Ultrathin specialty paper slitting device and method

Abstract

The invention discloses an ultrathin specialty paper slitting device and method, and relates to the technical field of slitting machines. The ultrathin specialty paper slitting device comprises at least two cutting circular knives arranged side by side and further comprises an auxiliary roller located above the cutting circular knives, the auxiliary roller is formed by at least two sets of single roller shells, each set comprises two single roller shells, the ends of the two single roller shells are opposite, a hollowed-out ring is fixedly arranged between the two single roller shells, and the hollowed-out ring is located above the cutting circular knives. A cutting gap is formed between the hollow ring and the two single roller shells, receding grooves are formed in the ends, close to each other, of the two single roller shells at equal intervals, and axial blocks are arranged in the receding grooves and can axially slide in the receding grooves; according to the ultrathin specialty paper slitting device and method, through cooperative work of the inner side pressing wheel, the axial block and the outer side pressing wheel, forming of a cutting gap and a rolling gap is achieved, cutting operation is carried out in the cutting gap, rolling operation is carried out in the rolling gap through the inner side pressing wheel and the outer side pressing wheel, and the flatness of ultrathin specialty paper is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of slitting machine technology, specifically to a device and method for slitting ultra-thin specialty paper. Background Technology

[0002] Specialty paper is a type of paper made from different fibers using a papermaking machine, resulting in paper with special functions. There are many types of specialty paper, which is a general term for various special-purpose papers or art papers. Currently, to simplify the confusion caused by the large variety of varieties, people usually refer to embossed paper and other art papers as specialty paper. Specialty paper produced in the workshop is currently large in size and cannot be used directly. Therefore, it needs to be processed by a slitting machine after production. The slitting machine passes the specialty paper between the blade and the cutter head. During the unwinding and conveying process of the specialty paper, the blade squeezes the cutter head to cut the specialty paper into strips of several desired widths.

[0003] Existing slitting machines come in two structural forms: one without a cutting groove on the blade holder, and the other with a cutting groove on the blade holder adapted to the blade. The first type leads to rapid blade wear and a shorter lifespan for the slitting blade. The second type has a cutting groove, with the two sides of the groove supporting the cutting line of the paper. However, the cutting groove causes slight collapse and wrinkles at the cutting position due to the compressive stress from the blade. This change has a relatively small impact on ordinary paper in existing technology and is within an acceptable range. However, for ultra-thin specialty papers, this slight cutting collapse and wrinkles are more noticeable, and existing technology cannot solve this problem. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an ultra-thin specialty paper slitting device and method, which solves the problem that in existing technologies, even slight cutting collapses and wrinkles are quite noticeable for ultra-thin specialty papers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an ultra-thin special paper slitting device, comprising at least two parallel cutting circular blades, and further comprising: An auxiliary roller is located above the cutting circular blade. The rotation direction of the auxiliary roller and the cutting circular blade is opposite to the movement direction of the ultra-thin special paper. The auxiliary roller is formed by at least two sets of single roller shells. Each set has two single roller shells with their ends facing each other. A hollow ring is fixed between the two single roller shells. The diameter of the hollow ring is smaller than the diameter of the single roller shell. A cutting gap is formed between the hollow ring and the two single roller shells. The two single roller shells have equal-spaced clearance grooves at their relatively close ends. An axial block is provided in the clearance groove and can slide axially within the clearance groove. The displacement mechanism, located inside the single roller shell, is used to drive the axial block away from the cutting gap on the arc segment after the special paper is slit, so as to widen the cutting gap on the arc segment and turn the cutting gap into a roller pressing gap. The inner pressure roller is located inside the single roller shell and extends out at the roller pressing gap to be flush with the arc surface of the single roller shell to press the special paper. The auxiliary roller is provided with an outer pressure roller on the side near the roller pressing gap.

[0006] Furthermore, the single roller shell has an inner convex ring at one end near the hollowed-out ring, and the displacement mechanism includes: A force-bearing rod, one end of which is fixed to the side of the axial block away from the hollow ring, and the other end of which passes through the inner convex ring and is fitted with a spring. The base ring is located inside the single roller shell and does not rotate with the auxiliary roller. One end face of the base ring is close to the force rod, and the side near the cutting gap is a convex part, and the side near the roller pressing gap is a concave part. One end of the convex part and the concave part are connected by a connecting part one, and the other end is connected by a connecting part two. When the force rod rotates with the single roller shell, it can circulate on the convex part, the connecting part one, the concave part, and the connecting part two.

