Plastic unicoil binding equipment

Abstract

The utility model provides plastic unicoil binding equipment which comprises a machine body, and a ring pressing and penetrating mechanism, a book pressing mechanism and a shearing and bending mechanism are arranged on the machine body. The pressing ring penetrating mechanism comprises three pressing rollers, an annular wire groove is formed in the surface of each pressing roller, two pressing rollers are driven by a pressing roller lifting plate to be close to and lifted up towards the other pressing roller, the two ends of each pressing roller are provided with a pressing roller positioning piece and a spiral positioning shaft respectively, and the pressing rollers are driven by a servo motor to rotate synchronously. The book pressing mechanism comprises a book pressing bottom plate and a book pressing air cylinder, the movable end of the book pressing air cylinder is connected with a book pressing plate, and the book pressing bottom plate is parallel to the central axis; the shearing and bending mechanism comprises a pair of shearing and bending cutters, and the working positions of cutter head parts are located in the areas between the pressing rollers. According to the binding equipment, a three-roller driving binding mode is adopted, the three pressing rollers are matched with one another to press the coil, the coil is synchronously rotated and driven to conduct ring penetrating binding, the working stability is greatly improved compared with existing equipment, the automation degree is high, and the machining efficiency and the product percent of pass can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of book-type product processing and manufacturing equipment, and specifically relates to a plastic single-coil binding device. Background Art

[0002] In books and calendars, using plastic single coils for binding is a common method, which has the characteristics of low cost and easy page turning. When binding with plastic single coils, the processed spiral single coils are inserted into the binding holes of the book one by one from one side by rotating. Existing single coil binding equipment mostly uses a single roller to drive the coil, which has insufficient driving power, poor stability, high defective rate, and usually requires manual operation by operators. The degree of automation is low and it is not suitable for highly automated assembly line operations. Utility Model Content

[0003] In view of the defects of the prior art, the utility model provides a three-roller driven plastic single coil binding device with higher processing stability and automation. To achieve the above technical objectives, the technical solutions adopted by the utility model are as follows:

[0004] A plastic single-coil binding device comprises a machine body, on which a ring pressing mechanism, a book pressing mechanism and a shearing and bending mechanism are arranged; the ring pressing mechanism comprises three pressure rollers which are parallel to each other and flush at both ends and are distributed in a herringbone shape, and the surface of each pressure roller is provided with a plurality of annular wire grooves which are equidistantly distributed along the length direction, and each pressure roller is provided with a bearing support rod near both ends, wherein the bearing support rod on one of the pressure rollers is connected to the machine body, and the bearing support rods on the other two pressure rollers are connected to a pressure roller lifting plate, and the pressure roller lifting plate is parallel to the pressure roller, and a ring pressing cylinder which is vertically facing the pressure roller is arranged on the machine body, and the pressure roller lifting plate is connected to the movable end of the ring pressing cylinder, and when the ring pressing cylinder is actuated, the two pressure rollers are driven to approach and lift to another pressure roller through the pressure roller lifting plate, and when the three pressure rollers are close to each other, The line connecting the centers of the tangent circles of the circumferential surfaces of each pressure roller is defined as the central axis. A pressure roller positioning piece is provided at one end of the central axis, and a spiral positioning shaft is provided at the other end. The pressure roller positioning piece has a conical surface facing inward, and the pressure roller is provided with a positioning wheel and a synchronous pulley at the end close to the pressure roller positioning piece. When the pressure rollers approach each other, the positioning wheel abuts against the conical surface. A servo motor is provided on the machine body, and the pressure rollers can be driven by the servo motor to rotate synchronously in the same direction; the pressing mechanism includes a pressing base plate and a pressing cylinder perpendicular to the pressing base plate, and the movable end of the pressing cylinder is connected to a pressing plate parallel to the pressing base plate, and the pressing base plate is parallel to the central axis; the shearing and bending mechanism includes a pair of shearing and bending knives, and the working position of the shearing and bending knife head part is in the area between the pressure rollers.

[0005] Preferably, the position of the pressure roller positioning member along the central axis is adjustable.

[0006] Furthermore, the bearing support rod is connected to the machine body and the pressure roller lifting plate via a support, and the connection angle between the bearing support rod and the support is adjustable.

