Plastic soft coil binding equipment

Abstract

The utility model discloses plastic soft coil binding equipment which comprises a main machine, and the main machine is sequentially provided with a coil penetrating mechanism which comprises a row grid I used for conveying rubber rings, a coil dividing assembly used for rotating and adjusting the positions of the rubber rings, a positioning assembly used for positioning a book and a pin header assembly used for pulling the rubber rings into coil penetrating holes of the book; the coil welding mechanism is used for welding the rubber rings on the book; the conveying mechanism is used for conveying the book penetrated with the rubber ring from the ring penetrating mechanism to the coil welding mechanism; the rim charge cutting mechanism is used for cutting the welded rubber ring; and the book taking mechanism is used for receiving the sheared books. According to the utility model, the book can be conveniently, accurately and stably positioned before ring penetrating through the positioning assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of bookbinding, in particular to a plastic soft coil binding device. Background Art

[0002] In the current loose-leaf binding industry, it can be divided into adhesive binding, thread binding, stapling, and ring binding. Ring binding is a relatively new binding method. Due to its beautiful appearance, perfect page-turning performance, reliable firmness, convenience and high efficiency, etc., almost all medium and high-end book bindings adopt the plastic ring binding method. At present, most traditional plastic rings are made of metal, with a too rigid texture and lacking the due sense of gentleness and intimacy with the human skin. In response to this situation, a kind of plastic soft ring appears in the market, with excellent elasticity, flexibility, appearance and texture, and extremely comfortable hand feeling. Due to the characteristics of the plastic soft ring material, the welding method is generally adopted, and pre-positioning is required before welding. At the same time, the book to be bound also needs to be positioned. Especially the positioning and fixing during the process of threading the ring through the book is crucial. For example, the coil binding device of the invention patent with the application number 202210066304.2 is a punching and binding integrated machine. Firstly, it is expensive and has a large investment cost. Secondly, it is limited by the punching structure and function. Especially for the binding of book pages with strict requirements on the page size and shape, it is not suitable for binding special-shaped pages, extra-large pages, and extra-small pages. Content of the Utility Model

[0003] The purpose of the utility model is to design a plastic soft coil binding device to solve the above-mentioned technical deficiencies.

[0004] The utility model designs a plastic soft coil binding device, which includes a main machine, and the following components are successively arranged on the main machine:

[0005] A ring threading mechanism, which includes a row of grids one for conveying the plastic rings, a ring separating component for rotating and adjusting the position of the plastic rings, a positioning component for positioning the book, and a row of needles component for pulling the plastic rings into the ring threading holes of the book;

[0006] The positioning component includes a front baffle against the front side of the book, a guiding plate for placing the book, a paper pressing cross beam above the guiding plate, and paper pressing telescopic columns installed at both ends of the paper pressing cross beam, so that the paper pressing cross beam forms elastic downward pressure relative to the guiding plate to press the book;

[0007] The positioning component further includes a lifting plate below the guiding plate, a needle seat on the lifting plate and moving up and down with the lifting plate, and a feeding hanging needle installed on the needle seat. The feeding hanging needle passes through the corresponding ring threading holes of the book from bottom to top to position the book;

[0008] A coil welding mechanism for welding the plastic rings on the book;

[0009] A side material cutting mechanism for shearing the welded plastic rings;

[0010] A conveying mechanism that clamps the booklet after threading the rubber ring and sequentially passes through a ring threading mechanism, a coil welding mechanism, and a side material cutting mechanism; and

[0011] A booklet taking mechanism that collects the cut booklets;

[0012] The positioning component further includes a stopper installed on the guide plate. The stopper abuts against the booklet, causing one end of the booklet to abut against the front baffle on the front side and the other end to abut against the stopper.

[0013] Preferably, the rubber ring separating component includes a second mounting seat that moves up and down relative to the first row of grids, a row of knives connected to the second mounting seat, and a pressing seat connected to the second mounting seat. The row of knives separates the rubber rings by moving up and down through the second mounting seat, and the pressing seat rotates and positions the separated rubber rings by moving up and down through the second mounting seat.

[0014] Further optimizing, the row of needles component includes a first mounting seat in front of the first row of grids and a row of needles arranged on the first mounting seat and capable of moving up and down relative to the first row of grids. The row of needles abuts against the rotationally positioned rubber ring and pulls the rubber ring into the ring threading holes of the booklet.

