point pressure plate, and the oil supply device includes a glass jar that can be used to store edible lubricating oil, and an oil supply pipe connecting the glass jar and the oil-point cavity.

[0015] The present invention is further configured as follows: a soft belt for holding paper cover strip material is connected between the discharge end of the paper holder part and the feed end of the oiling part. The soft belt is made of metal in a thin sheet-like structure, and the middle part of the soft belt always remains drooping under gravity.

[0016] The present invention is further configured as follows: the oil-dotting driving device and the indentation driving device include a driving lever rotatably connected to a frame; the frame is provided with a lever driving device capable of driving the driving lever to rotate on the frame; a rotating connecting rod is rotatably connected between the driving lever and the oil-dotting pressing piece and between the driving lever and the indentation mold; and when the lever driving device drives the driving lever to rotate on the frame, the oil-dotting pressing piece and the indentation mold can be driven to slide through the rotating connecting rod.

[0017] The present invention is further configured as follows: the paper feeding drive device is fixed on the frame and its output end is transmission-connected to the paper feeding active roller, the frame is rotatably connected with a paper feeding rotary frame for rotatingly connecting the paper feeding driven roller, the rotation axis of the paper feeding rotary frame on the frame is arranged parallel to the axis of the paper feeding driven roller, the frame is provided with a rotation driving device that can be used to drive the paper feeding rotary frame to rotate on the frame, and the rotation driving device can drive the paper feeding driven roller to approach or move away from the paper feeding active roller during the process of driving the paper feeding rotary frame to rotate on the frame, and the paper feeding roller group also includes a sensor for detecting the indentation position of the paper cover strip after it is installed by the indentation part, and the sensor can control the opening and closing of the paper feeding drive device after detecting the information to be measured.

[0018] The present invention is further configured as follows: the bottom folding drive device includes a pre-stressing top plate slidingly connected to the frame, the folding punch is fixedly connected to the side of the pre-stressing top plate facing the folding mold, and a pre-stressing push rod is fixedly arranged on the other side of the pre-stressing top plate, and the pre-stressing push rod is arranged in a hollow structure, and the head driving device includes a folding push rod slidingly connected in the pre-stressing push rod for driving the folding head.

[0019] The present invention is further configured as follows: the outer shell of the folding die is provided with a discharge plate which is slidably connected to the frame, and a return spring which can push the discharge plate to be located at the end of the folding die is abutted between the discharge plate and the frame. When the folding punch approaches the folding die, the discharge plate can be pushed to slide while the return spring is compressed.

[0020] In summary, the present invention has the following beneficial effects: the creasing drive device drives the creasing die to creasing the paper cover stock located between the fixed blade and the creasing die, and the fixed blade facing the creasing die and / or the creasing die facing the fixed blade are provided with hemming teeth capable of forming a hem on the paper cover stock. Therefore, the fixed blade and the creasing die cooperate to form a hem on the paper cover stock, thereby improving the aesthetics and structural strength of the paper cover, making the paper cover less susceptible to deformation and thereby extending its service life. Furthermore, by controlling the size of the hemming teeth, the position of the hem formed on the facial tissue or even on the paper ring can be adjusted, thereby increasing the flexibility of the creasing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a paper cover machine with integrated creasing;

[0022] Figure 2 This is a structural diagram of a paper cover machine with integrated creasing;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the oiling part and the indentation part;

[0024] Figure 4It is a schematic diagram of the three-dimensional structure of one side of the paper holder assembly;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the other side of the paper holder assembly;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the connection between the oil-dispensing assembly and the paper rack assembly;

[0027] Figure 7 It is a cross-sectional view of the oil-point pressing member;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the paper feeding roller assembly and the folding bottom assembly;

[0029] Figure 9 It is a schematic diagram of the three-dimensional structure of the paper feed roller group;

[0030] Figure 10 It is a schematic diagram of the three-dimensional structure of the folding bottom;

[0031] Figure 11 This is a cross-sectional view of the partially folded bottom assembly.

