A round cutting knife assembly, an upper round cutting knife assembly and a small diaphragm slitting machine

Abstract

The utility model relates to the field of small diaphragm slitting machine of round cutting knife, a round cutting knife assembly, including annular round cutting blade, annular tool seat and annular cover plate, the round cutting blade is clamped between the tool seat and the cover plate, and the tool seat is connected with the cover plate by screw thread or bolt thread, the outer diameter of the round cutting blade is all much larger than the outer diameter of the tool seat and the cover plate, prevents the cutting edge of the round cutting blade from not being exposed and being unable to cut, the thickness of the round cutting blade is 0.70mm to 1.00mm, and the overall thickness is 5.0mm to 19mm. Fill in the blank of the lack of the round cutting knife when the slitting width is below 20mm, and the cut is smooth, has no debris, improves the slitting speed and promotes the product qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of small diaphragm slitting machines equipped with circular cutters, and more particularly to a circular cutter assembly, an upper circular cutter assembly, and a small diaphragm slitting machine. Background Technology

[0002] A slitting machine is a mechanical device that cuts wide sheets of paper, mica tape, or film into multiple narrow strips. It is commonly used in papermaking machinery, wire and cable mica tape production, and printing and packaging machinery. Circular slitting blades have unique advantages over straight blades, such as faster slitting speed, continuous operation, wider application range, and higher slitting quality. However, in the diaphragm slitting industry, it is often necessary to slit some slitting diaphragms again, requiring a small slitting machine. In this case, existing circular slitting blade assemblies, due to their inherent thickness limitations, are not suitable for slitting widths below 20mm, and can only be used with straight blades, failing to utilize the advantages of circular slitting blades. There is a lack of circular slitting blade assemblies specifically designed for slitting films with widths below 20mm.

[0003] Therefore, it is necessary to provide a circular cutter assembly, an upper circular cutter assembly, and a small diaphragm slitting machine to solve the above-mentioned technical problems. Utility Model Content

[0004] To overcome the problem in the existing diaphragm slitting industry that there is a lack of circular cutter assemblies for films with a slitting width of less than 20mm when some slitting diaphragms need to be slitted again, thus failing to take full advantage of the advantages of circular cutters, this utility model provides a circular cutter assembly, an upper circular cutter assembly, and a small diaphragm slitting machine.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A circular cutter assembly includes an annular circular cutting blade, an annular blade holder, and an annular cover plate. The circular cutting blade is clamped between the blade holder and the cover plate, which are threaded together by screws or bolts. The outer diameter of the circular cutting blade is significantly larger than the outer diameters of both the blade holder and the cover plate to prevent the cutting edge of the circular cutting blade from being obscured and thus unable to cut. The thickness of the circular cutting blade is 0.70 mm to 1.00 mm, and the overall thickness is 5.0 mm to 19 mm.

[0007] As a further embodiment of this utility model: the cover plate is provided with a cover plate fixing hole; the tool holder is provided with a tool holder fixing hole; the diameters of the cover plate fixing hole and the tool holder fixing hole are different, the larger diameter hole is a tapered hole used to accommodate the screw head, thereby reducing the overall thickness of the circular cutter assembly, and the smaller diameter hole is provided with an internal thread for connecting the screw shank, which can save nuts and reduce the overall thickness of the circular cutter assembly.

[0008] As a further embodiment of this utility model: the blade holder has two blade holder first steps and blade holder second steps with successively decreasing outer diameters in the thickness direction. The inner rings of the circular cutting blade and the cover plate are respectively sleeved on the outer ring end faces of the blade holder first step and blade holder second step. The blade holder first step and blade holder second step can both ensure the quality of the blade holder and reduce the overall thickness of the circular cutting blade assembly.

[0009] As a further embodiment of this utility model, it also includes a tension spring; the circular cutting blade is disc-shaped; and the tension spring is tightly clamped at the circumferential angle end face between the circular cutting blade and the cover plate.

[0010] As a further embodiment of this utility model: its overall thickness is 5.0mm to 5.3mm and / or the thickness of the circular cutting blade is 0.70mm to 0.73mm.

[0011] A circular cutter assembly is also provided, including the above-mentioned circular cutter assembly. There are several circular cutter assemblies, which are sleeved on the upper cutter shaft. The outer sides of the two outermost circular cutter assemblies are respectively fixed with a first fixing sleeve and a second fixing sleeve.

[0012] As a further embodiment of this utility model, it also includes several annular upper spacers, which are disposed between pairs of the circular cutting blade assemblies to adjust the spacing between the circular cutting blade assemblies to meet the cutting requirements of different widths.

