Trimming mechanism for composite paper

Abstract

The utility model discloses a trimming mechanism for composite paper. The trimming mechanism comprises a mounting frame, a roller, two groups of cutting units, two first dust collection parts and two second dust collection parts, composite paper passes through the roller, a wrap angle is formed at the upper position of the roller, when the two cutting discs enter the annular groove, the two sides of the composite paper passing through the roller are cut off, and meanwhile the cutting discs are driven to rotate. When the two sides of the composite paper are cut off by the cutting disc, generated chippings are sucked away by the first dust suction part through the annular groove, and the cut-off parts serve as waste edges and are sucked away by the second dust suction part. The device has the beneficial effects that the structure is simple, and the trimming position of the composite paper, the roller and the disc cutter are ensured to be clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to the edge trimming of composite paper, especially to an edge trimming mechanism of composite paper. BACKGROUND

[0002] After the composite paper is completed by the card paper and the composite film, the surface film of the composite film needs to be peeled off, which is generally completed by a peeling rewinder. That is, the collected paper roll is installed on the unwinding shaft of the peeling rewinder, and the composite paper on the paper roll is unwound. After the surface film is peeled off by the peeling rewinder, the winding shaft of the peeling rewinder is installed with a new roll, and the composite paper with the peeled film is rewound on the roll. Because the two sides of the composite paper are not aligned during the composite process, in order to improve the quality of the final composite paper, the peeling rewinder generally includes an edge trimming mechanism, that is, the two sides of the composite paper are cut off as waste edges by a cutter. For the composite paper, the unwinding shaft, the winding shaft and the edge trimming mechanism are all similar to the cloth. For the edge trimming mechanism, the composite paper is different from the cloth. When the two sides of the composite paper are cut off, a large amount of debris will be generated at the cutting position, which is easy to adhere to the composite paper, the roller and the disc cutter. SUMMARY

[0003] The present application provides an edge trimming mechanism for composite paper, which can solve the problem that the debris generated when the existing edge trimming mechanism cuts off the two sides of the composite paper is easy to adhere to the composite paper, the roller and the disc cutter.

[0004] In the present application, an edge trimming mechanism for composite paper is provided, which includes:

[0005] a mounting frame;

[0006] a horizontal roller rotatably connected to the mounting frame, and two annular grooves on the roller surface;

[0007] two groups of cutting units installed on the mounting frame above the roller and corresponding to the two annular grooves respectively; each cutting unit includes a first mounting part connected to the mounting frame, a second mounting part capable of adjusting the position up and down relative to the first mounting part, a disc cutter rotatably connected to the lower end of the second mounting part, and a pneumatic cylinder for driving the first mounting part to move so that the disc cutter can be switched between entering and leaving the annular groove; when the disc cutter enters the annular groove, there is a gap between the disc cutter and the three inner walls of the annular groove;

[0008] two first dust collection parts installed on the mounting frame below the roller and corresponding to the two annular grooves respectively;

[0009] two second dust collection parts installed on the mounting frame and corresponding to the positions outside the two annular grooves respectively.

[0010] In some embodiments, both of the annular grooves are adjustable in position on the roll surface along the axial direction of the roll; both of the two sets of cutting units, both of the first dust suction parts and both of the second dust suction parts are adjustable in position on the mounting frame along the axial direction of the roll.

[0011] In some embodiments, the roll comprises a rotating shaft for rotationally connecting with the mounting frame, two first roll bodies adjustable in position on the rotating shaft along the axial direction of the rotating shaft, and a plurality of second roll bodies detachable from the rotating shaft and different in length.

[0012] In some embodiments, the second roll body is composed of at least two fan-shaped annular parts.

[0013] In some embodiments, the suction nozzles of the two second dust suction parts are rotationally adjustable in position on the mounting frame about an axis parallel to the axis of the roll.

[0014] In some embodiments, the two inner walls of the annular groove opposite to each other are mirror-symmetric and inclined, so that the width of the annular groove decreases as approaching the axis of the roll.

