Swing arm assembly, winding assembly and winding machine

Abstract

The utility model relates to the technical field of roll-dividing machines, and discloses a swing arm assembly, a rolling assembly and a roll-dividing machine, and the swing arm assembly is characterized in that the first end of a connecting arm is connected to a rack, and a threaded adjusting hole and a through hole are formed in the second end; the connecting block is provided with a threaded connecting hole, and a movable gap is formed between the connecting block and the connecting arm; the first end of the supporting arm is rotationally connected with the rack, the supporting arm is connected with the connecting block, and the winding roller is installed at the second end of the supporting arm. A first threaded section of the connecting bolt penetrates through the through hole to be in threaded connection with the threaded connecting hole, and a first polished rod section of the connecting bolt is in sliding connection with the through hole; the adjusting bolt comprises a second polished rod section and a second threaded section, the second polished rod section penetrates through the threaded adjusting hole to abut against the connecting block, the second threaded section is in threaded connection with the threaded adjusting hole, the distance of the movable gap is adjusted through the connecting bolt and the adjusting bolt, and then the supporting arm is driven to rotate. The problem of quickly adjusting the distance between a winding roller and an unwinding roller is solved or improved.

Description

Technical Field

[0001] The present application relates to the technical field of slitting machines, specifically to a swing arm assembly, a winding assembly and a slitting machine. Background Art

[0002] The function of a slitting machine is to cut the wide-width material wound on a pay-off roll into narrow-width materials of the required width and wind them up. Taking the cutting into two narrow-width materials as an example, the winding is carried out by two winding rollers respectively. The two winding rollers are arranged vertically. The two narrow-width materials are pulled on the two winding rollers in a staggered manner. After cutting, the sides of the two narrow-width materials away from each other are prone to wrinkle when the pressure is small and cannot be flattened, seriously affecting the winding quality and efficiency of the slitting machine. At this time, it is necessary to adjust the distance between the winding roller and the pay-off roll to increase the pulling force on the narrow-width material and flatten the side of the narrow-width material.

[0003] In the related art, the distance between the winding roller and the pay-off roll is adjusted by a cylinder, and then the tensile force on the narrow-width material is adjusted to prevent wrinkles from occurring during the winding process. However, the accuracy is insufficient, and the cylinder needs to be controlled by an electrical mechanism. The control process of the electrical mechanism is very complex and requires adjusting multiple parameters, such as surface friction, center winding, surface pressure, etc. From the time when the worker inputs the parameters to the time when the machine adjusts its working state according to the parameters to adjust the distance between the winding roller and the pay-off roll, the machine cannot stop during this process. As a result, during the period from discovering the problem to solving the problem, a large part of the coil has been released and wound, seriously affecting the winding quality and subsequent use. Summary of the Utility Model

[0004] In view of this, the present application provides a swing arm assembly, a winding assembly and a slitting machine to solve or improve the problem of quickly adjusting the distance between the winding roller and the pay-off roll.

[0005] In a first aspect, the present application provides a swing arm assembly, including:

[0006] A connecting arm is provided with a first end and a second end. The first end is used for connecting to the frame, and the second end is provided with a threaded adjustment hole and a through hole;

[0007] A connecting block is provided with a threaded connection hole corresponding to the through hole. Along the axial direction of the through hole, there is an activity gap between the connecting block and the connecting arm;

[0008] A support arm has its first end for rotatably connecting to the frame. The body of the support arm is connected to the connecting block, and the second end of the support arm is used for installing a winding roller;

[0009] A connecting bolt includes a first threaded section and a first smooth rod section. The first threaded section passes through the through hole and is screwed into the threaded connection hole, and the first smooth rod section is slidably connected to the through hole;

[0010] Adjusting bolt, including a second smooth rod section and a second threaded section. The second smooth rod section passes through the threaded adjustment hole and abuts against the connecting block, and the second threaded section is screwed into the threaded adjustment hole. The distance of the movable gap is adjusted by the connecting bolt and the adjusting bolt, thereby driving the support arm to rotate.

