Cutter structure of paper cutter and paper cutter

Abstract

The utility model discloses a cutter structure of a paper cutter and the paper cutter. The cutter structure comprises a fixed seat, a first driver, a swing seat, a second driver, a cutter, a pressing ring and three guide wheels. The first driver is rotationally connected with the fixed seat and the swing seat, the swing seat is rotationally connected with the fixed seat, the three guide wheels are located in the pressing ring and connected to the swing seat, one guide wheel elastically abuts against the inner ring of the pressing ring, and the other guide wheel elastically abuts against the outer ring of the pressing ring. The inner ring of the pressing ring abuts against the other two guide wheels under the elastic force of one guide wheel. The cutter is also arranged on the inner ring of the pressing ring, and the second driver is connected with the swing seat and the cutter and used for driving the cutter to extend outwards or retract inwards into the pressing ring relative to the outer ring of the pressing ring. The cutter structure further comprises a belt clamping mechanism connected to the fixing base. The paper cutter mainly solves the technical problem of how to improve the structure of the cutter so as to reduce the size of the paper cutter.

Description

Technical Field

[0001] This utility model relates to the technical field of paper cutters, and in particular to a cutting tool structure and a paper cutter. Background Technology

[0002] Current paper cutter blade structures typically include both a pressure ring and a cutter. The pressure ring presses creases into the paper, allowing it to be folded into a predetermined shape laterally. The cutter cuts the paper to the desired shape. Currently, the pressure ring and cutter are mostly arranged laterally at intervals and their lifting and lowering are individually controlled by separate drives. This design results in a large blade structure, making the paper cutter correspondingly larger. Furthermore, when multiple blade structures are used to improve cutting efficiency, each blade structure is usually connected to a drive module to move it to the required position and simultaneously crease or cut the paper. These multiple drive modules also occupy considerable space, contributing to the large size of the paper cutter.

[0003] Therefore, improvements to existing technologies are necessary. Utility Model Content

[0004] This utility model provides a blade structure for a paper cutter and a paper cutter, mainly solving the technical problem of how to improve the blade structure to reduce the size of the paper cutter.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A cutting tool structure for a paper cutter includes a fixed base, a first driver, a swing base, a second driver, a cutter, a pressure ring, and three guide wheels;

[0007] The first driver is rotatably connected to the fixed base and the swing base respectively. The end of the swing base away from the first driver is rotatably connected to the fixed base. The three guide wheels are all located inside the pressure ring and are all connected to the swing base. One of the guide wheels elastically abuts against the inner ring of the pressure ring. The inner ring of the pressure ring abuts against the other two guide wheels due to the elastic force of one of the guide wheels. The cutter is also disposed on the inner ring of the pressure ring. The second driver is connected to the swing base and the cutter respectively, and is used to drive the cutter to extend outward or retract inward relative to the outer ring of the pressure ring into the pressure ring.

[0008] The tool structure also includes a belt clamping mechanism connected to the fixed base, the belt clamping mechanism having a clamped state of clamping the belt and a loosened state of loosening the belt.

[0009] In one technical solution, the fixed base includes a first base body and a second base body connected together. One end of the first driver is rotatably connected to the first base body, and the end of the swing seat away from the first driver is rotatably connected to the second base body. The first base body, the second base body, the swing seat, and the first driver are arranged together to form a quadrilateral structure. A portion of the pressure ring and the second driver are both housed within the quadrilateral structure. The belt clamping mechanism is connected between the first base body and the pressure ring.

[0010] In one of the technical solutions, a clamping part is provided on the first base, and the belt clamping mechanism includes a connected third driver and a clamping block. The third driver is fixed on the first base and connected to the clamping block, and is used to drive the clamping block to move closer to or away from the clamping part.

[0011] In one of the technical solutions, the clamping block moves closer to or further away from the clamping part in a horizontal direction.

[0012] In one of the technical solutions, a slider is fixed to the top of the first seat facing away from the belt clamping mechanism.

[0013] In one of the technical solutions, a guide wheel near the first seat body elastically abuts against the inner ring of the pressure ring.

[0014] In one of the technical solutions, a connector is fixed on the guide wheel that elastically abuts against the pressure ring, and a protrusion is provided on the swing seat. A spring is connected between the protrusion and the connector, and the connector has an upward tendency to move closer to the first seat body due to the elastic force of the spring.

[0015] In one of the technical solutions, recessed grooves are formed on the outer walls of the three guide wheels, and the inner ring of the pressure ring is simultaneously embedded in the grooves of the three guide wheels.

[0016] In one of the technical solutions, a solenoid valve is fixed on the mounting base, and the first driver, the second driver, and the third driver are all cylinders. The solenoid valve is used to connect to the first driver, the second driver, and the third driver respectively through air pipes.

