Improved automatic paper cutter auxiliary device

Abstract

An improved automatic paper cutter auxiliary device comprises a positioning mandrel and a plurality of auxiliary paper cutting mechanisms, and each auxiliary paper cutting mechanism comprises two positioning rings, a support and a blade. The support comprises a support center, a balancing weight and a blade fixing part, the support center is provided with a through hole and is in clearance fit with the positioning mandrel, the balancing weight and the blade fixing part are two branches extending from the support center, the included angle is smaller than 90 degrees, and the included angle between the balancing weight and the blade is smaller than 90 degrees; the center of one support is clamped by the two positioning rings, and the two positioning rings are in clearance fit with the center of the corresponding support, so that the support can pivot around the positioning mandrel at a fixed position, and each group of auxiliary paper cutting mechanisms can enable the blade to cut paper under the self-weight action of the balancing weight; and the multiple groups of auxiliary paper cutting mechanisms are arranged along the positioning mandrel according to a preset distance. The gravity is adopted to apply pressure to the cutting edge, more than two sizes can be cut at the same time, the structure is simple, the size is small, the equipment cost is reduced, and the universality of the paper cutter is improved.

Description

Technical Field

[0001] The utility model relates to a paper cutter, in particular to an auxiliary device of the paper cutter. Background Art

[0002] In the prior art, a paper cutter is used for cutting paper, and includes a bottom plate, a slide rail, and a knife box sliding on the slide rail, and the knife box uses a blade to cut paper. However, ordinary paper cutters on the market can only cut one size at a time, which greatly affects the cutting efficiency. Some paper cutters that can cut two sizes at a time use circular blades, which are expensive and bulky, increasing the purchase cost and maintenance cost. Utility Model Content

[0003] The utility model aims to provide an improved automatic paper cutter auxiliary device to achieve cutting of more than two sizes, with a simple structure and a small volume, thereby reducing the purchase cost and maintenance cost and greatly improving the versatility of the paper cutter.

[0004] To achieve the above-mentioned purpose, the utility model provides an improved automatic paper cutter auxiliary device, which includes a positioning mandrel and multiple groups of auxiliary paper cutting mechanisms fixed on the positioning mandrel, wherein each group of auxiliary paper cutting mechanisms includes two positioning rings, a bracket and a blade; the bracket includes a bracket center, a counterweight block and a blade fixing part, the bracket center has a through hole, the through hole is clearance-matched with the positioning mandrel, the counterweight block and the blade fixing part are two branches extending from the bracket center, the counterweight block is an upper branch, the blade fixing part is a lower branch, and the included angle between the counterweight block and the blade fixing part is less than 90 degrees; the blade is fixed to the blade fixing part, and the included angle between the counterweight block and the blade is less than 90 degrees; the two positioning rings clamp the bracket center of one of the brackets, and the two positioning rings are also clearance-matched with the corresponding bracket center, so that the bracket can pivot around the positioning mandrel at a fixed position, so that each group of auxiliary paper cutting mechanisms can make the blade cut paper under the deadweight of the counterweight block; the multiple groups of auxiliary paper cutting mechanisms are arranged along the positioning mandrel at a predetermined distance.

[0005] As a preferred embodiment, the angle between the counterweight block and the blade fixing portion is 45 degrees, and the angle between the counterweight block and the blade is 45 degrees.

[0006] As a preferred embodiment, when the auxiliary paper cutting mechanism is in working state, the longitudinal axis of the counterweight block is located in the horizontal direction.

[0007] As a preferred embodiment, the positioning ring is fixed to the positioning mandrel by screws.

[0008] As a preferred embodiment, the blade fixing portion has a pressing plate, and the screw passes through the pressing plate and is screwed into the threaded hole of the blade fixing portion, so that the pressing plate clamps the blade.

[0009] As a preferred embodiment, the blade is fixed to the blade fixing portion by screws.

[0010] As a preferred embodiment, the blade is detachably fixed and embedded in the blade fixing portion.

[0011] As a preferred embodiment, the blade fixing portion has a buckle to fix the blade.

[0012] As a preferred embodiment, the blade fixing portion has a clamping groove and a transverse groove that allows the clamping groove to be easily bent and deformed, so as to fix the blade.

[0013] As a preferred embodiment, the blade is a 18×0.7MM thickened utility knife blade.

[0014] In the prior art, common paper cutters on the market can only cut one size at a time, which greatly affects the cutting efficiency. Some paper cutters can cut two sizes at a time, but they use circular blades, which are expensive and bulky, increasing the purchase cost and maintenance cost.

[0015] The existing technology mainly has the following defects:

[0016] 1. The efficiency of cutting only one size at a time is low

[0017] 2. Paper trimmers that can cut two sizes at a time are expensive and require high maintenance.

[0018] Compared with the existing technology, the method uses gravity to apply pressure to the blade, which can achieve cutting of more than two sizes at the same time. It has a simple structure and a small size, which greatly reduces the purchase cost and maintenance cost and greatly improves the versatility of the paper cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a side view schematic diagram of the improved automatic paper cutter auxiliary device according to an embodiment of the utility model.