[0011] Beneficial effects: The first end of the connecting arm is fixedly connected to the frame, and the second end is provided with a threaded adjustment hole and a through hole. The axes of the threaded adjustment hole and the through hole are parallel to the rotation plane of the support arm. The connecting bolt passes through the through hole, its first threaded section is connected to the threaded connection hole, and the first smooth rod section is slidably connected to the through hole. The first smooth rod section has a clearance fit with the through hole. The connecting bolt connects the connecting block to the connecting arm, enabling the connecting block to be slidably connected to the connecting arm along the axial direction of the connecting bolt. The second smooth rod section of the adjusting bolt passes through the threaded adjustment hole and abuts against the connecting block, and the second threaded section is connected to the threaded adjustment hole. Rotating the connecting bolt in the first direction can screw the first threaded section into the threaded connection hole. At the same time, rotating the adjusting bolt in the second direction can screw the second threaded section out of the threaded adjustment hole, causing the second smooth rod section to move away from the connecting block, which can reduce the distance of the movable gap. The connecting block drives the second end of the support arm to move away from the unwinding roller, thereby quickly fine-tuning the distance between the winding roller connected to the second end of the support arm and the unwinding roller, improving the adjustment accuracy.

[0012] By manually adjusting the connecting bolt and the adjusting bolt, the operator can intuitively perceive the adjustment effect and shorten the adjustment time. Compared with debugging the electrical mechanism and controlling the distance between the support arm and the unwinding roller by a cylinder, the efficiency is higher.

[0013] In an alternative embodiment, the side surface of the connecting arm is slidably abutted against the side surface of the support arm.

[0014] In an alternative embodiment, a connecting groove is formed at the bottom of the second end of the connecting arm. The side of the connecting groove opposite to the support arm is penetrated for connecting the connecting block to the support arm. The threaded adjustment hole and the through hole are provided at the bottom of the connecting groove. The connecting block is slidably connected in the connecting groove along the axial line of the connecting bolt, and a movable gap is formed between the connecting block and the bottom of the connecting groove.

[0015] In an alternative embodiment, at least one perforation is formed on the connecting block, and a threaded fixing hole is formed on the support arm corresponding to the perforation. The fixing bolt passes through the perforation and is connected to the threaded fixing hole.

[0016] In a second aspect, the present application further provides a winding assembly, including a swing arm assembly, a connecting shaft, a mounting arm, and a winding roller. The connecting shaft is used to be connected to the frame, the connecting arm is connected to the connecting shaft, the first end of the mounting arm is rotatably connected to the connecting shaft, the first end of the support arm is rotatably connected to the connecting shaft, and the winding roller is parallel to the connecting shaft and its two ends are respectively rotatably connected to the mounting arm and the support arm.

[0017] Beneficial effects: The connecting shaft is fixedly connected to the frame, the connecting arm is fixed to the connecting shaft, the mounting arm and the support arm are symmetrically arranged with respect to the central axis of the connecting shaft, both ends of the winding roller are rotatably connected to the mounting arm and the support arm. By adjusting the connecting bolt and the adjusting bolt, the support arm can be driven to rotate, and then the support arm can be finely adjusted to move away from the unwinding roller, so as to apply pressure to one side of the narrow-width material to prevent wrinkles from occurring during the winding process and improve the winding quality.

[0018] In an alternative embodiment, it further includes a first cylinder. The cylinder barrel of the first cylinder is used for rotatably connecting to the frame. The rotation plane of the first cylinder is perpendicular to the axis of the connecting shaft, and the piston rod of the first cylinder is hinged to the connecting block.

[0019] In an alternative embodiment, the connecting block is provided with a mounting groove corresponding to the piston rod of the first cylinder. The inner wall of the mounting groove is connected with a pin shaft, the pin shaft is parallel to the connecting shaft, a through hole is formed on the piston rod of the first cylinder, and the pin shaft is in clearance fit with the through hole.

