Paper roll feeding mechanism, register embossing device and printing production process of decorative paper

Abstract

The invention relates to a paper roll feeding mechanism, a register embossing device and a printing production process of decorative paper, and relates to the field of printing mechanisms, the paper roll feeding mechanism comprises a rack, a frame body, a material separating frame, a material separating paper tube, a first paper tube, a second paper tube, a first driving assembly, a second driving assembly, a mounting assembly and a clutch assembly, the first paper tube is provided with an air expansion shaft in a penetrating mode, the end of the air expansion shaft is detachably and rotationally matched with the supporting seat through an installation assembly, and the first driving assembly is used for driving the air expansion shaft to rotate; the second paper tube is located under the first paper tube, the top of the peripheral face of a paper roll of the second paper tube abuts against the bottom of the peripheral face of the paper roll of the first paper tube, the second paper tube is detachably connected with the frame body through a clutch assembly, the second driving assembly is used for driving the second paper tube to rotate, and the material distributing paper tube is arranged on a material distributing frame. The material distributing paper tube is used for supplying paper to the second paper tube. The supporting stability of the first paper tube can be improved.

Description

Technical Field

[0001] The present application relates to the field of printing mechanisms, and in particular to a paper roll feeding mechanism, a plate embossing device, and a printing production process for decorative paper. Background Art

[0002] Decorative paper is an indispensable raw material in many building materials products, such as structural boards used in furniture and cabinets, as well as fireproof boards, floors, etc. In the product structure, decorative paper mainly plays a decorative role in providing patterns and a covering role in preventing the bottom glue from seeping through.

[0003] In the production process of decorative paper, it is often necessary to use a printing device to print the decorative paper. Embossed printing is a type of printing technology. In the production and processing of embossed printing of decorative paper, it is necessary to use synchronous plate-registered embossed printing technology for printing.

[0004] The existing registration printing device includes a registration printing machine main body and a paper roll feeding mechanism. The paper roll feeding mechanism includes a frame, a driving assembly and a paper tube. The frame is provided with two supporting seats. An inflatable shaft is fixed in the paper tube. The end of the inflatable shaft is rotatably matched with the supporting seat. The driving assembly is used to drive the paper tube to rotate, ensuring that the paper in the paper tube can be stably unrolled into the registration printing machine main body.

[0005] The paper roll on the paper tube is often heavy, and the load on the air shaft is heavy. Long-term use can easily cause the end of the air shaft to deform, resulting in reduced feeding accuracy. Summary of the invention

[0006] In order to improve the supporting stability of a paper roll, the present application provides a paper roll feeding mechanism, a plate embossing device and a printing production process for decorative paper.

[0007] The present application provides a paper roll feeding mechanism, which adopts the following technical solution: A paper roll feeding mechanism comprises a frame, a frame body, a material distribution rack, a material distribution paper drum, a first paper drum, a second paper drum, a first driving assembly, a second driving assembly, a mounting assembly and a clutch assembly, wherein the frame is provided with two supporting seats, the first paper drum is penetrated by an inflatable shaft, the end of the inflatable shaft is detachably rotatably matched with the supporting seat through the mounting assembly, and the first driving assembly is used to drive the inflatable shaft to rotate; the second paper drum is located directly below the first paper drum, the top of the paper roll outer circumference of the second paper drum abuts against the bottom of the paper roll outer circumference of the first paper drum, the second paper drum is detachably connected to the frame body through the clutch assembly, the second driving assembly is used to drive the second paper drum to rotate, the rotation direction of the second paper drum is opposite to that of the first paper drum, the material distribution rack is located on one side of the frame body, the material distribution paper drum is arranged on the material distribution rack, and the material distribution paper drum is used to supply paper to the second paper drum.

[0008] By adopting the above technical solution, the second paper tube is installed on the frame through the clutch assembly, the paper of the material distribution paper tube is connected to the second paper tube, and the first paper tube with the inflatable shaft is installed on the support seat through the installation assembly. The first paper tube has a paper roll, and the top of the outer circumference of the paper roll of the second paper tube is abutted against the bottom of the outer circumference of the paper roll of the first paper tube.

[0009] The paper of the first paper roll is fed into the main body of the plate embossing machine for printing. During this period, the first paper roll is unwound, and the second paper roll is synchronously reeled in the paper from the material distribution paper roll, that is, the thickness of the paper roll of the first paper roll is reduced, while the thickness of the paper roll of the second paper roll is increased, so that the paper roll of the second paper roll always abuts and supports the paper roll of the first paper roll, and cooperates with the support of the support seat to greatly improve the supporting effect of the first paper roll, thereby reducing the deformation of the air shaft due to excessive load.

[0010] And, after printing is completed, the first paper tube is removed, the paper between the material distribution paper tube and the second paper tube is cut off, the limit on the second paper tube is released by the clutch assembly, the second paper tube is moved up, the air shaft is inserted into the second paper tube, the second paper tube is installed on the support seat, and the second paper tube supplies paper to the main body of the plate embossing machine, that is, the second paper tube is converted into the first paper tube for use, and at the same time, the new second paper tube is installed on the frame through the clutch assembly, and the new second paper tube continues to reel in and support the paper roll of the first paper tube, thereby reducing the time and difficulty of replacing the paper tube.

[0011] Optionally, a first gear and a radial bearing are provided at the end of the inflatable shaft, a semi-arc groove is provided at the upper end of the support seat, and the mounting assembly includes a semi-arc bar and two bolts. The semi-arc bar is fixedly connected to the upper end of the support seat by bolts, and the inner arc surface of the semi-arc bar and the groove surface of the semi-arc groove jointly clamp the outer circumferential surface of the radial bearing; the first driving assembly includes a first motor, the first motor is installed on the support seat, and the output shaft of the first motor is fixed with a second gear, and the second gear is meshed with the first gear.

[0012] By adopting the above technical solution, the inner arc surface of the semi-arc strip and the groove surface of the semi-arc groove jointly clamp the outer peripheral surface of the radial bearing to achieve the rotational connection between the air shaft and the support seat.

