Accounting document punching device

Abstract

The utility model relates to an accounting document punching device, and belongs to the technical field of manual cutting. The accounting document punching device aims to solve the problems that an existing accounting document punching device is insufficient in cutting depth, a cutter is prone to deformation, and the transposition punching efficiency is low. According to the technical scheme, the accounting document punching device comprises a vertical cutting element, an annular belt-shaped cutter element is arranged at the top end of the vertical cutting element, the annular belt-shaped cutter element is composed of an annular belt-shaped cutter, a belt-shaped cutter and a shaft, the belt-shaped cutter is connected to the shaft along the axis, the track of a cutting edge shrinks in an arc shape, and the annular belt-shaped cutter and the shaft are coaxially symmetric; a clamping sliding way is arranged on the bottom plate, a clamping sliding block is arranged in the clamping sliding way, and a spring clamp is arranged on the upper surface of the clamping sliding block. And through the synergistic effect of the annular band-shaped cutter, the band-shaped cutter and the shaft, the cutting resistance is reduced, the cutting depth and efficiency are improved, and meanwhile the structural stability is enhanced. And one-time clamping and multi-time punching are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of manual cutting, and particularly relates to a punching device for accounting vouchers. Background Art

[0002] As a key document for recording economic transactions, accounting vouchers usually need to be bound into volumes by month or quarter. In order to make the vouchers neatly arranged and form an orderly whole, the method of cutting and punching is adopted for binding accounting vouchers. By using cutting and punching, the hole shape is regular and beautiful. However, when the thickness of accounting vouchers exceeds a certain threshold, such as 1 centimeter or 2 centimeters, the existing annular cutting and punching technology faces the following problems: as the punching depth increases, the contact area between the punching tool and the accounting vouchers gradually expands, resulting in a continuous increase in frictional resistance. When the frictional resistance reaches a certain critical value, punching tools such as annular cutting knives may be deformed or even damaged, seriously affecting the punching quality and the service life of the tools. During the punching process, the generated paper scraps are difficult to discharge in a timely manner. The paper scraps will accumulate in the holes, further occupying space, increasing the frictional resistance, and hindering the normal movement of the punching tool, making the punching process more difficult. The above problems jointly lead to the limitation of the punching depth of the existing technology for cutting and punching accounting vouchers, unable to meet the punching requirements of thicker vouchers, thus affecting the binding efficiency and quality of accounting vouchers.

[0003] During the process of punching in different positions, the clamping device needs to re-clamp the accounting vouchers, which not only reduces the use efficiency but also may cause misalignment of the already cut holes. Summary of the Utility Model

[0004] The utility model provides a punching device for accounting vouchers, aiming to solve at least one of the above problems.

[0005] To achieve the above technical purposes, the utility model adopts the following technical solutions:

[0006] A punching device for accounting vouchers includes a vertical cutting element. At the bottom end of the vertical cutting element, there is an annular belt-shaped knife element, which consists of an annular belt-shaped knife, a belt-shaped knife, and a shaft. A number of belt-shaped knives are connected to the shaft from the inner surface of the annular belt-shaped knife, and the belt-shaped knives are coplanar with the shaft. The annular belt-shaped knife and the shaft are axisymmetric. The bottom end of the guide shaft of the main body is coaxially connected to the top end of the vertical cutting element. On the bottom plate directly below the vertical cutting element, there is a bottom plate hole. On one side of the upper surface of the bottom plate, there is a cutting hole slideway that intersects perpendicularly with the upper end of the bottom plate hole. A cutting hole slider is placed in the cutting hole slideway, and a spring clip is arranged on the upper surface of the bottom plate.

[0007] Compared with the prior art, the utility model has at least the following beneficial effects:

[0008] 1. Reduce the cutting resistance and increase the cutting depth. The vertical cutting element provides a channel for the paper scraps to be excluded. At the same time, it provides space for the continuous feeding of the annular belt-shaped knife element, reducing the obstruction of the paper scraps to the cutting. The diameter of the annular belt-shaped knife being larger than the diameter of the shaft can effectively reduce the contact area between the vertical cutting element and the cutting hole, thereby reducing the frictional force generated between the vertical cutting element and the cutting hole, and further increasing the depth of the vertical cutting element for cutting and punching holes;

[0009] 2. The arc-shaped structure design of the belt-shaped knife, the connection design between the belt-shaped knife and the annular belt-shaped knife, and the axial symmetry distribution of the belt-shaped knife enhance the structural stability and bearing capacity of the vertical cutting element, ensuring the smoothness of the cutting process;

