A book cover film backing paper scoring and tearing device

Abstract

This utility model discloses an easy-tear scriber for book cover film lining, relating to the technical field of scriber devices. The utility model includes a frame, with mounting brackets symmetrically fixed to the rear of the frame. Scribing blade holders are symmetrically and movably mounted on the frame. A double-ended screw is rotatably connected to the frame via bearings. The two ends of the double-ended screw have opposite directions of rotation, and each end of the double-ended screw is threaded through two scriber holders. One end of the double-ended screw extends to the outside of the frame and is fixedly equipped with an adjusting handle. A pressure roller is rotatably connected to the front end of the scriber holder via an axle. This utility model, by rotating the double-ended screw, drives the two scriber holders and scriber blades to move closer or further apart simultaneously, allowing for rapid adjustment of the spacing between the two scriber blades. This enables flexible adjustment of the scriber spacing on the book cover film lining. By moving a crossbar, the scriber blades rotate around a pivot, allowing for flexible adjustment of the scriber depth on the book cover film lining.

Description

Technical Field

[0001] This utility model belongs to the technical field of scoring devices, and in particular relates to an easy-tear scoring device for book cover film backing paper. Background Technology

[0002] To protect their books and notebooks, primary and secondary school students often use book covers to wrap them, preventing curling or damage. Book covers sold on the market are pre-cut and creasing, with dimensions matching the books for easy wrapping. However, cutting these book covers requires a suitable cutting device. A search revealed a patent application (application number 202021300851.5) disclosing a book cover liner scoring and tearing device. This device includes a frame and a panel. A crossbar is mounted on the frame, and several movable cutting sections are fitted onto the crossbar. One end of each cutting section has a fixing element. One side of each cutting section has a scoring blade, and the other side has a roller. One end of each roller has a lifting spring that controls the distance between the roller and the panel. A clamping part is also provided on the cutting section, controlling the distance between the scoring blade and the panel.

[0003] However, in actual use, the applicant found that when adjusting the spacing of the cutting blades, it is necessary for personnel to loosen the fixing parts, then move the upper and lower parts of the two cutting sections one by one along the crossbar to adjust them to the required positions, and then tighten the fixing parts again to fix the upper and lower parts of the cutting sections on the crossbar in order to complete the adjustment of the spacing of the cutting blades. This is not convenient to operate. In view of this, we propose a book cover film lining paper scoring and tearing device. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model relates to a book cover film liner scoring and tearing device, comprising a frame, with mounting brackets symmetrically fixedly connected to the tail of the frame, scoring blade holders symmetrically and movably mounted on the frame, and a double-ended screw rotatably connected to the frame via bearings, the two ends of the double-ended screw having opposite directions of rotation, and each end of the double-ended screw threaded through two scoring blade holders, one end of the double-ended screw extending to the outside of the frame and fixedly provided with an adjusting handle, the front end of the scoring blade holder being rotatably connected to a pressure roller via an axle, and scoring blades being provided on the inner sidewall of the front end of the scoring blade holder.

[0006] Preferably, a middle seat is fixedly connected to the middle of the front end of the frame, and a second arc-shaped sliding groove is provided on the middle seat. A crossbar is locked and fixed in the second arc-shaped sliding groove by a locking nut.

[0007] Preferably, the crossbar has an external thread that mates with a locking nut, and the locking nut abuts against the side wall of the intermediate seat.

[0008] Preferably, a limiting slider is provided in the middle of the crossbar, and the limiting slider moves along the limiting groove opened on the inner wall of the second arc-shaped groove.

[0009] Preferably, the scoring blade is rotatably connected to the inner wall of the scoring tool holder via a rotating shaft, and the scoring tool holder is provided with a first arc-shaped groove.

[0010] Preferably, the two ends of the crossbar pass through the tail ends of the scoring blades on both sides and the first arc-shaped groove, respectively.