[0015] Further optimizing, the pressing paper cross beam is provided with slot holes corresponding to the rows of needles one by one.

[0016] Further optimizing, the fixed part of the pressing paper telescopic column is installed on the pressing paper cross beam. The telescopic part of the pressing paper telescopic column is arranged downward. An elastic expansion and contraction is provided between the telescopic part and the fixed part, and a pressing head is arranged at the top of the telescopic part.

[0017] Further optimizing, a plurality of jacks are provided on the needle seat, and the plurality of jacks are equidistantly distributed along the distribution direction of the ring threading holes of the booklet.

[0018] Preferably, the coil welding mechanism includes a pressing book cross beam for pressing and fixing the booklet with the rubber ring, a welding upper die and a welding lower die that are relatively movably arranged, and a ring pushing rod located in front of the welding upper die and pushing the rubber ring to deform.

[0019] Preferably, the side material cutting mechanism includes an upper cutting knife and a lower cutting knife that are vertically distributed and can be relatively movably arranged, a rear baffle located behind the lower cutting knife, and a positioning hole opened on the rear baffle for the rear end of the rubber ring handle to pass through.

[0020] Preferably, the conveying mechanism includes a first base slidably connected to the main machine, a first lower chuck connected to the first base, and a first upper chuck slidably connected to the first lower chuck. The top of the first upper chuck extends above the first lower chuck, so that the first upper chuck can reciprocate up and down relative to the first lower chuck to clamp the booklet.

[0021] For further optimization, the conveying mechanism further includes a second base slidably connected to the main machine, a second lower chuck connected to the second base, and a second upper chuck rotatably connected to the second base. The top of the second upper chuck extends above the second lower chuck, so that the second upper chuck can reciprocally rotate to the second lower chuck to clamp the book block.

[0022] The technical effect of the present utility model is that the book block to be looped is positioned by the positioning assembly. Pressing paper telescopic columns are arranged at both ends of the pressing paper cross beam in the positioning assembly. As the pressing paper cross beam moves downward, the telescopic ends of the pressing paper telescopic columns abut against the guiding plate where the book block is located. When the pressing paper cross beam presses the book block, it forms elastic downward pressure, playing a role of buffering and limiting the book block. It can not only avoid damaging the book block, but also be applicable to book blocks of different thicknesses.

[0023] The positioning assembly further includes a front baffle abutting against the front side of the book block, a stop block located on the right side of the book block, and a lifting plate located below the front lower part of the book block. Feeding hanging needles are arranged on the lifting plate, and the feeding hanging needles pass through the loop holes at both ends of the book block from bottom to top to fix the book block, playing a role of hole positioning for the book block.

[0024] One end of the book block abuts against the front baffle, and a stop block abuts against the other opposite end, so that the stop block forms edge positioning for the book block. The two kinds of positioning greatly improve the positioning stability and accuracy of the book block, and avoid the offset and shaking of the book block.

[0025] The feeding hanging needles are installed on the lifting plate through needle seats. A plurality of jacks are arranged on the needle seats, and the feeding hanging needles are inserted into the jacks. By adjusting the positions where the feeding hanging needles are inserted into different jacks, the positioning of book blocks of different sizes can be realized.

[0026] The conveying mechanism includes an upper chuck and a lower chuck. The lower chuck is located below the book block, and the upper chuck can move up and down relative to the lower chuck, so that the upper chuck moves down to the lower chuck and forms clamping or releasing of the book block between the upper chuck and the lower chuck. The structure is simple and easy to implement, and the present utility model includes two clamping structures of different sizes. It can not only clamp two identical book blocks for production at the same time, but also clamp book blocks of different specifications and models respectively for synchronous production, improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the overall machine structure diagram of the present utility model;

[0028] Figure 2 is the partial view of the coil welding mechanism in the present utility model;

[0029] Figure 3 is the partial view of the side material cutting mechanism in the present utility model;

[0030] Figure 4 is the structure diagram of the looping mechanism in the present utility model;

[0031] Figure 5 is the front structure diagram of the positioning component in the present utility model (excluding the stop block);

[0032] Figure 6 is Figure 5 the enlarged view at position A in;

[0033] Figure 7 is the front structure diagram of the positioning component in the present utility model (with the stop block);

[0034] Figure 8 is the back structure diagram of the positioning component in the present utility model;

[0035] Figure 9 is the structure diagram of the conveying component in the present utility model;

[0036] Figure 10 is the structure diagram of the rubber ring row in the present utility model.

