Binding equipment and binding method

Abstract

The invention provides binding equipment and a binding method. The binding equipment is used for binding books through paper yarns and comprises a feeding device, a cutting device, a supporting table, a punching device and a forming device. The feeding device provides paper yarn. The cutting device obtains the paper yarn through the feeding device and cuts the paper yarn with the preset length to form a blank. The supporting table comprises a through groove, and the through groove corresponds to the binding position in a book. The punching device moves towards the supporting table and penetrates through the book at the binding position to form two binding holes. The forming device bends the two ends of the blank towards the direction of the supporting table to form paper nails. The binding device drives the paper nail to penetrate through the binding hole to move to the side, away from the forming device, of the book, and the two bent ends of the paper nail are fixedly connected with the book. According to the embodiment of the invention, the paper yarns are formed into the paper nail, so that the processing cost is lower, the processing process is simple, additional wastes are not generated, the damage to pages or users is avoided, and meanwhile, the recycling of books is facilitated.

Description

Technical Field

[0001] The present invention generally relates to the technical field of book binding, and in particular to a binding device and a binding method. Background Art

[0002] Saddle stitch is a common book binding method with a short binding cycle and low cost. In addition, books bound with saddle stitch can be spread out flat for easy reading. The traditional saddle stitch binding method uses galvanized iron nails to penetrate the book and bend it. However, the tip of the galvanized iron nail is sharp, which can easily damage the inner pages of the book and hurt the user. In addition, the main material properties of the galvanized iron nail and the book are quite different, which is not conducive to the recycling of book materials.

[0003] At present, there is a process for binding books with paper staples, in which paper is processed into a shape similar to an iron nail in advance. A hole is pre-opened in the book, and the paper staple is fixed after passing through the book. Although the material of this paper staple is similar to that of the book, the processing cost of the paper staple is high, and the structural strength is limited, and the binding firmness is low. For example, CN101316723A discloses a belt-type binding device and a paper staple, in which the paper staple needs to be pre-bent into a U shape, and an adhesive is added to part of its surface. It is also necessary to add the paper staple to the inner side of the cutting part and move with the cutting part. The paper staple in CN101316723A needs to be pre-formed, and the processing process is complicated, resulting in high cost, and the width of the paper staple is large, requiring the bound book to have a special shape, and the scope of application is small. At the same time, the binding strength of the paper staple made of wide paper tape is limited.

[0004] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the prior art in the field. Summary of the invention

[0005] In view of one or more defects in the prior art, the present invention provides a binding device for binding books using paper yarns, the binding device comprising:

[0006] a feeding device configured to provide the paper yarn;

[0007] A cutting device, the cutting device being arranged downstream of the feeding device, the feeding device obtaining the paper yarn and cutting the paper yarn of a preset length to form a blank;

[0008] A support platform, the book is placed on the support platform, the support platform comprises a through slot, and the through slot corresponds to a binding position in the book;

[0009] A punching device, the punching device is disposed on the upper side of the support platform, the punching device is configured to move toward the support platform and penetrate the book at the binding position to form two binding holes;

[0010] A forming device, which is disposed downstream of the cutting device and bends the two ends of the blank toward the support platform to form a paper nail, and the two bent ends of the paper nail are aligned with the punching device;

[0011] The binding device drives the paper nail to pass through the binding hole and move to a side of the book away from the forming device, and fixes the two bent ends of the paper nail to the book.

[0012] According to one aspect of the present invention, the punching device is a hollow structure. After the punching device forms the binding hole, the binding device drives the bent ends of the paper nail to pass through the binding hole along the hollow structure of the punching device to the side of the book away from the forming device.

[0013] According to one aspect of the present invention, the punching device comprises:

[0014] Two punching needles are semi-frame-shaped structures, and the openings of the two punching needles are arranged opposite to each other to form the hollow structure.

[0015] According to one aspect of the present invention, the forming device comprises:

[0016] a first forming portion, wherein the first forming portion fixes the blank;

[0017] The second forming part has a shape that matches that of the first forming part; the second forming part and the first forming part can move relative to each other to drive the two ends of the blank to bend.

[0018] According to one aspect of the present invention, the first forming part includes a first clamp and a second clamp, and the first clamp and the second clamp clamp and fix the blank at the middle of the blank.

[0019] According to one aspect of the present invention, the first clamp is arranged on a side of the second clamp away from the support platform, and the second forming portion includes a first forming groove, which is adapted to the shapes of the first clamp and the second clamp, and the first forming groove drives the two ends of the blank to bend along the side of the second clamp toward the support platform.

[0020] According to one aspect of the present invention, the second forming part further includes a first guide groove, the first guide groove is arranged on a side of the second forming part away from the punching device, and the first guide groove penetrates the second forming part and extends into the first forming groove; the binding device includes:

[0021] The punching knife moves along the first guide groove to push the paper nail into the binding hole.

[0022] According to one aspect of the present invention, the first clamp and the second clamp are movable in a direction perpendicular to the binding direction to avoid the punching knife and the paper staple.

[0023] According to one aspect of the present invention, the second forming portion further includes a first limiting groove, which is located on the inner side of the first forming groove, and both ends of the blank are bent toward the support platform along the first limiting groove and the side of the second clamp.

[0024] According to one aspect of the present invention, the first guide groove and the first limiting groove are in the same plane.

[0025] According to one aspect of the present invention, the first forming part is arranged on a side of the second forming part away from the support platform; the first forming part includes two clamping jaws, and the two clamping jaws are respectively clamped at positions close to both ends of the blank; a second forming groove is provided between the two clamping jaws, and the second forming groove is adapted to the shape of the second forming part, and the first forming part drives the blank to approach the second forming part so that the two ends of the blank are bent along the side of the second forming part toward the support platform.

[0026] According to one aspect of the present invention, the first forming part further includes a second guide groove, the second guide groove is arranged on a side of the first forming part away from the punching device, and the second guide groove penetrates the first forming part and extends into the second forming groove; the binding device includes:

[0027] The punching knife moves along the second guide groove to push the paper nail into the binding hole.

[0028] According to one aspect of the present invention, the first forming part further includes a second limiting groove, which is located on the inner side of the second forming groove, and both ends of the blank are bent toward the support platform along the second limiting groove and the side of the second forming part.

[0029] According to one aspect of the present invention, the binding device comprises:

[0030] The bending part is arranged on a side of the support platform away from the forming device, and the two ends of the paper nail passing through the binding hole are bent to fit the book.

