Plastic single coil forming machine

Abstract

The utility model discloses a plastic unicoil forming machine which comprises a rack, a feeding spool, an electromagnetic clutch, a material storage assembly, a heating assembly, a forming assembly, a transmission assembly and a driving motor, the electromagnetic clutch is coaxially arranged on one side of the feeding spool, the heating assembly is arranged on the rack and located on the rear side of the material storage assembly, and the transmission assembly is arranged on the rack. The forming assembly is arranged on the rack and located on the upper side of the heating assembly, and the driving motor is arranged on the rear side of the rack and is in synchronous transmission connection with the heating assembly and the forming assembly through the transmission assembly. According to the utility model, the heating assembly and the forming assembly are simultaneously driven by one driving motor, so that the cost is reduced, and the problem of wire storage or wire breakage is avoided or reduced; when the diameter of the coil needs to be adjusted, only the mandrel needs to be replaced, so that the use cost is reduced; the material storage assembly enables the wire rod not to be easily pulled apart when the machine runs, and timely material supplement is also facilitated after the wire rod lacks; and the wire rod is uniformly heated, so that the quality of the coil is not influenced by non-uniform temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of coil forming machines, in particular to a plastic single coil forming machine. Background Art

[0002] Plastic coils are long spiral coils made of plastic products, generally used for binding products such as loose-leaf books, desk calendars, photo albums, etc. According to the different coil forms, they can be divided into single coils and double coils, among which single coils are processed by single coil forming machines. When the single coil forming machine is working, the wire is first heated and softened by the heating mechanism, and the forming roller is driven to rotate by the motor, driving the plastic wire on the roller shaft to be wound around the forming roller, and finally forming a spiral single coil. However, the existing single coil forming machines have the following problems:

[0003] 1. The existing single coil forming machine uses two motors to drive the heating roller and the forming die respectively, but the two motors are prone to asynchronous operation, resulting in wire accumulation or wire breakage.

[0004] Second, when replacing the existing molding mold, not only the core shaft but also the molding sleeve needs to be replaced, but the processing of the molding sleeve is complicated and costly;

[0005] 3. The existing single coil forming machine has no material storage area, and the wire is easily torn during the transportation process;

[0006] Fourth, when the existing single-coil forming machine is shut down and then restarted, the coil pitch and inner diameter will change due to the temperature drop and coil cooling, which affects the coil forming quality.

[0007] In summary, the existing plastic single coil forming machine needs to be improved. Utility Model Content

[0008] In order to solve the above technical problems, the utility model discloses a plastic single-coil molding machine, comprising a frame, a feeding spool, an electromagnetic clutch, a material storage component, a heating component, a molding component, a transmission component and a driving motor. The feeding spool is rotatably arranged on the front side of the frame, the electromagnetic clutch is coaxially arranged on one side of the feeding spool, the material storage component is arranged on the frame, the heating component is arranged on the frame and located at the rear side of the material storage component, the molding component is arranged on the frame and located on the upper side of the heating component, and the driving motor is arranged on the rear side of the frame and is synchronously transmitted and connected with the heating component and the molding component through the transmission component.

[0009] Furthermore, the material storage assembly includes a lower roller shaft, an upper roller shaft, a connecting belt and a tension spring. The lower roller shaft is rotatably set on the frame, one side of the upper roller shaft is connected to the frame through a linear guide rail, and a first pulley is provided on the front side of the frame. The connecting belt passes around the first pulley at one end and is connected to the upper roller shaft, and the other end is connected to the tension spring, and the other end of the tension spring is connected to the frame.

[0010] Furthermore, the inner side of the connection between the frame and the material storage component is provided with a first proximity switch, a second proximity switch and a third proximity switch from top to bottom, and the first proximity switch, the second proximity switch and the third proximity switch are all connected to the electromagnetic clutch through electrical signals.

[0011] Furthermore, the heating component includes a roller and an electric heating block, one end of the roller is connected to the transmission component, the electric heating block is wrapped around the outside of the roller, and the outer wall of the roller is provided with a plurality of winding grooves.

[0012] Furthermore, a clamping shaft is provided on the front side of the roller, one end of the clamping shaft is rotatably connected to the frame through a swing arm, and a groove matching the clamping shaft is provided on the outer wall of the roller, and the clamping shaft is movably connected to the groove.