[0037] In the figure: 1. Main machine; 2. Ring threading mechanism; 21. First row of grids; 22. Second mounting seat; 23. Row of knives; 24. Lower pressing seat;

[0038] 3. Needle row component; 31. First mounting seat; 32. Needle row;

[0039] 4. Positioning component; 41. Guide plate; 42. Paper pressing telescopic column; 421. Fixed part; 422. Telescopic part; 423. Lower pressing head; 43. Lifting plate; 44. Needle seat; 45. Feeding hanging needle; 46. Jack; 47. Paper pressing cross beam; 48. Slot hole; 49. Stop block; 410. Front baffle;

[0040] 5. Coil welding mechanism; 51. Pressing cross beam for book; 52. Welding upper die; 53. Welding lower die; 54. Ring dialing rod; 55. Rectangular frame;

[0041] 6. Conveying mechanism; 61. First base; 62. First lower clamp; 63. First upper clamp; 64. Second base; 65. Second lower clamp; 66. Second upper clamp;

[0042] 7. Side material cutting mechanism; 71. Upper cutting knife; 72. Lower cutting knife; 73. Rear baffle; 74. Positioning hole;

[0043] 8. Book taking mechanism; 9. Rubber ring; 10. Booklet. Specific implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0045] For the rubber rings 9 in the present invention, taking the rubber ring 9 rows as an example, the ring threading is demonstrated. Multiple single open-ring-shaped rubber rings 9 are arranged at intervals to form rows of rubber rings 9, and they are directly injection-molded. The front end of the head of each rubber ring 9 protrudes forward, and the back is concave. Multiple rows of rubber rings 9 are concavely and convexly fitted to form a multi-row structure. The specific structure of the unformed rubber rings 9 (i.e., rubber ring strips) and the formed rubber rings 9 can refer to the consumable body in the utility model patent "A Consumable Structure for Loose-leaf Binding" with the patent number "202120352705.5".

[0046] The present invention includes a main body 1, on which a ring threading mechanism 2, a conveying mechanism 6, a coil welding mechanism 5, a side material cutting mechanism 7 and a book taking mechanism 8 are successively arranged. A controller is also provided on the main body 1 for controlling the coordinated operation of the above-mentioned mechanisms.

[0047] Specifically, the ring threading mechanism 2 includes a row grid 21, a ring separating component, a positioning component 4 and a row needle component 3. A connecting plate is provided on the main body 1, and the row grid 21 is arranged on the connecting plate. A plurality of plate structures fixedly arranged at intervals on the connecting plate form the row grid 21; the ring separating component is arranged close to the row grid 21. The ring separating component includes a mounting seat 22, a row of knives 23 and a pressing seat 24. The two sides of the row grid 21 are slidably connected to the mounting seat 22, that is, the row grid 21 can slide along the mounting seat 22. The mounting seat 22 is fixedly provided with a row of knives 23 in sequence along the extending direction of the channel formed on the row grid 21. The row of knives 23 is formed by a plurality of blades spaced apart. The principle is the same as that of the row grid 21. The row of knives 23 is located in front of the row grid 21. The pressing seat 24 is located at the position where the mounting seat 22 is close to the row of knives 23. The bottom end of the pressing seat 24 is higher than the tip of the row of knives 23. In order to facilitate the full pressing of the rubber rings 9, convex blocks, such as L-shaped ones, are formed at intervals on the bottom surface of the pressing table. In this embodiment, a cylinder or hydraulic cylinder type telescopic mechanism is fixed on the side of the connecting plate, and the telescopic end of the telescopic mechanism is connected to the mounting seat 22 to drive the mounting seat 22 to move up and down reciprocally relative to the row grid 21.

[0048] The multi-row rubber rings 9 conveyed in the form of manual or push plate through the channel formed by the row grid 21 are conveyed to the front end of the row grid 21. The tip of the row of knives 23 is inserted into the gap between adjacent rubber rings 9 to separate the rubber rings 9. Continuing to press down causes the pressing table to also press down, so that the row of rubber rings 9 rotates to nearly 90 degrees, and the tail end of the rubber rings 9 changes from the downward position to a nearly horizontal placement.

