Self-adaptive adjusting compression roller for graining machine

Abstract

The invention discloses a self-adaptive adjusting compression roller for an embossing machine, and belongs to the technical field of embossing equipment. Comprising a roller frame, a lifting assembly is installed on the roller frame, two rotating assemblies are installed at the output end of the lifting assembly, and the two ends of a main roller are inserted into the corresponding rotating assemblies; the rotating assembly comprises a supporting shaft rotationally connected with the output end of the lifting assembly, the grinding roller is in transmission connection with the supporting shaft through a transmission assembly, the supporting shaft is slidably connected with a limiting pipe, the limiting pipe is rotationally connected with a supporting pipe, the supporting pipe is slidably connected with the output end of the lifting assembly, and the supporting shaft is connected with the output end of a first motor for driving. And a driving lever fixedly mounted on the supporting pipe is inserted into the track groove of the fixed plate to move. Through cooperative feedback of the hydraulic cylinder driving lifting assembly and the sensor, double self-adaptive adjustment of the roller distance and the impression force is achieved, the lifting amount of the main roller can be dynamically adjusted according to the thickness of a product, and the problem that the impression is too deep or too shallow due to uneven materials is solved.

Description

Technical Field

[0001] The invention relates to the technical field of embossing equipment, and more specifically to a self-adapting adjusting pressing roller for an embossing machine. Background Art

[0002] As the core equipment for surface treatment of packaging products, the processing quality of embossing machines directly affects the commercial value of high-end products such as cosmetic boxes, gift boxes, and pharmaceutical packaging. The modern packaging industry presents two major development trends: on the one hand, consumption upgrades have prompted packaging to develop towards personalization and high-quality products, such as cosmetic boxes requiring micro-relief effects and gift packaging pursuing deep three-dimensional embossing; on the other hand, flexible production needs force equipment to adapt to the range of material thickness, which poses a severe challenge to traditional embossing machines.

[0003] The flexibility of the existing embossing machine's roller is not ideal. When processing composite thickness materials or changing materials of different thicknesses or adjusting the embossing gap, the mechanical pressure adjustment system cannot adjust the distance autonomously or respond to material thickness fluctuations in real time. The roller gap needs to be adjusted manually, which increases the difficulty of roller adjustment and easily causes indentation depth deviation and embossing misalignment. In view of this, we propose an adaptively adjustable roller for embossing machines. Summary of the invention

[0004] The object of the present invention is to provide a self-adapting pressure roller for an embossing machine, so as to solve the technical problem of poor adjustability of the pressure roller in the prior art.

[0005] The embodiment of the present invention provides an adaptively adjustable pressing roller for an embossing machine, comprising a roller frame, a lifting assembly is installed on the roller frame, two sets of rotating assemblies are installed at the output end of the lifting assembly, and both ends of the main roller are plugged into the corresponding rotating assemblies; The rotating assembly includes a support shaft rotatably connected to the output end of the lifting assembly, a roller rotatably mounted on the roller frame is connected to the support shaft through a transmission assembly, a limit tube is slidably connected to the support shaft, a support tube is rotatably connected to the limit tube, the support tube is slidably connected to the output end of the lifting assembly, and the support shaft is driven by connecting to the output end of the first motor; A fixed plate is fixedly mounted on the roller frame, and a lever fixedly mounted on the support tube is inserted in a track groove of the fixed plate for movement; The output end of the lifting component drives the rotating component to rise and fall, which can adjust the working distance between the main roller and the grinding roller. The transmission component is driven by the telescopic shaft, so that the main roller and the grinding roller can maintain synchronous transmission when the distance between them changes.

[0006] As a further description of the above technical solution, the lifting assembly includes a hydraulic cylinder mounted on a roller frame, the output end of the hydraulic cylinder is fixedly mounted on the lifting frame, a slider slidably connected to the roller frame is mounted at the bottom of the lifting frame, and a plurality of support rods are fixedly mounted on the slider; The support tube is slidably connected to the corresponding support rod, and the support shaft is rotatably connected to the slider.

