Round blade of combined slitting machine

Abstract

A combined slitting machine circular blade comprises a combined cutter body, a first cutter holder and a second cutter holder, the combined cutter body comprises at least two equally-divided fan-shaped split blades, and the first cutter holder is arranged on the inner side of a central through hole of the combined cutter body in a sleeving mode and serves as a core bearing body; the second tool apron is sleeved on the outer surface of the first tool apron, the split blade is provided with a blade fixing hole and a friction layer and is fixed with the second tool apron through a bolt, and a counterweight groove is arranged on the outer edge of the second tool apron and can be matched with a counterweight block to meet different dynamic balance requirements. An annular groove and a buffer ring are arranged in the first tool apron, the influence of vibration on the cutting quality is reduced, meanwhile, the radial position of the split blade is allowed to be finely adjusted, and the cutting precision is ensured. The wear-resistant layer and the high-temperature-resistant layer are arranged on the surface of the blade to form composite protection, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of round blade, specifically for a combined slitting machine round blade. BACKGROUND

[0002] The slitting machine, also known as a longitudinal shearing machine or a longitudinal cutting machine, is a machine device specially used for cutting continuous materials into strips and is widely used in the textile, garment, packaging, building, printing and other industries.

[0003] The slitting machine blade is an important component of the slitting machine and is mainly used for slitting processing of materials such as metal, film, paper, cigarette, leather and printing.

[0004] Under the conditions of medium and low speed and high wear, the damage degree of the blade is different, but the existing slitting machine blade is generally integrated, and the entire blade needs to be replaced after the wear of the blade in some areas, which is high in cost. SUMMARY

[0005] In order to solve the above-mentioned problem that the damage degree of the blade is different under the conditions of medium and low speed and high wear, the existing slitting machine blade is generally integrated, and the entire blade needs to be replaced after the wear of the blade in some areas, which is high in cost, the utility model provides a combined slitting machine round blade to solve the above-mentioned problem.

[0006] A combined slitting machine round blade comprises a combined blade body, a through hole is arranged at the center of the combined blade body, the combined blade body comprises at least two split blades, the split blades equally divide the combined blade body, the combined blade body is in the shape of a ring, the split blades are in the shape of a sector, and a plurality of split blades combine to form a ring-shaped combined blade body.

[0007] Beneficial effects: local replacement is realized by 2-4 detachable split blades, the entire blade is avoided from being scrapped, the cost of consumables is reduced, and the combined slitting machine round blade is particularly suitable for scenes of local blade edge wear.

[0008] A first blade seat is sleeved on the inside of the through hole at the center of the combined blade body.

[0009] A second blade seat is sleeved on the outer surface of the first blade seat, and the first blade seat and the second blade seat are fixedly arranged.

[0010] Beneficial effects: a double-blade-seat nested structure is arranged, the first blade seat serves as a core bearing body, the rigidity connection with the main shaft is ensured through the blade seat central hole, the split blade is fixedly arranged on the outer surface of the second blade seat, a double-layer stress dispersion structure is formed, and the radial deformation during high-speed rotation is reduced.

[0011] Further, a blade fixing hole is arranged on the surface of the split blade away from the blade edge, and a friction layer is arranged at the end of the split blade away from the blade edge.

[0012] Beneficial effect: the friction layer at the tail end of the blade reduces micro-displacement during high-speed rotation by increasing the contact friction with the seat, improving the accuracy of the blade during cutting.

[0013] Further, the second seat surface is uniformly provided with blade fixing holes in the circumferential direction, and the outer edge of the second seat surface is provided with a counterweight groove matched with a counterweight block of different weight.

[0014] Beneficial effect: the counterweight groove is added to the outer edge of the second seat, matched with a detachable counterweight block, to adapt to the dynamic balance requirements of different split blade combinations.

[0015] Further, the first seat includes a first cylindrical body, a second cylindrical body is fixedly connected to the upper surface of the first cylindrical body, a ring-shaped groove is formed at the connection between the second cylindrical body and the first cylindrical body, and a buffer ring is installed in the ring-shaped groove.

[0016] Beneficial effect: the buffer ring reduces vibration, and the buffer ring in the ring-shaped groove can absorb the impact load of the blade and inhibit the transmission of high-frequency vibration to the main shaft.

[0017] Further, a blade fixing hole is formed in the circumferential direction of the upper surface of the first cylindrical body, and a bolt is matched with the blade fixing hole.