[0015] In summary, in the present application, a trimming mechanism for composite paper comprises a mounting frame, a roll, two sets of cutting units, two first dust suction parts and two second dust suction parts. The composite paper passes through the roll, and an included angle is formed at the upper position of the roll. When the two disc cutters enter the annular groove, the composite paper passing through the roll is cut off on both sides, and the disc cutters are also rotated. When the composite paper is cut off on both sides by the disc cutters, the generated debris is sucked away by the first dust suction parts through the annular groove, and the cut-off parts are sucked away by the second dust suction parts as waste edges. The trimming mechanism has the beneficial effects of ensuring the trimming position of the composite paper, the cleanliness of the roll and the disc cutters. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to better illustrate the technical solutions in the embodiments or background of the present application, the drawings required to be used in the embodiments or background of the present application will be described below.

[0017] Figure 1 is a schematic view of the present application;

[0018] Figure 2 is a front view of the present application;

[0019] Figure 3 is Figure 2 is an enlarged schematic view of part A in the figure;

[0020] Figure 4 is a side sectional view of the present application;

[0021] Figure 5 is a schematic view of the present application with another roll arrangement.

[0022] In the figure,

[0023] 1, mounting frame; 1a, side plate; 1b, mounting plate; 1c, mounting rod;

[0024] 2, roller; 2a, annular groove; 2a1, inner wall; 2b, rotating shaft; 2c, first roller body; 2d, second roller body;

[0025] 3, cutting unit; 3a, first mounting part; 3b, second mounting part; 3c, disc cutter; 3d, air cylinder;

[0026] 4, first dust collection part; 4a, third mounting part; 4b, suction nozzle; 4c, connecting pipe; 4d, collection box; 4e, fan;

[0027] 5, second dust collection part. DETAILED DESCRIPTION

[0028] Further description will be made in combination with the accompanying drawings, which are only examples and not drawn in strict proportion. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood as the general meaning understood by the person skilled in the art to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly. The embodiments in the present application can be combined with each other without conflict.

[0029] Please refer to Figure 1 and Figure 2 A kind of trimming mechanism of composite paper, including mounting frame 1, roller 2, two groups of cutting unit 3, two first dust collection parts 4 and two second dust collection parts 5.

[0030] Mounting frame 1 is used to install trimming mechanism to stripping rewinder. More specifically, mounting frame 1 can include two side plates 1a, mounting plate 1b fixedly connected between the two side plates 1a and mounting rod 1c.

[0031] Roller 2 is rotatably connected to mounting frame 1 and is horizontal. More specifically, two side plates 1a can be provided with bearing seat, and the two ends of roller 2 are connected to the inner ring of bearing in the two bearing seats. There are two annular grooves 2a on the roller surface of roller 2.

[0032] Two sets of cutting units 3 are installed on the mounting frame 1 above the rollers 2, respectively corresponding to the two annular grooves 2a. More specifically, the mounting plate 1b can be higher than the rollers 2, and the two sets of cutting units 3 are installed on the mounting plate 1b.

[0033] One set of cutting units 3 includes a first mounting part 3a, a second mounting part 3b, a disc cutter 3c, and a cylinder 3d.

[0034] Referring to Figure 1 and Figure 3 , the first mounting part 3a is used to connect with the mounting frame 1. The second mounting part 3b can be adjusted in position up and down relative to the first mounting part 3a. More specifically, the first mounting part 3a is provided with a guide slot, and the second mounting part 3b is provided with a guide block which is matched and inserted into the guide slot. The disc cutter 3c is rotationally connected to the lower end of the second mounting part 3b. The cylinder 3d is used to drive the first mounting part 3a to move, through which movement, the disc cutter 3c can be switched between entering and leaving the annular groove 2a. That is, the composite paper passes through the rollers 2, and the two disc cutters 3c are both in the state of entering the annular groove 2a, the composite paper passing through the rollers 2 is cut off the parts on both sides, at the same time, the disc cutters 3c are also rotated. In addition, the disc cutters 3c are all spaced from the three inner walls 2a1 of the annular groove 2a when entering the annular groove 2a.