[0032] Figure numerals: 1. Paper rack assembly; 11. Paper feed bracket; 111. Placement notch; 12. Paper rack drive device; 13. Paper feed shaft; 14. Lifting drive device; 15. Guide roller; 16. Paper feed driven roller; 17. Paper feed active roller; 18. Paper feed drive device; 19. Pocket material soft belt; 2. Oiling assembly; 21. Oiling support plate; 22. Oiling pressing member; 221. Oiling tray; 222. Oiling chamber; 223. Oiling pressure plate; 23. Oiling drive device; 24. Silicone oil pad; 25. Oil supply device; 3. Indentation assembly; 31. Fixed blade; 32. Indentation mold; 33. Indentation drive device; 4. Paper feed roller group; 41. Paper feed driven roller; 42 , paper feeding active roller; 43, paper feeding drive device; 44, paper feeding rotating frame; 45, rotation drive device; 46, sensor; 5, bottom folding device; 51, folding die; 511, paper cover channel; 52, folding punch; 53, bottom folding drive device; 531, pre-pressure top plate; 532, pre-pressure push rod; 54, folding head; 55, head drive device; 551, folding push rod; 56, bottom folding pre-pressure ring; 57, bottom folding pre-pressure die; 58, unloading plate; 59, reset spring; 6, waste paper channel; 61, feed baffle; 7, frame; 71, drive lever; 72, lever drive device; 73, rotating connecting rod; 8, paper cover coil; 9, paper cover forming device. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0034] Reference Figure 1-11 As shown, a paper cover machine with integrated creasing includes a paper cover forming device 9. This paper cover forming device 9 can be similar to existing paper cover processing equipment. A creasing unit 3 is provided at the feed end of the paper cover forming device 9 for creasing the paper cover stock. The creasing unit 3 includes a fixed blade 31 fixed to a machine frame 7, a creasing die 32 slidably connected to the machine frame 7, and a creasing drive 33 for driving the creasing die 32 toward or away from the fixed blade 31. The creasing drive 33 drives the creasing die 32 to creasing the paper cover stock positioned between the fixed blade 31 and the creasing die 32. Flanging teeth are provided on the side of the fixed blade 31 facing the creasing die 32 and / or on the side of the creasing die 32 facing the fixed blade 31 to form a folded edge on the paper cover stock. Thus, the fixed blade 31 and the creasing die 32 cooperate to form a folded edge on the paper cover stock, thereby improving the aesthetics and structural strength of the paper cover, preventing deformation, and thus extending its service life. Furthermore, by controlling the size of the hemming teeth, the position of the hemming formed on the tissue paper or even on the paper ring can be adjusted, which is beneficial to improving the flexibility of the creasing device 3 .

[0035] The paper cover machine also includes a feeding device, which includes a paper rack assembly 1 for placing a paper cover roll 8, an oiling assembly 2 located at the infeed end of the creasing assembly 3 for applying oil to the paper cover strip, a bottom folding assembly 5 located at the discharge end of the creasing assembly 3 for cutting paper cover sheets from the paper cover strip and folding the sheets at the bottom, and a paper feed roller assembly 4 located between the bottom folding assembly 5 and the creasing assembly 3 for pulling the paper cover strip into the bottom folding assembly 5. The creasing assembly 3 is located at the discharge end of the paper rack assembly 1 and is capable of performing an indentation operation on the discharged paper cover strip. The position of the indentation mold 32 corresponding to the paper cover strip corresponds to the position of the oiling assembly 2 on the paper cover strip, thereby facilitating the indentation operation of the creasing assembly 3 on the paper cover strip. The paper rack assembly 1, the oiling assembly 2, the creasing assembly 3, the paper feed roller assembly 4, and the bottom folding assembly 5 are arranged adjacent to each other end to end.

[0036] The paper rack assembly 1 includes a paper feeding bracket 11 and a paper rack driving device 12 for driving the paper cover roll 8 connected to the paper feeding bracket 11 to rotate; the paper rack driving device 12 can release the paper cover material during the process of driving the paper cover roll 8 to rotate.

