Paper cutter and double-blade paper cutter

Abstract

The embodiment of the utility model discloses a paper cutter and a double-cutter paper cutter, the double-cutter paper cutter comprises a shell, the shell comprises a first side wall and a second side wall, and a left side paper cutting system is arranged on the first side wall and comprises a first slit and a first cutter; the right paper cutting system is arranged on the second side wall and comprises a second slit and a second cutter; the first slit and the second slit axially extend from the paper feeding end of the shell; the cutting blade is configured to cut the paper entering the slit from one end of the housing. The left paper cutting system and the right paper cutting system are arranged, and the double-blade paper cutter which is efficient, accurate, safe and suitable for the left-hand crowd and the right-hand crowd is jointly formed.

Description

Technical Field

[0001] This application relates to a cutting device for paper tube packaging paper, and more particularly to a paper cutter and a double-blade paper cutter. Background Technology

[0002] A paper cutter is a mechanical device specifically designed for cutting paper and other similar materials (such as film, labels, cardstock, etc.). It is widely used in printing, office supplies, packaging, graphic design, education, and handicrafts. Existing paper cutters typically have a cutting system on only one side, making them suitable for right-handed users or for cutting paper from only one side. Utility Model Content

[0003] A first aspect of this application provides a dual-blade paper cutter, comprising a housing, the housing including a first sidewall and a second sidewall; a left-side paper cutting system disposed on the first sidewall, including a first slit and a first cutting blade; and a right-side paper cutting system disposed on the second sidewall, including a second slit and a second cutting blade; both the first slit and the second slit extend axially from the paper feed end of the housing; the blade of the first cutting blade faces the port of the first slit, and the first cutting blade is configured to cut paper entering from the port of the first slit; the blade of the second cutting blade faces the port of the second slit, and the second cutting blade is configured to cut paper entering from the port of the second slit.

[0004] Analysis shows that the double-blade paper cutter provided in the first aspect of this application has a left-side cutting system and a right-side cutting system, which together constitute an efficient, accurate, safe, and suitable double-blade paper cutter for both left-handed and right-handed users. Simultaneously, a paper-separating structure is provided, formed by the first and second sidewalls and their corresponding bottom edges. Paper can be pulled out from the bottom edge of the first or second sidewall through the opening of the receiving cavity, allowing for the measurement of the required preset paper length, and then cutting using the conventional cutting system. The paper-separating structure effectively separates the paper, ensuring that each cut is neat and consistent, improving cutting efficiency and quality.

[0005] A second aspect of this application provides a paper cutter, including a housing with a first sidewall and a second sidewall, forming a receiving cavity between the first sidewall and the second sidewall for accommodating a paper roll; the first sidewall, the second sidewall, and their corresponding bottom edges forming a paper separating structure; a slit disposed on the first sidewall or the second sidewall, the slit extending axially from the paper feed end of the housing; and a cutting blade, the cutting edge of which is disposed within the slit and faces the port of the slit, the cutting blade being configured to cut paper entering from the port of the slit.

[0006] Analysis reveals that the second aspect of this application provides a paper cutter. The receiving cavity for accommodating the paper roll facilitates placement and fixation of the paper roll, ensuring smooth unfolding of the paper during cutting and improving cutting stability and accuracy. The first and second sidewalls provide stable structural support, ensuring the paper cutter will not deform or shift during use, guaranteeing the durability and reliability of the equipment. The paper-separating structure effectively separates the paper, ensuring neat and consistent paper cutting each time, improving cutting efficiency and quality. A slit guides the paper along a predetermined path into the cutting area, ensuring cutting accuracy and consistency. The axially extending slit ensures the paper will not shift during cutting, improving cutting effect and reducing waste paper generation. Attached Figure Description

[0007] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein:

[0008] Figure 1 This is a three-dimensional structural diagram of the first type of double-blade paper cutter in the embodiments of this application;

[0009] Figure 2 This is a three-dimensional structural diagram of the first type of double-blade paper cutter in the embodiments of this application from another angle;

[0010] Figure 3 This is a schematic diagram of the first type of double-blade paper cutter in the embodiments of this application and a partially enlarged schematic diagram of point A;

[0011] Figure 4 This is a schematic diagram of the first type of double-blade paper cutter in the embodiments of this application and a partially enlarged schematic diagram at point B;