[0035] Referring to Figure 1 and Figure 4 , two first dust suction parts 4 are installed on the mounting frame 1 below the rollers 2, respectively corresponding to the two annular grooves 2a. More specifically, the mounting rod 1c can be lower than the rollers 2; the first dust suction part 4 can include a third mounting part 4a, a suction nozzle 4b, a connecting pipe 4c, a collecting box 4d, and a fan 4e (for the convenience of representation, the first dust suction part 4 is not completely shown in the rest of the drawings except Figure 4 ); the third mounting part 4a is fixedly connected to the rollers 2, the suction nozzle 4b is installed on the third mounting part 4a, the connecting pipe 4c connects the suction nozzle 4b and the collecting box 4d, the collecting box 4d is provided with a filter element inside, and the fan 4e is in the collecting box 4d, which is used to make the air enter from the suction nozzle 4b, pass through the connecting pipe 4c and the filter element, and leave from the collecting box 4d.

[0036] Two second dust suction parts 5 are installed on the mounting frame 1, respectively corresponding to the positions on the outer sides of the two annular grooves 2a. More specifically, the two second dust suction parts 5 can also be installed on the mounting rod 1c, and the structure of the second dust suction part 5 refers to that of the first dust suction part 4 (for the convenience of representation, the second dust suction part 5 is not completely shown in the rest of the drawings except Figure 4 ); the difference is that the shapes of the suction nozzles 4b of the two are different.

[0037] The scraps generated when the composite paper is cut by the disc cutter 3c are sucked by the first suction part 4 through the annular groove 2a, and the cut parts are sucked by the second suction part 5 as waste edges.

[0038] In some embodiments, the two annular grooves 2a can be adjusted in the axial direction of the roller 2 to be located on the roller surface. Correspondingly, the two sets of cutting units 3, the two first suction parts 4 and the two second suction parts 5 can be adjusted in the axial direction of the roller 2 to be located on the mounting frame 1.

[0039] By adjusting the positions of the annular grooves 2a, the cutting units 3, the first suction parts 4 and the second suction parts 5, the device can be applied to composite papers of different widths, and the width of the cut parts of the composite paper can also be adjusted.

[0040] For the cutting unit 3, the connection between the first mounting part 3a and the mounting frame 1 can be a sliding connection with damping, or a magnet can be embedded in the first mounting part 3a to attract the mounting plate 1b. By pushing the first mounting part 3a, the cutting unit 3 can slide relative to the mounting plate 1b.

[0041] Please refer to Figure 1 and Figure 3 For the first suction part 4 and the second suction part 5, the third mounting part 4a can be screwed with a first bolt, and tightening the first bolt can tightly fix the third mounting part 4a to the mounting rod 1c.

[0042] For the roller 2, a plurality of annular grooves 2a with different positions can be provided on the roller surface.

[0043] Please refer to Figure 5 For the roller 2, preferably, the roller 2 can include a rotating shaft 2b, two first roller bodies 2c and a plurality of second roller bodies 2d. The rotating shaft 2b is used for rotating connection of the mounting frame 1. The first roller body 2c can be adjusted in the axial direction of the rotating shaft 2b to be fixed on the rotating shaft 2b. More specifically, the first roller body 2c is sleeved on the rotating shaft 2b and can slide relative to the rotating shaft 2b. A second bolt is screwed on the first roller body 2c, and tightening the second bolt can tightly fix the first roller body 2c to the rotating shaft 2b. The plurality of second roller bodies 2d have different lengths, and any one of them can be selected to be mounted on the rotating shaft 2b, i.e., the second roller body 2d and the rotating shaft 2b are detachable. According to the distance required between the two annular grooves 2a, a second roller body 2d with appropriate length is mounted on the rotating shaft 2b, and then the positions of the two first roller bodies 2c are adjusted. The first roller body 2c and the second roller body 2d cooperate with the rotating shaft 2b to form an annular groove 2a.

[0044] In some embodiments, based on the above-mentioned embodiment that the roller 2 includes a rotating shaft 2b, two first roller bodies 2c and a plurality of second roller bodies 2d, the second roller body 2d is composed of at least two fan-shaped annular parts.