[0007] As a further description of the above technical solution, the track groove includes a first guiding groove, a reversing groove, and a second guiding groove that are sequentially connected. The first guiding groove and the second guiding groove are not collinear, and the shifting rod is inserted and moves in the first guiding groove, the reversing groove, or the second guiding groove.

[0008] As a further description of the above technical solution, support blocks are fixedly installed at both ends of the main roller. The support blocks are inserted and matched with the insertion slots provided at the ends of the support shaft, so that both ends of the main roller are inserted and limited on the support shaft.

[0009] As a further description of the above technical solution, the transmission assembly includes two sets of first bevel gears, which are respectively installed at the ends of the support shaft and the grinding roller; The telescopic shaft includes a sleeve and a shaft rod that are slidably connected to each other. The sleeve is rotatably connected to the roller frame, the shaft rod is rotatably connected to the slider, and second bevel gears are fixedly installed on both the sleeve and the shaft rod. The second bevel gears are engaged and driven with the first bevel gears.

[0010] As a further description of the above technical solution, it further includes a roll changing assembly. The roll changing assembly includes two sets of sleeves sleeved on the grinding roller and two sets of rotating frames fixedly installed on the sleeves. The sleeves are rotatably connected to the roller frame, and the sleeves are driven by being connected to the output end of the driving assembly; The support blocks are inserted and matched with two sets of fourth limiting grooves provided on the rotating frames, and the stop blocks fixedly installed in the fourth limiting grooves are inserted on the support blocks for axially limiting the support blocks.

[0011] As a further description of the above technical solution, a limiting rod is slidably connected to the sleeve for inserting into the support block to fix the main roller. A first electromagnet is fixedly installed at one end of the limiting rod, a second electromagnet is fixedly installed on the rotating frame, and a first elastic member for pushing the first electromagnet is installed on the limiting rod.

[0012] As a further description of the above technical solution, a displacement sensor for distance measurement is fixedly installed on the slider, and the slider is connected to the lifting rod through a pressure sensor.

[0013] As a further description of the above technical solution, a fixed disk is fixedly installed on the support shaft, a detection hole is provided on the fixed disk, and a grating sensor is fixedly installed on the slider.

[0014] As a further description of the above technical solution, a rotation stopping hole is provided on the grinding roller, a positioning rod is slidably connected to the roller frame, a third electromagnet is fixedly installed on the positioning rod, a fourth electromagnet is fixedly installed on the roller frame, and a second elastic member for pushing the third electromagnet is installed on the positioning rod.

[0015] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: 1. Through the collaborative feedback of the hydraulic cylinder driving the lifting component with the displacement sensor and the pressure sensor, the present invention realizes the dual adaptive adjustment of the roller spacing and the imprinting force, can dynamically adjust the lifting amount of the main roller according to the product thickness, and automatically compensates when the pressure is detected to exceed the limit, avoiding the problem of too deep or too shallow indentation caused by uneven materials.

[0016] 2. The present invention adopts a transmission component with a bevel gear set and a telescopic shaft linked together, maintaining the rotational speed synchronization of the main roller and the grinding roller while adjusting the roller spacing, reducing the risk of imprint misalignment and improving the imprint quality.

[0017] 3. Through the cooperation of the 180° symmetric rotating frame and the electromagnetic locking mechanism, the present invention realizes the on-line rapid replacement of the main roller, greatly improving the roller replacement efficiency. Moreover, the main roller is inserted on the support shaft and is limited and fixed by automatically controlling the limit tube during the lifting process of the support shaft, effectively reducing the difficulty of roller replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 2 It is a cross-sectional view of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 3 It is a schematic diagram of the main roller connection structure of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 4 It is a schematic diagram of a partial structure of the rotating component of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 5 It is a schematic diagram of the position of the insertion slot of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 6 It is a schematic diagram of the position of the lever of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 7 It is a schematic diagram of the insertion of the support block of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 8 It is a schematic diagram of the main roller structure of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 9 It is a schematic diagram of the position of the overall transmission component of an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention; Figure 10 It is an adaptive adjustment pressure roller for a embossing machine disclosed in a preferred embodiment of the present inventionFigure 9 Enlarged view at location A Figure 11 Schematic diagram of the connection structure of the roll-changing assembly of the self-adaptive adjusting pressure roller for a embossing machine disclosed in a preferred embodiment of the present invention Figure 12 For a self-adaptive adjusting pressure roller for an embossing machine disclosed in a preferred embodiment of the present invention Figure 11 Enlarged view at location B