[0007] Preferably, a limiting column is provided at one end of the pressure roller lifting plate along the moving direction of the pressure ring cylinder, and a stop block is provided on the machine body. When the pressure rollers are in a close state, the limiting column presses against the stop block.

[0008] Preferably, a spiral groove is provided on the circumferential surface of the main body of the spiral positioning shaft, and extends into the corresponding area of ​​the annular groove along the central axis. The outer end of the spiral positioning shaft is provided with an L-shaped connecting part with the main body, and the connecting part is fixedly connected to the machine body.

[0009] Preferably, the pressing bottom plate and the pressing plate are provided with comb teeth matching the spacing of the annular wire grooves at one end facing the central axis, and the comb teeth extend into the area between the pressing rollers.

[0010] Preferably, the shearing and bending mechanism includes a transverse plate parallel to the pressure roller, and a shearing cylinder is provided on the machine body perpendicular to the central axis. The transverse plate is driven by the shearing cylinder to reciprocate toward the central axis. Two mounting blocks are provided on the transverse plate, and the shearing and bending knives are connected to the mounting blocks. The positions of the mounting blocks and the shearing and bending knives along the length direction of the transverse plate are adjustable.

[0011] Compared with the prior art, the beneficial effect of the utility model lies in: adopting a three-roller driven binding method, the three pressure rollers cooperate with each other to press the coil, and synchronously rotate the drive coil to perform ring binding. The working stability is greatly improved compared with the existing equipment, the degree of automation is high, and the processing efficiency and product qualification rate can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : A schematic diagram of a three-dimensional structure of the utility model from a viewing angle.

[0013] Figure 2 : Figure 1 Schematic diagram of the local structure at point A.

[0014] Figure 3 : Schematic diagram of the three-dimensional structure of the utility model from the second viewing angle.

[0015] Figure 4 : Figure 3 Schematic diagram of the local structure at point B.

[0016] Figure 5 : A schematic diagram of the partial structure of the medium pressure ring threading mechanism of the utility model.

[0017] Figure 6 : A front structural schematic diagram of the utility model.