[0045] If the second roller body 2d is integrated, it needs to be installed into the rotating shaft 2b in a sleeved manner. When the second roller body 2d is replaced, the rotating shaft 2b needs to be dismounted from the mounting frame 1. If the second roller body 2d is designed to be composed of at least two fan-shaped ring parts, when the second roller body 2d is replaced, the rotating shaft 2b does not need to be dismounted from the mounting frame 1, which is more convenient.

[0046] Please refer to Figure 1 and Figure 4 In some embodiments, the suction nozzles 4b of the two second suction parts 5 can be adjusted in a rotating manner around the axis of the roller 2 at fixed positions of the mounting frame 1. More specifically, in combination with the above-mentioned “a first bolt can be threadedly connected to the third mounting part 4a for the first suction part 4 and the second suction part 5”, when the first bolt is loosened, the third mounting part 4a can move relative to the mounting rod 1c while also rotating around the mounting rod 1c.

[0047] After the trimming mechanism is mounted on the stripping rewinder, according to the specific situation of the wrapping angle of the composite paper on the roller 2, the suction nozzles 4b of the two second suction parts 5 are adjusted in a rotating manner around the axis of the roller 2, so as to better suck away the waste edges cut from the composite paper.

[0048] Please refer to Figure 3 In some embodiments, the two inner walls 2a1 of the annular groove 2a are mirror-symmetric and inclined, so that the width of the annular groove 2a decreases as it approaches the axis of the roller 2.

[0049] When the composite paper is cut by the disc cutter 3c, the generated debris is more likely to enter the first suction nozzle 4b along the annular groove 2a and be sucked away.

Claims

1. A trimming mechanism for composite paper, characterized in that, The utility model relates to a cutting device for cutting the edge of a roll of paper, comprising: a mounting frame (1); a horizontal roller (2) rotatably connected to the mounting frame (1), the roller surface having two annular grooves (2a); two sets of cutting units (3) mounted on the mounting frame (1) above the roller (2) and corresponding to the two annular grooves (2a) respectively; each cutting unit (3) comprising a first mounting part (3a) for connecting to the mounting frame (1), a second mounting part (3b) capable of adjusting the position up and down relative to the first mounting part (3a), a disc cutter (3c) rotatably connected to the lower end of the second mounting part (3b), and a pneumatic cylinder (3d) for driving the first mounting part (3a) to move so that the disc cutter (3c) can switch between entering and leaving the annular groove (2a); when the disc cutter (3c) enters the annular groove (2a), there is a gap between the disc cutter (3c) and the three inner walls (2a1) of the annular groove (2a); two first dust suction parts (4) mounted on the mounting frame (1) below the roller (2) and corresponding to the two annular grooves (2a) respectively; two second dust suction parts (5) mounted on the mounting frame (1) and corresponding to the positions outside the two annular grooves (2a) respectively.

2. The trimmer mechanism of claim 1 wherein, Each of the two annular grooves (2a) can adjust the position on the roller surface along the axial direction of the roller (2); the two sets of cutting units (3), the two first dust suction parts (4) and the two second dust suction parts (5) can adjust the position on the mounting frame (1) along the axial direction of the roller (2).

3. The trimmer mechanism of claim 2 wherein, The roller (2) comprises a rotating shaft (2b) for rotatably connecting to the mounting frame (1), two first roller bodies (2c) capable of adjusting the position on the rotating shaft (2b) along the axial direction of the rotating shaft (2b), and a plurality of second roller bodies (2d) detachable from the rotating shaft (2b) and having different lengths.

4. The trimmer mechanism of claim 3 wherein, The second roller body (2d) is composed of at least two fan-shaped annular parts.

5. The trimmer mechanism for a composite paper according to claim 1, wherein The suction nozzles (4b) of the two second dust suction parts (5) can rotatably adjust the position on the mounting frame (1) along the axial direction of the roller (2).

6. The trimmer mechanism of claim 1 wherein, The two inner walls (2a1) of the annular groove (2a) opposite to each other are mirror-symmetric and inclined, so that the width of the annular groove (2a) decreases as it approaches the axial line of the roller (2).

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