[0013] A small diaphragm slitting machine is also provided, including the aforementioned upper circular cutter assembly.

[0014] As a further embodiment of this utility model, it also includes a lower circular cutter assembly, which includes a plurality of lower circular cutter blades that are equal in number, spacing, and position to the circular cutter assembly.

[0015] As a further embodiment of this utility model, it also includes a straight blade assembly, which is disposed on the opposite side of the upper circular cutter assembly, and can be switched between the upper circular cutter assembly and the straight blade assembly at any time.

[0016] The beneficial effects of the circular cutter assembly, the upper circular cutter assembly, and the small diaphragm slitting machine involved in this utility model are as follows:

[0017] This invention addresses the problem of existing circular cutter assemblies being unsuitable for slicing widths below 20mm due to their inherent thickness limitations. These cutters are limited to straight cutters, failing to utilize the advantages of circular cutters and lacking a suitable slicing blade for films with widths below 20mm. This fills the gap in slicing films with widths below 20mm, resulting in smooth cuts, no debris, improved slicing speed, and higher product yield. Attached Figure Description

[0018] Figure 1 This is an exploded view of the circular cutter assembly of this utility model;

[0019] Figure 2 This is a rear view of the circular cutter assembly of this utility model;

[0020] Figure 3 This is a utility model Figure 2 Sectional view along the AA direction;

[0021] Figure 4 This is a utility model Figure 3 Enlarged view at point B in the middle;

[0022] Figure 5 This is a utility model Figure 3 Enlarged view at point C;

[0023] Figure 6 This is a three-dimensional view of the tool holder structure of this utility model;

[0024] Figure 7 This is a three-dimensional view of the upper circular cutter assembly structure of this utility model;

[0025] Figure 8 This is an assembly diagram of the upper circular cutter assembly and the lower circular cutter assembly according to the first embodiment of this utility model;

[0026] Figure 9 This is an assembly diagram of the upper and lower circular cutter assemblies from a first perspective of the second embodiment of this utility model;

[0027] Figure 10 This is an assembly diagram of the upper and lower circular cutter assemblies from a second perspective of the second embodiment of this utility model;

[0028] Figure 11 This is a three-dimensional structural view of the straight blade assembly of this utility model;

[0029] Figure 12 This is a three-dimensional structural view of a small diaphragm slitting machine with an upper circular cutter assembly and a lower circular cutter assembly installed according to this utility model;

[0030] Figure 13 This is a three-dimensional structural view of a small diaphragm slitting machine equipped with an upper circular cutter assembly, a lower circular cutter assembly, and a straight cutter assembly according to this utility model;

[0031] Figure 14 This is a utility model Figure 13 Enlarged view of point D in the middle.

[0032] In the diagram: 100-Upper circular cutter assembly, 110-Circular cutter assembly, 111-Cut holder, 1111-Cut holder body, 1112-First step of cutter holder, 1113-Second step of cutter holder, 1114-Cut holder fixing hole, 112-Circular cutter blade, 113-Tension spring, 114-Cover plate, 114a-Cover plate fixing hole, 120-First fixing sleeve, 130-Second fixing sleeve, 140-Upper cutter assembly shaft, 150-Upper cutter assembly gear, 160-Mounting plate, 161-Upper mounting block, 162-Mounting plate body, 163-Lower mounting block, 170-Swing arm, 180-Upper circular cutter rotating shaft, 190-Upper spacer, 2 00-Lower circular cutter assembly, 210-Lower circular cutter blade, 220-Lower circular cutter assembly gear, 230-Lower circular cutter fixing seat, 240-Fixing seat connecting rod, 250-Lower spacer, 260-Lower cutter assembly shaft, 270-Lower locking nut, 300-Straight cutter assembly, 310-Rocker arm spindle, 320-Straight cutter shaft, 330-Shim, 340-Straight cutter, 350-Straight cutter assembly rocker arm, 360-Drive rotating component, 400-Slitting machine body, 500-Straight cutter roller assembly, 510-First slitting roller, 520-Tensioning wheel, 530-Second slitting roller, 540-Third slitting roller, 550-Fourth slitting roller. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0034] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "center," "longitudinal," "lateral," "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] like Figure 1 , Figure 2 As shown, a circular cutter assembly 110 includes an annular circular cutter blade 112, an annular blade holder 111, and an annular cover plate 114. The circular cutter blade 112 is clamped between the blade holder 111 and the cover plate 114, which are connected by screws or bolts. The outer diameter of the circular cutter blade 112 is much larger than the outer diameters of both the blade holder 111 and the cover plate 114 to prevent the cutting edge of the circular cutter blade 112 from being obscured and unable to cut. The thickness of the circular cutter blade 112 is from 0.70 mm to 1.00 mm, optionally 0.71 mm, 0.72 mm, or 0.73 mm. The thicknesses are: m, 0.74mm, 0.75mm, 0.76mm, 0.77mm, 0.78mm, 0.79mm, 0.80mm, 0.81mm, 0.82mm, 0.83mm, 0.84mm, 0.85mm, 0.86mm, 0.87mm, 0.88mm, 0.89mm, 0.90mm, 0.91mm, 0.92mm, 0.93mm, 0.94mm, 0.95mm, 0.96mm, 0.97mm, 0.98mm, 0.99mm, 1.00mm; the overall thickness ranges from 5.0mm to 19mm. 5.1mm is also available.