[0012] Figure 5 This is a schematic diagram of the second type of double-blade paper cutter in the embodiments of this application;

[0013] Figure 6 This is an exploded view of the second type of double-blade paper cutter and cutting system in the embodiments of this application;

[0014] Figure 7 This is a schematic diagram of the second type of double-blade paper cutter in the embodiments of this application and a partially enlarged schematic diagram at point C;

[0015] Figure 8 This is a schematic diagram of the second type of double-blade paper cutter in the embodiments of this application and a partially enlarged schematic diagram at point D;

[0016] Figure 9 This is a schematic diagram of the three-dimensional structure of the third paper cutter in the embodiments of this application;

[0017] Figure 10This is a schematic diagram of the third type of paper cutter from another angle in the embodiments of this application;

[0018] Figure 11 This is a three-dimensional structural diagram of the fourth paper cutter in the embodiments of this application;

[0019] Figure 12 This is a three-dimensional structural diagram of the fifth paper cutter according to an embodiment of this application;

[0020] Figure 13 This is an exploded view of the fifth paper cutter and cutter system according to an embodiment of this application;

[0021] Figure 14 This is a schematic diagram of the three-dimensional structure of the sixth paper cutter and the disassembly of the cutting blade in the embodiments of this application;

[0022] Figure 15 This is a schematic diagram of the sixth paper cutter structure in the embodiments of this application and a partially enlarged schematic diagram at point E;

[0023] Figure 16 This is a three-dimensional structural diagram of the sixth paper cutter in the embodiments of this application from another angle. Detailed Implementation

[0024] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0025] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0026] The accompanying drawings illustrate one or more examples of this application. The detailed description uses numerical and alphabetic designations to refer to features in the drawings. Similar or analogous designations in the drawings and description have been used to refer to similar or analogous parts of this application. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0027] like Figures 1 to 13 As shown, the double-blade paper cutter according to an embodiment of this application is configured to partially accommodate an elongated paper roll within a hollow interior defined by the cutter's walls. The cutter's housing 1 has two open ends and a middle portion extending through the two ends, the middle portion defining the overall length of the cutter. The direction defining the length of the middle portion is axial, and when the cutter is in operation, the direction perpendicular to the placement plane is longitudinal. The axially extending middle portion of the housing 1 can cover at least a portion of the paper roll. The housing 1 includes a longitudinally extending first sidewall 30 and a second sidewall 40, forming a receiving cavity 6 between the first sidewall 30 and the second sidewall 40 to accommodate the paper roll. The receiving cavity 6 utilizes the internal space of the housing 1 to accommodate the paper roll, improving space utilization and making the cutter more compact and portable.

[0028] The receiving cavity 6 has an open receiving cavity opening 3, which is arranged along the axial direction of the housing 1. The open receiving cavity opening 3 facilitates the installation and replacement of the paper roll, improving the user's operational convenience. The width of the receiving cavity opening 3 is greater than the diameter of the paper roll, allowing the paper roll to rotate circumferentially within the receiving cavity 6. The first side wall 30 and its bottom side edge 9a, the second side wall 40 and its bottom side edge 9b, the receiving cavity 6, and the receiving cavity opening 3 form a paper-separating structure on each side. Each side paper-separating structure is suitable for left-handed and right-handed users respectively. Each side paper-separating structure can effectively separate the paper. When using the paper-separating structure, the paper is pulled out from the receiving cavity opening 3 between the bottom side edge 9a of the first side wall 30 or the bottom side edge 9b of the second side wall 40, flattened and unfolded through the bottom side edge 9a of the first side wall 30 or the bottom side edge 9b of the second side wall 40, and the required preset length of the paper is measured. Then, it is cut using a conventional paper-cutting system. After ensuring that each cut of paper is neat and consistent, use the corresponding left or right paper cutting system for cutting.

[0029] The width of opening 3 is greater than the diameter of the paper roll, allowing the paper roll to rotate circumferentially within the receiving cavity 6. Opening 3 ensures smooth unfolding and cutting of the paper, improving cutting continuity and efficiency. The first sidewall 30 and the second sidewall 40 provide stable structural support, ensuring that the paper roll can be placed and unfolded stably during use, improving cutting stability and precision, and guaranteeing the durability and reliability of the paper cutter during operation.