[0020] Figure 2 It is a three-dimensional schematic diagram of an improved automatic paper cutter auxiliary device according to an embodiment of the utility model.

[0021] Summary of reference numerals: counterweight 1; positioning ring 2; blade fixing portion 3; blade 4; positioning spindle 5; fastening screw 6; positioning screw 7; bracket 8; bracket center 9 DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the improved automatic paper cutter auxiliary device of the present invention will be described with reference to the accompanying drawings.

[0023] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the contents disclosed in the claims and the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0024] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not necessarily drawn in the same proportion.

[0025] Figure 1 This is a side view schematic diagram of an improved automatic paper cutter auxiliary device according to an embodiment of the utility model. Figure 2 It is a three-dimensional schematic diagram of an improved automatic paper cutter auxiliary device according to an embodiment of the utility model.

[0026] The tooling of the utility model is an additional auxiliary device added on the basis of the original automatic cutting machine. It can be used after being installed on the paper cutter and is compatible with various types of paper cutters. Therefore, there is no need to repeatedly design the corresponding functions of the paper cutter, such as moving paper, etc.

[0027] The improved automatic paper cutter auxiliary device of this embodiment includes a positioning core shaft 5 and multiple groups of auxiliary paper cutting mechanisms fixed on the positioning core shaft 5. The multiple groups of auxiliary paper cutting mechanisms are arranged along the positioning core shaft 5 at a predetermined distance, and the distance between the multiple groups of auxiliary paper cutting mechanisms is set according to the needs of the paper cutter.

[0028] Each set of auxiliary paper cutting mechanisms includes two positioning rings 2 , a bracket 8 and a blade 4 .

[0029] The bracket 8 includes a bracket center 9, a counterweight 1 and a blade fixing portion 3. The bracket center 9 has a through hole, which cooperates with the positioning core shaft 5. The counterweight 1 and the blade fixing portion 3 are two branches extending from the bracket center 9, the counterweight 1 is an upper branch, and the blade fixing portion 3 is a lower branch.

[0030] One bracket 8 corresponds to two positioning rings 2, and the two positioning rings 2 clamp the bracket center 9 of one bracket 8. After the two positioning rings 2 clamp one bracket 8, the two positioning rings 2 are fixed on the positioning mandrel 5, thereby positioning the bracket 8; in this embodiment, the positioning ring 2 is fixed to the positioning mandrel 5 by using a positioning screw 7. There is a clearance fit between the through hole of the bracket center 9 and the positioning mandrel 5, and there is also a clearance fit between the positioning ring 2 and the corresponding bracket center 9. Therefore, after the bracket 8 is positioned, the bracket 8 can pivot around the positioning mandrel 5 at a fixed position, so that each set of auxiliary paper cutting mechanisms can make the blade 4 cut the paper under the weight of the counterweight block 1.

[0031] The included angle between the counterweight block 1 and the blade fixing portion 3 is less than 90 degrees. In this embodiment, the included angle between the counterweight block 1 and the blade fixing portion 3 is 45 degrees. Figure 1 and 2 As shown, the angle between the counterweight 1 and the blade fixing portion 3 is 45 degrees, the blade 4 is fixed to the blade fixing portion 3, and the angle between the counterweight 1 and the blade 4 is 45 degrees. When the auxiliary paper cutting mechanism is in working state, the longitudinal axis of the counterweight 1 is located in the horizontal direction.

[0032] Only when the angle between the counterweight 1 and the blade 4 is less than 90 degrees, can the tooling utilize the gravity of the counterweight 1 to apply a pressure to the blade 4 to simulate manual cutting, and multiple groups can be used together to achieve multi-size cutting. In this embodiment, the angle between the counterweight 1 and the blade 4 is 45 degrees. The angle between the counterweight 1 and the blade fixing portion 3 is less than 90 degrees, which ensures that the counterweight of the counterweight 1 will not be offset by a part of the blade fixing portion 3, and the angle between the counterweight 1 and the blade 4 is 45 degrees, which maximizes the role of the counterweight, and the cutting of the blade 4 is labor-saving. Other angles such as 30 degrees and 60 degrees are also acceptable, but the effect is not as good as 45 degrees.

[0033] The utility model preferably uses a utility knife blade, especially a 18×0.7MM thickened blade, which has high strength and is not easy to deform. During the entire cutting process, the blade 4 is stationary and the paper is moving, so the blade 4 will not deviate or bounce away, and can quickly and effectively cut papers of various sizes, and only the number of auxiliary paper cutting mechanisms and the position on the positioning core shaft 5 need to be adjusted.

[0034] When the tip of the utility knife is blunt, break off a piece and continue to use it. The utility knife blade is cheap and easy to replace, which is economical and practical.

[0035] The paper cutter matched with the utility model tooling mainly cuts thin paper, especially insulation paper between 0.15-0.35, and the sharp tip of the utility knife can cut the paper with only a small force. In the case of limited counterweight, the utility model tooling is not suitable for overly thick cardboard.

