A multi-specification circular paper cutter

Abstract

This utility model relates to a multi-specification circular paper cutter, comprising a cutter body, which consists of a base, a transparent turntable, and a cutting head assembly. The cutting head assembly is mounted on the transparent turntable, which is mounted on the base. The base presses firmly onto the paper. By rotating the transparent turntable, the cutting head assembly performs the circular cutting operation on the paper. This multi-specification circular paper cutter features a simple and reasonable structure, ease of use, and stable operation.

Description

Technical Field

[0001] This utility model relates to the field of paper cutter technology, specifically to a multi-specification circular paper cutter. Background Technology

[0002] A circular paper cutter is a tool specifically designed to cut paper or other similar materials into circles. Circular paper cutters typically feature precise size control and alignment functions, ensuring that the cut circle perfectly matches the template. This tool is particularly suitable for making badges, emblems, paper craft decorations, and other applications requiring circular paper pieces. However, in testing, existing circular paper cutters on the market either cannot cut circles with a diameter less than 100mm, or they are unstable when cutting small circles, with the center point easily shifting, making it difficult to cut perfectly round circles. Furthermore, the cutting blade is a consumable part, the product lacks a corresponding storage box, making the blade easy to lose, and the blade is often exposed without any protective device, posing a risk of accidental cuts.

[0003] To address this issue, a multi-specification circular paper cutter was designed to overcome the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a multi-specification circular paper cutter with a simple and reasonable structure that is practical and convenient.

[0005] This utility model is achieved through the following technical solution: a multi-specification circular paper cutter, which includes a paper cutter body, the body being composed of a base, a transparent turntable, and a paper cutting head assembly. The paper cutting head assembly is mounted on the transparent turntable, the transparent turntable is mounted on the base, and the base is fixed on the paper. By rotating the transparent turntable, the paper cutting head assembly is driven to perform the circular cutting operation of the paper.

[0006] Preferably, the base is hollow inside, and a guide groove for placing steel balls is opened on the bottom side. The steel balls are embedded or placed on the guide groove. A slot is opened on the upper side of the guide groove. The transparent turntable protrudes in the middle, and a guide edge with a height smaller than the transparent turntable is opened around it. A groove is opened below the guide edge, and the groove is directly opposite the steel ball. A turntable cover is installed above the guide edge. The turntable cover has a buckle that is engaged in the slot to fix it and prevent the transparent turntable from falling out.

[0007] Preferably, the transparent turntable has a recessed working area with a long, narrow cutout inside. A paper cutter head assembly is installed inside the cutout. Dimensions are engraved on both sides of the cutout on the working area. By installing the paper cutter head assembly at different dimensional positions, various sizes of circles can be cut. In addition to the working area, the transparent turntable also has a handheld part.

[0008] Preferably, the paper cutter head assembly consists of a sliding positioning body, a telescopic blade assembly, an indicator plate, and a sliding positioning base. The sliding positioning base consists of a bottom fixing plate and a connecting column. The bottom fixing plate is installed below the elongated hollow section. The connecting column in the middle passes through the hollow section and is screwed onto the upper sliding positioning body and fixed to the hollow section in the working area. An indicator plate is installed between the sliding positioning body and the sliding positioning base. The indicator plate is used to determine the size and position of both sides of the hollow section. The telescopic blade assembly is installed inside the sliding positioning body.

[0009] Preferably, the telescopic blade assembly consists of a rotating cap, a spring, a blade, and a fixing member. The fixing member is inserted into the sliding positioning base and is limited by the limiting vertical grooves on both sides. A limiting top is provided at the top of the sliding positioning body. The limiting top and the limiting vertical grooves restrict the fixing member within the sliding positioning base to prevent it from falling out. The blade has a handle and a blade head. The blade head is inserted into the fixing member. A spring is sleeved on the handle. The handle and the sleeved spring are inserted into the connector arranged below the rotating cap. The connector has an external thread, which is screwed into the internal thread inside the fixing member. The extension and retraction of the blade head are achieved by forward and reverse screwing.

[0010] Preferably, the handheld part is a finger hole or a handle.

[0011] As a preferred embodiment, a storage box is provided at the bottom of the transparent turntable. The storage box has multiple slots, in which the entire blade is inserted for easy replacement. The bottom of the storage box is fixed with a storage box cover by screws.

[0012] Preferably, a silicone pad is provided on the bottom surface of the base.

[0013] Preferably, the guide groove has multiple limiting ribs, which divide the guide groove into multiple equally spaced grooves, and each groove contains at least two steel balls.

