A paper cutter with rounded corner cutting function

Abstract

This utility model relates to the field of paper cutter technology, and mainly to a paper cutter with a rounded corner cutting function. It includes a work platform with a support mounted on the front side, forming a cutting opening between the support and the work platform for paper to pass through; a cutter assembly including a cutter holder, a cutter blade, and a rounded corner cutter blade; the cutter holder is mounted on the support, its extension direction and length corresponding to the cutting opening; the cutter blade and rounded corner cutter blade are mounted on the cutter holder, their cutting surfaces facing the work platform for cutting paper; a paper pressing assembly mounted on the support for fixing the paper; and a crank rod rotatably connected to the support, one end connected to the cutter assembly, and the other end detachably connected to a handle for driving the cutter assembly closer to or away from the work platform. After the paper is fixed by the paper pressing assembly, multiple sheets of paper can be cut straight or rounded simultaneously, significantly improving the versatility of the cutting function and better meeting user needs.

Description

Technical Field

[0001] This utility model relates to the field of paper cutter technology, and mainly to a paper cutter with rounded corner cutting function. Background Technology

[0002] Paper cutters, commonly used in office, printing, and packaging industries, are primarily used for straight-line cutting of sheet materials such as paper and cards to meet the needs of different sizes and specifications. Currently, most mainstream paper cutters on the market only possess a single straight-line cutting function. Their blade components and drive structures are designed only for planar straight-line cutting, unable to achieve rounded corner cutting of paper edges, thus failing to meet usage requirements. Therefore, there is an urgent need for a paper cutter that integrates both straight-line and rounded corner cutting functions, is easy to operate, and is cost-effective. Consequently, existing technology still requires improvement and development. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a paper cutter with a rounded corner cutting function, which aims to solve the problem that the existing paper cutter has only one function and cannot achieve rounded corner cutting.

[0004] The technical solution of this utility model is as follows: This utility model provides a paper cutter with rounded corner cutting function, including a working platform, wherein a support is provided on the front side of the working platform, and a cutting opening for paper to pass through is formed between the support and the working platform; The paper cutter with rounded corner cutting function also includes: The tool assembly includes a tool holder, a cutter, and a rounded cutter. The tool holder is mounted on the support and its extension direction and length correspond to the cutting opening. The cutter and the rounded cutter are both mounted on the tool holder, and the cutting parts of the cutter and the rounded cutter face the work platform for cutting paper. A paper-pressing assembly, mounted on the bracket, is used to hold the paper in place; The crank rod is rotatably connected to the bracket, with one end connected to the tool assembly and the other end detachably connected to a handle for driving the tool assembly to approach or move away from the work platform.

[0005] As a further improvement to the above technical solution, the tool assembly further includes: A connecting shaft is provided, through which the crank is connected to the tool holder, with the connection point located at one end of the tool holder; A guide shaft is arranged parallel to the connecting shaft, and is disposed on the tool holder at the end furthest from the connecting shaft; The connecting shaft and the guide shaft are fitted with bushings; The bracket is provided with an arc-shaped groove that slides with the connecting shaft, and the direction corresponds to the rotation trajectory of the crank. The bracket is also provided with an oblique groove corresponding to the guide shaft, and the oblique groove is inclined toward the cutting opening.

[0006] As a further improvement to the above technical solution, the tool assembly further includes: A guide plate, wherein the rounded corner cutter is mounted on the guide plate and connected to the cutter holder via the guide plate; The guide plate has a horizontal groove and a vertical groove. The horizontal groove is used to slide with the guide shaft, and the vertical groove is used to slide with the bracket.

[0007] As a further improvement to the above technical solution, the tool assembly further includes: A positioning plate is set on the working platform, positioned corresponding to the rounded corner cutter, and used to abut against the edge of the paper; A rounded corner pad, corresponding to the limiting plate, is set on the working platform, and the corners of the rounded corner pad are set with rounded corner structures whose dimensions correspond to those of the rounded corner cutter.

[0008] As a further improvement to the above technical solution, the paper pressing assembly includes: A pressure plate is slidably connected to the bracket. The pressure plate includes a vertical extension and a horizontal paper pressing part, the horizontal paper pressing part being used to press against the paper. The screw, threadedly engaged with the pressure plate, is used to drive the pressure plate closer to or away from the paper.

[0009] As a further improvement to the above technical solution, the transverse paper pressing part extends above the rounded corner pad, corresponding to the corner of the rounded corner pad.

