A book cutting machine

Abstract

The application discloses a book cutting machine and relates to the technical field of books. The book cutting machine comprises a book cutting machine body, a backing plate is arranged on the bottom surface of the book cutting machine body, an avoiding structure for avoiding the book spine is arranged at one end of the backing plate, and an identification corresponding to the avoiding structure is arranged on the cutting table surface of the book cutting machine body. A driving assembly can also be arranged, the driving assembly is installed on the back surface of the backing plate and is in transmission connection with the backing plate, and the driving assembly is used for driving the backing plate to overturn and switching the position of the backing plate between the bottom surface and the back surface of the backing plate. The backing plate with the avoiding structure avoids the book spine part when being pressed, the cutting positioning accuracy is ensured, and the rigid pressing is avoided to prevent the book spine of the glued book from being wrinkled and the glue layer from being cracked. The working state of the backing plate can be switched through the driving assembly, and different cutting requirements of books and conventional paper stacks can be adapted.

Description

Technical Field

[0001] This invention relates to the field of book technology, and more particularly to a book cutter. Background Technology

[0002] A book trimmer is a processing device in the post-printing binding process. It is mainly used to trim the top, bottom, and sides of various finished books, such as perfect and paperback books, so that the books reach the specified finished size and ensure that the page edges are neat and the appearance is regular.

[0003] In the current book trimming machine's cutting process, the paper pressure unit is a key component ensuring cutting accuracy: before the cutting blades move, the paper pressure unit presses down to firmly fix the book to be cut on the cutting table, and then the cutting blades complete the cutting along the set path. Currently, most paper pressure units in the industry adopt a rigid pressure plate structure, which provides clamping force through cylinders, hydraulic cylinders, or motors. After the pressure parameters are preset, they remain unchanged during a single cutting process.

[0004] In actual production, the above-mentioned paper-pressing structure has obvious technical defects when cutting the top or bottom (top / bottom) of the book: if the pressing force of the paper presser is set too small, the shearing lateral force generated when the cutter cuts into the book can easily cause the book to shift or move, resulting in deviations in the cutting size and uneven cut edges, directly reducing the cutting accuracy and the quality of the finished product; if the pressing force is set too large, for perfect bound books, the glue layer at the spine has a high hardness after solidification, and the concentrated compressive stress of the rigid pressing plate can easily act on the spine, causing the spine to wrinkle under pressure and form uneven indentation textures. In severe cases, it may even cause the glue layer to crack and peel off, directly leading to the scrapping of the book.

[0005] Currently, production relies heavily on operators manually adjusting pressure parameters based on experience, considering book thickness and adhesive layer hardness. This requires highly skilled operators and has poor adaptability. When the production line switches to books of different specifications and adhesive amounts, the pressure parameters need to be repeatedly adjusted, which is not only time-consuming and labor-intensive but also results in book waste.

[0006] Therefore, there is an urgent need to develop a book cutter to address the aforementioned shortcomings. Summary of the Invention

[0007] The purpose of this invention is to provide a book cutter to solve the problems existing in the prior art. By setting a pad with a relief structure on the pressing plate, the spine part is avoided while ensuring the book is pressed and positioned, thus preventing the rigid pressing from causing the spine to wrinkle or crack.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention relates to a book trimmer, comprising a book trimmer body; The bottom surface of the pressing board of the book cutter body is provided with a pad, and one end of the pad is provided with an avoidance structure for avoiding the spine of the book. The cutting table of the book cutter body is provided with a mark, and the mark is provided in correspondence with the avoidance structure; And / or, it also includes a drive assembly disposed on the back side of the pressure plate, the drive assembly being drively connected to the pad for driving the pad to flip so that the pad changes position between the bottom and back sides of the pressure plate.

[0009] Optionally, the avoidance structure is a notch formed at one end of the bottom surface of the pad.

[0010] Optionally, the length of the pad is less than the width of the feed inlet of the book cutter body, one end of the pad is on the same vertical plane as one side of the feed inlet, and the space between the other end of the pad and the other side of the feed inlet forms the avoidance structure.

[0011] Optionally, the marking is a line engraved or drawn on the cutting table surface, the line being located below one side of the avoidance structure.

[0012] Optionally, the drive assembly includes a power mechanism, a transmission mechanism, a guide mechanism, a first hinge support and a second hinge support, wherein a plurality of first hinge supports are spaced apart and fixedly connected to the pressure plate, and a plurality of second hinge supports are arranged in a one-to-one correspondence with the first hinge supports and fixedly connected to the pad. The transmission mechanism slides through multiple first hinge supports and second hinge supports. The guiding mechanism is mounted on the second hinge support and is connected to the transmission mechanism in a transmission manner. The power mechanism is mounted on the pressure plate and is fixedly connected to the transmission mechanism.