[0030] In some embodiments, such as Figures 1-8 As shown, a left-side paper cutting system is provided on the first sidewall 30, and a right-side paper cutting system is provided on the second sidewall 40. The left-side and right-side paper cutting systems are symmetrically arranged. The left-side paper cutting system includes a first slit 8a extending axially from the paper feed end 10 of the housing 1 and a first cutting blade 4a disposed within the housing 1. The blade of the first cutting blade 4a faces the port of the first slit 8a, and the angle and position of contact between the blade and the paper can be adjusted to improve cutting quality. The first cutting blade 4a is configured to cut paper entering from the port of the first slit 8a. The right-side paper cutting system includes a second slit 8b extending axially from the paper feed end 10 of the housing 1 and a second cutting blade 4b disposed within the housing 1. The blade of the second cutting blade 4b faces the port of the second slit 8b, and the angle and position of contact between the blade and the paper can be adjusted to improve cutting quality. The second cutting blade 4b is configured to cut paper entering from the port of the second slit 8b. In use, some people are used to using their left hand and some are used to using their right hand. The left and right paper cutting system in this embodiment can be adapted to different hand habits.

[0031] Furthermore, to accommodate different hand habits, in some embodiments, such as Figures 9-11 As shown, the first sidewall 30 is provided with a left-side paper cutting system and the second sidewall 40 is provided with a right-side paper cutting system. The left-side paper cutting system and the right-side paper cutting system are arranged symmetrically. For example... Figures 9-10 The paper cutter shown has both its left and right cutting systems designed for right-handed users; for example... Figure 11 The paper cutter shown is centrally symmetrically designed, with both its left and right cutting systems suitable for left-handed users.

[0032] In some embodiments, such as Figures 12-13 As shown, the first sidewall 30 is provided with two left-side paper cutting systems, wherein the two left-side paper cutting systems of the first sidewall 30 simultaneously meet the needs of both left-handed and right-handed users.

[0033] In some embodiments, such as Figures 12-13 As shown, the second sidewall 40 is provided with two right-side paper cutting systems, which simultaneously meet the needs of both left-handed and right-handed users.

[0034] The first slit 8a and the second slit 8b in the above technical solution can guide the paper along a predetermined path into the cutting area, ensuring cutting accuracy and consistency. The axially extending first slit 8a and second slit 8b ensure that the paper does not shift during cutting, improving cutting efficiency and reducing waste. The cutting blades 4a and 4b are fixedly installed inside the housing 1 to ensure safety during use and prevent accidental injury.

[0035] In some embodiments, such as Figures 1-4 As shown, the first cutting blade 4a and the second cutting blade 4b of the paper cutting system are pre-installed inside the housing 1, that is, the housing 1 and the paper cutting system are an integral structure.

[0036] In some embodiments, such as Figures 5-13 As shown, the housing 1 and the paper cutting system are detachable, meaning that a portion of the housing in the paper cutting system can be detached from the housing 1. The first cutting blade 4a and the second cutting blade 4b can be pre-installed in pre-set slots in the portion of the housing of the paper cutting system, and then the portion of the housing of the paper cutting system is reinstalled onto the housing 1.

[0037] In some embodiments, such as Figures 1-13 As shown, the double-blade paper cutter also includes paper pressing plates 7a and 7b, wherein the first paper pressing plate 7a is disposed on the outer wall of the first side wall 30 and covers at least part of the first slit 8a; the second paper pressing plate 7b is disposed on the outer wall of the second side wall 40 and covers at least part of the second slit 8b.

[0038] The paper-pressing plates 7a and 7b extend downwards and partially cover the slits 8a and 8b, leaving a gap between the paper-pressing plates 7a and 7b and the slits 8a and 8b. This gap helps control the paper's guide path and reduces paper deviation during the cutting process. The paper-pressing plates 7a and 7b can bend the paper entering the slits into an arc shape, so that the paper achieves greater stiffness and tension before reaching the cutting blade.

[0039] The paper-pressing plates 7a and 7b keep the outward-moving paper pressed downwards as it enters the slits 8a and 8b, ensuring the paper remains flat during cutting, reducing paper jitter and deviation, and improving cutting accuracy and quality. The paper-pressing plates 7a and 7b prevent the paper from curling or wrinkling when entering the slits 8a and 8b, ensuring paper flatness and improving cutting results. During operation, the paper-pressing plates 7a and 7b make it easier to control the paper's entry, improving operational convenience and efficiency. The paper-pressing plates 7a and 7b prevent fingers or other foreign objects from entering the slits, improving safety during use.