[0031] According to one aspect of the present invention, the bending portion comprises:

[0032] Two rotating shafts, the rotating shafts are arranged on a side of the support platform away from the forming device;

[0033] Two pressing parts are installed on the rotating shaft and can rotate around the rotating shaft to approach and press the two ends of the paper nail passing through the binding hole; wherein the two pressing parts rotate synchronously.

[0034] According to one aspect of the present invention, the binding device further comprises:

[0035] A heating part is arranged on one side of the two ends of the bending of the paper nail in the pressing part, and heats the paper nail; the outer side of the paper yarn is coated with hot melt adhesive, and the heating part heats the paper nail to melt the hot melt adhesive in the paper yarn and stick it to the book.

[0036] According to one aspect of the present invention, the feeding device comprises:

[0037] a drum on which the paper yarn is wound;

[0038] At least one guide wheel is arranged downstream of the drum, and one end of the paper yarn extends along the guide wheel to the cutting device.

[0039] According to one aspect of the present invention, the cutting device cuts the paper yarn of a preset length according to the thickness of the book to form a blank.

[0040] According to one aspect of the present invention, one of the feeding devices, one of the cutting devices, one of the punching devices, one of the forming devices and one of the binding devices constitute a set of binding sub-devices; the binding device includes multiple groups of the binding sub-devices, and the multiple groups of the binding sub-devices are arranged along the straight line where the two binding holes are located.

[0041] According to one aspect of the present invention, a plurality of groups of the binding sub-devices move synchronously.

[0042] According to one aspect of the present invention, the present invention also relates to a binding method for binding a book using paper yarn, the binding method comprising:

[0043] providing the paper yarn;

[0044] cutting the paper yarn into a preset length to form a blank;

[0045] bending the two ends of the blank toward the same direction to form a paper nail;

[0046] forming two binding holes at preset positions in the book;

[0047] The two bent ends of the paper nail are passed through the book along the binding hole and fixedly connected with the book.

[0048] According to one aspect of the present invention, the preset length is pre-set according to the thickness of the book.

[0049] According to one aspect of the present invention, the outer side of the paper yarn is coated with hot melt adhesive, and the step of passing the two ends of the paper nail through the book along the binding hole and fixedly connecting the two ends with the book comprises:

[0050] Bending the two bent ends of the paper nail toward the book until they fit the book;

[0051] The paper nail is heated so as to be adhered and fixed to the book.

[0052] According to one aspect of the present invention, in the step of bending the two ends of the paper nail toward the book to fit the book, the two ends of the paper nail are bent toward the book at the same time.

[0053] According to one aspect of the present invention, the binding method is performed using the binding device as described above.

[0054] Compared with the prior art, an embodiment of the present invention provides a binding device that uses paper yarn to bind books. The paper yarn is a material that is made by cutting the base paper into strips and spinning it into a thread, and then surface-treated. It has a certain structural strength and is easy to recycle. The binding device in this embodiment can cut the paper yarn into blanks of a preset length, and use a forming device to shape the blanks into paper nails, and penetrate the book along the binding holes formed on the book by the punching device, and the paper nails are fixedly connected to the book by the binding device. The binding device can use paper yarn to bind books instead of galvanized iron nails. While meeting the strength requirements of book binding, it will not cause harm to the pages of the book or the user, and it is also conducive to the recycling of books. In addition, in the present invention, the paper yarn is formed into paper nails, the processing cost is low, the processing process is simple, and no additional waste is generated.

[0055] The present invention also relates to a binding method, which involves cutting paper yarns of a preset length and forming the paper yarns into paper nails to bind books, without using galvanized iron nails or preformed paper nails, thereby having a low processing cost and a simple processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0057] Figure 1 is a schematic diagram of the structure of a binding device in some embodiments of the present invention;

[0058] Figure 2 is a schematic diagram of the structure of a punching device in some embodiments of the present invention;

[0059] Figure 3 is a schematic diagram of the structure of a molding device in some embodiments of the present invention;

[0060] Figure 4 is a schematic diagram of a forming device forming a blank into a paper nail in some embodiments of the present invention;

[0061] Figure 5 is a schematic structural diagram of a molding device in some other embodiments of the present invention;

[0062] Figure 6 is a schematic diagram of a forming device forming a blank into a paper nail in other embodiments of the present invention;

[0063] Figure 7 is a schematic structural diagram of a binding device in some embodiments of the present invention;

[0064] Figure 8 is a schematic diagram of a binding device in some embodiments of the present invention that fixes a paper staple and a book together;

[0065] Fig. 9 is a schematic diagram of a feeding device and a cutting device in some embodiments of the present invention;

[0066] Fig.10 is a schematic flow chart of a binding method in some embodiments of the present invention;

[0067] Fig.11 It is a flow chart of a binding method including heating paper staples in some embodiments of the present invention. DETAILED DESCRIPTION

[0068] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0069] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which 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 limiting the present invention. In addition, the terms "first" and "second" 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. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0070] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0072] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0073] The embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0074] Figure 1 The structure of the binding device 100 according to some embodiments of the present invention is shown. The binding device 100 in this embodiment is used to bind books using paper yarns 200. Figure 1 The bookbinding apparatus 100 will be described.

[0075] like Figure 1 As shown, the binding device 100 includes a feeding device 110, a cutting device 120, a support table 130, a punching device 140, a forming device 150 and a binding device 160 (in Figure 1 is obscured in the image).

[0076] The feeding device 110 can provide the paper yarn 200, for example, the paper yarn 200 is arranged on the feeding device 110 in the form of a roll, and one end of the paper yarn 200 is led out from the feeding device 110. The paper yarn 200 is a thread spun from the base paper after being cut into strips, and is surface-treated. The length of the paper yarn 200 is usually large, and can be arranged on the feeding device 110 in rolls. In some embodiments, the surface treatment of the paper yarn 200 causes the paper yarn 200 to have a certain stiffness, for example, hot melt adhesive is formed on the surface of the paper yarn 200, preferably, hot melt adhesive is formed on the surface of the paper yarn 200, that is, the hot melt adhesive completely covers the paper yarn 200 in the length direction. Preferably, hot melt adhesive is formed on the surface of the paper yarn 200 within the length range, and the paper yarn 200 of any length is cut with hot melt adhesive. In the embodiment where the paper yarn 200 has a certain stiffness, it is preferred that the paper yarn 200 is wound on a drum with a larger diameter to avoid damage to the paper yarn 200 or a decrease in structural strength.