[0013] Optionally, it also includes a lifting assembly, the clutch assembly includes two circular first pressure plates and two first hydraulic cylinders, the frame is fixed with two coaxially arranged sliding sleeves, the end face of the first pressure plate is coaxially fixed with a transmission shaft, the transmission shaft slides through the sliding sleeve, and the transmission shaft is rotatably connected to the sliding sleeve, the piston rod of the first hydraulic cylinder is coaxially rotatably connected to the end of the transmission shaft; the inner edge of the port of the second paper tube is provided with a first conical surface, the first pressure plate has a second conical surface adapted to the first conical surface; the transmission shaft is fixed with a third gear, the second driving assembly includes a second motor mounted on the frame, and the output shaft of the second motor is fixed with a fourth gear meshing with the third gear; the lifting assembly is used to lift the second paper tube.

[0014] By adopting the above technical solution, the first hydraulic cylinder and the transmission shaft are arranged to cooperate to drive the two first pressure plates to clamp the second paper tube at the same time, so that the torque of the second driving assembly can be transmitted to the second paper tube through the transmission shaft and the first pressure plates.

[0015] The first conical surface and the second conical surface are matched to achieve a centering effect, thereby ensuring the rotational coaxiality of the second paper tube.

[0016] By arranging a lifting component, the second paper tube can be lifted to the position of the original first paper tube, so as to convert the second paper tube into the first paper tube for use, thus saving time and labor.

[0017] Optionally, the frame includes a first support arm, a second support arm and a fixed seat, the fixed seat and the first support arm are externally fixed, and the lower end of the second support arm is slidably connected to the fixed seat; the clutch assembly includes two circular first pressure plates and a second hydraulic cylinder, the end face of the first pressure plate is coaxially provided with a rotating shaft, the two rotating shafts are rotatably connected to the first support arm and the second support arm respectively, the first support arm and the second support arm are respectively abutted against plane bearings provided on the end faces of the two first pressure plates, the cylinder body of the second hydraulic cylinder is fixed to the fixed seat, and the piston rod of the second hydraulic cylinder is fixedly connected to the second support arm; the inner edge of the port of the second paper tube is provided with a first conical surface, and the first pressure plate has a second conical surface adapted to the first conical surface; one of the rotating shafts is fixed with a third gear, and the second driving assembly includes a second motor mounted on the first support arm, and the output shaft of the second motor is fixed with a fourth gear meshing with the third gear.

[0018] By adopting the above technical solution, the second hydraulic cylinder drives the second support arm to move, and the second support arm and the first support arm are respectively clamped by the plane bearing and the first pressure plate to achieve the installation of the second paper tube; and the torque of the second motor can be transmitted to the second paper tube through the rotating shaft and the first pressure plate.

[0019] The first conical surface and the second conical surface are matched to achieve a centering effect, thereby ensuring the rotational coaxiality of the second paper tube.

[0020] Optionally, it also includes an inflation component, which includes an inflation tube and an inflation pump. An air inlet hole is axially penetrated by the rotating shaft corresponding to the first support arm, and the air inlet hole is connected to the inner cavity of the second paper tube. The end of the inflation tube is detachably connected to the rotating shaft, and the end of the rotating shaft is provided with a switch valve for opening and closing the air inlet hole.

[0021] By adopting the above technical solution, after the second paper tube is installed, the inflation tube is installed to one end of the rotating shaft, the inflation pump is started, and the high-pressure gas is injected into the inner cavity of the second paper tube through the air inlet hole, and then the switch valve is closed and the inflation tube is removed. The pressure of the high-pressure gas is applied to the inner circumference of the second paper tube to greatly improve the bending rigidity of the second paper tube, thereby reducing the deformation of the second paper tube caused by excessive load.

[0022] Optionally, it also includes a sealing reinforcement component, which includes a circular second pressure plate and a rubber ring, the outer circumferential surface of the first pressure plate is provided with a rotation-stop notch, the rotating shaft is threadedly connected to the first pressure plate, the center of the second pressure plate is provided with a through hole for the rotating shaft to pass through, and a pressing sheet is fixed to the end of the rotating shaft, and the pressing sheet is attached to the end surface of the second pressure plate away from the first pressure plate; the cross-sectional shape of the rubber ring is an isosceles trapezoid, the outer circumferential surface of the rubber ring is attached to the inner circumferential surface of the second paper tube, the second conical surface of the first pressure plate is simultaneously attached to the first conical surface and one of the inclined surfaces of the rubber ring, and the second pressure plate has a third conical surface adapted to the other inclined surface of the rubber ring; the air inlet hole penetrates through the surface of the pressing sheet.

[0023] By adopting the above technical solution, when the first pressure plate abuts against the end of the second paper tube, an external tool is used to cooperate with the anti-rotation notch to limit the first pressure plate, and then the rotating shaft is rotated. Through the cooperation between the rotating shaft and the thread of the first pressure plate, the rotating shaft moves axially in the direction away from the middle of the second paper tube to drive the pressure plate and the second pressure plate to move axially. The third conical surface of the second pressure plate and the second conical surface of the first pressure plate are respectively pressed on the two inclined surfaces of the rubber ring to force the rubber ring to expand radially outward, so that the rubber ring is more closely attached to the inner circumference of the second paper tube, thereby greatly improving the sealing performance, reducing the leakage of high-pressure gas in the second paper tube, and increasing the air pressure of the second paper tube in disguised form, and finally performing the inflation operation.

