Plastic single coil forming device

Abstract

The utility model provides a plastic single coil forming device which comprises a rack, a wire roller and a heating mechanism are arranged on the right side of the rack, a coil forming mechanism is arranged in the left-right direction, and a coil discharging mechanism is arranged on the left side of the rack. The heating mechanism comprises a heating inner core capable of rotating in the axial direction, a spiral groove is formed in the surface of the heating inner core, a shell is arranged outside the heating inner core, and a wire inlet pipe and a wire outlet pipe are arranged on the shell; the coil forming mechanism comprises a core shaft and three coil pressing rollers, the core shaft can rotate in the axial direction, the surface of the core shaft is provided with a spiral wire guide groove, the coil pressing rollers are distributed around the outer edge of the core shaft, when the core shaft rotates, the coil pressing rollers synchronously and reversely rotate, and a cooling fan is arranged towards the core shaft; the coil discharging mechanism is provided with a rotary conveying belt, and an inductor and a shearing device are arranged above the conveying belt. According to the device, the coil forming mechanism of a three-press-roller structure is adopted, press ring forming is more stable, the yield can be effectively improved, press roller lifting and pressing operation is convenient and fast, and heat dissipation of a draught fan is beneficial for maintaining the working environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing and manufacturing equipment for this type of products, and specifically relates to a plastic single coil forming device. Background Art

[0002] In products such as notebooks and calendars, the use of single plastic coils for binding is a common method, which has the characteristics of low cost and the ability to fully open the pages. The processing and production of single plastic coils generally involves heating a single plastic wire, spirally winding it around a rotating mandrel, forming it through the cooperation of the mandrel and the pressure roller, and cooling it by spraying cold water to shape the coil. Most existing single coil forming equipment has a single pressure roller structure, and the coil forming stability is low, which easily produces defective products and affects the product qualification rate. In addition, the traditional water cooling method is costly, has a greater impact on the processing site environment, and is not conducive to the collection of coils after processing. Utility Model Content

[0003] In view of the defects of the prior art, the utility model provides a plastic single coil forming device with a three-roller structure. To achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0004] A plastic single coil forming device comprises a frame, a wire roller and a heating mechanism are arranged on the right side of the frame, a coil forming mechanism is arranged on the frame along the left and right directions, and a coil discharging mechanism is arranged on the left side of the frame; the heating mechanism comprises a heating inner core which can rotate along the axial direction, a spiral groove is arranged on the surface of the heating inner core along the circumferential direction, a shell is arranged outside the heating inner core, an inlet pipe and an outlet pipe are arranged on the shell, and the inlet of the inlet pipe faces the wire roller; the coil forming mechanism comprises a mandrel arranged horizontally along the left and right directions, the mandrel can rotate along the axial direction, a spiral wire groove is arranged on the surface of the mandrel along the circumferential direction, the outlet of the outlet pipe faces the right end of the mandrel, three coil pressing rollers are arranged parallel to the mandrel, the coil pressing rollers are distributed around the outer edge of the mandrel in a herringbone shape, and when the mandrel rotates, each coil pressing roller rotates synchronously in the opposite direction, and the coil forming mechanism is provided with a heat dissipation fan with an air outlet facing the mandrel near the left end of the mandrel; the coil discharging mechanism comprises a conveyor belt arranged at the left end of the mandrel in the horizontal direction, the running direction of the conveyor belt is perpendicular to the mandrel, and an inductor and a shear are arranged above the conveyor belt in the left extension direction of the mandrel.

[0005] Preferably, a first motor and a second motor are provided on the frame, the heating core is driven to rotate by the first motor, and the core shaft is driven to rotate by the second motor.

[0006] Preferably, the frame is respectively provided with a left support plate and a right support plate at both ends of the core shaft, the right end of the core shaft is installed on the right support plate, and the left support plate is provided with a coil discharge port at a corresponding position of the left end of the core shaft; three pressure roller mounting shafts are horizontally provided between the left support plate and the right support plate, the pressure roller mounting shafts are parallel to the core shaft and are distributed around the core shaft in a herringbone shape, the pressure roller mounting shafts can rotate along the axial direction, and each pressure roller mounting shaft is respectively provided with a pair of swing arms, and each coil pressure roller is respectively installed on the outer end of the swing arm on the corresponding pressure roller mounting shaft, and when the pressure roller mounting shaft rotates, the coil pressure roller is driven to abut against or separate from the core shaft through the swing arm.