[0017] This application also provides a paper cutter employing the aforementioned blade structure.

[0018] Compared with the prior art, the blade structure of the paper cutter provided by this utility model has at least the following beneficial effects:

[0019] When creasing is required on the cardboard, the cutter retracts into the pressure ring under the drive of the second driver, and the first driver drives the swinging base to swing downward relative to the fixed base. When the swinging base swings, it will also drive the three guide wheels to swing downward. Since the inner ring of the pressure ring abuts against the outer wall of the three guide wheels at the same time, the three downward swinging guide wheels will drive the pressure ring to move downward. The downward moving pressure ring will press creases into the cardboard. When cutting is required on the cardboard, the cutter extends outward relative to the outer ring of the pressure ring under the drive of the second driver, and then the first driver drives the swinging base to swing downward relative to the fixed base. The downward swinging base will drive the second driver and the cutter to move downward together, and the downward moving cutter will cut the cardboard. Compared to existing solutions where cutters and pressure rings are arranged laterally at intervals, the blade structure of this solution is more compact and smaller, which helps to reduce the size of the paper cutter. In addition, the blade structure of this solution is also equipped with a belt clamping mechanism. By loosening or clamping the belt, the distance between multiple blade structures can be adjusted under the drive of the belt, so that multiple blade structures can move to a preset position to work simultaneously. This achieves the goal of improving paper cutting efficiency by using multiple blade structures. By setting a belt clamping mechanism on the blade structure, it is not necessary to connect a drive module to each blade structure. The spacing adjustment of multiple blade structures can be achieved by a single belt. This not only helps to significantly reduce the structural volume of the paper cutter, but also reduces the production cost of the paper cutter. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a front view of the blade structure of a paper cutter provided in an embodiment of this application;

[0022] Figure 2 A reverse structural view of the blade structure of a paper cutter provided in an embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a paper cutter provided in an embodiment of this application.

[0024] Figure label:

[0025] 7. Tool structure; 70. Solenoid valve; 71. Fixed seat; 711. First seat body; 7111. Clamping part; 712. Second seat body; 713. Slider; 72. First driver; 73. Swing seat; 731. Protrusion; 74. Second driver; 75. Cutting blade; 76. Pressure ring; 77. Guide wheel; 771. Groove; 78. Belt clamping mechanism; 781. Third driver; 782. Clamping block; 79. Adapter; 80. Spring. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] It should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] Please refer to the following: Figure 1 and Figure 2This utility model embodiment provides a blade structure for a paper cutter, mainly including a fixed base 71, a first driver 72, a swing base 73, a second driver 74, a cutter 75, a pressure ring 76, and three guide wheels 77. One end of the first driver 72 is rotatably connected to the fixed base 71 at point P, and the end of the first driver 72 away from the fixed base 71 is rotatably connected to the swing base 73 at point Q. The end of the swing base 73 away from the first driver 72 is rotatably connected to the fixed base 71 at point M. All three guide wheels 77 are located inside the pressure ring 76 and are connected to the swing base 73. The outer wall of one of the guide wheels 77... The inner ring of the pressure ring 76 is elastically opposed to the outer ring of the pressure ring 76. The inner ring of the pressure ring 76 is supported by the elastic force of one of the guide wheels 77 and is opposed to the outer walls of the other two guide wheels 77. The inner ring of the pressure ring 76 can swing together with the swing base 73 by simultaneously opposing the outer walls of the three guide wheels 77. The cutter 75 is also set in the inner ring of the pressure ring 76, so that the cutter 75 occupies the internal space of the pressure ring 76 to save the overall volume of the cutter structure. The second driver 74 is connected to the swing base 73 and the cutter 75 respectively. The second driver 74 is used to drive the cutter 75 to extend outward or retract inward into the pressure ring 76 relative to the outer ring of the pressure ring 76.

[0032] Specifically, when it is necessary to crease the cardboard, the cutter 75 needs to retract into the pressure ring 76 under the drive of the second driver 74, and the first driver 72 drives the swing base 73 to swing downward relative to the fixed base 71. When the swing base 73 swings, it will drive the three guide wheels 77 to swing downward as well. Since the inner ring of the pressure ring 76 abuts against the outer wall of the three guide wheels 77 at the same time, the three downward swinging guide wheels 77 will drive the pressure ring 76 to move downward. The downward moving pressure ring 76 will crease the cardboard. When it is necessary to cut the cardboard, the cutter 75 needs to extend outward relative to the outer ring of the pressure ring 76 under the drive of the second driver 74, and then the first driver 72 drives the swing base 73 to swing downward relative to the fixed base 71. The downward swinging swing base 73 will drive the second driver 74 and the cutter 75 to move downward together. The downward moving cutter 75 will cut the cardboard. Compared with the existing scheme where the cutter 75 and pressure ring 76 are arranged laterally at intervals, the blade structure of this scheme is more compact and smaller, which is beneficial to reducing the size of the paper cutter.

