Power anti-crevasse knife mechanism of three-side knife

Abstract

The utility model discloses a three-side knife power anti-crevasse knife mechanism which comprises a power anti-crevasse knife mechanism body located on one side of an operation platform of a three-side knife paper cutter, and the power anti-crevasse knife mechanism body comprises an anti-explosion knife holder connected with the operation platform. The anti-explosion cutter holder is connected with a first blade part and a second blade part which are the same in structure, are oppositely arranged and are both connected with anti-explosion cutters, the first blade part comprises a cross arm locking block which is connected with the anti-explosion cutter holder and is fixedly provided with a first fixing plate and a second fixing plate, and the first fixing plate is connected with a power piece; the output end of the power piece is connected with a sliding plate, the back face of the sliding plate is fixedly connected with a guide rail sliding block slidably connected with the second fixing plate, and the end, away from the power piece, of the sliding plate is connected to the anti-explosion knife. According to the utility model, the phenomenon of corner explosion of the rounded corners of the book back can be effectively avoided, and the cutting quality and the qualification rate of books are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-sided knife book trimmers, in particular to a three-sided knife power anti-crack knife mechanism. Background Art

[0002] In the printing industry, after the book is bound, its three sides need to be trimmed neatly to keep the appearance of the book in uniform size. At present, the trimming in the post-printing binding process is mostly done by a three-sided knife trimmer, which can cut off the three flippable sides of the bound book (i.e. the non-bound side of the book) to ensure the consistency of the length and width of the book. When using this three-sided trimmer, place the book horizontally on the operating platform and press it tightly to position it. Then use the two side knives of the three-sided knife trimmer to trim the length of the book, and use the front knife to trim the width of the book. The other side opposite to the cutting side of the front knife is the binding side, which is commonly known as the book spine.

[0003] However, during the cutting process of the three-sided knife book trimmer, the book back may be damaged at the cutting corners after cutting due to insufficient paper pressing force of the clamping mechanism on books of different thicknesses, improper cutting method when using the paper cutter, or blunt blades after long-term use. This is commonly known as "corner bursting", which leads to poor cutting quality of the book and even the phenomenon of the book being cut and scrapped. Utility Model Content

[0004] In order to solve the technical problem in the prior art that the book spine will be damaged at the cut corners after cutting, resulting in poor cutting quality of the book or even the book being cut and scrapped, the utility model provides the following technical solution.

[0005] The utility model discloses a three-sided knife power anti-breakage knife mechanism, comprising a power anti-breakage knife mechanism body located at one side of an operating platform of a three-sided knife paper cutter, the power anti-breakage knife mechanism body comprising an explosion-proof knife holder connected to the operating platform, the explosion-proof knife holder is connected with a first blade component and a second blade component having the same structure and being relatively arranged, both of which are connected to the explosion-proof knife, the first blade component comprising a cross-bracing locking block connected to the explosion-proof knife holder and fixed with a first fixed plate and a second fixed plate, the first fixed plate being connected to a power member, the output end of the power member being connected to a sliding plate, the back of the sliding plate being fixedly connected to a guide rail slider slidably connected to the second fixed plate, and the end of the sliding plate away from the power member is connected to the explosion-proof knife.

[0006] As a further technical solution, the sliding plate is connected to a transverse adjustment block at one end away from the power part, a longitudinal fixing block is fixed at the lower end of the transverse adjustment block, a longitudinal adjustment block is connected to the upper end of the longitudinal fixing block, and the longitudinal adjustment block is connected to the explosion-proof knife.

[0007] As a further technical solution, the output end of the power member is connected to a spherical bearing, and the spherical bearing is connected to a push rod fixing block located at one side of the sliding plate.

[0008] As a further technical solution, the power component is one of a pneumatic cylinder, a hydraulic cylinder or a servo electric cylinder.

[0009] As a further technical solution, both ends of the explosion-proof knife holder are provided with movable ends respectively, and the movable ends are connected to the operating platform.

[0010] As a further technical solution, the explosion-proof knife holder is provided with two detachable connecting blocks which are arranged opposite to each other, and the two connecting blocks are respectively connected to the first blade component and the second blade component.

[0011] As a further technical solution, a first slider baffle and a second slider baffle for limiting the position of the guide rail slider are respectively provided on both sides of the sliding plate.