[0010] As a further improvement to the above technical solution, the pressure plate is provided with a first limiting part, and the first limiting part is provided with a column corresponding to the direction of paper cutting. The tool holder is provided with a second limiting part corresponding to the first limiting part, and the second limiting part is provided with an opening for the column to pass through; The paper cutter with rounded corner cutting function also includes: A spring is sleeved on the column, with its two ends abutting against the first limiting part and the second limiting part, respectively.

[0011] As a further improvement to the above technical solution, the paper cutter with rounded corner cutting function also includes a safety component, which includes: A rotating shaft is rotatably mounted on the bracket. A stop plate is fixedly mounted on the rotating shaft to abut against the working platform and the tool assembly; A torsion spring is sleeved on the rotating shaft, with one end fixedly connected to the stop plate and the other end fixedly connected to the working platform.

[0012] As a further improvement to the above technical solution, the working platform is provided with a collection hole corresponding to the rounded corner cutter; The paper cutter with rounded corner cutting function also includes: The collection box is detachable from one side of the work platform, and a pull-out part is provided at one end extending out of the work platform. The opening of the collection box is connected to the collection hole.

[0013] As a further improvement to the above technical solution, a rocker arm is connected to the end of the screw outside the area where the working platform is located.

[0014] Beneficial effects: In this invention, the paper cutter forms a cutting opening between the front support of the work platform and the work platform for paper to pass through. Combined with a blade assembly integrating a cutter and a rounded-corner cutter, and after the paper is pressed and fixed by the paper pressing assembly, it can simultaneously perform straight-line or rounded-corner cutting of multiple sheets of paper without the need for additional equipment or blade replacement, significantly improving the versatility of cutting functions. Furthermore, the blade assembly is driven by the cooperation of a crank and a handle. The handle and crank are detachably connected, which not only allows the operator to easily drive the cutting action by turning the handle, reducing operational intensity, but also saves space during storage, improving operational convenience. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of the paper cutter with rounded corner cutting function of this utility model.

[0016] Figure 2 This is the second structural schematic diagram of the paper cutter with rounded corner cutting function of this utility model.

[0017] Figure 3 This is a front view of the paper cutter with rounded corner cutting function of this utility model.

[0018] Figure 4 This is a rear view of the paper cutter with rounded corner cutting function according to this utility model.

[0019] Figure 5 This is the third structural schematic diagram of the paper cutter with rounded corner cutting function of this utility model.

[0020] Labeling Explanation: 100, Working Platform; 110, Support; 111, Arc-shaped Groove; 112, Angled Groove; 120, Cutting Mouth; 130, Collection Hole; 200, Tool Assembly; 210, Tool Holder; 220, Cutting Blade; 230, Rounded Corner Cutting Blade; 240, Connecting Shaft; 250, Guide Shaft; 260, Guide Plate; 261, Horizontal Groove; 262, Vertical Groove; 270, Positioning Plate; 280, Rounded Corner Pad; 290, ... Second limiting part; 291, opening; 300, paper pressing assembly; 310, pressure plate; 311, vertical extension part; 312, horizontal paper pressing part; 320, screw; 321, rocker arm; 330, first limiting part; 331, column; 400, crank rod; 410, handle; 500, spring; 600, safety assembly; 610, rotating shaft; 620, stop plate; 630, torsion spring; 700, collection box; 710, pull-out part. Detailed Implementation

[0021] This utility model provides a paper cutter with a rounded corner cutting function. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following provides a more detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit this utility model.

[0022] Reference Figures 1-5 The present invention provides a paper cutter with rounded corner cutting function, including a working platform 100, wherein a support 110 is provided on the working platform 100 and located on the front side of the working platform 100, and a cutting opening 120 for paper to pass through is formed between the support 110 and the working platform 100. Paper cutters with rounded corner cutting function also include: The tool assembly 200 includes a tool holder 210, a cutter 220, and a rounded cutter 230. The tool holder 210 is mounted on the support 110, and its extension direction and length correspond to the cutting opening 120. The cutter 220 and the rounded cutter 230 are both mounted on the tool holder 210. The cutting parts of the cutter 220 and the rounded cutter 230 face the work platform 100 and are used to cut paper. The paper clamping assembly 300 is mounted on the bracket 110 and is used to fix the paper. The crank 400 is rotatably connected to the bracket 110. One end is connected to the tool assembly 200, and the other end is detachably connected to the handle 410, which is used to drive the tool assembly 200 to approach or move away from the work platform 100.