[0077] The cutting device 120 is disposed downstream of the feeding device 110 and is capable of obtaining the paper yarn 200 from the feeding device 110 and cutting the paper yarn 200 of a preset length from the continuous paper yarn 200 to form a blank 210 (see Figure 3 and Figure 5 For example, one end of the paper yarn 200 is led out by the feeding device 110, and the cutting device 120 obtains a portion of a preset length from the paper yarn 200 as the blank 210 according to the speed of obtaining the paper yarn 200 or using a measuring device. In this embodiment, the blank 210 is used to be formed into a paper nail 220 (see Figure 8 ), in some embodiments, the preset length of the blank 210 can be pre-set according to the thickness of the book. When binding a thicker book, the length of the blank 210 is appropriately increased, which can increase the contact area between the paper nail 220 and the book, which is beneficial to improve the bonding strength between the paper nail 220 and the book.

[0078] The book can be placed on the support platform 130. The support platform 130 has a plane, preferably, the support platform 130 has a horizontal surface, and the book can be placed on the horizontal surface. Figure 1 As shown, the support platform 130 includes inclined surfaces inclined to both sides, and books can be overlapped on the inclined surfaces. The binding position (such as the spine) in the book bulges upward and is located at the intersection of the inclined surfaces on both sides.

[0079] The support platform 130 includes a through slot 131, and the position of the through slot 131 corresponds to the binding position in the book. The support platform 130 provides support for the book, and the through slot 131 can facilitate the formation of a binding hole (not shown in the figure) at the binding position of the book, and allow the formed paper nail 220 to pass through the binding hole and extend to the other side of the book to bind the book.

[0080] In this embodiment, the book refers to unbound book pages stacked together in a preset order. The binding position can be located at the center line of the book. After the binding is completed, the book is bent along the center line to form a saddle-stitched print. Preferably, the back side of the pages in the book faces the top of the support platform 130, and the formed paper nails 220 penetrate the book from the back side of the pages in the book, so that the two ends of the paper nails 220 extend to the inner side of the book after the binding is completed, reducing the risk of the paper nails 220 being affected by external factors, which is conducive to improving the firmness of the book binding. Preferably, the book can be pre-folded at the binding position to facilitate the positioning of the book on the support platform 130, and the two sides are overlapped on the inclined surface inclined to the two sides of the support platform 130, and the folding position corresponds to the intersection of the inclined surfaces on both sides.

[0081] like Figure 1As shown, in some embodiments, the support platform 130 further includes a limiting structure 132, which can be configured to match the size of the book, and can be used to limit the position of the book on the support platform 130, thereby improving the accuracy of forming binding holes on the book. In some embodiments, one end of the book abuts against the limiting structure 132. Preferably, the limiting structure 132 on the support platform 130 can be configured to be removable or movable to adapt to books of different specifications and sizes.

[0082] The punching device 140 is disposed on the upper side of the support platform 130 and can move toward the support platform 130 to penetrate the book at the binding position of the book to form two binding holes. The punching device 140 can pass through the book and the through slot 131 of the support platform 130 at the binding position of the book. In this embodiment, the punching device 140 forms two binding holes at the binding position of the book, so that the formed paper nails 220 can be used to penetrate and lock the pages in the book from the positions of the two binding holes.

[0083] In some embodiments, the distance between the two binding holes formed on the book by the punching device 140 is preset. For example, the punching device 140 may include two tips with a fixed spacing, and when the punching device 140 moves toward the support platform 130, the two tips with a fixed spacing can form two binding holes on the book.

[0084] In some embodiments, the line between the two binding holes coincides with the center line of the book, and after the book is bound, the binding holes are located at the spine of the book.

[0085] The forming device 150 is disposed downstream of the cutting device 120. Preferably, the forming device 150 is disposed above the support platform 130. The forming device 150 obtains a blank 210 of a preset length from the cutting device 120, and is capable of bending both ends of the blank 210 toward the support platform 130 to form a paper nail 220. In the formed paper nail 220, the bent ends are aligned with the punching device 140. According to a preferred embodiment of the present invention, the paper nail 220 formed by the forming device 150 is located directly above the book binding position, and the two ends of the paper nail 220 bent toward the support platform 130 correspond to the two binding holes respectively.

[0086] The binding device 160 can drive the paper staple 220 to move along the binding hole, so that the two ends of the paper staple 220 bent toward the support platform 130 pass through the binding hole to the side of the book away from the forming device 150. In this embodiment, the binding device 160 makes the two ends of the paper staple 220 fixedly connected to the book ( Figure 1 Not shown, see Figure 7 and Figure 8). For example, the binding device 160 further bends the two bent ends of the paper staple 220 to fit the book, and adheres and fixes the paper staple 220 to the book. In some embodiments, glue is applied to the binding position on the side of the book away from the forming device 150, and the binding device 160 can press the two bent ends of the paper staple 220 to the glue-coated position in the book, so that the paper staple 220 is adhered and fixed to the book.

[0087] In a preferred embodiment of the present invention, the surface of the paper yarn 200 is coated with hot melt adhesive, and the binding device 160 can heat the two bent ends of the paper staple 220 to make the paper staple 220 adhere to the book. The specific structure of the binding device 160 is described in the subsequent embodiments.

[0088] In an embodiment of the present invention, the binding device 100 can use the paper yarn 200 to bind books. The structural strength of the paper yarn 200 can meet the firmness requirements of book binding, and there is no need to use iron wire, which is beneficial to reducing the risk of damage to book pages and stabbing users. And when recycling is needed, the material of the paper yarn 200 and the book is similar, which can reduce the difficulty of recycling and sorting, and reduce the recycling cost. Compared with the existing paper nails with complex structures, the paper nail 220 formed by the paper yarn 200 in this embodiment is simple in structure, low in cost, and has higher structural strength and bonding strength with the book, which is beneficial to improving the stability of the book after binding.

