A cutter

Abstract

This invention provides a shredder, comprising a main body, which is an elongated structure with a first mounting groove and a second mounting groove in the middle; a shredding plate, which is installed in the first mounting groove, and the shredding plate is provided with a plurality of double-cone cutters arranged in a linear array at equal intervals along the bottom edge of the shredding plate; and a flat blade, which is installed in the second mounting groove. The upper surface of the shredding plate is lower than the cutting edge of the flat blade, and a material discharge gap with a preset spacing is formed between the shredding plate and the flat blade. The cutting edge of the flat blade cooperates with the end of the double-cone cutters to cut the food that slides along the double-cone cutters to the flat blade, and the cut food shreds are discharged through the material discharge gap. This invention can significantly reduce cutting resistance, improve shredding efficiency and product integrity. At the same time, the one-piece molded plastic structure not only reduces manufacturing costs, but also avoids rust and residue residue, and is easy to clean.

Description

Technical Field

[0001] This invention relates to the field of kitchen utensil technology, and more specifically to a shredder. Background Technology

[0002] Existing shredders typically use an array of metal blades for shredding. However, metal blades often require significant force when cutting harder foods (such as potatoes and carrots), and they are prone to rusting. Furthermore, traditional blades and substrates usually require secondary assembly, resulting in high manufacturing costs, and food residue easily accumulates in the blade crevices, making cleaning difficult. During the cutting process, the lack of a smooth, progressive guiding structure makes food prone to breakage, leading to incomplete shredding. Therefore, there is an urgent need for a shredder with low cutting resistance, low cost, easy cleaning, and good shredding performance. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a shredder that can significantly reduce cutting resistance, improve shredding efficiency and product integrity. At the same time, the one-piece molded plastic structure not only reduces manufacturing costs, but also avoids rust and residue residue, and is easy to clean.

[0004] To achieve the above objectives, one aspect of the present invention provides a shredder, comprising: The main body is a long strip-shaped structure with a first mounting groove and a second mounting groove in the middle; A slicing plate is installed in the first mounting groove. The slicing plate is provided with several double-cone cutters, which are arranged in a linear array at equal intervals along the bottom edge of the slicing plate. The flat blade is installed in the second mounting slot. The upper surface of the slicing plate is lower than the cutting edge of the flat blade, and a material drop gap with a preset distance is formed between the slicing plate and the flat blade. The cutting edge of the flat blade cooperates with the end of the double conical cutter to cut the food that slides along the double conical cutter to the flat blade, and the cut food shreds are discharged through the material drop gap.

[0005] According to one embodiment of the present invention, the double conical cutter is made of plastic and is integrally injection molded with the slicing plate.

[0006] According to one embodiment of the present invention, the double-cone cutter has a spindle-shaped structure and includes a first conical segment and a second conical segment arranged symmetrically. The axial lengths of the first conical segment and the second conical segment are equal, and the intersection of the two segments forms the maximum cross-section of the double-cone cutter. The ends of the first conical segment and the second conical segment both form sharp tip surfaces.

[0007] According to one embodiment of the present invention, the double-conical cutter is fixedly connected to the slicing plate at its maximum cross-section. The first and second conical sections at both ends of the double-conical cutter extend outward from the maximum cross-section, and the tip surfaces do not contact other components.

[0008] According to one embodiment of the present invention, the total axial length of the double-cone cutter is 3-8 mm, the thickness at the maximum cross-section is 0.7-1 mm, and the thickness of the tip surface at the end of the double-cone cutter is 0.1 mm-0.3 mm.

[0009] According to one embodiment of the present invention, the tip face of the double-cone cutter has an acute angle structure, and the included angle between the two side walls of the double-cone cutter along the axial direction is 150°-175°.

[0010] According to one embodiment of the present invention, the flat blade is made of plastic and the cutting edge of the flat blade is a long, straight blade, the extension direction of which is consistent with the linear arrangement direction of the double conical cutter.

[0011] According to one embodiment of the present invention, the spacing between two adjacent double conical cutters is 1-8 mm to limit the shredding width.