[0007] Furthermore, a central gear is provided on the right side of the right support plate, and three external gears are provided in mesh with the outer edge of the central gear. Each external gear is fixedly connected to the right end of each pressure roller mounting shaft, and one of the external gears is provided with a pressure roller adjustment handle, and the central gear is provided with a fastening screw.

[0008] Furthermore, the core shaft is provided with a driving gear near the left side of the right support plate, and the coil pressing roller is provided with a passive gear near the left side of the right support plate. When the coil pressing roller abuts against the core shaft, the passive gear meshes with the driving gear.

[0009] Furthermore, a transition gear is provided at the right end of each pressure roller installation shaft on the left side of the right support plate, and the passive gears are respectively engaged with the corresponding transition gears. When the pressure roller installation shaft drives the coil pressure roller to swing up and down, the passive gear rotates along the outer edge of the transition gear.

[0010] Preferably, a conveyor belt bracket is provided on the left side of the frame, a stepper motor is provided on the conveyor belt bracket, and the conveyor belt is driven by the stepper motor to rotate around the conveyor belt bracket.

[0011] Furthermore, a plurality of coil separation plates parallel to each other are equidistantly arranged on the outer surface of the conveyor belt along the running direction.

[0012] Compared with the prior art, the beneficial effects of the utility model are: compact structure, reasonable design, the coil forming mechanism adopts a three-pressure roller structure, the pressure ring forming is more stable, and the yield rate of coil processing is effectively improved; the lifting and pressing operations of the three pressure rollers are convenient, which is convenient for the core shaft replacement operation and can effectively improve the equipment maintenance efficiency; the coil forming part adopts a fan for heat dissipation, which can quickly cool down and shape the coil, which is more conducive to maintaining the working environment compared with traditional water cooling; the discharging mechanism transmits the processed coil segments, which is convenient for the collection of finished products, and the front and rear directions can be selected for transmission according to needs, which has better site adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 : The left main view three-dimensional structure schematic diagram of the utility model.

[0014] Figure 2 : Figure 1 Schematic diagram of the local structure at point A in the middle.

[0015] Figure 3 : A schematic diagram of the right main view of the three-dimensional structure of the utility model.

[0016] Figure 4 : The left-side structural schematic diagram of the utility model.

[0017] Figure 5 : The right side structural schematic diagram of the utility model.

[0018] Figure 6 : A front structural schematic diagram of the utility model.

[0019] Figure 7 : A right side structural schematic diagram of the section at B in the utility model.

[0020] Figure 8 : Left view structural diagram of the section at C in the utility model