[0040] In some embodiments, such as Figures 1-13As shown, the first sidewall 30 includes a first inclined guide edge 12a, which is disposed on the lower housing 1 corresponding to the port of the first slit 8a. The first inclined guide edge 12a is inclined outward and downward relative to the first slit 8a. The second sidewall 40 includes a second inclined guide edge 12b, which is disposed on the lower housing 1 corresponding to the port of the second slit 8b. The second inclined guide edge 12b is inclined outward and downward relative to the second slit 8b.

[0041] The inclined guide edges 12a and 12b guide the paper smoothly into the slits 8a and 8b, ensuring that the paper does not deviate from the predetermined path when entering the slits, improving cutting accuracy, reducing resistance when the paper enters the slits, and improving operational convenience and efficiency. The inclined guide edges 12a and 12b prevent paper jams when entering the slits 8a and 8b, reducing the failure rate. The inclined guide edges 12a and 12b make it easier to align the paper with the slits 8a and 8b, improving operational convenience and consistency.

[0042] In some embodiments, such as Figures 1-4 As shown, the paper pressing plates 7a and 7b both include a paper pressing guide edge 71, which is located on one side near the port of the slits 8a and 8b. The paper pressing guide edge 71 can cooperate with the inclined guide edges 12a and 12b to guide the paper into the slits 8a and 8b.

[0043] In some embodiments, such as Figures 1-13 As shown, the housing 1 includes a first tip 11a and a second tip 11b. The first tip 11a is disposed at the lower end of the housing 1 corresponding to the port of the first slit 8a; the second tip 11b is disposed at the lower end of the housing 1 corresponding to the port of the second slit 8b.

[0044] Tips 11a and 11b make it easier to align the paper with the slit during operation, reducing the hassle of manually separating the paper, improving the convenience and efficiency of operation, and ensuring that the paper enters the cutting area smoothly, reducing the failure rate.

[0045] In some embodiments, such as Figures 5-13 As shown, both the first tip 11a and the second tip 11b protrude outwards relative to the paper feed end 10 of the housing 1. Tips 11a and 11b can more easily lift the paper, especially when the paper is thin or stuck together; tips 11a and 11b can easily insert under the paper to separate it. The outward-protruding tip design increases visibility, allowing the user to more clearly see the paper's entry position and status. This helps the user to promptly detect and correct any positional deviations in the paper, further improving cutting accuracy and quality.

[0046] In some embodiments, such as Figures 1-4As shown, the bottom edge 9a of the first sidewall 30 and the bottom edge 9b of the second sidewall 40 form a support structure 9, with the bottom of the support structure 9 positioned on the same plane. This ensures the stability of the paper cutter during placement, preventing it from tilting or shaking during use and ensuring even force on both sides of the paper during cutting. It also reduces the problem of excessive localized paper pressure when the paper cutter moves during use. The support structure 9 can adapt to workbenches of different heights and flatnesses, allowing the paper cutter to be placed stably on desktops, workbenches, or other flat surfaces, improving its applicability and flexibility.

[0047] In some embodiments, such as Figures 5-13 As shown, the dual-blade paper cutter also includes a support structure comprising four support rollers 91 mounted on the housing 1, with the bottom edges of the four rollers 91 positioned on the same plane. The support rollers 91 reduce friction between the paper and the worktable, allowing the paper cutter to move easily and adapt to worktables of varying heights and flatness, thus improving the equipment's applicability and flexibility. Furthermore, the support rollers 91 reduce noise generated during movement, enhancing the user experience.

[0048] In some embodiments, such as Figures 5-13 As shown, the housing 1 also includes a third inclined guide edge 13a and a fourth inclined guide edge 13b. The third inclined guide edge 13a is disposed on the upper first sidewall 30 corresponding to the port of the first slit 8a, and the third inclined guide edge 13a is inclined outward and upward relative to the first slit 8a; the third inclined guide edge 13a and the first inclined guide edge 12a form the expansion opening of the first slit 8a. The fourth inclined guide edge 13b is disposed on the upper second sidewall 40 corresponding to the port of the second slit 8b, and the fourth inclined guide edge 13b is inclined outward and upward relative to the first slit 8b; the fourth inclined guide edge 13b and the first inclined guide edge 12b form the expansion opening of the first slit 8a.