[0024] Optionally, it also includes an internal reinforcement component, which includes a plurality of ribs, each rib is evenly arranged along the circumference of the second paper tube, the ribs are extended axially along the second paper tube, and the ribs have a first arc surface, a second arc surface and an abutting side surface; the inner circumference of the second paper tube is provided with an annular groove, the ribs are fixed with a limiting ring, the groove wall of the annular groove is fixed with a support rod, the limiting ring is sleeved on the support rod, and the inner diameter of the limiting ring is greater than the outer diameter of the support rod; the limiting ring is provided with a first magnetic block, the groove wall of the annular groove is provided with a second magnetic block and a third magnetic block, the limiting ring is fixed with a protrusion, and the limiting block is fixed in the annular groove; when the first arc surface is in contact with the inner circumference of the second paper tube, the first magnetic block and the second magnetic block are magnetically attracted to each other; when the abutting side surface is in contact with the inner circumference of the second paper tube, the first magnetic block and the third magnetic block are magnetically attracted to each other, the protrusion abuts against the limiting block, and the limiting block prevents the ribs from continuing to flip.

[0025] By adopting the above technical solution, by setting ribs, and the inner diameter of the limiting ring is larger than the outer diameter of the support rod, the rotational freedom and translational freedom of the limiting ring are larger, and it is easier to change the position state of the rib relative to the second paper tube, and the first magnetic block is used to cooperate with the second magnetic block and the third magnetic block respectively to realize the limiting of the two state changes of the rib; when the abutting side is in contact with the inner circumference of the second paper tube, the protruding height of the rib is larger, and the rib can greatly improve the bending rigidity of the second paper tube, thereby reducing the deformation caused by excessive load on the second paper tube.

[0026] When the first arc surface fits the inner circumference of the second paper tube, the protruding height of the ribs is small, the inflatable shaft can pass through the second paper tube more easily, and the convex key of the inflatable shaft can pass through the ribs more stably and abut against the inner circumference of the second paper tube to achieve highly stable fixation.

[0027] Optionally, both ends of the rib are provided with cutouts, and the cutouts have guide surfaces; a guide ring is fixed to the end face of the pressing plate, and the outer edge of the guide ring is provided with an escape opening for avoiding the rib, and the outer edge of the guide ring is provided with a fourth conical surface adapted to the guide surface; when the guide ring moves axially away from the middle of the second paper tube, the fourth conical surface abuts against the guide surface and forces the rib to move radially in a direction away from the axis of the second paper tube.

[0028] By adopting the above technical solution, when the second paper tube is not installed, the ribs are moved so that the ribs are in a state of abutting the side surface and cooperating with the inner circumference of the second paper tube (the protrusion is stuck on the limit block), and then the first pressure plate is moved axially so that the first pressure plate is matched with the port of the second paper tube. In this process, the guide ring piece can pass over the end of the rib and be located at the cutout of the rib by avoiding the avoidance of the avoidance opening; then the rotating shaft is rotated to make the pressure plate and the guide ring piece rotate and move axially in the direction away from the middle of the second paper tube, and the pressure plate drives the second pressure plate to move axially to force the rubber ring to expand radially outward; and the fourth conical surface of the guide ring piece abuts against the guide surface, which will force the ribs to move radially in the direction away from the axis of the second paper tube, that is, the axial force of the guide ring piece is converted into the radial force of the ribs, forcing the ribs to be pressed and fixed to the second paper tube, further improving the bending rigidity of the second paper tube, thereby reducing the deformation caused by excessive load on the second paper tube.

[0029] Furthermore, the limiting block and the protrusion cooperate to limit the deflection of the rib, thereby reducing the occurrence of rib deflection and displacement caused by friction torque.

[0030] The present application provides a plate embossing device, which adopts the following technical solution: A plate-aligning embossing device comprises a plate-aligning embossing machine main body and a paper roll feeding mechanism.

[0031] The present application provides a printing production process for decorative paper, which adopts the following technical solution: A printing production process for decorative paper includes the following steps: installing the second paper tube on the frame through the clutch assembly, and connecting the paper of the material distribution paper tube to the second paper tube; installing the first paper tube with an air shaft on the support seat through the installation assembly, the first paper tube has a paper roll, and the top of the outer circumference of the paper roll of the second paper tube abuts against the bottom of the outer circumference of the paper roll of the first paper tube; feeding the paper of the first paper tube into the main body of the alignment embossing machine for printing; after printing, removing the first paper tube, cutting the paper between the material distribution paper tube and the second paper tube, passing the air shaft into the second paper tube, installing the second paper tube on the support seat, and the second paper tube supplies paper to the main body of the alignment embossing machine.

[0032] In summary, the present application includes at least one of the following beneficial technical effects: By setting the unwinding of the first paper drum and the synchronous rewinding of the second paper drum, the paper roll of the second paper drum always abuts against and supports the paper roll of the first paper drum, and cooperates with the support of the support seat to greatly improve the support effect of the first paper drum, thereby reducing the deformation of the air shaft due to excessive load; and after printing is completed, the second paper drum can pass through the air shaft and move to the support seat to unwind the main body of the registration printing machine, thereby reducing the time and difficulty of replacing the paper drum; Through the threaded cooperation between the rotating shaft and the first pressing plate, the rotating shaft moves axially in a direction away from the middle of the second paper tube to drive the pressing plate and the second pressing plate to move axially. The third conical surface of the second pressing plate and the second conical surface of the first pressing plate are respectively pressed on the two inclined surfaces of the rubber ring to force the rubber ring to expand radially outward, so that the rubber ring is more closely attached to the inner circumference of the second paper tube, thereby greatly improving the sealing performance, reducing the leakage of high-pressure gas in the second paper tube, and increasing the air pressure of the second paper tube in disguised form; By setting the ribs, two state changes of the ribs can be realized, and by utilizing the cooperation between the guide ring and the ribs, the axial force of the guide ring is converted into the radial force of the ribs, forcing the ribs to be pressed and fixed to the second paper tube. The ribs can greatly improve the bending rigidity of the second paper tube, thereby reducing the deformation of the second paper tube caused by excessive load. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The first embodiment is used to reflect the relative motion state of the first paper tube, the second paper tube and the material distribution paper tube.

[0034] Figure 2 It is a cross-sectional view of the paper roll feeding mechanism of Example 1.

[0035] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0036] Figure 4 It is a schematic diagram of the installation components of Example 1.

