A pneumatic slitting knife fixing frame tool and a pneumatic slitting knife group

Abstract

The utility model relates to a kind of pneumatic slitting cutter fixing frame tool and pneumatic slitting cutter group, the pneumatic slitting cutter fixing frame tool is applicable to the cutter holder with T-shaped slot, it includes the spacer plate mechanism of being set on the cutter holder and being clamped between adjacent pneumatic slitting cutter, and the positioning block of being set to one of the pneumatic slitting cutter outside at end portion.The utility model not only improves the positioning accuracy of pneumatic slitting cutter, can be used for the slitting of the product of high strip width error requirement, it also avoids the damage problem caused by stress concentration of pneumatic slitting cutter holder, prolongs the service life of pneumatic slitting cutter, and realizes the quick assembly correction of pneumatic slitting cutter, improves pneumatic slitting cutter assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of pneumatic slitting knife technology, specifically relating to a pneumatic slitting knife fixing bracket and a pneumatic slitting knife assembly. Background Technology

[0002] Pneumatic slitting knife assemblies for multi-axis winding machines typically consist of several pneumatic slitting knives arranged side by side. The knives are secured solely by the tightening screws behind the knife holder. This approach presents several problems: 1) Poor stability and low precision: During operation, the knife holder may wobble, affecting the positioning accuracy of the cutter. For products with high requirements for strip width error, such as PTFE tape, where the error must be controlled within ±0.5 mm, this precision cannot be achieved. 2) Concentrated stress leading to easy damage: During operation, the wobble of the knife holder generates stress, causing deformation, wear, and bending of the tightening screws, reducing the service life of the slitting knife assembly. 3) Difficult and time-consuming installation and debugging. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing pneumatic slitting knife assemblies, which suffer from poor stability and low precision due to being fixed only by tightening screws, and to provide a pneumatic slitting knife fixing bracket and a pneumatic slitting knife assembly.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pneumatic slitting knife holder fixture is applicable to a knife holder with a T-slot. The pneumatic slitting knife holder fixture includes several spacer plate mechanisms disposed on the knife holder and clamped between adjacent pneumatic slitting knives, and a positioning block disposed on the outside of one of the pneumatic slitting knives located at the end.

[0005] As a further technical solution, the positioning block abuts against the corresponding pneumatic slitting blade located at the end.

[0006] As a further technical solution, the positioning block is provided with a groove that slides with the tool holder, and a tightening screw two restricts the sliding of the positioning block.

[0007] As a further technical solution, a threaded hole is provided on the side wall of the groove, and a tightening screw is provided in the threaded hole, which abuts against the side wall of the tool holder.

[0008] As a further technical solution, the partition plate mechanism includes a base disposed within the horizontal portion of the T-slot and adapted to the horizontal portion of the T-slot, and a partition plate inserted into the base.

[0009] As a further technical solution, the spacer plate is provided with several through holes.

[0010] As a further technical solution, a tool distance measuring block is also included; As a further technical solution, notches are provided on both the blade holder of the pneumatic slitting knife and the spacer plate; As a further technical solution, the tool distance measuring block includes two states; When the pneumatic slitting knife assembly is in use, the knife distance measuring block is idle (not installed on the pneumatic slitting knife fixing fixture). When the pneumatic slitting blades are assembled, the blade distance measuring block is positioned within the blade holder notch of the previous set of pneumatic slitting blades.

[0011] As a further technical solution, the blade distance measuring block is provided with a slot for inserting a pneumatic slitting blade circular blade; the width of the slot is equal to the thickness of the circular blade.

[0012] As a further technical solution, the slot divides the tool distance measuring block into a first block and a second block; the thickness of the first block is equal to the distance between adjacent circular blades.

[0013] As a further technical solution, a wristband is provided on the top of the tool distance measuring block.

[0014] A pneumatic slitting knife assembly includes a knife holder, a pneumatic slitting knife fixing bracket, a plurality of pneumatic slitting knives slidably disposed on the knife holder, and a tightening screw that restricts the sliding of the corresponding pneumatic slitting knives.

[0015] As a further technical solution, the bottom of the pneumatic slitting blade holder is provided with a sliding groove, which slides in cooperation with the blade base; As a further technical solution, a screw hole is provided on the side wall of the slide, and a tightening screw is provided in the screw hole and abuts against the tool holder.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model sets a positioning block and a spacer mechanism on the blade holder. During assembly, it can be achieved by simply following the sequence to achieve the initial positioning of the pneumatic slitting blade. Compared with traditional technology, 1) it does not require calibration after each pneumatic slitting blade is installed, saving the assembly time of the pneumatic slitting blade assembly; 2) during operation, the spacer mechanism limits the shaking amplitude of the pneumatic slitting blade holder. On the one hand, it improves its positioning accuracy and can be used for slitting products with high requirements for strip width error; on the other hand, it also reduces the stress concentration problem caused by blade holder shaking, reduces the probability of blade holder deformation, wear, and bending of the tightening screw, and extends the service life of the equipment.