[0010] 3. Through the movement of the clamping slider, multiple punches can be achieved with one clamping. Description of the Drawings

[0011] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not constitute a limitation on the embodiments of the present invention. In the drawings:

[0012] Figure 1 is a schematic structural diagram of the punching device of the present invention;

[0013] Figure 2 is a schematic structural diagram of the annular belt-shaped knife element of the present invention;

[0014] Figure 3 is a schematic structural diagram of the cutting hole slider of the present invention;

[0015] Among them, 1. Body; 2. Guide shaft; 3. Shaft; 4. Annular belt-shaped knife element; 5. Spring clip; 6. Clamping slideway; 7. Base plate; 8. Clamping slider; 9. Positioning cone; 10. Base plate hole; 11. Cutting hole slider; 111. Tapered blind hole; 1111. First tapered blind hole; 1112. Second tapered blind hole; 1113. Third tapered blind hole; 1114. Fourth tapered blind hole; 1115. Fifth tapered blind hole; 112. Cutting hole; 1121. First cutting hole; 1122. Second cutting hole; 1123. Third cutting hole; 1124. Fourth cutting hole; 1125. Fifth cutting hole; 12. Cutting hole slideway; 31. Cone; 40. Annular belt-shaped knife; 41. First belt-shaped knife; 42. Second belt-shaped knife; 43. Third belt-shaped knife; 44. Fourth belt-shaped knife; 401. First annular cutting area; 402. Second annular cutting area; 403. Third annular cutting area; 404. Fourth annular cutting area. Detailed Embodiments

[0016] To make the objectives, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below in conjunction with embodiments. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model. Embodiment

[0017] As Figures 1 to 3 shown, the present utility model provides an accounting voucher punching device, which includes a vertical cutting element. At the bottom end of the vertical cutting element, there is an annular belt-shaped knife element 4. The annular belt-shaped knife element 4 is composed of an annular belt-shaped knife 40, belt-shaped knives and a shaft 3. A plurality of belt-shaped knives are connected to the shaft 3 from the inner surface of the annular belt-shaped knife 40, and the belt-shaped knives are coplanar with the shaft 3. The annular belt-shaped knife 40 and the shaft 3 are axisymmetric about the same axis; the bottom end of the guiding shaft 2 of the body 1 is coaxially connected to the top end of the vertical cutting element; a bottom plate hole 10 is provided on the bottom plate 7 directly below the vertical cutting element, a cutting hole slideway 12 is provided on one side of the upper surface of the bottom plate 7 and intersects vertically with the upper end of the bottom plate hole 10, a cutting hole slider 11 is placed in the cutting hole slideway 12, a clamping slideway 6 is provided on the bottom plate 7, a clamping slider 8 is placed in the clamping slideway 6, a spring clip 5 is provided on the upper surface of the clamping slider 8, and the upper surface of the clamping slider 8 and the upper surface of the bottom plate 7 are in the same plane.

[0018] To better achieve the objectives of the present utility model, as Figure 1 shown, the guiding shaft 2 of the body 1 is perpendicular to the upper surface of the bottom plate 7 and is guided by a double guiding cylinder to improve the precision of the vertical movement of the guiding shaft 2.

[0019] To better achieve the objectives of the present utility model, as Figure 1 shown, the bottom end of the guiding shaft 2 is threadedly connected to the top end of the vertical cutting element. When the punching diameter of the accounting voucher needs to be changed, it is convenient to replace the vertical cutting element that meets the requirements of its punching diameter; when the vertical cutting element is damaged, it is convenient to replace it with a new one.

[0020] To better achieve the objectives of the present utility model, as Figure 1 shown, the guiding shaft 2 is coaxial with the vertical cutting element, which is beneficial to ensuring the precision of the vertical movement of the vertical cutting element perpendicular to the upper surface of the bottom plate 7. The guiding shaft 2 and the vertical cutting element move up and down.

[0021] To better achieve the objectives of the present utility model, as Figure 1 shown, the vertical cutting element is composed of a shaft 3 and an annular belt-shaped knife element 4. The shaft 3 and the annular belt-shaped knife element 4 are integrated. The length of the shaft 3 provides support for the cutting depth of the vertical cutting element, and the annular belt-shaped knife element 4 realizes the cutting function of the vertical cutting element.