[0020] In an alternative embodiment, it further includes a second cylinder. The cylinder barrel of the second cylinder is used for rotatably connecting to the frame. The rotation plane of the second cylinder is perpendicular to the axis of the connecting shaft, and the piston rod of the second cylinder is hinged to the mounting arm.

[0021] In an alternative embodiment, it further includes a mounting block. The mounting block is connected to the mounting arm. The mounting block is provided with a hinge groove corresponding to the piston rod of the second cylinder. The inner wall of the hinge groove is connected with a hinge shaft, the hinge shaft is parallel to the connecting shaft, a through hole is formed on the piston rod of the second cylinder, and the hinge shaft is in clearance fit with the through hole.

[0022] In a third aspect, the present application further provides a slitting machine, which includes two sets of winding assemblies, a frame, a cutter and an unwinding roller for mounting the material to be wound. The connecting shafts of the two sets of winding assemblies are connected to the frame, and the winding rollers of the two sets of winding assemblies are arranged in a staggered manner. The unwinding roller is rotatably connected to the frame, the unwinding roller is parallel to the two winding rollers, and the distance between the end of the unwinding roller close to the support arm and the winding roller is adjusted by a connecting bolt and an adjusting bolt. The cutter is mounted on the frame for cutting the wide-width material.

[0023] Beneficial effects: The wide-width material is wound on the unwinding roller, the cutter cuts the wide-width material into two narrow-width materials, and the two narrow-width materials are wound onto the two winding rollers. However, after cutting, wrinkles are likely to appear on the sides of the two narrow-width materials far from each other and cannot be flattened. Then, by adjusting the connecting bolt and the adjusting bolt, the distance between the support arm and the unwinding roller is increased, the pressure on the sides of the two narrow-width materials far from each other is increased, so as to prevent wrinkles from occurring during the winding process and improve the winding quality. Description of the Drawings

[0024] To more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Structural schematic diagram of a swing arm assembly according to an embodiment of the present application;

[0026] Figure 2 Cross-sectional view of a swing arm assembly according to an embodiment of the present application;

[0027] Figure 3 Structural schematic diagram of a swing arm assembly according to an embodiment of the present application with the connecting arm removed;

[0028] Figure 4 Structural schematic diagram of a connecting block in a swing arm assembly according to an embodiment of the present application;

[0029] Figure 5 Structural schematic diagram of a winding assembly according to an embodiment of the present application;

[0030] Figure 6 Structural schematic diagram of a rewinder according to an embodiment of the present application.

[0031] Explanation of reference numerals:

[0032] 1. Swing arm assembly; 101. Connecting arm; 1011. Thread adjustment hole, 1012. Through hole; 102. Connecting block; 1021. Perforation; 1022. Installation groove; 1023. Threaded connection hole; 103. Activity gap; 104. Support arm; 105. Connecting bolt; 106. Adjusting bolt; 2. Connecting shaft; 3. Installation arm; 4. Winding roller; 5. First cylinder; 6. Pin shaft; 7. Second cylinder; 8. Installation block; 801. Hinge groove; 9. Frame; 10. Unwinding roller; 11. Rotation hole; 12. Installation hole; 13. Threaded locking hole. Specific embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0034] The following will describe the embodiments of the present application in conjunction with Figures 1 to 6 , describing the embodiments of the present application.