[0013] Furthermore, the forming assembly includes a core shaft and three forming rollers arranged around the core shaft, the three forming rollers are distributed around the core shaft in a triangular manner, one end of the core shaft is rotatably connected to the frame, the three forming rollers are connected to the transmission assembly, the surfaces of the three forming rollers are provided with forming grooves adapted to the pitch of a single coil, and the forming grooves are staggered along the axial direction of the forming rollers, the core shaft is a slender shaft with a smooth surface and adapted to the diameter of a single coil, through the rotation of the three forming rollers and the cooperative extrusion between the core shaft, the single coil is wound on the core shaft with the pitch on the three forming rollers.

[0014] Furthermore, a guide plate is provided between the heating component and the molding component, a material guide groove is provided inside the guide plate, two ends of the material guide groove are respectively connected to the winding groove and the core shaft, and an electric heating rod is also provided on one side of the material guide groove inside the guide plate.

[0015] Furthermore, the transmission assembly includes a first pulley group, a gear group, a second pulley group, a transmission shaft and a third pulley group. The gear group is arranged on one side of the frame, the drive motor is connected to the gear group through the first pulley group, one end of the transmission shaft is connected to the gear group through the second pulley group, and the other end of the transmission shaft is connected to the three forming rollers through the third pulley group.

[0016] Furthermore, the molding machine also includes a cooling component, which includes a vortex cooling tube and a blowing pipe. The vortex cooling tube is arranged on a frame, and the blowing pipe is arranged parallel to one side of the molding component. The vortex cooling tube and the blowing pipe are connected through an air pipe, and the outer wall of the blowing pipe is provided with a plurality of air outlet holes facing the molding component.

[0017] Furthermore, a lubrication pump is provided on the rear side of the frame, and the lubrication pump is connected to the winding groove of the roller through an oil pipe.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. One drive motor is used to drive the heating component and the forming component at the same time, and the speeds of the two components are matched, which not only reduces the cost, but also avoids or reduces the problem of wire storage or wire breakage caused by asynchronous action;

[0020] 2. When the coil diameter needs to be adjusted, only the core shaft needs to be replaced, without the need to replace the entire coil, thus reducing the cost of use;

[0021] 3. Through the setting of the material storage component, the wire is not easy to be broken when the machine is running, and it is also convenient to replenish the material in time when the wire is short;

[0022] 4. The wire is heated by the heating component to keep it in a softened state at all times, and the quality of the coil will not be affected by uneven temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a side structural schematic diagram of the utility model;

[0026] Figure 3 This is an axial structural cross-sectional view of the heating component in the utility model;

[0027] Figure 4 It is a partial structural sectional view of the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of the cooling component in the utility model.

[0029] Reference numerals:

[0030] 10- rack;

[0031] 20-feeding spool;

[0032] 30-Electromagnetic clutch;

[0033] 40-stocking assembly, 41-lower roller, 42-upper roller, 43-connecting belt, 44-tension spring, 45-linear guide rail, 46-first pulley, 47-first proximity switch, 48-second proximity switch, 49-third proximity switch;

[0034] 50-heating assembly, 51-roller, 52-electric heating block, 53-winding groove, 54-pressing shaft, 55-swing arm, 56-groove;

[0035] 60-forming component, 61-mandrel, 62-forming roller, 621-forming groove, 63-swing block;

[0036] 70-transmission assembly, 71-first pulley set, 72-gear set, 73-second pulley set, 74-transmission shaft, 75-third pulley set;

[0037] 80-driving motor;

[0038] 90-guide plate, 91-material guide trough, 92-electric heating rod;

[0039] 100-cooling assembly, 101-vortex refrigeration tube, 102-air blowing tube, 103-air pipe, 104-air outlet;

[0040] 110-lubrication pump;

[0041] 120-Oil pipe. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0045] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] like Figure 1 As shown, the plastic single coil molding machine in this embodiment includes a frame 10, a feeding spool 20, an electromagnetic clutch 30, a material storage assembly 40, a heating assembly 50, a molding assembly 60, a transmission assembly 70 and a driving motor 80; the feeding spool 20 is rotatably arranged at the front side of the frame 10, and a plastic wire for molding is wound on the feeding spool 20, and the wire is pulled from the feeding spool 20 to the material storage assembly 40; the electromagnetic clutch 30 is coaxially arranged on one side of the feeding spool 20, and is used to control the start and stop of the feeding spool 20; the material storage assembly 40 0 is arranged on the frame 10 for caching the wire; the heating component 50 is arranged on the frame 10 and is located at the rear side of the material storage component 40, for heating and softening the wire to facilitate subsequent molding; the molding component 60 is arranged on the frame 10 and is located on the upper side of the heating component 50, for processing the wire into a single coil; the driving motor 80 is arranged on the rear side of the frame 10 and is synchronously connected with the heating component 50 and the molding component 60 through the transmission component 70, and the driving motor 80 can drive the heating component 50 and the molding component 60 to operate synchronously.

