Packaging paper cutter

Abstract

The utility model provides a packaging paper cutting device which comprises a shell with an axial penetrating hollow structure, an open groove from one end to the other end is formed in the side wall of the shell in the axial direction of the shell, a groove extending in the axial direction is further formed in the side edge of one side, corresponding to the open groove, of the shell, and the opening groove is communicated with the open groove. A cutting knife is fixedly mounted on the inner bottom wall of the groove; the side wall of the shell further comprises a supporting plane arranged in the axial direction, and the supporting plane can serve as a contact face of the paper cutter and the containing plane and is used for positioning, bearing and supporting in the paper cutting process and assisting the paper cutter in linear sliding.

Description

Technical Field

[0001] This utility model relates to the field of cutting technology, and in particular to a paper cutter for packaging paper. Background Technology

[0002] When cutting rolls of wrapping paper, scissors or utility knives are generally used. However, it's difficult to cut the rolls of wrapping paper in a straight line using scissors or utility knives, hence the emergence of wrapping paper cutters on the market. However, most wrapping paper cutters on the market have a simple cylindrical structure, resulting in poor cutting quality, unreliable success in cutting the wrapping paper, and uneven cut surfaces. Therefore, a wrapping paper cutter is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a name that solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A packaging paper cutter includes a housing with a hollow structure extending axially. The side wall of the housing has an opening groove extending from one end to the other along its axial direction. A groove extending axially is also provided on one side edge of the housing corresponding to the opening groove. A cutting blade is fixedly installed on the inner bottom wall of the groove. The side wall of the housing also includes an axially arranged support plane. The support plane is the contact surface between the paper cutter and the placement plane, and is used for positioning and bearing support during paper cutting and to assist the linear sliding of the paper cutter.

[0006] Furthermore, the supporting plane consists of two guide rails spaced apart along its axial direction. The two guide rails are parallel to the axis of the housing. When the paper cutter is used, the two guide rails form a contact plane on the placement plane. The side wall of the housing is also provided with a gripping part. When cutting paper, the pressure applied by the gripping part is perpendicular to the contact supporting plane formed by the parallel guide rails, so as to keep the paper cutter cutting in a straight line.

[0007] Furthermore, the plane formed by the axial center lines of the two parallel guide rails and the axial center line of the grip can pass through the axis of the housing; the center of gravity of the grip is perpendicular to the axial center line of the two parallel guide rails.

[0008] Furthermore, the opening slot communicates with the groove, and the cutter also includes a vertical plate. The vertical plate is fixedly installed on the side wall of the groove near the opening slot. The upper end of the vertical plate is inclined from the opening slot towards the groove. The vertical plate is used to bend the introduced paper into an arc shape so that the paper passing through the cut position achieves maximum stiffness and tension.

[0009] Furthermore, it also includes a fixing plate, which is externally disposed on the side of the groove near the opening slot.

[0010] Furthermore, the cutting edge of the cutting blade is inclinedly disposed within the groove.

[0011] Furthermore, the diamond-shaped inlet is formed by the same slope of the cutting blade and the fixing plate and the two sides of the groove.

[0012] Furthermore, the housing includes a first housing, which is a planar structure or a polygonal track structure.

[0013] Furthermore, the housing also includes a second housing whose shape matches the shape of the roll of packaging paper.

[0014] Furthermore, a limiting ramp is provided on the inner wall of the housing between the parallel guide rails, the limiting ramp being used to ensure that the roll of packaging paper is close to the cutting blade.

[0015] Analysis reveals that this utility model discloses a packaging paper cutter. A support plane is provided on the outer wall of the housing. This support plane serves as the contact surface between the cutter and the placement plane, providing positioning and load-bearing support during cutting and assisting in the linear sliding of the cutter. It is coordinated with a gripping part symmetrically arranged at the top of the support plane. The pressure applied by the gripping part is perpendicular to the contact plane formed by the parallel guide rails, ensuring the cutter maintains a linear cut during cutting.

[0016] This packaging paper cutter uses a limiting ramp, which, in conjunction with a fixed plate, maximizes the tension of the roll packaging paper, causing it to impact the blade and generate maximum lateral force. It can also perform a secondary ramp cut on paper that hasn't been cut initially, ensuring the roll packaging paper is cut completely. With the help of parallel guide rails, the cut on the roll packaging paper is a straight line, flat and aesthetically pleasing. The limiting ramp ensures that roll packaging paper of different diameters remains close to the blade during cutting, achieving optimal cutting results.

[0017] The technical solution of this utility model reduces the difficulty of operation, greatly reduces replacement time and workload, and saves costs. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a packaging paper cutter;

[0020] Figure 2A three-dimensional structural diagram of a packaging paper cutter;

[0021] Figure 3 A top view of the packaging paper cutter.