[0023] In this invention, the paper cutter forms a cutting opening 120 between the front support 110 and the work platform 100 to allow paper to pass through. Combined with a blade assembly 200 integrating a cutter 220 and a rounded-corner cutter 230, and after the paper is pressed and fixed by the paper pressing assembly 300, it can simultaneously perform straight-line or rounded-corner cutting of multiple sheets of paper without requiring additional equipment or blade replacement, significantly improving the versatility of cutting functions. Furthermore, the blade assembly 200 is driven to move by the cooperation of the crank 400 and the handle 410. The handle 410 and the crank 400 are detachably connected, which allows the operator to easily drive the cutting action by turning the handle 410, reducing operational intensity and saving space during storage, thus improving operational convenience.

[0024] In one specific embodiment of this utility model, the tool assembly 200 further includes: Connecting shaft 240, the crank 400 is connected to tool holder 210 through connecting shaft 240, and the connection point is located at one end of tool holder 210; The guide shaft 250 is arranged parallel to the connecting shaft 240, and is mounted on the tool holder 210 at the end away from the connecting shaft 240. Bushings are fitted onto the connecting shaft 240 and the guide shaft 250; The bracket 110 has an arc-shaped groove 111 that slides with the connecting shaft 240, and the direction corresponds to the rotation trajectory of the crank 400. The bracket 110 is also provided with an oblique groove 112 corresponding to the guide shaft 250, and the oblique groove 112 is inclined toward the cutting opening 120.

[0025] In this invention, the crank 400 is connected to one end of the blade holder 210 via a connecting shaft 240. An arc-shaped groove 111 corresponding to the rotation trajectory of the crank 400 is formed on the bracket 110, providing a sliding constraint to that end of the blade holder 210 that conforms to the motion law of the crank 400, ensuring that one end of the blade holder 210 can move stably along a preset arc trajectory when the crank 400 is driven. Simultaneously, a guide shaft 250 parallel to the connecting shaft 240 is provided at the end of the blade holder 210 away from the connecting shaft 240. This, combined with an inclined groove 112 on the bracket 110 tilting towards the cutting opening 120, provides directional sliding guidance for the other end of the blade holder 210. This allows the cutter 220 to tilt and slide to a certain extent during cutting, which helps ensure the cutting effect. Furthermore, both the connecting shaft 240 and the guide shaft 250 are fitted with bushings, reducing frictional wear between the shaft and the groove, and extending the service life of the components. The dual-guide structure ensures the stability and accuracy of the overall movement of the tool assembly 200, preventing tool deviation during the cutting process. Furthermore, the inclined design of the oblique groove 112 adapts to the position of the cutting opening 120, enabling the tool to accurately approach the cutting area and improving the continuity and accuracy of the cutting action.

[0026] In one specific embodiment of this utility model, the tool assembly 200 further includes: Guide plate 260, rounded corner cutter 230 is mounted on guide plate 260 and connected to cutter holder 210 through guide plate 260; The guide plate 260 has a horizontal groove 261 and a vertical groove 262. The horizontal groove 261 is used to slide with the guide shaft 250, and the vertical groove 262 is used to slide with the bracket 110.

[0027] After the guide shaft 250 slides through the transverse groove 261, a corresponding washer and nut can be provided at the end of the guide shaft 250 to ensure the connection between the guide plate 260 and the guide shaft 250 and the sliding fit between them.

[0028] In this invention, the blade holder 210 moves laterally due to the guidance of the arc groove 111 and the oblique groove 112. The rounded corner cutter 230 is driven by the handle 410 and the crank 400. If the rounded corner cutter 230 slides laterally during downward cutting, it will affect the cutting effect. This invention addresses this by setting a guide plate 260. When the guide shaft 250 moves along the oblique guide rail, the guide shaft 250 slides within the horizontal groove 261 while simultaneously driving the guide plate 260 downward. Through the cooperation of the vertical groove 262 and the bracket 110, the guide plate 260 is guided to move vertically, preventing the rounded corner cutter 230 from shifting. This effectively reduces the dimensional deviation in rounded corner cutting caused by cutter shift, ensuring a good rounded corner cutting effect through vertical cutting.