[0049] For the specific structure and function description of the loop threading mechanism 2, reference can be made to the loop threading mechanism 2 in the invention "coil binding device" with the patent number "202210066304.2".

[0050] The needle row component 3 includes a first mounting seat 31 and needle rows 32. The first mounting seat 31 is located in front of the first row of grids 21, and the needle rows 32 are arranged on the first mounting seat 31. Driven by the telescopic mechanism, the needle rows 32 can move up and down relative to the first row of grids 21 to press the book to be loop-threaded. Multiple needle bodies are arranged in a row to form the needle rows 32. The top ends of the needle rows 32 are V-shaped or crescent-shaped. The book 10 can be placed on a platform or a shelf below the paper pressing cross beam 47. The needle rows 32 are located below the book 10. A plurality of loop threading holes are spaced apart on one side of the book 10 for the needle rows 32 to push the rubber rings 9 into the loop threading holes one by one.

[0051] For the specific structure and function description of the needle row 32 mechanism, reference can be made to the needle row 32 mechanism in the invention "coil binding device" with the patent number "202210066304.2".

[0052] The positioning component 4 includes a guiding plate 41, a paper pressing cross beam 47, paper pressing telescopic columns 42, a lifting plate 43, a needle seat 44 and a feeding hanging needle 45. The guiding plate 41 is horizontally arranged in front of the first row of grids 21. The book 10 to be loop-threaded is placed on the guiding plate 41 and aligned. The paper pressing telescopic columns 42 are located above the guiding plate 41 and installed at both ends of the paper pressing cross beam 47. The number of the paper pressing telescopic columns 42 is two. The paper pressing telescopic columns 42 are hydraulic or electric-driven telescopic columns, which include a fixed part 421 and a telescopic part 422. The fixed part 421 is fixed on the paper pressing cross beam 47 through a fixed bolt. The telescopic part 422 extends and retracts downward. The telescopic part 422 is elastically telescopic. A downward pressing head 423 is arranged at the top end of the telescopic part 422. The end face of the downward pressing head 423 is a plane. When the paper pressing telescopic part presses down with the paper pressing cross beam 47, the downward pressing head 423 can press down onto the guiding plate 41, and the paper pressing cross beam 47 presses the book 10 to elastically press down the book 10, avoiding damaging the book 10 and being applicable to books 10 of different thicknesses at the same time. In addition, by loosening the fixed bolt, the height position of the paper pressing telescopic column 42 can be adjusted to achieve the effect of adjusting the height position of the paper pressing telescopic column 42.

[0053] The positioning component 4 further includes a front baffle 410. The front baffle 410 is located on the front side of the book block 10 and abuts against the front side of the book block 10, playing a role in aligning the book block 10. Below the guiding plate 41, there is a lifting plate 43. A lifting mechanism is provided on the lifting plate 43. The lifting mechanism includes a telescopic rod. The telescopic end of the telescopic rod is arranged upward. A connecting rod perpendicular to the telescopic end is provided on the telescopic end of the telescopic rod. A connecting plate is fixed on the connecting rod. The lifting plate 43 is installed on the top of the connecting plate. Through the push of the telescopic rod, the lifting plate 43 can perform a lifting action. A needle base 44 is provided on the lifting plate 43. The needle base 44 extends along the distribution direction of the row of grids 21. A plurality of side-by-side jacks 46 are provided on the needle base 44. The jacks 46 are used for inserting the feeding hanging needles 45. Each jack 46 allows one feeding hanging needle 45 to be inserted. The plurality of jacks 46 facilitate the feeding hanging needles 45 to be inserted at different positions to correspond to the piercing holes at both ends of the book block 10. Since the book block 10 abuts against the front baffle 410, the feeding hanging needles 45 can accurately be inserted into the piercing holes of the book block 10 from bottom to top to position the book block 10, facilitating the rubber rings 9 to accurately be positioned to the piercing holes of the book block 10 and preventing the book block 10 from shifting or shaking during piercing, that is, the feeding hanging needles 45 form hole positioning for the book block 10, enabling the book block 10 to be positioned more stably.