[0012] According to one embodiment of the present invention, the height of the double conical cutter is 1-10 mm.

[0013] According to one embodiment of the present invention, it further includes: Guide rails are installed on both sides of the main body; The hand guard has slide rails on both sides that cooperate with the guide rail. The hand guard is connected to the guide rail via the slide rails. The inside of the hand guard is hollow to hold the food to be sliced. The top of the hand guard has an openable lid.

[0014] The present invention has the following beneficial technical effects: The shredder provided in the embodiments of the present invention, by setting a main body, which is a long strip structure with a first mounting groove and a second mounting groove in the middle; a shredding plate, which is installed in the first mounting groove, and the shredding plate is provided with a plurality of double conical cutters, which are arranged in a linear array at equal intervals along the bottom edge of the shredding plate; and a flat blade, which is installed in the second mounting groove, with the upper surface of the shredding plate lower than the cutting edge of the flat blade, and a material discharge gap with a preset distance is formed between the shredding plate and the flat blade, wherein the cutting edge of the flat blade cooperates with the end of the double conical cutter to cut the food that slides along the double conical cutter to the flat blade, and the cut food shreds are discharged through the material discharge gap, can significantly reduce cutting resistance, improve shredding efficiency and product integrity. At the same time, the one-piece molded plastic structure not only reduces manufacturing costs, but also avoids rust and residue residue, and is easy to clean. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a shredder according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a shredder according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a double-cone cutter according to an embodiment of the present invention; Figure 4 This is a schematic top view of two adjacent double-cone cutters according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the front view of two adjacent double-cone cutters according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a hand protector according to an embodiment of the present invention. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to specific examples and the accompanying drawings.

[0018] Based on the above objectives, a first aspect of the embodiments of the present invention provides an embodiment of a shredder. Figure 1 The diagram shown is of a shredder.

[0019] like Figure 1 As shown, the shredder may include: Main body 1, which is a long strip structure with a first mounting groove and a second mounting groove in the middle; A slicing plate 2 is detachably installed in the first mounting groove. The slicing plate 2 is provided with a number of double conical cutters 3. The number of double conical cutters 3 are arranged in a linear array with equal spacing along the bottom edge of the slicing plate 2. A flat blade 4 is installed in a second mounting groove. The upper surface of the slicing plate 2 is lower than the cutting edge of the flat blade 4, and a pre-set material discharge gap 5 is formed between the slicing plate 2 and the flat blade 4. The cutting edge of the flat blade 4 engages with the end of the double-cone cutter 3 to cut the food that slides along the double-cone cutter 3 to the flat blade 4, and the cut food shreds are discharged through the material discharge gap 5. In some embodiments, the distance between adjacent double-cone cutters is 1-8 mm, preferably 3.6 mm, which directly determines the width of the shredded food. In some embodiments, the double-cone cutter is made of plastic, including but not limited to food-grade ABS and POM, and is integrally molded with the slicing plate using an injection mold. In some embodiments, the double-cone cutter has a strictly symmetrical spindle-shaped structure, including a first conical segment and a second conical segment, both with equal axial lengths and a total axial length of 3-8 mm, preferably 5.5 mm. The intersection of the two segments forms the maximum cross-section of the double-cone cutter, with a thickness of 0.7-1 mm, preferably 0.85 mm. Both the first and second conical sections have sharp, thin tips, ranging from 0.1mm to 0.3mm, preferably 0.2mm. These tips are used for cutting food. The included angle θ between the two side walls is 150° to 175°, preferably 166.1°. This structure ensures that both ends of the double-conical cutter are extremely sharp, while the overall structure is flat and spindle-shaped, resulting in excellent stability under stress. By installing the slicing plate and the flat blade in two independent mounting slots in the main body, the entire structure is modular, easy to disassemble and clean. Food slides on the double-conical cutter, avoiding direct cutting and reducing thrust. By setting the position difference between the upper surface of the slicing plate and the cutting edge of the flat blade, and utilizing the gap between them to form a material drop gap, it is ensured that the food can slide down naturally under gravity after being completely cut. This not only results in high slicing efficiency but also effectively prevents blockage caused by debris accumulation in the slots.