[0013] Optionally, the transmission mechanism includes a transmission rod that slides through the first hinge support and the second hinge support. The transmission rod is provided with a helical drive groove, which is provided in a one-to-one correspondence with the guide mechanism. The helical drive groove is connected to the guide mechanism in a transmission manner.

[0014] Optionally, the guiding mechanism includes a ball and a bolt, the bolt being threadedly connected to the second hinge support, one end of the bolt having a spherical groove, one end of the ball being located in the spherical groove, and the other end of the ball protruding into the helical drive groove.

[0015] Optionally, the power mechanism includes a drive block, a lead screw, and a geared motor. The geared motor is fixedly connected to the pressure plate, and the output shaft of the geared motor is fixedly connected to one end of the lead screw. A connecting block is fixed to one side of the drive block, and the lead screw passes through the connecting block and the two are threadedly connected. The bottom end of the drive block is fixedly connected to one end of the transmission rod.

[0016] Optionally, a guide rod is fixed on the pressure plate, and a slider is slidably sleeved on the guide rod, with one end of the slider being fixedly connected to the drive block.

[0017] Compared with the prior art, the present invention has at least the following beneficial technical effects: By incorporating a clearance structure to allow for structural clearance at the spine, sufficient pressure is applied to the book, preventing misalignment during cutting and ensuring cutting accuracy and cut quality. This also avoids the wrinkles, uneven textures, and even adhesive cracking caused by direct pressure from a rigid pressure plate on the spine, effectively improving the yield rate of finished cut perfect-bound books. Furthermore, alignment is achieved using markings, making the operation simple and intuitive, eliminating the need for repeated pressure parameter adjustments and reducing the skill requirements for operators. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention; Figure 2 This is a second three-dimensional structural schematic diagram of the present invention; Figure 3 A schematic diagram of one embodiment of the pad; Figure 4 This is a schematic diagram of another embodiment of the pad; Figure 5 This is a three-dimensional structural diagram of the pad and transmission rod; Figure 6 A three-dimensional structural diagram of a portion of the transmission rod; Figure 7 A three-dimensional structural diagram of the pressure plate, pad, and drive assembly; Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle; Figure 9 for Figure 7 Enlarged structural diagram at point B; Figure 10 This is a schematic diagram showing the structure when the pad is located on the back of the pressure plate; Figure 11 for Figure 10 A schematic diagram of the cross-sectional structure; Figure 12 for Figure 11 Enlarged structural diagram at point C.

[0020] Explanation of reference numerals in the attached drawings: 100, pressure plate; 200, pad; 300, cutting table; 400, marking; 500, clearance structure; 600, first hinge support; 700, second hinge support; 800, transmission rod; 801, helical drive groove; 900, ball bearing; 1000, bolt; 1100, drive block; 1101, connecting block; 1102, slider; 1200, lead screw; 1300, geared motor; 1400, guide rod. Detailed Implementation

[0021] The core of this invention is to provide a book cutter that, by setting a pad with a clearance structure on the pressing plate, ensures that the book is pressed and positioned while clearing the spine area, thus avoiding rigid pressing that could cause the spine to wrinkle or crack.

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "link", "fix", "sleeve", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] The circuits, electronic components, modules, and controllers involved in this application are all prior art, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the above-mentioned components.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] A book cutter: In one specific embodiment of the present invention, a book trimmer body is included; The bottom surface of the pressure plate 100 of the book cutter body is provided with a pad 200, and one end of the pad 200 is provided with a relief structure 500 for avoiding the spine of the book. The cutting table 300 of the book cutter body is provided with a mark 400, and the mark 400 is set in correspondence with the avoidance structure 500; And / or, it also includes a drive assembly disposed on the back of the pressure plate 100, the drive assembly being drively connected to the pad 200 for driving the pad 200 to flip so that the pad 200 changes position between the bottom and back surfaces of the pressure plate 100.

[0027] In a specific embodiment of the present invention, referring to... Figure 1 and 3 As shown, the avoidance structure 500 is a notch at one end of the bottom surface of the pad 200. The notch is set along the width direction of the pad 200. The width of the notch is adapted to the width range of the conventional spine adhesive layer to ensure that the spine does not contact the bottom surface of the pad 200. A rounded chamfer can be set at the transition between the notch and the pad 200.

[0028] In a specific embodiment of the present invention, referring to... Figure 4 As shown, the length of the pad 200 is less than the width of the feed inlet of the book trimmer body. One end of the pad 200 is on the same vertical plane as one side of the feed inlet, and the space between the other end of the pad 200 and the other side of the feed inlet forms a clearance structure 500. The bottom end of the pad 200 can be rounded. Specifically, the pad 200 only covers the area corresponding to the main body of the book, and the spine side is left open to form the clearance structure 500, without the need for additional notches. Compared with the method of setting notches, it can accommodate more spines with different glue layer widths.