[0049] The third inclined guide edge 13a, together with its corresponding first inclined guide edge 12a, and the fourth inclined guide edge 13b, together with its corresponding first inclined guide edge 12b, form expansion openings, enlarging the entrances to the first slit 8a and the second slit 8b. This makes it easier for paper to enter the slits, reducing problems such as paper jamming or misalignment caused by insufficient entrance size. The inclined guide edges 13a and 13b guide the paper smoothly into the slits 8a and 8b, ensuring that the paper does not deviate from the predetermined path when entering the slits. This improves the accuracy and consistency of paper entering the slits, thereby improving the precision and quality of cutting. The inclined guide edges 13a and 13b reduce the resistance when the paper enters the slits, making it easier to guide the paper into the slits. This improves the convenience and efficiency of operation and reduces the difficulty of operation for users. The expansion openings prevent paper jamming when entering the slits, ensuring that the paper enters the cutting area smoothly, reducing the failure rate, and thus improving the reliability and stability of the equipment.

[0050] In some embodiments, such as Figures 5-13 As shown, the grip 2 is connected to the housing 1. When force is applied to the grip 2, at least one component of the force is perpendicular to the contact plane of the paper cutter. This ensures that the paper cutter will not deviate from the preset cutting trajectory and move laterally due to the applied force during the cutting process, improving the stability and accuracy of operation. It also reduces accidental slippage by the user during cutting, lowers the risk of fingers or other parts coming into contact with the cutting blade, and improves safety during use.

[0051] In some embodiments, such as Figures 1-4 As shown, the outer wall of the paper cutter housing 1 is also provided with anti-slip texture 14. The anti-slip texture 14 can significantly increase the friction of the outer wall of the housing 1. When operating the paper cutter, especially when a large cutting force needs to be applied, the anti-slip texture 14 can ensure that the user's hand will not slip, and the hand can grip the paper cutter more firmly without having to use excessive force to maintain the grip, thereby reducing the burden on the hand and wrist, reducing inaccurate cutting or accidental injury caused by hand slippage, improving the stability and safety of operation, and thus increasing the stability of the grip.

[0052] According to embodiments of this application, such as Figures 14-16 As shown, a paper cutter is provided, including a housing 1. The housing 1 includes a first sidewall 30 and a second sidewall 40. A receiving cavity 6 for accommodating a paper roll is formed between the first sidewall 30 and the second sidewall 40. The first sidewall 30, the second sidewall 40, and their corresponding bottom edges form a paper-splitting structure. During the paper-splitting operation, the paper is pulled out from the opening 3 of the receiving cavity between the bottom edges of the first sidewall 30 or the second sidewall 40, unfolded and flattened through the bottom edges of the first sidewall 30 or the second sidewall 40, and the required preset paper length is measured before cutting. The paper-splitting structure can effectively separate the paper, ensuring that the paper cuts are neat and consistent each time, improving the efficiency and quality of cutting.

[0053] The bottom edge of the first sidewall 30 or the bottom edge of the second sidewall 40 ensures that the paper roll can be placed and unfolded stably during use, improving the stability and accuracy of cutting, and guaranteeing the durability and reliability of the paper cutter during use. The receiving cavity 6 utilizes the internal space of the housing 1 to place the paper roll and can rotate circumferentially, improving space utilization and making the paper cutter more compact and portable.

[0054] In some embodiments, the bottom edge 9a of the first sidewall 30 and the bottom edge 9b of the second sidewall 40 of the double-blade paper cutter form a support structure. The bottom of the support structure is set to be on the same plane. The support structure prevents the paper cutter from tilting or wobbling during use, ensuring that the paper is evenly stressed on both sides when the paper cutter is moving. This reduces the problem of excessive local paper pressure during the movement of the paper cutter, ensuring the stability of the paper cutter when placed.

[0055] A slit 8 is disposed on the bottom edge of the housing 1 near the corresponding side wall 30 or the second side wall 40, and extends axially from the paper feed end 10 of the housing 1. The blade of the cutting blade 4 is disposed within the slit 8, and the cutting blade 4 is configured to cut the paper entering the slit 8 from the paper feed end 10 of the housing 1. The slit 8 can guide the paper along a predetermined path into the cutting area, ensuring the accuracy and consistency of the cutting. The slit 8 also prevents the paper from shifting during the cutting process, improving the cutting effect.