[0020] This invention can significantly reduce cutting resistance, improve shredding efficiency and product integrity. At the same time, the one-piece molded plastic structure not only reduces manufacturing costs, but also avoids rust and residue residue, and is easy to clean.

[0021] In a preferred embodiment of the present invention, the double-cone cutter is made of plastic and is integrally injection molded with the slicing plate. Plastic materials include, but are not limited to, food-grade polyoxymethylene (POM), polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), and polycarbonate (PC). The plastic material replaces the traditional metal blade, fundamentally solving the problem of metal blades easily rusting and meeting food safety requirements. Through the integral injection molding process, no secondary welding or assembly is required, greatly reducing manufacturing costs. At the same time, the one-piece molded structure has a smooth, seamless surface, eliminating hard-to-clean areas where dirt and grime can accumulate, making cleaning extremely convenient.

[0022] In a preferred embodiment of the present invention, such as Figure 2 and 3 As shown, the double-cone cutter 3 has a spindle-shaped structure. It includes a symmetrically arranged first conical segment 6 and a second conical segment 7. The axial lengths of the first conical segment 6 and the second conical segment 7 are equal, and their intersection forms the maximum cross-section 8 of the double-cone cutter. Both the first conical segment 6 and the second conical segment 7 have sharp pointed ends 9. The symmetrical and equal-length double-cone structure ensures that both ends of the double-cone cutter have identical cutting capabilities, increasing the versatility of the component. The maximum cross-section is located in the middle, giving the cutter a spindle-shaped geometry with sharp ends and a thick middle section, resulting in extremely high bending strength. The extremely thin, sharp pointed ends allow the cutter to generate extremely high pressure with a very small contact area upon initial contact with the food, easily piercing the food's surface and greatly reducing the pushing force required by the operator.

[0023] In a preferred embodiment of the present invention, reference is made to... Figure 2 and 3 The double-conical cutter 3 is fixedly connected to the slicing plate 2 through its maximum cross-section 8. The first conical segment 6 and the second conical segment 7 at both ends of the double-conical cutter 3 extend outward from the maximum cross-section 8, and the tip surface 9 does not contact other parts. Fixing the cutter to the slicing plate through the thickest maximum cross-section forms the strongest anchor point, so that the root stress of the cutter is minimized when subjected to horizontal thrust and lateral shearing force, fundamentally preventing the risk of the cutter falling off and breaking. At the same time, the design of the tips being completely suspended and not in contact with any parts ensures that the cutting path of the tips is unobstructed, which not only ensures that the food can be easily pierced, but also prevents the tips from interfering with other parts and becoming dull.

[0024] In a preferred embodiment of the present invention, such as Figure 4 As shown, the total axial length L of the double-cone cutter 3 is 3-8mm, preferably 5.5mm, the thickness D2 at the maximum cross-section is 0.7-1mm, preferably 0.85mm, and the thickness D1 of the tip surface of the double-cone cutter 3 is 0.1mm-0.3mm, preferably 0.2mm. The ratio of total axial length to thickness (approximately 5.5:0.85) is precisely optimized to ensure that the cutter is long enough to generate sufficient guiding stroke, while also ensuring that its thickness is moderate and not easily deformed or cracked when cutting harder ingredients for a long time; while the thickness of the tip surface is strictly controlled within an extremely thin range of 0.1-0.3mm (preferably 0.2mm) to ensure that it has sufficient cutting sharpness, while retaining the feasibility of not damaging the mold during mass production in the injection molding process.

[0025] In a preferred embodiment of the present invention, such as Figure 4As shown, the tip of the double-cone cutter 3 has an acute-angled structure, and the included angle θ between the two side walls along the axial direction is 150°-175°, preferably 166.1°. Although the tip is acute, the included angle (outer angle) between the two side walls is designed as a very large obtuse angle (almost flat) of 150°-175°. This extremely high flatness makes the force process of the food being pushed outward along the wall after being pierced by the tip very smooth, and the resistance increases gradually, avoiding the instantaneous explosive force that would crush the food, greatly improving the integrity and aesthetics of the food after shredding.