[0029] In one specific embodiment of the present invention, the identifier 400 is a line engraved or drawn on the cutting table surface 300, and the line is located below one side of the avoidance structure 500, as shown in the reference. Figure 1 As shown, the line is located below the bottom right side of the avoidance structure 500. The left or right mentioned in this application refers to... Figure 1 , 3 Taking 4 as an example, and determining it from the reader's own left and right positions. Figure 1For example, when placing a book, the spine should be 2 to 5 millimeters to the left of mark 400.

[0030] Work process: Before trimming the top or bottom margins of a book, the operator places the book to be trimmed on the cutting table 300° and adjusts its position. Figure 1 For example, the spine is located 2 to 5 millimeters to the left of the mark 400, ensuring that the spine is below the avoidance structure 500; then the pressure plate 100 moves down, and the pad 200 presses down accordingly. The solid bottom surface of the pad 200 presses against the main body area of ​​the book, and the spine does not bear compressive stress; then, the cutting scissors complete the cutting of the book ends; after the cutting is completed, the pressure plate 100 moves up.

[0031] Beneficial effects: By incorporating the avoidance structure 500, structural clearance is provided for the spine area, ensuring sufficient pressure on the book to prevent misalignment during cutting and guaranteeing cutting accuracy and cut quality. This also avoids the problems of wrinkles, uneven textures, and even adhesive layer cracking caused by direct pressure from a rigid pressure plate on the spine, effectively improving the yield rate of finished cut perfect-bound books. Simultaneously, alignment is achieved using the marking 400, making operation simple and intuitive, eliminating the need for repeated pressure parameter adjustments and reducing the skill requirements for operators.

[0032] In a specific embodiment of the present invention, referring to... Figure 2 and 5 As shown in Figure 12, the drive assembly includes a power mechanism, a transmission mechanism, a guide mechanism, a first hinge support 600 and a second hinge support 700. Multiple first hinge supports 600 are spaced apart along the length of the pressure plate 100 and are fixedly connected to the pressure plate 100. Multiple second hinge supports 700 are arranged one-to-one with the first hinge supports 600 and are fixedly connected to the pad 200. The transmission mechanism slides through multiple first hinge supports 600 and second hinge supports 700. The guide mechanism is mounted on the second hinge support 700 and is connected to the transmission mechanism. The power mechanism is mounted on the pressure plate 100 and is fixedly connected to the transmission mechanism.

[0033] In a specific embodiment of the present invention, referring to... Figures 5 to 9 As shown in Figures 11 and 12, the transmission mechanism includes a transmission rod 800, which slides through the first hinge support 600 and the second hinge support 700. The transmission rod 800 is provided with a helical drive groove 801, which is provided in a one-to-one correspondence with the guide mechanism. The helical drive groove 801 is connected to the guide mechanism in a transmission manner.

[0034] In a specific embodiment of the present invention, referring to... Figure 11 and 12As shown, the guide mechanism includes a ball 900 and a bolt 1000. The bolt 1000 is threadedly connected to the second hinge support 700. One end of the bolt 1000 has a spherical groove. One end of the ball 900 is located in the spherical groove, and the other end of the ball 900 extends into the spiral drive groove 801 and can roll along the spiral drive groove 801.

[0035] In a specific embodiment of the present invention, referring to... Figure 7 and 8 As shown, the power mechanism includes a drive block 1100, a lead screw 1200, and a geared motor 1300. The geared motor 1300 is fixedly connected to the pressure plate 100, and the output shaft of the geared motor 1300 is fixedly connected to one end of the lead screw 1200. A connecting block 1101 is fixedly attached to one side of the drive block 1100, and the lead screw 1200 passes through the connecting block 1101 and the two are threaded together. The bottom end of the drive block 1100 is fixedly connected to one end of the transmission rod 800.

[0036] In a specific embodiment of the present invention, referring to... Figure 7 and 8 As shown, a guide rod 1400 is fixed on the pressure plate 100, and a slider 1102 is slidably sleeved on the guide rod 1400. One end of the slider 1102 is fixedly connected to the drive block 1100 to provide guidance for the movement of the drive block 1100.

[0037] Work process: When cutting the top or bottom margins of a book and needing to avoid the spine, the geared motor 1300 starts, driving the lead screw 1200 to rotate. Through threaded transmission, the connecting block 1101 and the drive block 1100 are moved along the guide rod 1400, which in turn pushes the transmission rod 800 to move axially. When the transmission rod 800 moves, the sidewall of the spiral drive groove 801 on its surface squeezes the ball bearings 900. Through the ball bearings 900, the second hinge support 700 rotates around the axis of the transmission rod 800, thereby causing the pad 200 to flip to the bottom surface of the pressure plate 100.