[0018] Further, the circumferential positioning of the split blade and the circumferentially distributed fixing hole of the second seat is realized by a bolt.

[0019] Further, the seat fixing hole of the first seat allows the radial position of the split blade to be finely adjusted by a jackscrew, ensuring that the roundness error after combination is ≤0.02mm.

[0020] Beneficial effect: each split blade can be slightly displaced in the blade fixing hole after being heated, avoiding the concentricity deviation caused by thermal expansion of the whole blade.

[0021] Further, a seat center hole is provided through the center of the first seat.

[0022] Further, a seat fixing hole is formed in the circumferential side surface of the first seat, and the seat fixing hole penetrates the circumferential side surface of the first seat to the surface of the seat center hole.

[0023] Further, a wear-resistant layer is provided on the surface of the split blade, and the wear-resistant layer is one of aluminum oxide, titanium carbide, and titanium nitride.

[0024] Beneficial effect: the wear-resistant layer on the surface of the blade, aluminum oxide or titanium carbide, forms a composite protection with the high-temperature-resistant layer, aluminum oxide or silicon nitride, prolonging the life of the cutting edge.

[0025] Further, the split blade surface is provided with a high-temperature-resistant layer, which is aluminum oxide or silicon nitride.

[0026] Beneficial effects: the surface silicon nitride / aluminum oxide layer reduces heat transfer to the knife holder, protecting the mechanical properties of the knife holder material.

[0027] Further, different thicknesses of combined blades can be installed between the first knife holder and the second knife holder, and when different thicknesses of combined blades are installed, different thicknesses of buffer rings are installed in the annular groove to ensure close contact between the knife body and the knife holder.

[0028] Further, when the split blade needs to be replaced, the knife holder does not need to be removed from the rubber roller, only the corresponding bolts of the split blade to be replaced are removed, and the split blade to be replaced is removed and replaced, without disassembling the knife holder and the rubber roller, achieving quick replacement.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] 1. Local replacement reduces consumable cost:

[0031] By setting 2-4 detachable split blades, when a blade edge is worn, only the part of the blade needs to be replaced, instead of the whole blade, thereby significantly reducing the consumable cost. This setting is particularly suitable for local edge wear scenarios, improving resource utilization efficiency.

[0032] 2. Double-knife-holder nested structure enhances stability:

[0033] The nested structure of the first knife holder and the second knife holder is adopted, the first knife holder serves as the core bearing body, and is rigidly connected with the main shaft through the knife holder center hole to ensure stability. The second knife holder covers and fixes the split blade, forming a double-layer stress dispersion structure, effectively reducing radial deformation during high-speed rotation, and improving cutting precision and stability.

[0034] 3. Friction layer and counterweight groove improve cutting precision and adaptability:

[0035] The friction layer at the tail end of the split blade increases the contact friction force with the knife holder, reduces the micro-displacement during high-speed rotation, and further improves the cutting precision. At the same time, the counterweight groove at the outer edge of the second knife holder 3 can be matched with counterweight blocks of different weights to adapt to the dynamic balance requirements of different split blade combinations, ensuring smooth operation during cutting.

[0036] 4. Buffer ring vibration reduction and fine adjustment function ensure cutting quality:

[0037] The buffer ring mounted in the annular groove of the first tool seat can absorb the impact load of the blade, inhibit the transmission of high-frequency vibration to the main shaft, and effectively reduce the influence of vibration on cutting quality. In addition, the tool seat fixing hole of the first tool seat allows the radial position of the split blade to be finely adjusted by the jack screw, ensuring that the roundness error after combination is controlled within a very small range (≤0.02mm), further improving the cutting precision.

[0038] 5. Quick replacement and composite protection prolong service life:

[0039] When the split blade needs to be replaced, it is not necessary to disassemble the tool seat and the rubber roller, but only to remove the corresponding bolt to quickly replace it, greatly saving the replacement time and maintenance cost. At the same time, the wear-resistant layer (aluminum oxide, titanium carbide, titanium nitride, etc.) and the high-temperature-resistant layer (aluminum oxide or silicon nitride) on the surface of the blade form a composite protection, effectively prolonging the life of the cutting edge and reducing the transmission of heat to the tool seat, protecting the mechanical properties of the tool seat material. This setting not only improves work efficiency, but also prolongs the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0041] Figure 1 It is a schematic view of a combined type slitting machine round blade and tool seat installation structure;