[0026] In a preferred embodiment of the present invention, the flat blade is made of plastic, and its cutting edge is a long, straight blade extending in the same direction as the linear arrangement of the double-cone cutters. The long, straight blade can simultaneously act on all the food shreds on the entire row of double-cone cutters, achieving a one-time, batch, clean cut. Furthermore, because the two are arranged in the same direction, the shearing force on the food shreds during sliding is ensured to be completely vertical and uniform, avoiding burrs and debris caused by uneven force. In some embodiments, the flat blade is made of food-grade rigid plastic, including but not limited to food-grade polyoxymethylene (POM), polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS), and polycarbonate (PC), matching the material of the shredder and double-cone cutters. This all-plastic cutting system design fundamentally solves the problems of rust and residue from traditional metal knives or shredders. The plastic cutting edge, after careful chamfering, is sufficient to handle the shearing force required for everyday kitchen shredding, while significantly reducing manufacturing costs, giving the product extremely high cost-effectiveness and market competitiveness. The all-plastic structure significantly reduces costs and simplifies the manufacturing process. The flat blade is made of plastic, which, together with the main body, slicing plate, and double-cone cutting blade, constitutes an all-plastic shredder. This means that the entire core cutting component can be molded using the same material and a single injection mold or simple mold combination, eliminating the need for additional metal inlays, secondary overmolding, or riveting processes. This greatly simplifies the production process, significantly reduces mold opening and manufacturing costs, and is suitable for mass production. The plastic material completely avoids the problems of rust, corrosion, and oxidation that metal blades are prone to, preventing food safety hazards caused by rust. Furthermore, the smooth, flat surface of the long, straight blade, without the microscopic burrs and gaps of metal blades, makes it extremely difficult for food residue to adhere after slicing. Combined with the one-piece molding of the double-cone cutting blade, the entire cutting area can be thoroughly washed with water, greatly improving the hygiene of kitchen utensils. A perfect combination of hardness and toughness: Although plastic is not as hard as metal, its long, straight blade design gives it excellent overall structural rigidity. When cutting soft or medium-hard ingredients (such as potatoes, radishes, and cucumbers), the straight blade distributes force evenly, and the flexibility of the plastic itself avoids the risk of brittle breakage or chipping like with metal. Furthermore, being a non-metallic material, it operates with less noise and a smoother feel. The elongated straight blade, combined with a linear double-cone cutting array, allows the double-cone blades, positioned at different points, to simultaneously cut the food cleanly at the root as it slides to the end. Because both are made of plastic, they have similar coefficients of friction and moduli of elasticity. At the moment of cutting, the plastic blade does not generate the strong impact force of hard metal; instead, it relies on the slight elasticity and smooth edges of the plastic to achieve a gentle and thorough "cut," effectively preventing the food fibers from being crushed and ensuring the integrity of the cut.

[0027] In a preferred embodiment of the present invention, such as Figure 4As shown, the distance D3 between two adjacent double-cone cutters 3 is 1-8mm, preferably 3.6mm. The distance between the cutters directly determines the width of the shreds. The 1-8mm distance range covers the common needs of everyday household shredders for both coarse shreds (such as coarse potato shreds) and fine shreds (such as fine radish shreds); and the evenly spaced arrangement ensures that the width of each shred is absolutely uniform, resulting in high product consistency.

[0028] In a preferred embodiment of the present invention, such as Figure 5 As shown, the height of the double-conical cutter 3 is 1-10mm, preferably 6.5mm. This height not only determines the depth and stroke of the cutter into the food, but also indirectly ensures that the food can be completely passed through the cutter without being stuck. The 1-10mm height provides ample cutting space, allowing for the cutting of large pieces of food without excessively increasing the overall size of the machine.