[0037] 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm, 5.8mm, 5.9mm, 6.0mm, 6.1mm, 6.2mm,

[0038] 6.3mm, 6.4mm, 6.5mm, 6.6mm, 6.7mm, 6.8mm, 6.9mm, 7.0mm, 7.1mm, 7.2mm, 7.3mm,

[0039] 7.4mm, 7.5mm, 7.6mm, 7.7mm, 7.8mm, 7.9mm, 8.0mm, 8.5mm, 9.0mm, 9.5mm, 10mm,

[0040] 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm.

[0041] By configuring the circular cutter assembly 110 such that the circular cutter blade 112 is sandwiched between the cutter holder 111 and the cover plate 114, and controlling the thickness of the circular cutter blade 112 between 0.70mm and 1.00mm, while controlling the sum of the thicknesses of the circular cutter blade 112, the cutter holder 111, and the cover plate 114 between 5.0mm and 8.0mm, the problem of existing circular cutters being unsuitable for cutting films with a slitting width of less than 20mm due to their inherent thickness defects is solved. This means they can only be used for straight cutters, failing to utilize the advantages of circular cutters and lacking suitable circular cutters for slitting films with a width of less than 20mm. This fills the gap in the lack of suitable circular cutters for cutting films with a slitting width of less than 20mm, resulting in smooth cuts, no debris, improved slitting speed, and increased product yield.

[0042] like Figure 3 , Figure 5 As shown, the cover plate 114 is provided with a cover plate fixing hole 114a; the cutter holder 111 is provided with a cutter holder fixing hole 1114; the diameters of the cover plate fixing hole 114a and the cutter holder fixing hole 1114 are different, the larger diameter hole is a tapered hole, used to place the screw head, so as to reduce the overall thickness of the circular cutter assembly 110, and the smaller diameter hole is provided with internal threads, used to connect the screw shank, which can save nuts and reduce the overall thickness of the circular cutter assembly 110.

[0043] Preferably, the cover plate fixing hole 114a is a large-diameter tapered hole with a thickness greater than or equal to the height of the screw head. After tightening, the shank of the selected tapered head screw does not protrude from the plane of the tool holder 111. This ensures that the overall thickness of the circular cutter assembly 110 is the same as the thickness of the assembled circular cutter blade 112, tool holder 111, and cover plate 114.

[0044] like Figure 6As shown, the blade holder 111 has two blade holder first steps 1112 and blade holder second steps 1113 with successively decreasing outer diameters in the thickness direction. The inner rings of the circular cutting blade 112 and the cover plate 114 are respectively sleeved on the outer ring end faces of the blade holder first step 1112 and blade holder second step 1113. The blade holder first step 1112 and blade holder second step 1113 can ensure the quality of the blade holder 111, enable rapid assembly, and reduce the overall thickness of the circular cutting blade assembly 110.

[0045] Specifically, the tool holder 111 includes a tool holder body 1111, a first step 1112, and a second step 1113, all of which are integrally formed and have the same inner diameter.

[0046] like Figure 1 , Figure 3 , Figure 4 As shown, it also includes a tension spring 113; the circular cutting blade 112 is disc-shaped; the tension spring 113 is tightly clamped at the circumferential angle end face between the circular cutting blade 112 and the cover plate 114. The tension spring 113 serves to clamp the circular cutting blade 112, while also fully utilizing the advantages of the disc-shaped circular cutting blade.

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, preferably, the overall thickness of the circular cutter assembly 110 is 5.0 mm to 5.3 mm. That is, with the conical hole for placing the conical screw head and the screw head not exposed, the thickness of the assembled circular cutter blade 112, blade holder 111, and cover plate 114 is 5.0 mm to 5.3 mm. Preferably, the thickness of the circular cutter blade 112 is 0.70 mm to 0.73 mm.