[0042] Figure 2 It is a side view of a combined type slitting machine round blade structure;

[0043] Figure 3 It is a front view of a combined type slitting machine round blade structure;

[0044] Figure 4 It is a schematic view of a split blade structure;

[0045] Figure 5 It is a front view of a first tool seat;

[0046] Figure 6 It is a side view of a first tool seat;

[0047] Figure 7 It is Figure 3 A-A sectional view of the middle round blade when the middle round blade is a thick blade;

[0048] Figure 8 It is Figure 3 A-A sectional view of the middle round blade when the middle round blade is a thin blade;

[0049] In the drawings:

[0050] 1. First tool holder; 101. Tool holder fixing hole; 102. Annular groove; 103. First columnar body; 104. Second columnar body;

[0051] 2. Combined blade body; 201. Separate blades; 202. Friction layer;

[0052] 3. Second tool holder;

[0053] 4. Blade fixing hole;

[0054] 5. Center hole of the tool holder;

[0055] 6. Bolts;

[0056] 7. Buffer ring;

[0057] 8. Counterweight groove. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0059] The application principle of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0060] Example 1

[0061] like Figures 1-6 As shown: A combined slitting machine circular blade includes a combined blade body 2, the combined blade body 2 having a through hole at its center, the combined blade body 2 including at least two separate blades 201, the separate blades 201 equally dividing the combined blade body 2, the combined blade body 2 being annular, the separate blades 201 being fan-shaped, and multiple separate blades 201 being combined to form annular combined blade body 2;

[0062] like Figures 3-4 As shown, it consists of three separate blades 201, which are combined to form a circular composite blade body 2.

[0063] Beneficial effects: Partial replacement can be achieved by using 2-4 detachable blades, avoiding the scrapping of the entire blade and reducing consumable costs. It is especially suitable for scenarios with localized blade wear.

[0064] First tool holder 1, the first tool holder 1 is sleeved inside the central through hole of the combined tool body 2;

[0065] The second tool holder 3 is sleeved on the outer surface of the first tool holder 1, and the first tool holder 1 and the second tool holder 3 are fixedly disposed together.

[0066] Beneficial effect: Set double knife seat nested structure, the first knife seat 1 as the core carrier, through the knife seat center hole 5 to ensure the rigid connection with the main shaft; The second knife seat 3 is fixed with the split blade to form a double-layer stress dispersion structure, which reduces the radial deformation during high-speed rotation.

[0067] The surface of the split blade 201 away from the cutting edge is provided with a blade fixing hole 4, and the end of the split blade 201 away from the cutting edge is provided with a friction layer 202;

[0068] Beneficial effect: The friction layer 202 at the tail end of the blade increases the contact friction with the knife seat, reduces the micro displacement during high-speed rotation, and improves the accuracy of the blade during cutting.

[0069] The second knife seat 3 is uniformly provided with a blade fixing hole 4 along the circumferential direction, and the second knife seat 3 is provided with a counterweight groove 8 at the outer edge, and the counterweight groove 8 is matched with counterweight blocks of different weights.

[0070] Beneficial effect: The counterweight groove is added at the outer edge of the second knife seat 3, and the detachable counterweight block is matched to adapt to the dynamic balance requirement of different split blade combinations.

[0071] The first knife seat 1 comprises a first columnar body 103, and the upper surface of the first columnar body 103 is fixedly connected with a second columnar body 104, and the connection between the second columnar body 104 and the first columnar body 103 is provided with an annular groove 102, and the annular groove 102 is installed with a buffer ring 7.

[0072] Beneficial effect: The buffer ring reduces vibration, and the buffer ring 7 in the annular groove 102 can absorb the impact load of the blade and inhibit the transmission of high-frequency vibration to the main shaft. The annular groove 102 is provided to facilitate the positioning of the split blade 201.

[0073] The upper surface of the first columnar body 103 is provided with a blade fixing hole 4 in the circumferential direction, and the blade fixing hole 4 is matched with a bolt 6,

[0074] The circumferential positioning of the split blade and the circumferentially distributed fixing holes 4 of the second knife seat 3 is realized through the bolt 6;

[0075] The knife seat fixing hole 101 of the first knife seat 1 allows the split blade to be finely adjusted in the radial position through the jack, and ensures that the roundness error after combination is ≤0.02mm.