[0047] The material storage assembly 40 includes a lower roller shaft 41, an upper roller shaft 42, a connecting belt 43 and a tension spring 44. The lower roller shaft 41 is rotatably set on the frame 10. One side of the upper roller shaft 42 is connected to the frame 10 through a linear guide rail 45. A first pulley 46 is provided on the front side of the frame 10. One end of the connecting belt 43 passes around the first pulley 46 and is connected to the upper roller shaft 42, and the other end is connected to the tension spring 44. The other end of the tension spring 44 is connected to the frame 10.

[0048] like Figure 2 As shown, the inner side of the connection between the frame 10 and the material storage assembly 40 is provided with a first proximity switch 47, a second proximity switch 48 and a third proximity switch 49 from top to bottom, and the first proximity switch 47, the second proximity switch 48 and the third proximity switch 49 are all connected to the electromagnetic clutch 30 through electrical signals.

[0049] After being pulled out from the feeding bobbin 20 , the wire is continuously wound on the wire clamps of the upper roller 42 and the lower roller 41 . The upper roller 42 is movably arranged above the lower roller 41 by the tension of the tension spring 44 . When the feeding spool 20 and the material storage assembly 40 are not short of wire or broken, the upper roller 42 floats and runs between the second proximity switch 48 and the third proximity switch 49 under the action of traction, and the electromagnetic clutch 30 is in a disconnected state without braking action; when the feeding spool 20 is short of wire or broken, the tension on one side of the feeding spool 20 disappears, and under the tension of the tension spring 44, the upper roller 42 moves upward and approaches the first proximity switch 47, and the first proximity switch 47 sends a signal to the electromagnetic clutch 30, and the electromagnetic clutch 30 performs a braking action to stop the feeding spool 20 from feeding wire, and the drive motor 80 also stops running synchronously; when the tension on one side of the feeding spool 20 is too large, the upper roller 42 moves downward and approaches the third proximity switch 49. In order to prevent the upper roller 42 from colliding with the lower roller 41, the third proximity switch 49 sends a signal to the electromagnetic clutch 30, and the electromagnetic clutch 30 performs a braking action to stop the feeding spool 20 from feeding wire, and the drive motor 80 also stops running synchronously.

[0050] The material storage component 40 can buffer a certain amount of wire, avoiding the problem of continuous production when the machine is out of wire; after replacing the new feeding spool 20, the starting end of the new wire is connected to the end of the previous batch of wire, so as to realize continuous feeding.

[0051] like Figure 3 As shown, the heating assembly 50 includes a roller 51 and an electric heating block 52 . One end of the roller 51 is connected to the transmission assembly 70 . The electric heating block 52 is wrapped around the outside of the roller 51 . A plurality of winding grooves 53 are provided on the outer wall of the roller 51 .

[0052] A clamping shaft 54 ​​is provided at the front side of the roller 51 , one end of which is rotatably connected to the frame 10 via a swing arm 55 , and a groove 56 matching the clamping shaft 54 ​​is provided on the outer wall of the roller 51 , and the clamping shaft 54 ​​is movably connected to the groove 56 .

[0053] After the wire comes out of the material storage assembly 40, it enters the roller 51 and is continuously wound in the winding groove 53 on its outer wall. When feeding for the first time, it is necessary to manually wind the wire on the roller 51. During the winding process, the clamping shaft 54 ​​is used to press the winding groove 53 of the roller 51 to prevent the wire from being recovered. After normal production, the clamping shaft 54 ​​can be separated from the groove 56.

[0054] like Figure 4 As shown, the forming assembly 60 includes a core shaft 61 and three forming rollers 62 arranged around the core shaft 61. The three forming rollers 62 are distributed around the core shaft 61 in a triangular manner. One end of the core shaft 61 is rotatably connected to the frame 10, and the three forming rollers 62 are connected to the transmission assembly 70.