[0037] Figure 5 It is a cross-sectional view of the second paper tube of Example 2.

[0038] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0039] Figure 7 It is a partial cross-sectional view of Example 3 for illustrating the sealing reinforcement component.

[0040] Figure 8 It is a front view of the first pressure plate of Example 3.

[0041] Fig. 9 It is a schematic diagram of Example 4 for illustrating the bonding state between the first curved surface of the rib and the inner circumferential surface of the second paper tube.

[0042] Fig.10 It is a schematic diagram of Example 4 for illustrating the bonding state between the abutting side surface of the rib and the inner circumferential surface of the second paper tube.

[0043] Fig.11 It is a partial cross-sectional view of the connection structure between the rib and the second paper tube of Example 4.

[0044] Fig.12 It is a partial cross-sectional view of Example 4 for illustrating the sealing reinforcement component.

[0045] Fig.13 It is a schematic diagram of Example 4 for demonstrating the coordination relationship between the guide ring piece and the rib.

[0046] Description of reference numerals: 1, clutch assembly; 2, mounting assembly; 8, rib; 10, first paper tube; 101, frame; 102, air shaft; 103, support seat; 11, first pressure plate; 111, second conical surface; 112, anti-rotation notch; 12, transmission shaft; 13, first hydraulic cylinder; 14, plane bearing; 15, rotating shaft; 151, air inlet; 16, guide ring; 161, fourth conical surface; 162, avoidance; 163, connecting rod; 20, second paper tube; 201, frame; 2011, first conical surface; 202, sliding sleeve; 203, first support arm; 204, second support arm; 205, fixed seat; 206, second hydraulic cylinder; 207, rotating hole; 21. semi-arc strip; 22. bolt; 23. semi-arc groove; 24. radial bearing; 25. annular groove; 26. limit block; 27. second magnetic block; 28. third magnetic block; 29. ​​support rod; 30. paper distributing tube; 31. first motor; 32. second gear; 33. first gear; 50. lifting assembly; 51. second motor; 52. fourth gear; 53. third gear; 61. inflation tube; 62. switch valve; 71. second pressure plate; 711. third conical surface; 72. pressure sheet; 73. rubber ring; 81. first arc surface; 82. second arc surface; 83. abutting side surface; 84. inclined rod; 85. limit ring; 86. protrusion; 87. first magnetic block; 88. cutout; 89. guide surface. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1-13 This application is described in further detail.

[0048] Example 1, Example 1 discloses a plate embossing device, such as Figure 1 , Figure 2 , Figure 3 As shown, the plate embossing device includes a plate printing machine body (not shown in the figure) and a paper roll feeding mechanism, and the paper roll feeding mechanism includes a frame 101, a frame 201, a material distribution frame, a material distribution paper tube 30, a first paper tube 10, a second paper tube 20, a first drive assembly, a second drive assembly, a mounting assembly 2 and a clutch assembly 1.

[0049] The second paper tube 20 is detachably connected to the frame 201 through the clutch assembly 1. Specifically, the clutch assembly 1 includes two circular first pressure plates 11 and two first hydraulic cylinders 13. The frame 201 is fixed with two coaxially arranged sleeves 202. The end surface of the first pressure plate 11 is coaxially fixed with a transmission shaft 12. The transmission shaft 12 slides through the sleeve 202, and the transmission shaft 12 is rotatably connected to the sleeve 202.

[0050] The cylinder body of the first hydraulic cylinder 13 is fixed to the frame 201, and the piston rod of the first hydraulic cylinder 13 is coaxially rotatably connected to the end of the transmission shaft 12. Therefore, the two first hydraulic cylinders 13 are started synchronously to drive the two first pressure plates 11 to move toward or away from each other.

[0051] The inner edge of the port of the second paper tube 20 is provided with a first conical surface 2011, and the first pressing plate 11 has a second conical surface 111 adapted to the first conical surface 2011. When the two first pressing plates 11 are close to each other, the two first pressing plates 11 clamp the second paper tube 20 at the same time through the cooperation of the first conical surface 2011 and the second conical surface 111. At this time, the torque of the first pressing plate 11 can be transmitted to the second paper tube 20; when the two first pressing plates 11 are away from each other, the installation of the second paper tube 20 is released, so that the second paper tube 20 can be disassembled and replaced with a new one.

[0052] The transmission shaft 12 is fixed with a third gear 53, and the second driving assembly includes a second motor 51 installed on the frame 201. The output shaft of the second motor 51 is fixed with a fourth gear 52 meshed with the third gear 53, that is, by starting the second motor 51, the second paper tube 20 can be driven to rotate to achieve the winding of the paper roll.

[0053] The material distribution rack is located on one side of the frame 201 (not shown in the figure), and the material distribution paper drum 30 is arranged on the material distribution rack. The material distribution paper drum 30 is used to supply paper to the second paper drum 20, that is, when the second paper drum 20 rotates, the paper on the material distribution paper drum 30 is gradually rolled onto the second paper drum 20 ( Figure 1 The directions of the arrows in the figure are the rotation directions of the first paper roll 10, the second paper roll 20 and the moving direction of the paper respectively).

[0054] like Figure 2 , Figure 4As shown, the frame 101 is fixed with two symmetrically arranged supporting seats 103, the first paper tube 10 is penetrated by an inflatable shaft 102, and the end of the inflatable shaft 102 is detachably rotatably matched with the supporting seat 103 through the mounting assembly 2. Specifically, the end of the inflatable shaft 102 is provided with a first gear 33 and a radial bearing 24, and the upper end of the supporting seat 103 is provided with a semi-arc groove 23. The mounting assembly 2 includes a semi-arc bar 21 and two bolts 22. The semi-arc bar 21 is fixedly connected to the upper end of the supporting seat 103 by the bolts 22. The inner arc surface of the semi-arc bar 21 and the groove surface of the semi-arc groove 23 jointly clamp the outer circumferential surface of the radial bearing 24 to realize the rotational cooperation between the inflatable shaft 102 and the supporting seat 103.