[0076] Beneficial effect: Each split blade 201 can be slightly displaced in the blade fixing hole after being heated, so as to avoid the concentricity deviation caused by the thermal expansion of the whole blade.

[0077] The first knife seat 1 is provided with a knife seat center hole 5 penetrating through the center.

[0078] The first tool holder 1 has a tool holder fixing hole 101 on its circumferential side surface, and the tool holder fixing hole 101 extends through the circumferential side surface of the first tool holder 1 to the surface of the tool holder center hole 5.

[0079] The surface of the split blade 201 is provided with a wear-resistant layer, which is one of aluminum oxide, titanium carbide, and titanium nitride.

[0080] Beneficial effects: The wear-resistant layer on the blade surface, made of alumina or titanium carbide, together with the high-temperature resistant layer, made of alumina or silicon nitride, forms a composite protection that extends the life of the cutting edge.

[0081] The surface of the split blade 201 is provided with a high-temperature resistant layer, which is aluminum oxide or silicon nitride.

[0082] Beneficial effects: The surface silicon nitride / alumina layer reduces heat transfer to the tool holder and protects the mechanical properties of the tool holder material.

[0083] Example 2

[0084] like Figures 7-8 As shown, based on Embodiment 1, a combination blade 2 of different thicknesses can be installed between the first blade holder 1 and the second blade holder 3. When installing the combination blade 2 of different thicknesses, a buffer ring 7 of different thicknesses is installed in the annular groove 102 to ensure close contact between the blade body and the blade holder.

[0085] Example 3

[0086] Based on Example 1, when the split blade 201 needs to be replaced, it is not necessary to remove the blade holder from the rubber roller. Simply remove the bolt 6 corresponding to the split blade 201 that needs to be replaced, and then remove and replace the split blade 201 that needs to be replaced. There is no need to disassemble the blade holder and the rubber roller, thus achieving quick replacement.

[0087] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0088] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A combination slitter wheel, characterized by: Including the combination cutter body (2), the combination cutter body (2) is provided with a through hole in the center, and the combination cutter body (2) includes at least two split blades (201), and the split blades (201) divide the combination cutter body (2) into two equal parts. The first cutter seat (1) is sleeved on the inside of the through hole in the center of the combination cutter body (2). The second cutter seat (3) is sleeved on the outer surface of the first cutter seat (1), and the first cutter seat (1) and the second cutter seat (3) are fixedly arranged.

2. A circular knife blade for a combined slitting machine according to claim 1, characterized in that: The surface of the split blade (201) is provided with a blade fixing hole (4) away from the cutting edge, and the end of the split blade (201) away from the cutting edge is provided with a friction layer (202).

3. A circular knife blade for a combined slitting machine according to claim 1, characterized in that: The surface of the second cutter seat (3) is uniformly provided with a blade fixing hole (4) in the circumferential direction, and the outer edge of the surface of the second cutter seat (3) is provided with a counterweight groove (8).

4. The combination slitting machine round knife of claim 1 wherein: The first cutter seat (1) includes a first cylindrical body (103), and the upper surface of the first cylindrical body (103) is fixedly connected with a second cylindrical body (104), and the connecting part of the second cylindrical body (104) and the first cylindrical body (103) is provided with an annular groove (102), and the annular groove (102) is provided with a buffer ring (7).

5. A circular knife blade for a combined slitting machine according to claim 4, characterized in that: The upper surface of the first cylindrical body (103) is provided with a blade fixing hole (4) in the circumferential direction, and the blade fixing hole (4) is matched with a bolt (6).

6. A circular knife blade for a combined slitting machine according to claim 5, characterized in that: The first cutter seat (1) is provided with a cutter center hole (5) penetrating through the center.

7. A circular knife blade for a combined slitting machine according to claim 6, characterized in that: The circumferential surface of the first cutter seat (1) is provided with a cutter fixing hole (101), and the cutter fixing hole (101) penetrates through the circumferential surface of the first cutter seat (1) to the surface of the cutter center hole (5).

8. The combination slitting machine round knife of claim 1 wherein: The surface of the split blade (201) is provided with a wear-resistant layer, and the wear-resistant layer is one of aluminum oxide, titanium carbide and titanium nitride.

9. A combined slitting machine round blade according to claim 8, characterized in that: The surface of the split blade (201) is provided with a high-temperature-resistant layer, and the high-temperature-resistant layer is aluminum oxide or silicon nitride.

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