[0055] like Figure 5 As shown, the surfaces of the three forming rollers 62 are provided with forming grooves 621 adapted to the pitch of a single coil, and the forming grooves 621 are staggered along the axial direction of the forming rollers 62. The core shaft 61 is a slender shaft with a smooth surface and adapted to the diameter of a single coil. Through the rotation of the three forming rollers 62 and the cooperative extrusion between the core shaft 61, the single coil is wound on the core shaft 61 with the pitch on the three forming rollers 62.

[0056] A guide plate 90 is provided between the heating component 50 and the molding component 60. A material guide groove 91 is provided inside the guide plate 90. The two ends of the material guide groove 91 are respectively connected to the winding groove 53 and the core shaft 61. An electric heating rod 92 is also provided inside the guide plate 90 on one side of the material guide groove 91.

[0057] After the wire comes out of the heating assembly 50, it enters the position between the mandrel 61 and the forming roller 62 in the forming assembly 60 through the guide groove 91. As the forming roller 62 rotates, the wire is wrapped around the outside of the mandrel 61 in a spiral manner. The two ends of the three forming rollers 62 are movably connected to the frame 10 through the swing block 63. When adjusting the diameter of the coil with the same pitch, only the mandrel 61 needs to be replaced, and there is no need to replace the entire coil. The three forming rollers 62 will automatically adjust the distance between them and the mandrel 61 according to the thickness of the wire.

[0058] By setting the heating assembly 50 and the electric heating rod 92, the wire can be heated without gaps, so that the wire is always in a softened state, and the pitch or diameter of the coil will not change due to the temperature change of the wire, thereby ensuring the molding quality of the coil.

[0059] like Figure 1-2 As shown, the transmission assembly 70 includes a first pulley group 71, a gear group 72, a second pulley group 73, a transmission shaft 74 and a third pulley group 75. The gear group 72 is arranged on one side of the frame 10. The drive motor 80 is connected to the gear group 72 through the first pulley group 71, one end of the transmission shaft 74 is connected to the gear group 72 through the second pulley group 73, and the other end of the transmission shaft 74 is connected to the three forming rollers 62 through the third pulley group 73.

[0060] A driving motor 80 is used to drive the heating component 50 and the forming component 60 at the same time, and the speeds of the two are matched, which not only reduces the cost, but also avoids or reduces the problem of wire accumulation or wire breakage caused by asynchronous action.

[0061] like Figure 5As shown, the molding machine also includes a cooling component 100, which includes a vortex cooling tube 101 and a blowing tube 102. The vortex cooling tube 101 is arranged on the frame 10, and the blowing tube 102 is arranged parallel to one side of the molding component 60. The vortex cooling tube 101 and the blowing tube 102 are connected through an air pipe 103, and the outer wall of the blowing tube 102 is provided with a plurality of air outlet holes 104 facing the molding component 60.

[0062] The other end of the vortex refrigeration tube 101 is connected to a high-pressure gas source. The vortex refrigeration tube 101 cools the high-pressure gas. The cooled high-pressure gas is evenly blown toward the molding component 60 through the air outlet 104 on the blowing tube 102, so that the formed coil is quickly cooled and shaped, thereby reducing the probability of its deformation.

[0063] like Figure 2 As shown, a lubrication pump 110 is further provided at the rear side of the frame 10 , and the lubrication pump 110 is connected to the winding groove 53 of the roller 51 through an oil pipe 120 .

[0064] Since the wire material has a certain viscosity after being heated, it is easy to cause the surface to be rough and not smooth. The lubrication pump 110 lubricates the wire material in the heated state so that the surface is smooth and glossy after molding, thereby improving product quality.

[0065] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the utility model.

Claims

1. A plastic single coil forming machine, characterized in that: The invention comprises a frame (10), a material feeding spool (20), an electromagnetic clutch (30), a material storage assembly (40), a heating assembly (50), a molding assembly (60), a transmission assembly (70), and a driving motor (80), wherein the material feeding spool (20) is rotatably arranged at the front side of the frame (10), the electromagnetic clutch (30) is coaxially arranged at one side of the material feeding spool (20), the material storage assembly (40) is arranged on the frame (10), the heating assembly (50) is arranged on the frame (10) and is located at the rear side of the material storage assembly (40), the molding assembly (60) is arranged on the frame (10) and is located at the upper side of the heating assembly (50), and the driving motor (80) is arranged at the rear side of the frame (10) and is synchronously transmission-connected to the heating assembly (50) and the molding assembly (60) through the transmission assembly (70).