[0019] Description of reference numerals in the figure: 1, roll stand; 2, lifting assembly; 21, hydraulic cylinder; 22, lifting plate; 23, lifting rod; 24, pressure sensor; 25, slider; 26, support rod; 3, rotating assembly; 31, support shaft; 32, limiting tube; 33, first limiting groove; 34, limiting block; 35, insertion slot; 36, support tube; 37, lever; 5, first motor; 11, fixing plate; 12, first guiding groove; 13, reversing groove; 14, second guiding groove; 4, main roller; 41, support block; 42, second limiting groove; 43, third limiting groove; 44, positioning hole; 6, grinding roller; 7, transmission assembly; 71, first bevel gear; 72, bushing; 73, shaft rod; 74, second bevel gear; 8, roll-changing assembly; 81, sleeve; 82, rotating frame; 83, fourth limiting groove; 84, stop block; 85, limiting rod; 86, first elastic member; 87, first electromagnet; 88, second electromagnet; 9, driving assembly; 91, second motor; 92, first gear; 93, second gear; 10, displacement sensor; 15, fixing disk; 16, grating sensor; 61, rotation-preventing hole; 17, positioning rod; 18, second elastic member; 19, third electromagnet; 110, fourth electromagnet. Detailed implementation manners

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Referring to Figures 1 to 12 , this embodiment discloses a self-adaptive adjusting pressure roller for an embossing machine, including a roll stand 1, on which a lifting assembly 2 is installed. The lifting assembly 2 includes a hydraulic cylinder 21 fixedly installed on the roll stand 1. The output end of the hydraulic cylinder 21 is fixedly installed with a lifting plate 22. Both ends of the lifting plate 22 are fixedly installed with lifting rods 23 slidably connected to the roll stand 1. The bottom of the lifting rod 23 is fixedly installed with a pressure sensor 24. The pressure end of the pressure sensor 24 is fixedly installed with a slider 25. The slider 25 is slidably connected to the roll stand 1, and a plurality of support rods 26 are fixedly installed on the slider 25.

[0022] Referring to Figures 2 to 7 , a rotating assembly 3 is installed on each slider 25. The rotating assembly 3 includes a support shaft 31 rotatably connected to the slider 25 through a bearing. A limiting tube 32 is slidably connected to the support shaft 31. A first limiting groove 33 is formed on the support shaft 31. A limiting block 34 is fixedly installed in the limiting tube 32. The limiting tube 32 is slidably guided with the support shaft 31 through the sliding fit of the limiting block 34 and the first limiting groove 33. A plugging groove 35 is formed at the end of the support shaft 31. A support tube 36 is rotatably connected to the outer side of the limiting tube 32. The support tube 36 is slidably connected to the corresponding support rod 26. When the limiting tube 32 rotates, the support rod 26 can limit the support tube 36, so as to prevent the support tube 36 from rotating along with the limiting tube 32. A dial rod 37 is fixedly installed on the support tube 36. One support shaft 31 is fixedly connected to the output end of a first motor 5 fixedly installed on the slider 25.

[0023] Referring to Figure 1 , Figure 2 and Figure 6 , a fixing plate 11 is fixedly installed on the roller frame 1. A first guiding groove 12, a reversing groove 13 and a second guiding groove 14 which are sequentially communicated are formed on the fixing plate 11. The first guiding groove 12 and the second guiding groove 14 have a certain distance in the axial direction of the support shaft 31. The opening directions of the first guiding groove 12 and the second guiding groove 14 are parallel to the axis of the lifting rod 23. The reversing groove 13 is smoothly transitioned with the first guiding groove 12 and the second guiding groove 14. The dial rod 37 is inserted into the first guiding groove 12, the reversing groove 13 or the second guiding groove 14 and moves. When the dial rod 37 moves in the reversing groove 13, it will drive the support tube 36 and the limiting tube 32 to move along the axial direction of the support shaft 31, so as to control the opening or closing of the upper and lower ends of the plugging groove 35.