[0055] The first driving assembly is used to drive the air shaft 102 to rotate, so as to drive the first paper tube 10 to rotate, so as to realize the paper supply of the first paper tube 10 to the main body of the printing machine, and the rotation direction of the first paper tube 10 is opposite to the rotation direction of the second paper tube 20. Specifically, the first driving assembly includes a first motor 31, and the first motor 31 is installed on the supporting seat 103. The output shaft of the first motor 31 is fixed with a second gear 32, and the second gear 32 is meshed with the first gear 33.

[0056] like Figure 1 , Figure 2 As shown, the first paper roll 10 is located directly above the second paper roll 20 , and the top of the outer circumference of the paper roll of the second paper roll 20 abuts against the bottom of the outer circumference of the paper roll of the first paper roll 10 .

[0057] This embodiment also discloses a printing production process of decorative paper using the above-mentioned registration printing device, comprising the following steps: The second paper tube 20 is moved to the frame 201 , the first hydraulic cylinder 13 is started, the two first pressing plates 11 approach each other, and through the cooperation of the first conical surface 2011 and the second conical surface 111 , the two first pressing plates 11 simultaneously clamp the second paper tube 20 , and then the paper of the dividing paper tube 30 is connected to the second paper tube 20 .

[0058] The first paper tube 10 with the inflatable shaft 102 is installed on the support seat 103 through the installation assembly 2. The first paper tube 10 has a paper roll. The top of the outer circumference of the paper roll of the second paper tube 20 abuts against the bottom of the outer circumference of the paper roll of the first paper tube 10.

[0059] The first drive assembly and the second drive assembly are started simultaneously to feed the paper of the first paper roll 10 into the main body of the plate embossing machine for printing. During this period, the first paper roll 10 is unwound, and the second paper roll 20 is synchronously reeled in the paper from the feed paper roll 30, that is, the thickness of the paper roll of the first paper roll 10 is reduced, while the thickness of the paper roll of the second paper roll 20 is increased, so that the paper roll of the second paper roll 20 always abuts against and supports the paper roll of the first paper roll 10, and cooperates with the support of the support seat 103 to greatly improve the supporting effect of the first paper roll 10, thereby reducing the deformation of the inflatable shaft 102 due to excessive load.

[0060] After printing is completed, the first paper tube 10 is removed, the paper between the material-dividing paper tube 30 and the second paper tube 20 is cut off, the second hydraulic cylinder 206 drives the first pressure plate 11 away from the second paper tube 20, the second paper tube 20 is moved upward, the inflatable shaft 102 is inserted into the second paper tube 20, the second paper tube 20 is installed on the support seat 103, the second paper tube 20 supplies paper to the main body of the plate embossing machine, that is, the second paper tube 20 is converted into the first paper tube 10 for use, and at the same time, the new second paper tube 20 is installed on the frame 201 through the clutch assembly 1, the paper of the material-dividing paper tube 30 is connected to the new second paper tube 20, and the new second paper tube 20 continues to reel and support the paper roll of the first paper tube 10, thereby reducing the time and difficulty of replacing the paper tube.

[0061] In this embodiment, in order to facilitate the upward movement of the second paper tube 20, the paper roll feeding mechanism further includes a lifting assembly 50, which is a scissor-type lifting platform. The scissor-type lifting platform is located directly below the second paper tube 20. The scissor-type lifting platform is used to mechanically lift the second paper tube 20, which is more labor-saving. In other embodiments, the lifting assembly 50 can be an electric hoist, and the second paper tube 20 is lifted by hoisting.

[0062] Embodiment 2, embodiment 2 is different from embodiment 1 in that, Figure 5 , Figure 6 As shown, the frame 201 includes a first support arm 203, a second support arm 204 and a fixed seat 205. The first support arm 203 and the second support arm 204 are both vertically arranged, the fixed seat 205 and the first support arm 203 are externally fixed, and the lower end of the second support arm 204 is slidably connected to the fixed seat 205, and the sliding direction of the second support arm 204 is close to or away from the first support arm 203.

[0063] The clutch assembly 1 includes two circular first pressure plates 11 and a second hydraulic cylinder 206. The end surface of the first pressure plate 11 away from the second conical surface 111 is coaxially fixed with a rotating shaft 15. The upper ends of the first support arm 203 and the second support arm 204 are both provided with a rotating hole 207. The rotating shaft 15 passes through the rotating hole 207, that is, the two rotating shafts 15 are respectively rotatably connected with the first support arm 203 and the second support arm 204. One of the rotating shafts 15 is fixed with a third gear 53. The second driving assembly includes a second motor 51 installed on the first support arm 203. The output shaft of the second motor 51 is fixed with a fourth gear 52 meshed with the third gear 53, that is, the second motor 51 can drive the rotating shaft 15 to rotate.

[0064] A plane bearing 14 is fixed to the end surface of the first pressing plate 11 away from the second conical surface 111 . The plane bearing 14 is coaxially arranged with the first pressing plate 11 .

[0065] The cylinder body of the second hydraulic cylinder 206 is fixed to the fixed seat 205, and the piston rod of the second hydraulic cylinder 206 is fixedly connected to the second support arm 204, that is, when the second hydraulic cylinder 206 is started, it will drive the second support arm 204 to slide toward the first support arm 203, so that the first support arm 203 and the second support arm 204 respectively abut against the plane bearings 14 on the end faces of the two first pressure plates 11, so as to force the second conical surface 111 of the first pressure plate 11 to cooperate with the first conical surface 2011 of the second paper tube 20 to jointly clamp the second paper tube 20, so that the torque of the rotating shaft 15 can be transmitted to the second paper tube 20 through the first pressure plate 11, so as to realize the winding of the second paper tube 20.

[0066] The paper roll feeding mechanism also includes an inflation component, which includes an inflation tube 61 and an inflation pump (not shown in the figure). An air inlet hole 151 is axially penetrated by the rotating shaft 15 corresponding to the first support arm 203. The air inlet hole 151 also penetrates the first pressing plate 11, so that the air inlet hole 151 is connected to the inner cavity of the second paper tube 20.