[0029] In one specific embodiment of this utility model, the tool assembly 200 further includes: The positioning plate 270 is set on the work platform 100, and its position corresponds to the rounded corner cutter 230. It is used to abut against the edge of the paper. The rounded corner pad 280, corresponding to the limiting plate, is set on the working platform 100. The corners of the rounded corner pad 280 are set with rounded corner structures whose dimensions correspond to those of the rounded corner cutter 230.

[0030] Specifically, the rounded corner pad 280 can be detachably connected to the work platform 100. The rounded corner pad 280 is placed when rounded corners need to be cut, and removed when straight cuts are needed.

[0031] In this invention, by setting a positioning plate 270 on the work platform 100 corresponding to the rounded corner cutter 230, the edge of the paper can be quickly positioned before rounding the corners, ensuring the accurate relative position of the paper and the rounded corner cutter 230 and avoiding deviations in the rounded corner cutting dimensions due to paper offset. A rounded corner pad 280, corresponding to the positioning plate 270 and with edges adapted to the rounded corner structure of the rounded corner cutter 230, provides stable support for the paper during rounded corner cutting. Furthermore, since rounded corner cutting is done by vertical pressure, the rounded corner pad 280 supports the portion to be cut, resulting in a stronger shearing action and improving the cutting effect when cutting a certain number of pieces of paper simultaneously. The matching design between the pad's rounded corner and the cutter further ensures the regularity of the rounded corners of the paper after cutting, improving the quality of rounded corner cutting.

[0032] In one specific embodiment of this utility model, the paper pressing assembly 300 includes: The pressure plate 310 is slidably connected to the bracket 110. The pressure plate 310 includes a vertical extension 311 and a horizontal paper pressing part 422, which is used to press against the paper. The screw 320 is threaded into the pressure plate 310 and is used to drive the pressure plate 310 to approach or move away from the paper.

[0033] In this invention, the paper pressing assembly 300 employs a slidingly connected pressing plate 310, which is divided into a vertical extension 311 and a horizontal pressing portion 422. The horizontal pressing portion 422 can contact and fix the paper. Equipped with a screw 320 threadedly engaged with the pressing plate 310, the operator can drive the pressing plate 310 closer to or further from the paper simply by rotating the screw 320. The stability of the threaded transmission allows for precise control of the pressure exerted by the pressing plate 310 on the paper, preventing both insufficient pressure that could cause paper displacement during cutting and excessive pressure that could damage the paper.

[0034] In one specific embodiment of this utility model, the transverse paper pressing part 422 extends above the rounded corner pad 280 and corresponds to the corner of the rounded corner pad 280.

[0035] In this invention, the transverse pressing part 422 extends above the rounded corner pad 280 and corresponds to the corner of the pad, so that when the rounded corner of the paper is cut, the transverse pressing part 422 can directly fix the rounded corner cutting area of ​​the paper, avoiding the problem that the traditional pressing part only fixes the non-rounded corner area of ​​the paper, causing local displacement of the paper during rounded corner cutting, and further ensuring the stability of the paper during rounded corner cutting.

[0036] In one specific embodiment of this utility model, a first limiting part 330 is provided on the pressure plate 310, and a column 331 corresponding to the direction of the paper cutting direction is provided on the first limiting part 330. The tool holder 210 is provided with a second limiting part 290 corresponding to the first limiting part 330, and the second limiting part 290 is provided with an opening 291 through which the column 331 can pass; Paper cutters with rounded corner cutting function also include: Spring 500 is sleeved on column 331, with its two ends abutting against the first limiting part 330 and the second limiting part 290 respectively.

[0037] The column 331 can also be set on the first limiting part 330, as long as it does not affect the paper cutting effect.

[0038] In this invention, a column 331 is provided in the cutting direction at the first limiting part 330 of the pressure plate 310, and an opening 291 is provided at the second limiting part 290 of the knife holder 210 for the column 331 to pass through. A spring 500 is sleeved on the column 331, with its two ends respectively abutting against the first and second limiting parts 290. When the knife assembly 200 moves up and down to cut, the second limiting part 290 moves towards the first limiting part 330, compressing the spring 500 and accumulating elastic potential energy, allowing the column 331 to pass through the opening 291. After cutting stops, the spring 500 can release the accumulated elastic potential energy, assisting the knife assembly 200 in resetting.

[0039] In one specific embodiment of this utility model, the paper cutter with rounded corner cutting function further includes a safety component 600, which includes: The rotating shaft 610 is rotatably mounted on the bracket 110; A stop plate 620 is fixedly mounted on the rotating shaft 610 and is used to abut against the work platform 100 and the tool assembly 200; Torsion spring 630 is sleeved on rotating shaft 610, with one end fixedly connected to stop plate 620 and the other end fixedly connected to working platform 100.