[0054] Both ends of the paper pressing cross beam 47 are provided with brackets. The top ends of the brackets are bent and fixed to the paper pressing cross beam 47. The paper pressing cross beam 47 is placed horizontally. One bracket is respectively arranged at both ends thereof and fixed to the bent top of the bracket. A telescopic mechanism is provided at the bottom of the bracket. The telescopic end of the telescopic mechanism drives the bracket to move up and down, thereby realizing the downward pressing of the paper pressing cross beam 47. Forming slot holes 48 are spaced on the bottom surface of the paper pressing cross beam 47 to cooperate with the row of needles 32 below, facilitating the row of needles 32 to push the rubber rings 9 up to pass through the slot holes 48.

[0055] In this embodiment, the number of the feeding hanging needles 45 is two, which are respectively located at both ends of the needle base 44, that is, used to position the piercing holes at both ends of the book block 10. The position of the feeding hanging needles 45 is adjusted to adapt to book blocks 10 of different sizes.

[0056] The coil welding mechanism 5 mainly includes a frame plate, a book pressing cross beam 51, a rotating frame, a welding upper die 52, a welding lower die 53 and a coil pushing rod 54. In this embodiment, the rotating frame includes a rectangular frame body 55 and a second connecting rod. The tail end part of the rectangular frame body 55 is hinged to the main machine 1 through a hinge seat. The axial center line of the rectangular frame body 55 is the rotation center line of the frame body. The welding upper die 52 and the welding lower die 53 pass through the frame opening of the rectangular frame body 55 and abut against each other to form welding. It should be noted that the welding head for welding is fixed to the bottom of the welding upper die 52. A platform or a conveyor belt can be selectively placed on one side of the gap between the welding upper die 52 and the welding lower die 53. After the piercing of the book block 10 is completed, it is conveyed to the lower part of the book pressing cross beam 51 for welding. The specific model of the welding mechanism is a conventional model on the market and will not be elaborated here.

[0057] The leading end of the rectangular frame 55 is a coil-pushing rod 54 for deforming the rubber coil 9. A number of card slots are spaced apart on the coil-pushing rod 54 for docking with the rubber coil 9 on the notebook 10.

[0058] The book-pressing cross beam 51 includes a cross beam and a displacement mechanism. The cross beam is located above the notebook 10 and connected to the displacement mechanism. The displacement mechanism adopts a linear movement type. The displacement mechanism is hinged to the bottom plate through a hinge seat installed on the bottom plate. The moving end of the vertically installed displacement mechanism is hinged to a horizontally installed connecting rod. One connecting rod is installed on the side of each of the support plates. A cross bar is connected between the two connecting rods to form a frame type. A shaft body is fixed between the two connecting rods. The shaft body passes through the hinge seat on the support plate to form a hinged connection method. A cross beam is connected between the ends of the connecting rod above the notebook 10, and the cross beam is moved synchronously by moving the connecting rod with the displacement mechanism.

[0059] The side material cutting mechanism 7 includes an upper cutter 71, a lower cutter 72, a rear baffle 73 and a positioning hole 74 on the rear baffle 73. The upper cutter 71 and the lower cutter 72 are distributed up and down and can move relative to each other under the drive of the moving mechanism to form a shear. A positioning pressing plate is also provided on the front side of the upper cutter 71 and is arranged in relative cooperation with the lower cutter 72 to limit the rubber coil 9. The positioning pressing plate can directly abut against the upper cutter 71 or be spaced apart and abutted against the upper cutter 71 through other intermediate members. The intermediate members can be arranged on the positioning pressing plate, the upper cutter 71 or the main machine 1. The rear baffle 73 is located behind the cutter of the upper cutter 71. A number of rubber coil 9 handle positioning holes 74 for the rear end of the handle of the rubber coil 9 to pass through are provided on the rear baffle 73. The rear baffle 73 is movable through a sliding mechanism, so that the rear baffle 73 cooperates and abuts against the convex part after the rubber coil 9 is welded. By adjusting the position of the rear baffle 73, the length of the connection part after the rubber coil 9 is welded is adjusted. For the specific structures and functions of the above coil welding mechanism 5 and side material cutting mechanism 7, reference can be made to the coil welding mechanism 5 and side material cutting mechanism 7 in the invention "coil binding equipment" with the patent number "202210066304.2".