[0036] The blade 4 can be fixed to the blade fixing part 3 by screws. Figure 1 and 2 In the illustrated embodiment, the blade fixing portion 3 has a clamping groove, and the clamping groove has a transverse groove that is easily bent and deformed, so as to more conveniently fix the blade 4 when fastened with the fastening screw 6. In this embodiment, the axis of the blade 4 is consistent with the axis of the blade fixing portion, that is, they are coincident or parallel with a small spacing; of course, under the condition that the counterweight can play a pressurizing role, the axis of the blade 4 and the axis of the blade fixing portion may not be coincident, or even non-parallel.

[0037] The present invention is not limited to the method of fixing the blade in this embodiment, and a variety of methods of fixing the blade may be used, as long as the angle between the blade and the counterweight is less than 90 degrees. It is even better if the angle between the blade fixing portion and the counterweight is less than 90 degrees.

[0038] For example, the present invention can adopt a fixing method in which the blade 4 is detachably inserted into the blade fixing part 3, which can be realized by those skilled in the art using existing technologies. For another example, the blade fixing part can be provided with a buckle, so that the blade can be quickly fixed to the blade fixing part. For another example, the blade fixing part can have a separate pressing piece, and a screw passes through the pressing piece and is screwed into the threaded hole of the blade fixing part, so that the pressing piece clamps the blade.

[0039] The utility model uses gravity to apply pressure to the blade, can achieve cutting of more than two sizes, has a simple structure and a small volume, greatly reduces the purchase cost and maintenance cost, and greatly improves the versatility of the paper cutter.

[0040] The utility model adopts gravity to exert pressure, has a simple structure, and when cutting in multiple sizes, the individual toolings do not affect each other.

[0041] The above describes the implementation method of the improved automatic paper cutter auxiliary device of the utility model, and its purpose is to explain the spirit of the utility model. Please note that those skilled in the art can modify and combine the features of the above-mentioned implementation methods without departing from the spirit of the utility model. Therefore, the utility model is not limited to the above-mentioned implementation methods. The specific features of the improved automatic paper cutter auxiliary device, such as shape, size and position, can be specifically designed according to the effects of the features disclosed above, and these designs can be implemented by those skilled in the art. Moreover, the technical features disclosed above are not limited to the combination with other features that have been disclosed. Those skilled in the art can also make other combinations between the technical features according to the purpose of the utility model, so as to achieve the purpose of the utility model.

Claims

1. An improved automatic paper cutter auxiliary device, characterized in that: It includes a positioning core shaft and multiple sets of auxiliary paper cutting mechanisms fixed on the positioning core shaft, wherein: Each set of auxiliary paper cutting mechanisms includes two positioning rings, a bracket and a blade; The bracket includes a bracket center, a counterweight block and a blade fixing portion, the bracket center has a through hole, the through hole is gap-matched with the positioning mandrel, the counterweight block and the blade fixing portion are two branches extending from the bracket center, the counterweight block is an upper branch, the blade fixing portion is a lower branch, and the angle between the counterweight block and the blade fixing portion is less than 90 degrees; The blade is fixed to the blade fixing portion, and the included angle between the counterweight block and the blade is less than 90 degrees; The two positioning rings clamp the center of one of the brackets, and the two positioning rings and the corresponding bracket center are also clearance-matched, so that the bracket can pivot around the positioning core shaft at a fixed position, so that each set of auxiliary paper cutting mechanisms can make the blade cut paper under the deadweight of the counterweight block; The plurality of auxiliary paper cutting mechanisms are arranged along the positioning core shaft at a predetermined distance.

2. The improved automatic paper cutter auxiliary device according to claim 1 is characterized in that: The included angle between the counterweight block and the blade fixing portion is 45 degrees, and the included angle between the counterweight block and the blade is 45 degrees.

3. The improved automatic paper cutter auxiliary device according to claim 1 is characterized in that: When the auxiliary paper cutting mechanism is in working state, the longitudinal axis of the counterweight block is located in the horizontal direction.

4. The improved automatic paper cutter auxiliary device according to claim 1, characterized in that: The positioning ring is fixed on the positioning mandrel by screws.

5. The improved automatic paper cutter auxiliary device according to claim 1, characterized in that: The blade is fixed to the blade fixing portion by a screw.

6. The improved automatic paper cutter auxiliary device according to claim 5, characterized in that: The blade fixing portion has a pressing sheet, and the screw passes through the pressing sheet and is screwed into the threaded hole of the blade fixing portion, so that the pressing sheet clamps the blade.

7. The improved automatic paper cutter auxiliary device according to claim 1, characterized in that: The blade is detachably fixed and inserted into the blade fixing portion.

8. The improved automatic paper cutter auxiliary device according to claim 1, characterized in that: The blade fixing portion is provided with a buckle to fix the blade.

9. The improved automatic paper cutter auxiliary device according to claim 1, characterized in that: The blade fixing portion has a clamping groove and a transverse groove which allows the clamping groove to be easily bent and deformed, so as to fix the blade.

10. The improved automatic paper cutter auxiliary device according to any one of claims 1 to 9, characterized in that: The blade is a 18×0.7MM thickened utility knife blade.

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