[0040] In use, the stop plate 620 can be easily moved by setting a transmission component or connecting part.

[0041] In this invention, the safety component 600 comprises a rotating shaft 610 with a stop plate 620 mounted on the bracket 110. A torsion spring 630, connected at one end to the stop plate 620 and at the other end to the work platform 100, is fitted onto the rotating shaft 610. When the equipment is not in use, the elastic force of the torsion spring 630 drives the stop plate 620 to abut against the work platform 100 and the cutter assembly 200, preventing the cutter assembly 200 from moving downwards and thus preventing accidental fall that could cause injury or equipment damage. When normal cutting is required, simply overcoming the elastic force of the torsion spring 630 to rotate the stop plate 620 allows the cutter assembly 200 to move, thereby releasing the limit. This achieves safety protection during equipment use without affecting normal cutting operations, improving equipment safety. Furthermore, with the setup of this application, after the operator stops cutting, the blade assembly 200 can be reset by the spring 500 and rise to the predetermined height. Then, the stop plate 620 can be reset by the torsion spring 630, which can self-lock when cutting is not required, ensuring a safety and security effect.

[0042] In one specific embodiment of this utility model, a collection hole 130 corresponding to the rounded corner cutter 230 is provided on the working platform 100; Paper cutters with rounded corner cutting function also include: The collection box 700 is detachably mounted on one side of the work platform 100, and a pull-out part 710 is provided at one end extending out of the work platform 100. The opening of the collection box 700 is connected to the collection hole 130.

[0043] In this invention, a collection hole 130 corresponding to the rounded corner cutter 230 is provided on the work platform 100. A detachable collection box 700 with an opening communicating with the collection hole 130 is provided. Paper scraps generated from cutting the rounded corners can fall directly into the collection box 700 through the collection hole 130, preventing paper scraps from scattering on the work platform 100 or the surrounding environment and reducing subsequent cleaning work. A pull-out part 710 is provided at one end of the collection box 700 extending beyond the work platform 100. Operators can quickly remove the collection box 700 from one side of the work platform 100 and empty the paper scraps using the pull-out part 710, which helps maintain a clean working environment.

[0044] In one specific embodiment of this utility model, the end of the screw 320 is connected to a rocker arm 432 outside the area where the working platform 100 is located.

[0045] In this invention, a rocker arm 432 is connected to the end of the screw 320 and extends outward to the working platform 100. The operator can drive the screw 320 to rotate by rotating the rocker arm 432. Compared with directly rotating the screw 320, the rocker arm 432 increases the lever arm. According to the lever principle, it can significantly reduce the force required to rotate the screw 320, allowing the operator to more easily drive the pressure plate 310 to fix or loosen the paper. It is especially suitable for scenarios where the position of the pressure plate 310 needs to be frequently adjusted, further improving the convenience of operation and reducing the labor intensity of the operator.

[0046] The working principle of this paper cutter with rounded corner cutting function is as follows: When preparing to cut, the elastic force of the torsion spring 630 in the safety assembly 600 drives the stop plate 620 on the rotating shaft 610 to abut against the work platform 100 and the tool assembly 200, preventing the tool assembly 200 from moving downward and avoiding the tool from falling accidentally when not in use; the handle 410 is assembled on the crank 400 according to the operation requirements to ensure that the subsequent drive is effective.

[0047] The operator places an appropriate number of sheets of paper to be cut onto the work platform 100 through the cutting opening 120 between the support 110 and the work platform 100. If rounded corner cutting is to be performed, after placing the rounded corner pad 280 and positioning it with the positioning plate 270, the paper is placed on the rounded corner pad 280, with the edges of the paper abutting against the positioning plate 270 on the work platform 100 for positioning. The rounded corner structure at the corners of the rounded corner pad 280 is adapted to the size of the rounded corner cutter 230, providing support for subsequent rounded corner cutting.