[0007] Furthermore, the auxiliary roller includes an inner support cylinder located inside the hollow ring, and an ejection mechanism is installed on the inner support cylinder.

[0008] Furthermore, the launching mechanism includes: A radial rod is used to support the inner pressure roller. The radial rod is a rod-type structure arranged radially along the auxiliary roller. A radial guide cylinder is provided on the area of ​​the inner support cylinder opposite to the radial rod. The radial rod passes through the radial guide cylinder. A spring is sleeved on a section of the radial rod near the inner pressure roller. A ball bearing is installed on the other end of the radial rod. The fixed cam is located in the central region of the single roller shell and does not rotate with the single roller shell. The fixed cam includes a small diameter part, a connecting part one, a large diameter part and a connecting part two arranged in sequence. The small diameter part is opposite to the cutting gap, and the connecting part one, the large diameter part and the connecting part two are opposite to the rolling gap.

[0009] Furthermore, a protrusion is provided on the side of the axial block near the center, and the ejection mechanism includes: The first link is rotatably mounted on the protrusion via a pin. The second link is rotatably mounted on the other end of the first link via a pin. The third link is connected between the radial link and the second link by a pin. The limiting seat is rotatably installed at the intersection of the third link and the second link. The inner support cylinder has a limiting track for restricting the limiting seat to move only axially. The inner support cylinder also has a clearance groove for avoiding the second link.

[0010] Furthermore, the hollowed-out area of ​​the hollowed-out ring can guide the radial rod, restricting the movement trajectory of the radial rod to the radial direction of the single roller shell.

[0011] Furthermore, it also includes a ventilation duct for blowing hot air into the cutting slit and the rolling slit. The hot air in the cutting slit is used to apply a pushing force to the specialty paper, and the hot air in the rolling slit is used to heat the inner pressure roller. The ventilation duct includes: The main air pipeline is located in the axial region of the auxiliary roller. One end of the main air pipeline is an open end and the other end is a sealed end. The open end is used to enter hot air, and the two ends of the main air pipeline are limited by brackets. The air circuit assembly includes a sleeve fitted onto the main air pipe and opposite to the inner support cylinder. A branch pipe communicating with its own inner cavity is fixed to the outer periphery of the sleeve. The other end of the branch pipe passes through the inner support cylinder and is fixed to the inner wall of the hollow ring. Side openings are provided on both sides of the branch pipe near the hollow ring. Air holes are provided on the main air pipe at the same tangential position as the branch pipe, and the air holes are opposite to the cutting points of the roller pressing gap and the cutting gap.

[0012] Furthermore, the sleeve is fixedly connected to the inner support cylinder via spokes, and when the air passage assembly rotates with the auxiliary roller, the hot air flow in the main air passage enters the corresponding branch pipe through the air hole.

[0013] Furthermore, both ends of the auxiliary roller are provided with rotating shafts, which are active rotating shafts to enable the auxiliary roller to feed the special paper.

[0014] On the other hand, the present invention also provides a method for slitting ultra-thin specialty paper, applicable to the aforementioned ultra-thin specialty paper slitting device, comprising the following steps: Step 1: The special paper passes between the cutting blade and the auxiliary roller, and is cut by the cutting blade in the cutting gap area. The hot airflow provides pushing force in the cutting gap. Step 2: After being slit, the specialty paper passes through the roller gap of the auxiliary roller and is pressed by the inner pressure roller and the outer pressure roller. Step 3: After being rolled, the strip of specialty paper is guided by the guide roller and then wound up by the winding roller.

[0015] The present invention has the following beneficial effects: (1) The ultra-thin special paper slitting device and method reduce burrs by increasing the relative speed between the blade and the paper (tangential speed superposition), which is especially suitable for fine slitting of ultra-thin special paper and reduces paper wrinkling: when cutting in reverse, the blade has a "flattening" effect on the paper, avoiding paper accumulation or wrinkles that may be caused by cutting in the forward direction.