[0089] In some preferred embodiments of the present invention, a feeding device 110, a cutting device 120, a punching device 140, a forming device 150 and a binding device 160 can be made into a set of binding sub-devices. The binding device 100 includes multiple sets of binding sub-devices, and the multiple sets of binding sub-devices are arranged along the straight line where the two binding holes are located. For example Figure 1 The left side of FIG. 1 is a group of binding sub-devices, and the right side of FIG. 1 is another group of binding sub-devices. Multiple groups of binding sub-devices can bind at different positions of the book, which is conducive to improving the binding efficiency of the book, and binding at multiple different positions can improve the binding stability of the book. Preferably, multiple groups of binding sub-devices move synchronously and bind at different positions of the book at the same time, further improving the binding efficiency.

[0090] like Figure 1 As shown, in some embodiments, the binding device 100 further includes a track 170, and the track 170 extends along the direction of the straight line where the two binding holes are located. Multiple groups of binding sub-devices are arranged along the track 170 and can move along the track 170. When binding books of different sizes, the position of the binding sub-device on the track can be adjusted to bind at different positions of the book.

[0091] like Figure 2As shown, according to a preferred embodiment of the present invention, the punching device 140 is of a hollow structure. After the punching device 140 forms binding holes in the book, the binding device 160 drives the bent ends of the paper nails 220 to pass through the binding holes along the hollow structure of the punching device 140 and extend to one end of the book far from the forming device 150.

[0092] In this embodiment, the punching device 140 has relatively high structural strength. The hollow structure of the punching device 140 can protect the paper nails 220 and prevent the paper nails 220 from being affected by the cross-section formed by punching and cutting during the process of extending along the binding holes, resulting in deformation of the paper nails 220 and affecting the binding quality.

[0093] As Figure 2 shown, in some embodiments, the punching device 140 includes two punching needles 141. The two punching needles 141 move towards the support platform 130 simultaneously to form two binding holes in the book 00. For example, the two punching needles 141 are integrally formed. In some embodiments, the two punching needles 141 can be arranged in a semi-frame structure, and the open sides of the two punching needles 141 are arranged opposite to each other. For example, the cross-sectional shape of the punching needle 141 in a plane perpendicular to the axial direction is approximately C-shaped or "匚"-shaped, and the opening directions of the two punching needles 141 are arranged opposite to each other to form a hollow structure.

[0094] The shape of the paper nail 220 is roughly similar to that of a galvanized iron nail used for bookbinding, with both ends extending downward and a connecting cross beam in the middle. After the binding device 160 drives the bent ends of the paper nails 220 to pass through the two binding holes in the book respectively, the cross beam in the paper nail 220 is located directly above the outside of the book spine and between the two binding holes. The middle structure of the punching device 140 in this embodiment extends to the upper surface of the book. When the paper nail 220 moves along the hollow structure of the punching device 140, the punching device 140 will not block the paper nail 220, and the cross beam in the paper nail 220 can be attached to the upper surface of the book spine. In some embodiments, the two punching needles 141 can be arranged at intervals, and the gap between the two punching needles 141 can serve as the hollow structure of the punching device 140.

[0095] Preferably, the side of the punching needle 141 close to the support platform 130 can be arranged as a wedge surface. The binding holes formed by the punching needle 141 with a wedge surface are larger in size on the side close to the forming device 150 than on the side far from the forming device 150. Arranging the punching needle 141 as a wedge surface is beneficial to reducing the resistance of the punching needle 141 when punching holes in the book, and can also use the wedge-shaped binding holes to guide the movement direction of the bent ends of the paper nails 220, reducing the risk of the paper nails 220 being blocked and deformed.

[0096] Figure 3 shows the structure of the forming device 150 in some embodiments according to the present invention. Figure 4 The process of forming the blank 210 into the paper nail 220 by the forming device 150 according to some embodiments of the present invention is shown. The forming device 150 and the process of forming the blank 210 into the paper nail 220 are described below.

[0097] like Figure 3 As shown, in this embodiment, the forming device 150 includes a first forming part 151 and a second forming part 152. The first forming part 151 can fix the blank 210. For example, the first forming part 151 obtains the blank 210 from the cutting device 120 and keeps the blank 210 fixed.

[0098] The second molding part 152 and the first molding part 151 can move relative to each other to drive the two ends of the blank 210 held by the first molding part 151 to bend toward the support platform 130. For example, the first molding part 151 holds the blank 210 and keeps the position fixed, and the second molding part 152 is close to the first molding part 151.

[0099] In some embodiments, the second molding portion 152 includes a first molding groove 153, and the shape of the first molding groove 153 is adapted to the shape of the first molding portion 151. For example, the first molding groove 153 is adapted to the shape of the first molding portion 151, and the first molding groove 153 can be attached to the outer side of the first molding portion 151. The second molding portion 152 can move relative to the first molding portion 151, so that the first molding groove 153 and the first molding portion 151 cooperate with each other, and the first molding groove 153 drives the two ends of the blank 210 to bend along the side of the first molding portion 151.

[0100] like Figure 4 As shown, in some embodiments, the first molding part 151 fixes the blank 210, for example, fixes the blank 210 in the middle of the blank 210, and both ends of the blank 210 extend to the side of the first molding part 151 and hang in the air. The second molding part 152 and the first molding part 151 are close to each other, and under the extrusion of the first molding groove 153, the two ends of the blank 210 are bent downward and fit on the side of the first molding part 151.

[0101] Specifically, in some embodiments, the first molding part 151 includes a first clamp 154 ​​and a second clamp 155. The first clamp 154 ​​and the second clamp 155 clamp and fix the blank 210 in the middle. Figure 4As shown, when the forming device 150 obtains the blank 210 from the cutting device 120, there is a gap between the first clamp 154 ​​and the second clamp 155, and the blank 210 moves between the first clamp 154 ​​and the second clamp 155. The first clamp 154 ​​and the second clamp 155 approach each other and clamp and fix the blank 210 in the middle of the blank 210. Preferably, the clamping position of the first clamp 154 ​​and the second clamp 155 is located near the midpoint of the length of the blank 210.

[0102] According to some embodiments of the present invention, Figure 4 From the perspective shown, the size of the first clamp 154 ​​is smaller than or equal to the size of the second clamp 155. The first clamp 154 ​​is located on the upper side of the second clamp 155 away from the support platform 130. For example, the first clamp 154 ​​is arranged on the upper side of the second clamp 155. Figure 3 As shown in the figure, after the first clamp 154 ​​and the second clamp 155 are closed, the blank 210 is clamped between the first clamp 154 ​​and the second clamp 155. The first clamp 154 ​​and the second clamp 155 are roughly convex. The first forming groove 153 is adapted to the shape of the first clamp 154 ​​and the second clamp 155, for example, the shape of the inner side wall of the first forming groove 153 is roughly adapted to the shape after the first clamp 154 ​​and the second clamp 155 are closed, for example, the second forming part 152 is roughly inverted concave. In the process of the first forming part 151 and the second forming part 152 approaching each other, the first forming groove 153 drives the two ends of the blank 210 to bend along the side of the second clamp 155 toward the direction of the support platform 130 to form a paper nail 220.