[0037] The oiling unit 2 includes an oiling support plate 21 fixedly arranged on the frame 7, an oiling pressing member 22 capable of pressing on the paper cover strip, an oiling driving device 23 for driving the oiling pressing member 22 to move closer to or away from the paper cover strip, a silicone oil pad 24 arranged on the side of the oiling pressing member 22 facing the paper cover strip, and an oil supply device 25 for supplying oil to the silicone oil pad 24; the oiling pressing member 22 is slidably connected to the frame 7, and the oiling driving device 23 can press and oil the paper cover strip located on the oiling support plate 21 by driving the oiling pressing member 22.

[0038] The paper feed roller group 4 includes a paper feed driven roller 41 and a paper feed active roller 42 for clamping and conveying the paper cover strip, and a paper feed driving device 43 for driving the paper feed active roller 42 to rotate. The axial directions of the paper feed driven roller 41 and the paper feed active roller 42 are arranged in parallel; the paper feed driven roller 41 and the paper feed active roller 42 are respectively clamped on opposite sides of the paper cover strip, and the paper feed driving device 43 can cooperate with the paper feed driven roller 41 to pull the paper cover strip during the process of driving the paper feed active roller 42 to rotate.

[0039] The bottom folding device 5 includes a folding die 51 fixed on the frame 7, a folding punch 52 slidably connected to the frame 7, and a folding drive device 53 for driving the folding punch 52 to approach or move away from the folding die 51. The folding punch 52 is arranged in a ring structure. The outer edge of the end of the folding die 51 and the inner edge of the end of the folding punch 52 are both provided with cutting edges. In the process of the folding drive device 53 driving the folding punch 52 to be sleeved on the folding die 51, the two cutting edges can To achieve the shearing action, the middle part of the folding die 51 is set as a hollow structure, and the middle part of the folding punch 52 is provided with a folding head 54 that can be ejected from the middle part of the folding die 51. The folding bottom device 5 also includes a head driving device 55 that can drive the folding head 54 to eject the cut paper cover piece from the middle part of the folding die 51; after the shearing operation of the two cutting edges, the folding punch 52 is sleeved on the outside of the folding die 51, and the paper cover piece cut from the paper cover strip remains at the end of the folding die 51.

[0040] A paper cover channel 511 for the paper cover to slide out is provided in the middle of the folding die 51. One end of the paper cover channel 511 is connected to the folding head 54, and the other end is connected to the feed of the paper cover forming device 9. The outer diameter of the folding head 54 is adapted to the inner diameter of the paper cover channel 511. An annular bottom folding pre-pressing ring 56 and a bottom folding pre-pressing die 57 are provided between the folding punch 52 and the folding head 54. The annular bottom folding pre-pressing die 57 is coaxially arranged on the outside of the folding head 54. The bottom folding pre-pressing ring 56 is coaxially arranged on the outside of the bottom folding pre-pressing die 57. When the folding punch 52 approaches the folding die 51, the bottom folding pre-pressing ring 56 can press the paper cover piece onto the folding die 51 during the shearing action of the two cutting edges. The end of the paper cover channel 511 and the end of the bottom folding pre-pressing die 57 are provided with a folding structure that can fold the paper cover piece. After the two cutting edges perform the shearing action, the bottom folding pre-pressing die 57 and the folding die 51 can perform the folding action through the folding structure. In the process of the bottom folding drive device 53 driving the folding punch 52 to be sleeved on the folding die 51, the bottom folding pre-pressing ring 56 can press the outer edge of the paper cover piece against the end of the folding die 51 when the two cutting edges are shearing. Therefore, after the two cutting edges complete the shearing action, the paper cover piece will be pressed against the end of the folding die 51 by the bottom folding pre-pressing ring 56, and then the bottom folding pre-pressing die 57 will cooperate with the folding die 51 to fold the edge of the paper cover piece, and then the folding head 54 will be driven by the head driving device 55 to send the paper cover piece into the paper cover channel 511, and after passing through the paper cover channel 511, it will be sent to the feed end of the paper cover forming device 9.