[0060] The conveying mechanism 6 includes a base one 61, a lower chuck one 62 and an upper chuck one 63. The base one 61 is slidably connected to the main machine 1 through a sliding mechanism. The lower chuck one 62 is connected to the base one 61 and slides with the base one 61. The upper chuck one 63 is slidably connected to one side of the lower chuck one 62 by the connection method of a slider and a slide rail. The sliding direction of the upper chuck one 63 is vertical relative to the lower chuck one 62. The top of the upper chuck one 63 extends above the lower chuck one 62. Anti-slip textures are provided on the opposite surfaces of the upper chuck one 63 and the lower chuck one 62, so that the upper chuck one 63 can move up and down reciprocally relative to the lower chuck one 62 to form a clamping, so as to clamp one side of the notebook 10, and finally the conveying of the notebook 10 is realized by the sliding of the base one 61.

[0061] Further, the conveying mechanism 6 further includes a second base 64 slidably connected to the main machine 1. The second base 64 can be slidably connected to the main machine 1 by the connection method of a slider and a slide rail alone, or can be fixed to the first base 61, and the first base 61 is used to drive the second base 64 to slide. A second lower chuck 65 is provided on the second base 64. The second lower chuck 65 reciprocates with the second base 64. The second chuck is connected to the second base 64 through a rotating mechanism. The rotating mechanism can be driven by a motor. The top of the second upper chuck 66 extends above the second lower chuck 65. Anti-slip textures are also provided on the opposite surfaces between the second upper chuck 66 and the second lower chuck 65. When the second upper chuck 66 rotates to the second lower chuck 65, clamping is formed between the second upper chuck 66 and the second lower chuck 65.

[0062] In summary, the two clamping structures of the first upper chuck 63 and the first lower chuck 62, and the second upper chuck 66 and the second lower chuck 65 usually adopt two different sizes. Therefore, the two notebooks 10 can be clamped and conveyed simultaneously. The two notebooks 10 can be of the same specification model or different specification models, improving the production efficiency. It should be noted that the conveying mechanism 6 conveys the notebook 10 from the punching mechanism 2 to the coil welding mechanism 5, and then conveys it to the side material cutting mechanism 7, that is, the entire binding process is conveyed through the conveying mechanism 6.

[0063] In addition, the positioning component further includes a stop block 49. A waist-shaped hole is provided on the stop block 49 along the length direction of the notebook 10. A fastener is inserted into the waist-shaped hole. The stop block 49 is fixed to the conveying position of the main machine 1 or the guide plate 41 through the fastener. The stop block 49 can be adjusted in position along the conveying direction through the cooperation of the waist-shaped hole and the fastener, so that the stop block 49 can abut against notebooks 10 of different sizes. One end of the notebook 10 abuts against the front baffle 410 at the front end, and the other end is abutted by the stop block 49 to form side positioning for the notebook 10. The above two types of positioning, hole positioning and side positioning, can be used simultaneously or separately.

[0064] The book-taking mechanism 8 directly adsorbs on the surface of the notebook 10 by means of a suction cup structure for transfer. For the specific structure and function description, reference can be made to the automatic book-taking mechanism in the utility model patent "A punching and binding integrated device for notebooks" with the patent number "201820937706.4".

[0065] It should be noted that the lifting mechanism, sliding mechanism, moving mechanism and displacement mechanism in the present utility model are all conventional technical means and will not be elaborated here. For specific details, reference can be made to the above-cited patent.

[0066] The present utility model is not limited to the above-mentioned best implementation manner. Anyone can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as the present application, it falls within the protection scope of the present utility model.