[0014] The advantages of this utility model compared to the prior art are as follows:

[0015] 1) The multi-specification circular paper cutter designed in this utility model places the paper pressing point of the traditional circular cutter at the center point on the outermost ring, and uses a silicone soft pad to press the paper firmly, which increases the contact area and range. When cutting small circles, the paper is not easy to move. With the steel balls evenly distributed on the outer ring, the paper cutting rotation is smooth, and it is easy to cut a round circle, thus improving the overall applicability.

[0016] 2) This utility model features a snap-on blade structure on the bottom surface of the base, which, together with the bottom cover of the blade storage box, can store more blades. When a blade is worn out, the bottom cover of the storage box can be opened to take out the blade for replacement, eliminating the need to search for blades elsewhere and improving overall work efficiency and practicality.

[0017] 3) The paper cutter head assembly in this utility model can raise or lower the blade through a threaded rotation structure. When in use, rotate it in the direction indicated on the blade rotating cap so that the blade is facing down and can be used to cut paper. After use, rotate it in the opposite direction so that the blade can rise and be protected so that it is not exposed and does not cause the risk of cutting the skin, thereby improving the overall safety. Attached Figure Description

[0018] Figure 1 This is an exploded structural diagram of the entire utility model;

[0019] Figure 2 yes Figure 1 Exploded view of the paper cutter head assembly;

[0020] Figure 3 This is a schematic diagram of the overall structure of this utility model after installation (front view);

[0021] Figure 4 This is a schematic diagram of the overall structure of this utility model after installation (back side). Detailed Implementation

[0022] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" 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 are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1-2 As shown, a multi-specification circular paper cutter includes a paper cutter body, which consists of a base 1, a transparent turntable 2, and a paper cutting head assembly 3. The paper cutting head assembly 3 is mounted on the transparent turntable 2, and the transparent turntable 2 is mounted on the base 1. The base 1 is fixed on the paper. By rotating the transparent turntable 2, the paper cutting head assembly 3 is driven to perform the circular cutting operation of the paper.

[0025] The base 1 is hollow inside, and a guide groove 5 for placing steel balls 4 is opened on the bottom side. The steel balls 4 are embedded or placed on the guide groove 5. A slot 6 is opened on the upper side of the guide groove 5. The transparent turntable 2 protrudes in the middle, and a guide edge 7 with a height smaller than the transparent turntable 2 is opened around it. A groove 8 is opened below the guide edge 7, and the groove 8 is directly opposite the steel balls 4. A turntable cover 9 is installed above the guide edge. A buckle 10 is opened on the turntable cover 9. The buckle 10 is locked into the slot 6 to prevent the transparent turntable 2 from falling out.

[0026] like Figure 3-4 As shown, the transparent turntable 2 has a recessed working area 12, and a long strip-shaped cutout 11 is provided in the working area 12. A paper cutter head assembly 3 is installed in the cutout. Dimensions 13 are engraved on both sides of the cutout in the working area 12. By installing the paper cutter head assembly 3 in different dimensional positions, various sizes of circles can be cut. In addition to the working area 12, the transparent turntable 2 also has a handheld part 14.

[0027] The paper cutter head assembly 3 consists of a sliding positioning body 15, a telescopic blade assembly 16, an indicator plate 17, and a sliding positioning base 18. The sliding positioning base 18 consists of a bottom fixing plate 19 and a connecting column 34. The bottom fixing plate 19 is installed below the elongated cutout 11. The middle connecting column 20 passes through the cutout and is screwed onto the cutout of the working area 12 by the upper sliding positioning body 15. An indicator plate 17 is installed between the sliding positioning body 15 and the sliding positioning base 18. The indicator plate 17 is used to determine the size and position of both sides of the cutout. The telescopic blade assembly 16 is installed inside the sliding positioning body 15.

[0028] The telescopic blade assembly 16 consists of a rotating cap 20, a spring 21, a blade 22, and a fixing member 23. The fixing member 23 is inserted into the sliding positioning base 18 and is limited by the limiting vertical grooves 24 on both sides. A limiting top 25 is provided at the top of the sliding positioning body 15. The limiting top 25 and the limiting vertical grooves 24 restrict the fixing member 23 to slide up and down within the sliding positioning base 18 and prevent it from falling out. The blade 22 has a handle 26 and a blade head 27. The blade head 27 is inserted into the fixing member 23. A spring 21 is sleeved on the handle 26. The handle 26 and the sleeved spring 21 are partially inserted into the connector 29 arranged below the rotating cap 20. The connector 29 has an external thread 30, which is screwed into the internal thread 28 inside the fixing member 23. The extension and retraction of the blade head 27 is achieved by forward and reverse screwing. The handheld part 14 is a finger hole or a handle. A storage box 31 is located at the bottom of the transparent turntable 2. Multiple slots 32 are arranged inside the storage box 31, into which the entire blade 22 is inserted for easy replacement. A storage box cover is fixed to the bottom of the storage box with screws. A silicone pad 33 is provided on the bottom surface of the base 1. Multiple limiting ribs 35 are provided on the guide groove, dividing the guide groove into multiple equally spaced slots, each containing at least two steel balls.