[0041] The above-mentioned feeding device can, through the sequentially arranged paper rack unit 1, oiling unit 2, creasing unit 3, paper feeding roller group 4, and bottom folding unit 5, send the initially formed paper cover sheet to the feeding end of the paper cover forming device 9 after the paper cover strip is sequentially subjected to oiling, creasing, shearing, and folding operations, and can realize the feeding operation of the paper cover roll 8. The feeding frequency of the above-mentioned feeding device can be adjusted by only adjusting the diameter size of the paper cover roll 8, thereby eliminating the need for frequent manual stacking, greatly reducing the labor intensity of workers, and even a paper cover machine only needs 1-3 loading times a day, which can effectively reduce the employment cost of the production enterprise.

[0042] One end of the paper feeding bracket 11 is rotatably connected to the frame 7, and the other end of the paper feeding bracket 11 is provided with a paper feeding shaft 13 that can be inserted into the middle of the paper cover roll 8. The frame 7 is provided with a lifting drive device 14 that can drive the paper feeding bracket 11 to rotate around the rotation axis of the frame 7. The lifting drive device 14 drives the paper feeding bracket 11 to rotate and can drive the paper feeding shaft 13 close to or away from the ground during the process. The paper feeding shaft 13 and the paper feeding bracket 11 are separately arranged, and a placement notch 111 for placing the paper feeding shaft 13 is provided on the paper feeding bracket 11. The placement notch 111 is arranged upward, and the paper rack driving device 12 includes a magnetic powder brake and is fixed on the paper feeding bracket 11. The magnetic powder brake is transmission-connected to the paper feeding shaft 13. The output end of the magnetic powder brake can be fixedly connected to a gear, and a gear can be coaxially fixedly connected to the paper feed shaft 13. The paper feed shaft 13 passes through the middle of the paper cover roll 8 and is mounted on the paper feed bracket 11 through the mounting notch 111. The two gears are meshed, and when the magnetic powder brake drives the paper feed shaft 13 to rotate via the two meshing gears, paper feeding can be achieved. The aforementioned lifting drive device 14 can use a cylinder to conveniently drive the paper feed bracket 11 to rotate on the frame 7. The cylinder configuration facilitates the placement of the paper feed shaft 13 into the mounting notch 111, eliminating the need to manually lift the paper feed shaft 13 passing through the paper cover roll 8 onto the paper feed bracket 11, thereby improving the convenience and automation of replacing the paper cover roll 8.

[0043] The paper feed bracket 11 is rotatably connected to a guide roller 15 for winding the paper cover strip, a paper feed driven roller 16 and a paper feed active roller 17 for clamping and conveying the paper cover strip, and a paper feed drive device 18 for driving the paper feed active roller 17 to rotate. The axial directions of the paper feed driven roller 16 and the paper feed active roller 17 are arranged parallel to each other. The paper holder assembly 1 also includes a printing device capable of printing on the paper cover strip, and the printing device is located between the guide roller 15 and the paper feed active roller 17. The paper feed driven roller 16 and the paper feed active roller 17 are respectively clamped on opposite sides of the paper cover strip. The paper feed driving device 18 can drive the paper feed active roller 17 to rotate and cooperate with the paper feed driven roller 16 to pull the paper cover strip. Therefore, the paper cover strip is tensioned between the paper feed shaft 13 and the paper feed active roller 17, and can be used for printing by the printer set on the paper feed bracket 11. In addition, the setting of the guide roller 15 can realize the regulation of the conveying path position of the paper cover strip to facilitate the smooth entry of the paper cover strip into the feed port of the printer.