[0103] Preferably, the side surface of the second clamp 155 is roughly perpendicular to the support platform 130, and the two bent ends of the formed paper nail 220 are roughly perpendicular to the support platform 130, so that when the paper nail 220 extends to the side of the book away from the forming device 150, the two bent ends of the paper nail 220 are aligned with the two binding holes in the book, thereby reducing the risk of interference and obstruction of the paper nail 220 at the position where the binding hole is not formed in the book.

[0104] like Figure 3 As shown, in a preferred embodiment of the present invention, the second forming portion 152 further includes a first guide groove 156. The first guide groove 156 is disposed on a side of the second forming portion 152 away from the punching device 140, and the first guide groove 156 runs through the second forming portion 152. Figure 3 As shown in , the first guide groove 156 is located at the top of the second molding portion 152 , passes through the second molding portion 152 , and extends into the first molding groove 153 .

[0105] like Figure 7As shown, the binding device 160 includes a punching knife 161, and the punching knife 161 moves along the first guide groove 156, which can push the paper nail 220 to move, so that the two ends of the paper nail 220 that are bent pass through the book along the binding hole. For example, the punching knife 161 is roughly sheet-shaped, and the shape of the first guide groove 156 is roughly adapted to the shape of the punching knife 161, which can guide the movement direction of the punching knife 161. Preferably, the movement direction of the punching knife 161 is parallel to the movement direction of the punching device 140 relative to the book, so that the two ends of the paper nail 220 that are bent pass through the book along the binding hole, reducing the risk of deformation of the paper nail 220.

[0106] The cross-sectional dimension of the punch 161 in a plane perpendicular to the direction of movement can be set to be approximately equal to the crossbeam dimension of the paper nail 220, and the punch 161 is approximately aligned with the paper nail 220, thereby reducing the risk of the paper nail 220 tilting or deforming when the punch 161 pushes the paper nail 220 to move.

[0107] According to a preferred embodiment of the present invention, the first clamp 154 ​​and the second clamp 155 can move along the binding direction to avoid the punch 161 and the paper nail 220, wherein the binding direction refers to the direction in which the punch 161 pushes the paper nail 220 to move. Figure 4 The first clamp 154 ​​and the second clamp 155 can move in the direction of the paper surface, and can retreat.

[0108] After the forming device 150 forms the blank 210 into the paper nail 220, the punch 161 pushes the paper nail 220 to move. In this embodiment, the first clamp 154 ​​and the second clamp 155 move in a direction perpendicular to the straight line where the two binding holes are located, so that the structures of the first clamp 154 ​​and the second clamp 155 avoid the movement path of the punch 161 and the paper nail 220. In this embodiment, after the paper nail 220 is formed, the first clamp 154 ​​and the second clamp 155 are moved, and the position of the paper nail 220 remains fixed, which can reduce the risk of deformation of the paper nail 220.

[0109] In some embodiments, the first clamp 154 ​​and the second clamp 155 may be configured to have an elastic structure. After the paper nail 220 is formed, the first clamp 154 ​​and the second clamp 155 are disengaged from the paper nail 220 under the action of the elastic structure, so as to avoid the first clamp 154 ​​and the second clamp 155 from rubbing against the paper nail 220 when moving in a direction perpendicular to the straight line where the two binding holes are located, thereby causing damage or deformation to the structure of the paper nail 220.

[0110] According to a preferred embodiment of the present invention, Figure 3As shown, the second molding part 152 further includes a first limiting groove 157. The first limiting groove 157 is located on the inner side of the first molding groove 153. When the second molding part 152 moves relative to the first molding part 151 so that the two ends of the blank 210 are bent toward the direction of the support platform 130, the two ends of the blank 210 are bent toward the direction of the support platform 130 along the side of the first limiting groove 157 and the second clamp 155. The first limiting groove 157 in this embodiment can guide the movement direction of the two ends of the blank 210. Preferably, the size of the first limiting groove 157 is set to be substantially equal to the size of the paper nail 220, or the size of the first limiting groove 157 is slightly larger than the size of the paper nail 220, for example, the first limiting groove 157 is a semi-arc groove. The second molding part 152 moves to fit with the first clamp 154 ​​and the second clamp 155, and the paper nail 220 is formed and embedded in the first limiting groove 157. The two ends of the blank 210 move along the first limiting groove 157, which can improve the standardization of the paper nails 220 and make the shapes and sizes of the paper nails 220 formed from multiple blanks 210 consistent, which is beneficial to improving the binding quality.

[0111] In a preferred embodiment of the present invention, the first limiting groove 157 can also be used to maintain the position of the paper nail 220. After the blank 210 is formed into the paper nail 220, the first clamp 154 ​​and the second clamp 155 move in a direction perpendicular to the straight line where the two binding holes are located to avoid the punching knife 161 and the paper nail 220. At the same time, the first clamp 154 ​​and the second clamp 155 maintain a contact state with the paper nail 220, and when the first clamp 154 ​​and the second clamp 155 move, the paper nail 220 may be driven to move, so that the paper nail 220 deviates from the position of the punching knife 161 and the binding hole. In this embodiment, the paper nail 220 is embedded in the first limiting groove 157. When the first clamp 154 ​​and the second clamp 155 move in a direction perpendicular to the straight line where the two binding holes are located, the first limiting groove 157 can keep the position and shape of the paper nail 220 unchanged.

[0112] Preferably, in some embodiments, Figure 3 and Figure 4 As shown, the size of the first clamp 154 ​​is smaller than that of the second clamp 155. A first limiting groove 157 is provided at a position corresponding to the upper surface of the first molding groove 153 and the second clamp 155, that is, after the second molding portion 152 is attached to the first clamp 154 ​​and the second clamp 155, a portion of the paper nail 220 located on the upper surface of the second clamp 155 is embedded in the first limiting groove 157. This embodiment can reduce the size of the paper nail 220 clamped by the first clamp 154 ​​and the second clamp 155, reduce the friction between the first clamp 154 ​​and the second clamp 155 and the paper nail 220 when controlling the movement of the first clamp 154 ​​and the second clamp 155 in a direction perpendicular to the straight line where the two binding holes are located, and further reduce the risk of deformation or damage of the paper nail 220.