[0067] The end of the inflation tube 61 is detachably connected to the rotating shaft 15 via a quick connector (not shown in the figure), and a switch valve 62 for opening and closing the air inlet hole 151 is provided at the end of the rotating shaft 15.

[0068] After the second paper tube 20 is installed, the inflation tube 61 is installed to one end of the rotating shaft 15, the inflation pump is started, and the high-pressure gas is injected into the inner cavity of the second paper tube 20 through the air inlet 151, and then the switch valve 62 is closed and the inflation tube 61 is removed.

[0069] Since the pressure of the high-pressure gas is applied to the inner circumference of the second paper tube 20 , the bending rigidity of the second paper tube 20 will be greatly improved, thereby reducing the deformation of the second paper tube 20 caused by excessive load.

[0070] Embodiment 3, embodiment 3 is different from embodiment 2 in that, Figure 7 , Figure 8 As shown, the rotating shaft 15 is threadedly connected to the first pressure plate 11, and a rotation-stop notch 112 is provided on the outer peripheral surface of the first pressure plate 11. The paper roll feeding mechanism also includes a sealing reinforcement component, which includes a circular second pressure plate 71 and a rubber ring 73. A through hole (not marked in the figure) is provided at the center of the second pressure plate 71 for the rotating shaft 15 to pass through, that is, the rotating shaft 15 can rotate relative to the second pressure plate 71, and a pressing plate 72 is fixed to the end of the rotating shaft 15, and the pressing plate 72 is attached to the end surface of the second pressure plate 71 away from the first pressure plate 11.

[0071] The cross-sectional shape of the rubber ring 73 is an isosceles trapezoid. The outer circumference of the rubber ring 73 fits the inner circumference of the second paper tube 20. The second conical surface 111 of the first pressing plate 11 fits the first conical surface 2011 and one of the inclined surfaces of the rubber ring 73 at the same time. The second pressing plate 71 has a third conical surface 711 adapted to the other inclined surface of the rubber ring 73.

[0072] The air inlet hole 151 corresponding to the rotating shaft 15 of the first supporting arm 203 penetrates to the surface of the pressing plate 72 so as to facilitate the injection of high-pressure gas into the inner cavity of the second paper tube 20 .

[0073] When the first pressing plate 11 abuts against the end of the second paper tube 20, it is engaged with the anti-rotation notch 112 through an external tool (in other embodiments, other auxiliary tools can be used to fix the first pressing plate 11 to prevent it from rotating) to limit the first pressing plate 11, that is, the first pressing plate 11 cannot rotate, and then the rotating shaft 15 is rotated. Through the threaded engagement of the rotating shaft 15 and the first pressing plate 11, the rotating shaft 15 moves axially in a direction away from the middle of the second paper tube 20 to drive the pressing piece 72 and the second pressing plate 71 to move axially. The third conical surface 711 of the second pressing plate 71 and the second conical surface 111 of the first pressing plate 11 are respectively pressed on the two inclined surfaces of the rubber ring 73 to force the rubber ring 73 to expand radially outward, so that the rubber ring 73 is more closely attached to the inner circumference of the second paper tube 20, thereby greatly improving the sealing performance, reducing the leakage of high-pressure gas in the second paper tube 20, and indirectly increasing the upper limit of the air pressure of the second paper tube 20.

[0074] Finally, the inflation operation is performed. At this time, the pressure of the high-pressure gas is also applied to the pressing sheet 72 and the second pressing plate 71, so that the second pressing plate 71 further squeezes the rubber ring 73 to further improve the sealing effect.

[0075] Embodiment 4, embodiment 4 is different from embodiment 3 in that, Fig. 9 , Fig.10 , Fig.11As shown, it also includes an internal reinforcement component, which includes a plurality of ribs 8, each rib 8 is evenly arranged along the circumference of the second paper tube 20, and the ribs 8 are axially extended along the second paper tube 20. The ribs 8 have a first arc surface 81, a second arc surface 82 and abutting side surfaces 83, wherein the first arc surface 81 and the second arc surface 82 are respectively two wide sides of the ribs 8, and the abutting side surfaces 83 are narrow sides of the ribs 8.

[0076] The specific connection form between the rib 8 and the second paper tube 20 is that the inner circumference of the second paper tube 20 is provided with an annular groove 25, which can be opened in the middle or end of the second paper tube 20. In this embodiment, the annular groove 25 is opened in the middle of the second paper tube 20. The rib 8 is fixed with a limit ring 85 through an inclined rod 84, and a support rod 29 is fixed to the groove wall of the annular groove 25. The support rod 29 is extended along the axial direction of the second paper tube 20. The limit ring 85 is sleeved on the support rod 29, and the inner diameter of the limit ring 85 is larger than the outer diameter of the support rod 29, that is, the rotational freedom and translational freedom of the limit ring 85 are larger, and it is easier to change the position state of the rib 8 relative to the second paper tube 20.

[0077] The limiting ring 85 is fixed with a first magnetic block 87 , the groove wall of the annular groove 25 is fixed with a second magnetic block 27 and a third magnetic block 28 , the limiting ring 85 is fixed with a protrusion 86 , and the limiting block 26 is fixed in the annular groove 25 .

[0078] When the first arc surface 81 is attached to the inner circumference of the second paper tube 20 (see Fig. 9 ), the first magnetic block 87 and the second magnetic block 27 are magnetically attracted; when the contact side 83 is attached to the inner circumference of the second paper tube 20 (see Fig.10 ), the first magnetic block 87 and the third magnetic block 28 are magnetically attracted to each other, and the protrusion 86 abuts against the limit block 26, and the limit block 26 prevents the rib 8 from continuing to flip.

[0079] It should be noted that the first paper tube 10 is also provided with ribs 8 , and the connection method between the ribs 8 and the first paper tube 10 is the same as that of the second paper tube 20 .