[0035] According to an embodiment of the present application, on the one hand, a swing arm assembly is provided, including: a connecting arm 101, a connecting block 102, a support arm 104, a connecting bolt 105, and an adjusting bolt 106;

[0036] Specifically, as Figures 1 to 4 shown, the connecting arm 101 is provided with a first end and a second end. The first end is used to be connected to the frame 9, and the second end is provided with a threaded adjustment hole 1011 and a through hole 1012;

[0037] The connecting block 102 is provided with a threaded connection hole 1023 corresponding to the through hole 1012. Along the axis direction of the through hole 1012, an active gap 103 is provided between the connecting block 102 and the connecting arm 101;

[0038] The first end of the support arm 104 is used to be rotatably connected to the frame 9. The arm body of the support arm 104 is connected to the connecting block 102, and the second end of the support arm 104 is used to install the winding roller 4;

[0039] The connecting bolt 105 includes a first threaded section and a first smooth rod section. The first threaded section passes through the through hole 1012 and is screwed into the threaded connection hole 1023, and the first smooth rod section is slidably connected to the through hole 1012;

[0040] The adjusting bolt 106 includes a second smooth rod section and a second threaded section. The second smooth rod section passes through the threaded adjustment hole 1011 and abuts against the connecting block 102, and the second threaded section is screwed into the threaded adjustment hole 1011. The distance of the active gap 103 is adjusted by the connecting bolt 105 and the adjusting bolt 106, so as to drive the support arm 104 to rotate.

[0041] The first end of the connecting arm 101 is fixedly connected to the frame 9. The second end of the connecting arm 101 is provided with a threaded adjustment hole 1011 and a through hole 1012. The axes of the threaded adjustment hole 1011 and the through hole 1012 are parallel to the rotation plane of the support arm 104. The connecting bolt 105 passes through the through hole 1012, and its first threaded section is connected to the threaded connection hole 1023. The first smooth rod section is slidably connected to the through hole 1012, and the first smooth rod section has a clearance fit with the through hole 1012. The connecting bolt 105 connects the connecting block 102 to the connecting arm 101, so that the connecting block 102 can slide along the axial direction of the connecting bolt 105 relative to the connecting arm 101. The second smooth rod section of the adjusting bolt 106 passes through the threaded adjustment hole 1011 and abuts against the connecting block 102, and the second threaded section is connected to the threaded adjustment hole 1011. Rotating the connecting bolt 105 in the first direction can screw the first threaded section into the threaded connection hole 1023. At the same time, rotating the adjusting bolt 106 in the second direction can screw the second threaded section out of the threaded adjustment hole 1011, so that the second smooth rod section moves away from the connecting block 102, and the distance of the active gap 103 can be reduced. As Figure 6As shown, the connecting block 102 drives the second end of the support arm 104 away from the unwinding roller 10, thereby quickly fine-tuning the distance between the winding roller 4 connected to the second end of the support arm 104 and the unwinding roller 10, and improving the adjustment accuracy.

[0042] By manually adjusting the connecting bolt 105 and the adjusting bolt 106, the operator can intuitively perceive the adjustment effect and shorten the adjustment time. Compared with debugging the electrical mechanism, controlling the distance between the support arm 104 and the unwinding roller 10 through the cylinder has higher efficiency.

[0043] It should be further explained that the first direction and the second direction are opposite. Specifically, the first direction is the clockwise direction and the second direction is the counterclockwise direction.

[0044] In a specific embodiment, as Figure 2 shown, if the second end of the support arm 104 needs to be close to the unwinding roller 10, then rotate the connecting bolt 105 in the counterclockwise direction, which can screw out the first threaded section from the threaded connection hole 1023. At the same time, rotate the adjusting bolt 106 in the clockwise direction, which can screw out the second bolt from the threaded adjustment hole 1011, so that the second smooth rod section pushes the connecting block 102 away from the connecting arm 101, increasing the distance of the movable gap 103. Furthermore, the connecting block 102 drives the second end of the support arm 104 to be close to the unwinding roller 10.

[0045] It should be noted that both sides of the two narrow-width materials away from each other are prone to wrinkles when the pressure is small, that is, the two sides of the wide-width material before being divided. The support arm 104 is arranged corresponding to the side of the wide-width material. After the wide-width material is cut, by quickly adjusting the distance between the support arm 104 and the unwinding roller 10 through the adjusting bolt 106 and the connecting bolt 105, the sides of the narrow-width materials formed after cutting are tightened to prevent wrinkles and the problem of being unable to be flattened.