[0016] (2) The ultra-thin special paper slitting device and method, by setting up a displacement mechanism and an ejection mechanism, and setting up an inner pressure roller, an axial block and an outer pressure roller to work together, realize the formation of cutting gap and rolling gap, perform cutting operation in the cutting gap, and perform rolling operation in the rolling gap through the inner pressure roller and the outer pressure roller, reshape the small collapses generated after cutting, and ensure the flatness of ultra-thin special paper.

[0017] (3) The ultra-thin special paper slitting device and method, by setting up a ventilation pipeline, allows airflow to enter the cutting gap and the rolling gap. The airflow in the cutting gap can generate a pushing force on the cutting part of the special paper, thereby reducing the micro-collapse generated during cutting.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram showing the process without the addition of ultra-thin specialty paper; Figure 3 This is a schematic diagram of the auxiliary roller of the present invention; Figure 4 This is an assembly diagram of the outer pressure roller of the present invention; Figure 5 This is a diagram showing the state of the axial block forming a cutting slit in the present invention; Figure 6 This is a diagram showing the state of the axial block forming the roll-pressed gap in the present invention. Figure 7 This is a diagram showing the fit between the inner pressure roller and the outer pressure roller of the present invention. Figure 8 This is a schematic diagram of the internal structure of a set of single roller shells in Embodiment 1 of the present invention; Figure 9 For the present invention Figure 8 Exploded view; Figure 10 This is an assembly drawing of the ejection mechanism in Embodiment 1 of the present invention; Figure 11 For the present invention Figure 10 Exploded view; Figure 12 This is an orthographic projection view of the fixed cam and base ring of the present invention; Figure 13 This is a schematic diagram of the structure of the fixed cam and base ring of the present invention installed on the main air pipeline; Figure 14 For the present invention Figure 13 A schematic diagram of the added gas path components; Figure 15This is a cross-sectional view of the gas path assembly of the present invention; Figure 16 This is a schematic diagram of the internal structure of a set of single roller shells in Embodiment 2 of the present invention; Figure 17 This is an assembly diagram of the gas path assembly, the hollow ring, and the inner support cylinder in Embodiment 2 of the present invention; Figure 18 For the present invention Figure 17 Enlarged view of area A; Figure 19 This is an assembly diagram of the air passage assembly and the inner support cylinder in Embodiment 2 of the present invention; Figure 20 This is a diagram showing the state where the ejection mechanism pulls back the inner pressure roller in Embodiment 2 of the present invention; Figure 21 This is a diagram showing the state of the inner pressure roller being pushed out by the ejection mechanism in Embodiment 2 of the present invention.

[0020] In the diagram, 1. Cutting circular blade; 2. Guide roller; 3. Outer pressure roller; 4. Main air pipe; 41. Air hole; 5. Auxiliary roller; 51. Single roller shell; 511. Inner convex ring; 52. Clearance groove; 53. Axial block; 531. Protrusion; 54. Hollow ring; 55. Inner support cylinder; 551. Radial guide cylinder; 552. Clearance groove; 553. Limiting track; 6. Displacement mechanism; 61. Base ring; 62. Protrusion; 63. Connecting part one; 64. Recess; 65. Connecting part two; 66. Force-bearing rod; 7. Spring 1; 68. Ball bearing 1; 69. Limiting shoulder; 7. Air circuit assembly; 71. Sleeve; 72. Branch pipe; 73. Side port; 74. Spoke 1; 8. Push-out mechanism; 81. Ball bearing 2; 82. Radial rod; 83. Spring 2; 84. Fixed cam; 841. Small diameter section; 842. Connecting part 1; 843. Large diameter section; 844. Connecting part 2; 85. Third connecting rod; 86. First connecting rod; 87. Second connecting rod; 88. Limiting seat; 9. Rotating shaft; 10. Inner pressure roller. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0023] The following is based on Figures 1-21 This invention describes the ultra-thin special paper slitting device and method provided in the embodiments of the present invention.

[0024] On the one hand, embodiments of the present invention provide an ultra-thin special paper slitting device.

[0025] Example 1, please refer to Figures 1-2 As shown, the ultra-thin specialty paper slitting device includes at least two parallel cutting circular blades 1, which are shown as four cutting circular blades 1 in the figure. The multiple cutting circular blades 1 should be coaxial to achieve synchronous rotation and cutting. The rotation direction of the cutting circular blades 1 is opposite to the movement direction of the ultra-thin specialty paper. An auxiliary roller 5 is also provided. The auxiliary roller 5 is located above the cutting circular blades 1 and is opposite to the movement direction of the ultra-thin specialty paper. The auxiliary roller 5 serves as a support component for the cutting circular blades 1 during cutting. Both ends of the auxiliary roller 5 are provided with rotating shafts 9, which are active rotating shafts.