Claims

1. A plastic soft coil binding device, characterized in that: The invention comprises a main machine (1), wherein the main machine (1) is provided with: a ring threading mechanism (2), comprising a row grille (21) for conveying a rubber ring (9), a ring dividing assembly for rotating and adjusting the position of the rubber ring (9), a positioning assembly (4) for positioning the booklet (10), and a needle assembly (3) for pulling the rubber ring (9) into the ring threading hole of the booklet (10); The positioning assembly (4) comprises a front baffle (410) abutting against the front side of the book (10), a guide plate (41) for placing the book (10), a paper pressing beam (47) located above the guide plate (41), and paper pressing telescopic columns (42) installed at both ends of the paper pressing beam (47), so that the paper pressing beam (47) forms an elastic downward pressure relative to the guide plate (41) to press the book (10); The positioning assembly (4) further comprises a lifting plate (43) located below the guide plate (41), a needle seat (44) located on the lifting plate (43) and moving up and down with the lifting plate (43), and a loading hanging needle (45) mounted on the needle seat (44), wherein the loading hanging needle passes through the corresponding loop holes of the booklet (10) from bottom to top to position the booklet (10); The coil welding mechanism (5) welds the rubber ring (9) on the booklet (10); The edge material cutting mechanism (7) is used to shear the welded rubber ring (9); The conveying mechanism (6) holds the booklet (10) after the rubber ring (9) is inserted and sequentially passes through the ring inserting mechanism (2), the coil welding mechanism (5) and the edge material cutting mechanism (7); and Take the mechanism (8) and collect the cut book (10); The positioning assembly (4) further comprises a stopper (49) mounted on the guide plate (41), wherein the stopper (49) abuts against the booklet (10), so that one end of the booklet (10) abuts against the front stopper (410) at the front side, and the other end abuts against the stopper (49).

2. A plastic soft coil binding device according to claim 1, characterized in that: The ring separation assembly comprises a mounting seat 2 (22) which moves up and down relative to a row grille 1 (21), a row knife (23) connected to the mounting seat 2 (22), and a lower pressure seat (24) connected to the mounting seat 2 (22); the row knife (23) moves up and down through the mounting seat 2 (22) to separate the rubber rings (9); and the lower pressure seat (24) moves up and down through the mounting seat 2 (22) to rotate and adjust the separated rubber rings (9).

3. A plastic soft coil binding device according to claim 2, characterized in that: The needle assembly (3) comprises a mounting seat (31) located in front of the row grille (21) and a needle (32) arranged on the mounting seat (31) and capable of moving up and down relative to the row grille (21); the needle (32) contacts the rubber ring (9) after rotation and adjustment and pulls the rubber ring (9) into the ring hole of the booklet (10).

4. The plastic soft coil binding device according to claim 3, characterized in that: The paper pressing beam (47) is provided with slot holes (48) corresponding one to one with the row needles (32).

5. The plastic soft coil binding device according to claim 4, characterized in that: The fixed part (421) of the paper pressing telescopic column (42) is installed on the paper pressing cross beam (47), the telescopic part (422) of the paper pressing telescopic column (42) is arranged downward, the telescopic part (422) and the fixed part (421) are elastically telescopic, and a downward pressure head (423) is arranged at the top of the telescopic part (422).

6. The plastic soft coil binding device according to claim 5, characterized in that: The needle seat (44) is provided with a plurality of insertion holes (46), and the plurality of insertion holes (46) are distributed equidistantly along the distribution direction of the loop holes of the booklet (10).

7. The plastic soft coil binding device according to claim 1, characterized in that: The coil welding mechanism (5) comprises a book pressing crossbeam (51) for pressing down and fixing a book (10) with a rubber ring (9), a welding upper die (52) and a welding lower die (53) which are relatively movable, and a coil moving rod (54) which is located in front of the welding upper die (52) and pushes the rubber ring (9) to deform.

8. The plastic soft coil binding device according to claim 1, characterized in that: The edge material cutting mechanism (7) comprises an upper cutting knife (71) and a lower cutting knife (72) which are arranged vertically and relatively movable, a rear baffle plate (73) located behind the lower cutting knife (72), and a positioning hole (74) formed on the rear baffle plate (73) for the rear end of the handle of the rubber ring (9) to pass through.

9. The plastic soft coil binding device according to claim 1, characterized in that: The conveying mechanism (6) comprises a base (61) slidably connected to the main machine (1), a lower clamp (62) connected to the base (61), and an upper clamp (63) slidably connected to the lower clamp (62), wherein the top of the upper clamp (63) extends above the lower clamp (62), so that the upper clamp (63) can move up and down relative to the lower clamp (62) to clamp the book (10).

10. The plastic soft coil binding device according to claim 9, characterized in that: The transmission mechanism (6) also includes a base 2 (64) slidably connected to the main machine (1), a lower clamp 2 (65) connected to the base 2 (64), and an upper clamp 2 (66) rotatably connected to the base 2 (64), wherein the top of the upper clamp 2 (66) extends above the lower clamp 2 (65), so that the upper clamp 2 (66) can reciprocate and rotate to the lower clamp 2 (65) to clamp the book (10).

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