[0022] Figure 4 A three-dimensional structural diagram of a packaging paper cutter;

[0023] Figure 5 A three-dimensional structural diagram of a packaging paper cutter;

[0024] Figure 6 for Figure 5 An enlarged schematic diagram of the structure of area A in a packaging paper cutter;

[0025] Figure 7 A three-dimensional structural diagram of a packaging paper cutter;

[0026] Figure 8 for Figure 7 A magnified schematic diagram of the structure of section B of the packaging paper cutter;

[0027] Figure 9 A schematic diagram of another embodiment of a packaging paper cutter;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1-Shell; 11-First shell; 12-Second shell; 13-Limiting ramp; 14-Supporting plane; 2-Handle; 3-Opening slot; 4-Cut blade; 5-Rhomboid placement port; 6-Fixing plate; 7-Upright plate; 8-Groove. Detailed Implementation

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0031] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0032] The accompanying drawings illustrate one or more examples of the present invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the present invention. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0033] like Figures 1-9 As shown, a packaging paper cutter according to an embodiment of the present invention includes a housing 1 and a cutting blade 4. The housing 1 has a hollow structure that extends vertically through the casing. The housing 1 includes a first housing 11 and a second housing 12. The shape of the second housing 12 matches the shape of the roll packaging paper and is usually a hollow cylinder. The housing 1 has a vertically extending slot 3, which is provided along the side wall of the housing 1 from one end to the other along its axial direction. A groove 8 extending vertically is provided on one side of the slot 3, and the slot 3 communicates with the groove 8. The cutting blade 4 is fixedly mounted on the inner bottom wall of the groove 8. The side wall of the housing 1 also includes an axially arranged support plane 14, which can serve as the contact surface between the paper cutter and the placement plane. It is used for positioning and bearing support during paper cutting and to assist the linear sliding of the paper cutter.

[0034] like Figure 1 As shown, the first housing 11 is a polygonal track structure, or the first housing 11 includes an outwardly protruding support plane 14 on its outer wall, or as... Figure 9As shown, the two parallel guide rail support planes 14 parallel to the central axis of the housing 1 can be two guide rails spaced apart along their axial direction. The two guide rails are arranged parallel to the axis of the housing. When using the paper cutter, the two guide rails form a contact support plane 14 on the placement plane. The side wall of the housing is also provided with a gripping part 2. When cutting paper, the pressure applied by the gripping part 2 is perpendicular to the contact support plane 14 formed by the parallel guide rails, so as to keep the paper cutter making a straight cut when cutting.

[0035] A diamond-shaped inlet 5 is located on one side of the cutter 4; a fixing plate 6 is fixedly installed on the side of the first housing 11 near the opening groove 3. The fixing plate 6 is used to bend the introduced paper into an arc shape and form a diamond-shaped inlet with the cutter 4 so that the paper passing through the cut position can further achieve maximum stiffness and tension.

[0036] A support plane 14 is provided on the first housing 11, and a limiting ramp 13 is provided between the support planes 14. The limiting ramp 13 is used to make the roll of packaging paper close to the cutting blade 4.

[0037] In this embodiment of the invention, the roll of packaging paper is introduced into the housing 1. The fixing plate 6 bends the roll of packaging paper into an n-arch shape through an arc, so that the roll of packaging paper reaches the maximum tension and impacts the cutting edge of the cutting blade 4 at a 40-degree angle, forming the maximum lateral force. The diamond-shaped indentation 5 is to allow the roll of packaging paper to be bent into an n-arch shape again in conjunction with the first housing 11 if it is not cut immediately. The paper then crawls along the slope of the diamond-shaped indentation 5, and the cutting blade 4 continues to cut the roll of packaging paper until it is cut. By setting the first housing 11 of the housing 1 as a polygonal track structure, and matching the shape of the second housing 12 of the housing 1 with the shape of the roll of packaging paper, the roll of packaging paper can be held in place and fit the cut, so that the roll of packaging paper reaches the maximum tension and achieves the best cutting effect.

[0038] The support plane 14 is shaped like a sled and can slide along the roll of packaging paper in a straight line. Since the paper roll is straight, the support plane 14 will only slide along a straight line, thus making the cut surface of the paper a straight line. The limiting ramp 13 is inclined from the junction of the first housing 11 and the second housing 12 towards the opening slot 3 near the side wall of the second housing 12. Since the roll of packaging paper is getting smaller and smaller, under the action of the limiting ramp 13, rolls of packaging paper of different diameters (the diameter of the roll of packaging paper is less than 5.5cm) can always be close to the blade when cutting, achieving the best cutting effect.

[0039] like Figure 5 , Figure 6 and Figure 8As shown, in a preferred embodiment of the present invention, the upper end of the fixing plate 6 is inclined from the opening groove 3 to the groove 8.

[0040] As a preferred embodiment of the present invention, it also includes a vertical plate 7, which is fixedly disposed on the side wall of the groove 8 near the opening groove 3, and the upper end of the vertical plate 7 is inclined from the opening groove 3 toward the groove 8.