[0026] exist Figure 7 From the perspective shown, it is easier to see that the special paper enters from the left between the auxiliary roller 5 and the cutting blade 1, wraps around the surface of the auxiliary roller 5 by 180 degrees, and then exits from the left side above the auxiliary roller 5. The cutting blade 1 rotates counterclockwise, and the auxiliary roller 5 rotates clockwise.

[0027] like Figures 3-8 As shown, the auxiliary roller 5 is composed of at least two sets of single roller shells 51 with their ends facing each other. Figure 3 The diagram shows four sets of single roller shells 51, with two single roller shells 51 in each set. A hollow ring 54 is fixed between these two single roller shells 51 by bolts. The diameter of the hollow ring 54 is smaller than the diameter of the single roller shell 51, thus forming a cutting gap between the hollow ring 54 and the two single roller shells 51. The cutting circular blade 1 can be inserted into the cutting gap during cutting. Setting the cutting gap can better avoid the collision between the auxiliary roller 5 and the cutting circular blade 1, and extend the life of the cutting circular blade 1.

[0028] To ensure that the sides of the special paper strip are flatter after the cutting blade 1 cuts the special paper, an inner pressure roller 10 and an outer pressure roller 3 are provided. The outer pressure roller 3 is located on the side of the auxiliary roller 5 near the arc segment after the special paper is slit. Figure 7(The right side of the middle section) The inner pressure roller 10 is located inside the single roller shell 51. After cutting, the inner pressure roller 10 can extend to a position flush with the arc surface of the single roller shell 51 (the specific extension method will be explained below), so that it can roll the strip of special paper to ensure the flatness of the special paper.

[0029] To increase the axial width of the inner pressure roller 10, thereby expanding the rolling range of the strip-shaped specialty paper (this is because the cutting slit needs to be set narrower; if it is set too wide, the cutting part of the specialty paper will lose the support of the end of the single roller shell 51 during cutting, causing its cutting position to collapse significantly into the cutting slit; therefore, the width of the cutting slit needs to be smaller during the cutting stage, and the cutting slit needs to be expanded during the extension stage of the inner pressure roller 10 to accommodate the larger axial width of the inner pressure roller 10), the following solution is provided: At the relatively close ends of the two single roller shells 51, clearance grooves 52 are provided at equal intervals (see reference). Figure 5 An axial block 53 is provided inside the clearance groove 52. The axial block 53 can slide axially within the clearance groove 52. When the axial block 53 approaches the opening of the clearance groove 52, it can make the end of the single roller shell 51 near the cutting gap form a flat arc surface, thereby supporting the position of the special paper to be cut. Figure 5 This state is shown. When the axial block 53 moves away from the opening side of the clearance groove 52, the width of the cutting slit increases, forming a roller pressing slit, thus providing extension space for the inner pressure roller 10. Figure 6 (For this state); refer to Figure 7 Specialty paper is fed from the left and cut at the lower end of the single roller shell 51. Axial block 53 forms a cutting gap on the left and lower end of the single roller shell 51, and axial block 53 forms a rolling gap on the right and upper end of the single roller shell 51.

[0030] Combination Figure 7 and Figure 8 As shown, in order to enable the axial block 53 to automatically form the above two states during the entire rotation of the auxiliary roller 5, a displacement mechanism 6 is also provided. The displacement mechanism 6 is located inside the single roller shell 51 and is used to drive the axial block 53 on the arc segment after the special paper is slit ( Figure 7 The right-hand arc segment is moved away from the cutting gap to widen the cutting gap in that arc segment, turning the cutting gap into a roll-pressed gap.