[0024] Referring to Figure 1 , Figure 3 , Figure 7 and Figure 8, the adaptive adjusting pressure roller further includes a main roller 4. Support blocks 41 are fixedly installed at both ends of the main roller 4. Through the insertion and cooperation of the support blocks 41 and the insertion slots 35, both ends of the main roller 4 are inserted and limited on the support shafts 31. Second limiting slots 42 are formed in the support blocks 41. After the support blocks 41 are inserted into the insertion slots 35 of the support shafts 31, the first limiting slots 33 and the second limiting slots 42 communicate. Third limiting slots 43 and positioning holes 44 are formed in the support blocks 41. When the lever 37 moves into the second guiding slot 14, the upper and lower ports of the insertion slot 35 are opened. At this time, the support blocks 41 can be inserted into the insertion slots 35, so as to realize the insertion connection between the main roller 4 and the support shafts 31. When the lever 37 moves from the second guiding slot 14 to the first guiding slot 12 through the reversing slot 13, it will drive the support tube 36 and the limiting tube 32 to move towards the main roller 4 side. The inner walls of the limiting tubes 32 are attached to the upper and lower ends of the inserted support blocks 41, so as to limit the main roller 4 and ensure the stability of the connection between the main roller 4 and the support shafts 31.

[0025] Refer to Figure 1 , Figure 9 and Figure 10 , a rolling roller 6 is rotatably connected to the roller frame 1. The rolling roller 6 is directly below the main roller 4. Products such as cardboard pass through the gap between the main roller 4 and the rolling roller 6. Under the pressure of the main roller 4, the patterns on the main roller 4 are embossed on the surface of the conveyed products. Power transmission between the main roller 4 and the rolling roller 6 is realized through a transmission assembly 7.

[0026] The transmission assembly 7 includes two groups of first bevel gears 71 and a telescopic shaft. The two groups of first bevel gears 71 are respectively installed at the ends of the support shafts 31 and the rolling roller 6. The telescopic shaft includes a sleeve 72 and a shaft rod 73 that are slidably connected. The sleeve 72 is rotatably connected to the roller frame 1, and the shaft rod 73 is rotatably connected to the slider 25. Second bevel gears 74 are fixedly installed on both the sleeve 72 and the shaft rod 73. The second bevel gears 74 are meshed and driven with the corresponding first bevel gears 71. When the support shaft 31 drives the first bevel gear 71 at its end to rotate, through the meshing transmission of the first bevel gear 71 and the second bevel gear 74, the telescopic shaft is driven to rotate, and then the rolling roller 6 is driven to rotate through the meshing transmission of the bevel gears again, so as to realize the synchronous rotation of the main roller 4 and the rolling roller 6, ensure that the conveying step distances of the main roller 4 and the rolling roller 6 are the same during product embossing and conveying, reduce the risk of embossing misalignment caused by asynchronous product transmission, improve the embossing quality, and the telescopic shaft can be telescopically adjusted. When transmission is required, the stability of transmission can be effectively ensured, and the problem of great difficulty in synchronous transmission after adjusting the roller spacing between the main roller 4 and the rolling roller 6 can be effectively solved.