[0021] In each figure: 1. frame; 11. first motor; 12. second motor; 13. left support plate; 14. right support plate; 15. coil outlet; 16. center gear; 17. outer gear; 18. pressure roller control handle; 19. tightening screw; 2. wire roller; 3. heating mechanism; 31. heating inner core; 32. shell; 33. inlet pipe; 34. outlet pipe; 4. coil forming mechanism; 41. mandrel; 42. wire trough; 43. coil pressure roller; 44. cooling fan; 45. pressure roller mounting shaft; 46. swing arm; 47. driving gear; 48. driven gear; 49. transition gear; 5. coil discharge mechanism; 51. conveyor belt; 52. sensor; 53. cutter; 54. conveyor belt bracket; 55. stepper motor; 56. coil separator. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides a plastic single coil forming device, referring to Figures 1 to 8As shown, it includes a frame 1, a wire roller 2 and a heating mechanism 3 are arranged on the right side of the frame 1, a coil forming mechanism 4 is arranged on the frame 1 along the left and right directions, and a coil discharging mechanism 5 is arranged on the left side of the frame 1. The wire roller 2 is used for feeding, and the plastic wire raw material to be processed is wound on the wire roller 2, and the wire roller 2 is installed on a rotating shaft and can rotate around the axial direction. The heating mechanism 3 is used to heat and soften the plastic wire. The heating mechanism 3 includes a heating core 31, which is a cylindrical structure. Usually, its axis is arranged horizontally along the left and right directions. The heating core 31 is driven by a first motor 11 arranged on the frame 1 and can rotate along the axial direction. In a specific application, the heating core 31 is heated by an internal electric heating element, and the surface of the heating core 31 is provided with a spiral groove along the circumferential direction. The outside of the heating core 31 is provided with a shell 32, and the shell 32 is provided with an inlet pipe 33 and an outlet pipe 34, and the inlet of the inlet pipe 33 faces the wire roller 2. The coil forming mechanism 4 includes a mandrel 41 horizontally arranged in the left-right direction. The mandrel 41 can be driven by a second motor 12 arranged on the frame 1 to rotate in the axial direction. A spiral wire groove 42 is arranged on the surface of the mandrel 41 in the circumferential direction. The outlet of the outlet pipe 34 faces the right end of the mandrel 41. Three coil pressing rollers 43 are arranged parallel to the mandrel 41. The coil pressing rollers 43 are distributed around the outer edge of the mandrel 41 in a triangular shape. When the mandrel 41 rotates, each coil pressing roller 43 rotates synchronously in the opposite direction. A heat dissipation fan 44 with an air outlet facing the mandrel 41 is arranged on the coil forming mechanism 41. The coil discharging mechanism 5 includes a conveyor belt 51 arranged at the right end of the mandrel 41 in the horizontal direction. The running direction of the conveyor belt 51 is perpendicular to the mandrel 41. Above the conveyor belt 51, an inductor 52 and a shear 53 are arranged in the direction of the left extension of the mandrel 41. The working process of the device is as follows: the plastic wire raw material to be processed is wound on the wire roller 2, and the plastic wire is passed through the heating mechanism 3 from the wire inlet pipe 33, and the inner core 31 is heated and heated. The plastic wire is conveyed forward along the spiral groove on the heating inner core 31 and passed through the wire outlet pipe 34. The plastic wire is heated and softened while being conveyed by the heating mechanism 3; after passing through the wire outlet pipe 34, the wire is connected to the coil forming mechanism 4 and enters from the right end of the wire groove 42 on the core shaft 41. The core shaft 41 rotates, and the three coil pressing rollers 43 press against the core shaft 41 and rotate synchronously in the opposite direction, pressing the plastic wire into the wire groove 42. The plastic wire is wound on the surface of the core shaft 41, and as the core shaft rotates, the three coil pressing rollers 43 press against the core shaft 41 and rotate synchronously in the opposite direction, pressing the plastic wire into the wire groove 42. The plastic wire is wound on the surface of the core shaft 41. 41 rotates and spirals along the wire groove 42, and is formed into a spiral single coil. The heat dissipation fan 44 blows air toward the core shaft 41 to dissipate heat, so that the plastic single coil is quickly cooled and shaped. The installation position of the heat dissipation fan 44 is close to the left end of the core shaft 41. The formed plastic single coil is transmitted from the left end of the core shaft 41. When the front end of the coil runs to the sensor 52, the sensor 52 transmits the induction signal to the shear 53, and the shear 53 cuts the coil. The coil falls on the conveyor belt 51, and the conveyor belt 51 sends the processed plastic single coil. The sensor 52 generally adopts grating induction, and the shear 53 is driven by a cylinder, both of which are commonly used equipment in this field.At the beginning of the device operation, the wire can be manually threaded to allow the wire to enter the heating mechanism 3 and the coil forming mechanism 4. After the system starts working, each mechanism operates continuously without manual intervention. A controller can be provided on the frame 1 to receive the sensor 52 signal and uniformly control the movement of each component. The device has a compact structure and a reasonable design. The coil forming mechanism 4 adopts a three-roller structure, which makes the coil forming more stable and effectively improves the yield rate of coil processing; the coil forming part adopts a fan for heat dissipation, which can quickly cool down the coil and shape it. Compared with traditional water cooling, it is more conducive to maintaining the working environment.