[0018] In each figure: 1. machine body; 2. pressing ring through ring mechanism; 21. pressing roller; 211. annular wire groove; 212. bearing support rod; 213. central axis; 214. positioning wheel; 215. synchronous pulley; 22. pressing roller lifting plate; 23. pressing ring cylinder; 24. pressing roller positioning piece; 241. conical surface; 25. spiral positioning shaft; 251. connecting part; 26. servo motor; 27. support; 28. limiting column; 29. ​​stop block; 3. pressing mechanism; 31. pressing bottom plate; 32. pressing cylinder; 33. pressing plate; 34. comb teeth; 4. shearing and bending mechanism; 41. shearing and bending knife; 42. horizontal plate; 43. shearing cylinder; 44. mounting block. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The utility model provides a plastic single coil binding device, referring to Figures 1 to 4As shown, it includes a machine body 1, on which a ring pressing mechanism 2, a book pressing mechanism 3 and a shearing and bending mechanism 4 are provided. The ring pressing mechanism 2 includes three press rollers 21 that are parallel to each other and flush at both ends and are distributed in a herringbone shape. The surface of each press roller 21 is provided with a plurality of annular wire grooves 212 that are equidistantly distributed along the length direction. The spacing of the annular wire grooves 212 matches the spacing between each circle of the binding coil to be used. The distribution of the annular wire grooves 212 on adjacent press rollers 21 is staggered by one-third of the spacing. Each press roller 21 is provided with a bearing support rod 212 near both ends. The bearing support rod 212 on one of the press rollers 21 is connected to the machine body 1, and the bearing support rods 212 on the other two press rollers 21 are connected to a press roller lifting plate 22. A bearing is provided between the bearing support rod 212 and the press roller 21, and the press roller 21 can be axially rotated with the bearings at both ends as fulcrums. The pressure roller lifting plate 22 is parallel to the pressure roller 21, and a pressure ring cylinder 23 is provided on the machine body 1 and is vertically facing the pressure roller 21. The pressure roller lifting plate 22 is connected to the movable end of the pressure ring cylinder 23. When the pressure ring cylinder 23 performs a telescopic movement, the two pressure rollers 21 connected thereto are driven to approach or lift up the other pressure roller 21 through the pressure roller lifting plate 22. When the three pressure rollers 21 are in a state of being close to each other, they are distributed in an equilateral triangle, and a line connecting the centers of the tangent circles of the circumferential surfaces of the pressure rollers 21 is defined as a central axis 213. A pressure roller positioning member 24 is provided at one end of the central axis 213, and a spiral positioning shaft 25 is provided at the other end. The pressure roller positioning member 24 has a conical surface 241 facing inward along the central axis 213. Each pressure roller 21 is provided with a positioning wheel 214 and a synchronous pulley 215 at one end close to the pressure roller positioning member 24. When the pressure rollers 21 are close to each other, the positioning wheel 214 abuts against the conical surface 241. The contact and cooperation between the positioning wheel 214 and the conical surface 241 ensures that the three pressure rollers 21 are at an equal distance from the central axis 213 when they are close to each other. The machine body 1 is provided with a servo motor 26, and a synchronous belt is connected between the output end of the servo motor 26 and each synchronous pulley 25. Each pressing roller 21 can be driven by the servo motor 26 to rotate synchronously in the same direction through the synchronous pulley 215. In specific applications, a plurality of synchronous belt support wheels can be provided at the machine body 1 or the bearing support rod 212, etc., which can achieve a better tensioning effect. The pressing mechanism 3 includes a pressing base plate 31 and a pressing cylinder 32 perpendicular to the pressing base plate 31. Figure 3As shown, the movable end of the book pressing cylinder 32 is connected to a book pressing plate 33 parallel to the book pressing bottom plate 31. The book pressing cylinder 32 is moved to push the book pressing plate 33 to press the book to be bound onto the book pressing bottom plate 31. The book pressing bottom plate 31 is parallel to the central axis 213. The shearing and bending mechanism 4 includes a pair of shearing and bending knives 41. The working position of the blade part of the shearing and bending knife 41 is located in the area between the pressure rollers 21. The distance between the two shearing and bending knives 41 is adapted to the size of the book. The coil shearing and bending knife 41 belongs to the existing conventional equipment, so its structure and working principle are not described in detail. The working process and working principle of the equipment are as follows: a single coil is pre-sleeved on the spiral positioning shaft 25 by the end, and the spiral positioning shaft 25 performs axial positioning on the coil, a pressure roller 21 is kept stationary, and a section of the coil ring at the end of the single coil is embedded in the annular wire groove 212 on the pressure roller 21; when the binding operation starts, the conveying mechanism conveys the book to be bound to the binding position, and the pressing cylinder 32 moves to push the pressing plate 33 to press the book tightly against the pressing bottom plate 31. The conveying and feeding mechanism of the book does not belong to the part of the equipment provided by the utility model, and for those skilled in the art, the conveying and limiting of the book are conventional technical means, so the specific structure of the conveying mechanism is not specifically described in this technical solution; then the pressing ring cylinder 23 presses the two pressing rollers 21 down and the stationary pressing rollers 21 through the pressing roller lifting plate 22 The distance between the three pressing rollers 21 is adapted to the diameter of the single coil, and the distance is pre-set and controlled by the contact cooperation between the positioning wheel 214 and the conical surface 241. The coil rings of the single coil are respectively embedded in the annular wire grooves 212 of the three pressing rollers 21, and the plastic single coil is pressed between the three pressing rollers 21. The servo motor 26 drives the three pressing rollers 21 to rotate synchronously in the same direction. When the pressing rollers 21 rotate, the single coil is driven to rotate synchronously, and the single coil moves forward in a spiral motion along the direction of the central axis 213. The single coils are inserted into the binding holes of the book one by one. When the ring is inserted, the servo motor 26 stops working, and the pressing cylinder 23 drives the pressing roller lifting plate 22 to lift the two upper pressing rollers 21. The shearing and bending knife 41 works to shear and bend the coil, and the conveying mechanism withdraws the book from the binding position and transmits it to the next station. When the subsequent book is bound, after the coil is cut, the front end of the bound coil remains on the spiral positioning shaft 25 and embedded in the annular wire groove 212 of one of the pressure rollers 21. The subsequent binding can be carried out continuously without manual intervention. When the binding operation is carried out, the single coil needs to be fed in a rotating state, and can be synchronized with the coil forming equipment separately arranged at the front end. The equipment adopts a three-roller driven binding method. The three pressure rollers 21 cooperate with each other to press the coil, and synchronously rotate the drive coil for ring binding. The stability of the ring is greatly improved compared with the existing equipment, and the degree of automation is high, which can effectively improve the processing efficiency and product qualification rate.