[0113] According to a preferred embodiment of the present invention, the position of the first guide groove 156 corresponds to the position of the first limiting groove 157. The paper nail 220 is located in the first limiting groove 157, and when the punching knife 161 moves along the first guide groove 156, the position of the punching knife 161 is aligned with the paper nail 220.

[0114] Figure 5 The structure of the forming device 150 according to some other embodiments of the present invention is shown. Figure 6 The process of forming the blank 210 into the paper nail 220 by the forming device 150 according to some other embodiments of the present invention is shown below. Figure 5 and Figure 6 The process of forming the forming device 150 and the blank 210 into the paper nail 220 is described.

[0115] In this embodiment, the first molding portion 151 is disposed on a side of the second molding portion 152 away from the support platform 130. For example, the first molding portion 151 is located on the upper side of the second molding portion 152. Figure 5 As shown, the first forming portion 151 includes two clamping jaws 1511 , which clamp and fix the blank 210 , and the clamping positions of the two clamping jaws 1511 are close to two ends of the blank 210 .

[0116] A second molding groove 1512 is provided between the two clamping jaws 1511. The shape of the second molding groove 1512 matches the shape of the second molding portion 152. For example, the shape of the second molding groove 1512 matches the shape of the second molding portion 152. The position of the second molding groove 1512 corresponds to the position of the second molding portion 152. When the first molding portion 151 and the second molding portion 152 move relative to each other, for example Figure 6 As shown in , the first forming portion 151 is close to the second forming portion 152 , the second forming portion 152 is against the middle of the blank 210 , both ends of the blank 210 are bent toward the direction close to the support platform 130 , and are finally formed into a paper nail 220 .

[0117] According to a preferred embodiment of the present invention, the first molding portion 151 further includes a second guide groove ( Figure 5 140). The second guide groove is disposed on a side of the first forming portion 151 away from the punching device 140, and the second guide groove penetrates the first forming portion 151 and extends into the second forming groove 1512. The binding device 160 in this embodiment includes a punching knife 161, which can move along the second guide groove to push the paper nail 220 into the binding hole. In some embodiments, the second guide groove is substantially the same as the first guide groove 156 disposed on the second forming portion 152 in the aforementioned embodiment, and the punching knife 161 is substantially the same as the punching knife 161 in the aforementioned embodiment, and no further description is given.

[0118] like Figure 5As shown, in some embodiments of the present invention, the first forming portion 151 further includes a second limiting groove 1513, and the second limiting groove 1513 is located on the inner side of the second forming groove 1512. Both ends of the blank 210 are bent toward the support platform 130 along the second limiting groove 1513 and the side of the second forming portion 152. The structure and function of the second limiting groove 1513 are basically the same as those of the first limiting groove 157 in the aforementioned embodiment, and will not be repeated.

[0119] Figure 7 The structure of the binding device 160 according to some embodiments of the present invention is shown. Figure 8 FIG. 2 shows a process in which the binding device 160 fixes the paper staple 220 to the book in some embodiments of the present invention. Figure 7 and Figure 8 The binding device 160 will be described.

[0120] like Figure 7 As shown, the binding device 160 includes a bending portion 162. The bending portion 162 is disposed on a side of the support platform 130 away from the forming device 150, and the bending portion 162 can bend the two ends of the paper staple 220 passing through the binding hole to fit the book.

[0121] After the two bent ends of the paper staple 220 move along the binding hole to the side of the book away from the forming device 150, for example, in some embodiments, the punch 161 is used to push the paper staple 220 to move. The two ends of the paper staple 220 extend out of the binding hole, and the bending portion 162 in this embodiment can further bend the two ends of the paper staple 220 so that the two ends of the paper staple 220 fit the book. Preferably, the bending portion 162 is configured to bend the two ends of the paper staple 220 in a direction of approaching.

[0122] According to a specific embodiment of the present invention, Figure 7 and Figure 8 As shown, the bending portion 162 includes two rotating shafts 163 and two pressing portions 164. The rotating shaft 163 is arranged on the side of the support platform 130 away from the forming device 150, and the pressing portion 164 is installed on the rotating shaft 163. The pressing portion 164 can rotate around the rotating shaft 163 to approach and press the two ends of the paper nail 220 passing through the binding hole, so that the two ends of the paper nail 220 passing through the binding hole fit the book. Preferably, the two pressing portions 164 in this embodiment rotate synchronously to avoid the two ends of the paper nail 220 being subjected to force asynchronously, causing the paper nail 220 to deform and affect the binding quality. Further, while the pressing portion 164 rotates around the rotating shaft 163, the punch 161 can abut against the paper nail 220 to avoid the crossbeam position of the paper nail 220 being lifted up when the pressing portion 164 presses on the two ends of the paper nail 220.

[0123] In a preferred embodiment of the present invention, the binding device 160 further includes a heating unit (not shown in the figure). The heating unit is disposed on one side of the two ends of the bending of the paper staple 220 in the pressing unit 164, and is capable of heating the paper staple 220. The outer side of the paper yarn 200 in this embodiment is coated with hot melt adhesive. For example, after the paper yarn 200 is spun from a paper strip, it is soaked in hot melt adhesive for treatment, and hot melt adhesive is formed within the length of the paper yarn 200. The heating unit can heat the paper staple 220 to melt the hot melt adhesive on the surface of the paper yarn 200, and stick the paper staple 220 on the book so that the paper staple 220 is fixedly connected to the book.

[0124] The heating unit may heat the paper staple 220 by electric heating. After the pressing unit 164 presses both ends of the paper staple 220 onto the book, the heating unit is powered on and heats the paper staple 220 .

[0125] Furthermore, in a preferred embodiment of the present invention, the crossbeam portion of the paper nail 220 is also heated. For example, the crossbeam portion of the paper nail 220 can be heated by using a punch 161, or the entire range of the paper nail 220 can be heated by using a heating unit to indirectly transfer heat through a book, so that the paper nail 220 is fully adhered and fixed to the book.