[0031] Combination Figure 8 and Figure 9As shown, in order to install the aforementioned displacement mechanism 6, an integral inner convex ring 511 is provided at one end of the single roller shell 51 near the hollow ring 54. The displacement mechanism 6 includes a force-bearing rod 66 and a base ring 61: one end of the force-bearing rod 66 is fixed to the side of the axial block 53 away from the hollow ring 54, and the other end of the force-bearing rod 66 passes through the inner convex ring 511 and is fitted with a spring 67. The base ring 61 is located inside the single roller shell 51, and the spatial position of the base ring 61 is fixed (the specific fixing method will be explained below). (Fang's explanation) The base ring 61 does not rotate with the auxiliary roller 5. The base ring 61 is close to one end face of the force rod 66, and the side close to the cutting gap is the protrusion 62, and the side close to the roller pressing gap is the concave part 64. One end of the protrusion 62 and the concave part 64 are connected by the first connecting part 63, and the other end is connected by the second connecting part 65. When the force rod 66 rotates with the single roller shell 51, it can circulate on the protrusion 62, the first connecting part 63, the concave part 64, and the second connecting part 65.

[0032] In this embodiment, the position of the protrusion 62 is opposite to the position of the cutting slit, and the position of the concave part 64 is opposite to the position of the rolling slit. Thus, when the force rod 66 passes through the protrusion 62, the protrusion 62 can push the force rod 66, causing the force rod 66 to push the axial block 53 to the area opposite to the single roller shell 51. Conversely, when the force rod 66 reaches the concave part 64, the spring 67 rebounds, which can pull the axial block 53, increasing the distance between the two opposite axial blocks 53, thereby turning the cutting slit into a rolling slit.

[0033] Furthermore, to prevent the cutting kerf from immediately becoming a roller-pressed kerf immediately after the cutting blade 1 finishes cutting at the bottom, this can be achieved by... Figure 7 The lower right part is also set to the width of the cutting gap to avoid instability caused by the axial block 53 pushing the special paper immediately after it is cut. Specifically, the protrusion 62 can be extended to the lower right side by 20 degrees to delay the switching.

[0034] Preferably, a ball bearing 68 is installed at the end of the force-bearing rod 66 near the base ring 61 to reduce wear between the force-bearing rod 66 and the base ring 61.

[0035] Furthermore, to prevent the force bar 66 from automatically compressing the spring 67 due to centrifugal force, a limiting shoulder 69 is provided on the force bar 66 to limit its excessive movement and prevent it from protruding from the end of the single roller shell 51, which would cause the cutting gap to be completely occupied.

[0036] Combination Figure 10 and Figure 11 As shown, in order to achieve the purpose of pushing out the inner pressure roller 10 within the roller gap, a pushing mechanism 8 is also provided. The auxiliary roller 5 includes an inner support cylinder 55, which is located inside the hollow ring 54 and is used to support the pushing mechanism 8.

[0037] Specifically, refer to Figures 9-11 As shown, the ejection mechanism 8 includes a radial rod 82, which serves as a support for the inner pressure roller 10. It is a rod-type structure arranged radially along the auxiliary roller 5. A radial guide cylinder 551 is provided on the inner support cylinder 55 in the area opposite to the radial rod 82. The radial rod 82 passes through the radial guide cylinder 551. A spring 83 is sleeved on a section of the radial rod 82 near the inner pressure roller 10. A ball bearing 81 is installed on the other end of the radial rod 82. When the end of the radial rod 82 near the center of the inner support cylinder 55 is pressed, it can drive the inner pressure roller 10 to extend, and conversely, it pulls the inner pressure roller 10 back.

[0038] Therefore, a fixed cam 84 is also provided here. The fixed cam 84 is located in the central region of the single roller shell 51, and its spatial position is also fixed. It does not rotate with the single roller shell 51. The fixed cam 84 includes a small diameter part 841, a first connecting part 842, a large diameter part 843, and a second connecting part 844 arranged sequentially. The small diameter part 841 is opposite to the cutting gap, and the first connecting part 842, the large diameter part 843, and the second connecting part 844 are opposite to the rolling gap. More specifically, the large diameter part 843 is opposite to the concave part 64, and the small diameter part 841 is opposite to the convex part 62, as shown below. Figure 12 .

[0039] In this embodiment, when the radial rod 82 rotates with the auxiliary roller 5, the radial rod 82 passes through the fixed cam 84. When it reaches the large diameter part 843, it is pushed out, and when it reaches the small diameter part 841, it is pulled back, thereby realizing the extension and retraction of the inner pressure roller 10.