[0021] In order to adapt to coils of different sizes and to make the pressure roller 21 press the coil with appropriate force, in a preferred embodiment, the position of the pressure roller positioning member 23 along the central axis 213 is adjustable left and right. Furthermore, the bearing support rod 212 is connected to the machine body 1 and the pressure roller lifting plate 22 through the support 27, and the connection angle between the bearing support rod 212 and the support 27 is adjustable. Before binding, the connection angle between the bearing support rod 212 and the support 27 is adjusted to a suitable position and then tightened.

[0022] In a preferred embodiment, referring to Figure 3 and Figure 5 As shown, a limit column 28 is provided at one end of the pressure roller lifting plate 22 along the moving direction of the pressure ring cylinder 23, and a stop block 29 is provided on the machine body 1. When the pressure ring cylinder 23 drives the pressure roller 21 to be in a close state, the limit column 28 presses on the stop block 29. The height of the stop block 29 can be adjusted in advance. When the pressure roller 21 is pressed down, it is stopped by the limit column 28 and the stop block 29. There is no pressure between the positioning wheel 214 and the conical surface 241 on the pressure roller positioning member 24, which can effectively extend the service life of the equipment.

[0023] The specific structure of the spiral positioning shaft 25 is shown in FIG. Figure 4 As shown, the main part is a screw with a spiral groove on the circumferential surface, and the screw part extends into the area corresponding to the annular groove 211 on each pressure roller 21 along the central axis 213. The outer end of the spiral positioning shaft 25 is provided with an L-shaped connecting part 251 with the main part, and the connecting part 251 is fixedly connected to the machine body 1. When the single coil is pre-sleeved, the coil ring rotates around the connecting part 251 and then sleeves on the main part, matching with the spiral groove on the screw.

[0024] In a preferred embodiment, referring to Figure 4 As shown, the pressing bottom plate 31 and the pressing plate 33 are provided with comb teeth 34 matching the spacing of the annular wire groove 211 at one end facing the central axis 213, and the comb teeth 34 extend into the area between the pressing rollers 21. The provision of the comb teeth 34 can enable the pressing bottom plate 31 and the pressing plate 33 to press to the end of the book, which can further improve the stability of the pressing.

[0025] In a preferred embodiment, referring to Figure 1 and Figure 6As shown, the shearing and bending mechanism 4 also includes a transverse plate 42 parallel to the pressure roller 21, a shearing cylinder 43 facing the central axis 213 is provided on the machine body 1, and the transverse plate 42 is driven by the shearing cylinder 43 to reciprocate toward the central axis 213, and two mounting blocks 44 are provided on the transverse plate 42, and the shearing and bending knife 41 is connected to the mounting blocks 44, and the positions of the mounting blocks 44 and the shearing and bending knife 41 along the length direction of the transverse plate 42 are adjustable. This structure can adapt the distance between the shearing and bending knives 41 to books of different sizes and specifications. When the shearing cylinder 43 drives the transverse plate 42 to reciprocate, the shearing and bending knife 41 is driven by the transverse plate 42 to complete the shearing and bending action.

[0026] To sum up, the utility model is a plastic single-coil binding device, which can effectively solve the problems of insufficient binding stability, high defective rate, low processing efficiency and so on of existing binding equipment. It has high utilization value and use significance and can be widely promoted and applied.