[0048] The operator rotates the rocker arm 432 at the end of the screw 320, causing the screw 320 to rotate. Since the screw 320 is threadedly engaged with the pressure plate 310, the rotation of the screw 320 translates into vertical movement of the pressure plate 310 along the support 110, driving the pressure plate 310 closer to the paper. The transverse paper-pressing portion 422 of the pressure plate 310 extends above the rounded corner pad 280 and corresponds to the edge of the pad. As the pressure plate 310 moves, the transverse paper-pressing portion 422 abuts against the paper surface, and the vertical extension portion 311 ensures the sliding stability of the pressure plate 310. By controlling the rotation amplitude of the rocker arm 432, the appropriate fixing pressure of the pressure plate 310 on the paper is adjusted, thus fixing the paper.

[0049] The operator overcomes the elastic force of the torsion spring 630 in the safety component 600 and rotates the stop plate 620 around the rotating shaft 610, so that the stop plate 620 is disengaged from the contact state with the tool assembly 200 and the work platform 100, making room for the tool assembly 200 to move down for cutting. The operator then turns the handle 410, causing the crank 400 connected to the handle 410 to rotate around the bracket 110. The crank 400 is connected to one end of the tool holder 210 through the connecting shaft 240. The connecting shaft 240 is fitted with a bushing and slides along the arc groove 111 on the bracket 110 corresponding to the rotation trajectory of the crank 400, providing a stable arc trajectory constraint for one end of the tool holder 210. At the same time, the end of the tool holder 210 away from the connecting shaft 240 is provided with a guide shaft 250 fitted with a bushing. The guide shaft 250 slides along the inclined groove 112 on the bracket 110 that is inclined toward the cutting opening 120, ensuring that the tool holder 210 moves down stably along the preset trajectory, causing the cutter 220 and the rounded cutter 230 on the tool holder 210 to move closer to the work platform 100 simultaneously.

[0050] The rounded corner cutter 230 is connected to the blade holder 210 via the guide plate 260. During the downward movement, the guide shaft 250 slides along the transverse groove 261 of the guide plate 260. At the same time, the bracket 110 and the vertical groove 262 of the guide plate 260 cooperate to guide the guide plate 260 to move vertically, preventing the rounded corner cutter 230 from shifting laterally. The cutting parts of the cutter 220 and the rounded corner cutter 230 face the work platform 100. As the blade holder 210 moves downward, the cutter 220 achieves straight-line cutting of the paper, while the rounded corner cutter 230, supported by the rounded corner pad 280, performs rounded corner cutting on the corresponding parts of the paper. The support of the rounded corner pad 280 makes the paper more evenly stressed during cutting, ensuring the cutting effect and neatness when multiple sheets of paper are cut at the same time.

[0051] When the tool holder 210 moves down, the second limiting part 290 on the tool holder 210 moves closer to the first limiting part 330 on the pressure plate 310. The spring 500 sleeved on the column 331 of the first limiting part 330 is compressed to accumulate elastic potential energy, which facilitates the subsequent reset of the tool assembly 200.

[0052] After cutting is completed, the operator releases handle 410, and spring 500 releases its stored elastic potential energy, pushing the second limit part 290 to move the tool holder 210 upward, thus automatically resetting the tool assembly 200. After the tool assembly 200 rises to the predetermined height, the torsion spring 630 of the safety component 600 drives the stop plate 620 to reset around the pivot 610, re-engaging with the work platform 100 and the tool assembly 200, thus automatically locking the equipment and preventing potential safety hazards in subsequent non-operational states.

[0053] The operator then reverses the rocker arm 432, causing the screw 320 to rotate in the opposite direction, driving the pressure plate 310 away from the paper, releasing the paper from its fixation, and then taking the cut paper out from the cutting opening 120.

[0054] Paper scraps generated during the rounded corner cutting process fall into the collection box 700 through the collection hole 130 on the work platform 100 corresponding to the rounded corner cutter 230. When the paper scraps accumulate to a certain amount, the operator can pull out the collection box 700 from one side of the work platform 100 through the pull-out part 710 extending from the collection box 700, empty the paper scraps, and put it back in, realizing convenient cleaning of paper scraps and keeping the working environment clean.

[0055] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of this utility model.

Claims

1. A cutting machine with a function of cutting a rounded corner, comprising a working platform (100), characterized in that, The work platform (100) is provided with a support (110) located on the front side of the work platform (100), and a cutting opening (120) for paper to pass through is formed between the support (110) and the work platform (100). The paper cutter with rounded corner cutting function also includes: A cutting tool assembly (200) includes a tool holder (210), a cutting blade (220), and a rounded cutting blade (230). The tool holder (210) is mounted on the support (110) and its extension direction and length correspond to the cutting opening (120). The cutting blade (220) and the rounded cutting blade (230) are both mounted on the tool holder (210). The cutting parts of the cutting blade (220) and the rounded cutting blade (230) face the work platform (100) and are used to cut paper. A paper-pressing assembly (300) is disposed on the bracket (110) for fixing the paper; The crank (400) is rotatably connected to the bracket (110), with one end connected to the tool assembly (200) and the other end detachably connected to a handle (410) for driving the tool assembly (200) to approach or move away from the work platform (100).