[0040] Combination Figures 9-11 As shown, in order to achieve hot rolling of the special paper by the inner pressure roller 10, the embodiment of the present invention also provides a ventilation pipe. The ventilation pipe is used to blow hot air into the cutting gap and the rolling gap. The hot air in the cutting gap is used to apply a pushing force to the special paper. This pushing force can reduce the indentation of the cutting point of the ultra-thin special paper during cutting. The hot air in the rolling gap is used to heat the inner pressure roller 10, thereby improving the rolling flatness effect.

[0041] The aforementioned ventilation system includes a main air pipe 4 and an air path assembly 7. The main air pipe 4 is located in the axial region of the auxiliary roller 5. One end of the main air pipe 4 is an open end, and the other end is a sealed end. The open end is used to enter hot air. Both ends of the main air pipe 4 are limited by brackets to ensure that the main air pipe 4 is in a fixed state. (It should be noted that the aforementioned fixed cam 84 is fixed on the main air pipe 4 to maintain the stability of the fixed cam 84's position. The base ring 61 is also fixed on the main air pipe 4 to ensure the stability of the base ring 61's position. See reference...) Figure 13 As shown), Figure 11 , Figure 14 and Figure 15As shown, the air circuit assembly 7 includes a sleeve 71, which is sleeved on the main air pipe 4 and is opposite to the inner support cylinder 55. A branch pipe 72 connected to its own inner cavity is fixed on the outer periphery of the sleeve 71. The other end of the branch pipe 72 passes through the inner support cylinder 55 and is fixed on the inner wall of the hollow ring 54. The inner support cylinder 55 is integrated with the hollow ring 54 through the branch pipe 72, so as to achieve the purpose of synchronous rotation of the two. The branch pipe 72 has side openings 73 on both sides near the hollow ring 54. An air hole 41 is provided on the main air pipe 4 at the same tangential position as the branch pipe 72, and the air hole 41 is opposite to the cutting point in the roller pressing gap and the cutting gap (the cutting point refers to the area opposite to the cutting circular knife 1).

[0042] Preferably, the sleeve 71 is fixed to the inner support cylinder 55 via spokes 74, so that the sleeve 71 rotates together with the inner support cylinder 55. When the air passage assembly 7 rotates with the auxiliary roller 5, the hot air in the main air passage 4 enters the corresponding branch pipe 72 through the air hole 41.

[0043] Preferably, the adjustable range of hot air temperature is 35 degrees Celsius to 45 degrees Celsius.

[0044] In detail, hot air enters from the opening end of the main air pipe 4 and exits from the air hole 41 into the branch pipe 72 opposite to the roller pressing gap, and exits from the branch pipe 72. In addition to entering the roller pressing gap, part of the hot air flow also enters the cutting gap to support the cutting position of the special paper and ensure the cutting stability of the special paper.

[0045] When using (working), in Figure 1 and Figure 7 From the perspective shown, the specialty paper enters from the left between the auxiliary roller 5 and the cutting blade 1, wraps around the surface of the auxiliary roller 5 by 180 degrees, and then exits from the upper left side of the auxiliary roller 5. The cutting blade 1 rotates counterclockwise, and the auxiliary roller 5 rotates clockwise.

[0046] When the auxiliary roller 5 rotates, the ventilation pipe, the inner pressure roller 10, and the axial block 53 work together to form the cutting slit and the rolling slit, and to perform cutting operations in the cutting slit and rolling operations in the rolling slit via the inner pressure roller 10. Specifically, when the auxiliary roller 5 rotates, in Figure 7 The left side and directly below are shown as cutting slits. At this time, the displacement mechanism 6 is in the state of pushing the axial blocks 53. The two opposing axial blocks 53 are flush with the end of the single roller shell 51, which is used to ensure the integrity of the end of the single roller shell 51. Figure 5 The state shown provides support for the cutting portion of the specialty paper, reducing the possibility of collapse during cutting. As the auxiliary roller 5 rotates clockwise, the axial block 53 on the right side is pulled by the displacement mechanism 6, causing the axial block 53 to form... Figure 6The roller pressing gap is shown. At this time, the ejection mechanism 8 pushes the entire inner pressure roller 10 to be flush with the arc surface of the single roller shell 51. The inner pressure roller 10 cooperates with the outer pressure roller 3, so that the slight collapse deformation caused by the stress of the cutter at the cutting position is reshaped.