[0041] In this embodiment of the utility model, the upright plate 7 can force the introduced roll paper to bend into an arc shape. The upright plate 7 provides to press the roll paper down towards the center of the housing, while the cutting blade 4 can pull the paper upward in the opposite direction. The two interacting forces enable the paper passing through the cutting position to achieve maximum stiffness and tension, so that the roll packaging paper can hit the blade of the cutting blade 4 and form the maximum lateral force to achieve cutting.

[0042] like Figure 1 and Figure 9 As shown, in a preferred embodiment of the present invention, the cutting blade 4 is inclinedly disposed in the groove 8.

[0043] In this embodiment of the invention, the blade of the cutting blade 4 is inclined to facilitate cutting the roll packaging paper.

[0044] In this embodiment of the invention, when using the paper cutter, place it close to the table and push it along the direction of the roll of paper to easily and perfectly cut the roll of paper.

[0045] like Figure 1 As shown, in a preferred embodiment of the present invention, a handle 2 is fixedly connected to the housing 1.

[0046] In this embodiment of the utility model, when in use, the handle 2 is held by hand to push the packaging paper cutter, which is convenient to use.

[0047] The working principle of this utility model is as follows:

[0048] Before cutting, a single layer of paper is removed from the paper roll to be cut and passed through the opening slot 3. The paper is then positioned parallel to the other side of the opening slot 3 without the cutting blade installed to determine the required cutting width. After determination, the paper roll can be axially pulled away and then placed back into the groove 8 for paper cutting.

[0049] This paper cutter guides the roll of packaging paper into the housing 1, bends it into an n-arch shape to maximize tension, and then strikes the cutting blade 4 at a 40-degree angle, creating maximum lateral force. The diamond-shaped inlet 5 allows the paper to be bent into an n-arch shape again, in conjunction with the upright plate 7 and the first housing 11, if it is not cut immediately. The paper then crawls along the slope of the diamond-shaped inlet 5, and the cutting blade 4 continues to cut the paper until it is cut. The support plane 14 ensures that the cut surface of the paper is a straight line. The limiting ramp 13 ensures that rolls of packaging paper of different diameters remain close to the blade during cutting, achieving the best cutting effect.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A packaging paper cutter, characterized in that, The device includes a housing (1) with an axially penetrating hollow structure. The side wall of the housing (1) is provided with an opening groove (3) extending from one end to the other along its axial direction. A groove (8) extending axially is also provided on one side of the housing (1) corresponding to the opening groove (3). A cutting blade (4) is fixedly installed on the inner bottom wall of the groove (8). The side wall of the housing (1) also includes an axially arranged support plane (14). The support plane (14) is the contact surface between the paper cutter and the placement plane, and is used for positioning and bearing support during paper cutting and to assist the paper cutter in linear sliding.

2. The packaging paper cutter according to claim 1, characterized in that, The supporting plane (14) consists of two guide rails spaced apart along its axial direction. The two guide rails are parallel to the axis of the housing. When the paper cutter is used, the two guide rails form a contact plane on the placement plane. The side wall of the housing (1) is also provided with a gripping part (2). When cutting paper, the pressure applied by the gripping part (2) is perpendicular to the contact support plane (14) formed by the parallel guide rail, so as to keep the paper cutter cutting in a straight line.

3. The packaging paper cutter according to claim 2, characterized in that, The plane formed by the axial center lines of the two parallel guide rails and the axial center line of the grip (2) can pass through the axis of the housing (1); The center of gravity of the grip (2) is perpendicular to the axial symmetry center line between the two parallel guide rails.

4. The packaging paper cutter according to claim 1, characterized in that, The opening groove (3) communicates with the groove (8). The cutter also includes a vertical plate (7). The vertical plate (7) is fixedly installed on the side wall of the groove (8) near the opening groove (3). The upper end of the vertical plate (7) is inclined from the opening groove (3) to the groove (8). The vertical plate (7) is used to bend the introduced paper into an arc shape so that the paper passing through the cut position achieves maximum stiffness and tension.

5. The packaging paper cutter according to claim 1 or 4, characterized in that, It also includes a fixing plate (6), which is externally disposed on the side of the groove (8) near the opening groove (3).

6. The packaging paper cutter according to claim 1, characterized in that, The cutting blade (4) is inclined and set in the groove (8).

7. The packaging paper cutter according to claim 5, characterized in that, The diamond-shaped inlet (5) is formed by the same slope of the cutting blade (4) and the fixing plate (6) and the two sides of the groove (8).

8. The packaging paper cutter according to claim 1, characterized in that, The housing (1) includes a first housing (11), which is a planar structure with an externally provided parallel guide rail or polygonal track structure.

9. The packaging paper cutter according to claim 5, characterized in that, The housing (1) also includes a second housing (12), the shape of which matches the shape of the roll of packaging paper.

10. The packaging paper cutter according to claim 2, characterized in that, A limiting ramp (13) is provided on the inner wall of the housing (1) between the parallel guide rails, the limiting ramp (13) being used to make the roll packaging paper close to the cutting blade (4).

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