[0044] The oil point pressing member 22 is slidably connected to the frame 7, and the sliding direction is close to or away from the oil point supporting plate 21. The oil point pressing member 22 includes an oil point plate 221 for installing the silicone oil pad 24. The oil point plate 221 is provided with an oil point cavity 222 for accommodating the silicone oil pad 24. An oil point pressure plate 223 for fixing the silicone oil pad 24 in the oil point cavity 222 is provided in the oil point plate 221. The silicone oil pad 24 is arranged in a hollow annular frustum structure. The inner wall of the cavity 222 abuts the inclined outer wall of the silicone oil pad 24, and the outer wall of the oil application pressure plate 223 abuts the inclined inner wall of the silicone oil pad 24. The silicone oil pad 24, held between the inner wall of the oil application cavity 222 and the outer wall of the oil application pressure plate 223, extends beyond the end surfaces of the oil application tray 221 and the oil application pressure plate 223. The oil supply device 25 includes a glass jar for storing edible lubricating oil and an oil supply pipe connecting the glass jar and the oil application cavity 222. The glass jar can be used to hold edible lubricating oil, which is then introduced into the oil application cavity 222 through the oil supply pipe to soak the silicone oil pad 24. The silicone oil pad 24 is clamped and fixed to the inner wall of the oil application cavity 222 by the oil application pressure plate 223. This mounting structure not only effectively mounts the silicone oil pad 24, but also ensures that the edible lubricating oil in the oil application cavity 222 does not interfere with its soaking, thereby facilitating effective oiling of the silicone oil pad 24 during the oil application operation.

[0045] A flexible belt 19, designed to hold the paper cover strip, is connected between the paper holder assembly 1 and the oil dispenser assembly 2. This belt 19 is a thin metal sheet with its center portion constantly drooping under gravity. This belt catches any drooping paper cover strip, preventing it from contacting other components or even falling to the ground and becoming contaminated.

[0046] The oil-dispensing drive device 23 and the indentation drive device 33 include a driving lever 71 rotatably connected to the frame 7. The frame 7 is provided with a lever driving device 72 that can drive the driving lever 71 to rotate on the frame 7. A rotating connecting rod 73 is rotatably connected between the driving lever 71 and the oil-dispensing pressing member 22 and between the driving lever 71 and the indentation mold 32. When the lever driving device 72 drives the driving lever 71 to rotate on the frame 7, the oil-dispensing pressing member 22 and the indentation mold 32 can be driven to slide through the rotating connecting rod 73. The setting of the driving lever 71 can facilitate the synchronous operation of the oil-dotting driving device 23 and the indentation driving device 33. When the oil-dotting pressing member 22 is located above the oil support plate and the indentation mold 32 is located below the fixed knife plate 31, the two rotating connecting rods 73 can be respectively connected to the driving lever 71 on the opposite sides of the rotating axis of the frame 7. When the oil-dotting pressing member 22 is located above the oil support plate and the indentation mold 32 is located above the fixed knife plate 31, or when the oil-dotting pressing member 22 is located below the oil support plate and the indentation mold 32 is located below the fixed knife plate 31, the two rotating connecting rods 73 can be connected to one side of the driving lever 71 on the rotating axis of the frame 7.

[0047] The paper feeding drive device 43 is fixed on the frame 7 and its output end is transmission-connected to the paper feeding active roller 42. The frame 7 is rotatably connected to a paper feeding rotating frame 44 for rotatingly connecting the paper feeding driven roller 41. The rotation axis of the paper feeding rotating frame 44 on the frame 7 is arranged parallel to the axis of the paper feeding driven roller 41. The frame 7 is provided with a rotating driving device 45 that can be used to drive the paper feeding rotating frame 44 to rotate on the frame 7. The rotating driving device 45 drives the paper feeding rotating frame 44 to rotate on the frame 7, which can drive the paper feeding driven roller 41 to approach or move away from the paper feeding active roller 42. The paper feeding roller group 4 also includes a sensor 46 for detecting the indentation position of the paper cover strip after passing through the indentation part 3. After detecting the information to be measured, the sensor 46 can control the opening and closing of the paper feeding drive device 43. The paper feed drive 43 can be a motor, connected to the paper feed drive roller 42 via a gear chain. The rotation drive 45 can be a pneumatic cylinder, which drives the paper feed turret 44 to move the paper feed driven roller 41 closer to or further away from the paper feed drive roller 42, facilitating the replacement of the paper cover strip. A sensor 46 is provided to control the opening and closing of the paper feed drive 43 and detect the position of the corresponding paper cover piece on the paper cover strip.