[0047] Example 2 differs from Example 1 in that the ejection mechanism 8 is different. The axial block 53 has a protrusion 531 on the side near the center. The third link 85 is connected between the radial rod 82 and the second link 87 by a pin. The limiting seat 88 is rotatably installed at the intersection of the third link 85 and the second link 87. The inner support cylinder 55 has a limiting track 553 for limiting the axial movement of the limiting seat 88. The inner support cylinder 55 also has a clearance groove 552 for avoiding the second link 87.

[0048] In this implementation plan, refer to Figure 20 When the two opposing axial blocks 53 move away from each other, the protrusion 531 can pull the lower end of the first connecting rod 86, causing its upper end to move in an arc shape. This, in turn, pushes the second connecting rod 87, which in turn pushes the third connecting rod 85. At this time, due to the limiting effect of the limiting seat 88 and the limiting track 553, the third connecting rod 85 can push out the radial rod 82 and the inner pressure roller 10, forming... Figure 21 The state.

[0049] Preferably, the hollowed-out area of ​​the hollowed-out ring 54 can guide the radial rod 82, restricting the movement trajectory of the radial rod 82 to the radial direction of the single roller shell 51.

[0050] On the other hand, the present invention also provides a method for slitting ultra-thin specialty paper, applicable to the aforementioned ultra-thin specialty paper slitting device, comprising the following steps: Step 1: The special paper passes between the cutting circular knife 1 and the auxiliary roller 5, and is cut by the cutting circular knife 1 in the cutting gap area. The cutting gap is provided with pushing force by the hot airflow. Step 2: After being slit, the special paper passes through the roller pressing gap of the auxiliary roller 5 and is pressed by the inner pressure roller 10 and the outer pressure roller 3. Step 3: After being rolled, the strip of specialty paper is guided by guide roller 2 and then wound up by winding roller.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A slitting device for ultra-thin specialty paper, comprising at least two parallel cutting circular blades (1), characterized in that, Also includes: The auxiliary roller (5) is located above the cutting circular knife (1). The rotation direction of the auxiliary roller (5) and the cutting circular knife (1) is opposite to the movement direction of the ultra-thin special paper. The auxiliary roller (5) is formed by at least two sets of single roller shells (51). Each set is provided with two single roller shells (51), and the ends of the two single roller shells (51) are opposite to each other. A hollow ring (54) is fixed between the two single roller shells (51). The diameter of the hollow ring (54) is smaller than the diameter of the single roller shell (51). A cutting gap is formed between the hollow ring (54) and the two single roller shells (51). The two single roller shells (51) are provided with equal spacing of clearance grooves (52) at their relatively close ends. An axial block (53) is provided in the clearance groove (52). The axial block (53) can slide axially in the clearance groove (52). The displacement mechanism (6) is located inside the single roller shell (51) and is used to drive the axial block (53) away from the cutting gap on the arc segment after the special paper is slit, so as to widen the cutting gap on the arc segment and make the cutting gap into a roller pressing gap. The inner pressure roller (10) is located inside the single roller shell (51). The inner pressure roller (10) extends out at the roller pressing gap to be flush with the arc surface of the single roller shell (51) to press the special paper. The auxiliary roller (5) is provided with an outer pressure roller (3) on the side near the roller pressing gap.

2. The ultra-thin special paper slitting device according to claim 1, characterized in that: The single roller shell (51) has an inner convex ring (511) at one end near the hollow ring (54), and the displacement mechanism (6) includes: Force rod (66), one end of which is fixed to the side of the axial block (53) away from the hollow ring (54), and the other end of the force rod (66) passes through the inner convex ring (511) and is fitted with a spring (67). The base ring (61) is located inside the single roller shell (51) and does not rotate with the auxiliary roller (5). The base ring (61) is close to one end face of the force rod, and the side close to the cutting gap is a protrusion (62), and the side close to the roller pressing gap is a concave part (64). One end of the protrusion (62) and the concave part (64) are connected by a first connecting part (63), and the other end is connected by a second connecting part (65). When the force rod (66) rotates with the single roller shell (51), it can circulate on the protrusion (62), the first connecting part (63), the concave part (64), and the second connecting part (65).