[0027] Refer to Figure 1 , Figure 11 and Figure 12, the adaptive adjusting pressure roller further includes a roll changing assembly 8. The roll changing assembly 8 includes two sets of sleeves 81 sleeved on the grinding roll 6 and two sets of rotating frames 82 fixedly installed on the sleeves 81. The sleeves 81 are rotatably connected to the roll frame 1. The grinding roll 6 passes through the sleeves 81 and does not contact the sleeves 81. The two sets of rotating frames 82 are centrosymmetric about the axis of the sleeves 81, that is, one set of rotating frames 82 can coincide with the other set of rotating frames 82 after rotating 180 degrees around the axis of the sleeves 81. Two sets of fourth limiting grooves 83 are formed in the rotating frames 82. The width of the fourth limiting grooves 83 is equal to the width of the supporting blocks 41, so that the supporting blocks 41 are stably inserted and fitted in the fourth limiting grooves 83 for limiting, preventing the main roll 4 from rotating on the rotating frames 82. A stop block 84 is fixedly installed in the fourth limiting grooves 83. The stop block 84 is inserted and fitted with the third limiting grooves 43, so as to axially limit the main roll 4. A limiting rod 85 is slidably connected to the sleeves 81. After the supporting blocks 41 are inserted and limited with the fourth limiting grooves 83, at this time, the positioning holes 44 and the limiting rod 85 are coaxial, and the limiting rod 85 is inserted into the positioning holes 44, so as to fix the supporting blocks 41 on the rotating frames 82; a first elastic member 86 is sleeved on the limiting rod 85. One end of the first elastic member 86 is fixedly connected to the rotating frames 82, and the other end is fixedly connected to the limiting rod 85. One end of the limiting rod 85 is fixedly installed with a first electromagnet 87, and a second electromagnet 88 is fixedly installed on the rotating frames 82. The first elastic member 86 is used to push the first electromagnet 87 to move away from the rotating frames 82 until the maximum limit position. When the first electromagnet 87 and the second electromagnet 88 are energized with the same-direction current, they attract each other, thereby compressing the first elastic member 86. At this time, the limiting rod 85 is inserted into the fourth limiting grooves 83. When the first electromagnet 87 and the second electromagnet 88 are energized with the reverse-direction current, they repel each other. At this time, the first elastic member 86 rebounds, and the end of the limiting rod 85 moves from the fourth limiting grooves 83 into the rotating frames 82.

[0028] Refer to Figure 1 and Figure 11 , one sleeve 81 is connected to the output end of the driving assembly 9. The driving assembly 9 includes a second motor 91 fixedly installed on the roll frame 1 and a first gear 92 fixedly installed on the sleeve 81. The output end of the second motor 91 is fixedly installed with a second gear 93. The second gear 93 is meshed with the first gear 92 for transmission. By controlling the rotation of the sleeve 81 through the driving assembly 9, the positions of the two sets of rotating frames 82 are switched, so as to interchange the positions of the main rolls 4 on the two sleeves 81.

[0029] Refer to Figure 10, a displacement sensor 10 is fixedly installed on the slider 25 equipped with a transmission component 7. The displacement sensor 10 is used to measure the distance between the main roller 4 and the grinding roller 6. Measuring the roller distance through a sensor is an existing technology and will not be elaborated here. By measuring the roller distance with the displacement sensor 10, after inputting the product thickness and pre-pressing thickness on the operation console, the lifting component 2 can control the main roller 4 to lift independently, so as to adaptively adjust the working distance between the main roller 4 and the grinding roller 6.

[0030] A fixed disk 15 is fixedly installed on the support shaft 31. A detection hole is provided on the fixed disk 15. A grating sensor 16 is fixedly installed on the slider 25. The transmitter and receiver of the grating sensor 16 are distributed on both sides of the detection hole. When the fixed disk 15 rotates and the grating sensor 16 detects the detection hole of the fixed disk 15, the output end of the first motor 5 stops driving the support shaft 31 to rotate. At this time, the insertion slot 35 on the support shaft 31 is in a vertical state, facilitating the insertion of the support block 41 of the subsequent main roller 4 to be installed and the insertion slot 35.

[0031] Refer to Figure 10 As shown, a rotation prevention hole 61 is provided on the grinding roller 6. A positioning rod 17 is slidably connected to the roller frame 1. A second elastic member 18 is sleeved on the positioning rod 17. One end of the second elastic member 18 is fixedly connected to the roller frame 1, and the other end is fixedly connected to the positioning rod 17. A third electromagnet 19 is fixedly installed on the positioning rod 17, and a fourth electromagnet 110 is fixedly installed on the roller frame 1.