[0012] The beneficial effect of the utility model is that the three-sided knife power anti-break knife mechanism of the utility model is arranged on one side of the operating platform of the three-sided knife paper cutter. During the cutting process of the three-sided knife paper cutter, the explosion-proof knives of the first blade component and the second blade component which are relatively arranged are positioned first. After the pressing mechanism fixes the book, the explosion-proof knife cuts inward to a specified depth under the thrust of the power component, so that the explosion-proof knife is completely flush with the back of the book. After that, the two side knives of the three-sided knife paper cutter cut both sides of the book, which can effectively avoid the explosion of the rounded corners of the book back and improve the cutting quality and qualified rate of the book. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the utility model installed on a three-sided knife paper cutter;

[0014] Figure 2 It is a structural schematic diagram of the three-sided knife power anti-break knife mechanism of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the first blade component of the utility model;

[0016] In the figure: 100-three-sided knife paper cutter; 200-power anti-break knife mechanism body; 1-explosion-proof knife holder; 101-moving end; 102-connecting block; 2-first blade component; 3-second blade component; 4-cross-bracing locking block; 401-locking screw; 402-first fixed plate; 403-second fixed plate; 5-power member; 6-spherical bearing; 7-first slider baffle; 8-push rod fixing block; 9-lateral adjustment block; 10-longitudinal fixing block; 11-longitudinal adjustment block; 12-explosion-proof knife; 13-second slider baffle; 14-guide slider; 15-sliding plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0018] In the description of the present invention, it should be understood that the terms "upper" and "lower" are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0019] like Figure 1 and Figure 2 As shown, the utility model is a three-sided knife power anti-break knife mechanism, including a power anti-break knife mechanism body 200 located on one side of the operating platform of the three-sided knife paper cutter 100. Specifically, the power anti-break knife mechanism body 200 is arranged on one side of the operating platform, on one side of the two side knives, and is arranged opposite to the front knife. That is, when the book is fixed by the pressing mechanism, the power anti-break knife mechanism body 200 is located on the back side of the book.

[0020] like Figure 2 and Figure 3 As shown, in a preferred embodiment, the power anti-break knife mechanism body 200 includes an explosion-proof knife holder 1 connected to the operating platform, the explosion-proof knife holder 1 is connected to a first blade component 2 and a second blade component 3 of the same structure and relatively arranged, the first blade component 2 and the second blade component 3 are both connected to an explosion-proof knife 12, and the two explosion-proof knives 12 can position the book and partially cut it.

[0021] In a preferred embodiment, the two ends of the explosion-proof knife holder 1 are respectively provided with a moving end 101, and the moving end 101 is connected to the operating platform. At this time, the operating platform can be provided with a power driving component to drive the moving end 101, so that the moving end 101 drives the explosion-proof knife holder 1 to move toward the direction of the book, and then the explosion-proof knife 12 positions the book. Of course, the moving end 101 is not necessary, and the explosion-proof knife 12 can also be driven to move and position the book by only relying on the power member 5 of the first blade component 2 and the second blade component 3.

[0022] In a preferred embodiment, the explosion-proof knife holder 1 is provided with two relatively arranged detachable connecting blocks 102, and the two connecting blocks 102 are respectively connected to the first blade component 2 and the second blade component 3, thereby, the distance between the two detachable connecting blocks 102 can be adjusted, so that the first blade component 2 and the second blade component 3 can be suitable for books of more sizes.

[0023] In a preferred embodiment, since the first blade component 2 and the second blade component 3 are arranged opposite to each other and have the same structure, only the first blade component 2 is described in detail below. The first blade component 2 includes a cross brace locking block 4 connected to the explosion-proof knife holder 1, and the cross brace locking block 4 is connected to the connecting block 102 through a locking screw 401. The cross brace locking block 4 is fixed with a first fixing plate 402 and a second fixing plate 403, and the first fixing plate 402 and the second fixing plate 403 are close to each other and in a vertical state.

[0024] The first fixed plate 402 is connected to a power member 5, and the output end of the power member 5 is connected to a sliding plate 15. Specifically, the output end of the power member 5 is connected to a spherical bearing 6, and the spherical bearing 6 is connected to a push rod fixing block 8 located on one side of the sliding plate 15, and the horizontal movement of the sliding plate 15 is driven by the power member 5. The power member 5 can be a cylinder or a hydraulic cylinder. Of course, the power member 5 can also be a servo electric cylinder, and the utility model does not specifically limit this. The second fixed plate 403 is slidably connected to a guide rail slider 14, and the guide rail slider 14 is fixedly connected to the back of the sliding plate 15. In the process of the power member 5 driving the sliding plate 15 to move horizontally, the guide rail slider 14 slides relative to the second fixed plate 403, which can ensure the stability of the sliding of the sliding plate 15. Preferably, a first slider baffle 7 and a second slider baffle 13 are respectively provided on both sides of the sliding plate 15 to limit the guide rail slider 14.