[0056] The paper-pressing plate 7 is connected to the outer wall of the housing 1, and the paper-pressing plate 7 at least partially covers the corresponding slit 8. The paper-pressing plate 7 helps control the paper's feeding path and reduces paper deviation during the cutting process. The paper-pressing plate 7 can bend the paper fed into the slit into an arc shape so that the paper reaches maximum stiffness and tension before reaching the cutting blade.

[0057] A downward-sloping guide edge 12 is disposed on the lower housing 1 corresponding to the port of the slit 8. The downward-sloping guide edge 12 extends outward from the slit 8 and slopes downward. The downward-sloping guide edge 12 guides the paper smoothly into the slit 8, ensuring that the paper does not deviate from the predetermined path when entering the slit, thereby improving cutting accuracy, reducing resistance when the paper enters the slit, and improving the convenience and efficiency of operation.

[0058] The tip 11 is located at the end of the lower housing 1 corresponding to the port of the slit 8. The tip 11 can extend under the paper to be cut and lift it upwards. The tip 11 makes it easier to lift the paper, especially when the paper is thin or stuck together. The tip 11 can easily insert under the paper to separate it. During operation, it is easier to align the paper with the slit, reducing the trouble of manually separating the paper, improving the convenience and efficiency of operation, thereby ensuring that the paper enters the cutting area smoothly and reducing the failure rate.

[0059] The tip 11 protrudes outward relative to the paper feed end 10 of the housing 1. The outward protrusion of the tip increases the visibility of the paper cutter inserting into the paper, allowing for a clearer view of the paper's entry position and status during use.

[0060] An upwardly inclined guide edge 13 is disposed on the upper first sidewall 30 or second sidewall 40 corresponding to the port of the slit 8. The upwardly inclined guide edge 13 is inclined outward and upward relative to the slit 8. The upwardly inclined guide edge 13 can guide the paper smoothly into the slit 8, ensuring that the paper does not deviate from the predetermined path when entering the slit. This improves the accuracy and consistency of the paper entering the slit 8, thereby improving the precision and quality of cutting.

[0061] In some embodiments, the outer wall of the housing 1 is also provided with anti-slip texture 14, which significantly increases the friction of the outer wall of the housing 1. The anti-slip texture 14 can ensure that the user's hand will not slip, thereby increasing the stability of the grip.

[0062] In some embodiments, such as Figures 14-16 As shown, the cutter 4 and the housing 1 are detachable. They are detachably installed via a pre-set mounting slot 41 within the wall of the housing 1. Users can easily remove and replace the cutter without needing to send it for repair or purchase a new paper cutter, saving costs and time. The detachable structure allows users to periodically replace worn cutters or remove them for cleaning. This helps remove residual paper scraps and other impurities from the cutter, maintaining its sharpness and cleanliness, improving cutting quality and efficiency, and extending the overall lifespan of the paper cutter. This not only reduces the overall maintenance cost of the equipment but also ensures the long-term performance and reliability of the paper cutter. The cutter 4 can be a standalone utility knife or other blade suitable for the pre-set mounting slot 41. The detachable and independently usable cutter 4 not only facilitates replacement but also increases its functionality and enhances the tool's versatility, applicability, and flexibility.

[0063] In some embodiments, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 and Figure 15 As shown, the cutting edge of the cutter and the sides corresponding to the slit 8 form rhomboid openings 5, 5a, and 5b. When the paper approaches the cutting blade 4, it slides upwards along the direction of the cutting edge of the blade 4 as soon as it touches the blade. At this time, the rhomboid openings 5, 5a, and 5b can disperse the stress at the cutting point, reduce stress concentration, and make the edge of the paper more stable during cutting, reducing the risk of edge deformation and tearing.

[0064] The above descriptions are merely some embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A double-blade paper cutter, characterized in that, Including: The housing (1) includes a first sidewall (30) and a second sidewall (40). A left-side paper cutting system is disposed on the first sidewall (30), the left-side paper cutting system including a first slit (8a) and a first cutting blade (4a). A right-side paper cutting system is disposed on the second sidewall (40), the right-side paper cutting system including a second slit (8b) and a second cutting blade (4b). Both the first slit (8a) and the second slit (8b) extend axially from the paper feed end (10) of the housing (1); The blade of the first cutting blade (4a) faces the port of the first slit (8a), and the first cutting blade (4a) is configured to cut paper entering from the port of the first slit (8a); The blade of the second cutter (4b) faces the port of the second slit (8b), and the second cutter (4b) is configured to cut paper entering from the port of the second slit (8b).