[0022] To better achieve the objectives of the present utility model, asFigure 2 As shown, the cross-section of the annular band knife 40 is circular-ring-shaped. Its symmetric structure helps to balance the applied force and the received force, facilitating the operations of feeding and retracting the knife. In the non-cutting-edge area, the wall thickness of the annular band knife 40 maintains a preset value, such as 1 mm or 2 mm. Its specific wall thickness is determined according to the size of the hole to be punched. In the cutting-edge area, the cross-section of the cutting edge of the annular band knife 40 is circular-ring-shaped from the starting end (near the shaft 3) to the terminal end (far from the shaft 3), and its area decreases from large to small. During this process, the outer diameter of the circular ring remains unchanged, while the inner diameter increases from small to large. This design improves the cutting ability of the annular band knife 40 and at the same time ensures that the annular band knife 40 is not easily deformed during use.

[0023] To better achieve the purpose of the present utility model, the terminal ends of the cutting edges of the annular band knife 40 are located on the same horizontal plane. During the cutting process, it is ensured that the edges of the cut circular holes and the edges of the cut circular paper scraps can be symmetrically separated.

[0024] To better achieve the purpose of the present utility model, the outer edge of the annular band knife 40 near the guiding shaft 2 adopts a rounded-corner design, facilitating the smooth withdrawal from the cutting hole after the cutting is completed.

[0025] To better achieve the purpose of the present utility model, as Figure 2 shown, the annular band knife element 4 includes the connection part of the annular band knife 40, the band knife and the shaft 3. The band knife includes a first band knife 41, a second band knife 42, a third band knife 43 and a fourth band knife 44. The first band knife 41, the second band knife 42, the third band knife 43 and the fourth band knife 44 connect the annular band knife 40 and the shaft 3. The number of the band knives is adjustable. For example, the number is 3 or 5. Among them, the first band knife 41 is coplanar with the shaft 3, the second band knife 42 is coplanar with the shaft 3, the third band knife 43 is coplanar with the shaft 3, and the fourth band knife 44 is coplanar with the shaft 3. The connection part of the annular band knife 40, the band knife and the shaft 3 together improves the structural stability and load-bearing capacity of the annular band knife element 4. The annular band knife element 4, the first band knife 41 and the second band knife 42 form a first annular cutting area 401, the annular band knife element 4, the second band knife 42 and the third band knife 43 form a second annular cutting area 402, the annular band knife element 4, the third band knife 43 and the fourth band knife 44 form a third annular cutting area 403, and the annular band knife element 4, the fourth band knife 44 and the first band knife 41 form a fourth annular cutting area 404. And in combination with Figure 1As shown, during the process of cutting accounting documents, the annular belt-shaped knife element 4 moves vertically downward toward the side of the bottom plate 7, and paper scraps enter the first annular cutting area 401, the second annular cutting area 402, the third annular cutting area 403 and the fourth annular cutting area 404. The moving direction of the paper scraps is opposite to the moving direction of the annular belt-shaped knife element 4. The diameter of the annular belt-shaped knife 40 is larger than the diameter of the shaft 3. The vertical cutting element provides a channel for the paper scraps to be removed. At the same time, it provides space for the annular belt-shaped knife element 4 to continuously advance the knife, thereby reducing the obstruction of the paper scraps to the cutting. The diameter of the annular belt-shaped knife 40 is larger than the diameter of the shaft 3, which can effectively reduce the contact area between the vertical cutting element and the cutting hole, thereby reducing the friction generated by the vertical cutting element and the cutting hole, thereby increasing the cutting and punching depth of the vertical cutting element.

[0026] In order to better achieve the purpose of this utility model, Figure 1 As shown, the shaft 3 is a cylindrical structure. On the one hand, the stability of the force-applying and force-receiving carriers is ensured, and on the other hand, the consistency of the size and shape of the paper scrap removal channel is maintained. For example, if the cross-section of the shaft 3 gradually increases from the bottom to the top, the passage for removing paper scraps will become smaller, resulting in an increase in the friction between the paper scraps and the cutting holes on the shaft.

[0027] In order to better achieve the purpose of this utility model, Figure 1 As shown, a cone 31 is provided at the top of the shaft 3, and the blade of the band knife extends to the cone 31. The cone 31 is used to position the annular band knife element 4 so that it remains stable and not easily deviated during the cutting process. The cone 31 also participates in the cutting of paper scraps.