[0025] In a preferred embodiment, the end of the sliding plate 15 away from the power member 5 is connected to the explosion-proof knife 12, and the sliding plate 15 can drive the explosion-proof knife 12 to move toward the book to position the book and cut the spine. Specifically, the end of the sliding plate 15 away from the power member 5 is connected to a transverse adjustment block 9, and a longitudinal fixing block 10 is fixed at the lower end of the transverse adjustment block 9. The upper end of the longitudinal fixing block 10 is connected to a longitudinal adjustment block 11, and the longitudinal adjustment block 11 is connected to the explosion-proof knife 12. The power member 5 can drive the explosion-proof knife 12 to move twice, the first time to position the book, and the second time to cut; of course, if the first positioning of the book is driven by the mobile end 101, the power member 5 only moves once to cut the book.

[0026] When the utility model is in use, first, the two explosion-proof knives 12 move to complete the first positioning of the book, and the pressing mechanism of the three-sided knife paper cutter positions and presses the book for the second time. After that, the power member 5 drives the sliding plate 15 to move toward the book, and the two explosion-proof knives 12 cut into the book to a specified depth under the thrust of the sliding plate 15 moving forward, so that the two explosion-proof knives 12 are completely flush with the back of the book, and then the two side knives of the three-sided knife paper cutter cut the two sides of the book, thereby preventing the occurrence of corner explosion.

[0027] The preferred specific implementation modes and embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation modes and embodiments, and various changes or equivalent substitutions can be made within the knowledge scope of those skilled in the art without departing from the concept of the utility model. Therefore, the utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the utility model.

Claims

1. A three-sided knife power anti-crack knife mechanism, comprising a power anti-crack knife mechanism body (200) located on one side of an operating platform of a three-sided knife paper cutter (100), characterized in that: The power anti-break knife mechanism body (200) comprises an explosion-proof knife holder (1) connected to an operating platform, the explosion-proof knife holder (1) is connected to a first blade component (2) and a second blade component (3) which are identical in structure and arranged relatively to each other and are both connected to an explosion-proof knife (12), the first blade component (2) comprises a cross-bracing locking block (4) connected to the explosion-proof knife holder (1) and fixed with a first fixing plate (402) and a second fixing plate (403), the first fixing plate (402) is connected to a power member (5), the output end of the power member (5) is connected to a sliding plate (15), the back of the sliding plate (15) is fixedly connected to a guide rail slider (14) which is slidably connected to the second fixing plate (403), and the end of the sliding plate (15) away from the power member (5) is connected to the explosion-proof knife (12).

2. The three-sided power anti-break knife mechanism according to claim 1 is characterized by: The end of the sliding plate (15) away from the power member (5) is connected to a transverse adjustment block (9), a longitudinal fixing block (10) is fixedly provided at the lower end of the transverse adjustment block (9), a longitudinal adjustment block (11) is connected to the upper end of the longitudinal fixing block (10), and the longitudinal adjustment block (11) is connected to the explosion-proof knife (12).

3. The three-sided power anti-break knife mechanism according to claim 1 is characterized in that: The output end of the power member (5) is connected to a joint bearing (6), and the joint bearing (6) is connected to a push rod fixing block (8) located on one side of the sliding plate (15).

4. The three-sided power anti-break knife mechanism according to claim 1 is characterized in that: The power part (5) is one of a pneumatic cylinder, a hydraulic cylinder or a servo electric cylinder.

5. The three-sided powered anti-break knife mechanism according to claim 1 is characterized in that: The explosion-proof knife holder (1) is provided with movable ends (101) at both ends respectively, and the movable ends (101) are connected to an operating platform.

6. The three-sided powered anti-break knife mechanism according to claim 1, characterized in that: The explosion-proof knife holder (1) is provided with two detachable connecting blocks (102) arranged opposite to each other, and the two connecting blocks (102) are respectively connected to the first blade component (2) and the second blade component (3).

7. The three-sided powered anti-breakage knife mechanism according to claim 1, characterized in that: A first slider baffle (7) and a second slider baffle (13) for limiting the position of the guide rail slider (14) are respectively provided on both sides of the sliding plate (15).

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