[0048] The bottom folding drive device 53 includes a pre-stressing top plate 531 slidably connected to the frame 7, a hemming punch 52 fixedly connected to the pre-stressing top plate 531 on the side facing the hemming die 51, a pre-stressing ejector pin 532 fixedly provided on the other side of the pre-stressing top plate 531, and the pre-stressing ejector pin 532 is configured as a hollow structure. The head drive device 55 includes a hemming ejector pin 551 slidably connected to the pre-stressing ejector pin 532 for driving the hemming ejector pin 54. This structure is compact and can facilitate the operation of the hemming punch 52 and the hemming ejector pin 54.

[0049] The outer shell of the hemming die 51 is equipped with a stripper plate 58 that is slidably connected to the frame 7. A return spring 59 is connected between the stripper plate 58 and the frame 7, which can push the stripper plate 58 to the end of the hemming die 51. As the hemming punch 52 approaches the hemming die 51, it pushes the stripper plate 58 to slide, and the return spring 59 is compressed. When the two cutting edges perform the shearing action, the paper cover sheet is separated from the paper cover strip, and a notch is left in the paper cover strip. To prevent the paper cover strip from being wrapped around the hemming die 51, the stripper plate 58 is provided. Under the action of the return spring 59, the sheared paper cover strip is pushed between the hemming die 51 and the hemming punch 52, thereby facilitating the next paper cover operation.

[0050] A waste paper channel 6 may also be provided on the side of the folding bottom assembly 5 away from the paper feeding roller group 4. A feed baffle 61 is provided at the feed port of the waste paper channel 6, which can guide the paper strip into the waste paper channel 6. The feed baffle 61 guides the paper cover strip with the paper cover removed into the waste paper channel 6 to facilitate the sorting and recycling of the paper cover strip.

[0051] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the principles of the present invention are within the scope of protection of the present invention. It should be noted that improvements and modifications that do not depart from the principles of the present invention are within the scope of protection of the present invention.