[0024] The synchronous reverse rotation between the mandrel 41 and the pressure roller 43 can be achieved by means of synchronous belt or gear transmission. At the same time, in order to adapt to the processing of coils of different specifications, the mandrel 41 sometimes needs to be replaced, and the coil pressure roller 43 needs to be lifted. In a preferred embodiment of the utility model, a specific installation and transmission structure of the coil pressure roller 43 is given. Figure 1 and Figure 2As shown, the frame 1 is provided with a left support plate 13 and a right support plate 14 at both ends of the core shaft 41, the right end of the core shaft 41 is installed on the right support plate 14, the core shaft 41 and the right support plate 14 are connected by a bearing, the core shaft 41 is driven by the second motor 12 and can rotate on the right support plate 14, and the left support plate 13 is provided with a coil outlet 15 at a corresponding position of the left end of the core shaft 41; three pressure roller installation shafts 45 are provided between the left support plate 13 and the right support plate 14 in the horizontal direction, the pressure roller installation shafts 45 are parallel to the core shaft 41 and are distributed around the core shaft 41 in a herringbone shape, and the two ends of the pressure roller installation shaft 45 are respectively installed by bearings Connected to the left support plate 13 and the right support plate 14, each roller mounting shaft 45 is fixed in axial position and can rotate along the axial direction. Each roller mounting shaft 45 is provided with a swing arm 46. Specifically, there are two swing arms 46 on each roller mounting shaft 45. Each coil roller 43 is respectively installed on the outer end of the swing arm 46 on the corresponding roller mounting shaft 45, that is, each roller mounting shaft 45 is correspondingly installed with a coil roller 43. The swing arm 46 is fixedly connected to the roller mounting shaft 45 and the coil roller 43. When the roller mounting shaft 45 rotates, the coil roller 43 is driven to abut against or separate from the core shaft 41 through the swing arm 46. A central gear 16 is provided on the right side of the right support plate 14, and three external gears 17 are provided in mesh with the outer edge of the central gear 16. Each external gear 17 is respectively fixedly connected to the right end of the roller mounting shaft 45. One of the external gears 17 is provided with a roller adjustment handle 18, and the central gear 16 is provided with a fastening screw 19. When the coil roller 43 needs to be lifted or pressed down, the tightening screw 19 is turned to loosen the center gear 16 from holding the shaft, and the roller adjustment handle 18 is pulled to rotate one outer gear 17, and the center gear 16 drives the other two outer gears 17 to rotate synchronously. When the three outer gears 17 rotate, the roller installation shaft 45 and the swing arm 46 drive the coil roller 43 to press against the mandrel 41 or separate from the mandrel 41. When the adjustment is completed, the tightening screw 19 is turned to hold the center gear 16, and the center gear 16 and the outer gear 17 are fixed. The mandrel 41 is provided with a driving gear 47 on the left side of the right support plate 14, and the coil roller 43 is provided with a driven gear 48 on the left side of the right support plate 14. The driving gear 47 is tightly held on the mandrel 41, and the driven gear 48 is tightly held on the coil roller 43. When the coil roller 43 is against the mandrel 41, the driven gear 48 is meshed with the driving gear 47. When the core shaft 41 rotates under the drive of the second motor 12, the three coil pressing rollers 43 are driven to rotate synchronously in opposite directions through the cooperation between the driving gear 47 and the driven gear 48. In order to make the coil pressing rollers 43 more stable when they are lifted and pressed down, in a specific structure, the right end of the pressing roller installation shaft 45 is provided with a transition gear 49 on the left side of the right support plate 14, and the driven gear 48 is respectively engaged with the corresponding transition gear 49. When the pressing roller installation shaft 45 drives the coil pressing roller 43 to swing up and down, the driven gear 48 rotates along the outer edge of the transition gear 49.The installation and transmission structure of the coil pressing roller 43 provided in this embodiment can make the synchronous rotation of the three coil pressing rollers 43 and the core shaft 41 have better stability, and the lifting and pressing operations are more convenient, which is convenient for the core shaft replacement operation and can effectively improve the equipment maintenance efficiency.

[0025] The function of the coil discharging mechanism 5 is to transfer the processed plastic single coil. In a preferred embodiment, Figure 1 As shown, a conveyor support 54 is provided on the left side of the frame 1, and a stepper motor 55 is provided on the conveyor support 54. The conveyor 51 is driven by the stepper motor 55 to rotate around the conveyor support 54. A plurality of coil separators 56 parallel to each other can be provided at equal intervals on the outer surface of the conveyor 51 along the running direction. The conveyor 51 can output the processed single coil in the front and rear directions according to the needs, and has better site adaptability. The coil separators 56 keep the coils in a parallel state and output them one by one, which is convenient for the collection of finished products and more convenient for cooperation with other equipment on the production line.

