An anti-winding single-axis cutter roller

Abstract

The present invention provides an anti-winding single-shaft cutter roller, which relates to the field of cutter rollers. The anti-winding single-shaft cutter roller includes a roller shaft and a plurality of moving tool holders. The moving tool holders protrude from the outer side surface of the roller shaft and are arranged at intervals along the axial direction. Moving tools are installed on the moving tool holders. The interval between two axially adjacent moving tools forms a biting space for matching with a fixed tool; a convex structure corresponding to the biting space is provided on the roller shaft. The edge of the convex structure is a cutting edge protruding from the outer side surface of the roller shaft, and the radial distance between the cutting edge and the axis of the roller shaft is equal everywhere. The cutting edge of the convex structure cuts the material wound in the biting space, and the radial distance between the cutting edge and the axis of the roller shaft is equal everywhere, ensuring the effective shearing cooperation between the cutting edge and the fixed tool, avoiding possible interference between the cutting edge and the fixed tool, improving the cutting and crushing efficiency of the cutter roller, and ensuring the reliability of the unpacking process of the cutter roller.

Description

Technical Field

[0001] The present invention relates to the technical field of knife rollers, and particularly to an anti-winding single-shaft knife roller. Background Art

[0002] The unpacking machine is a common device in industrial production. Materials are usually packed in packaging bags made of materials such as ton bags and films, and the packaging bags of the materials are disassembled and broken by the knife roller of the unpacking machine.

[0003] For example, the Chinese utility model patent with the authorization publication number CN210303974U and the authorization publication date of April 14, 2020 discloses a solid knife roller and a crusher with a solid knife roller, and specifically discloses that the solid knife roller includes a knife shaft, a plurality of knife seats and blades. The plurality of knife seats are all sleeved on the knife shaft and fixedly connected to the knife shaft; the plurality of knife seats are sequentially distributed along the axial direction of the knife shaft; the end faces of two adjacent knife seats are in contact; the knife seat includes a seat body and a plurality of mounting bodies; the seat body is sleeved on the knife shaft and fixed to the knife shaft; the plurality of mounting bodies are fixedly connected to the outer periphery of the seat body and are circumferentially spaced apart in an array around the axis of the knife shaft; the mounting bodies adjacent to each other in the axial direction of the knife shaft on each seat body are connected to form a mounting surface, and the blade is fixedly connected to the mounting surface. The knife seats on the solid knife roller are sequentially distributed along the axial direction of the knife shaft, and the end faces of the knife seats are in contact with each other to achieve seamless connection, which can reduce the space for the feeding film to wind when breaking the film.

[0004] However, the existing single-shaft knife roller also adopts a structural form in which a plurality of knife seats are axially spaced on the roller shaft. An engaging space matching the fixed knife is formed between two axially adjacent knife seats. Due to the existence of the engaging space, packages such as films are wound on the roller shaft and cannot be cut off, resulting in low cutting and crushing efficiency of the knife roller. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide an anti-winding single-shaft knife roller to solve the problem that the existing single-shaft knife roller has an engaging space, so that packages such as films are wound on the roller shaft and cannot be cut off, resulting in low cutting and crushing efficiency of the knife roller.

[0006] The technical solution of the anti-winding single-shaft knife roller of the present invention is as follows:

[0007] The anti-winding single-shaft knife roller includes a roller shaft and a plurality of moving knife seats. The moving knife seats protrude from the outer side surface of the roller shaft and are arranged at intervals along the axial direction. Moving knives are installed on the moving knife seats, and the interval between two axially adjacent moving knives forms an engaging space for matching with a fixed knife;

[0008] A convex structure corresponding to the engaging space is provided on the roller shaft. The edge of the convex structure is a cutting edge protruding from the outer side surface of the roller shaft, and the radial distance between the cutting edge and the axis of the roller shaft is equal everywhere.

[0009] Beneficial effects: A convex structure is designed on the roller shaft. The cutting edge of the convex structure cuts the material wound in the engaging space, and the radial distance between the cutting edge and the axis of the roller shaft is equal everywhere, ensuring an effective shearing fit between the cutting edge and the fixed knife. In addition, interference between the cutting edge and the fixed knife is avoided, and it is easy to transform and add a convex structure on the basis of the original single-axis knife roller, ensuring that packages such as films can be cut in time when wound around the roller shaft, improving the cutting and crushing efficiency of the knife roller, and ensuring the reliability of the unpacking process of the knife roller.

[0010] Further, the outer side surface of the roller shaft is a cylindrical surface, and the convex structure is a strip-shaped convex platform that fits the cylindrical surface of the roller shaft.