[0126] Fig. 9 The structure of the feeding device 110 and the cutting device 120 in some embodiments of the present invention are shown below. Fig. 9 The feeding device 110 and the cutting device 120 are described. Fig. 9 The feeding device 110 includes a roller 111 and at least one guide wheel 112 .

[0127] The paper yarn 200 is wound around the drum 111. In some embodiments, the drum 111 is a cylindrical drum with a relatively large diameter, and the paper yarn 200 is wound around the drum 111 to reduce the risk of excessive bending of the paper yarn 200, which may lead to breakage, or the fall-off of the hot melt adhesive coated on the surface. In other embodiments, the paper yarn 200 is rolled, and the drum 111 may include a fixed shaft, on which the paper yarn 200 is disposed, and may rotate around the fixed shaft to supply the paper yarn 200 to the cutting device 120.

[0128] The guide wheel 112 is arranged downstream of the roller 111. One end of the paper yarn 200 extends along the guide wheel 112 to the cutting device 120. The guide wheel 112 can guide the movement direction of the paper yarn 200. The paper yarn 200 is wound around the roller 111 in a relatively wide range, and the guide wheel 112 defines that the paper yarn 200 extends to the cutting device 120 at a relatively fixed position. In some embodiments, the feeding device 110 includes a plurality of guide wheels 112, and some of the plurality of guide wheels 112 can be driving wheels, and the other part can be driven wheels. In other embodiments, all the guide wheels 112 in the feeding device 110 are driven wheels, and the power for the paper yarn 200 to extend to the cutting device 120 is provided by the cutting device 120.

[0129] The cutting device 120 can include a cutting knife and a controller. The cutting knife is used to cut a blank 210 of a preset length from the paper yarn 200. The controller is used to control the cutting position or the cutting moment of the cutting knife. In some embodiments, the controller controls the cutting moment of the cutting knife to cut the paper yarn 200 according to the speed of the paper yarn 200, for example, to obtain a blank 210 of a preset length. Alternatively, the controller includes a ranging wheel, obtains the length of the paper yarn 200 according to the rotation angle of the ranging wheel, and controls the cutting position of the cutting knife to cut the paper yarn 200.

[0130] As Fig.10 shown, the present invention also relates to a binding method 400 for binding a book using a paper yarn. According to a preferred embodiment of the present invention, the binding method 400 can be executed by the binding device 100 in the foregoing embodiments.

[0131] In step S401, a paper yarn is provided. Preferably, the paper yarn in this step is a paper yarn with continuous length, and the surface of the paper yarn can be processed, and a hot melt adhesive is covered on the surface of the paper yarn to facilitate sticking and fixing with the book.

[0132] In step S402, a paper yarn of a preset length is intercepted to form a blank. According to a preferred embodiment of the present invention, the preset length is determined subsequently according to the book to be bound. For example, when binding a book with a larger thickness, the preset length is appropriately increased to increase the contact area between the formed paper nail and the book and improve the bonding strength between the paper nail and the book.

[0133] In step S403, both ends of the blank are bent in the same direction to form a paper nail. For example, a forming device is used to bend both ends of the blank, preferably by 90°, to form a U-shaped paper nail. The distance between both ends of the paper nail is preset, and it is ensured that the length of the bent ends in the paper nail can penetrate the thickness of the book and can be further bent to fit the book. Preferably, the lengths of the two ends of the paper nail bent in the same direction are equal.

[0134] In step S404, two binding holes are formed at preset positions in the book. The positions of the binding holes are preset on the book, and the preset positions partially overlap with the binding positions of the book. For example, the binding position is the center line of the book, and the preset position is the position of the binding holes preset on the center line. The positions and number of the binding holes are preset. After the binding is completed, the binding position corresponds to the spine position of the book. In some embodiments, the two binding holes are a group, and the distance between the two binding holes in the same group is preset to match the width between the two ends of the paper nail, so that the two ends of the paper nail can correspond to the two binding holes in the same group respectively, and extend from the two binding holes to the other side of the book.

[0135] In some embodiments, step S403 and step S404 may be performed in any order or simultaneously, which is not limited in the present invention.

[0136] In step S405, the two ends of the paper nail that are bent are passed through the book along the binding holes and fixedly connected to the book. For example, the paper nail is glued and fixed to the book, and the length range of the surface of the paper yarn is covered with hot melt adhesive, and the paper nail is heated to glue and fix the paper nail to the book. Alternatively, glue is applied at a preset position of the book, and the paper nail is pressed on the book to glue and fix the paper nail to the book. In some embodiments, the binding device can be used to drive the paper nail to pass through the book at the position of the binding hole, and the paper nail is fixedly connected to the book.

[0137] In this embodiment, paper yarn is used to bind books. The paper yarn has a certain structural strength and can meet the requirements of book binding. At the same time, the processing process of the paper yarn is simple, the cost is low, and it is easy to recycle.

[0138] Fig.11 The flow of a binding method 500 according to some preferred embodiments of the present invention is shown. The binding method 500 includes a process of heating the paper staple. The outer length of the paper yarn in this embodiment is coated with hot melt adhesive, for example, the paper strip is spun into a thread and then immersed in hot melt adhesive.

[0139] In this embodiment, steps S501, S502, S503, and S504 in the binding method 500 are substantially the same as steps S401, S402, S403, and S404 in the binding method 400 in the above-mentioned embodiment, and are not described in detail. In this embodiment, the step of passing the two bent ends of the paper nail through the book along the binding hole and fixing them to the book includes steps S5051 and S5052.

[0140] In step S5051, the two bent ends of the paper nail are bent toward the book until they fit the book. For example, after the two bent ends of the paper nail are passed through the book through the binding hole, the two ends extending from the paper nail are further bent by the binding device so that the two ends of the paper nail fit the book. Preferably, the two ends of the paper nail are bent 90° in a direction close to each other to fit the book. According to a preferred embodiment of the present invention, in the step of further bending the two ends of the paper nail, the two ends of the paper nail are bent at the same time, which can reduce the risk of deformation or displacement of the paper nail.

[0141] In step S5052, the paper nail is heated to melt the hot melt adhesive on the surface of the paper nail, and the paper nail is attached to the book. Preferably, the length of the paper nail is covered with hot melt adhesive, and the paper nail is heated to melt the hot melt adhesive within the length of the paper nail, so that the paper nail is completely attached to the book.