[0028] In order to better achieve the purpose of the utility model, one side of the blade of the first belt-shaped knife 41, the second belt-shaped knife 42, the third belt-shaped knife 43 and the fourth belt-shaped knife 44 adopts an arc structure. The arc of the blade can be adjusted according to specific needs. The height value from the upper surface of the bottom plate 7 to the blade of the annular belt-shaped knife 40 is less than the height value to the blade of the first belt-shaped knife 41, the second belt-shaped knife 42, the third belt-shaped knife 43 and the fourth belt-shaped knife 44. In the specific cutting process, the blade of the annular belt-shaped knife 40 first contacts the accounting voucher. The belt-shaped knife includes the first belt-shaped knife 41, the second belt-shaped knife 42, the third belt-shaped knife 43 and the fourth belt-shaped knife 44, and the shape and structure of the belt-shaped knife should be consistent or as close to consistent as possible. The belt-shaped knife has the following two functions. The first function is that the arc structure of the belt-shaped knife enhances its strength and reduces the risk of breakage during use. The second function is that when cutting circular paper scraps, the pressure generated by the belt-shaped knife causes the paper scraps to deform. The arc-shaped structure of the ribbon knife creates a time difference effect during the cutting process, making the confetti easier to fluff up under the action of force.

[0029] To better achieve the object of the present utility model, the cutting edges of the first strip knife 41, the second strip knife 42, the third strip knife 43 and the fourth strip knife 44 extend to the cutting edge of the annular strip knife 40. The connection of their cutting edges ensures the structural continuity between the strip knife and the annular strip knife, thereby improving the overall stability of its cutting edge. During the cutting process, it is ensured that the circular paper scraps can be continuously cut, thereby improving the cutting efficiency and quality.

[0030] To better achieve the object of the present utility model, as Figure 1 shown, the lower clamping plate of the spring clip 5 is parallel to the upper surface of the bottom plate 7 ( Figure 1 not shown). In a specific case, the height of the upper surface of the bottom plate 7 is reduced within the movable range of the spring clip 5, and the height difference between the upper surface of the lower clamping plate of the spring clip 5 and the upper surface of the bottom plate 7 is reduced, so that the accounting vouchers are clamped more flatly. The spring clip 5 and the clamping slider 8 are integrally designed, and the clamping slider 8 can rotate and slide back and forth on the clamping slideway 6. There are several pairs of the spring clip 5 and the clamping slider 8, for example, 3 pairs or 4 pairs. By the movement of the clamping slider 8, rapid and multi-position clamping of the accounting vouchers can be achieved.

[0031] To better achieve the object of the present utility model, as Figure 1 shown, a bottom plate hole 10 is provided on the bottom plate 7 directly below the vertical cutting element. The bottom plate hole 10 penetrates the bottom plate 7, and the diameter of the bottom plate hole 10 is larger than the diameter of the annular strip knife 40. A cutting hole slideway 12 is provided on one side of the upper surface of the bottom plate 7 and intersects vertically with the upper end of the bottom plate hole 10. A cutting hole slider 11 is placed in the cutting hole slideway 12. The cross-section of the cutting hole slider 11 and the cutting hole slideway 12 becomes smaller from the bottom to the top. The cutting hole slider 11 is restricted to slide horizontally in the cutting hole slideway 12. In Figure 1Among them, the cutting hole slider 11 slides back and forth, and the upper surfaces of the cutting hole slider 11 and the bottom plate 7 are on the same plane. The purpose is that the cutting hole 112 provided on the cutting hole slider 11 and the bottom plate hole 10 can communicate, and the annular band knife 40 can penetrate through the cutting hole 112 and the bottom plate hole 10. The cutting hole 112 and the bottom plate hole 10 also serve as channels for discharging paper scraps. A conical blind hole 111 is provided on the bottom surface of the cutting hole slider 11, and several cutting holes 112 are provided on the cutting hole slider 11. For example, 5 or 6 cutting holes 112 are provided. The diameters of the cutting holes 112 are not the same. Their arrangement order can be from small to large or from large to small. The number of the conical blind holes 111 is the same as the number of the cutting holes 112. The number of the conical blind holes 111 corresponds to the positions of the cutting holes 112 one by one. The shapes and sizes of several conical blind holes 111 are the same. A through hole communicating with the cutting hole slideway 12 is provided on one side of the lower surface of the bottom plate 7. The positioning cone 9 is fixed on the lower surface of the bottom plate 7. The positioning cone 9 is matched with the conical blind hole 111 through the through hole to position the cutting hole 112, so as to realize the matching of the axis of the cutting hole 112 and the annular band knife element 4 (that is, the annular band knife element 4 can vertically penetrate through the cutting hole 112 downward, and the diameter of the cutting hole 112 is slightly larger than the diameter of the annular band knife element 4, such as 1 mm or 2 mm larger). It should be noted that the cutting hole slider 11 can slide horizontally in the cutting hole slideway 12 and achieve precise positioning through the cooperation of the conical blind hole 111 and the positioning cone 9; the inner edge at the top of the cutting hole 112 cooperates with the annular band knife 40 to perform the cutting task. Especially when cutting the last few pages of accounting vouchers, such as 3 pages or 5 pages, if the diameter of the cutting hole 112 is much larger than the diameter of the annular band knife 40, the cutting effect will be poor (the cutting is irregular). If the diameter of the cutting hole 112 is smaller than the diameter of the annular band knife 40, the blade of the annular band knife 40 is easily damaged.