[0032] When the grating sensor 16 detects the detection hole of the fixed disk 15, the positioning rod 17 and the rotation prevention hole 61 are coaxial. After the third electromagnet 19 and the fourth electromagnet 110 are energized with the same-direction current, the third electromagnet 19 moves towards the fourth electromagnet 110, compressing the second elastic member 18, and the positioning rod 17 is inserted into the rotation prevention hole 61 for limiting, thereby fixing the grinding roller 6 and preventing the transmission component 7 and the grinding roller 6 from rotating during roll change. After the third electromagnet 19 and the fourth electromagnet 110 are energized with the reverse-direction current, the second elastic member 18 gradually expands, and the positioning rod 17 disengages from the rotation prevention hole 61, realizing the release of the limit on the grinding roller 6. It should be noted that when the third electromagnet 19 and the fourth electromagnet 110 are not working, the positioning rod 17 does not contact the grinding roller 6 under the elastic push of the second elastic member 18, avoiding interference when the grinding roller 6 rotates.

[0033] Working principle: By inputting the product thickness and pre-pressing thickness on the operation console, the output end of the hydraulic cylinder 21 drives the lifting plate 22, the lifting rod 23, the slider 25, the rotating component 3, the main roller 4 and the first motor 5 to lift, and adjusts the working distance between the main roller 4 and the grinding roller 6 according to the measurement value obtained by the displacement sensor 10. The telescopic shaft expands and contracts under the drive of the slider 25. It should be noted that the adjustable working range of the main roller 4 and the grinding roller 6 does not exceed the height of the first guide groove 12 to ensure the stable limit of the limit tube 32 on the support block 41.

[0034] The output end of the first motor 5 drives the support shaft 31 to rotate, and then drives the main roller 4 inserted and limited on the support shaft 31 and the support shaft 31 on the other side to rotate. Through the meshing transmission of the first bevel gear 71 and the second bevel gear 74 and the transmission of the shaft rod 73 and the shaft sleeve 72, the grinding roller 6 is driven to rotate synchronously with the main roller 4, and the product is sent between the grinding roller 6 and the main roller 4, and the product is embossed under the roll pressing action.

[0035] For composite paper products with different thicknesses, by inputting the set pressure range of the pressure sensor 24 on the operating table, when the pressure sensor 24 detects that the pressure between the main roller 4 and the support shaft 31 exceeds the set pressure range, the output end of the hydraulic cylinder 21 is further lifted or lowered to control the main roller 4 to rise or fall, and by changing the distance between the main roller 4 and the grinding roller 6, the adaptive adjustment of the embossing pressure is realized.

[0036] When it is necessary to change the pattern style and replace the main roller 4, the new main roller 4 is inserted into the fourth limit groove 83 of the lower rotating frame 82 through the support block 41, the stop block 84 is inserted into the third limit groove 43 for limitation, the first electromagnet 87 and the second electromagnet 88 on the lower side are energized with the same direction current to attract each other, the first elastic member 86 is compressed, and the limiting rod 85 is inserted into the positioning hole 44 of the support block 41 to fix the main roller 4.

[0037] The output end of the first motor 5 drives the rotating assembly 3 and the main roller 4 to be replaced to rotate until the receiver of the grating sensor 16 receives the signal of the transmitter, and the output end of the first motor 5 stops rotating. At this time, the insertion slot 35 is in a vertical state; the output end of the hydraulic cylinder 21 drives the lifting plate 22, the lifting rod 23, the slider 25, the rotating assembly 3, the main roller 4 and the first motor 5 to rise, and the dial rod 37 moves from the first guide groove 12 into the reversing groove 13. When the dial rod 37 moves in the reversing groove 13, it drives the support tube 36 and the limiting tube 32 to move away from the side of the main roller 4. When the dial rod 37 moves to the communication point of the reversing groove 13 and the second guide groove 14, the limiting tube 32 is disengaged from the limitation of the support block 41, and the support block 41 is still inserted in the insertion slot 35 and is carried by the support shaft 31 to keep the main roller 4 stable and not fall off. The support method refers to Figure 7 that the support block 41 is located below the fourth limit groove 83 of the upper rotating frame 82.