[0026] To sum up, the utility model is a plastic single coil forming device, which can effectively solve the problems of low stability of the pressing ring forming of the existing processing equipment, high product defective rate, and difficult to maintain the working environment. 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 forming device, comprising a frame (1), characterized in that: A wire roller (2) and a heating mechanism (3) are provided on the right side of the frame (1); a coil forming mechanism (4) is provided on the frame (1) in the left-right direction; and a coil discharging mechanism (5) is provided on the left side of the frame (1); the heating mechanism (3) comprises a heating inner core (31) rotatable in the axial direction, the surface of the heating inner core (31) is provided with a spiral groove in the circumferential direction, the outer part of the heating inner core (31) is provided with a shell (32), the shell (32) is provided with an inlet pipe (33) and an outlet pipe (34), the inlet of the inlet pipe (33) faces the wire roller (2); the coil forming mechanism (4) comprises a mandrel (41) horizontally arranged in the left-right direction, the mandrel (41) is rotatable in the axial direction, the surface of the mandrel (41) is provided with a spiral groove in the circumferential direction The invention relates to a wire trough (42), wherein the outlet of the wire outlet pipe (34) faces the right end of the core shaft (41), and three coil pressing rollers (43) are arranged parallel to the core shaft (41). The coil pressing rollers (43) are arranged in a herringbone shape around the outer edge of the core shaft (41). When the core shaft (41) rotates, each of the coil pressing rollers (43) rotates synchronously in the opposite direction. The coil forming mechanism (4) is provided with a heat dissipation fan (44) with an air outlet facing the core shaft (41); the coil discharging mechanism (5) comprises a conveyor belt (51) arranged at the left end of the core shaft (41) in a horizontal direction, and the running direction of the conveyor belt (51) is perpendicular to the core shaft (41). A sensor (52) and a shear (53) are arranged above the conveyor belt (51) in the direction of the core shaft (41) extending to the left.

2. A plastic single coil forming device as claimed in claim 1, characterized in that: The frame (1) is provided with a first motor (11) and a second motor (12); the heating inner core (31) is driven to rotate by the first motor (11), and the core shaft (41) is driven to rotate by the second motor (12).

3. A plastic single coil forming device as claimed in claim 1, characterized in that: The frame (1) is provided with a left support plate (13) and a right support plate (14) at both ends of the core shaft (41), respectively; the right end of the core shaft (41) is mounted on the right support plate (14); the left support plate (13) is provided with a coil outlet (15) at a position corresponding to the left end of the core shaft (41); three pressure roller installation shafts (45) are provided between the left support plate (13) and the right support plate (14) in a horizontal direction; the pressure roller installation shafts (45) are connected to the core shaft (41) and the coil outlet (15) is provided at a position corresponding to the left end of the core shaft (41); The shaft (41) is parallel and distributed in a herringbone shape around the core shaft (41); the pressure roller installation shaft (45) can rotate along the axial direction; each pressure roller installation shaft (45) is respectively provided with a swing arm (46); each coil pressure roller (43) is respectively installed on the outer end of the swing arm (46) on the corresponding pressure roller installation shaft (); when the pressure roller installation shaft (45) rotates, the coil pressure roller (43) is driven by the swing arm (46) to abut against or separate from the core shaft (41).

4. A plastic single coil forming device as claimed in claim 3, characterized in that: A central gear (16) is provided on the right side of the right support plate (14), and three external gears (17) are provided in mesh with the outer edge of the central gear (16), and each of the external gears (17) is fixedly connected to the right end of the pressure roller installation shaft (45) respectively, and a pressure roller adjustment handle (18) is provided on one of the external gears (17), and a fastening screw (19) is provided on the central gear (16).

5. A plastic single coil forming device as claimed in claim 4, characterized in that: The core shaft (41) is provided with a driving gear (47) near the left side of the right support plate (14), and the coil pressing roller (43) is provided with a driven gear (48) near the left side of the right support plate (14). When the coil pressing roller (43) abuts against the core shaft (41), the driven gear (48) meshes with the driving gear (47).

6. A plastic single coil forming device as claimed in claim 5, characterized in that: The right end of each of the pressure roller installation shafts (45) is provided with a transition gear (49) on the left side of the right support plate (14), and the driven gear (48) is meshed with the corresponding transition gear (49). When the pressure roller installation shaft (45) drives the coil pressure roller (43) to swing up and down, the driven gear (48) rotates along the outer edge of the transition gear (49).

7. A plastic single coil forming device as claimed in claim 1, characterized in that: A conveyor belt bracket (54) is provided on the left side of the frame (1), and a stepper motor (55) is provided on the conveyor belt bracket (54). The conveyor belt (51) is driven by the stepper motor (55) to rotate around the conveyor belt bracket (54).

8. A plastic single coil forming device as claimed in claim 7, characterized in that: The outer surface of the conveyor belt (51) is provided with a plurality of coil separation plates (56) which are parallel to each other and are equidistant along the running direction.

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