[0011] Further, a plurality of the movable knife seats are arranged at intervals in a spiral shape on the cylindrical surface of the roller shaft, and the strip-shaped convex platform has an arc-shaped contour that matches the cylindrical surface of the roller shaft.

[0012] Further, the thickness of the strip-shaped convex platform is any dimension between 1 mm and 10 mm.

[0013] Further, a scraping blade is provided on the end surface of the roller shaft, and the scraping blade protrudes from the end surface of the roller shaft.

[0014] Further, the scraping blade is a triangular scraping blade with a sharp angle facing the cylindrical surface of the roller shaft.

[0015] Further, an end strip-shaped convex platform is also provided on the cylindrical surface of the roller shaft near the end, and the end strip-shaped convex platform connects the scraping blade and the movable knife seat at the end.

[0016] Further, the movable knife seat has an assembly part for installing the movable knife, and the side of the movable knife facing away from the assembly part constitutes a cutting surface; a load adjustment structure is detachably installed on the roller shaft, and the load adjustment structure is embedded at the included angle position between the outer side surface of the roller shaft and the cutting surface of the movable knife, and the load adjustment structure has a material guiding inclined surface that intersects the cutting surface obliquely.

[0017] Further, a positioning block is also provided on the outer side surface of the roller shaft near the movable knife seat, the load adjustment structure is an adjustment block that is detachably installed on the positioning block, and the side of the positioning block facing away from the roller shaft is flush with the material guiding inclined surface of the adjustment block.

[0018] Further, the outer side surface of the roller shaft is a cylindrical surface, the positioning block is in the shape of a wedge, the positioning block has an arc-shaped fitting portion that matches the cylindrical surface of the roller shaft, and the positioning block is further provided with a positioning surface facing away from the arc-shaped fitting portion; the positioning surface forms a positioning angle with the cutting surface of the moving knife, the adjusting block is fitted in the positioning angle, and a connecting bolt is provided between the adjusting block and the positioning block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a three-dimensional schematic view of the anti-winding single-shaft cutter roller in Specific Embodiment 1 of the present invention;

[0020] Figure 2 is Figure 1 the front view schematic of the anti-winding single-shaft cutter roller in

[0021] Figure 3 is Figure 1 the right view schematic of the anti-winding single-shaft cutter roller in

[0022] In the figure: 1, roller shaft; 2, strip-shaped convex platform; 20, cutting edge; 3, scraping blade; 4, end strip-shaped convex platform; 5, moving knife seat; 6, moving knife; 60, cutting surface; 7, adjusting block; 70, material guiding inclined surface; 8, positioning block; 80, positioning surface. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0024] Specific Embodiment 1 of the anti-winding single-shaft cutter roller of the present invention, as Figures 1 to 3 shown, the anti-winding single-shaft cutter roller includes a roller shaft 1 and a plurality of moving knife seats 5. The moving knife seats 5 protrude from the outer side surface of the roller shaft 1 and are arranged at intervals along the axial direction. A moving knife 6 is installed on the moving knife seat 5. The interval between two adjacent moving knives 6 in the axial direction forms a biting space for matching with a fixed knife; a convex structure corresponding to the biting space is provided on the roller shaft 1. The edge of the convex structure is a cutting edge 20 protruding from the outer side surface of the roller shaft 1, and the radial distance between the cutting edge 20 and the axis of the roller shaft 1 is equal everywhere.

[0025] A convex structure is designed on the roller shaft 1. The cutting edge 20 of the convex structure plays a cutting role on the material wound in the biting space, and the radial distance between the cutting edge 20 and the axis of the roller shaft 1 is equal everywhere, ensuring the effective shearing cooperation between the cutting edge 20 and the fixed knife. In addition, the interference between the cutting edge 20 and the fixed knife is avoided, and it is easy to transform and add a convex structure on the basis of the original single-shaft cutter roller, ensuring that when packages such as films are wound around the roller shaft, they can be cut in time, improving the cutting and crushing efficiency of the cutter roller, and ensuring the reliability of the unpacking treatment of the cutter roller.

[0026] The outer side of the roller shaft 1 is a cylindrical surface, and the raised structure is a strip-shaped boss 2 that fits the cylindrical surface of the roller shaft 1. In addition, a plurality of movable knife seats 5 are arranged on the cylindrical surface of the roller shaft 1 in a spiral shape, and the strip-shaped boss 2 has an arc profile that matches the cylindrical surface of the roller shaft 1. The roller shaft 1 is designed to be cylindrical, and a plurality of movable knife seats 5 are arranged in a spiral shape and the arc profile of the strip-shaped boss 2 matches the cylindrical surface, which ensures that the strip-shaped boss 2 and the fixed knife perform shearing motion successively when the knife roller rotates, so that the cutting time of the cutting edges 20 at different parts is staggered, thereby improving the cutting force of the cutting edges 20 on the packaging wrapped there.