[0029] In a preferred embodiment of the present invention, such as Figure 6 As shown, it also includes: Guide rails are installed on both sides of the main body 1; The hand guard 10 has slide rails 11 on both sides that cooperate with the guide rail. The hand guard 10 is connected to the guide rail via the slide rails 11. The inside of the hand guard 10 is hollow to hold the food to be sliced, and the top of the hand guard 10 has an openable cover 12. This is the safety protection system of the shredder. By holding the food inside the hollow hand guard and opening the top cover for easy loading, and cooperating with the guide rails on both sides of the main body to achieve precise up and down sliding, it completely isolates the possibility of fingers coming into contact with the sharp double-cone blade and flat blade, greatly improving the safety of product use. At the same time, the hand guard and the rails also provide precise linear propulsion for the food, ensuring a smoother and less strenuous shredding process.

[0030] During operation, the food to be cut (such as potatoes) is placed into the internal cavity of the hand guard. The lid is closed or used to compress the food, and the hand guard slides downwards along guide rails on both sides of the main body. Under the pushing force, the food first contacts and easily pierces the tip of the double-cone cutter, then is cut into strips along the gradually widening spindle-shaped surface. When the food strips slide to the end of the double-cone cutter, they directly impact and slide past the edge of the flat blade, being completely severed. The severed food strips naturally fall into the feed gap and are discharged. The design of the guide rails and hand guard also prevents direct contact between the hand and the cutter, ensuring a high level of safety.

[0031] This invention can significantly reduce cutting resistance, improve shredding efficiency and product integrity. At the same time, the one-piece molded plastic structure not only reduces manufacturing costs, but also avoids rust and residue residue, and is easy to clean.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0034] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. The embodiment numbers disclosed above are for descriptive purposes only and do not represent any superiority or inferiority of the embodiments.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A shredder, characterized in that, include: The main body is a long strip-shaped structure with a first mounting groove and a second mounting groove in the middle; A slicing plate is installed in the first mounting groove. The slicing plate is provided with several double-cone cutters, which are arranged in a linear array at equal intervals along the bottom edge of the slicing plate. The flat blade is installed in the second mounting slot. The upper surface of the slicing plate is lower than the cutting edge of the flat blade, and a material drop gap with a preset distance is formed between the slicing plate and the flat blade. The cutting edge of the flat blade cooperates with the end of the double conical cutter to cut the food that slides along the double conical cutter to the flat blade, and the cut food shreds are discharged through the material drop gap.

2. The shredder according to claim 1, characterized in that, The double-cone cutter is made of plastic and is injection molded as a single piece with the slicing plate.

3. The shredder according to claim 1, characterized in that, The double-cone cutter has a spindle-shaped structure. The double-cone cutter includes a first conical segment and a second conical segment arranged symmetrically. The axial lengths of the first conical segment and the second conical segment are equal. The intersection of the two segments forms the maximum cross-section of the double-cone cutter. The ends of the first conical segment and the second conical segment both form sharp tip surfaces.

4. The shredder according to claim 3, characterized in that, The double-cone cutter is fixedly connected to the slicing plate at its maximum cross-section. The first and second conical sections at both ends of the double-cone cutter extend outward from the maximum cross-section, and their pointed ends do not contact other components.

5. The shredder according to claim 1, characterized in that, The total axial length of the double-cone cutter is 3-8mm, the thickness at the maximum cross-section is 0.7-1mm, and the thickness of the tip surface at the end of the double-cone cutter is 0.1mm-0.3mm.

6. The shredder according to claim 1, characterized in that, The tip of the double-cone cutter has an acute angle structure, and the included angle between the two side walls of the double-cone cutter along the axial direction is 150°-175°.

7. The shredder according to claim 1, characterized in that, The flat blade is made of plastic, and its cutting edge is a long, straight strip, extending in the same direction as the linear arrangement of the double-cone cutter.

8. The shredder according to claim 1, characterized in that, The spacing between two adjacent double-cone cutters is 1-8mm to limit the shredding width.

9. The shredder according to claim 1, characterized in that, The height of the double-cone cutter is 1-10mm.

10. The shredder according to claim 1, characterized in that, Also includes: Guide rails are installed on both sides of the main body; The hand guard has slide rails on both sides that cooperate with the guide rail. The hand guard is connected to the guide rail via the slide rails. The inside of the hand guard is hollow to hold the food to be sliced. The top of the hand guard has an openable lid.

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