[0011] This utility model has the following beneficial effects:

[0012] This utility model discloses an easy-tear scriber for book cover film backing paper. By rotating a double-headed screw, two scriber holders and scriber blades move closer or further apart simultaneously, allowing for rapid adjustment of the spacing between the two scriber blades. This enables convenient adjustment of the scriber spacing on the book cover film backing paper. By loosening the locking nut and moving the crossbar, the scriber blades can be rotated around the pivot, allowing for adjustment of the scriber blade tilt angle and thus convenient adjustment of the scriber depth on the book cover film backing paper. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0014] Figure 1 This is a left-side structural schematic diagram of a book cover film liner paper scoring and tearing device according to the present invention;

[0015] Figure 2 This is a right-side structural schematic diagram of a book cover film liner paper scoring and tearing device according to the present invention;

[0016] Figure 3 This utility model relates to a book cover film liner paper scoring and tearing device. Figure 2 Enlarged view of the structure at point A in the middle.

[0017] The attached diagram lists the components represented by each number as follows:

[0018] 1. Frame; 2. Mounting bracket; 3. Double-ended screw; 31. Adjusting handle; 4. Scoring tool holder; 41. First arc-shaped slide groove; 5. Pressure roller; 6. Rotary shaft; 7. Scoring blade; 8. Intermediate seat; 81. Second arc-shaped slide groove; 9. Crossbar; 10. Locking nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 As shown, this utility model provides a technical solution:

[0021] Example 1: A book cover film liner scoring and tearing device includes a frame 1. A mounting bracket 2 is symmetrically fixedly connected to the tail of the frame 1, allowing the frame 1 to be connected and fixed to a drive machine. Scoring blade holders 4 are symmetrically and movably mounted on the frame 1. A double-ended screw 3 is rotatably connected to the frame 1 via bearings. The two ends of the double-ended screw 3 have opposite rotation directions, and each end of the double-ended screw 3 is threaded through two scoring blade holders 4. By rotating the double-ended screw 3, the two scoring blade holders 4 can be moved closer or further apart synchronously, thus allowing for rapid adjustment of the distance between the two scoring blade holders 4. One end of the double-ended screw 3 extends to the outside of the frame 1 and is fixedly provided with an adjusting handle 31. A pressure roller 5 is rotatably connected to the front end of the scoring blade holder 4 via an axle for pressing the book cover film liner. The inner wall of the front end is provided with a scoring blade 7. The scoring blade 7 can move together with the scoring blade holder 4, so that the distance between the two scoring blades 7 can be adjusted according to the scoring width. When scoring the book cover film backing paper, the scoring blade holder 4 can be placed above the book cover film backing paper, so that when the scoring blade 7 scores the book cover film backing paper, the pressing roller 5 can press the book cover film backing paper, which can drive the machine to score the book cover film backing paper. When it is necessary to adjust the scoring distance, the double-headed screw 3 can be rotated manually by turning the adjusting handle 31. The rotation of the double-headed screw 3 can drive the two scoring blade holders 4 and the scoring blades 7 to move closer or further away at the same time, so as to quickly adjust the distance between the two scoring blades 7, thereby adjusting the scoring distance of the book cover film backing paper.

[0022] Example 2: The difference between this example and Example 1 is that an intermediate seat 8 is fixedly connected to the middle of the front end of the frame 1. A second arc-shaped groove 81 is provided on the intermediate seat 8. A crossbar 9 is locked in the second arc-shaped groove 81 by a locking nut 10. The crossbar 9 has an external thread that mates with the locking nut 10. The locking nut 10 abuts against the side wall of the intermediate seat 8. A limiting slider is provided in the middle of the crossbar 9, and the limiting slider moves along a limiting groove on the inner wall of the second arc-shaped groove 81. The limiting slider and the limiting groove are not shown in the figure. They are used to limit the crossbar 9 and prevent it from sliding left or right. The scoring blade 7 is rotatably connected to the inner wall of the scoring tool holder 4 via a rotating shaft 6. The scoring tool holder 4 has a second arc-shaped groove 81. An arc-shaped slide groove 41 is provided. The two ends of the crossbar 9 pass through the tail ends of the scoring blades 7 on both sides and the first arc-shaped slide groove 41, respectively. By sliding the crossbar 9 along the second arc-shaped slide groove 81, the two scoring blades 7 can be driven to rotate around the rotating shaft 6 simultaneously. Thus, the scoring depth of the book cover film lining paper can be adjusted by adjusting the angle of the scoring blades 7. When it is necessary to adjust the scoring depth of the book cover film lining paper, the two locking nuts 10 can be loosened first. Then, the crossbar 9 can be slid along the second arc-shaped slide groove 81 to drive the scoring blades 7 to rotate around the rotating shaft 6 to a suitable angle. After that, the two locking nuts 10 can be tightened again to effectively lock the crossbar 9, thereby locking the scoring blades 7 and adjusting the scoring depth of the book cover film lining paper.