[0038] As the output end of the hydraulic cylinder 21 continues to retract, the lever 37 moves into the second guiding groove 14. At this time, the support block 41 is inserted into the fourth limiting groove 83 of the upper rotating frame 82, and the stop block 84 is inserted into the third limiting groove 43. The first electromagnet 87 and the second electromagnet 88 corresponding to the upper rotating frame 82 are energized with a forward current and attract each other, so that the limiting rod 85 is inserted into the positioning hole 44 of the main roller 4 to be replaced, and the main roller 4 to be replaced is fixed on the upper rotating frame 82. The output end of the hydraulic cylinder 21 extends until the lever 37 moves to the connection between the reversing groove 13 and the second guiding groove 14, ensuring that when the two groups of rotating frames 82 are transposed, they do not interfere and collide with the support shaft 31. It should be noted that the lifting height and displacement of the rotating assembly 3 can be detected by a displacement sensor 10 or other positioning sensors. This is prior art and will not be elaborated here.

[0039] The output end of the second motor 91 drives the second gear 93 to rotate. Through the meshing transmission of the first gear 92 and the second gear 93, the sleeve 81 and the rotating frame 82 are rotated 180 degrees, so that the positions of the new and old main rollers 4 on the two groups of rotating frames 82 are interchanged. The output end of the hydraulic cylinder 21 drives the lifting plate 22, the lifting rod 23, the slider 25 and the rotating assembly 3 to rise, so that the support shaft 31 is inserted into the support block 41 of the new main roller 4. After the support block 41 is completely inserted into the insertion groove 35, the first electromagnet 87 and the second electromagnet 88 are energized with a reverse current and repel each other, and the limiting rod 85 disengages from the positioning hole 44 of the support block 41. At this time, the support block 41 of the main roller 4 is supported by the support shaft 31.

[0040] The output end of the hydraulic cylinder 21 drives the lifting plate 22, the lifting rod 23, the slider 25, the rotating assembly 3, the new main roller 4 and the first motor 5 to descend. The lever 37 enters the first guiding groove 12 from the second guiding groove 14 through the reversing groove 13. During this process, the lever 37 drives the support tube 36 and the limiting tube 32 to move towards the main roller 4. The limiting tube 32 is inserted on the support block 41 for limiting, and the limiting block 34 is inserted into the second limiting groove 42 for limiting, keeping the main roller 4 stably limited on the support shaft 31. After the replacement of the main roller 4 is completed, the third electromagnet 19 and the fourth electromagnet 110 are energized with a reverse current and repel each other, so that the positioning rod 17 disengages from the roller 6, releasing the limitation on the roller 6.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. An adaptive adjustment pressure roller for a embossing machine, characterized in that: It includes a roller frame (1), on which a lifting component (2) is installed. At the output end of the lifting component (2), two rotating components (3) are installed. The two ends of the main roller (4) are inserted into the corresponding rotating components (3). The rotating component (3) includes a support shaft (31) rotatably connected to the output end of the lifting component (2). The rolling roller (6) rotatably installed on the roller frame (1) is in transmission connection with the support shaft (31) through a transmission component (7). A limiting tube (32) is slidably connected to the support shaft (31). A support tube (36) is rotatably connected to the limiting tube (32). The support tube (36) is slidably connected to the output end of the lifting component (2). The support shaft (31) is driven by being connected to the output end of the first motor (5). A fixing plate (11) is fixedly installed on the roller frame (1). The shifting rod (37) fixedly installed on the support tube (36) is inserted into and moves in the track groove of the fixing plate (11). The output end of the lifting component (2) drives the rotating component (3) to lift, which can adjust the working distance between the main roller (4) and the rolling roller (6). The transmission component (7) is driven by a telescopic shaft, so that when the distance between the main roller (4) and the rolling roller (6) changes, synchronous transmission can be maintained.