[0046] It should be further explained that adjusting through the adjusting bolt 106 and the connecting bolt 105 can improve the accuracy. For example, if the adjusting bolt 106 and the connecting bolt 105 can adjust a distance of 1 mm per turn, then rotating half a turn can adjust a distance of 0.5 mm. Therefore, replacing the adjustment of the linear distance with rotational adjustment magnifies the adjustment scale and improves the adjustment accuracy.

[0047] It should be noted that as Figure 2 shown, the distance range of the movable gap 103 along the axial direction of the through hole 1012 is 3 mm to 5 mm. The adjustment of the support arm 104 belongs to fine-tuning. Therefore, there will be no jamming situation.

[0048] In one embodiment, the side surface of the connecting arm 101 is in sliding contact with the side surface of the support arm 104.

[0049] In one embodiment, a connection groove is formed at the bottom of the second end. The side of the connection groove opposite to the support arm 104 is penetrated for connecting the connecting block 102 to the support arm 104. The threaded adjustment hole 1011 and the through hole 1012 are provided at the bottom of the connection groove. The connecting block 102 is slidably connected in the connection groove along the axis of the connecting bolt 105, and a movable gap 103 is formed between the connecting block 102 and the bottom of the connection groove. The connection groove facilitates the installation of the connecting block 102. The connecting block 102 is installed in the connection groove, making the overall structure neater and more reasonable.

[0050] In a specific embodiment, the groove walls on three sides of the connection groove are opened.

[0051] For further explanation of the previous embodiment, as Figures 1 to 2 shown, the connecting arm 101 is provided with an L-shaped notch. The top surface of the connecting block 102 corresponds to the bottom surface of the L-shaped notch, and the side surface of the connecting block 102 corresponds to the side surface of the L-shaped notch.

[0052] In one embodiment, at least one perforation 1021 is formed on the connecting block 102. The support arm 104 is provided with threaded fixing holes corresponding to the perforations 1021. The fixing bolts pass through the perforations 1021 and are connected to the threaded fixing holes.

[0053] In a specific embodiment, as Figure 4 shown, four perforations 1021 are provided, and four threaded fixing holes are provided. Four fixing bolts respectively pass through the four perforations 1021 and are connected to the four threaded fixing holes.

[0054] According to an embodiment of the present application, on the other hand, as Figure 5 shown, a winding assembly is provided, including a swing arm assembly 1, a connecting shaft 2, a mounting arm 3, and a winding roller 4. The connecting shaft 2 is used to be connected to the frame 9. The connecting arm 101 is connected to the connecting shaft 2. The first end of the mounting arm 3 is rotatably connected to the connecting shaft 2. The first end of the support arm 104 is rotatably connected to the connecting shaft 2. The winding roller 4 is parallel to the connecting shaft 2 and its two ends are respectively rotatably connected to the mounting arm 3 and the support arm 104.

[0055] The connecting shaft 2 is fixedly connected to the frame 9. The connecting arm 101 is fixed to the connecting shaft 2. The mounting arm 3 and the support arm 104 are symmetrically arranged about the central axis of the connecting shaft 2. The two ends of the winding roller 4 are rotatably connected to the mounting arm 3 and the support arm 104. By adjusting the connecting bolt 105 and the adjusting bolt 106, the support arm 104 can be driven to rotate, and thus the support arm 104 can be finely adjusted to move it away from the unwinding roller 10 to apply pressure to one side of the narrow-width material to prevent it from wrinkling during the winding process and improve the winding quality.