[0048] A first embodiment of an upper circular cutter assembly 100

[0049] like Figure 7 , Figure 8 As shown, the assembly includes several circular cutter assemblies 110, which are sleeved on the upper cutter shaft 140. The outer sides of the two outermost circular cutter assemblies 110 are fixed with first fixing sleeves 120 and second fixing sleeves 130, respectively. The thickness of each circular cutter assembly 110 is selected from 5.0mm to 8.0mm, with a possible thickness of 5.0mm. There are no spacers between any two circular cutter blades 112, allowing the ultra-thin characteristics of the circular cutter assembly 110 to meet the requirement of a slitting width of less than 20mm.

[0050] Specifically, the upper circular cutter assembly 100 further includes an upper cutter gear 150, a mounting plate 160, a swing arm 170, and an upper circular cutter shaft 180. The mounting plate 160 includes an upper mounting block 161, a mounting plate body 162, and a lower mounting block 163. The upper cutter gear 150 is mounted at one end of the upper cutter shaft 140, which is away from the circular cutter assembly 110. The upper cutter shaft 140 is parallel to the upper circular cutter shaft 180 and is detachably connected at both ends by two sets of mounting plates 160. The swing arm 170 is mounted on one end of the upper circular cutter shaft 180 outside one of the mounting plates 160.

[0051] A second embodiment of an upper circular cutter assembly 100

[0052] like Figure 9 , Figure 10 As shown, based on the first embodiment, several annular upper spacers 190 are added. These spacers 190 separate adjacent circular cutter assemblies 110, allowing adjustment of the spacing between the circular cutter assemblies 110 to meet different cutting width requirements. The annular upper spacers 190 can be selected with different thicknesses to meet wider cutting requirements of less than 20mm.

[0053] A first embodiment of a lower circular cutter assembly 200

[0054] like Figure 8 As shown, the lower circular cutter assembly 200 includes a plurality of lower circular cutter blades 210, which are equal in number, spacing, and position to those of the circular cutter assembly 110. It also includes a lower circular cutter assembly gear 220, two lower circular cutter fixing seats 230, and a fixing seat connecting rod 240. The lower circular cutter fixing seats 230 are respectively mounted on the lower circular cutter blades 210 and the fixing seat connecting rod 240 at both ends. The fixing seat connecting rod 240 is detachably connected to one of the lower circular cutter fixing seats 230.

[0055] A second embodiment of a lower circular cutter assembly 200

[0056] like Figure 9 , Figure 10 As shown, based on the first embodiment, several lower spacers 250 are added. These lower spacers 250 separate adjacent lower circular cutting blades 210, adjusting the spacing between them. This spacing corresponds to the spacing between the circular cutting blade assemblies 110 in the second embodiment of the upper circular cutting blade assembly 100, to meet different cutting width requirements. Specifically, the lower circular cutting blade assembly 200 also includes a lower blade assembly shaft 260 and a locking nut 270. The lower circular cutting blades 210 and lower spacers 250 are sleeved on the lower blade assembly shaft 260, and one end is fixed by the locking nut 270.

[0057] like Figure 11 , Figure 12 , Figure 13 , Figure 14 As shown, a small diaphragm slitting machine includes an upper circular cutter assembly 100, a lower circular cutter assembly 200, a straight cutter assembly 300, a slitting machine body 400, and a straight cutter roller assembly 500. The upper circular cutter assembly 100 can be mounted on the slitting machine body 400 and used alone. Alternatively, only the upper circular cutter assembly 100 and the lower circular cutter assembly 200 can be mounted on the slitting machine body 400 for use, fully utilizing the vertical shearing action of the upper and lower circular cutter assemblies 100 and 200 to improve slitting quality.

[0058] like Figure 11 , Figure 13 , Figure 14 As shown, specifically, the straight blade roller assembly 500 is disposed on the opposite side of the upper circular cutter assembly 100. Only the upper circular cutter assembly 100, the straight blade assembly 300, and the straight blade roller assembly 500 can be installed on the slitting machine body 400 for use. Alternatively, the upper circular cutter assembly 100, the lower circular cutter assembly 200, the straight blade assembly 300, and the straight blade roller assembly 500 can be installed on the slitting machine body 400 for use, allowing for easy switching between the upper circular cutter assembly 100 and the straight blade roller assembly 500. This ensures that one machine can simultaneously use or selectively switch between the upper circular cutter assembly 100 and the straight blade roller assembly 500, saving equipment costs.