2. The self - adaptive adjusting pressure roller for a embossing machine according to claim 1, characterized in that: The lifting component (2) includes a hydraulic cylinder (21) installed on the roller frame (1). The output end of the hydraulic cylinder (21) is fixedly installed with a lifting frame. At the bottom of the lifting frame, a slider (25) slidably connected to the roller frame (1) is installed. A number of support rods (26) are fixedly installed on the slider (25). The support tube (36) is slidably connected to the corresponding support rod (26), and the support shaft (31) is rotatably connected to the slider (25).

3. The self - adaptive adjusting pressure roller for a embossing machine according to claim 1, characterized in that: The track groove includes a first guiding groove (12), a reversing groove (13), and a second guiding groove (14) that are sequentially connected. The first guiding groove (12) and the second guiding groove (14) are not collinear. The shifting rod (37) is inserted into and moves in the first guiding groove (12), the reversing groove (13), or the second guiding groove (14).

4. The self - adaptive adjusting pressure roller for a embossing machine according to claim 1, characterized in that: At both ends of the main roller (4), support blocks (41) are fixedly installed. The support blocks (41) are inserted and matched with the insertion slots (35) opened at the ends of the support shaft (31), so that both ends of the main roller (4) are inserted and limited on the support shaft (31).

5. The self - adaptive adjusting pressure roller for a embossing machine according to claim 2, wherein: The transmission component (7) includes two groups of first bevel gears (71), which are respectively installed at the ends of the support shaft (31) and the rolling roller (6). The telescopic shaft includes a sleeve (72) and a shaft rod (73) that slide relative to each other. The sleeve (72) is rotatably connected to the roller frame (1), and the shaft rod (73) is rotatably connected to the slider (25). Second bevel gears (74) are fixedly installed on both the sleeve (72) and the shaft rod (73). The second bevel gears (74) are in meshing transmission with the first bevel gears (71).

6. The self - adaptive adjusting pressure roller for a embossing machine according to claim 4, wherein: It also includes a roll changing component (8). The roll changing component (8) includes two groups of sleeves (81) sleeved on the rolling roller (6) and two groups of rotating frames (82) fixedly installed on the sleeves (81). The sleeves (81) are rotatably connected to the roller frame (1). The sleeves (81) are driven by being connected to the output end of a driving component (9). The support block (41) is inserted and matched with two groups of fourth limit grooves (83) formed in the rotating frame (82), and the stop block (84) fixedly installed in the fourth limit groove (83) is inserted into the support block (41) for axially limiting the support block (41).

7. The self - adaptive adjusting pressure roller for a embossing machine according to claim 6, characterized in that: A limit rod (85) is slidably connected to the sleeve (81) for inserting into the support block (41) to fix the main roller (4). A first electromagnet (87) is fixedly installed at one end of the limit rod (85), a second electromagnet (88) is fixedly installed on the rotating frame (82), and a first elastic member (86) for pushing the first electromagnet (87) is installed on the limit rod (85).

8. An adaptive adjustment pressure roller for a embossing machine according to claim 2, characterized in that: A displacement sensor (10) for distance measurement is fixedly installed on the slider (25), and the slider (25) is connected to the lifting frame through a pressure sensor (24).

9. An adaptive adjusting pressure roller for a embossing machine according to claim 2, wherein: A fixed disk (15) is fixedly installed on the support shaft (31), a detection hole is formed in the fixed disk (15), and a grating sensor (16) is fixedly installed on the slider (25).

10. An adaptive adjustment pressure roller for a embossing machine according to any one of claims 1-9, characterized in that: A rotation stopping hole (61) is formed in the grinding roller (6), a positioning rod (17) is slidably connected to the roller frame (1), a third electromagnet (19) is fixedly installed on the positioning rod (17), a fourth electromagnet (110) is fixedly installed on the roller frame (1), and a second elastic member (18) for pushing the third electromagnet (19) is installed on the positioning rod (17).

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