[0017] 2. This utility model is equipped with a tool distance measuring block. The width of the first block of the tool distance measuring block is exactly equal to the distance between adjacent circular blades, which can quickly correct the position of the circular blades and save the calibration time of the circular blades during the assembly process.

[0018] In summary, this invention not only improves the positioning accuracy of the pneumatic slitting knife, making it suitable for slitting products with high requirements for strip width error, but also avoids damage to the pneumatic slitting knife holder caused by stress concentration, extending the service life of the pneumatic slitting knife. Furthermore, it enables rapid assembly and calibration of the pneumatic slitting knife, improving the assembly efficiency of the pneumatic slitting knife. Attached Figure Description

[0019] Figure 1 This is a perspective view of one embodiment of the pneumatic slitting blade assembly of the present invention (without the blade distance measuring block); Figure 2 This is a perspective view of another embodiment of the pneumatic slitting blade assembly of this utility model (without the blade distance measuring block). Figure 3 This is a perspective view of the partition mechanism in one embodiment of the present utility model; Figure 4 This is a perspective view of the tool distance measuring block in one embodiment of the present invention; Figure 5 This is a structural schematic diagram of the assembly process of the pneumatic slitting blade assembly in one embodiment of the present invention (with blade distance measuring block). In the diagram: 1. Blade holder, 2. Spacer mechanism, 3. Pneumatic slitting blade, 4. Positioning block, 5. T-slot, 6. Horizontal part, 7. Vertical part, 8. Base, 9. Spacer, 10. Through hole, 11. Blade distance measuring block, 12. Notch; 13. Blade holder, 14. Circular blade, 15. Slot; 16. First block, 17. Second block, 18. Hand ring, 19. Tightening screw one, 20. Air distribution port, 21. Tightening screw two. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are 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," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] 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.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings. Example 1

[0024] like Figure 1-2 The present invention provides an embodiment of a pneumatic slitting knife fixing fixture, which is applicable to a knife holder 1 with a T-slot. The pneumatic slitting knife fixing fixture includes several spacer plate mechanisms 2 disposed on the knife holder 1 and sandwiched between adjacent pneumatic slitting knives 3, and a positioning block 4 disposed on the outside of one of the pneumatic slitting knives 3 located at the end.

[0025] As an embodiment of the pneumatic slitting knife fixing bracket tool of this utility model, the positioning block 4 abuts against the corresponding pneumatic slitting knife 3 located at the end.

[0026] As an embodiment of the pneumatic slitting knife fixing bracket tool of this utility model, the positioning block 4 is provided with a groove that slides with the knife holder 1, and a tightening screw 21 restricts the sliding of the positioning block 4.

[0027] As an embodiment of the pneumatic slitting knife fixing bracket tool of this utility model, a threaded hole 2 is provided on the side wall of the groove, and a tightening screw 21 is provided in the threaded hole 2, and the tightening screw 21 abuts against the side wall of the knife holder 1.

[0028] As an embodiment of the pneumatic slitting knife fixing bracket tool of this utility model, a T-shaped groove 5 is provided on the top surface of the knife holder 1; As one embodiment of the pneumatic slitting knife fixing fixture of this utility model, the spacer mechanism 2 includes a base 8 disposed within the horizontal portion 6 of the T-slot 5 and adapted to the horizontal portion 6 of the T-slot 5, and a spacer 9 inserted into the base 8. This utility model sets up the T-slot 5 and places the base 8 of the spacer mechanism 2 within the horizontal portion 6 of the T-slot 5, thereby forming a strip-shaped hole in the vertical portion 7 of the T-slot 5. The base supports the spacer above the knife holder, facilitating its uprighting and reducing the swaying amplitude of the knife holder.

[0029] As an embodiment of the pneumatic slitting knife fixing fixture of this utility model, a gap is provided between the bases of adjacent spacer mechanisms to connect the strip holes.

[0030] As an embodiment of the pneumatic slitting knife fixing fixture of this utility model, the knife holder 1 is also provided with an air distribution port 20 that communicates with the vertical part 7 of the T-slot 5.

[0031] As an embodiment of the pneumatic slitting knife fixing bracket tool of this utility model, the spacer plate 9 is provided with a plurality of through holes 10.

[0032] As an embodiment of the pneumatic slitting knife fixing fixture of this utility model, it also includes a knife distance measuring block 11.