[0056] In a specific embodiment, as Figure 3As shown in the figure, a mounting hole 12 is formed on the connecting arm 101. The mounting hole 12 is rotatably connected to the connecting shaft 2. Corresponding to the mounting hole 12, a threaded locking hole 13 is formed on the connecting arm 101. A locking bolt is screwed into the threaded locking hole 13 and one end of the locking bolt abuts against the connecting shaft 2 to lock the connecting arm 101 on the connecting shaft 2.

[0057] In one embodiment, as Figure 5 shown, it further includes a first cylinder 5. The cylinder barrel of the first cylinder 5 is used for rotatably connecting to the frame 9. The rotating surface of the first cylinder 5 is perpendicular to the axis of the connecting shaft 2. The piston rod of the first cylinder 5 is hinged to the connecting block 102. The first end of the connecting arm 101 can be locked on the connecting shaft 2. When the support arm 104 is adjusted greatly, the first cylinder 5 drives the connecting arm 101 to rotate, and then the support arm 104 also rotates accordingly. After the winding roller 4 reaches the preset position, the connecting arm 101 is locked on the connecting shaft 2. During the winding process, when the pressure on the side of the narrow-width material close to the support arm 104 is insufficient and wrinkles occur, quickly adjust the connecting bolt 105 and the adjusting bolt 106 to reduce the distance of the movable gap 103 and increase the distance between the support arm 104 and the unwinding roller 10, thereby adjusting the distance between the end of the winding roller 4 close to the support arm 104 and the unwinding roller 10 and increasing the pressure on the narrow-width material to prevent wrinkles from occurring during the winding process.

[0058] In one embodiment, as Figures 4 to 5 shown, the connecting block 102 is provided with a mounting groove 1022 corresponding to the piston rod of the first cylinder 5. The inner wall of the mounting groove 1022 is connected with a pin shaft 6. The pin shaft 6 is parallel to the connecting shaft 2. A through hole 1021 is formed on the piston rod of the first cylinder 5. The pin shaft 6 is in clearance fit with the through hole 1021. The clearance fit between the pin shaft 6 and the through hole 1021 has a movable amount and does not affect the adjustment of the distance of the movable gap 103.

[0059] In one embodiment, as Figure 5 shown, it further includes a second cylinder 7. The cylinder barrel of the second cylinder 7 is used for rotatably connecting to the frame 9. The rotating surface of the second cylinder 7 is perpendicular to the axis of the connecting shaft 2. The piston rod of the second cylinder 7 is hinged to the mounting arm 3. The first cylinder 5 drives the connecting arm 101 to rotate, and then drives the support arm 104 to rotate. The second cylinder 7 drives the mounting arm 3 to rotate. The first cylinder 5 and the second cylinder 7 jointly drive the winding roller 4 to move to adjust the distance between the winding roller 4 and the unwinding roller 10.

[0060] In one embodiment, it further includes a mounting block 8. The mounting block 8 is connected to the mounting arm 3. The mounting block 8 is provided with a hinge groove 801 corresponding to the piston rod of the second cylinder 7. The inner wall of the hinge groove 801 is connected with a hinge shaft, which is parallel to the connecting shaft 2. A through hole is provided on the piston rod of the second cylinder 7, and the hinge shaft is in clearance fit with the through hole. The clearance fit between the hinge shaft and the through hole has a play, which does not affect the adjustment of the distance of the movement clearance 103.

[0061] In a specific embodiment, connecting protrusions are fixedly connected to the bottoms of the cylinder barrels of the first cylinder 5 and the second cylinder 7. Two rotating holes 11 are axially provided in the two connecting protrusions along the connecting shaft 2. Two fixed shafts respectively pass through the two rotating holes 11 and are fixed on the frame 9, and the fixed shafts are rotatably connected to the rotating holes 11.