[0033] Please refer to them again. Figure 1 and Figure 2The cutting tool structure of this solution is also equipped with a belt clamping mechanism 78 connected to the fixed base 71. The belt clamping mechanism 78 has a clamping state and a loosening state. By loosening or clamping the belt through the belt clamping mechanism 78, the distance between multiple cutting tool structures can be adjusted under the drive of the belt, so that multiple cutting tool structures can move to a preset position and work simultaneously, thereby achieving the purpose of improving paper cutting efficiency by using multiple cutting tool structures. By setting the belt clamping mechanism 78 on the cutting tool structure, it is not necessary to connect a driving module to each cutting tool structure. The distance adjustment of multiple cutting tool structures can be achieved by only one belt, which not only helps to further reduce the structural volume of the paper cutter, but also reduces the production cost of the paper cutter.

[0034] Please refer to them again. Figure 1 and Figure 2 The fixed base 71 specifically includes a first base body 711 and a second base body 712 fixedly connected. The first base body 711 extends laterally, and the second base body 712 extends longitudinally. One end of the first driver 72 is rotatably connected to the first base body 711 at point P. The end of the swing seat 73 away from the first driver 72 is rotatably connected to the second base body 712. Moreover, the first base body 711, the second base body 712, the swing seat 73, and the first driver 72 together form a quadrilateral structure. A portion of the aforementioned pressure ring 76 and the second driver 74 are housed within this quadrilateral structure. The aforementioned belt clamping mechanism 78 is connected between the first base body 711 and the pressure ring 76. By designing the fixed base 71 and adopting the above-described layout for other components, the overall blade structure can be made more compact, thereby further reducing the structural volume of the paper cutter.

[0035] Please refer to them again. Figure 1 and Figure 2The first base 711 is provided with a clamping part 7111. The belt clamping mechanism 78 includes a connected third driver 781 and a clamping block 782. The third driver 781 is preferably fixed on the first base 711. The third driver 781 and the clamping block 782 are connected. The third driver 781 is used to drive the clamping block 782 to move closer to or away from the clamping part 7111. When the clamping block 782 moves closer to the clamping part 7111, the clamping block 782 and the clamping part 7111 clamp the belt together, so that the cutter structure can be driven to the required position under the drive of the belt. When the clamping block 782 moves away from the clamping part 7111, the cutter structure will release the belt. The cutter structure in the released state cannot move with the belt. At this time, the belt can drive other cutter structures to move. That is, at this time, only one belt is needed to adjust the spacing between multiple sets of cutter structures, so as to achieve the purpose of greatly reducing the structural volume of the paper cutter while efficiently cutting the paper. Preferably, the clamping block 782 moves closer to or further away from the clamping part 7111 in the horizontal direction, so that the clamping block 782 and the clamping part 7111 clamp the belt in the horizontal direction. In this way, when multiple sets of tool structures are clamped on the belt, the belt will not be severely deformed due to the gravity of the multiple sets of tool structures. This helps to improve the motion accuracy of the multiple sets of tool structures under belt drive while allowing the belt to adjust the spacing of the multiple sets of tool structures. This solves the problem that the belt is severely pulled down and deformed due to the longitudinal clamping of multiple sets of tool structures, resulting in poor movement accuracy of the multiple sets of tool structures.

[0036] Please refer to them again. Figure 1 and Figure 2A slider 713 is fixed to the top of the first seat 711 facing away from the belt clamping mechanism 78. By setting the slider 713, which can slide along the external slide rail, the linear accuracy of the tool structure under belt drive can be improved. Preferably, in this scheme, a guide wheel 77 near the first seat 711 (i.e., the upper guide wheel 77) and the inner ring of the pressure ring 76 elastically abut against each other. The pressure ring 76 is subjected to the elastic force of the upper guide wheel 77 and abuts against the two lower guide wheels 77. To enable the upper guide wheel 77 to apply an upward elastic force to the pressure ring 76, this embodiment preferably fixes an adapter 79 to the upper guide wheel 77 and provides a protruding bump 731 on the swing base 73. A spring 80 connects the bump 731 and the adapter 79. One end of the spring 80 abuts against the bump 731, and the other end abuts against the adapter 79. After being subjected to the elastic force of the spring 80, the adapter 79 has an upward tendency to move towards the first base 711, so that the pressure ring 76 can be subjected to the upward elastic force applied by the upper guide wheel 77. To simplify the purpose of the three guide wheels 77 supporting the pressure ring 76 and guiding the pressure ring 76, the outer walls of the three guide wheels 77 in this design are all provided with recessed annular grooves 771, and the inner ring of the pressure ring 76 is simultaneously embedded in the grooves 771 of the three guide wheels 77.