[0059] Specifically, the straight blade assembly 300 includes a rocker arm spindle 310, a straight blade shaft 320, several washers 330, several straight cutting blades 340, a straight blade assembly rocker arm 350, and a drive rotating component 360. The washers 330 and straight cutting blades 340 are spaced apart and mounted on the straight blade shaft 320. The rocker arm spindle 310 is arranged parallel to the straight blade shaft 320, and its two ends are connected together by a straight blade assembly rocker arm 350. The drive rotating component 360 is mounted on one end of the rocker arm spindle 310.

[0060] The straight cutter roller assembly 500 includes a first slitting roller 510, a tensioning roller 520, a fourth slitting roller 550 that are sequentially wound around a diaphragm, and a second slitting roller 530 and a third slitting roller 540 that are disposed on both sides of the tensioning roller 520 for standby use.

[0061] The above description of the utility model is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A circular cutter assembly (110) comprising an annular circular cutter blade (112), characterized in that: It also includes a ring-shaped blade holder (111) and a ring-shaped cover plate (114); the circular cutting blade (112) is sandwiched between the blade holder (111) and the cover plate (114), and the blade holder (111) and the cover plate (114) are connected by screws or bolts; the outer diameter of the circular cutting blade (112) is much larger than the outer diameter of both the blade holder (111) and the cover plate (114) to prevent the blade of the circular cutting blade (112) from not being exposed and unable to cut; the thickness of the circular cutting blade (112) is 0.70mm to 1.00mm; the overall thickness is 5.0mm to 19mm.

2. The circular cutter assembly (110) according to claim 1, characterized in that: The cover plate (114) is provided with a cover plate fixing hole (114a); the cutter holder (111) is provided with a cutter holder fixing hole (1114); the cover plate fixing hole (114a) and the cutter holder fixing hole (1114) have different diameters, one large and one small. The larger diameter hole is a tapered hole, which is used to place the screw head to reduce the overall thickness of the circular cutter assembly (110). The smaller diameter hole is provided with an internal thread, which is used to connect the screw shank, which can save nuts and reduce the overall thickness of the circular cutter assembly (110).

3. The circular cutter assembly (110) according to claim 2, characterized in that: The blade holder (111) has two blade holder first steps (1112) and blade holder second steps (1113) with successively decreasing outer diameters in the thickness direction. The inner rings of the circular cutting blade (112) and the cover plate (114) are respectively sleeved on the outer ring end faces of the blade holder first step (1112) and blade holder second step (1113). The blade holder first step (1112) and blade holder second step (1113) can both ensure the quality of the blade holder (111) and reduce the overall thickness of the circular cutting blade assembly (110).

4. The circular cutter assembly (110) according to claim 3, characterized in that: It also includes a tension spring (113); the circular cutting blade (112) is disc-shaped; the tension spring (113) is tightly clamped at the circumferential angle end face between the circular cutting blade (112) and the cover plate (114).

5. The circular cutter assembly (110) according to claim 4, characterized in that: Its overall thickness is 5.0 mm to 5.3 mm and / or the thickness of the circular cutting blade (112) is 0.70 mm to 0.73 mm.

6. A circular cutter assembly (100), characterized in that: Includes a circular cutter assembly (110) as described in any one of claims 1 to 5, wherein there are a plurality of circular cutter assemblies (110), the plurality of circular cutter assemblies (110) are sleeved on the upper cutter shaft (140), and the outer sides of the two outermost circular cutter assemblies (110) are respectively fixed with a first fixing sleeve (120) and a second fixing sleeve (130).

7. The upper circular cutter assembly (100) according to claim 6, characterized in that: It also includes several annular upper spacers (190), which are disposed between two circular cutter assemblies (110) to adjust the spacing between the circular cutter assemblies (110) to meet the cutting requirements of different widths.

8. A small diaphragm slitting machine, characterized in that: Includes the upper circular cutter assembly (100) as described in claim 6 or 7.

9. The small diaphragm slitting machine according to claim 8, characterized in that: It also includes a lower circular cutter assembly (200), which includes a plurality of lower circular cutter blades (210) that are equal in number, spacing and position to those of the circular cutter assembly (110).

10. The small diaphragm slitting machine according to claim 9, characterized in that: It also includes a straight blade assembly (300), which is disposed on the opposite side of the upper circular cutter assembly (100) and can be switched between the upper circular cutter assembly (100) and the straight blade assembly (300) at any time.

Images