[0062] According to an embodiment of the present application, on the other hand, as Figure 6 shown, a rewinder is provided, which includes two sets of winding assemblies, a frame 9, a cutter, and an unwinding roller 10 for mounting the material to be wound. The connecting shafts 2 of the two sets of winding assemblies are connected to the frame 9, and the winding rollers 4 of the two sets of winding assemblies are arranged in a staggered manner. The unwinding roller 10 is rotatably connected to the frame 9, and the unwinding roller 10 is parallel to the two winding rollers 4. The distance between one end of the unwinding roller 10 close to the support arm 104 and the winding roller 4 is adjusted by the connecting bolt 105 and the adjusting bolt 106. The cutter is installed on the frame 9 for cutting the wide-width material.

[0063] The wide-width material is wound on the unwinding roller 10, and the cutter cuts the wide-width material into two narrow-width materials. The two narrow-width materials are wound onto the two winding rollers 4. However, after cutting, wrinkles are likely to appear on the sides of the two narrow-width materials far from each other and cannot be flattened. Then, by adjusting the connecting bolt 105 and the adjusting bolt 106, the distance between the support arm 104 and the unwinding roller 10 is increased, the pressure on the sides of the two narrow-width materials far from each other is increased, wrinkles during the winding process are prevented, and the winding quality is improved.

[0064] Next, taking an embodiment as an example, in combination with Figures 1 to 6 the above all solutions will be comprehensively elaborated.

[0065] The slitting machine divides the wide-width material into two narrow-width materials, and two winding rollers 4 wind the two narrow-width materials. The distance between the winding roller 4 and the unwinding roller is adjusted by the first cylinder 5 and the second cylinder 7. However, after the wide-width material is slit, the tension on the mutually remote sides of the two narrow-width materials is likely to become smaller, and thus wrinkles are likely to occur when winding onto the winding roller 4. The support arm 104 corresponds to the mutually remote sides of the narrow-width material. When wrinkles occur on this side, the staff quickly rotates the connecting bolt 105 in the clockwise direction, and the first threaded section can be screwed into the threaded connection hole 1023. At the same time, the adjusting bolt 106 is rotated in the counterclockwise direction, and the second threaded section can be screwed out of the threaded adjustment hole 1011, so that the second smooth rod section moves away from the connecting block 102, and the distance of the movable gap 103 can be reduced. Furthermore, the connecting block 102 drives the second end of the support arm 104 away from the unwinding roller 10, so that the end of the winding roller 4 close to the support arm 104 moves away from the unwinding roller 10, increasing the pressure on this end and the narrow-width material, and preventing wrinkles from occurring during the winding process. The pin shaft 6 and the through hole 1021 are in clearance fit, and the hinge shaft and the through hole are in clearance fit. The pin shaft 6 and the through hole 1021 have a certain amount of movement, and the hinge shaft and the through hole have a certain amount of movement, which does not affect the adjustment of the distance of the movable gap 103.

[0066] Although the embodiments of the present application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations all fall within the scope defined by the appended claims of the present application.

Claims

1. An arm assembly, characterized in that, Comprising: A connecting arm (101) is provided with a first end and a second end. The first end is used for connecting to a frame (9), and a threaded adjustment hole (1011) and a through hole (1012) are formed at the second end. A connecting block (102) is provided with a threaded connection hole (1023) corresponding to the through hole (1012). Along the axis direction of the through hole (1012), an activity gap (103) is provided between the connecting block (102) and the connecting arm (101). A support arm (104), the first end of which is used for rotatably connecting to the frame (9), the body of the support arm (104) is connected to the connecting block (102), and the second end of the support arm (104) is used for installing a winding roller (4). A connecting bolt (105) includes a first threaded section and a first smooth rod section. The first threaded section passes through the through hole (1012) and is screwed to the threaded connection hole (1023), and the first smooth rod section is slidably connected to the through hole (1012). An adjustment bolt (106) includes a second smooth rod section and a second threaded section. The second smooth rod section passes through the threaded adjustment hole (1011) and abuts against the connecting block (102), and the second threaded section is screwed to the threaded adjustment hole (1011). The distance of the activity gap (103) is adjusted by the connecting bolt (105) and the adjustment bolt (106), so as to drive the support arm (104) to rotate.