[0029] The partition divides the guide channel into multiple slots, each of the same length and size. Steel balls are embedded or placed in the guide channel. This has the advantages of saving the number of steel balls, making the whole structure less bulky, and making disassembly and installation easier. Cutting is also smoother, and there are gaps between the steel balls, making them more durable.

[0030] The working features of this utility model are as follows:

[0031] This utility model's multi-specification circular paper cutter places the paper pressure point as the center point on the outermost ring, using silicone pads to firmly press the paper, increasing the contact area and range. This prevents the paper from shifting easily when cutting small circles. Combined with evenly distributed steel balls on the outer ring, the cutting rotation is smooth, easily producing clean circles and improving overall applicability. The base features a snap-fit ​​blade structure, which, along with a blade storage box cover, allows for the storage of more blades. When a blade wears out, simply open the storage box cover to remove and replace it, eliminating the need to search elsewhere and improving overall efficiency and practicality. The paper cutter head assembly uses a threaded rotation structure to raise or lower the blade. During use, rotate according to the direction indicated on the blade's rotating cap; the blade points downwards for cutting. After use, reverse the rotation to raise the blade, protecting it from exposure and preventing cuts, thus improving overall safety.

[0032] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A multi-specification circular paper cutter, comprising a paper cutter body, characterized in that: The main body consists of a base, a transparent turntable, and a paper cutter head assembly. The paper cutter head assembly is mounted on the transparent turntable, which is mounted on the base. The base is fixed on the paper. By rotating the transparent turntable, the paper cutter head assembly is driven to perform a circular cutting operation on the paper.

2. The multi-specification circular paper cutter according to claim 1, characterized in that: The base is hollow inside, and a guide groove for placing steel balls is opened on the bottom side. The steel balls are embedded or placed in the guide groove. A slot is opened on the upper side of the guide groove. The transparent turntable protrudes in the middle, and a guide edge with a height smaller than the transparent turntable is opened around it. A groove is opened below the guide edge, and the groove is directly opposite the steel ball. A turntable cover is installed above the guide edge. The turntable cover has a buckle that engages with the slot to fix it and prevent the transparent turntable from falling out.

3. The multi-specification circular paper cutter according to claim 2, characterized in that: The transparent turntable has a recessed working area with a long, narrow cutout inside. A paper cutter head assembly is installed inside the cutout. Dimensions are engraved on both sides of the cutout on the working area. By installing the paper cutter head assembly at different dimensional positions, various sizes of circles can be cut. In addition to the working area, the transparent turntable also has a handheld part.

4. The multi-specification circular paper cutter according to claim 3, characterized in that: The paper cutter head assembly consists of a sliding positioning body, a telescopic blade assembly, an indicator plate, and a sliding positioning base. The sliding positioning base consists of a bottom fixing plate and a connecting column. The bottom fixing plate is installed below the elongated hollow section. The connecting column in the middle passes through the hollow section and is fixed to the upper sliding positioning body by screwing it onto the hollow section of the working area. An indicator plate is installed between the sliding positioning body and the sliding positioning base. The indicator plate is used to determine the size and position of both sides of the hollow section. The telescopic blade assembly is installed inside the sliding positioning body.

5. The multi-specification circular paper cutter according to claim 4, characterized in that: The telescopic blade assembly consists of a rotating cap, a spring, a blade, and a fixing member. The fixing member is inserted into the sliding positioning base and is limited by the limiting vertical grooves on both sides. A limiting top is provided at the top of the sliding positioning body. The limiting top and the limiting vertical grooves restrict the fixing member within the sliding positioning base to prevent it from falling out. The blade has a handle and a blade head. The blade head is inserted into the fixing member. A spring is sleeved on the handle. The handle and the sleeved spring are inserted into the connector arranged below the rotating cap. The connector has an external thread, which is screwed into the internal thread inside the fixing member. The extension and retraction of the blade head is achieved by forward and reverse screwing.

6. The multi-specification circular paper cutter according to claim 3, characterized in that: The handheld part is a finger hole or a handle.

7. The multi-specification circular paper cutter according to claim 3, characterized in that: A storage box is located at the bottom of the transparent turntable. The storage box has multiple slots with the blade inserted into them for easy replacement. The bottom of the storage box is secured with a lid by screws.

8. The multi-specification circular paper cutter according to claim 2 or 7, characterized in that: A silicone pad is provided on the bottom surface of the base.

9. The multi-specification circular paper cutter according to claim 2, characterized in that: The guide groove has multiple limiting ribs, which divide the guide groove into multiple equally spaced grooves, each containing at least two steel balls.

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