2. The double-blade paper cutter according to claim 1, characterized in that, It also includes: A first paper-pressing upright plate (7a) is disposed on the outer wall of the first side wall (30) and covers at least part of the first slit (8a). The second paper pressing plate (7b) is disposed on the outer wall of the second side wall (40) and covers at least part of the second slit (8b).

3. The double-blade paper cutter according to claim 1, characterized in that, A receiving cavity (6) for accommodating a paper roll is formed between the first sidewall (30) and the second sidewall (40). The first sidewall (30) and its bottom edge, and the second sidewall (40) and its bottom edge respectively form a paper separating structure; The first sidewall (30) includes a first inclined guide edge (12a), which is disposed on the housing (1) below the port of the first slit (8a). The first inclined guide edge (12a) is inclined outward and downward relative to the first slit (8a). The second sidewall (40) includes a second inclined guide edge (12b) disposed on the housing (1) below the port of the second slit (8b), the second inclined guide edge (12b) being inclined outward and downward relative to the second slit (8b).

4. The double-blade paper cutter according to claim 3, characterized in that, The housing (1) includes: The first tip (11a) is located at the end of the housing (1) below the port of the first slit (8a); The second tip (11b) is located at the end of the housing (1) below the port of the second slit (8b); Both the first tip (11a) and the second tip (11b) protrude outward relative to the paper feed end (10) of the housing (1).

5. The double-blade paper cutter according to claim 3, characterized in that, It also includes: The support structure (9) includes the bottom edge of the first sidewall (30) and the bottom edge of the second sidewall (40), and the bottom of the support structure (9) is disposed on the same plane; The cavity opening (3) is arranged along the axial direction of the housing (1), and the width of the cavity opening (3) is greater than the diameter of the paper roll.

6. The double-blade paper cutter according to claim 5, characterized in that, The housing (1) also includes: The third inclined guide edge (13a) is disposed on the first sidewall (30) above the port of the first slit (8a), and the third inclined guide edge (13a) is inclined outward and upward relative to the first slit (8a). A fourth inclined guide edge (13b) is disposed on the upper second sidewall (40) corresponding to the port of the second slit (8b), the fourth inclined guide edge (13b) being inclined outward and upward relative to the second slit (8b); The third inclined guide edge (13a) and the first inclined guide edge (12a) form the expansion opening of the first slit (8a); The fourth inclined guide edge (13b) and the second inclined guide edge (12b) form the expansion opening of the first slit (8a).

7. The double-blade paper cutter according to claim 1, characterized in that, It also includes The gripping part (2) is connected to the housing (1). When force is applied to the gripping part, at least one component of the force is perpendicular to the contact plane of the paper cutter.

8. The double-blade paper cutter according to claim 1, characterized in that, It also includes Anti-slip texture (14) is provided on the outer wall of the housing (1) to increase grip stability.

9. A paper cutter, characterized in that, Including: The housing (1) includes a first sidewall (30) and a second sidewall (40), and a receiving cavity (6) for accommodating a paper roll is formed between the first sidewall (30) and the second sidewall (40); the first sidewall (30) and its bottom side, and the second sidewall (40) and its bottom side respectively form a paper separating structure; A slit (8) is provided on the first sidewall (30) and / or the second sidewall (40), the slit (8) extending axially from the paper feed end (10) of the housing (1); A cutting blade (4) has its blade disposed within the slit (8) and facing the port of the slit (8), and is configured to cut paper entering from the port of the slit (8). A paper-pressing plate (7) is attached to the outer wall of the housing (1) and covers at least part of the slit (8).

10. The paper cutter according to claim 9, characterized in that, The housing (1) also includes: A downwardly inclined guide edge (12) is provided on the housing (1) below the port of the slit (8), and the downwardly inclined guide edge (12) is provided outward and downward from the slit (8); A tip (11) is provided at the end of the housing (1) below the port of the slit (8), and the tip (11) protrudes outward relative to the paper feed end (10) of the housing (1); An upwardly inclined guide edge (13) is disposed on the first sidewall (30) or the second sidewall (40) above the port of the slit (8). The upwardly inclined guide edge (13) is disposed outwardly and upwardly relative to the slit (8).

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