[0080] like Fig.12 , Fig.13 As shown ( Fig.13 The arrow direction in the figure is the rotation direction of the guide ring piece 16), and both ends of the rib 8 are provided with a V-shaped cutout 88, and the cutout 88 has a guide surface 89. The end surface of the pressing plate 72 is fixed with the guide ring piece 16 through a connecting rod 163, and the outer edge of the guide ring piece 16 is provided with an avoidance opening 162 for avoiding the rib 8, and the outer edge of the guide ring piece 16 is provided with a fourth tapered surface 161 adapted to the guide surface 89.

[0081] When the second paper tube 20 is not installed, the rib 8 is moved so that the rib 8 is in a state of abutting the side surface 83 and cooperating with the inner circumference of the second paper tube 20 (at this time, the protrusion 86 is stuck on the limit block 26), and then the first pressure plate 11 is moved axially so that the first pressure plate 11 cooperates with the end of the second paper tube 20 to clamp the second paper tube 20. In this process, the guide ring piece 16 can pass over the end of the rib 8 and be located at the cutout 88 of the rib 8 by avoiding the avoidance opening 162.

[0082] The rotating shaft 15 is rotated and the rotating shaft 15 moves axially through threaded engagement, so as to drive the pressing plate 72 and the guide ring plate 16 to rotate and move axially in a direction away from the middle of the second paper tube 20. When the pressing plate 72 drives the second pressing plate 71 to move axially, the rubber ring 73 will be forced to expand radially outward. At the same time, the fourth conical surface 161 of the guide ring plate 16 abuts against the guide surface 89, which will force the rib 8 to move radially in a direction away from the axis of the second paper tube 20. That is, the axial force of the guide ring plate 16 is converted into the radial force of the rib 8, forcing the rib 8 to be pressed and fixed to the second paper tube 20, further improving the bending rigidity of the second paper tube 20, thereby reducing the deformation caused by excessive load on the second paper tube 20.

[0083] Furthermore, the cooperation between the limit block 26 and the protrusion 86 can limit the deflection of the rib 8 , thereby reducing the occurrence of deflection and displacement of the rib 8 due to the friction torque of the guide ring piece 16 .

[0084] After removing the second paper tube 20, when it is necessary to move the second paper tube 20 upward, that is, when the second paper tube 20 is converted into the first paper tube 10 for use, the rib 8 is moved again so that the first arc surface 81 of the rib 8 fits the inner circumference of the second paper tube 20. At this time, the protruding height of the rib 8 is small, and the inflatable shaft 102 can pass through the second paper tube 20 more easily, and the convex key of the inflatable shaft 102 abuts against the second arc surface 82 of the rib 8, that is, the convex key of the inflatable shaft 102 can pass through the rib 8 more stably and abut against the inner circumference of the second paper tube 20 to achieve highly stable fixation.

[0085] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A paper roll feeding mechanism, characterized in that: The invention comprises a frame (101), a frame body (201), a material distribution frame, a material distribution paper tube (30), a first paper tube (10), a second paper tube (20), a first driving assembly, a second driving assembly, a mounting assembly (2) and a clutch assembly (1), wherein the frame (101) is provided with two supporting seats (103), the first paper tube (10) is provided with an inflatable shaft (102), the end of the inflatable shaft (102) is detachably rotatably matched with the supporting seat (103) through the mounting assembly (2), and the first driving assembly is used to drive the inflatable shaft (102) to rotate; the second paper tube (20) is located at Directly below the first paper drum (10), the top of the outer circumference of the paper roll of the second paper drum (20) abuts against the bottom of the outer circumference of the paper roll of the first paper drum (10); the second paper drum (20) is detachably connected to the frame (201) via a clutch assembly (1); the second driving assembly is used to drive the second paper drum (20) to rotate; the rotation direction of the second paper drum (20) is opposite to that of the first paper drum (10); the material distribution rack is located on one side of the frame (201); the material distribution paper drum (30) is arranged on the material distribution rack; the material distribution paper drum (30) is used to supply paper to the second paper drum (20).

2. The paper roll feeding mechanism according to claim 1, characterized in that: The end of the inflatable shaft (102) is provided with a first gear (33) and a radial bearing (24); the upper end of the support seat (103) is provided with a semi-arc groove (23); the mounting assembly (2) comprises a semi-arc bar (21) and two bolts (22); the semi-arc bar (21) is fixedly connected to the upper end of the support seat (103) by the bolts (22); the inner arc surface of the semi-arc bar (21) and the groove surface of the semi-arc groove (23) jointly clamp the outer peripheral surface of the radial bearing (24); the first driving assembly comprises a first motor (31); the first motor (31) is mounted on the support seat (103); the output shaft of the first motor (31) is fixed with a second gear (32); the second gear (32) is meshed with the first gear (33).

3. The paper roll feeding mechanism according to claim 1, characterized in that: It also includes a lifting assembly (50), the clutch assembly (1) includes two circular first pressure plates (11) and two first hydraulic cylinders (13), the frame (201) is fixed with two coaxially arranged sliding sleeves (202), the end surface of the first pressure plate (11) is coaxially fixed with a transmission shaft (12), the transmission shaft (12) slides through the sliding sleeve (202), and the transmission shaft (12) is rotatably connected to the sliding sleeve (202), and the piston rod of the first hydraulic cylinder (13) is coaxially rotatably connected to the end of the transmission shaft (12); The inner edge of the port of the second paper tube (20) is provided with a first conical surface (2011), and the first pressing plate (11) has a second conical surface (111) adapted to the first conical surface (2011); the transmission shaft (12) is fixed with a third gear (53), the second driving assembly comprises a second motor (51) mounted on the frame (201), and the output shaft of the second motor (51) is fixed with a fourth gear (52) meshed with the third gear (53); the lifting assembly (50) is used to lift the second paper tube (20).