[0027] The thickness of the strip-shaped boss 2 is any size between 1 mm and 10 mm. Specifically, the thickness of the strip-shaped boss 2 is 3 mm, which ensures that the cut edge 20 of the strip-shaped boss 2 has a reliable cutting effect. In addition, a scraper 3 is provided on the end face of the roller 1, and the scraper 3 protrudes from the end face of the roller 1. Moreover, the scraper 3 is a triangular scraper with a sharp corner facing the cylindrical surface of the roller 1. The scraper 3 is designed at the end of the roller 1, and the scraper 3 is used to remove the material accumulated at the end of the roller 1, thereby improving the smoothness of the cutting movement of the knife roller.

[0028] In order to completely cut the package wound on the roller 1, an end strip boss 4 is also provided near the end on the cylindrical surface of the roller 1, and the end strip boss 4 connects the scraper blade 3 and the movable knife seat 5 located at the end. It should be noted that the strip boss 2 located in the bite space and the end strip boss 4 are made of NM360 wear-resistant steel plate, which has good wear resistance and cutting effect, and the strip boss 2 and the end strip boss 4 are welded and fixed on the cylindrical surface of the roller 1.

[0029] In this embodiment, the movable knife seat 5 has an assembly portion for installing the movable knife 6, and the side of the movable knife 6 facing away from the assembly portion constitutes a cutting surface 60; a load adjustment structure is detachably mounted on the roller shaft 1, and the load adjustment structure is embedded in the angle position between the outer side surface of the roller shaft 1 and the cutting surface 60 of the movable knife 6, and the load adjustment structure has a material guide inclined surface 70 that is inclined and intersects with the cutting surface 60.

[0030] A load adjustment structure is embedded in the angle position between the outer side surface of the roller shaft 1 and the cutting surface 60 of the movable knife 6, and the cutting surface 60 is partially blocked by the material guide slope 70 of the load adjustment structure; when the knife roller rotates, the cutting surface 60 of the movable knife 6 forms a shearing effect on the material, and since the cutting surface 60 is also designed with a material guide slope 70, part of the material located at the root position of the movable knife 6 moves along the material guide slope 70 and is gradually pushed to the end position of the movable knife 6, and is cut and crushed at the end position of the cutting surface 60 of the movable knife 6.

[0031] Due to the material guiding effect of the load regulating structure, an outward pushing effect is formed on the part of the material close to the roller shaft 1, avoiding the cutting and crushing of the material at the root of the moving knife 6. Instead, the material is concentrated at the end position of the moving knife 6 as much as possible for processing. The rotational linear velocity of the end of the moving knife 6 is greater, and the power and cutting force for cutting and crushing are stronger. At the same time, the amount of material bitten by the knife roller is reduced, the load of the knife roller per unit time is lowered, and the material crushing and processing effect is effectively improved. In addition, the load regulating structure and the roller shaft 1 are detachably installed. According to the actual situation of the material, the load regulating structure can be removed or installed to adjust the cutting part of the moving knife 6, so as to adapt to the crushing requirements of different materials, and the versatility of the entire knife roller is better.

[0032] Wherein, a positioning block 8 close to the moving knife seat 5 is further provided on the outer side surface of the roller shaft 1. The load regulating structure is an adjusting block 7 detachably installed on the positioning block 8. The side surface of the positioning block 8 facing away from the roller shaft 1 is flush with the material guiding inclined surface 70 of the adjusting block 8. Designing the material guiding inclined surface 70 of the adjusting block 4 to be flush with the side surface of the positioning block 8 extends the extension distance of the material guiding inclined surface 70, enabling a smooth transition between the material guiding inclined surface 70 and the outer side surface of the roller shaft 1, which is beneficial for the part of the material close to the roller shaft 1 to be more smoothly displaced to the end position of the moving knife 6.