2. The plastic single coil forming machine according to claim 1, characterized in that: The material storage assembly (40) comprises a lower roller shaft (41), an upper roller shaft (42), a connecting belt (43) and a tension spring (44); the lower roller shaft (41) is rotatably arranged on the frame (10); one side of the upper roller shaft (42) is connected to the frame (10) via a linear guide rail (45); a first pulley (46) is provided on the front side of the frame (10); one end of the connecting belt (43) passes around the first pulley (46) and is connected to the upper roller shaft (42); the other end is connected to the tension spring (44); the other end of the tension spring (44) is connected to the frame (10).

3. The plastic single coil forming machine according to claim 2, characterized in that: A first proximity switch (47), a second proximity switch (48) and a third proximity switch (49) are provided on the inner side of the connection between the frame (10) and the material storage assembly (40) in order from top to bottom, and the first proximity switch (47), the second proximity switch (48) and the third proximity switch (49) are all connected to the electromagnetic clutch (30) via an electrical signal.

4. The plastic single coil forming machine according to claim 1, characterized in that: The heating assembly (50) comprises a roller (51) and an electric heating block (52); one end of the roller (51) is connected to the transmission assembly (70); the electric heating block (52) is wrapped around the outside of the roller (51); and a plurality of winding grooves (53) are provided on the outer wall of the roller (51).

5. The plastic single coil forming machine according to claim 4, characterized in that: A clamping shaft (54) is provided on the front side of the roller (51), one end of the clamping shaft (54) is rotatably connected to the frame (10) via a swing arm (55), an outer wall of the roller (51) is provided with a groove (56) matching the clamping shaft (54), and the clamping shaft (54) is movably connected to the groove (56).

6. The plastic single coil forming machine according to claim 4, characterized in that: The forming assembly (60) comprises a core shaft (61) and three forming rollers (62) arranged around the core shaft (61), the three forming rollers (62) being distributed around the core shaft (61) in a triangular manner, one end of the core shaft (61) being rotatably connected to a frame (10), the three forming rollers (62) being connected to a transmission assembly (70), the surfaces of the three forming rollers (62) being provided with forming grooves (621) adapted to the pitch of a single coil, and the forming grooves (621) being arranged in an axially staggered manner along the forming rollers (62), the core shaft (61) being a slender shaft with a smooth surface adapted to the diameter of a single coil, and the single coil being wound around the core shaft (61) at the pitch of the three forming rollers (62) through the rotation of the three forming rollers (62) and the cooperating extrusion between the core shaft (61).

7. The plastic single coil forming machine according to claim 6, characterized in that: A guide plate (90) is provided between the heating component (50) and the molding component (60), a material guide groove (91) is provided inside the guide plate (90), two ends of the material guide groove (91) are respectively connected to the winding groove (53) and the core shaft (61), and an electric heating rod (92) is also provided inside the guide plate (90) on one side of the material guide groove (91).

8. The plastic single coil forming machine according to claim 6, characterized in that: The transmission assembly (70) comprises a first pulley (46) group, a gear group (72), a second pulley group (73), a transmission shaft (74) and a third pulley group (75); the gear group (72) is arranged on one side of the frame (10); the drive motor (80) is transmission-connected to the gear group (72) via the first pulley (46) group; one end of the transmission shaft (74) is transmission-connected to the gear group (72) via the second pulley group (73); and the other end of the transmission shaft (74) is transmission-connected to the three forming rollers (62) via the third pulley group (75).

9. The plastic single coil forming machine according to claim 1, characterized in that: The molding machine further comprises a cooling assembly (100), the cooling assembly (100) comprising a vortex cooling tube (101) and an air blowing tube (102), the vortex cooling tube (101) being arranged on a frame (10), the air blowing tube (102) being arranged in parallel on one side of the molding assembly (60), the vortex cooling tube (101) and the air blowing tube (102) being connected via an air tube (103), and the outer wall of the air blowing tube (102) being provided with a plurality of air outlet holes (104) facing the molding assembly (60).

10. The plastic single coil forming machine according to claim 4, characterized in that: A lubrication pump (110) is also provided on the rear side of the frame (10), and the lubrication pump (110) is connected to the winding groove (53) of the roller (51) through an oil pipe (120).

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