[0038] When cutting the book's edge or regular paper stack without needing to avoid the spine, the geared motor 1300 rotates in the reverse direction, driving the transmission rod 800 to move in the reverse direction. The spiral drive groove 801 drives the ball bearing 900 in the reverse direction, causing the second hinge support 700 to rotate in the reverse direction, causing the pad 200 to flip onto the back of the pressure plate 100. Obviously, when cutting the book's edge or regular paper stack, the pad 200 may not flip onto the back of the pressure plate 100, which the operator can decide according to their own preference.

[0039] Beneficial effects: This embodiment utilizes a screw drive and flip-drive structure to switch the working state of the pad 200. When cutting the top / bottom edges, the pad 200 is activated to protect the spine. When cutting regular paper stacks, the pad 200 flips to the back of the pressure plate 100. One machine can adapt to various cutting requirements without manual disassembly and reassembly of the pad 200. The guiding mechanism adopts a detachable structure using bolts 1000 and ball bearings 900, facilitating maintenance.

[0040] In a specific embodiment of the present invention, the pad 200 can be made of the following materials: polyurethane (PU) sheet or PU + high-density polyethylene composite sandwich panel, suitable for high-speed cutting of large batches of perfect binding books; nylon or HDPE sheet, suitable for the production of regular picture albums and hardcover books; high-density PVC sheet or TPE sheet, suitable for small single machines and small batch processing; TPE elastic sheet, suitable for thin books and children's books.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0042] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A book trimmer, comprising a book trimmer body, characterized in that: The bottom surface of the pressing plate (100) of the book cutter body is provided with a pad (200), and one end of the pad (200) is provided with a clearance structure (500) for avoiding the spine of the book. The cutting table (300) of the book cutter body is provided with a mark (400), and the mark (400) is provided in correspondence with the avoidance structure (500); And / or, it also includes a drive assembly disposed on the back of the pressure plate (100), the drive assembly being kinetically connected to the pad (200) for driving the pad (200) to flip so that the pad (200) changes position between the bottom and back surfaces of the pressure plate (100).

2. The book trimmer according to claim 1, characterized in that: The avoidance structure (500) is a notch formed at one end of the bottom surface of the pad (200).

3. The book trimmer according to claim 1, characterized in that: The length of the pad (200) is less than the width of the feed inlet of the book cutter body. One end of the pad (200) is on the same vertical plane as one side of the feed inlet, and the space between the other end of the pad (200) and the other side of the feed inlet forms the clearance structure (500).

4. The book trimmer according to claim 2 or 3, characterized in that: The marking (400) is a line engraved or drawn on the cutting table (300), the line being located below one side of the avoidance structure (500).

5. The book trimmer according to claim 1, characterized in that: The drive assembly includes a power mechanism, a transmission mechanism, a guide mechanism, a first hinge support (600) and a second hinge support (700). A plurality of first hinge supports (600) are spaced apart and fixedly connected to the pressure plate (100). A plurality of second hinge supports (700) are arranged one-to-one with the first hinge supports (600) and fixedly connected to the pad (200). The transmission mechanism slides through multiple first hinge supports (600) and second hinge supports (700). The guide mechanism is mounted on the second hinge support (700) and is connected to the transmission mechanism in a transmission manner; The power mechanism is mounted on the pressure plate (100) and is fixedly connected to the transmission mechanism.

6. The book trimmer according to claim 5, characterized in that: The transmission mechanism includes a transmission rod (800) that slides through the first hinge support (600) and the second hinge support (700). The transmission rod (800) is provided with a helical drive groove (801). The helical drive groove (801) is provided in a one-to-one correspondence with the guide mechanism. The helical drive groove (801) is connected to the guide mechanism in a transmission manner.

7. The book trimmer according to claim 6, characterized in that: The guiding mechanism includes a ball (900) and a bolt (1000). The bolt (1000) is threadedly connected to the second hinge support (700). One end of the bolt (1000) has a spherical groove. One end of the ball (900) is located in the spherical groove, and the other end of the ball (900) extends into the helical drive groove (801).

8. The book trimmer according to claim 7, characterized in that: The power mechanism includes a drive block (1100), a lead screw (1200), and a geared motor (1300). The geared motor (1300) is fixedly connected to the pressure plate (100), and the output shaft of the geared motor (1300) is fixedly connected to one end of the lead screw (1200). A connecting block (1101) is fixedly attached to one side of the drive block (1100), and the lead screw (1200) passes through the connecting block (1101) and the two are threaded together. The bottom end of the drive block (1100) is fixedly connected to one end of the transmission rod (800).

9. The book trimmer according to claim 8, characterized in that: A guide rod (1400) is fixed on the pressure plate (100), and a slider (1102) is slidably sleeved on the guide rod (1400). One end of the slider (1102) is fixedly connected to the drive block (1100).

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