[0033] In this embodiment, the outer side surface of the roller shaft 1 is a cylindrical surface, and the shape of the positioning block 8 is a wedge shape. The positioning block 8 has an arc-shaped fitting portion that matches the cylindrical surface of the roller shaft 1. The arc-shaped fitting portion of the positioning block 8 is welded and fixed on the cylindrical surface of the roller shaft 1. The positioning block 8 further has a positioning surface 80 facing away from the arc-shaped fitting portion. The positioning surface 80 forms a positioning angle with the cutting surface 60 of the moving knife 6. The adjusting block 7 is embedded in the positioning angle, and a connecting bolt is provided between the adjusting block 7 and the positioning block 8. The arc-shaped fitting portion of the positioning block 8 is welded and fixed on the roller shaft 1, and the adjusting block 7 is fixed on the positioning block 8 through the connecting bolt, avoiding direct modification by drilling holes in the roller shaft 1 and ensuring the structural integrity of the roller shaft 1; the adjusting block 7 is embedded in the positioning angle, improving the reliability of the installation of the adjusting block 7. Only by screwing the connecting bolt can the disassembly and installation operation of the adjusting block 7 be realized, simplifying the disassembly and installation steps of the adjusting block 7.

[0034] In other specific embodiments of the anti-winding single-axis knife roller of the present invention, in order to meet different usage requirements, the convex structure is not limited to the strip-shaped convex platform in the specific embodiment 1. The convex structure can also be designed as a strip-shaped convex rib, and the edge of the strip-shaped convex rib protrudes from the outer side surface of the roller shaft to form a cutting edge, which can also play a role in cutting the material wound in the biting space.

[0035] For other specific embodiments of the anti-winding single-axis cutter roller of the present invention, in order to meet different usage requirements, multiple moving tool holders are not limited to being arranged at intervals in a spiral shape on the cylindrical surface of the roller shaft. Instead, multiple moving tool holders can also be arranged in a C-shape, S-shape, or linear shape on the cylindrical surface of the roller shaft. Correspondingly, the arrangement form of the strip-shaped convex platform is the same as that of the moving tool holder, that is, the strip-shaped convex platform in the biting space is arranged in a C-shape, S-shape, or linear shape. In addition, in order to simplify the structure of the cutter roller, the adjusting block and positioning block provided on the roller shaft can be omitted, which can also meet the usage requirements of cutting the winding material.

[0036] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An anti-winding single-shaft cutter roller, characterized in that, It includes a roller shaft and a plurality of moving tool holders. The moving tool holders protrude from the outer side surface of the roller shaft and are arranged at intervals along the axial direction. A moving tool is installed on the moving tool holder, and the interval between two axially adjacent moving tools forms a biting space for matching with a fixed tool. The roller shaft is provided with a convex structure corresponding to the biting space. The edge of the convex structure is a cutting edge protruding from the outer side surface of the roller shaft, and the radial distance between the cutting edge and the axis of the roller shaft is equal everywhere. The outer side surface of the roller shaft is a cylindrical surface, and the convex structure is a strip-shaped convex platform fitting on the cylindrical surface of the roller shaft. The plurality of moving tool holders are arranged at intervals in a spiral shape on the cylindrical surface of the roller shaft, and the strip-shaped convex platform has an arc-shaped contour matching the cylindrical surface of the roller shaft. A scraping blade is provided on the end surface of the roller shaft, and the scraping blade protrudes from the end surface of the roller shaft. The scraping blade is a triangular scraping blade with a sharp angle facing the cylindrical surface of the roller shaft. The thickness of the strip-shaped convex platform is any size between 1 mm and 10 mm. An end strip-shaped convex platform is also provided on the cylindrical surface of the roller shaft near the end. The end strip-shaped convex platform connects the scraping blade and the moving tool holder at the end. The moving tool holder has an assembly part for installing the moving tool. The side of the moving tool facing away from the assembly part forms a cutting surface. A load adjustment structure is detachably installed on the roller shaft. The load adjustment structure is embedded at the included angle position between the outer side surface of the roller shaft and the cutting surface of the moving tool, and the load adjustment structure has a material guiding inclined surface intersecting the cutting surface obliquely. A positioning block is also provided on the outer side surface of the roller shaft near the moving tool holder. The load adjustment structure is an adjustment block detachably installed on the positioning block, and the side of the positioning block facing away from the roller shaft is flush with the material guiding inclined surface of the adjustment block.

2. The anti-winding single-shaft cutter roller according to claim 1, characterized in that, The outer side surface of the roller shaft is a cylindrical surface. The shape of the positioning block is a wedge shape. The positioning block has an arc-shaped fitting part matching the cylindrical surface of the roller shaft. The positioning block is also provided with a positioning surface facing away from the arc-shaped fitting part. The positioning surface forms a positioning included angle with the cutting surface of the moving tool. The adjustment block is embedded in the positioning included angle, and a connecting bolt is provided between the adjustment block and the positioning block.

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