3. The ultra-thin special paper slitting device according to claim 1 or 2, characterized in that: The auxiliary roller (5) includes an inner support cylinder (55), which is located inside the hollow ring (54), and an ejection mechanism (8) is installed on the inner support cylinder (55).

4. The ultra-thin special paper slitting device according to claim 3, characterized in that, The launching mechanism (8) includes: A radial rod (82) is used to support the inner pressure roller (10). The radial rod (82) is a rod structure arranged radially along the auxiliary roller (5). A radial guide cylinder (551) is provided on the area opposite to the radial rod (82) on the inner support cylinder (55). The radial rod (82) passes through the radial guide cylinder (551). A spring (83) is sleeved on a section of the radial rod (82) near the inner pressure roller (10). A ball bearing (81) is installed on the other end of the radial rod (82). A fixed cam (84) is located in the axial region of the single roller shell (51) and does not rotate with the single roller shell (51). The fixed cam (84) includes a small diameter part (841), a connecting part one (842), a large diameter part (843), and a connecting part two (844) arranged in sequence. The small diameter part (841) is opposite to the cutting gap, and the connecting part one (842), the large diameter part (843), and the connecting part two (844) are opposite to the rolling gap.

5. The ultra-thin special paper slitting device according to claim 3, characterized in that, The axial block (53) has a protrusion (531) on the side near the center, and the ejection mechanism (8) includes: The first link (86) is rotatably mounted on the protrusion (531) via a pin. The second link (87) is rotatably mounted on the other end of the first link (86) via a pin. The third link (85) is connected between the radial link (82) and the second link (87) by a pin. The limiting seat (88) is rotatably installed at the intersection of the third link (85) and the second link (87). The inner support cylinder (55) has a limiting track (553) for limiting the limiting seat (88) to move only axially. The inner support cylinder (55) also has a clearance groove (552) for avoiding the second link (87).

6. The ultra-thin special paper slitting device according to claim 5, characterized in that, The hollowed-out area of ​​the hollowed-out ring (54) can guide the radial rod (82) and restrict the movement trajectory of the radial rod (82) to the radial direction of the single roller shell (51).

7. The ultra-thin special paper slitting device according to claim 1, characterized in that, It also includes a ventilation pipe for blowing hot air into the cutting slit and the rolling slit. The hot air in the cutting slit is used to apply a pushing force to the special paper, and the hot air in the rolling slit is used to heat the inner pressure roller (10). The ventilation pipe includes: Main air pipeline (4), the main air pipeline (4) is located in the axial region of the auxiliary roller (5), one end of the main air pipeline (4) is an open end and the other end is a sealed end. The open end is used to enter hot air, and the two ends of the main air pipeline (4) are limited by the bracket. The air circuit assembly (7) includes a sleeve (71), which is fitted on the main air pipe (4) and is opposite to the inner support cylinder (55). A branch pipe (72) communicating with its own inner cavity is fixed on the outer periphery of the sleeve (71). The other end of the branch pipe (72) passes through the inner support cylinder (55) and is fixed on the inner wall of the hollow ring (54). The branch pipe (72) has side openings (73) on both sides near the hollow ring (54). The main air pipe (4) has an air hole (41) at the same tangential position as the branch pipe (72), and the air hole (41) is opposite to the roller pressing gap.

8. The ultra-thin special paper slitting device according to claim 7, characterized in that: The sleeve (71) is fixed to the inner support cylinder (55) via spoke one (74). When the air passage assembly (7) rotates with the auxiliary roller (5), the hot air in the main air passage (4) enters the corresponding branch pipe (72) through the air hole (41).

9. The ultra-thin special paper slitting device according to claim 1, characterized in that: Both ends of the auxiliary roller (5) are provided with rotating shafts (9), which are active rotating shafts to enable the auxiliary roller (5) to transport special paper.

10. A method for slitting ultra-thin specialty paper, applicable to the ultra-thin specialty paper slitting apparatus according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: The special paper passes between the cutting round knife (1) and the auxiliary roller (5) and is cut by the cutting round knife (1) in the cutting gap area. The cutting gap is provided with pushing force by the hot airflow. Step 2: After being slit, the special paper passes through the roller pressing gap of the auxiliary roller (5) and is pressed by the inner pressure roller (10) and the outer pressure roller (3); Step 3: After being rolled, the strip of special paper is guided by the guide roller (2) and then wound up by the winding roller.

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