Claims

1. A paper cover machine with integrated creasing function, comprising a paper cover forming device (9), characterized in that: The feeding end of the paper cover forming device (9) is provided with an indentation device (3) capable of performing an indentation operation on the paper cover raw material, the indentation device (3) comprising a fixed blade (31) fixed on the frame (7), an indentation die (32) slidably connected to the frame (7), and an indentation driving device (33) for driving the indentation die (32) to approach or move away from the fixed blade (31); The paper cover machine further comprises a paper rack assembly (1) for placing a paper cover roll (8), an oiling assembly (2) located at the feeding end of the creasing assembly (3) for oiling the paper cover strip, a bottom folding assembly (5) located at the discharging end of the creasing assembly (3) for cutting a paper cover sheet from the paper cover strip and folding the bottom of the paper cover sheet, and a paper feeding roller assembly (4) located between the bottom folding assembly (5) and the creasing assembly (3) for pulling the paper cover strip into the bottom folding assembly (5) at intervals, wherein the creasing assembly (3) is located at the discharging end of the paper rack assembly (1) and is capable of performing a creasing operation on the delivered paper cover strip. The bottom folding device (5) includes a folding die (51) fixed on a frame (7), a folding punch (52) slidably connected to the frame (7), and a bottom folding drive device (53) for driving the folding punch (52) to move closer to or away from the folding die (51). The folding punch (52) is arranged in an annular structure. The outer edge of the end of the folding die (51) and the inner edge of the end of the folding punch (52) are both provided with cutting edges. The bottom folding drive device (53) 3) When the hemming punch (52) is driven to be sleeved on the hemming die (51), the two cutting edges can realize shearing action, the middle part of the hemming die (51) is provided with a hollow structure, the middle part of the hemming punch (52) is provided with a hemming head (54) capable of being ejected from the middle part of the hemming die (51), and the hemming bottom device (5) further includes a head driving device (55) capable of driving the hemming head (54) to eject the cut paper cover sheet from the middle part of the hemming die (51); A paper cover channel (511) for the paper cover sheet to slide out is provided in the middle of the folding die (51), one end of the paper cover channel (511) is connected to the folding head (54), and the other end is connected to the feeding position of the paper cover forming device (9), the outer diameter of the folding head (54) is adapted to the inner diameter of the paper cover channel (511), an annular bottom folding pre-pressing ring (56) and a bottom folding pre-pressing die (57) are provided between the folding punch (52) and the folding head (54), and the annular bottom folding pre-pressing die (57) is coaxially arranged on the folding head (54) On the outside, an annular bottom folding pre-pressing ring (56) is coaxially arranged on the outside of the bottom folding pre-pressing die (57); when the folding punch (52) approaches the folding die (51), the bottom folding pre-pressing ring (56) can press the paper cover sheet onto the folding die (51) during the shearing action of the two cutting edges; the end of the paper cover channel (511) and the end of the bottom folding pre-pressing die (57) are provided with a folding structure capable of folding the paper cover sheet; after the two cutting edges perform the shearing action, the bottom folding pre-pressing die (57) and the folding die (51) can perform the folding action through the folding structure; The bottom folding drive device (53) includes a pre-pressing top plate (531) slidably connected to the frame (7), the folding punch (52) is fixedly connected to the side of the pre-pressing top plate (531) facing the folding die (51), and a pre-pressing ejector rod (532) is fixedly provided on the other side of the pre-pressing top plate (531), and the pre-pressing ejector rod (532) is provided in a hollow structure. The head driving device (55) includes a folding ejector rod (551) slidably connected to the pre-pressing ejector rod (532) for driving the folding ejector head (54); The outer shell of the folding die (51) is provided with a stripper plate (58) slidably connected to the frame (7); a return spring (59) is abutted between the stripper plate (58) and the frame (7) and is capable of pushing the stripper plate (58) to be located at the end of the folding die (51); when the folding punch (52) approaches the folding die (51), the stripper plate (58) can be pushed to slide and the return spring (59) is compressed.

2. The paper capping machine with integrated creasing according to claim 1, characterized in that: The paper rack assembly (1) includes a paper feed bracket (11) and a paper rack driving device (12) for driving a paper cover roll (8) connected to the paper feed bracket (11) to rotate; The oiling device (2) comprises an oiling support plate (21) fixedly arranged on a frame (7), an oiling pressing member (22) capable of pressing on the paper cover strip, an oiling driving device (23) for driving the oiling pressing member (22) to move closer to or away from the paper cover strip, a silicone oil pad (24) arranged on the side of the oiling pressing member (22) facing the paper cover strip, and an oil supply device (25) for supplying oil to the silicone oil pad (24); The paper feeding roller group (4) comprises a paper feeding driven roller (41) and a paper feeding active roller (42) for clamping and conveying a paper cover strip, and a paper feeding driving device (43) for driving the paper feeding active roller (42) to rotate. The axial directions of the paper feeding driven roller (41) and the paper feeding active roller (42) are arranged parallel to each other.

3. The paper capping machine with integrated creasing according to claim 2, characterized in that: One end of the paper feeding bracket (11) is rotatably connected to the frame (7), and the other end of the paper feeding bracket (11) is provided with a paper feeding shaft (13) capable of being inserted into the middle of the paper cover roll (8). The frame (7) is provided with a lifting drive device (14) capable of driving the paper feeding bracket (11) to rotate around the rotation axis of the frame (7). The lifting drive device (14) drives the paper feeding bracket (11) to rotate and can drive the paper feeding shaft (13) close to or away from the ground. The paper feeding shaft (13) and the paper feeding bracket (11) are separately provided. The paper feeding bracket (11) is provided with a placement notch (111) for placing the paper feeding shaft (13), and the placement notch (111) is arranged upward. The paper rack driving device (12) includes a magnetic powder brake and is fixed on the paper feeding bracket (11). The magnetic powder brake is transmission-connected to the paper feeding shaft (13).