[0037] Please refer to them again. Figure 1 and Figure 2 The first actuator 72, the second actuator 74, and the third actuator 781 mentioned above are preferably low-cost cylinders. Based on this, this solution also preferably has a solenoid valve 70 fixed on the fixed base 71. This solenoid valve 70 is used to connect to the first actuator 72, the second actuator 74, and the third actuator 781 through air pipes, so as to quickly realize the purpose of connecting or disconnecting the first actuator 72, the second actuator 74, and the third actuator 781 from the external air source.

[0038] Please see Figure 3 This embodiment also provides a paper cutter that utilizes multiple sets of the aforementioned blade structures 7. Specifically, it employs one set of blade structures 7 as a transversely arranged horizontal blade and multiple sets of blade structures 7 as longitudinally arranged vertical blades. The horizontal and vertical blades are arranged at a 90° angle to each other. A belt module can control the horizontal blades and multiple sets of vertical blades to move to designated positions. Through the combined use of the horizontal blades and multiple sets of vertical blades, the paper can be cut into a preset shape while simultaneously pressing creases into preset positions on the paper. By employing the aforementioned multiple sets of blade structures 7, it is advantageous to have a small structural volume while maintaining high paper cutting efficiency, thus meeting the procurement needs of paper cutting manufacturers that require high paper cutting efficiency but have limited indoor space.

[0039] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A blade structure for a paper cutter, characterized in that, It includes a fixed base, a first driver, a swing base, a second driver, a cutter, a pressure ring, and three guide wheels; The first driver is rotatably connected to the fixed base and the swing base respectively. The end of the swing base away from the first driver is rotatably connected to the fixed base. The three guide wheels are all located inside the pressure ring and are all connected to the swing base. The outer wall of one of the guide wheels elastically abuts against the inner ring of the pressure ring. The inner ring of the pressure ring abuts against the outer walls of the other two guide wheels due to the elastic force of one of the guide wheels. The cutter is also disposed on the inner ring of the pressure ring. The second driver is connected to the swing base and the cutter respectively, and is used to drive the cutter to extend outward or retract inward relative to the outer ring of the pressure ring. The tool structure also includes a belt clamping mechanism connected to the fixed base, the belt clamping mechanism having a clamped state of clamping the belt and a loosened state of loosening the belt.

2. The blade structure of the paper cutter as described in claim 1, characterized in that, The fixed base includes a first base body and a second base body connected together. One end of the first driver is rotatably connected to the first base body. The end of the swing seat away from the first driver is rotatably connected to the second base body. The first base body, the second base body, the swing seat and the first driver are arranged together to form a quadrilateral structure. A part of the pressure ring and the second driver are both housed within the quadrilateral structure. The belt clamping mechanism is connected between the first base body and the pressure ring.

3. The blade structure of the paper cutter as described in claim 2, characterized in that, The first base is provided with a clamping part, and the belt clamping mechanism includes a connected third driver and a clamping block. The third driver is fixed on the first base and connected to the clamping block, and is used to drive the clamping block to move closer to or away from the clamping part.

4. The blade structure of the paper cutter as described in claim 3, characterized in that, The clamping block moves closer to or further away from the clamping part in the horizontal direction.

5. The blade structure of the paper cutter as described in claim 2, characterized in that, A slider is fixed to the top of the first seat, which faces away from the belt clamping mechanism.

6. The blade structure of the paper cutter as described in claim 2, characterized in that, A guide wheel near the first seat body elastically abuts against the inner ring of the pressure ring.

7. The blade structure of the paper cutter as described in claim 6, characterized in that, An adapter is fixed on the guide wheel that is elastically opposed to the pressure ring. A protrusion is provided on the swing seat. A spring is connected between the protrusion and the adapter. The adapter has an upward tendency to move closer to the first seat body due to the elastic force of the spring.

8. The blade structure of the paper cutter as described in claim 1, characterized in that, The outer walls of the three guide wheels are provided with recessed grooves, and the inner ring of the pressure ring is simultaneously embedded in the grooves of the three guide wheels.

9. The blade structure of the paper cutter as described in claim 3, characterized in that, A solenoid valve is fixed on the mounting base. The first driver, the second driver, and the third driver are all cylinders. The solenoid valve is used to connect to the first driver, the second driver, and the third driver respectively through air pipes.

10. A paper cutter, characterized in that, The tool structure described in any one of claims 1 to 9 is adopted.

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