[0033] As an embodiment of the pneumatic slitting knife fixing bracket tool of the present utility model, notches 12 are provided on both the knife holder 13 of the pneumatic slitting knife 3 and the spacer plate 9; As an embodiment of the pneumatic slitting knife fixing fixture of this utility model, the knife distance measuring block 11 includes two states; When the pneumatic slitting knife assembly is in use, the knife distance measuring block 11 is idle and not set on the pneumatic slitting knife fixing bracket fixture. When the pneumatic slitting knife is assembled, the blade distance measuring block 11 is placed in the notch 12 of the blade holder 13 of the newly assembled pneumatic slitting knife 3.

[0034] As an embodiment of the pneumatic slitting knife fixing bracket tool of this utility model, the knife distance measuring block 11 is provided with a slot 15 for inserting the pneumatic slitting knife 3 circular blade 14; the width of the slot 15 is equal to the thickness of the circular blade 14.

[0035] As an embodiment of the pneumatic slitting knife fixing fixture of this utility model, the slot 15 divides the knife distance measuring block 11 into a first block 16 and a second block 17; the thickness of the first block 16 is equal to the distance between adjacent circular blades 14.

[0036] As an embodiment of the pneumatic slitting knife fixing fixture of this utility model, a wristband 18 is provided on the top of the knife distance measuring block 11. Example 2

[0037] Figure 1 This invention illustrates an embodiment of a pneumatic slitting knife assembly, comprising a knife holder 1, a pneumatic slitting knife fixing bracket, a plurality of pneumatic slitting knives 3 slidably disposed on the knife holder, and a tightening screw 19 that restricts the sliding of the corresponding pneumatic slitting knife 3.

[0038] The pneumatic slitting knife fixing fixture includes several spacer mechanisms 2 disposed on the knife holder 1 and sandwiched between adjacent pneumatic slitting knives 3, and a positioning block 4 disposed on the outside of one of the pneumatic slitting knives 3 located at the end.

[0039] As one embodiment of the pneumatic slitting knife assembly of this utility model, the pneumatic slitting knife 3 is also connected to an air source via a pipe. In this utility model, the pneumatic slitting knife 3 is a commercially available component and is existing technology; its specific structure will not be described in detail here.

[0040] As an embodiment of the pneumatic slitting knife assembly of the present invention, the bottom of the knife holder 13 of the pneumatic slitting knife 3 is provided with a sliding groove, and the sliding groove is slidably engaged with the knife base 1.

[0041] As an embodiment of the pneumatic slitting knife assembly of this utility model, a screw hole is provided on the side wall of the slide groove, and the tightening screw 19 is disposed in the screw hole and abuts against the knife holder 1.

[0042] As an embodiment of the pneumatic slitting knife assembly of this utility model, the positioning block 4 abuts against the corresponding pneumatic slitting knife 3 located at the end.

[0043] As an embodiment of the pneumatic slitting knife assembly of this utility model, the positioning block 4 is provided with a groove that slides with the knife holder 1, and a tightening screw 21 restricts the sliding of the positioning block 4.

[0044] As an embodiment of the pneumatic slitting knife assembly of this utility model, a threaded hole 2 is provided on the side wall of the groove, and a tightening screw 21 is provided in the threaded hole 2, and the tightening screw 21 abuts against the side wall of the knife holder 1.

[0045] As an embodiment of the pneumatic slitting knife assembly of this utility model, a T-shaped groove 5 is provided on the top surface of the knife holder 1; As an embodiment of the pneumatic slitting knife assembly of this utility model, the spacer mechanism 2 includes a base 8 disposed in the horizontal part 6 of the T-slot 5 and adapted to the horizontal part 6 of the T-slot 5, and a spacer 9 inserted on the base 8.

[0046] As an embodiment of the pneumatic slitting knife assembly of this utility model, the knife holder 1 is also provided with an air distribution port 20 that communicates with the vertical part 7 of the T-shaped groove 5.

[0047] This utility model discloses an assembly method for a pneumatic slitting knife assembly and a usage method for a pneumatic slitting knife fixing bracket tool, including: First, align the groove of the positioning block 4 with the blade holder 1 and insert it into the blade holder 1. Then slide it to the designated position and fix it with the tightening screw 21. Next, insert the first set of pneumatic slitting blades 3 into the base 8 and slide it until it abuts against the positioning block 4. Then install the tightening screw 19 to fix it. Align the slot 15 of the ranging and positioning block 4 with the circular blade 14 of the first set of pneumatic slitting blades 3 and insert it. Set the ranging and positioning block 4 at the notch 12 of the blade holder 13 of the first set of pneumatic slitting blades 3. Insert the base 8 of the first set of partition plate mechanism 2 into the horizontal part 6 of the T-slot 5 of the knife holder 1, and slide it to abut against the first set of pneumatic slitting blades 3. Then install the second set of pneumatic slitting blades 3, and make the blade holder 13 of the second set of pneumatic slitting blades 3 abut against the partition plate 9 of the partition plate mechanism 2. The circular blade 14 of the second set of pneumatic slitting blades 3 abut against the ranging positioning block 4. Then fix it with the tightening screw 19. After the second set of pneumatic slitting blades is assembled, the ranging and positioning block 4 is removed from the first set of pneumatic slitting blades 3 and installed at the notch 12 of the blade holder 13 of the second set of pneumatic slitting blades 3. Assemble the partition plate mechanism 2 and the pneumatic slitting blade 3 according to the above method until the last set of pneumatic slitting blades is assembled. Then remove the ranging and positioning block 4 to obtain the pneumatic slitting blade assembly of this utility model.