4. The paper capping machine with integrated creasing according to claim 2, characterized in that: The paper feeding bracket (11) is rotatably connected to a guide roller (15) for winding the paper cover strip, a paper feed driven roller (16) and a paper feed active roller (17) for clamping and conveying the paper cover strip, and a paper feed driving device (18) for driving the paper feed active roller (17) to rotate. The axial directions of the paper feed driven roller (16) and the paper feed active roller (17) are arranged parallel to each other. The paper rack assembly (1) also includes a printing device capable of printing on the paper cover strip, and the printing device is located between the guide roller (15) and the paper feed active roller (17).

5. The paper capping machine with integrated creasing according to claim 2, characterized in that: The oil point pressing member (22) is slidably connected to the frame (7), and the sliding direction is close to or away from the oil point supporting plate (21). The oil point pressing member (22) includes an oil point plate (221) for installing the silicone oil pad (24). The oil point plate (221) is provided with an oil point cavity (222) for accommodating the silicone oil pad (24). An oil point pressure plate (223) for fixing the silicone oil pad (24) in the oil point cavity (222) is provided in the oil point plate (221). The silicone oil pad (24) is a hollow annular truncated cone structure. The inner wall of the oil-dotting chamber (222) is arranged to abut against the inclined outer wall of the silicone oil pad (24), and the outer wall of the oil-dotting pressure plate (223) is arranged to abut against the inclined inner wall of the silicone oil pad (24). The silicone oil pad (24) clamped between the inner wall of the oil-dotting chamber (222) and the outer wall of the oil-dotting pressure plate (223) extends out of the end faces of the oil-dotting pan (221) and the oil-dotting pressure plate (223). The oil supply device (25) includes a glass jar that can be used to store edible lubricating oil, and an oil supply pipe connecting the glass jar and the oil-dotting chamber (222).

6. The paper capping machine with integrated creasing according to claim 2, characterized in that: A soft material pocketing belt (19) capable of holding paper cover strip material is connected between the discharge end of the paper holder assembly (1) and the feed end of the oiling assembly (2). The soft material pocketing belt (19) is a thin sheet structure made of metal, and the middle part of the soft material pocketing belt (19) is always kept drooping under gravity.

7. The paper capping machine with integrated creasing according to claim 2, characterized in that: The oil point driving device (23) and the indentation driving device (33) include a driving lever (71) rotatably connected to the frame (7); the frame (7) is provided with a lever driving device (72) capable of driving the driving lever (71) to rotate on the frame (7); a rotating connecting rod (73) is rotatably connected between the driving lever (71) and the oil point pressing member (22) and between the driving lever (71) and the indentation die (32); and the lever driving device (72) can drive the oil point pressing member (22) and the indentation die (32) to slide through the rotating connecting rod (73) when the driving lever (71) is driven to rotate on the frame (7).

8. The paper capping machine with integrated creasing according to claim 2, characterized in that: The paper feeding drive device (43) is fixed on the frame (7) and its output end is transmission-connected to the paper feeding active roller (42). The frame (7) is rotatably connected to a paper feeding rotating frame (44) for rotating the paper feeding driven roller (41). The rotating axis of the paper feeding rotating frame (44) on the frame (7) is arranged parallel to the axis of the paper feeding driven roller (41). The frame (7) is provided with a rotation driving device (45) capable of driving the paper feeding rotating frame (44) to rotate on the frame (7). The rotation driving device (45) drives the paper feeding rotating frame (44) to rotate on the frame (7). The paper feeding driven roller (41) is driven to approach or move away from the paper feeding active roller (42). The paper feeding roller group (4) also includes a sensor (46) for detecting the indentation position of the paper cover strip after passing through the indentation part assembly (3). After detecting the information to be measured, the sensor (46) can control the opening and closing of the paper feeding drive device (43).

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