2. The swing arm assembly according to claim 1, characterized in that, The side surface of the connecting arm (101) is slidably abutted against the side surface of the support arm (104).

3. The swing arm assembly according to claim 2, wherein, A connecting groove is formed at the bottom of the second end of the connecting arm (101). The side of the connecting groove opposite to the support arm (104) is penetrated for connecting the connecting block (102) to the support arm (104). The threaded adjustment hole (1011) and the through hole (1012) are arranged at the bottom of the connecting groove. The connecting block (102) is slidably connected in the connecting groove along the axis of the connecting bolt (105), and the activity gap (103) is formed between the connecting block (102) and the bottom of the connecting groove.

4. The swing arm assembly according to claim 3, wherein, At least one perforation (1021) is formed on the connecting block (102). The support arm (104) is provided with a threaded fixing hole corresponding to the perforation (1021), and a fixing bolt passes through the perforation (1021) and is connected to the threaded fixing hole.

5. A winding component, characterized in that, Comprising the swing arm assembly (1) according to any one of claims 1 to 4, a connecting shaft (2), a mounting arm (3) and a winding roller (4). The connecting shaft (2) is used for connecting to the frame (9). The connecting arm (101) is connected to the connecting shaft (2). The first end of the mounting arm (3) is rotatably connected to the connecting shaft (2). The first end of the support arm (104) is rotatably connected to the connecting shaft (2). The winding roller (4) is parallel to the connecting shaft (2) and its two ends are respectively rotatably connected to the mounting arm (3) and the support arm (104).

6. The coiling assembly according to claim 5, wherein It further includes a first cylinder (5). The cylinder barrel of the first cylinder (5) is used for rotatably connecting with the frame (9). The rotation plane of the first cylinder (5) is perpendicular to the axis of the connecting shaft (2). The piston rod of the first cylinder (5) is hinged to the connecting block (102).

7. The coiling assembly according to claim 6, wherein, The connecting block (102) is provided with a mounting groove (1022) corresponding to the piston rod of the first cylinder (5). A pin shaft (6) is connected to the inner wall of the mounting groove (1022). The pin shaft (6) is parallel to the connecting shaft (2). A through hole (1021) is formed in the piston rod of the first cylinder (5). The pin shaft (6) is in clearance fit with the through hole (1021).

8. The coiling assembly according to claim 7, wherein, It further includes a second cylinder (7). The cylinder barrel of the second cylinder (7) is used for rotatably connecting with the frame (9). The rotation plane of the second cylinder (7) is perpendicular to the axis of the connecting shaft (2). The piston rod of the second cylinder (7) is hinged to the mounting arm (3).

9. The winding assembly according to claim 8, characterized in that, It further includes a mounting block (8). The mounting block (8) is connected to the mounting arm (3). The mounting block (8) is provided with a hinge groove (801) corresponding to the piston rod of the second cylinder (7). A hinge shaft is connected to the inner wall of the hinge groove (801). The hinge shaft is parallel to the connecting shaft (2). A through hole is formed in the piston rod of the second cylinder (7). The hinge shaft is in clearance fit with the through hole.

10. A rewinder, characterized in that, Comprising: Two sets of winding assemblies according to any one of claims 5 to 9, a frame (9), a cutting knife, and a unwinding roller (10) for mounting a material to be wound. The connecting shafts (2) of the two sets of winding assemblies are connected to the frame (9). The winding rollers (4) of the two sets of winding assemblies are arranged in a staggered manner. The unwinding roller (10) is rotatably connected to the frame (9). The unwinding roller (10) is parallel to the two winding rollers (4). The distance between one end of the unwinding roller (10) close to the support arm (104) and the winding roller (4) is adjusted by the connecting bolt (105) and the adjusting bolt (106). The cutting knife is mounted on the frame (9) for cutting a wide-width material.

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