4. The paper roll feeding mechanism according to claim 1, characterized in that: The frame (201) comprises a first support arm (203), a second support arm (204) and a fixed seat (205); the fixed seat (205) and the first support arm (203) are externally fixed, and the lower end of the second support arm (204) is slidably connected to the fixed seat (205); the clutch assembly (1) comprises two circular first pressure plates (11) and a second hydraulic cylinder (206); the end surface of the first pressure plate (11) is coaxially provided with a rotating shaft (15); the two rotating shafts (15) are rotatably connected to the first support arm (203) and the second support arm (204), respectively; the first support arm (203) and the second support arm (204) are respectively abutted against the ends of the two first pressure plates (11). The second hydraulic cylinder (206) is mounted on a plane bearing (14) provided on the surface, the cylinder body of the second hydraulic cylinder (206) is fixed to the fixing seat (205), and the piston rod of the second hydraulic cylinder (206) is fixedly connected to the second supporting arm (204); the inner edge of the port of the second paper tube (20) is provided with a first conical surface (2011), and the first pressing plate (11) has a second conical surface (111) adapted to the first conical surface (2011); one of the rotating shafts (15) is fixed with a third gear (53), and the second driving assembly includes a second motor (51) mounted on the first supporting arm (203), and the output shaft of the second motor (51) is fixed with a fourth gear (52) meshed with the third gear (53).

5. The paper roll feeding mechanism according to claim 4, characterized in that: The invention also comprises an inflation component, which comprises an inflation tube (61) and an inflation pump. An air inlet hole (151) is axially penetrated by the rotating shaft (15) corresponding to the first support arm (203), and the air inlet hole (151) is communicated with the inner cavity of the second paper tube (20). The end of the inflation tube (61) is detachably connected to the rotating shaft (15), and the end of the rotating shaft (15) is provided with a switch valve (62) for opening and closing the air inlet hole (151).

6. The paper roll feeding mechanism according to claim 5, characterized in that: The invention also includes a sealing reinforcement component, wherein the sealing reinforcement component includes a circular second pressing plate (71) and a rubber ring (73); a rotation-stopping notch (112) is provided on the outer peripheral surface of the first pressing plate (11); the rotating shaft (15) is threadedly connected to the first pressing plate (11); a through hole is provided at the center of the second pressing plate (71) for the rotating shaft (15) to pass through; a pressing sheet (72) is fixed at the end of the rotating shaft (15); the pressing sheet (72) is attached to the second pressing plate (71) away from the first pressing plate ( 11); the cross-sectional shape of the rubber ring (73) is an isosceles trapezoid; the outer circumferential surface of the rubber ring (73) is fitted to the inner circumferential surface of the second paper tube (20); the second conical surface (111) of the first pressing plate (11) is fitted to the first conical surface (2011) and one of the inclined surfaces of the rubber ring (73); the second pressing plate (71) has a third conical surface (711) adapted to the other inclined surface of the rubber ring (73); the air inlet (151) penetrates to the surface of the pressing sheet (72).

7. The paper roll feeding mechanism according to claim 6, characterized in that: The invention also comprises an internal reinforcement component, wherein the internal reinforcement component comprises a plurality of ribs (8), each rib (8) being evenly arranged along the circumference of the second paper tube (20), the ribs (8) being axially extending along the second paper tube (20), the ribs (8) having a first arc surface (81), a second arc surface (82) and an abutting side surface (83); an annular groove (25) is provided on the inner circumference of the second paper tube (20), a limiting ring (85) is fixed on the ribs (8), a support rod (29) is fixed on the groove wall of the annular groove (25), the limiting ring (85) is sleeved on the support rod (29), and the inner diameter of the limiting ring (85) is greater than the outer diameter of the support rod (29); the limiting ring (85) is provided A first magnetic block (87) is provided, a second magnetic block (27) and a third magnetic block (28) are provided on the groove wall of the annular groove (25), a protrusion (86) is fixed on the limiting ring (85), and a limiting block (26) is fixed in the annular groove (25); when the first arc surface (81) is in contact with the inner circumference of the second paper tube (20), the first magnetic block (87) and the second magnetic block (27) are magnetically attracted to each other; when the abutting side surface (83) is in contact with the inner circumference of the second paper tube (20), the first magnetic block (87) and the third magnetic block (28) are magnetically attracted to each other, the protrusion (86) is in contact with the limiting block (26), and the limiting block (26) prevents the rib (8) from continuing to flip.

8. The paper roll feeding mechanism according to claim 7, characterized in that: Both ends of the rib (8) are provided with cutouts (88), and the cutouts (88) have guide surfaces (89); a guide ring piece (16) is fixed to the end surface of the pressing plate (72), and the outer edge of the guide ring piece (16) is provided with an escape opening (162) for evading the rib (8), and the outer edge of the guide ring piece (16) is provided with a fourth conical surface (161) adapted to the guide surface (89); when the guide ring piece (16) moves axially away from the middle of the second paper tube (20), the fourth conical surface (161) abuts against the guide surface (89) and forces the rib (8) to move radially in a direction away from the axial center of the second paper tube (20).

9. A plate embossing device, characterized in that: It comprises a plate registration embossing machine main body and the paper roll feeding mechanism as claimed in claim 1.

10. A printing production process for decorative paper using the plate-aligning embossing device according to claim 9, characterized in that: The following steps are involved: The second paper tube (20) is installed on the frame (201) through the clutch assembly (1), and the paper of the material distribution paper tube (30) is connected to the second paper tube (20); the first paper tube (10) with the air shaft (102) is installed on the support seat (103) through the installation assembly (2), the first paper tube (10) has a paper roll, and the top of the outer circumference of the paper roll of the second paper tube (20) abuts against the bottom of the outer circumference of the paper roll of the first paper tube (10); the paper of the first paper tube (10) is fed into the main body of the plate alignment embossing machine for printing; after the printing is completed, the first paper tube (10) is removed, the paper between the material distribution paper tube (30) and the second paper tube (20) is cut off, the air shaft (102) is inserted into the second paper tube (20), and the second paper tube (20) is installed on the support seat (103), and the second paper tube (20) supplies paper to the main body of the plate alignment embossing machine.

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