[0048] Compared with existing technologies, this invention has the following advantages: 1. It eliminates the need for calibration of each pneumatic slitting blade 3, saving assembly time for the pneumatic slitting blade assembly; 2. During operation, the spacer mechanism 2 limits the swaying amplitude of the pneumatic slitting blade 3's blade holder 13, which improves its positioning accuracy and can be used for slitting products with high requirements for strip width error, such as expanded raw material strips; on the other hand, it reduces stress concentration caused by blade holder 13 swaying, reducing the probability of blade holder 13 deformation, wear, and bending of tightening screws, thus extending the service life of the equipment; the pneumatic slitting blade 3 is equipped with a blade distance measuring block 11, the width of the first block 16 of which is exactly equal to the distance between adjacent circular blades 14, thereby enabling rapid correction of the position of the circular blades 14 and saving calibration time for the circular blades 14 during assembly. The assembly time of a pneumatic slitting blade assembly using this invention is reduced from more than 45 minutes in traditional technologies to less than 20 minutes, greatly improving assembly efficiency.

[0049] The above-described embodiments are merely preferred embodiments of this utility model, and not an exhaustive list of all feasible implementations of this utility model. Any obvious modifications made by those skilled in the art without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model.

Claims

1. A pneumatic slitting knife fixing fixture, characterized in that, Suitable for a knife holder (1) with a T-slot (5), the pneumatic slitting knife fixing fixture includes several spacer mechanisms (2) disposed on the knife holder (1) and clamped between adjacent pneumatic slitting knives (3), and a positioning block (4) disposed on the outside of one of the pneumatic slitting knives (3) located at the end.

2. The pneumatic slitting knife fixing fixture according to claim 1, characterized in that, The positioning block (4) abuts against the corresponding pneumatic slitting blade (3) located at the end.

3. The pneumatic slitting knife fixing fixture according to claim 1, characterized in that, The partition plate mechanism (2) includes a base (8) disposed in the horizontal part (6) of the T-slot (5) and adapted to the horizontal part (6) of the T-slot (5), and a partition plate (9) inserted on the base (8).

4. The pneumatic slitting knife fixing fixture according to claim 3, characterized in that, The spacer plate (9) is provided with several through holes (10).

5. The pneumatic slitting knife fixing fixture according to claim 1, characterized in that, It also includes a tool distance measuring block (11); The pneumatic slitting knife (3) has notches (12) on its blade holder (13) and on the spacer plate (9). When the pneumatic slitting knife is assembled, the blade distance measuring block (11) is set in the notch (12) of the pneumatic slitting knife (3).

6. The pneumatic slitting knife fixing fixture according to claim 5, characterized in that, The blade distance measuring block (11) is provided with a slot (15) for inserting the pneumatic slitting blade (3) circular blade (14); the width of the slot (15) is equal to the thickness of the circular blade (14).

7. The pneumatic slitting knife fixing fixture according to claim 6, characterized in that, The slot (15) divides the tool distance measuring block (11) into a first block (16) and a second block (17); the thickness of the first block (16) is equal to the distance between adjacent circular blades (14).

8. The pneumatic slitting knife fixing fixture according to claim 6, characterized in that, A wristband (18) is provided on the top of the tool distance measuring block (11).

9. A pneumatic slitting blade assembly, characterized in that, It includes a blade holder (1), a pneumatic slitting blade holder fixture as described in any one of claims 1-4, a plurality of pneumatic slitting blades (3) slidably disposed on the blade holder, and a tightening screw (19) for limiting the sliding of the corresponding pneumatic slitting blades (3).

10. A pneumatic slitting blade assembly according to claim 9, characterized in that, The bottom of the blade holder (13) of the pneumatic slitting blade (3) is provided with a sliding groove, which is slidably engaged with the blade holder (1); A screw hole is provided on the side wall of the slide groove, and the tightening screw (19) is provided in the screw hole and abuts against the tool holder (1).

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