[0027] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plastic single coil binding device, comprising a body (1), characterized in that: The machine body (1) is provided with a ring pressing and ring passing mechanism (2), a book pressing mechanism (3) and a shearing and bending mechanism (4); the ring pressing and ring passing mechanism (2) comprises three press rollers (21) which are arranged in a herringbone shape and are parallel to each other and flush at both ends; the surface of each press roller (21) is provided with a plurality of annular grooves (211) which are equidistantly distributed along the length direction; each press roller (21) is provided with a bearing support rod (212) near both ends; the bearing support rod (212) on one of the press rollers (21) is connected to the machine body (1), and the bearing support rods (212) on the other two press rollers (21) are connected to one of the two press rollers (21). The pressing roller lifting plate (22) is connected to the pressing roller (21), the pressing roller lifting plate (22) is parallel to the pressing roller (21), a pressing ring cylinder (23) is provided on the machine body (1) and is vertically facing the pressing roller (21), the pressing roller lifting plate (22) is connected to the movable end of the pressing ring cylinder (23), when the pressing ring cylinder (23) is in motion, the pressing roller lifting plate (22) drives the two pressing rollers (21) to approach or lift up to another pressing roller (21), when the three pressing rollers (21) are close to each other, the line connecting the centers of the tangent circles of the circumferential surfaces of the pressing rollers (21) is defined as the central axis (21) 3), a roller positioning member (24) is provided at one end of the central axis (213), and a spiral positioning shaft (25) is provided at the other end, the roller positioning member (24) has a conical surface (241) facing inward, each roller (21) is provided with a positioning wheel (214) and a synchronous pulley (215) at one end close to the roller positioning member (24), when each roller (21) approaches each other, the positioning wheel (214) abuts against the conical surface (241), a servo motor (26) is provided on the machine body (1), and each roller (21) is driven by the synchronous pulley ( 215) can be driven by the servo motor (26) to rotate synchronously in the same direction; the pressing mechanism (3) includes a pressing base plate (31) and a pressing cylinder (32) perpendicular to the pressing base plate (31), the movable end of the pressing cylinder (32) is connected to a pressing plate (33) parallel to the pressing base plate (31), and the pressing base plate (31) is parallel to the central axis (213); the shearing and bending mechanism (4) includes a pair of shearing and bending knives (41), and the working position of the blade part of the shearing and bending knife (41) is located in the area between each of the pressing rollers (21).

2. A plastic single coil binding device as claimed in claim 1, characterized in that: The position of the pressure roller positioning member (24) along the central axis (213) is adjustable.

3. A plastic single coil binding device as claimed in claim 2, characterized in that: The bearing support rod (212) is connected to the machine body (1) and the pressure roller lifting plate (22) via a support (27), and the connection angle between the bearing support rod (212) and the support (27) is adjustable.

4. A plastic single coil binding device as claimed in claim 1, characterized in that: A limit column (28) is provided at one end of the pressure roller lifting plate (22) along the moving direction of the pressure ring cylinder (23), and a stop block (29) is provided on the machine body (1). When the pressure rollers (21) are in a close state, the limit column (28) presses against the stop block (29).

5. A plastic single coil binding device as claimed in claim 1, characterized in that: A spiral groove is provided on the circumferential surface of the main body of the spiral positioning shaft (25), and extends into the corresponding area of ​​the annular wire groove (211) along the central axis (213). An L-shaped connecting portion (251) is provided at the outer end of the spiral positioning shaft (25) with the main body, and the connecting portion (251) is fixedly connected to the machine body (1).

6. A plastic single coil binding device as claimed in claim 1, characterized in that: The pressing bottom plate (31) and the pressing plate (33) are provided with comb teeth (34) at one end facing the central axis (213) that match the spacing of the annular wire groove (211), and the comb teeth (34) extend into the area between the pressing rollers (21).

7. A plastic single coil binding device as claimed in claim 1, characterized in that: The shearing and bending mechanism (4) comprises a transverse plate (42) parallel to the pressure roller (21); a shearing cylinder (43) facing the central axis (213) is provided on the machine body (1); the transverse plate (42) is driven by the shearing cylinder (43) to reciprocate toward the central axis (213); two mounting blocks (44) are provided on the transverse plate (42); the shearing and bending knife (41) is connected to the mounting blocks (44); and the positions of the mounting blocks (44) and the shearing and bending knife (41) along the length direction of the transverse plate (42) are adjustable.

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