[0032] To better achieve the purpose of the present utility model, as Figure 1 and Figure 3As shown, the conical blind hole 111 includes a first conical blind hole 1111, a second conical blind hole 1112, a third conical blind hole 1113, a fourth conical blind hole 1114, and a fifth conical blind hole 1115. The cutting holes 112 include a first cutting hole 1121, a second cutting hole 1122, a third cutting hole 1123, a fourth cutting hole 1124, and a fifth cutting hole 1125. The conical blind holes 111 and the cutting holes 112 correspond to each other in sequence. For example, the first conical blind hole 1111 and the first cutting hole 1121 correspond one by one. The first conical blind hole 1111 and the conical part at the top of the positioning cone 9 are completely fitted, realizing the positioning of the first conical blind hole 1111 by the positioning cone 9, and further realizing the positioning of the first cutting hole 1121. During operation, the spring of the positioning cone 9 pulls it upward as a whole. If the first cutting hole 1121 is to be replaced with the third cutting hole 1123, the positioning cone 9 is pulled down and the cutting hole slider 11 is moved to make the third conical blind hole 1113 cooperate with the positioning cone 9, thereby positioning the third cutting hole 1123. When replacing the vertical cutting element and its cutting diameter changes, one of the first cutting hole 1121, the second cutting hole 1122, the third cutting hole 1123, the fourth cutting hole 1124, and the fifth cutting hole 1125 is selected to match the replaced vertical cutting element.

[0033] Finally, it should also be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to the embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An accounting document punching device, comprising a vertical cutting element, characterized in that: An annular belt-shaped knife element (4) is arranged at the bottom end of the vertical cutting element. The annular belt-shaped knife element (4) is composed of an annular belt-shaped knife (40), a belt-shaped knife and a shaft (3). A plurality of belt-shaped knives are connected to the shaft (3) from the inner surface of the annular belt-shaped knife (40), and the belt-shaped knife and the shaft (3) are coaxially symmetrical. The bottom end of the guide shaft (2) of the body (1) is coaxially connected to the top end of the vertical cutting element. A bottom plate hole (10) is arranged on the bottom plate (7) directly below the vertical cutting element. A cutting hole slideway (12) is arranged on one side of the upper surface of the bottom plate (7) and perpendicularly intersects the upper end of the bottom plate hole (10). A cutting hole slider (11) is built into the cutting hole slideway (12). A clamping slideway (6) is arranged on the bottom plate (7). A clamping slider (8) is built into the clamping slideway (6). A spring clamp (5) is arranged on the upper surface of the clamping slider (8).

2. An accounting voucher punching device as claimed in claim 1, characterized in that: The cross section of the annular belt-shaped knife (40) is annular.

3. An accounting voucher punching device as claimed in claim 1, characterized in that: The ends of the blades of the annular belt-shaped knives (40) are located on the same horizontal plane.

4. An accounting voucher punching device as claimed in claim 1, characterized in that: The diameter of the annular belt-shaped knife (40) is greater than the diameter of the shaft (3).

5. The accounting voucher punching device according to claim 1, wherein the band-shaped knife comprises a first band-shaped knife (41), a second band-shaped knife (42), a third band-shaped knife (43) and a fourth band-shaped knife (44), characterized in that: The first belt-shaped knife (41), the second belt-shaped knife (42), the third belt-shaped knife (43) and the fourth belt-shaped knife (44) connect the annular belt-shaped knife (40) and the shaft (3).

6. An accounting voucher punching device as claimed in claim 1, characterized in that: The shaft (3) is of cylindrical structure.

7. An accounting voucher punching device as claimed in claim 5 or 6, characterized in that: A cone (31) is provided at the top end of the shaft (3), and the blade of the band-shaped knife extends to the cone (31).

8. An accounting voucher punching device as claimed in claim 5, characterized in that: One side of the blade of the first belt-shaped knife (41), the second belt-shaped knife (42), the third belt-shaped knife (43) and the fourth belt-shaped knife (44) adopts an arc-shaped structure.

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