[0142] Finally, it should be noted that the above description is only an embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A binding device for binding books using paper yarn, the binding device comprising: a feeding device configured to provide the paper yarn; A cutting device, the cutting device being arranged downstream of the feeding device, the feeding device obtaining the paper yarn and cutting the paper yarn of a preset length to form a blank; A support platform, the book is placed on the support platform, the support platform comprises a through slot, and the through slot corresponds to a binding position in the book; A punching device, the punching device is disposed on the upper side of the support platform, the punching device is configured to move toward the support platform and penetrate the book at the binding position to form two binding holes; A forming device, which is disposed downstream of the cutting device and bends the two ends of the blank toward the support platform to form a paper nail, and the two bent ends of the paper nail are aligned with the punching device; The binding device drives the paper nail to pass through the binding hole and move to a side of the book away from the forming device, and fixes the two bent ends of the paper nail to the book.

2. The binding device according to claim 1, wherein the punching device is a hollow structure, and after the punching device forms the binding hole, the binding device drives the bent ends of the paper nail to extend along the hollow structure of the punching device to the side of the book away from the forming device.

3. The binding device according to claim 2, wherein the punching device comprises: Two punching needles are semi-frame-shaped structures, and the openings of the two punching needles are arranged opposite to each other to form the hollow structure.

4. The binding device according to claim 1, wherein the forming device comprises: a first forming portion, wherein the first forming portion fixes the blank; a second forming portion, wherein the shape of the second forming portion matches the shape of the first forming portion; The second forming part and the first forming part can move relative to each other to drive the two ends of the blank to bend. 5 . The binding device according to claim 4 , wherein the first forming portion comprises a first clamp and a second clamp, and the first clamp and the second clamp clamp and fix the blank at a middle portion of the blank.

6. The binding device according to claim 5, wherein the first clamp is arranged on a side of the second clamp away from the support platform, the second forming portion includes a first forming groove, the first forming groove is adapted to the shapes of the first clamp and the second clamp, and the first forming groove drives the two ends of the blank to bend along the side of the second clamp toward the support platform.

7. The binding device according to claim 6, wherein the second forming part further comprises a first guide groove, the first guide groove is arranged on a side of the second forming part away from the punching device, and the first guide groove penetrates the second forming part and extends into the first forming groove; the binding device comprises: The punching knife moves along the first guide groove to push the paper nail into the binding hole.

8. The binding apparatus according to claim 7, wherein the first clamp and the second clamp are movable in a direction perpendicular to the binding direction to avoid the punch and the paper staple.

9. The binding device according to claim 7, wherein the second forming part further comprises a first limiting groove, the first limiting groove is located on the inner side of the first forming groove, and both ends of the blank are bent toward the direction of the support platform along the side of the first limiting groove and the second clamp.

10. The binding device according to claim 9, wherein the first guide groove and the first limiting groove are in the same plane.

11. The binding device according to claim 4, wherein the first forming part is arranged on a side of the second forming part away from the support platform; the first forming part includes two clamping jaws, and the two clamping jaws are respectively clamped at positions close to both ends of the blank; a second forming groove is provided between the two clamping jaws, and the second forming groove is adapted to the shape of the second forming part, and the first forming part drives the blank to approach the second forming part so that the two ends of the blank are bent along the side of the second forming part toward the direction of the support platform.

12. The binding device according to claim 11, wherein the first forming part further comprises a second guide groove, the second guide groove is arranged on a side of the first forming part away from the punching device, and the second guide groove penetrates the first forming part and extends into the second forming groove; the binding device comprises: The punching knife moves along the second guide groove to push the paper nail into the binding hole.

13. The binding device according to claim 12, wherein the first forming part further comprises a second limiting groove, the second limiting groove is located on the inner side of the second forming groove, and both ends of the blank are bent toward the support platform along the second limiting groove and the side of the second forming part.

14. The binding apparatus according to claim 1, wherein the binding device comprises: The bending part is arranged on a side of the support platform away from the forming device, and the two ends of the paper nail passing through the binding hole are bent to fit the book.

15. The binding device according to claim 14, wherein the bending portion comprises: Two rotating shafts, the rotating shafts are arranged on a side of the support platform away from the forming device; Two pressing parts are installed on the rotating shaft and can rotate around the rotating shaft to approach and press the two ends of the paper nail passing through the binding hole; wherein the two pressing parts rotate synchronously.

16. The binding apparatus according to claim 15, wherein the binding device further comprises: A heating part is arranged on one side of the two ends of the bending of the paper nail in the pressing part, and heats the paper nail; the outer side of the paper yarn is coated with hot melt adhesive, and the heating part heats the paper nail to melt the hot melt adhesive in the paper yarn and stick it to the book.

17. The binding apparatus according to claim 1, wherein the feeding device comprises: a drum on which the paper yarn is wound; At least one guide wheel is arranged downstream of the drum, and one end of the paper yarn extends along the guide wheel to the cutting device.

18. The binding apparatus according to claim 1, wherein the cutting device cuts a preset length of the paper yarn according to the thickness of the book to form a blank.

19. The binding device according to claim 1, wherein one of the feeding devices, one of the cutting devices, one of the punching devices, one of the forming devices and one of the binding devices constitute a set of binding sub-devices; the binding device includes multiple groups of the binding sub-devices, and the multiple groups of the binding sub-devices are arranged along a straight line where the two binding holes are located.

20. The binding device according to claim 19, wherein a plurality of groups of the binding sub-devices move synchronously.

21. A binding method for binding a book using paper yarn, the binding method comprising: providing the paper yarn; cutting the paper yarn into a preset length to form a blank; bending the two ends of the blank toward the same direction to form a paper nail; forming two binding holes at preset positions in the book; The two bent ends of the paper nail are passed through the book along the binding hole and fixedly connected with the book.

22. The binding method according to claim 21, wherein the preset length is preset according to the thickness of the book.

23. The binding method according to claim 21, wherein the outer side of the paper yarn is coated with hot melt adhesive, and the step of passing the two ends of the paper staple through the book along the binding hole and fixedly connecting the two ends with the book comprises: Bending the two bent ends of the paper nail toward the book until they fit the book; The paper nail is heated so as to be adhered and fixed to the book.

24. The binding method according to claim 23, wherein in the step of bending the two ends of the paper staple toward the book to fit the book, the two ends of the paper staple are bent toward the book at the same time.

25. The binding method according to any one of claims 21-24, wherein the binding method is performed using a binding device according to any one of claims 1-20.

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