2. The cutting machine with the function of cutting rounded corners according to claim 1, characterized in that, The tool assembly (200) also includes: A connecting shaft (240) is provided, through which the crank (400) is connected to the tool holder (210), with the connection point located at one end of the tool holder (210); A guide shaft (250) is arranged parallel to the connecting shaft (240), and is disposed on the tool holder (210) at the end away from the connecting shaft (240); Bushings are fitted onto the connecting shaft (240) and the guide shaft (250); The bracket (110) has an arc-shaped groove (111) that slides with the connecting shaft (240), and the direction corresponds to the rotation trajectory of the crank (400); The bracket (110) is also provided with an oblique groove (112) corresponding to the guide shaft (250), and the oblique groove (112) is inclined toward the cutting opening (120).

3. The cutting machine with the function of cutting rounded corners according to claim 2, characterized in that, The tool assembly (200) also includes: Guide plate (260), the rounded corner cutter (230) is disposed on the guide plate (260) and connected to the cutter holder (210) through the guide plate (260); The guide plate (260) is provided with a horizontal groove (261) and a vertical groove (262). The horizontal groove (261) is used to slide with the guide shaft (250), and the vertical groove (262) is used to slide with the bracket (110).

4. The cutting machine with a fillet cutting function according to claim 1, characterized in that, The tool assembly (200) also includes: A positioning plate (270) is set on the working platform (100) and its position corresponds to that of the rounded corner cutter (230) for abutting against the edge of the paper; A rounded corner pad (280), corresponding to the positioning plate (270), is set on the working platform (100). The corners of the rounded corner pad (280) are set with rounded corner structures whose dimensions correspond to those of the rounded corner cutter (230).

5. The paper cutter with rounded corner cutting function according to claim 4, characterized in that, The paper pressing assembly (300) includes: The pressure plate (310) is slidably connected to the bracket (110). The pressure plate (310) includes a vertical extension (311) and a horizontal paper pressing part (312), which is used to press against the paper. The screw (320) is threaded into the pressure plate (310) and is used to drive the pressure plate (310) to approach or move away from the paper.

6. The paper cutter with rounded corner cutting function according to claim 5, characterized in that, The transverse paper pressing part (312) extends above the rounded corner pad (280) and corresponds to the corner of the rounded corner pad (280).

7. The paper cutter with rounded corner cutting function according to claim 5, characterized in that, The pressure plate (310) is provided with a first limiting part (330), and the first limiting part (330) is provided with a column (331) corresponding to the direction and the paper cutting direction. The tool holder (210) is provided with a second limiting part (290) corresponding to the first limiting part (330), and the second limiting part (290) is provided with an opening (291) for the column (331) to pass through. The paper cutter with rounded corner cutting function also includes: A spring (500) is sleeved on the column (331), with its two ends abutting against the first limiting part (330) and the second limiting part (290) respectively.

8. The paper cutter with rounded corner cutting function according to claim 1, characterized in that, The paper cutter with rounded corner cutting function also includes a safety component (600), which includes: A rotating shaft (610) is rotatably mounted on the bracket (110); A stop plate (620) is fixedly mounted on the rotating shaft (610) for abutting against the working platform (100) and the tool assembly (200); Torsion spring (630) is sleeved on the rotating shaft (610), with one end fixedly connected to the stop plate (620) and the other end fixedly connected to the working platform (100).

9. The paper cutter with rounded corner cutting function according to claim 1, characterized in that, The working platform (100) is provided with a collection hole (130) corresponding to the rounded corner cutter (230); The paper cutter with rounded corner cutting function also includes: The collection box (700) is detachable from one side of the work platform (100), and a pull-out part (710) is provided at one end extending out of the work platform (100). The opening of the collection box (700) is connected to the collection hole (130).

10. The paper cutter with rounded corner cutting function according to claim 5, characterized in that, The end of the screw (320) is connected to a rocker arm (432) outside the area where the working platform (100) is located.

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