[0023] Working principle: During use, when scoring the book cover film backing paper, the scoring blade holder 4 can be positioned above the book cover film backing paper. This allows the scoring blade 7 to score the backing paper, while the pressure roller 5 presses the backing paper firmly, driving the machine to score the backing paper. When the scoring spacing needs to be adjusted, the adjusting handle 31 can be manually rotated to rotate the double-headed screw 3. The rotation of the double-headed screw 3 can cause the two scoring blade holders 4, along with the scoring blade 7, to move closer or further away synchronously. The spacing between the two scoring blades 7 can be quickly adjusted to adjust the spacing of the scoring on the book cover film backing paper. When it is necessary to adjust the scoring depth of the book cover film backing paper, first loosen the two locking nuts 10, then slide the crossbar 9 along the second arc-shaped slide groove 81, causing the scoring blade 7 to rotate around the rotating shaft 6 to a suitable angle, and then tighten the two locking nuts 10 again to effectively lock the crossbar 9, thereby locking the scoring blade 7 and adjusting the scoring depth of the book cover film backing paper.

[0024] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications to the technical solutions described in the foregoing embodiments or equivalent substitutions of some of the technical features shall fall within the protection scope of the present utility model.

Claims

1. A book cover film liner with easy-tear marking device, comprising a frame (1), characterized in that: The frame (1) is symmetrically fixedly connected to the tail of the frame (1), and the frame (1) is symmetrically and movably fitted with a scoring tool holder (4). The frame (1) is rotatably connected to a double-ended screw (3) through a bearing. The two ends of the double-ended screw (3) have opposite directions of rotation, and the two ends of the double-ended screw (3) are threaded through the two scoring tool holders (4) respectively. One end of the double-ended screw (3) extends to the outside of the frame (1) and is fixedly provided with an adjusting handle (31). The front end of the scoring tool holder (4) is rotatably connected to a pressure roller (5) through a wheel axle. The inner side wall of the front end of the scoring tool holder (4) is provided with a scoring blade (7).

2. The book cover film liner paper scoring and tearing device according to claim 1, characterized in that, A middle seat (8) is fixedly connected to the middle part of the front end of the frame (1). A second arc-shaped slide groove (81) is provided on the middle seat (8). A crossbar (9) is locked and fixed in the second arc-shaped slide groove (81) by a locking nut (10).

3. The book cover film liner paper scoring and tearing device according to claim 2, characterized in that, The crossbar (9) has an external thread that engages with the locking nut (10), and the locking nut (10) abuts against the side wall of the intermediate seat (8).

4. The book cover film liner paper scoring and tearing device according to claim 3, characterized in that, The crossbar (9) is provided with a limiting slider in the middle, and the limiting slider moves along the limiting groove opened on the inner wall of the second arc-shaped groove (81).

5. The book cover film liner paper scoring and tearing device according to claim 4, characterized in that, The scoring blade (7) is rotatably connected to the inner wall of the scoring tool holder (4) via a pivot (6), and the scoring tool holder (4) is provided with a first arc-shaped groove (41).

6. The book cover film liner paper scoring and tearing device according to claim 5, characterized in that, The two ends of the crossbar (9) pass through the tail ends of the scoring blades (7) on both sides and the first arc-shaped groove (41).

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